Preparation method of resin based fiber reinforced composite
A fiber-reinforced and composite material technology, applied in the field of composite materials, can solve the problems of zipper position bursting, loss, and irreparability, and achieve the effects of easy manufacturing, simple process, high toughness and tensile performance
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[0012] A method for preparing a resin-based fiber-reinforced composite material, comprising the following components in parts by weight: 25 parts of polystyrene, 15 parts of polyphenylene ether, 38 parts of wollastonite powder, 65 parts of reinforcing fiber, and 3 parts of toughening agent part, 5 parts of blowing agent, 0.3 part of polydimethylsiloxane, 0.5 part of silane coupling agent, 3 parts of curing agent, 0.5 part of antioxidant, and its preparation steps are as follows:
[0013] a) Stir the components of polystyrene, polyphenylene ether, wollastonite powder, toughening agent and antioxidant evenly;
[0014] b) Raise the temperature to 120°C-150°C and add foaming agent, silane coupling agent and curing agent in sequence for mixing for 25-40 minutes to obtain a semi-solid mixed molten slurry;
[0015] c) Coat the static mold with a layer of liquid polydimethylsiloxane, and inject the semi-solid mixed magma into the static mold;
[0016] d) Lay the reinforcing fibers on...
Embodiment 1
[0018] Example 1: A method for preparing a resin-based fiber-reinforced composite material, comprising the following components in parts by weight: 25 parts of polystyrene, 15 parts of polyphenylene ether, 38 parts of wollastonite powder, 65 parts of reinforcing fiber, 3 parts of toughening agent, 5 parts of foaming agent, 0.3 part of polydimethylsiloxane, 0.5 part of silane coupling agent, 3 parts of curing agent, 0.5 part of antioxidant, its preparation steps are as follows:
[0019] a) Put the polystyrene, polyphenylene ether, wollastonite powder, silane coupling agent, foaming agent, toughening agent and antioxidant of each component into the twin-screw mixer and mix them fully Evenly, the temperature is controlled in the range of 90°C-130°C, and the time is 25-40min;
[0020] b) Add curing agent and dimethyl siloxane and mix for 3-5 minutes to obtain a semi-solid mixed melt;
[0021] c) Lay the reinforcing fiber in the form of a net on the semi-solid mixed magma, and rep...
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