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A kind of carbon fiber silk and preparation method thereof

A technology of carbon fiber filaments and equipment, applied in the field of fiber products, to achieve the effects of rapid curing, improved strength, and simplified construction methods

Active Publication Date: 2020-07-31
FOSHAN YIKEJU NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The first technical problem to be solved by the present invention is to provide a method for preparing carbon fiber filaments, which simplifies the process and storage conditions, and the obtained carbon fiber filaments can be stored at room temperature, and will not solidify after long-term storage. Solve the low temperature storage problem of traditional epoxy resin as prepreg

Method used

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  • A kind of carbon fiber silk and preparation method thereof
  • A kind of carbon fiber silk and preparation method thereof
  • A kind of carbon fiber silk and preparation method thereof

Examples

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preparation example Construction

[0045] Such as figure 1 Shown, the preparation method of carbon fiber silk, comprises:

[0046] S101 , pretreating and heating the raw filaments to obtain a carbon fiber primary product at a temperature of 50-160° C.

[0047] The present invention adopts electrostatic spraying to make the powder coating adhere to the surface of the carbon fiber filaments, and the raw filaments need to be pretreated and heated to obtain the carbon fiber filament primary product at a temperature of 50-160°C.

[0048]There are many ways to implement the pretreatment. Specifically, as a preferred embodiment, the step (1) includes: sequentially carrying out unwinding, pre-oxidation, low-temperature carbonization, high-temperature carbonization and surface treatment on the raw silk to obtain the preliminary carbon fiber filament ;Drying the finished carbon fiber filaments to heat the carbon fiber filaments to 50-160°C. The surface treatment is mainly to clean the high-temperature carbonized carbon...

Embodiment 1

[0078] (1) Carrying out wire laying, pre-oxidation, low-temperature carbonization, and high-temperature carbonization on the raw silk in sequence, cleaning the carbon fibers that have been carbonized at high temperature, and removing the electrolyte on the surface;

[0079] (2) The carbon fiber filaments are heated to 100°C through an infrared oven or oven produced by catalytic cracking of natural gas;

[0080] (3) After drying and heating / preheating, the carbon fiber filaments enter the spray booth, spray the colored polyester powder coating with an average particle size of 1 μm on the surface of the carbon fiber filaments with a spray gun, and control the sprayed film thickness to 2 μm, the powder Under the action of static electricity, the coating is adsorbed on the surface of the carbon fiber filament at 100°C, and the powder coating is softened; wherein, the powder coating is polyester powder coating;

[0081] (4) The sprayed carbon fiber filaments enter the infrared oven...

Embodiment 2

[0084] (1) Carrying out wire laying, pre-oxidation, low-temperature carbonization, and high-temperature carbonization on the raw silk in sequence, cleaning the carbon fibers that have been carbonized at high temperature, and removing the electrolyte on the surface;

[0085] (2) The carbon fiber filaments are heated to 100°C through an infrared oven or oven produced by catalytic cracking of natural gas;

[0086] (3) After drying and heating / preheating, the carbon fiber filament enters the spray booth, sprays a transparent polyester powder coating with an average particle size of 2 μm on the surface of the carbon fiber filament with a spray gun, and controls the sprayed film thickness to 3 μm, the powder coating Under the action of static electricity, it is adsorbed on the surface of carbon fiber filaments at 100°C, and the powder coating is softened; wherein, the powder coating is a polyester-epoxy hybrid powder coating;

[0087] (4) The sprayed carbon fiber filaments enter the i...

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Abstract

The invention discloses a preparation method of carbon fiber filaments. The preparation method includes the steps of firstly, preprocessing and heating protofilaments to obtain a carbon fiber primaryproduct with the temperature being 50-160 DEG C; secondly, coating the surface of the carbon fiber primary product with powdered paint through electrostatic coating, and heating to complete curing orsemi-curing, wherein the powdered paint is thermosetting powdered paint, curing temperature is 70-200 DEG C, and average particle size is 1-20 micrometers; thirdly, cooling the cured or semi-cured powder paint, and collecting and winding to obtain the carbon fiber filaments. Correspondingly, the invention further provides the carbon fiber filaments prepared by the preparation method. By the preparation method, the process is simplified, storage conditions are simplified, the carbon fiber filaments can be stored at room temperature and can be stored for a long time without curing, rich and diversified in appearance color and stable in performance.

Description

technical field [0001] The invention relates to the technical field of fiber products, in particular to a carbon fiber filament and a preparation method thereof. Background technique [0002] Carbon fiber refers to high-strength and high-modulus fibers with a carbon content of more than 90%. High temperature resistance ranks first among all chemical fibers. Carbon fiber is made of acrylic fiber and viscose fiber, which is oxidized and carbonized at high temperature. It is an excellent material for manufacturing high-tech equipment such as aerospace and aviation. [0003] The production process of carbon fiber mainly includes two processes of raw silk production and carbonization: the raw silk production process mainly includes processes such as polymerization, defoaming, metering, spinning, drawing, washing, oiling, drying and collecting. The carbonization process mainly includes the processes of unwinding, pre-oxidation, low-temperature carbonization, high-temperature car...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F11/14D06M15/507D06M15/55D06M15/263D06M101/40
CPCD01F11/14D06M15/263D06M15/507D06M15/55D06M2101/40D06M2200/35
Inventor 伍明
Owner FOSHAN YIKEJU NEW MATERIAL CO LTD