A kind of vinyon packaging material and preparation method thereofTechnical field
The invention is related to a kind of vinyon packaging material and preparation method thereof.
Background technology
Polyethylene is the thermoplastic resin of a kind of multiplet and performance produced using ethene as monomer, and polyethylene has firmProperty, the advantage such as modulus is relatively low, electrical property is very excellent, solvent resistant, processing characteristics are excellent, polyethylene be widely used in mining industry,The fields such as pipeline, agricultural, packaging, food, chemical industry, machinery.
At present, polythene material needs further lifting in mechanical strength.Invention use recovery packaging for foodstuff polyethylene,Stalk cellulose modified polyvinyl alcohol fabric, maize straw starch, cosmetics mould inhibitor F-034 are prepared for vinyon packagingMaterial, vinyon packaging material prepared by this method have excellent mechanical strength.
The content of the invention
The purpose of the invention is to provide a kind of preparation method of vinyon packaging material, and this method is anti-by changingRaw material and technology mode are answered, the material of preparation has excellent mechanical strength.
To achieve these goals, the technical scheme of the invention is as follows.
A kind of vinyon packaging material and preparation method thereof, specifically includes following steps：(1), by corn stalk powder,Potassium phosphate, water, sodium carbonate and dipotassium hydrogen phosphate are 100 according to quality parts ratio：35~44：21~36：8~14：7~16 addInto reactor, mixing speed is 93~105r/min, back flow reaction 2 under the conditions of 135~150 DEG C of maintenance system temperature, 2MPa~6h, product is through 500 mesh sieve net filtrations, and for filtrate through 105 DEG C of spray drying, product washs 3 times through the ethanol waters of 1L 35%, and 56DEG C, -0.07MPa vacuum drying 9min, obtain maize straw starch；(2), powder of straw, water, ethanol, the concentrated sulfuric acid, chlorosulfonic acid are pressedAccording to quality parts ratio 10：28~35：14~23：6~13：32~45 are added in reactor, and mixing speed is 70~85r/3~8h is reacted under the conditions of min, 127~138 DEG C of maintenance system temperature, 2MPa, product is through 50 mesh sieve net filtrations, and filtrate is through 100Mesh sieve net filtration, 8000r/min centrifugation 10min, product wash 3 times through 500mL water washings 3 times, 500mL ethanol, in 52 DEG C ,-0.08MPa is dried in vacuo 9min, obtains stalk cellulose；(3), by vinal, stalk cellulose, carboxymethyl celluloseSodium and ethanol are according to quality parts ratio 100：7~19：5~13：57~72 are added in ball mill, and drum speed is 25~30r/Min, 15~27min is reacted under the conditions of 29~38 DEG C of maintenance system temperature, product obtains stalk through 105 DEG C of dry 15minCellulose filled polyethylene alcohol fiber；(4), will recovery level packaging for foodstuff polyethylene, neopelex, water and isopropanolAccording to quality parts ratio 60：7~15：80~95：17~30 are added in reactor, and mixing speed is 85~100r/min, dimensionHold and 3~10min is reacted under the conditions of 35~40 DEG C of system temperature, product is through 1L water washings 3 times, and 1L ethanol washs 3 times, in 46DEG C, -0.09MPa vacuum drying 13min, that is, be recycled packaging for foodstuff polyethylene；(5), will recovery packaging for foodstuff polyethylene, strawStalk fiber element modified polyvinyl alcohol fabric, maize straw starch, cosmetics mould inhibitor F-034, pentaerythritol diphosphite twoDifferent certain herbaceous plants with big flowers ester, magnesium stearate are according to quality parts ratio 100：27~41：9~17：2~9：2~6：2~7 are added to high-speed mixerIn, with high-speed mixer in 180~187 DEG C of 3~8min of hybrid reaction of temperature, made with extruder in 181~195 DEG C of extrusions of temperatureGrain, that is, obtain vinyon packaging material.
The preparation method of vinyon packaging material described in the invention, comprises the following steps：
(1) it is, 100 according to quality parts ratio by corn stalk powder, potassium phosphate, water, sodium carbonate and dipotassium hydrogen phosphate：35~44：21~36：8~14：7~16 are added in reactor, and mixing speed is 93~105r/min, maintenance system temperature 135~150DEG C, 2~6h of back flow reaction under the conditions of 2MPa, product is through 500 mesh sieve net filtrations, and filtrate is through 105 DEG C of spray drying, and product is through 1L35% ethanol water washs 3 times, 56 DEG C, -0.07MPa vacuum drying 9min, obtains maize straw starch；Described potassium phosphate,The purpose of sodium carbonate and dipotassium hydrogen phosphate is for the extraction time for improving the leaching rate of cornstarch with shortening cornstarch.
(2), by powder of straw, water, ethanol, the concentrated sulfuric acid, chlorosulfonic acid according to quality parts ratio 10：28~35：14~23：6~13：32~45 are added in reactor, and mixing speed is 70~85r/min, 127~138 DEG C of maintenance system temperature, 2MPa bars3~8h is reacted under part, product centrifuges 10min, product through 50 mesh sieve net filtrations, filtrate through 100 mesh sieve net filtrations, 8000r/minWashed 3 times through 500mL water washings 3 times, 500mL ethanol, in 52 DEG C, -0.08MPa vacuum drying 9min, obtain stalk cellulose；The described concentrated sulfuric acid and the purpose of chlorosulfonic acid are in order to improve the leaching rate of stalk cellulose and crystallinity.
(3), by vinal, stalk cellulose, sodium carboxymethylcellulose and ethanol according to quality parts ratio 100：7~19：5~13：57~72 are added in ball mill, and drum speed is 25~30r/min, 29~38 DEG C of bars of maintenance system temperature15~27min is reacted under part, product obtains stalk cellulose filled polyethylene alcohol fiber through 105 DEG C of dry 15min；It is describedVinal compatibility and dispersion stabilization of the purpose for stalk cellulose in polyethylene.
(4) level packaging for foodstuff polyethylene, neopelex, water and isopropanol will, be reclaimed according to quality parts ratio60：7~15：80~95：17~30 are added in reactor, and mixing speed is 85~100r/min, and maintenance system temperature 35~3~10min is reacted under the conditions of 40 DEG C, product is washed 3 times, done in 46 DEG C, -0.09MPa vacuum through 1L water washings 3 times, 1L ethanolDry 13min, that is, it is recycled packaging for foodstuff polyethylene；Described neopelex and the purpose of isopropanol are in order to removeReclaim the pollutant of level packaging for foodstuff polyethylene surface.
(5), will recovery packaging for foodstuff polyethylene, stalk cellulose modified polyvinyl alcohol fabric, maize straw starch, cosmeticThe different certain herbaceous plants with big flowers ester of product mould inhibitor F-034, pentaerythritol diphosphite two, magnesium stearate are according to quality parts ratio 100：27~41：9~17：2~9：2~6：2~7 are added in high-speed mixer, with high-speed mixer 180~187 DEG C of hybrid reactions 3 of temperature~8min, with extruder in 181~195 DEG C of extruding pelletizations of temperature, that is, obtain vinyon packaging material.
The beneficial effect of the invention is：
1st, alkalescence is presented in potassium phosphate, sodium carbonate and dipotassium hydrogen phosphate in aqueous, under high-temperature and high-pressure conditions, can be catalyzed and carryThe crystallinity of the leaching rate of cornstarch, the extraction time for shortening cornstarch and raising cornstarch in high corn stalk powder；The cornstarch of preparation can induce and improve the crystallinity of polyethylene, so as to improve the mechanical strength of polyethylene；
2nd, chlorosulfonic acid has strong acidity and permeability, and under the synergy of the concentrated sulfuric acid, chlorosulfonic acid can improve stalk celluloseLeaching rate and crystallinity, the stalk fibre of preparation can induce and improve the crystallinity of polyethylene, so as to improve polyethyleneMechanical strength；
3rd, stalk cellulose can be disperseed, polyvinyl alcohol in the presence of sodium carboxymethylcellulose in vinalFiber can improve compatibility and dispersion stabilization of the stalk cellulose in polyethylene；And vinal has excellent powerIntensity is learned, in the case where being acted synergistically with stalk cellulose, the mechanical strength of polyethylene can be improved；
4th, recovery level packaging for foodstuff polyethylene surface generally there is organic or inorganic pollutant, by neopelex withIsopropanol processing, the obvious pollutant of recovery level packaging for foodstuff polyethylene surface can be removed, so as to ensure recovery level packaging for foodstuffThe mechanical strength of polyethylene；
5th, prevent by recovery packaging for foodstuff polyethylene, stalk cellulose modified polyvinyl alcohol fabric, maize straw starch, cosmeticsUnder mould dose of F-034 synergy, assign polyethylene excellent mechanical strength；
6th, recovery packaging for foodstuff polyethylene belongs to technics of reclaim of plastic waste, and a kind of new approaches are provided to solve plastics recovery.
Embodiment
The embodiment of the invention is described with reference to embodiment, to be better understood from the invention.
Embodiment 1
A kind of vinyon packaging material, its preparation method comprise the following steps：
(1) 100 parts of corn stalk powders, 40 parts of potassium phosphates, 27 parts of water, 11 parts of sodium carbonate and 10 parts of dipotassium hydrogen phosphates, are weighed to addInto reactor, mixing speed 95r/min, back flow reaction 3h under the conditions of 140 DEG C of maintenance system temperature, 2MPa, product warp500 mesh sieve net filtrations, filtrate are washed 3 times through 105 DEG C of spray drying, product through the ethanol waters of 1L 35%, 56 DEG C, -0.07MPa9min is dried in vacuo, obtains maize straw starch；
(2) 10 parts of powder of straw, 30 parts of water, 17 parts of ethanol, 9 parts of concentrated sulfuric acids, 37 parts of chlorosulfonic acids, are weighed to be added in reactor, are stirredIt is 75r/min to mix speed, 3h is reacted under the conditions of 133 DEG C of maintenance system temperature, 2MPa, product is through 50 mesh sieve net filtrations, filtrate warp100 mesh sieve net filtrations, 8000r/min centrifugation 10min, product washs 3 times through 500mL water washings 3 times, 500mL ethanol, in 52DEG C, -0.08MPa vacuum drying 9min, obtain stalk cellulose；
(3) 100 parts of vinals, 13 parts of stalk celluloses, 9 parts of sodium carboxymethylcelluloses and 66 parts of ethanol, are weighed to addInto ball mill, drum speed 27r/min, 18min is reacted under the conditions of 35 DEG C of maintenance system temperature, product is through 105 DEG C of dryings15min, that is, obtain stalk cellulose filled polyethylene alcohol fiber；
(4) 60 parts of recovery level packaging for foodstuff polyethylene, 9 parts of neopelexes, 90 parts of water and 20 parts of isopropanols, are weighed to addEnter into reactor, mixing speed 90r/min, 6min is reacted under the conditions of 38 DEG C of maintenance system temperature, product is through 1L water washings3 times, 1L ethanol washs 3 times, in 46 DEG C, -0.09MPa vacuum drying 13min, that is, is recycled packaging for foodstuff polyethylene；
(5) 100 parts of recovery packaging for foodstuff polyethylene, 35 parts of stalk cellulose modified polyvinyl alcohol fabrics, 11 parts of corn stalks, are weighedStalk starch, 6 parts of cosmetics mould inhibitor F-034, the different certain herbaceous plants with big flowers ester of 4 parts of pentaerythritol diphosphites two, 4 parts of magnesium stearates are added to heightIn fast mixer, with high-speed mixer in 182 DEG C of hybrid reaction 4min of temperature, with extruder in 188 DEG C of extruding pelletizations of temperature, i.e.,Obtain vinyon packaging material.
Embodiment 2
A kind of vinyon packaging material, its preparation method comprise the following steps：
(1) 100 parts of corn stalk powders, 35 parts of potassium phosphates, 21 parts of water, 8 parts of sodium carbonate and 7 parts of dipotassium hydrogen phosphates, are weighed to be added toIn reactor, mixing speed 93r/min, back flow reaction 2h under the conditions of 135 DEG C of maintenance system temperature, 2MPa, product is through 500Mesh sieve net filtration, filtrate through 105 DEG C spray drying, product through the ethanol waters of 1L 35% wash 3 times, 56 DEG C, -0.07MPa it is trueSky dries 9min, obtains maize straw starch；
(2) 10 parts of powder of straw, 28 parts of water, 14 parts of ethanol, 6 parts of concentrated sulfuric acids, 32 parts of chlorosulfonic acids, are weighed to be added in reactor, are stirredIt is 70r/min to mix speed, 3h is reacted under the conditions of 127 DEG C of maintenance system temperature, 2MPa, product is through 50 mesh sieve net filtrations, filtrate warp100 mesh sieve net filtrations, 8000r/min centrifugation 10min, product washs 3 times through 500mL water washings 3 times, 500mL ethanol, in 52DEG C, -0.08MPa vacuum drying 9min, obtain stalk cellulose；
(3) 100 parts of vinals, 7 parts of stalk celluloses, 5 parts of sodium carboxymethylcelluloses and 57 parts of ethanol, are weighed to be added toIn ball mill, drum speed 25r/min, 27min is reacted under the conditions of 29 DEG C of maintenance system temperature, product is through 105 DEG C of dryings15min, that is, obtain stalk cellulose filled polyethylene alcohol fiber；
(4) 60 parts of recovery level packaging for foodstuff polyethylene, 7 parts of neopelexes, 80 parts of water and 17 parts of isopropanols, are weighed to addEnter into reactor, mixing speed 85r/min, react 10min under the conditions of 35 DEG C of maintenance system temperature, product is washed through 1LWash 3 times, 1L ethanol washs 3 times, in 46 DEG C, -0.09MPa vacuum drying 13min, that is, is recycled packaging for foodstuff polyethylene；
(5) 100 parts of recovery packaging for foodstuff polyethylene, 27 parts of stalk cellulose modified polyvinyl alcohol fabrics, 9 parts of corn stalks, are weighedStalk starch, 2 parts of cosmetics mould inhibitor F-034, the different certain herbaceous plants with big flowers ester of 2 parts of pentaerythritol diphosphites two, 2 parts of magnesium stearates are added to heightIn fast mixer, with high-speed mixer in 180 DEG C of hybrid reaction 8min of temperature, with extruder in 181 DEG C of extruding pelletizations of temperature, i.e.,Obtain vinyon packaging material.
Embodiment 3
A kind of vinyon packaging material, its preparation method comprise the following steps：
(1) 100 parts of corn stalk powders, 44 parts of potassium phosphates, 36 parts of water, 14 parts of sodium carbonate and 16 parts of dipotassium hydrogen phosphates, are weighed to addInto reactor, mixing speed 105r/min, back flow reaction 6h under the conditions of 150 DEG C of maintenance system temperature, 2MPa, product warp500 mesh sieve net filtrations, filtrate are washed 3 times through 105 DEG C of spray drying, product through the ethanol waters of 1L 35%, 56 DEG C, -0.07MPa9min is dried in vacuo, obtains maize straw starch；
(2) 10 parts of powder of straw, 35 parts of water, 23 parts of ethanol, 13 parts of concentrated sulfuric acids, 45 parts of chlorosulfonic acids, are weighed to be added in reactor, are stirredIt is 85r/min to mix speed, 8h is reacted under the conditions of 138 DEG C of maintenance system temperature, 2MPa, product is through 50 mesh sieve net filtrations, filtrate warp100 mesh sieve net filtrations, 8000r/min centrifugation 10min, product washs 3 times through 500mL water washings 3 times, 500mL ethanol, in 52DEG C, -0.08MPa vacuum drying 9min, obtain stalk cellulose；
(3) 100 parts of vinals, 19 parts of stalk celluloses, 13 parts of sodium carboxymethylcelluloses and 72 parts of ethanol, are weighed to addInto ball mill, drum speed 30r/min, 15min is reacted under the conditions of 38 DEG C of maintenance system temperature, product is through 105 DEG C of dryings15min, that is, obtain stalk cellulose filled polyethylene alcohol fiber；
(4) 60 parts of recovery level packaging for foodstuff polyethylene, 15 parts of neopelexes, 95 parts of water and 30 parts of isopropanols, are weighedIt is added in reactor, mixing speed 100r/min, 3min is reacted under the conditions of 40 DEG C of maintenance system temperature, product is through 1L waterWashing 3 times, 1L ethanol wash 3 times, in 46 DEG C, -0.09MPa vacuum drying 13min, that is, are recycled packaging for foodstuff polyethylene；
(5) 100 parts of recovery packaging for foodstuff polyethylene, 41 parts of stalk cellulose modified polyvinyl alcohol fabrics, 17 parts of corn stalks, are weighedStalk starch, 9 parts of cosmetics mould inhibitor F-034, the different certain herbaceous plants with big flowers ester of 6 parts of pentaerythritol diphosphites two, 7 parts of magnesium stearates are added to heightIn fast mixer, with high-speed mixer in 187 DEG C of hybrid reaction 3min of temperature, with extruder in 195 DEG C of extruding pelletizations of temperature, i.e.,Obtain vinyon packaging material.
Embodiment 4
A kind of vinyon packaging material, its preparation method comprise the following steps：
(1) 100 parts of corn stalk powders, 40 parts of potassium phosphates, 25 parts of water, 10 parts of sodium carbonate and 15 parts of dipotassium hydrogen phosphates, are weighed to addInto reactor, mixing speed 99r/min, back flow reaction 4h under the conditions of 139 DEG C of maintenance system temperature, 2MPa, product warp500 mesh sieve net filtrations, filtrate are washed 3 times through 105 DEG C of spray drying, product through the ethanol waters of 1L 35%, 56 DEG C, -0.07MPa9min is dried in vacuo, obtains maize straw starch；
(2) 10 parts of powder of straw, 29 parts of water, 22 parts of ethanol, 11 parts of concentrated sulfuric acids, 35 parts of chlorosulfonic acids, are weighed to be added in reactor, are stirredIt is 73r/min to mix speed, 4h is reacted under the conditions of 131 DEG C of maintenance system temperature, 2MPa, product is through 50 mesh sieve net filtrations, filtrate warp100 mesh sieve net filtrations, 8000r/min centrifugation 10min, product washs 3 times through 500mL water washings 3 times, 500mL ethanol, in 52DEG C, -0.08MPa vacuum drying 9min, obtain stalk cellulose；
(3) 100 parts of vinals, 9 parts of stalk celluloses, 8 parts of sodium carboxymethylcelluloses and 59 parts of ethanol, are weighed to be added toIn ball mill, drum speed 27r/min, 18min is reacted under the conditions of 32 DEG C of maintenance system temperature, product is through 105 DEG C of dryings15min, that is, obtain stalk cellulose filled polyethylene alcohol fiber；
(4) 60 parts of recovery level packaging for foodstuff polyethylene, 14 parts of neopelexes, 87 parts of water and 23 parts of isopropanols, are weighedIt is added in reactor, mixing speed 93r/min, reacts 6min under the conditions of 37 DEG C of maintenance system temperature, product is washed through 1LWash 3 times, 1L ethanol washs 3 times, in 46 DEG C, -0.09MPa vacuum drying 13min, that is, is recycled packaging for foodstuff polyethylene；
(5) 100 parts of recovery packaging for foodstuff polyethylene, 40 parts of stalk cellulose modified polyvinyl alcohol fabrics, 14 parts of corn stalks, are weighedStalk starch, 5 parts of cosmetics mould inhibitor F-034, the different certain herbaceous plants with big flowers ester of 4 parts of pentaerythritol diphosphites two, 4 parts of magnesium stearates are added to heightIn fast mixer, with high-speed mixer in 184 DEG C of hybrid reaction 6min of temperature, with extruder in 189 DEG C of extruding pelletizations of temperature, i.e.,Obtain vinyon packaging material.
Embodiment 5
A kind of vinyon packaging material, its preparation method comprise the following steps：
(1) 100 parts of corn stalk powders, 39 parts of potassium phosphates, 33 parts of water, 13 parts of sodium carbonate and 15 parts of dipotassium hydrogen phosphates, are weighed to addInto reactor, mixing speed 102r/min, back flow reaction 4h under the conditions of 141 DEG C of maintenance system temperature, 2MPa, product warp500 mesh sieve net filtrations, filtrate are washed 3 times through 105 DEG C of spray drying, product through the ethanol waters of 1L 35%, 56 DEG C, -0.07MPa9min is dried in vacuo, obtains maize straw starch；
(2) 10 parts of powder of straw, 31 parts of water, 17 parts of ethanol, 8 parts of concentrated sulfuric acids, 34 parts of chlorosulfonic acids, are weighed to be added in reactor, are stirredIt is 79r/min to mix speed, 6h is reacted under the conditions of 135 DEG C of maintenance system temperature, 2MPa, product is through 50 mesh sieve net filtrations, filtrate warp100 mesh sieve net filtrations, 8000r/min centrifugation 10min, product washs 3 times through 500mL water washings 3 times, 500mL ethanol, in 52DEG C, -0.08MPa vacuum drying 9min, obtain stalk cellulose；
(3) 100 parts of vinals, 17 parts of stalk celluloses, 11 parts of sodium carboxymethylcelluloses and 70 parts of ethanol, are weighed to addInto ball mill, drum speed 28r/min, 25min is reacted under the conditions of 34 DEG C of maintenance system temperature, product is through 105 DEG C of dryings15min, that is, obtain stalk cellulose filled polyethylene alcohol fiber；
(4) 60 parts of recovery level packaging for foodstuff polyethylene, 13 parts of neopelexes, 93 parts of water and 28 parts of isopropanols, are weighedIt is added in reactor, mixing speed 90r/min, reacts 8min under the conditions of 37 DEG C of maintenance system temperature, product is washed through 1LWash 3 times, 1L ethanol washs 3 times, in 46 DEG C, -0.09MPa vacuum drying 13min, that is, is recycled packaging for foodstuff polyethylene；
(5) 100 parts of recovery packaging for foodstuff polyethylene, 40 parts of stalk cellulose modified polyvinyl alcohol fabrics, 16 parts of corn stalks, are weighedStalk starch, 3 parts of cosmetics mould inhibitor F-034, the different certain herbaceous plants with big flowers ester of 3 parts of pentaerythritol diphosphites two, 4 parts of magnesium stearates are added to heightIn fast mixer, with high-speed mixer in 183 DEG C of hybrid reaction 5min of temperature, with extruder in 190 DEG C of extruding pelletizations of temperature, i.e.,Obtain vinyon packaging material.
Embodiment 6
A kind of vinyon packaging material, its preparation method comprise the following steps：
(1) 100 parts of corn stalk powders, 37 parts of potassium phosphates, 34 parts of water, 10 parts of sodium carbonate and 13 parts of dipotassium hydrogen phosphates, are weighed to addInto reactor, mixing speed 101r/min, back flow reaction 4h under the conditions of 146 DEG C of maintenance system temperature, 2MPa, product warp500 mesh sieve net filtrations, filtrate are washed 3 times through 105 DEG C of spray drying, product through the ethanol waters of 1L 35%, 56 DEG C, -0.07MPa9min is dried in vacuo, obtains maize straw starch；
(2) 10 parts of powder of straw, 32 parts of water, 22 parts of ethanol, 10 parts of concentrated sulfuric acids, 44 parts of chlorosulfonic acids, are weighed to be added in reactor, are stirredIt is 81r/min to mix speed, 4h is reacted under the conditions of 133 DEG C of maintenance system temperature, 2MPa, product is through 50 mesh sieve net filtrations, filtrate warp100 mesh sieve net filtrations, 8000r/min centrifugation 10min, product washs 3 times through 500mL water washings 3 times, 500mL ethanol, in 52DEG C, -0.08MPa vacuum drying 9min, obtain stalk cellulose；
(3) 100 parts of vinals, 12 parts of stalk celluloses, 6 parts of sodium carboxymethylcelluloses and 70 parts of ethanol, are weighed to addInto ball mill, drum speed 27r/min, 18min is reacted under the conditions of 33 DEG C of maintenance system temperature, product is through 105 DEG C of dryings15min, that is, obtain stalk cellulose filled polyethylene alcohol fiber；
(4) 60 parts of recovery level packaging for foodstuff polyethylene, 9 parts of neopelexes, 91 parts of water and 19 parts of isopropanols, are weighed to addEnter into reactor, mixing speed 93r/min, 8min is reacted under the conditions of 38 DEG C of maintenance system temperature, product is through 1L water washings3 times, 1L ethanol washs 3 times, in 46 DEG C, -0.09MPa vacuum drying 13min, that is, is recycled packaging for foodstuff polyethylene；
(5) 100 parts of recovery packaging for foodstuff polyethylene, 40 parts of stalk cellulose modified polyvinyl alcohol fabrics, 13 parts of corn stalks, are weighedStalk starch, 4 parts of cosmetics mould inhibitor F-034, the different certain herbaceous plants with big flowers ester of 3 parts of pentaerythritol diphosphites two, 4 parts of magnesium stearates are added to heightIn fast mixer, with high-speed mixer in 183 DEG C of hybrid reaction 6min of temperature, with extruder in 189 DEG C of extruding pelletizations of temperature, i.e.,Obtain vinyon packaging material.
Embodiment 7
A kind of vinyon packaging material, its preparation method comprise the following steps：
(1) 100 parts of corn stalk powders, 37 parts of potassium phosphates, 32 parts of water, 11 parts of sodium carbonate and 13 parts of dipotassium hydrogen phosphates, are weighed to addInto reactor, mixing speed 102r/min, back flow reaction 3h under the conditions of 139 DEG C of maintenance system temperature, 2MPa, product warp500 mesh sieve net filtrations, filtrate are washed 3 times through 105 DEG C of spray drying, product through the ethanol waters of 1L 35%, 56 DEG C, -0.07MPa9min is dried in vacuo, obtains maize straw starch；
(2) 10 parts of powder of straw, 33 parts of water, 18 parts of ethanol, 12 parts of concentrated sulfuric acids, 41 parts of chlorosulfonic acids, are weighed to be added in reactor, are stirredIt is 78r/min to mix speed, 6h is reacted under the conditions of 135 DEG C of maintenance system temperature, 2MPa, product is through 50 mesh sieve net filtrations, filtrate warp100 mesh sieve net filtrations, 8000r/min centrifugation 10min, product washs 3 times through 500mL water washings 3 times, 500mL ethanol, in 52DEG C, -0.08MPa vacuum drying 9min, obtain stalk cellulose；
(3) 100 parts of vinals, 14 parts of stalk celluloses, 11 parts of sodium carboxymethylcelluloses and 59 parts of ethanol, are weighed to addInto ball mill, drum speed 28r/min, 23min is reacted under the conditions of 36 DEG C of maintenance system temperature, product is through 105 DEG C of dryings15min, that is, obtain stalk cellulose filled polyethylene alcohol fiber；
(4) 60 parts of recovery level packaging for foodstuff polyethylene, 9 parts of neopelexes, 87 parts of water and 23 parts of isopropanols, are weighed to addEnter into reactor, mixing speed 93r/min, 5min is reacted under the conditions of 37 DEG C of maintenance system temperature, product is through 1L water washings3 times, 1L ethanol washs 3 times, in 46 DEG C, -0.09MPa vacuum drying 13min, that is, is recycled packaging for foodstuff polyethylene；
(5) 100 parts of recovery packaging for foodstuff polyethylene, 36 parts of stalk cellulose modified polyvinyl alcohol fabrics, 14 parts of corn stalks, are weighedStalk starch, 6 parts of cosmetics mould inhibitor F-034, the different certain herbaceous plants with big flowers ester of 5 parts of pentaerythritol diphosphites two, 3 parts of magnesium stearates are added to heightIn fast mixer, with high-speed mixer in 182 DEG C of hybrid reaction 6min of temperature, with extruder in 187 DEG C of extruding pelletizations of temperature, i.e.,Obtain vinyon packaging material.
Embodiment 8
A kind of vinyon packaging material, its preparation method comprise the following steps：
(1) 100 parts of corn stalk powders, 41 parts of potassium phosphates, 32 parts of water, 10 parts of sodium carbonate and 9 parts of dipotassium hydrogen phosphates, are weighed to be added toIn reactor, mixing speed 100r/min, back flow reaction 3h under the conditions of 140 DEG C of maintenance system temperature, 2MPa, product is through 500Mesh sieve net filtration, filtrate through 105 DEG C spray drying, product through the ethanol waters of 1L 35% wash 3 times, 56 DEG C, -0.07MPa it is trueSky dries 9min, obtains maize straw starch；
(2) 10 parts of powder of straw, 34 parts of water, 21 parts of ethanol, 9 parts of concentrated sulfuric acids, 37 parts of chlorosulfonic acids, are weighed to be added in reactor, are stirredIt is 77r/min to mix speed, 5h is reacted under the conditions of 137 DEG C of maintenance system temperature, 2MPa, product is through 50 mesh sieve net filtrations, filtrate warp100 mesh sieve net filtrations, 8000r/min centrifugation 10min, product washs 3 times through 500mL water washings 3 times, 500mL ethanol, in 52DEG C, -0.08MPa vacuum drying 9min, obtain stalk cellulose；
(3) 100 parts of vinals, 18 parts of stalk celluloses, 8 parts of sodium carboxymethylcelluloses and 65 parts of ethanol, are weighed to addInto ball mill, drum speed 26r/min, 21min is reacted under the conditions of 37 DEG C of maintenance system temperature, product is through 105 DEG C of dryings15min, that is, obtain stalk cellulose filled polyethylene alcohol fiber；
(4) 60 parts of recovery level packaging for foodstuff polyethylene, 9 parts of neopelexes, 89 parts of water and 19 parts of isopropanols, are weighed to addEnter into reactor, mixing speed 93r/min, 4min is reacted under the conditions of 36 DEG C of maintenance system temperature, product is through 1L water washings3 times, 1L ethanol washs 3 times, in 46 DEG C, -0.09MPa vacuum drying 13min, that is, is recycled packaging for foodstuff polyethylene；
(5) 100 parts of recovery packaging for foodstuff polyethylene, 33 parts of stalk cellulose modified polyvinyl alcohol fabrics, 17 parts of corn stalks, are weighedStalk starch, 8 parts of cosmetics mould inhibitor F-034, the different certain herbaceous plants with big flowers ester of 3 parts of pentaerythritol diphosphites two, 4 parts of magnesium stearates are added to heightIn fast mixer, with high-speed mixer in 186 DEG C of hybrid reaction 5min of temperature, with extruder in 193 DEG C of extruding pelletizations of temperature, i.e.,Obtain vinyon packaging material.
Reference examples 1
In this reference examples, maize straw starch is not added, and other components and preparation method are same as Example 1.
Reference examples 2
In this reference examples, stalk cellulose is not added, other components and preparation method are same as Example 1.
Reference examples 3
In this reference examples, stalk cellulose filled polyethylene alcohol fiber, other components and preparation method and the phase of embodiment 1 are not addedTogether.
Reference examples 4
In this reference examples, recovery packaging for foodstuff polyethylene is not added, other components and preparation method are same as Example 1.
Reference examples 5
In this reference examples, from the maize straw starch in common starch alternate embodiment 1, other components and preparation side in formulaMethod is same as Example 1.
Reference examples 6
In this reference examples, from the stalk cellulose in general fibre element alternate embodiment 1, other components and preparation side in formulaMethod is same as Example 1.
Reference examples 7
In this reference examples, the stalk cellulose filled polyethylene alcohol selected in formula in common polythene alcohol alternate embodiment 1 is fineDimension, other components and preparation method are same as Example 1.
Reference examples 8
In this reference examples, gathered in formula from the recovery packaging for foodstuff in common recovery packaging for foodstuff polyethylene alternate embodiment 1Ethene, other components and preparation method are same as Example 1.
The performance parameter of vinyon packaging material made from the embodiment 1 of table 1 and reference examples 1~8
| Embodiment 1 | Reference examples 1 | Reference examples 2 | Reference examples 3 | Reference examples 4 | Reference examples 5 | Reference examples 6 | Reference examples 7 | Reference examples 8 |
| Tensile strength/MPa | 58 | 55 | 52 | 46 | 53 | 50 | 48 | 44 | 55 |
Described above is the preferred embodiment of the invention, it is noted that for those skilled in the art,On the premise of the inventive principle is not departed from, some improvements and modifications can also be made, these improvements and modifications are also considered as the hairBright protection domain.