Glass fiber reinforced halogen-free flame-retardant PA6 (Poly Amide 6)/PS (Poly Styrene) alloy material and preparation method thereof
An alloy material and glass fiber technology is applied in the field of glass fiber reinforced halogen-free flame retardant PA6/PS alloy material and its preparation, and achieves the effects of smooth surface, good alloy compatibility and good surface finish.
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Embodiment 1
[0034] Embodiment 1 and comparative example 1
[0035] The flame retardant is a halogen-free flame retardant with a molar mass ratio of 4:1, the flame retardant synergist is pentaerythritol, the compatibilizer is acrylonitrile-butadiene-styrene grafted maleic anhydride copolymer, and the coupling agent It is 3-triethoxysilyl-1-propylamine, the antioxidant is a compound of antioxidant 1098 and antioxidant 168 with a weight ratio of 1:1, the lubricant is zinc stearate, glass fiber It is alkali-free glass fiber. Weigh each raw material according to the following parts by weight, and bake PA6 at 100°C for 3 hours:
[0036] Example 1: 30 parts of PA6, 13 parts of PS, 13 parts of flame retardant, 3 parts of flame retardant synergist, 8 parts of compatibilizer, 0.3 part of coupling agent, 0.3 part of antioxidant, 0.3 part of lubricant, 30 parts of glass fiber share.
Embodiment 2 and comparative example 2
[0040] The flame retardant is a halogen-free flame retardant with a molar mass ratio of 4:1, the flame retardant synergist is pentaerythritol, the compatibilizer is acrylonitrile-butadiene-styrene grafted maleic anhydride copolymer, and the coupling agent It is 3-triethoxysilyl-1-propylamine, the antioxidant is a compound of antioxidant 1098 and antioxidant 168 with a weight ratio of 1:1, the lubricant is zinc stearate, glass fiber It is alkali-free glass fiber. Weigh each raw material according to the following parts by weight, and bake PA6 at 100°C for 3 hours:
Embodiment 2
[0041] Example 2: 20 parts of PA6, 15 parts of PS, 20 parts of flame retardant, 4 parts of flame retardant synergist, 8 parts of compatibilizer, 0.3 part of coupling agent, 0.3 part of antioxidant, 0.3 part of lubricant, 30 parts of glass fiber share.
[0042] Comparative example 2: 44 parts of PA6, 15 parts of PS, 8 parts of compatibilizer, 0.3 part of coupling agent, 0.3 part of antioxidant, 0.3 part of lubricant, and 30 parts of glass fiber.
[0043]The specific preparation method is: put other raw materials except glass fiber into a high-efficiency mixer and mix for 10 minutes, and then discharge; put the obtained premix and glass fiber into a twin-screw machine for extrusion and water-cooled granulation, twin-screw The rotating speed of the machine is 200 rpm, and the temperature is 235-255°C.
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