Method for producing automobile valve cover or oil pan by using fiber reinforced modified polypropylene composite material
A technology of fiber reinforcement, production method, applied in the field of production of valve cover covers (oil pans)
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Embodiment 1
[0053] Example 1: Production of Fiber Reinforced Modified Polypropylene Valve Cover for Automobiles
[0054] The implementation steps of this embodiment are as follows:
[0055] A. Production of fiber reinforced modified polypropylene blocks
[0056] Let the glass fiber reinforced modified polypropylene pellets be dried at a temperature of 95°C for 3.0 hours, then add the dried pellets into the barrel of an extruder sold by Coperion (Nanjing) Machinery Co., Ltd. The weight ratio of propylene pellets, polystyrene, toughening agent and compatibilizer is 100:18:20:6, add polystyrene, EPR toughening agent and acrylic acid compatibilizer into the barrel and mix well, then Add glass fiber and mix well, then turn on the extruder and carry out extrusion molding under the following temperature conditions:
[0057] The temperature control of the first barrel: 160℃ The temperature control of the second barrel: 255℃ The temperature control of the third barrel: ...
Embodiment 2
[0065] Example 2: Production of Fiber Reinforced Modified Polypropylene Valve Cover for Automobiles
[0066] The implementation steps of this embodiment are as follows:
[0067] A. Production of fiber reinforced modified polypropylene blocks
[0068] Let the polyester fiber-reinforced modified polypropylene pellets be dried at a temperature of 80°C for 4.0 hours, then add the dried pellets into the barrel of an extruder sold by Coperion (Nanjing) Machinery Co., Ltd. The weight ratio of propylene pellets, polystyrene, toughening agent and compatibilizer is 100:16:18:3, and polystyrene, EPDM toughening agent and maleic anhydride compatibilizer are added into the barrel, and then Add surface oxidation treatment carbon fiber and mix evenly, and described surface oxidation treatment carbon fiber adopts following method to obtain: carbon fiber is made of 15% KClO by weight 3 with 40%H 2 SO 4 In the liquid-phase oxidation treatment solution composed of an aqueous solution, the su...
Embodiment 3
[0075] Example 3: Production of fiber-reinforced modified polypropylene oil pan for automobiles
[0076] The implementation steps of this embodiment are as follows:
[0077] A. Production of fiber reinforced modified polypropylene blocks
[0078] Let the nylon fiber reinforced modified polypropylene pellets be dried at a temperature of 120°C for 1.0h, then add the dried pellets to the barrel of the injection molding machine sold by Ningbo Haitian Plastic Machinery Group Co., Ltd., and then press the polypropylene pellets , the weight ratio of polystyrene, toughening agent and compatibilizer is 100:25:16:4, add polystyrene, SBS toughening agent and maleimide compatibilizer in described barrel, then add The polyester fiber material is mixed evenly, and the amount of the polyester fiber material is 28% of the total weight of polypropylene pellets, polystyrene, SBS toughening agent, maleimide compatibilizer and polyester fiber material; then open the injection molding machine In...
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