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Novel process for directly melting fiber reinforced thermoplastic composite material

A composite material and fiber reinforced technology, applied in the new field of fiber reinforced thermoplastic composite material molding, can solve the problem of high production cost, achieve the effects of low production cost, reduced storage of ingredients, and easy reuse

Inactive Publication Date: 2009-02-25
SHANDONG GRAD GROUP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The invention overcomes the shortcomings of the existing molding process. The invention provides a new process of directly melting fiber reinforced thermoplastic composite materials to solve the problems of high production costs caused by the deficiencies of the existing technology

Method used

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Embodiment Construction

[0010] Below in conjunction with specific embodiment the present invention is described in further detail:

[0011] Taking the production of 1000kg thermoplastic composite material as an example, the proportion of raw material components is: polypropylene resin 60%, glass fiber 30%, silane coupling agent particles 2%, bismaimide 0.8%, ultraviolet absorber 0.1%, Antioxidant 1%, filler 8%; fiber-reinforced thermoplastic composite material direct melt impregnation and molding process combined process method, thermoplastic resin and ingredients are directly melted and then added to the mold for one-time molding. The specific process includes:

[0012] 1. Ingredients: First, according to the above ratio, dry 600kg of polypropylene resin, 300kg of glass fiber, 20kg of silane-type coupling agent particles, 8kg of bismaimide, 1kg of ultraviolet absorber, 10kg of antioxidant, and 80kg of filler according to a certain amount. Put into the reaction kettle after mixing in proportion;

[...

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Abstract

A new process for directly melting fiber-reinforced thermoplastic composite material relates to a new technology for forming the fiber-reinforced thermoplastic composite material. The technical proposal of the invention combines the process of directly melting and dipping the fiber-reinforced thermoplastic composite material with a molding process, and directly melts the thermoplastic resin and accessories and adds the molten materials to a mould for one-step molding. The proportions of the raw materials are as follows: 50-65% of acrylic resin, 28-35% of glass fiber, 0.5-2.0% of silicane coupling agent particles, 0.5-1% of bismaleimide, 0.05-0.1% of ultraviolet absorbent, 1-2% of antioxidant and 5-8% of packing. The specific process comprises batching, heating for soaking, press molding and demolding to obtain the blank of the fiber-reinforced thermoplastic composite material. The process has the advantages of forming by only one single heating process with low energy consumption; reducing intermediate links of batching storage, transport, preheating and the like, reduced energy consumption and manpower, lower production cost, high degree of batching freedom and small fiber attrition, and the process can more easily realize reuse of the recycled wastes.

Description

Technical field [0001] The invention relates to a new molding technology of fiber-reinforced thermoplastic composite material. Background technique [0002] The production process of common fiber-reinforced thermoplastic composite products generally goes through two processes of blank making and molding. This molding process not only requires storage and transportation of blanks, but also wastes manpower, material resources, energy and time, resulting in high production costs. Contents of the invention [0003] The invention overcomes the shortcomings of the existing molding process, and provides a new process of directly melting fiber reinforced thermoplastic composite materials to solve the problems of high production costs caused by the deficiencies of the prior art. [0004] The ratio of raw material components referred to in the technical solution of the present invention to solve the technical problem is: polypropylene resin 50-65%, glass fiber 28-35%, silane-type co...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K7/14B29C70/40B29C70/54C08K5/54C08K5/20
Inventor 管印贵姜恭俭吴喜清曲春光
Owner SHANDONG GRAD GROUP
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