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A method for preparing thermoplastic carbon fiber flat shrapnel by extrusion

A thermoplastic carbon fiber and carbon fiber technology, applied in the field of materials, can solve problems such as low lateral strength, achieve high production efficiency, improve lateral mechanical properties, and improve elasticity.

Active Publication Date: 2018-03-27
GUANGDONG YATAI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Some patents disclose pultruded glass fiber or carbon fiber composite solid round rods, hollow round tubes and flat belts, etc. Most of the fibers are arranged in the direction of 0 degrees, which has the defect of low transverse strength

Method used

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  • A method for preparing thermoplastic carbon fiber flat shrapnel by extrusion
  • A method for preparing thermoplastic carbon fiber flat shrapnel by extrusion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Step 1: Lead the continuous carbon fiber from the creel, the carbon fiber is soaked by the molten thermoplastic polyurethane resin through the size tank under isotensive state, and combine several bundles of carbon fiber into a bundle to form the carbon fiber core 3;

[0020] Step 2: The glass fiber fabric with a width of 15 mm is impregnated with molten thermoplastic polyurethane resin through the slurry tank, and then wound on the carbon fiber core obliquely from the side, thereby obtaining the carbon fiber core covered with the glass fiber fabric layer 2;

[0021] Step 3: After the carbon fiber used for the outer layer is infiltrated with molten thermoplastic polyurethane at 80-110°C, it is collected into the mouth of the flat mold through a circular bell mouth collector, and the carbon fiber core covered with a glass fiber fabric layer is also collected into the flat mold mouth;

[0022] Step 4: Coat the carbon fiber used for the outer layer on the carbon fiber core...

Embodiment 2

[0027] Step 1: Lead the continuous carbon fiber from the creel, the carbon fiber is soaked by the molten thermoplastic polyurethane resin through the size tank under isotensive state, and combine several bundles of carbon fiber into a bundle to form the carbon fiber core 3;

[0028] Step 2: The glass fiber fabric with a width of 20 mm is impregnated with molten thermoplastic polyurethane resin through the slurry tank, and then wound on the carbon fiber core obliquely from the side, thereby obtaining the carbon fiber core covered with the glass fiber fabric layer 2;

[0029] Step 3: After the carbon fiber used for the outer layer is infiltrated with molten polyurethane at 80-110°C, it is collected into the flat mold mouth through a circular bell mouth collector, and the carbon fiber core covered with a glass fiber fabric layer is also collected into the flat mold mouth;

[0030] Step 4: Coat the carbon fiber used for the outer layer on the carbon fiber core covered with the glas...

Embodiment 3

[0035] Step 1: Lead the continuous carbon fiber from the creel, the carbon fiber is soaked by the molten thermoplastic polyurethane resin through the size tank under isotensive state, and combine several bundles of carbon fiber into a bundle to form the carbon fiber core 3;

[0036] Step 2: The glass fiber fabric with a width of 20 mm is impregnated with molten thermoplastic polyurethane resin through the slurry tank, and then wound on the carbon fiber core obliquely from the side, thereby obtaining the carbon fiber core covered with the glass fiber fabric layer 2;

[0037] Step 3: After the carbon fiber used for the outer layer is infiltrated with molten polyurethane at 80-110°C, it is collected into the flat mold mouth through a circular bell mouth collector, and the carbon fiber core covered with a glass fiber fabric layer is also collected into the flat mold mouth;

[0038] Step 4: Coat the carbon fiber used for the outer layer on the carbon fiber core covered with the glas...

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Abstract

The invention discloses a method for preparing a thermoplastic carbon fiber flat clip through an extrusion drawing method. The method comprises the steps that 1, continuous carbon fibers are led out from a creel, the carbon fibers pass through a stock tank in the equal-tension state and are soaked with fused thermoplastic polyurethane resin, and the multiple carbon fibers are combined into a bundle of carbon fibers to form a carbon fiber core; 2, fiberglass cloth passes through the stock tank, is soaked with the fused thermoplastic polyurethane resin and then is wound on the carbon fiber core obliquely from the side face, and thus the carbon fiber core wrapped with a fiberglass cloth layer is obtained; and 3, after carbon fibers used for an outer layer is soaked with the fused thermoplastic polyurethane resin, the carbon fiber core wrapped with the fiberglass cloth layer is wrapped with the carbon fibers through a flat mold, and thus the thermoplastic carbon fiber flat clip is formed. By the adoption of the method, the transverse mechanical properties can be effectively improved, moreover, the material cost can be reduced, and finally the composite material clip with certain comprehensive performance is formed.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a method for preparing thermoplastic carbon fiber flat shrapnel by an extrusion method. Background technique: [0002] The stainless steel shrapnel inside the wiper has excellent mechanical properties and high brightness. The amount of such materials is increasing, especially in SUV models. However, the manufacturing process of stainless steel shrapnel is complex, with many processes, and the production process has pollutant emissions. At the same time, stainless steel has a limited service life and is not resistant to salt spray corrosion. [0003] The flat shrapnel made of carbon fiber thermoplastic resin composite material has the characteristics of waterproof, salt spray resistance, and non-corrosion. It can be used as a support in the car wiper, and it can also be used for parts that require frequent elastic work. It can completely replace the existing stainless steel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/52B29K307/04B29L7/00
CPCB29C70/521B29C70/525B29K2307/04B29L2007/002
Inventor 朱增余杨朝坤罗国伟白文风黄润根
Owner GUANGDONG YATAI NEW MATERIAL TECH CO LTD
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