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Preparation method of carbon fiber resin-based composite material for umbrella ribs

A technology of carbon fiber resin base and composite materials, which is applied in the fields of fiber chemical characteristics, chemical post-treatment of rayon, textiles and papermaking, etc. It can solve the problems of weak cohesion, difficulty in preparing umbrella ribs with mechanical properties, etc., and achieve the effect of low cost

Pending Publication Date: 2022-04-01
福建优安纳伞业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, in view of the above content, the present invention provides a method for preparing a carbon fiber resin-based composite material for umbrella ribs, which solves the problem that the existing carbon fiber and resin interface has weak adhesion and it is difficult to prepare umbrella ribs with excellent mechanical properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for preparing a carbon fiber resin-based composite material for umbrella ribs, comprising the following steps:

[0037]S1. Add deionized water, acrylonitrile, methyl acrylate and methacrylic acid into the reaction device, stir and mix evenly, add sodium ascorbate and ammonium persulfate, and carry out polymerization reaction under nitrogen atmosphere. The reaction temperature is 56 ° C, and the reaction time is After the reaction is completed, pour the obtained product into deionized water to terminate the polymerization reaction, filter under reduced pressure and wash with water several times, and dry after filtering to obtain a polyacrylonitrile-based copolymer;

[0038] Taking acrylonitrile as 100 parts by mass, the consumption of methyl acrylate is 2.5 parts, the consumption of methacrylic acid is 1 part, the consumption of deionized water is 300 parts, the consumption of sodium ascorbate is 0.2 parts, and the consumption of ammonium persulfate is 0.2 copie...

Embodiment 2

[0053] A method for preparing a carbon fiber resin-based composite material for umbrella ribs, comprising the following steps:

[0054] S1. Add deionized water, acrylonitrile, ethyl acrylate and acrylic acid into the reaction device, stir and mix evenly, then add 1,3-propylenediamine and ammonium persulfate, carry out polymerization reaction under nitrogen atmosphere, the reaction temperature is 58°C , the reaction time is 5h, after the reaction is completed, the obtained product is poured into deionized water to terminate the polymerization reaction, filtered under reduced pressure and washed with water for several times, dried after filtering, to obtain a polyacrylonitrile-based copolymer;

[0055] Based on 100 parts by mass of acrylonitrile, the amount of ethyl acrylate is 3.5 parts, the amount of acrylic acid is 0.8 parts, the amount of deionized water is 350 parts, the amount of 1,3-propylenediamine is 0.3 parts, ammonium persulfate The dosage is 0.4 parts;

[0056] S2, ...

Embodiment 3

[0070] A method for preparing a carbon fiber resin-based composite material for umbrella ribs, comprising the following steps:

[0071] S1. Add deionized water, acrylonitrile, methyl methacrylate and itaconic acid into the reaction device, stir and mix evenly, add 1,3-propylenediamine and potassium persulfate, and carry out polymerization reaction under nitrogen atmosphere. The temperature is 60°C, and the reaction time is 4 hours. After the reaction is completed, the obtained product is poured into deionized water to terminate the polymerization reaction, filtered under reduced pressure and washed with water several times, and dried after filtration to obtain a polyacrylonitrile-based copolymer;

[0072] Based on 100 parts by mass of acrylonitrile, the amount of methyl methacrylate is 4.5 parts, the amount of itaconic acid is 1.2 parts, the amount of deionized water is 400 parts, and the amount of 1,3-propylenediamine is 0.4 parts , the consumption of potassium persulfate is ...

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Abstract

The invention relates to the technical field of composite materials, and provides a preparation method of a carbon fiber resin-based composite material for umbrella ribs, and the preparation method comprises the following steps: S1, preparing a polyacrylonitrile-based copolymer; s2, preparation of a polyacrylonitrile-based precursor; s3, carrying out dipping treatment on the polyacrylonitrile-based precursor in an ethanol solution of phthalic acid for 30 to 60 minutes; s4, carrying out pre-oxidation treatment; s5, carrying out carbonization treatment; s6, carrying out acidification treatment for 3-5 hours; s7, carbon fiber surface modification; and S8, compression molding. According to the invention, the application of the carbon fiber resin-based composite material on the umbrella rib is realized, and the problems that the existing carbon fiber and resin interface bonding property is weak, and a product with excellent mechanical properties is difficult to prepare are solved.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a preparation method of a carbon fiber resin-based composite material for umbrella ribs. Background technique [0002] With the development of science and technology, umbrellas are constantly being introduced, from oil-paper umbrellas in the old days to umbrellas of all kinds and varieties. Umbrella ribs are an important structure of umbrellas. According to the material, they can be divided into resin ribs, aluminum alloy ribs, iron ribs, and glass fiber ribs. The iron frame is hard and not easy to break, and has good wind resistance, but it is easy to rust after a long time; the aluminum alloy frame and resin frame are relatively light and portable, but they are easy to bend and break when encountering strong wind or other external forces. Fiberglass umbrella ribs have the advantages of good insulation, strong heat resistance, good corrosion resistance, ...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K9/06C08K9/04C08K7/06D01F11/14D01F9/22
Inventor 周迎迎王翔鹏丁海波黄学良丁敬堂
Owner 福建优安纳伞业科技有限公司
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