A kind of preparation method of glass fiber reinforced thermoplastic resin composite material

A resin composite material and enhanced thermoplastic technology, applied in the field of plastic manufacturing, can solve the problems of uneven length distribution and short length of glass fiber, and achieve the effect of uniform distribution and increased strength
CN110682520BActive Publication Date: 2021-10-22合聚高分子材料科技(广东)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
合聚高分子材料科技(广东)有限公司
Publication Date
2021-10-22
Patent Text Reader

Abstract

The invention discloses a method for preparing a glass fiber reinforced thermoplastic resin composite material. By selecting a screw with a higher aspect ratio (the aspect ratio of the screw is in the range of 48:1 to 56:1), and by setting the glass fiber on both sides The glass fiber is fed into the feeding port, and the distribution of the shear strength of the special screw shearing element can improve the length of the glass fiber distributed in the resin more uniformly, and the retention length is longer.
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Description

technical field

[0001] The invention relates to the field of plastic manufacturing, in particular to a method for preparing a glass fiber reinforced thermoplastic resin composite material. Background technique

[0002] High-content glass fiber reinforced thermoplastic composites have the advantages of high strength and high modulus. For example, reinforced PA with a glass fiber content of 50-70% has been used more and more in automotive lightweight and IT parts. Due to the high glass fiber content, the existing twin-screw melt blending preparation method (40:1 aspect ratio, single-side feeding mode, screw combination form with screw shearing elements mainly at 60 degrees and 90 degrees) has glass fiber Difficulty in fiber dispersion, infiltration and dispersion, inability to give full play to the effect of glass fiber reinforcement, and serious floating fibers on the surface of the material.

[0003] Generally, even if a high aspect ratio (such as 48:1) and multiple feeding...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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