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Aqueous carbon fiber sizing agent and preparation method thereof

A carbon fiber, hydrophilic emulsifier technology, applied in the direction of carbon fiber, fiber treatment, improved hand fiber, etc., can solve the problems of epoxy resin emulsion performance limitation, high production equipment requirements, long synthesis cycle and so on

Active Publication Date: 2021-10-22
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The carbon fiber sizing agent prepared by the chemical synthesis method has the advantages of high storage stability and excellent performance; the disadvantages are: the synthesis cycle is long, the requirements for production equipment are high, and the reaction process requires the use of highly toxic catalysts, which is environmentally friendly sexual problems unresolved
Therefore, the performance of the externally emulsified epoxy resin emulsion is limited, and it can only be compensated by adding other types of emulsions, such as synthetic polyurethane emulsions.

Method used

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  • Aqueous carbon fiber sizing agent and preparation method thereof
  • Aqueous carbon fiber sizing agent and preparation method thereof
  • Aqueous carbon fiber sizing agent and preparation method thereof

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Embodiment approach

[0078] According to a typical embodiment of the present invention, a water-based carbon fiber sizing agent is provided. This water-based carbon fiber sizing agent is made of the following components by weight:

[0079]

[0080] The water-based carbon fiber sizing agent of the present invention is a water-based carbon fiber sizing agent combined by heat curing and light curing. The carbon fiber after the sizing can be dried by high-temperature heat drying, and then cured by light curing, so that the carbon fiber The performance of the sizing agent is further improved; the combination of thermal curing and light curing provided by the present invention improves the production efficiency of the carbon fiber sizing agent, enhances the clustering of the fiber bundles, and is not easy to shed crumbs during the weaving process, and can be combined with the ring Perfect combination with epoxy resin prepreg.

[0081] Preferably, the epoxy resin is added in an amount of 22 to 30 par...

Embodiment 1

[0121] The carbon fiber sizing agent of this embodiment is made by the following components (table 4) by weight after curing and photocuring:

[0122] Table 4

[0123]

[0124]

[0125] The preparation method is as follows:

[0126]Add 24 parts of 0161 (E-54) (Bluestar Nantong Xingchen Synthetic Materials), 6 parts of 1703 (Double Bond Chemical Co., Ltd.), and 1 part of propylene glycol methyl ether solvent into a mixing bucket with a condenser. Raise the temperature to 80°C, stir and disperse for 1 hour, and the stirring speed is 800r / min, so that the epoxy resin is mixed evenly. Then, under the condition of uniform stirring, slowly add 8 parts of BOM-25 into the above epoxy resin system to make it uniformly dispersed in the epoxy resin, stirring time is 1 hour, stirring speed is 1000r / min. Then, lower the temperature to 70°C, add 0.35 parts of wetting and dispersing agent ANTI-TERRA-250 to make it evenly dispersed in the system. Then, lower the temperature to 65° C....

Embodiment 2

[0128] The carbon fiber sizing agent of this embodiment is made by the following components (Table 5) by weight after curing and photocuring:

[0129] table 5

[0130]

[0131]

[0132] The preparation method is as follows:

[0133] Add 24 parts of WSR618 (E-51) (Bluestar Nantong Xingchen Synthetic Materials) and 0.7 parts of oleic acid amide into a mixing tank with a condenser, raise the temperature to 150°C, stir for 1 hour, and the stirring speed is 600r / min . Reduce the temperature of the system to 80°C, add 4 parts of 1636 (Double Bond Chemical Co., Ltd.) and 1 part of propylene glycol methyl ether solvent, stir and disperse for 1 hour, and the stirring speed is 800r / min, so that the epoxy resin is mixed evenly. Then, lower the temperature to 70°C, and slowly add 8.65 parts of BOM-25 to the above epoxy resin system under uniform stirring to make it evenly dispersed in the epoxy resin. The stirring time is 1 hour and the stirring speed is 1000r / min. . Then, lower...

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Abstract

The invention discloses a water-based carbon fiber sizing agent and a preparation method thereof. The water-based carbon fiber sizing agent is made of the following components in parts by weight: 16-32 parts by weight of epoxy resin, 4-8 parts by weight of epoxy acrylate; 2-15 parts by weight of hydrophilic emulsifier; water-based polyurethane emulsion 0-20 parts by weight; 0-10 parts by weight of water-based polyurethane acrylate; 0-5 parts by weight of higher fatty acid amide; 0.01-3 parts by weight of photoinitiator; 0.05-5 parts by weight of water-based wetting and dispersing agent; 5 parts by weight; 0.2-5 parts by weight of solvent; 30-70 parts by weight of deionized water. The water-based carbon fiber sizing agent of the present invention is a water-based carbon fiber sizing agent combined by heat curing and light curing. The carbon fiber after the sizing can be dried by high-temperature heat drying, and then cured by light curing, so that the carbon fiber The performance of the sizing agent is further improved.

Description

technical field [0001] The invention relates to the technical field of carbon fiber sizing agents, in particular to a water-based carbon fiber sizing agent and a preparation method thereof. Background technique [0002] At present, sizing agents play an extremely important role in the application of high-performance carbon fiber and fiber-reinforced resin composites. After sizing treatment on the surface of carbon fiber, it can improve the properties of carbon fiber such as clustering, smoothness, wear resistance and processability, and meet the requirements of carbon fiber in subsequent manufacturing processes such as weaving and processing. [0003] The sizing agents used in the existing market are mainly divided into two categories: oily sizing agents and water-based sizing agents. As the country's requirements for environmental protection are getting higher and higher, the proportion of water-based sizing agents in the market is getting higher and higher. The water-bas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/55D06M13/224D06M15/564D06M13/402D06M101/40
CPCD06M13/2246D06M13/402D06M15/55D06M15/564D06M2101/40D06M2200/50
Inventor 王友东王海龙丁清华
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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