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Aqueous amino-modified polyaryletherketone sizing agent and preparation method thereof

A technology of amino modification and polyarylether ketone, which is applied in fiber types, textiles and papermaking, fiber treatment, etc. It can solve the problems affecting interface performance, etc., and achieve the effect of improving interface performance, easy operation, and enhancing interface bonding strength

Inactive Publication Date: 2020-07-31
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the sizing agent will leave part of the epoxy group, and the decomposition temperature of the epoxy group is lower than the PEEK processing temperature, so that the epoxy group will decompose at the interface during processing, thus affecting the interface performance

Method used

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  • Aqueous amino-modified polyaryletherketone sizing agent and preparation method thereof
  • Aqueous amino-modified polyaryletherketone sizing agent and preparation method thereof
  • Aqueous amino-modified polyaryletherketone sizing agent and preparation method thereof

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preparation example Construction

[0063] The present invention also provides a preparation method of a water-based amino-modified polyaryletherketone sizing agent, comprising:

[0064] (1) Dissolving the amino-modified polyaryletherketone resin in a solvent, the solvent being preferably chloroform, fully stirring to completely dissolve it to form a uniform solution;

[0065] (2) Add the surfactant into the deionized water, stir well, then add the solution in step (1) into it, and mix evenly; use ultrasonic shearing treatment, and keep the solution temperature at 10-40°C to obtain a mixed solution; the ultrasonic shear treatment time is preferably 2 to 20 minutes, and the power is preferably 100 to 1000W;

[0066] (3) Add leveling agent, lubricant, adhesive and antistatic agent to the mixed solution in step (2), stir evenly, and then use distillation or rotary evaporation to recover the organic solvent to obtain water-based amino-modified polyaryletherketone Sizing agent.

[0067] According to the present inv...

Embodiment 1

[0071] (1) Preparation of amino-modified polyaryletherketone:

[0072] First, 9.3g of 2-phenylhydroquinone (monomer A), 10g of 4-aminophenylhydroquinone (monomer B), 21.8g of 4,4'-difluorobenzophenone, 16.5g of Potassium carbonate water, 150mL toluene and 130mL sulfolane were added to a 1000mL three-neck flask, mechanically stirred under a nitrogen atmosphere, heated to 140°C and carried out with water for 4 hours. After the completion of carrying water, the toluene in the three-necked flask was discharged, and then the temperature was raised to 180° C. to react for 10 hours. When the reactant became viscous, it was poured into deionized water to obtain a solid polymer. Then crush the solid polymer with a pulverizer, repeatedly boil and wash it with deionized water for 8 hours, change the water every 1 hour, and finally put it in a vacuum oven and dry it to constant weight at 80°C to obtain the amino-modified polyaryletherketone polymer material, wherein the amino content is ...

Embodiment 2

[0083] (1) The monomer A used in the preparation of amino-modified polyaryletherketone in this example is 6.2 g of 2-methylhydroquinone, and the others are the same as in Example 1. The specific structural formula is as follows:

[0084]

[0085] (2) Dissolve 18g of the synthesized amino-modified polyaryletherketone polymer in chloroform, stir fully to make it completely dissolve, and form a uniform solution;

[0086] (3) Add 12g of sodium lauryl sulfate to 953mL of deionized water, stir well, then add the solution in step (2) into it, and mix evenly; use ultrasonic shearing treatment for 8min, the power is 400W, and make the solution The temperature was maintained at 20°C.

[0087] (4) Add 3g hydroxymethyl cellulose, 5g butyl stearate, 1g polyacrylamide and 8g polyethylene oxide to the mixed solution of step (3), stir evenly, then adopt distillation or rotary evaporation to reclaim the organic solvent, namely A water-based amino-modified polyaryletherketone sizing agent ...

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Abstract

The invention provides an aqueous amino-modified polyaryletherketone sizing agent and a preparation method thereof, belonging to the technical field of sizing agents. The sizing agent comprises the following components according to parts by weight: 0.5 to 3 parts of amino-modified polyaryletherketone resin, 0.2 to 5 parts of surfactant, 0.1 to 1 part of leveling agent, 0.1 to 1 part of lubricant,0.1 to 2 parts of adhesive, 0.2 to 1 part of antistatic agent, and 87-98.8 parts of deionized water. The amino-containing polyaryletherketone is used as the main sizing agent, the problem of compatibility between the sizing agent and the polyaryletherketone matrix resin is effectively solved according to the principle of ''similarity and intermiscibility'', and therefore, the sizing agent has relatively good thermal stability; the regularity of an original polyaryletherketone molecular chain segment is reduced through the introduction of benzene rings in a polymer molecular chain, so that theamino-modified polyaryletherketone can be dissolved in a part of organic solvents, and finally, the aqueous sizing agent is prepared by an emulsion solvent volatilization method; and meanwhile amino can chemically interact with ketonic bonds in the polyaryletherketone resin to generate imines, and thus, the interface bonding between carbon fibers and the resin can be further improved.

Description

technical field [0001] The invention belongs to the technical field of sizing agents, and in particular relates to a water-based amino-modified polyaryletherketone sizing agent and a preparation method thereof. Background technique [0002] Carbon fiber reinforced polyaryletherketone (CF / PAEK) composites are widely used in automobile manufacturing, aerospace, military defense and other fields due to their low density, high specific strength and high thermal stability. However, the surface of carbon fiber is smooth and inert, which makes it difficult to achieve good infiltration and bonding with PAEK resin matrix, resulting in poor interfacial properties of CF / PAEK composites. In addition, carbon fiber itself has the characteristics of low elongation at break and high brittleness. During the manufacturing process, fluffing and fracture are prone to occur, resulting in a decrease in the strength of carbon fiber. [0003] The sizing method is a common means to solve the above ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/53D06M15/263D06M13/224D06M15/09D06M15/59D06M15/285C08J5/06C08L71/10D06M101/40
CPCD06M15/53D06M15/263D06M13/224D06M15/09D06M15/59D06M15/285C08J5/06D06M2101/40D06M2200/40C08J2371/10
Inventor 刘浏鄢飞敖玉辉庄海林颜天文尚垒杜巍峰马岩
Owner CHANGCHUN UNIV OF TECH
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