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Phenolphthalein modified polyaryletherketone water-based sizing agent as well as preparation method and application thereof

A polyaryletherketone water-based, polyaryletherketone technology, applied in textiles and papermaking, fiber types, fiber processing and other directions, can solve the problems of non-compliance with the development requirements of green chemistry, safety threats to operators, easy decomposition, etc., and achieve good Dynamic stability, improved interfacial adhesion, good interfacial bonding effect

Pending Publication Date: 2021-10-29
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN 107022901 B discloses a composite water-based carbon fiber sizing agent and its preparation method and use method. Although the thermal decomposition temperature of the sizing agent can meet the processing temperature of PEEK, the epoxy resin present in the main slurry of the sizing agent It will have poor compatibility with the PEEK resin matrix, and the organic solvent contained in it will adversely affect the safety of operators and the development of the environment
Patent CN109930388 A discloses a method for preparing a modified polyether ether ketone resin-based sizing agent for carbon fibers. Although the sizing agent has good compatibility with PEEK resin and significantly improves the interfacial bonding between fibers and resins, the sizing agent The main component contains organic solvents, and its application cost will increase accordingly, and the application range may be limited to a certain extent
Patent CN 102926203B provides a sizing agent for emulsion type carbon fiber. The sizing agent has good compatibility with thermoplastic polycarbonate (PC) resin, and the interlaminar shear strength of the composite material has increased by more than 20%, but the sizing agent The main slurry contains epoxy resin, which is easy to decompose during high temperature processing and has poor heat resistance
Patent CN 112695531 A provides a composite high temperature resistant sizing agent for carbon fiber, its preparation method and application. The sizing agent can obviously improve the interface between carbon fiber and resin matrix and can increase the tensile strength of composite material, but its The main component of the sizing agent contains organic solvents, which will damage the operating equipment and pose a threat to the safety of operators, which does not meet the requirements of green chemical development

Method used

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  • Phenolphthalein modified polyaryletherketone water-based sizing agent as well as preparation method and application thereof
  • Phenolphthalein modified polyaryletherketone water-based sizing agent as well as preparation method and application thereof
  • Phenolphthalein modified polyaryletherketone water-based sizing agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Preparation of phenolphthalein-modified polyaryletherketone water-based sizing agent:

[0045] Under nitrogen atmosphere, 29.6g phenolphthalein (monomer A), 2.3g phenolphthalein (monomer B), 21.8g 4,4'-difluorobenzophenone, 16.5g anhydrous potassium carbonate, 100mL toluene and 150mL Dimethyl sulfoxide is mixed and stirred, then heated to 135°C for 4 hours, distilled toluene, then heated to 170°C for 5 hours, and then the above mixture is poured into a mixed solvent of deionized water and dilute hydrochloric acid to obtain White polymer solid, use a pulverizer to crush the polymer solid into fine powder, repeatedly boil and wash it with a mixed solvent of deionized water and dilute hydrochloric acid for 7 hours, and then dry it in a vacuum oven at 80°C to obtain phenolphthalein modified polyaryletherketone . The specific structural formula is as follows: where x+y=1, y=0.93,

[0046]

[0047] (2) 18g of the phenolphthalein-modified polyaryletherketone obtained ...

Embodiment 2

[0062] (1) Preparation of phenolphthalein-modified polyaryletherketone water-based sizing agent:

[0063] Under nitrogen atmosphere, 7.9g hydroquinone (monomer A), 9.0g phenolphthalein (monomer B), 21.8g 4,4'-difluorobenzophenone, 16.5g anhydrous potassium carbonate, 100mL Mix toluene and 150mL dimethyl sulfoxide and stir, then raise the temperature to 135°C for 4 hours, distill the toluene, then raise the temperature to 170°C for 5 hours, then pour the above mixture into a mixed solvent of deionized water and dilute hydrochloric acid In the process, a white polymer solid was obtained, and the polymer solid was crushed into fine powder with a pulverizer, and washed repeatedly with a mixed solvent of deionized water and dilute hydrochloric acid for 7 hours, and then dried in a vacuum oven at 80°C to obtain a phenolphthalein-modified polymer. Aryl ether ketone. The specific structural formula is as follows: wherein x+y=1, y=0.72,

[0064]

[0065] (2) 15g of the phenolphtha...

Embodiment 3

[0073] (1) Preparation of phenolphthalein-modified polyaryletherketone water-based sizing agent:

[0074]Under nitrogen atmosphere, 5.6g resorcinol (monomer A), 15.7g phenolphthalein (monomer B), 21.8g 4,4'-difluorobenzophenone, 16.5g anhydrous potassium carbonate, 100mL Mix toluene and 150mL dimethyl sulfoxide and stir, then raise the temperature to 135°C for 4 hours, distill the toluene, then raise the temperature to 170°C for 5 hours, then pour the above mixture into a mixed solvent of deionized water and dilute hydrochloric acid In the process, a white polymer solid was obtained, and the polymer solid was crushed into fine powder with a pulverizer, and washed repeatedly with a mixed solvent of deionized water and dilute hydrochloric acid for 7 hours, and then dried in a vacuum oven at 80°C to obtain a phenolphthalein-modified polymer. Aryl ether ketone. The concrete structural formula is as follows: wherein x+y=1, y=0.51,

[0075]

[0076] (2) 20g of the phenolphthale...

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Abstract

The invention provides a phenolphthalein modified polyaryletherketone water-based sizing agent as well as a preparation method and application thereof. The sizing agent is prepared from the following components in percentage by mass: 0.5 to 3 parts of phenolphthalein modified polyaryletherketone resin, 0.2 to 5 parts of a surfactant, 0.1 to 1 part of a flatting agent, 0.1 to 1 part of a lubricating agent, 0.1 to 1 part of a de-foaming agent, 0.1 to 2 parts of an adhesive, 0.2 to 1 part of an antistatic agent and 86 to 98.7 parts of de-ionized water. According to the principle of 'like dissolves like',the main slurry of the sizing agent provided by the invention is polyaryletherketone resin containing a distorted non-coplanar phenolphthalein structural unit with a carboxyl functional side group, so that excellent compatibility of the sizing agent and polyaryletherketone matrix resin can be ensured, and the sizing agent also has relatively good thermal stability. The water-based sizing agent is prepared through an emulsion solvent evaporation method, interface adhesion can be enhanced through diffusion and physical entanglement effects between the sizing agent and the matrix resin; and carboxyl contained in phenolphthalein can further form hydrogen bonds with ketone groups in the matrix resin, and interface adhesion between the sizing agent and the matrix resin is further improved.

Description

technical field [0001] The invention belongs to the technical field of sizing agents, and in particular relates to a phenolphthalein-modified polyaryletherketone water-based sizing agent and its preparation method and application. Background technique [0002] As a special engineering plastic, polyaryletherketone (PAEK) polymer has high heat resistance due to its special molecular structure-the main chain contains rigid, heat-resistant phenylene and flexible, heat-resistant oxygen ether bonds. , high strength, high rigidity, creep resistance, toughness and other outstanding characteristics. However, in some cutting-edge fields, the performance of PAEK alone will be limited. Due to its outstanding mechanical properties and good reinforcement effect, carbon fiber (CF) is usually used as a reinforcement to improve the performance of PAEK. Carbon fiber reinforced polyaryletherketone (CF / PAEK) composites are widely used because of their low density, high specific strength, and h...

Claims

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Application Information

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IPC IPC(8): C08G65/40D06M15/53C08J5/06C08L61/16C08L71/00D06M101/40
CPCC08G65/405C08G65/4043D06M15/53C08J5/06D06M2200/40D06M2101/40
Inventor 刘浏胡皎丽敖玉辉赵联双鄢飞刘宇尚垒杜巍峰
Owner CHANGCHUN UNIV OF TECH
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