Fire-retarding reinforced polyamide PA6 materialTechnical field
The invention belongs to nylon PA6 material produce technology, improve the deficiency of original material, produce the material meeting social needs.
Background technology
Polymeric amide (PA6) engineering plastics have excellent mechanical property and electrical property, also have the advantages such as wear-resisting, oil resistant, self-lubricating, corrosion-resistant and good processing characteristics; Its purposes is also more and more extensive, and range of application comprises automobile, mechanical means, electronic apparatus, chemical industry equipment, building, daily necessities, communications and transportation etc.Because polymeric amide is more and more applied in the charged Working environment such as car electrics, power tool, the situations such as electric leakage, short circuit, electric arc, electrical spark cause the danger of fire very big.Therefore flame-retardant modified being inevitable is carried out to polymeric amide.
Summary of the invention
The object of this invention is to provide a kind of mechanical property not affecting material, improve the deficiency of material.Described fire-retarding reinforced polyamide PA6 material, is made up of following weight ratio raw material:
Polymeric amide PA6 raw material: 50 ~ 70
Decabromodiphenyl oxide: 7.0 ~ 9.0
Antimonous oxide: 4.0 ~ 6.0
Glass fibre: 20 ~ 30
Dispersed lubricant: 1.0 ~ 3.0
Silane coupling agent: 1.0 ~ 3.0
Compatilizer: 1.0 ~ 3.0.
Dispersed lubricant described in the present invention is TAS-2A, and described silane coupling agent is KH-550.
The preparation method of described fire-retarding reinforced polyamide PA6 material is: above-mentioned various raw material is dry mixed 15-20 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 160-180 DEG C, and 2nd district are 230-250 DEG C, and 3rd district are 255-275 DEG C, and 4th district are 250-270 DEG C; 5th district are 230-250 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Embodiment
Embodiment 1
(1) raw material is taken by following weight ratio:
Polymeric amide PA6 raw material: 50 ~
Decabromodiphenyl oxide: 7.0
Antimonous oxide: 4.0
Glass fibre: 20
Dispersed lubricant: 1.0
Silane coupling agent: 1.0
Compatilizer: 1.0.
(2) above-mentioned various raw material is dry mixed 15-20 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 160-180 DEG C, and 2nd district are 230-250 DEG C, and 3rd district are 255-275 DEG C, and 4th district are 250-270 DEG C; 5th district are 230-250 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Experimental result
| Characteristic parameter | Testing standard | Performance index | Test data |
| 1 tensile strength MPa | ASTM/D638 | / | 90 |
| 2 elongation at break % | ASTM/D638 | / | 6.0 |
| 3 flexural strength MPa | ASTM/D790 | / | 110.0 |
| 4 modulus in flexure MPa | ASTM/D790 | / | 4100.0 |
| 5 is fire-retardant | UL-94 | / | V0 |
| 6 Izod notched impact strength J/m | ASTM/D256 | / | 110.0 |
Embodiment 2
(1) raw material is taken by following weight ratio:
Polymeric amide PA6 raw material: 60
Decabromodiphenyl oxide: 8.0
Antimonous oxide: 5.0
Glass fibre: 25
Dispersed lubricant: 2.0
Silane coupling agent (KH-550): 2.0
Compatilizer: 2.0.
(2) above-mentioned various raw material is dry mixed 15-20 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 160-180 DEG C, and 2nd district are 230-250 DEG C, and 3rd district are 255-275 DEG C, and 4th district are 250-270 DEG C; 5th district are 230-250 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Experimental result
| Characteristic parameter | Testing standard | Performance index | Test data |
| 1 tensile strength MPa | ASTM/D638 | / | 95 |
| 2 elongation at break % | ASTM/D638 | / | 6.5 |
| 3 flexural strength MPa | ASTM/D790 | / | 150.0 |
| 4 modulus in flexure MPa | ASTM/D790 | / | 4500.0 |
| 5 is fire-retardant | UL-94 | / | V0 |
| 6 Izod notched impact strength J/m | ASTM/D256 | / | 140.0 |
Embodiment 3
(1) raw material is taken by following weight ratio:
Polymeric amide PA6 raw material: 70
Decabromodiphenyl oxide: 9.0
Antimonous oxide: 6.0
Glass fibre: 30
Dispersed lubricant: 3.0
Silane coupling agent: 3.0
Compatilizer: 3.0.
(2) above-mentioned various raw material is dry mixed 15-20 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 160-180 DEG C, and 2nd district are 230-250 DEG C, and 3rd district are 255-275 DEG C, and 4th district are 250-270 DEG C; 5th district are 230-250 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Experimental result
| Characteristic parameter | Testing standard | Performance index | Test data |
| 1 tensile strength MPa | ASTM/D638 | / | 94 |
| 2 elongation at break % | ASTM/D638 | / | 6.4 |
| 3 flexural strength MPa | ASTM/D790 | / | 140.0 |
| 4 modulus in flexure MPa | ASTM/D790 | / | 4400.0 |
| 5 is fire-retardant | UL-94 | / | V0 |
| 6 Izod notched impact strength J/m | ASTM/D256 | / | 130.0 |