Weather-resistant and flame-retardant PC/PBT alloy and preparation method thereof
A weather-resistant and alloy technology, applied in the field of engineering plastics, can solve the problems of thermal degradation, poor aging resistance, decreased flame retardant properties of materials, and failure to meet fire safety requirements, achieving good processing fluidity, improving efficiency, The effect of low internal stress
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Embodiment 1
[0040] Silicone modified polycarbonate 35;
[0041] Polybutylene terephthalate 22;
[0042] Compatibilizer 7;
[0043] Flame retardant 8;
[0044] Flame retardant auxiliary 1;
[0045] Anti-dripping agent 0.5;
[0046] transesterification inhibitor 2;
[0047] Antioxidant 0.5;
[0048] Liquid lubricant 0.3;
[0049] UV absorber 0.2;
[0050] a. Weigh silicone-modified polycarbonate, polybutylene terephthalate and liquid lubricant according to the weight ratio, and add them into a high-speed mixer and mix evenly;
[0051] b. Then add the solubilizer, flame retardant, flame retardant auxiliary agent, anti-dripping agent, transesterification inhibitor, antioxidant, and ultraviolet light absorber weighed by weight, and stir together for 3-10 minutes to achieve mixing After uniformity, the material is discharged;
[0052] c. Put the mixed material obtained in the previous step into a co-rotating twin-screw extruder, melt extrude, cool and granulate to obtain the weather-re...
Embodiment 2
[0054] Silicone modified polycarbonate 40;
[0055] Polybutylene terephthalate 30;
[0056] Compatibilizer 10;
[0057] Flame retardant 10;
[0058] Flame retardant auxiliary agent 2;
[0059] Anti-dripping agent 0.8;
[0060] transesterification inhibitor 2;
[0061] Antioxidant 0.5;
[0062] Liquid lubricant 0.5;
[0063] UV absorber 0.4;
[0064] a. Weigh silicone-modified polycarbonate, polybutylene terephthalate and liquid lubricant according to the weight ratio, and add them into a high-speed mixer and mix evenly;
[0065] b. Then add the solubilizer, flame retardant, flame retardant auxiliary agent, anti-dripping agent, transesterification inhibitor, antioxidant, and ultraviolet light absorber weighed by weight, and stir together for 3-10 minutes to achieve mixing After uniformity, the material is discharged;
[0066] c. Put the mixed material obtained in the previous step into a co-rotating twin-screw extruder, melt extrude, cool and granulate to obtain the we...
Embodiment 3
[0068] Silicone modified polycarbonate 50;
[0069] Polybutylene terephthalate 35;
[0070] Compatibilizer 12;
[0071] Flame retardant 11;
[0072] Flame retardant auxiliary agent 2;
[0073] Anti-dripping agent 0.8;
[0074] transesterification inhibitor 2.2;
[0075] Antioxidant 0.6;
[0076] Liquid lubricant 0.5;
[0077] UV absorber 0.3;
[0078] a. Weigh silicone-modified polycarbonate, polybutylene terephthalate and liquid lubricant according to the weight ratio, and add them into a high-speed mixer and mix evenly;
[0079] b. Then add the solubilizer, flame retardant, flame retardant auxiliary agent, anti-dripping agent, transesterification inhibitor, antioxidant, and ultraviolet light absorber weighed by weight, and stir together for 3-10 minutes to achieve mixing After uniformity, the material is discharged;
[0080] c. Put the mixed material obtained in the previous step into a co-rotating twin-screw extruder, melt extrude, cool and granulate to obtain the ...
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