Thermoplastic resin base carbon fiber composite material, and its manufacturing method and apparatus

Abstract

This invention is about a kind of sheet material of thermoplastic resin continuous carbon fiber composite and its method of making and equipment and refers to the stiffening sheet material of architecture. The resin matrix is thermoplastic resin. The preparation method can be divided into 2 steps: first step is to make the thermoplastic preliminary dip cincture, add tensility to the carbon fiber to make it into pieces, extract thermoplastic resin and spread it on the carbon fiber, then infuse, roll and press it, tow and wrapup after natural cooling. Second step is pultrude thermoplastic molding: get the turnoff after the preliminary dip cincture got from first step passes through the procedures of warm-up, hot pressing, molding, cooling, rolling and draught. This invention improves the dynamic resistance, tenacity and specific elongation of the turnoff and is a kind of green environment-protecting material which can be broken down and disposed.

Description

Technical field: [0001] The invention relates to building reinforcement materials, in particular to sheets of carbon fiber structure reinforcement reinforcement materials. Background technique: [0002] Resin-based composite material is a new material with extremely broad uses and prospects. The resin matrix is ​​divided into thermosetting and thermoplastic, and the molding methods and product properties of the corresponding composite materials are also different. Although thermosetting resin-based composite materials are easy to form and have good mechanical properties such as strength and modulus, they are widely used at present, but they have high brittleness, brittle fracture under extreme stress, low elongation, and cannot be reused. The insoluble waste will bring pollution and other defects to the environment. Carbon fiber structural reinforcement materials are collectively referred to as sheets, and the carbon fiber sheets currently used are all thermosetting resin-...

AI Technical Summary

Problems solved by technology

However, high-performance thermoplastic resins have a high melting point and high viscosity (tens of times that of thermosetting resins), and it is difficult to impregnate reinforcing fibers during the molding process. This fatal shortcoming has long restricted the development of thermoplastic composite materials.

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