High-CTI (Comparative Tracking Index) anti-flaming PA (Polyamide) for photovoltaic material and preparation method thereof
A technology of flame retardant polyamide and photovoltaic materials, applied in the polymer field, can solve the problems of less research on PA/LLDPE alloys, and achieve the effects of saving strategic resources, good electrical properties, and improving fluidity and weather resistance
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[0044] (1) Treatment of raw materials: PA resin is baked at 110°C for 4 hours, and the moisture content is controlled to be less than 0.1%; PA resin, PE resin and all additives except glass fiber are placed in a high-mixer in proportion, Stir at high speed for 3 to 5 minutes to fully mix the components;
[0045] (2) Melt extrusion: Put the mixed materials into the twin-screw extruder, and at the same time melt and extrude, introduce the alkali-free glass fiber into the glass fiber port. During the melt extrusion, the screw temperature is: 230℃ in the first zone , Zone two 250℃, zone three 245℃, zone four 240℃, zone five 235℃, zone six 240℃, zone seven 245℃, zone eight 250℃, die head 260℃, screw speed is 340 rpm;
[0046] (3) Granulation and post-processing: the extruded materials are cooled, air-dried, pelletized, and magnetized to obtain finished products.
[0047] Table 1 shows the weight percentage of each component in Examples 1-6:
[0048]
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