Thermoplastic resin composition
A thermoplastic resin and composition technology, applied in the field of thermoplastic resin composition, can solve the problems of low bending strength, low impact strength, low tensile strength of ABS resin, etc., and achieve the effect of improving mechanical properties
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Embodiment 1～9 and comparative example 1～2
[0021] Mix the dried SANMA resin, ABS high rubber powder, and antioxidant 1010 in a container according to the mass ratio in Table 1, and then add them to the hopper of the twin-screw extruder for later use. The barrel temperature of the twin-screw extruder (Germany Leistritz company, screw diameter 27 mm, length-to-diameter ratio 36: 1) is controlled at 200-230°C (gradually warming up from the feeding port to the head), and the screw speed is 120 rpm. Extrude the above-mentioned material at a speed of about 10 kg / hour, cool with water, and cut into pellets to obtain the product. Comparative Example SAN resin was used instead of SANMA resin.
[0022] Dry the above product in a hot air oven at 85°C for 3 hours and then inject it into a standard sample with a plastic injection molding machine. The injection temperature is 230-240°C, the injection pressure is 8MPa, and the molding cycle is 52 seconds. After the injection-molded samples were placed in the test environment for 24 ...
Embodiment 10～15 and comparative example 3～4
[0034] Mix the dried SANMA resin, ABS high-grade rubber powder, and antioxidant 1010 in a container according to the mass ratio in Table 1, and then add them to the hopper of the twin-screw extruder for later use. The barrel temperature of the twin-screw extruder is controlled at 210-240°C (the temperature gradually rises from the feeding port to the machine head), and the continuous alkali-free glass fiber treated with the silane coupling agent is introduced from the middle opening of the twin-screw extruder. The rotation speed is 120 rpm, and the above-mentioned materials are extruded at a speed of about 12 kg / hour, cooled by water, and pelletized to obtain glass fiber reinforced products. Comparative example SANMA resin was replaced by SAN resin+ABS high rubber powder or commercially available ABS resin.
[0035] Dry the above products in a hot air oven at 85°C for 3 hours and then inject them into standard samples with a plastic injection molding machine. The injection tem...
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