Carbon fiber emulsion sizing agent improved by carbon nano tube and preparation method of carbon fiber emulsion sizing agent

A carbon nanotube modification and carbon nanotube technology, which is applied in the fields of carbon fiber, fiber treatment, textiles and papermaking, etc., can solve the problems of difficulty in uniform dispersion and small size, and achieve simple preparation method, high production efficiency and good effect Effect
CN102212967AInactive Publication Date: 2011-10-12DONGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DONGHUA UNIV
Publication Date
2011-10-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a carbon fiber emulsion sizing agent improved by a carbon nano tube and a preparation method of the carbon fiber emulsion sizing agent. The carbon fiber emulsion sizing agent comprises a carbon fiber sizing agent, the carbon nano tube, a dispersing agent and a solvent. The preparation method comprises the following steps of: 1, preparing the carbon fiber sizing agent; and 2, adding the carbon fiber sizing agent into the solvent to prepare a sizing working solution, mixing the carbon nano tube and the sizing working solution, performing ultrasonic treatment for 1 to 4 hours at the power of 300 to 600w, adding the dispersing agent, and performing ultrasonic dispersion for 2 to 4 hours to obtain the carbon fiber emulsion sizing agent improved by the carbon nano tube. The carbon fiber emulsion sizing agent has favorable stability, the post processability of carbon fiber can be improved after being processed by the emulsion sizing agent, the interfacial bond strength between the carbon fiber and substrate resin can be enhanced, the shear strength among layers is enhanced, and the performance of a composite material is improved to a certain extent. Moreover, the preparation method is simple, low in cost and environment-friendly.
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Description

technical field

[0001] The invention belongs to the field of carbon fiber functional emulsion sizing agents, in particular to a carbon nanotube-modified carbon fiber emulsion sizing agent and a preparation method thereof. Background technique

[0002] Carbon fibers are widely used as reinforcing materials for thermosetting and thermoplastic matrix composites due to their excellent properties such as high specific strength, high specific modulus, corrosion resistance and high temperature resistance. In the production process of carbon fiber, due to the different process conditions, there are certain differences in the microscopic morphology of the fiber surface, which will inevitably affect the performance of the fiber and its composite materials. On the one hand, the existence of grooves on the fiber surface will help to improve the interfacial bonding between the fiber and the resin, that is, it will help to improve the interfacial performance of the composite material; but...

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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