Automotive resin composition and its preparation method
A resin composition and composition technology, applied in the field of automotive thermoplastic resin composition and its preparation, resin composition and its preparation, can solve the problems of high elastomer price, affecting the heat resistance and rigidity of the composition, and achieve Excellent heat resistance and rigidity, ease of chain breakage, and low cost
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Embodiment 1
[0029] In parts by weight, 70 parts of polypropylene, 30 parts of polystyrene, AlCl 3 0.1 part and 0.5 part of styrene monomer are placed in a single-screw extruder to prepare a masterbatch of a graft copolymer of polypropylene and polystyrene, the reaction temperature is controlled at 160-240° C., and the screw speed is 20-50 rev / min. The diameter of the screw of the single-screw extruder is 25 mm, and the ratio of length to diameter is 25, and nitrogen protection is set at the hopper of the extruder. In terms of parts by weight, 40 parts of polypropylene, 10 parts of polystyrene and 50 parts of the above-mentioned masterbatch are placed in a single-screw extruder, the processing temperature is controlled at 160-240 °C, and the screw speed is 20-50 rev / min. That is the graft copolymer of polypropylene and polystyrene.
Embodiment 2
[0031] In parts by weight, 70 parts of polyethylene, 30 parts of polystyrene, AlCl 3 0.1 part and 0.5 part of styrene monomer are placed in a single-screw extruder to prepare a masterbatch of a graft copolymer of polyethylene and polystyrene, and the reaction temperature is controlled at 160-240° C., and the screw speed is 20-50 rev / min. The diameter of the screw of the single-screw extruder is 25 mm, and the ratio of length to diameter is 25, and nitrogen protection is set at the hopper of the extruder. In terms of parts by weight, put 40 parts of polyethylene, 10 parts of polystyrene and 50 parts of the above-mentioned masterbatch into a single-screw extruder, control the processing temperature at 160-240 ° C, and the screw speed at 20-50 rev / min, That is, a graft copolymer of polyethylene and polystyrene is obtained.
Embodiment 3
[0034] Prepare raw materials according to the following components and parts by weight:
[0035]
[0036] in
[0037] The polyphenylene ether resin is poly(2,6-dimethyl-1,4-phenylene) ether;
[0038] The polyolefin resin is polypropylene;
[0039] The graft copolymer of polyalkenyl aromatic resin and polyolefin is polystyrene-g-polypropylene;
[0040] The impact modifier is SEBS;
[0041] The additive is an antioxidant.
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