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Nanosheet-layer tungsten disulfide reinforced carbon fiber sizing agent and preparation method thereof

A technology of tungsten disulfide and nanosheets, applied in the direction of carbon fiber, fiber type, fiber treatment, etc., to achieve the effect of improving wear resistance

Inactive Publication Date: 2016-08-10
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a compatible modified nanosheet tungsten disulfide reinforced sizing agent and its preparation method to solve the problem of interfacial performance between carbon fiber and matrix

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  • Nanosheet-layer tungsten disulfide reinforced carbon fiber sizing agent and preparation method thereof
  • Nanosheet-layer tungsten disulfide reinforced carbon fiber sizing agent and preparation method thereof
  • Nanosheet-layer tungsten disulfide reinforced carbon fiber sizing agent and preparation method thereof

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preparation example Construction

[0033] The compatible modified nanosheet tungsten disulfide described in the present invention refers to the modified nanosheet formed by grafting polyacrylic acid in situ on the surface of the stripped nanosheet tungsten disulfide by an ammonium persulfate initiator Tungsten disulfide is added in the form of dispersion liquid in the sizing agent, and the dispersion liquid preparation method comprises the following steps:

[0034] 1) Prepare a mixed solution of isopropanol and water first, wherein the volume percentage of isopropanol in the mixed solution is 30%-70%, and then add tungsten disulfide with a size less than 100 microns to form a tungsten disulfide concentration of 10mg / mL dispersion;

[0035] 2) Ultrasonic the dispersion liquid obtained in step 1), after standing still, centrifuge to obtain the upper layer dispersion liquid;

[0036] 3) The dispersion obtained in step 2) is subjected to polyacrylic acid modification treatment: acrylic acid and ammonium persulfate...

Embodiment 1

[0046] Step (1): At 70°C, disperse 1000 grams of epoxy resin (brand 634) in 1500 grams of N-methylpyrrolidone to form an organic resin solution;

[0047] Step (2): After the resin solution is down to room temperature, mix 10 grams of surfactant Solulan 25, 5 grams of polyethylene glycol 1000 and 500 grams of deionized water into the organic resin solution, and use a dispersing emulsifier to shear to Phase transfer occurs in the mixing system, and the rotation speed of the dispersing emulsifier is 19000 rpm; after continuing to shear for 60 minutes, add deionized water until the solid content of the mixing system is 35%, and an organic resin emulsion is obtained;

[0048] Step (3): Slowly add 6 grams of the compatible modified nanosheet tungsten disulfide dispersion into the organic resin emulsion, and disperse it ultrasonically for 1 hour with a power of 600W, then continue to add deionized water, and dilute the mixed system to a solid content of 30% to prepare a compatible mo...

Embodiment 2

[0050] Step (1): at 70 DEG C, 1000 grams of epoxy resin (brand 618) is dispersed in 1200 grams of acetone to form an organic resin solution;

[0051] Step (2): After the resin solution drops to room temperature, mix 10 grams of Solulan97, 6 grams of KH570 and 500 grams of deionized water and add them into the organic resin solution, and use a dispersing emulsifier to shear until the mixed system undergoes phase transfer and disperse The rotation speed of the emulsifier is 17000rpm; after continuing to shear for 60 minutes, add deionized water until the solid content of the mixed system is 35%, and an organic resin emulsion is obtained;

[0052] Step (3): Slowly add 8 grams of the compatible modified nanosheet tungsten disulfide dispersion into the organic resin emulsion, and disperse it ultrasonically for 1 hour with a power of 500W, then continue to add deionized water, and dilute the mixed system to a solid content of 28%, to prepare compatible modified nanosheet tungsten di...

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Abstract

The invention relates to a nanosheet-layer tungsten disulfide reinforced carbon fiber sizing agent and a preparation method thereof. The sizing agent is a mixed system consisting of organic resin, an emulsifier, a dispersing agent, nanosheet-layer tungsten disulfide, an organic solvent and deionized water, wherein the organic solvent accounts for 20-200% of the organic resin, the emulsifier accounts for 1-5% of the organic resin, the dispersing agent accounts for 0.1-1% of the organic resin, and the nanosheet-layer tungsten disulfide accounts for 0.05-0.8% of the organic resin all by mass; and the solid content of the obtained mixed system is 25-35%. According to the sizing agent provided by the invention, by adding the nanosheet-layer tungsten disulfide, the wear resistance of the carbon fiber composite material is remarkably improved, the interfacial properties are optimized, and the sizing agent is of important significance to the industrial upgrading of the carbon fiber composite material.

Description

technical field [0001] The invention belongs to the technical field of composite materials, in particular to a compatible modified nanosheet tungsten disulfide reinforced sizing agent and a preparation method thereof. Background technique [0002] Carbon fiber is known as a new type of inorganic material, which has a series of excellent properties such as high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, radiation resistance, electrical conductivity, heat transfer, shock absorption, and noise reduction. , is regarded as a typical high-performance fiber. Carbon fiber is widely used as a reinforcing fiber for advanced resin-based composite materials. At present, its application field is mainly in aerospace, mainly because it can greatly reduce the weight of structural prefabricated parts and further improve technical performance. At the same time, the application in the fields of industry and civilian product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/56D06M15/55C08F292/00C08F220/06D06M101/40
CPCC08F292/00D06M11/56D06M15/55D06M2101/40D06M2200/40C08F220/06
Inventor 叶明新沈剑锋李娜
Owner FUDAN UNIV
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