Background
Memory Foam (Memory Foam), also known as slow-rebound sponge, is a polyurethane high-molecular polymer with an Open-cell structure (Open-cell), and the material has remarkable viscoelasticity and softness characteristics and strong impact energy absorption capacity. The Open-cell structure (Open-cell) of the memory foam can generate 'flow' to shift and deform when being pressed by external force, and the material can uniformly and slowly rebound by the contact surface of the attached pressing object under the action of intermolecular van der waals force, so that the pressure is uniformly dispersed to the whole contact surface, and the deformed material can slowly recover to the original shape when the pressure is eliminated. Therefore, the memory foam is also widely applied to pillow inner cores, throw pillow inner cores, cushions, back cushions and the like, and the comfort level and experience of users are obviously improved.
Although the currently commonly used throw pillow core also adopts polyurethane memory foam, the pillow core has a slow rebound memory effect, the stuffiness is easily generated when the throw pillow is used in hot summer, and particularly when a user holds the throw pillow, the heat of the contact part of the throw pillow and a human body is not easily dissipated, so the stuffiness is aggravated, and the use experience is reduced.
In view of the above-mentioned related technologies, the inventor believes that the existing memory foam pillow has poor heat dissipation effect and is easy to generate stuffy feeling in practical use, and needs to be further improved.
Disclosure of Invention
In order to improve the heat dissipation effect of the memory foam pillow and endow the memory foam pillow with special cool comfort for a user when the memory foam pillow is used in summer, the application provides the cool bamboo charcoal memory foam pillow.
The application provides a antibiotic mould proof memory cotton of washable, adopts following technical scheme:
the cool bamboo charcoal memory foam pillow comprises a pillow case and a polyurethane memory foam pillow core filled in the pillow case, wherein a cool gel sheet is arranged on the inner side of the pillow case, and the cool gel sheet is prepared from the following raw materials in parts by weight: 55-80 parts of combined polyether polyol, 15-32 parts of high-resilience polyether polyol, 10-12 parts of temperature-sensitive polyether, 0.3-0.8 part of chain extender, 0.1-0.5 part of chain extension cross-linking agent, 0.9-1.2 parts of weak catalyst, 0.5-1.5 parts of foaming agent, 0.3-0.8 part of foam stabilizer, 15-25 parts of natural bamboo charcoal powder, 8-15 parts of cool additive and 45-60 parts of isocyanate.
Through adopting above-mentioned technical scheme, owing to hold the cool gel piece of pillow cover inside setting, the user is when holding the pillow in hot summer, and cool gel piece can be lost the heat quick conduction between human body and the pillow, gives other people cool comfort. In the raw material formula of the cool gel sheet, the combined polyether polyol and the high-resilience polyether polyol are adopted for matching, and the combined polyether polyol and the high-resilience polyether polyol are subjected to polymerization reaction with isocyanate under the slow catalysis action of a weak catalyst, so that high-resilience and semi-rigid polyurethane foam plastic is formed; the temperature-sensitive polyether is a slow rebound polyether, and on one hand, the polymer can be endowed with slow rebound performance, so that the deformation memory effect of the material is improved; on the other hand, the temperature-sensitive polyether can remarkably improve the weather resistance and the moisture resistance of the material, so that the polyurethane foam material can keep the stability of the overall elasticity and the slow rebound effect when the environmental temperature and the humidity change, and the hardness of the polyurethane foam material can not obviously change, thereby keeping the stability of the service performance of the material and the use experience of the material; the addition of the cool feeling additive enables the high-resilience semi-rigid polyurethane foam plastic to be cool and finished, and then cool gel sheets with special cool and comfortable feelings are formed; the natural bamboo charcoal powder has abundant pore structures, can absorb peculiar smell, and has natural bactericidal effect, thereby improving the inhibition and killing effect of the cool gel sheet on bacteria; the foaming agent enables certain foam to be formed during polyurethane polymerization reaction to promote the formation of a polyurethane material cell structure, and the foam homogenizing agent can promote the uniformity and the stability of the foam, so that the formed cell structure is uniformly distributed and has high consistency; the chain extender can promote the chain growth reaction of the polyurethane elastomer during polymerization, and the chain extension cross-linking agent can promote the chain growth reaction of the polymer and form cross-linking points among chain links so that the polymer can form a spatial three-dimensional mesh structure.
Preferably, the high resilience polyether polyol is in the range of 18 to 30 parts by weight.
Through adopting above-mentioned technical scheme, can further improve the mechanical properties of the cool gel piece of the polyurethane material that the final reaction was made through optimizing the addition of high resilience polyether polyol, impel cool gel piece to possess more excellent high resilience to help promoting the quality and the use experience of holding the pillow.
Preferably, the combined polyether polyol comprises two mixtures of a polymer polyol A with a hydroxyl value of 21-27mgKOH/g and a polymer polyol B with a hydroxyl value of 26-30mgKOH/g, and the mass ratio of the polymer polyol A to the polymer polyol B is 1 (1-2).
By adopting the technical scheme, the polymer polyol A with the hydroxyl value of 21-27mgKOH/g and the polymer polyol B with the hydroxyl value of 26-30mgKOH/g are compounded and mixed, the process of polyurethane polymerization reaction can be controlled by adjusting the hydroxyl value of the polymer polyol, so that the reaction is more controllable, and the polymer material prepared by the reaction has more excellent material performance; by setting the mass ratio of the polymer polyol A to the polymer polyol B, the hydroxyl value and the acid value of the combined polyether polyol can be promoted to be better balanced, and the effect of further effectively controlling the progress of the polymerization reaction of the isocyanate is achieved.
Preferably, the hydroxyl value of the high resilience polyether polyol is 32-36mgKOH/g, and the acid value of the high resilience polyether polyol is 0.05-0.10 mgKOH/g.
By adopting the technical scheme, the high-resilience polyether polyol with proper hydroxyl value and acid value is selected, the reaction process of the polymer can be further controlled, the number of micropores formed by the internal reaction of the polymer and the uniformity and evenness of the distribution of the micropore structure are optimized, and the effect of further improving the high-resilience adaptability of the polyurethane material is achieved.
Preferably, the raw material of the cooling gel sheet also comprises 8-12 parts of hydrophobic polyol polyether.
By adopting the technical scheme, hydrophobic polyether polyol is introduced in the polymerization reaction, so that hydrophobic groups can be introduced into polymer molecular chains, the polymer has better hydrophobicity, and the water washing resistance and the quick-drying performance of the product are effectively improved.
Preferably, the raw material of the cooling gel sheet also comprises 5-8 parts of an antibacterial and mildewproof agent.
By adopting the technical scheme, the antimicrobial property of the polymer material can be effectively improved by adding the antimicrobial mildew preventive into the formula, so that the growth of bacteria and mould of the product can be inhibited and killed, and the sanitation of the product is effectively improved.
Preferably, the weak catalyst is an environmentally friendly organozinc catalyst.
By adopting the technical scheme, on one hand, the environment-friendly organic zinc is a green environment-friendly polyurethane catalyst, the catalytic activity of the environment-friendly organic zinc is weaker, the flowing period of the mixed materials can be prolonged, and the polymerization reaction is more gentle and uniform; on the other hand, the organic zinc can not only catalyze the reaction of isocyanate and hydroxyl to generate carbamate, but also promote the cross-linking side reaction, and is beneficial to improving the strength of polyurethane cross-linking reaction and later curing.
Preferably, the particle size of the natural bamboo charcoal powder is 50-120 nm.
By adopting the technical scheme, the particle size of the natural bamboo charcoal powder is set to be 50-120nm grade, so that the natural bamboo charcoal powder can be more uniformly dispersed in a reaction mixture system, the cool gel has more uniform antibacterial and odor removing performances, and the product quality is further improved.
Preferably, the fabric of the pillowslip is a bamboo charcoal viscose fiber and polyester fiber blended fabric.
By adopting the technical scheme, the bamboo charcoal viscose fiber has stronger toughness and wear resistance, the cross section of the fiber has rich natural pore structures, and a large amount of water can be absorbed and evaporated instantly, so that the ventilation and heat dissipation performance of the throw pillow can be remarkably improved, and meanwhile, the bamboo charcoal viscose fiber also endows the throw pillow fabric with certain antibacterial performance; the polyester fiber has high strength and good chemical stability, and can further improve the strength and the wear resistance of the fabric by being blended with the bamboo charcoal viscose fiber, and improve the service durability of the pillowslip.
Preferably, the mass percentage of the bamboo charcoal viscose fiber in the throw pillow cover fabric fiber is 30-50%, and the balance is polyester fiber.
By adopting the technical scheme, the overall quality of the throw pillow fabric can be optimized by setting the mass percentage of the bamboo charcoal viscose fiber, and the use performance of the throw pillow fabric is further improved.
In summary, the present application has the following beneficial effects:
1. the cool gel sheet is arranged inside the throw pillow cover, so that when a user holds the throw pillow in hot summer, the cool gel sheet can quickly conduct and dissipate heat between a human body and the throw pillow, and cool comfort is brought to people;
2. the raw material formula of the cool gel sheet adopts the combination polyether polyol and the high resilience polyether polyol for matching, and the combination polyether polyol and the high resilience polyether polyol are subjected to polymerization reaction with isocyanate under the slow catalysis action of a weak catalyst, so that the high resilience and semi-rigid polyurethane foam plastic is formed;
3. the addition of the cool feeling additive enables the high-resilience semi-rigid polyurethane foam plastic to be cool and finished, and then cool gel sheets with special cool and comfortable feelings are formed; the natural bamboo charcoal powder has abundant pore structure, can absorb peculiar smell, and has natural bactericidal effect, thereby improving the effect of the cool gel sheet on inhibiting and killing bacteria.
Detailed Description
The present application will be described in further detail with reference to examples.
Examples
Some of the raw materials in the examples of this application are as follows:
the polymer polyol A is GP-3630 polymer polyol of Jiangsu Ching chemical industry Co., Ltd, the polymer polyol B is GP102 polymer polyol of Jiangsu Ching chemical industry Co., Ltd, the high resilience polyether polyol is ZS-1618D product of Jiangsu Ching chemical industry Co., Ltd, the hydrophobic polyether polyol is Dow D3201 polyether polyol purchased from Shanghai Xiangkang science and technology development Co., Ltd, the temperature-sensitive polyether is BDM-107 product of Huaian Bade polyurethane science and technology Co., Ltd, and the cooling additive is COOL which is a cooling finishing agent of Zhejiang Fuer New type materials Co., Ltd.
The embodiment of the application discloses a cool bamboo charcoal memory foam pillow.
Example 1: a cool bamboo charcoal memory cotton pillow comprises a pillow case and a polyurethane memory cotton pillow core filled in the pillow case, wherein the fabric of the pillow case is a blended fabric of bamboo charcoal viscose fiber and polyester fiber, the mass percentage of the bamboo charcoal viscose fiber of the fabric of the pillow case is 30%, and the balance is the polyester fiber.
The inner side of the pillowslip is sewn and fixed with a cool gel sheet, and the cool gel sheet is prepared from the following raw materials in parts by weight: 55 parts of combined polyether polyol, 15 parts of high resilience polyether polyol, 10 parts of temperature-sensitive polyether, 8 parts of hydrophobic polyether polyol, 5 parts of antibacterial mildew preventive, 0.3 part of chain extender, 0.1 part of chain extension cross-linking agent, 0.9 part of weak catalyst, 0.5 part of foaming agent, 0.3 part of foam stabilizer, 15 parts of natural bamboo charcoal powder, 8 parts of cool additive and 45 parts of isocyanate;
wherein the combined polyether polyol comprises two mixtures of polymer polyol A with a hydroxyl value of 21mgKOH/g and polymer polyol B with a hydroxyl value of 26mgKOH/g, and the mass ratio of the polymer polyol A to the polymer polyol B is 1: 1; the hydroxyl value of the high resilience polyether polyol is 32mgKOH/g, and the acid value of the high resilience polyether polyol is 0.05 mgKOH/g; the weak catalyst is an environment-friendly organic zinc catalyst; the particle size of the natural bamboo charcoal powder is 50-120 nm.
Example 2: the difference between the cool bamboo charcoal memory foam throw pillow and the embodiment 1 is that the bamboo charcoal viscose fiber mass percentage content of the throw pillow case fabric is 35%, and the balance is polyester fiber. The cool gel sheet in the pillow cover is prepared from the following raw materials in parts by weight: 60 parts of combined polyether polyol, 18 parts of high resilience polyether polyol, 10.5 parts of temperature-sensitive polyether, 9 parts of hydrophobic polyether polyol, 5.5 parts of antibacterial mildew preventive, 0.4 part of chain extender, 0.2 part of chain extension cross-linking agent, 0.95 part of weak catalyst, 0.7 part of foaming agent, 0.4 part of foam stabilizer, 17 parts of natural bamboo charcoal powder, 9.5 parts of cooling additive and 47 parts of isocyanate;
wherein the combined polyether polyol comprises two mixtures of polymer polyol A with a hydroxyl value of 22mgKOH/g and polymer polyol B with a hydroxyl value of 27mgKOH/g, and the mass ratio of the polymer polyol A to the polymer polyol B is 1: 1; the hydroxyl value of the high resilience polyether polyol is 33mgKOH/g, and the acid value of the high resilience polyether polyol is 0.06 mgKOH/g; the weak catalyst is an environment-friendly organic zinc catalyst; the particle size of the natural bamboo charcoal powder is 50-120 nm.
Example 3: the difference between the cool bamboo charcoal memory foam throw pillow and the embodiment 1 is that the bamboo charcoal viscose fiber mass percentage content of the throw pillow case fabric is 40%, and the balance is polyester fiber. The cool gel sheet in the pillow cover is prepared from the following raw materials in parts by weight: 65 parts of combined polyether polyol, 22 parts of high resilience polyether polyol, 11 parts of temperature-sensitive polyether, 10 parts of hydrophobic polyether polyol, 6 parts of antibacterial mildew preventive, 0.5 part of chain extender, 0.3 part of chain extension cross-linking agent, 1.0 part of weak catalyst, 0.9 part of foaming agent, 0.5 part of foam stabilizer, 19 parts of natural bamboo charcoal powder, 11 parts of cool additive and 50 parts of isocyanate;
wherein the combined polyether polyol comprises two mixtures of polymer polyol A with a hydroxyl value of 23mgKOH/g and polymer polyol B with a hydroxyl value of 28mgKOH/g, and the mass ratio of the polymer polyol A to the polymer polyol B is 1: 1.5; the hydroxyl value of the high resilience polyether polyol is 34mgKOH/g, and the acid value of the high resilience polyether polyol is 0.07 mgKOH/g; the weak catalyst is an environment-friendly organic zinc catalyst; the particle size of the natural bamboo charcoal powder is 50-120 nm.
Example 4: the difference between the cool bamboo charcoal memory foam throw pillow and the embodiment 1 is that the bamboo charcoal viscose fiber mass percentage content of the throw pillow case fabric is 45%, and the balance is polyester fiber. The cool gel sheet in the pillow cover is prepared from the following raw materials in parts by weight: 70 parts of combined polyether polyol, 25 parts of high resilience polyether polyol, 11.5 parts of temperature-sensitive polyether, 11 parts of hydrophobic polyether polyol, 6.5 parts of antibacterial mildew preventive, 0.6 part of chain extender, 0.4 part of chain extending cross-linking agent, 1.1 parts of weak catalyst, 1.1 parts of foaming agent, 0.6 part of foam stabilizer, 22 parts of natural bamboo charcoal powder, 12.5 parts of cool additive and 53 parts of isocyanate;
wherein the combined polyether polyol comprises two mixtures of polymer polyol A with a hydroxyl value of 25mgKOH/g and polymer polyol B with a hydroxyl value of 29mgKOH/g, and the mass ratio of the polymer polyol A to the polymer polyol B is 1: 1.5; the hydroxyl value of the high resilience polyether polyol is 35mgKOH/g, and the acid value of the high resilience polyether polyol is 0.08 mgKOH/g; the weak catalyst is an environment-friendly organic zinc catalyst; the particle size of the natural bamboo charcoal powder is 50-120 nm.
Example 5: the difference between the cool bamboo charcoal memory foam throw pillow and the embodiment 1 is that the bamboo charcoal viscose fiber mass percentage content of the throw pillow case fabric is 50%, and the balance is polyester fiber. The cool gel sheet in the pillow cover is prepared from the following raw materials in parts by weight: 75 parts of combined polyether polyol, 30 parts of high resilience polyether polyol, 12 parts of temperature-sensitive polyether, 12 parts of hydrophobic polyether polyol, 7 parts of antibacterial mildew preventive, 0.7 part of chain extender, 0.4 part of chain extension cross-linking agent, 1.15 parts of weak catalyst, 1.3 parts of foaming agent, 0.7 part of foam stabilizer, 23 parts of natural bamboo charcoal powder, 14 parts of cool additive and 57 parts of isocyanate;
wherein the combined polyether polyol comprises two mixtures of polymer polyol A with a hydroxyl value of 26mgKOH/g and polymer polyol B with a hydroxyl value of 29mgKOH/g, and the mass ratio of the polymer polyol A to the polymer polyol B is 1: 2; the hydroxyl value of the high resilience polyether polyol is 36mgKOH/g, and the acid value of the high resilience polyether polyol is 0.09 mgKOH/g; the weak catalyst is an environment-friendly organic zinc catalyst; the particle size of the natural bamboo charcoal powder is 50-120 nm.
Example 6: a cool bamboo charcoal memory cotton pillow comprises a pillow case and a polyurethane memory cotton pillow core filled in the pillow case, wherein the fabric of the pillow case is a blended fabric of bamboo charcoal viscose fiber and polyester fiber, the mass percentage of the bamboo charcoal viscose fiber of the fabric of the pillow case is 50%, and the balance is the polyester fiber.
The inner side of the pillowslip is sewn and fixed with a cool gel sheet, and the cool gel sheet is prepared from the following raw materials in parts by weight: 80 parts of combined polyether polyol, 32 parts of high resilience polyether polyol, 12 parts of temperature-sensitive polyether, 12 parts of hydrophobic polyether polyol, 8 parts of antibacterial mildew preventive, 0.8 part of chain extender, 0.5 part of chain extension cross-linking agent, 1.2 parts of weak catalyst, 1.5 parts of foaming agent, 0.8 part of foam stabilizer, 25 parts of natural bamboo charcoal powder, 15 parts of cool additive and 60 parts of isocyanate;
wherein the combined polyether polyol comprises two mixtures of polymer polyol A with a hydroxyl value of 27mgKOH/g and polymer polyol B with a hydroxyl value of 30mgKOH/g, and the mass ratio of the polymer polyol A to the polymer polyol B is 1: 2; the hydroxyl value of the high resilience polyether polyol is 36mgKOH/g, and the acid value of the high resilience polyether polyol is 0.10 mgKOH/g; the weak catalyst is an environment-friendly organic zinc catalyst; the particle size of the natural bamboo charcoal powder is 120 nm.
Comparative example
Comparative example 1: the difference between the cool bamboo charcoal memory foam throw pillow and the cool gel sheet in the embodiment 3 is that the raw materials of the cool gel sheet do not contain high resilience polyether polyol.
Comparative example 2: a cool bamboo charcoal memory foam pillow, which is different from the embodiment 3 in that the raw material of the cool gel sheet does not contain temperature-sensing polyether.
Comparative example 3: a cool bamboo charcoal memory foam pillow, which is different from the embodiment 3 in that no cool additive is added in the raw materials of the cool gel sheet.
Comparative example 4: a cool and refreshing bamboo charcoal memory foam pillow is different from the pillow in example 3 in that a catalyst is triethylene diamine.
Comparative example 5: a cool bamboo charcoal memory foam pillow, which is different from the embodiment 3 in that natural bamboo charcoal powder is not added in the raw materials of the cool gel sheet.
Comparative example 6: a cool bamboo charcoal memory foam throw pillow is different from the pillow in the embodiment 3 in that the particle size of natural bamboo charcoal powder is 30-150 nm.
Comparative example 7: polyurethane memory foam sold on the market is purchased.
Product performance detection heat conductivity coefficient: the heat conductivity coefficient of the cooling gel sheet samples of 30cm × 30cm in examples 1-6 and comparative examples 1-7 was tested, and the specific test method was GB/T10294-.
Compressive strength: the samples of the cooling gel sheets of 30cm × 30cm size obtained in examples 1 to 6 and comparative examples 1 to 7 were subjected to a compression strength test by reference to GB/T8813-.
Antibacterial property: the cooling gel sheet samples with the size of 30cm multiplied by 30cm in examples 1-6 and comparative examples 1-7 are subjected to mildew and mite prevention performance tests, and the specific method refers to GB/T24253-20098 evaluation on the performance of textile mite prevention and GB/T24346-2009 evaluation on the performance of textile mildew prevention.
The results are shown in Table 1.
TABLE 1 results of Performance test of samples of examples 1-6 and comparative examples 1-7
As can be seen from Table 1, the thermal conductivity coefficients of examples 1-6 are obviously higher than those of comparative examples 1-7 and are close to 9 times, which shows that the polyurethane sample of the embodiment of the application has obvious advantages in thermal conductivity, and has better heat dissipation and cooling effects and experience when used in high-temperature weather in summer. The thermal conductivity of the comparative example 1 is only about one third of that of the embodiment of the application, which shows that the lack of high-resilience polyether polyol in the formula can reduce the thermal conductivity of the product and is not beneficial to heat dissipation of the product; in the comparative example 2, no temperature-sensitive polyether is added, so that the heat conductivity coefficient of the product is not obviously changed; the comparative example 3 is not added with the cool additive, and the heat conductivity coefficient of the sample is reduced rapidly, which shows that the cool additive added in the application has obvious promotion effect on improving the heat conductivity of the product and enhancing the cool characteristic of the product; the natural bamboo charcoal powder is not added in the comparative example 5, the heat conducting performance of the product is weakened to a certain extent, mainly because the natural bamboo charcoal powder has a porous structure and is beneficial to improving the air permeability and heat dissipation performance of the product, and therefore, the heat conducting performance of the product is weakened to a certain extent due to the lack of the natural bamboo charcoal powder; the thermal conductivity of comparative example 7 is in the range of normal thermal conductivity of polyurethane foam, and has a larger difference compared with the present application, and further shows that the material of the present application has the advantages of obvious thermal conductivity and cooling property.
It can also be seen from table 1 that the compressive strength of comparative example 1 is significantly lower than that of other samples, which indicates that the high resilience polyether polyol has significant enhancing and strengthening effects on the compressive strength of polyurethane foam; the compression strength of the comparative example 4 is obviously higher than that of other samples, so that the hardness of the product is higher, the use experience is influenced, the triethylene diamine catalyst is selected in the comparative example 4, the catalytic activity of the catalyst is obviously higher than that of the organic zinc catalyst used in the embodiment of the application, and the low-activity catalyst applied in the application can better control the reaction rate and the reaction process, so that the polymer has more proper structural performance.
Table 1 also shows that the antibacterial and anti-mite performance of examples 1-6 is significantly better than that of the commercial products, especially in terms of mold inhibition, which is a significant advantage of the present application.
The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.