A kind of emulsion type carbon fiber sizing agent containing nano material and its preparation method

An emulsion-type carbon fiber and nano-material technology, which is applied in the fields of carbon fiber, fiber treatment, textiles and papermaking, etc., can solve the problems that organic solvents hinder the practical application of sizing agents, cannot give full play to the reinforcing effect of carbon fibers, and are prone to agglomeration and precipitation, etc., to achieve Excellent dispersibility and stability, improve surface free energy, and improve surface roughness

Active Publication Date: 2016-01-20
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention mainly aims at the problem that the existing polyarylether resin containing phthalazinone-biphenyl structure is used as the solvent-based sizing agent as the main sizing agent, and the use of a large amount of organic solvents hinders the actual application of the sizing agent in industrial production. problems; and the existing method of adding nanomaterials in the sizing agent, the obtained nanocomponents have poor dispersion and are prone to problems of agglomeration and precipitation; more importantly, for a series of emerging phthalazinone-containing biphenyls The interfacial bonding strength between structural polyarylether resin and carbon fiber is low, and the reinforcement effect of carbon fiber cannot be fully exerted in composite materials

Method used

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  • A kind of emulsion type carbon fiber sizing agent containing nano material and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Weigh 0.1 g of polyarylethersulfone resin containing phthalazinone biphenyl structure in the main slurry, and nano-SiO with an average diameter of 50 nm. 2 0.01g, AEO-7 emulsifier 0.05g, NTX101 dispersant 0.05g, organic solvent dimethyl sulfoxide 0.15g and deionized water 99.64g. Add nanomaterials and dispersants into deionized water together, control the system temperature at 40°C, and ultrasonically disperse for 10 minutes to obtain a stable dispersion of nanomaterials in deionized water; then, dissolve the main slurry in an organic solvent, and then add Emulsifier, control the temperature of the main slurry solution to 50°C, and pass through the emulsifier at a speed of 12,000rpm, and stir at a high speed for 5 minutes; then, the stable dispersion of nanomaterials in deionized water is kept at a constant speed of the emulsifier Under conditions, add it into the main slurry solution, and continue to stir at a high speed for 60 minutes to obtain an emulsion-type carbon...

Embodiment 2

[0038] Weigh 2 g of polyarylethersulfone resin containing phthalazinone biphenyl structure in the main slurry, and nano-SiO with an average diameter of 10 nm. 2 1g, 2g of EL-40 emulsifier, 0.1g of NTX101 dispersant, 8g of organic solvent dimethyl sulfoxide and 86.9g of deionized water. Add nanomaterials and dispersants into deionized water together, control the system temperature at 50°C, and ultrasonically disperse for 15 minutes to prepare a stable dispersion of nanomaterials in deionized water; then, dissolve the main slurry in an organic solvent, and then add Emulsifier, control the temperature of the main slurry solution to 55°C, and pass through the emulsifier at a speed of 16000rpm, and stir at a high speed for 6 minutes; then, the stable dispersion of nanomaterials in deionized water is kept at a constant speed of the emulsifier Under certain conditions, add it to the main slurry solution, and continue to stir at a high speed for 70 minutes to obtain an emulsion-type c...

Embodiment 3

[0040] Weigh 2 g of polyaryl ether sulfone resin containing phthalazinone biphenyl structure in the main slurry, and nano-SiO with an average diameter of 30 nm. 2 0.01g, OP-10 emulsifier 1g, NTX105 dispersant 0.05g, organic solvent dimethyl sulfoxide 8g and deionized water 88.94g. Add nanomaterials and dispersants into deionized water together, control the system temperature at 60°C, and ultrasonically disperse for 20 minutes to prepare a stable dispersion of nanomaterials in deionized water; then, dissolve the main slurry in an organic solvent, and then add Emulsifier, control the temperature of the main slurry solution to 60°C, and pass through the emulsifier at a speed of 22,000rpm, and stir at a high speed for 7 minutes; then, the stable dispersion of nanomaterials in deionized water is kept at a constant speed of the emulsifier Under certain conditions, add it to the main slurry solution, and continue to stir at a high speed for 80 minutes to obtain an emulsion carbon fib...

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Abstract

The invention discloses an emulsion type carbon fiber sizing agent containing a nano material. The sizing agent comprises the following components in percentage by mass: 0.1-2% of a main sizing agent, 0.01-1% of a nano material, 0.05-2% of an emulsion agent, 0.05-0.1% of a dispersing agent, 0.15-8% of an organic solvent and 86.9-99.64% of deionized water. The sizing agent has the advantages the interface binding strength with carbon fibers is high and the surface free energy of the sized carbon fibers is no less than 55mN / m.

Description

technical field [0001] The invention belongs to the technical field of carbon fiber sizing agents, in particular to an emulsion-type carbon fiber sizing agent containing nanomaterials and a preparation method thereof. technical background [0002] In recent years, a series of new polyaryl ether resins containing phthalazinone-biphenyl structure have been developed to solve the problem that the temperature resistance and solubility of traditional polyarylether resins have an inverse relationship. When this type of resin is used as a composite material matrix, carbon fibers with excellent mechanical properties are often used as reinforcements. In order to give full play to the reinforcing effect of carbon fibers, obtaining high-quality interfacial bonding between resins and fibers becomes the key. [0003] The interface between carbon fiber and matrix resin is a transition layer mainly formed by carbon fiber surface sizing agent, so the compatibility between carbon fiber surfa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/63D06M15/53D06M11/79D06M11/74D06M101/40
Inventor 吕春祥张寿春原浩杰
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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