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Glass fiber stranded twistless rough yarn impregnating compound, and preparation method, product and application thereof

A technology of roving and glass fiber, which is applied in the field of sizing agent and preparation of glass fiber plied roving

Pending Publication Date: 2020-02-21
JUSHI GRP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the field of thermosetting pultrusion and winding, the current market demand is mainly based on direct yarn, but in special fields, such as food storage tanks, trolley suitcases, tent poles, etc., according to the permeability of the product, the surface finish of the product, mechanical properties, The special requirements of toughness and other aspects cannot be met by direct yarn products, and fine diameter and large number of plied yarns must be used as reinforcing materials

Method used

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  • Glass fiber stranded twistless rough yarn impregnating compound, and preparation method, product and application thereof
  • Glass fiber stranded twistless rough yarn impregnating compound, and preparation method, product and application thereof
  • Glass fiber stranded twistless rough yarn impregnating compound, and preparation method, product and application thereof

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Experimental program
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Effect test

preparation example Construction

[0055] The preparation method of the glass fiber plied roving sizing agent comprises the following steps:

[0056] 1S: Add 40% to 50% of the total amount of water in the container, and then add the pH adjuster. After stirring for 3 to 5 minutes, slowly add the first coupling agent. After stirring for 20 to 30 minutes, slowly Add the second coupling agent and continue stirring for 20-30 minutes until the first coupling agent and the second coupling agent are uniformly dispersed; wherein, slowly adding the coupling agent helps the coupling agent to be uniformly dispersed, while preventing the When the coupling agent is added quickly, splashing occurs, generally at a rate of 100-200 g / s;

[0057] 2S: Dissolve the lubricant in 5 to 10 times its amount of water at 40 to 50°C, stir and dilute it, and add it to the container; dissolve the antistatic agent in 5 to 10 times its amount of water at 80 to 90°C, stir Add to the container after dilution;

[0058] 3S: Dilute the first film...

Embodiment

[0062] Each component of the wetting agent used in the embodiment of the present invention is as follows:

[0063] Coupling agent:

[0064] Methyl propyl acyloxy trimethoxy silane coupling agent, product name is A-174; or

[0065] Vinyl tris (β-methoxyethoxy) silane, product name is A-172;

[0066] γ-aminopropyltrimethoxysilane coupling agent, the product brand is A-1100;

[0067] Lubricant: PEG400;

[0068] Film former:

[0069] The epoxy-modified polyester resin emulsion can be prepared according to the existing literature or commercial products can be used. (using the solvent method, put the monobasic acid, E-44 epoxy resin, IPA, TMP, pentaerythritol, organotin catalyst, and xylene into the four-necked flask by metering, and gradually heat up to 220°C in 1h, and react to an acid value of 60~ 80mg KOH / g; cool down to 170°C, add DMPA, react at 170°C to an end-point acid value of 21-30mg KOH / g, vacuum to remove the xylene solvent in the system, and obtain an epoxy-modifie...

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Abstract

The invention discloses a glass fiber stranded twistless rough yarn impregnating compound. The solid mass of the impregnating compound accounts for 6-14% of the total mass of the impregnating compound; the impregnating compound comprises the following components in percentage by solid mass: 6-20% of a coupling agent, 5-12% of a lubricant, 65-80% of a film-forming agent, 1-6% of an antistatic agentand 0.5-8% of a pH value regulator, wherein the film-forming agent is formed by mixing at least three of an epoxy modified polyester resin emulsion, water-soluble epoxy resin, a bisphenol A epoxy resin emulsion and a polyurethane resin emulsion. Glass fiber yarns produced by coating with the impregnating compound is good in compatibility with target resin, namely polyester resin, and good in permeability, the mechanical property of a product can be high, and the mechanical property index requirements of pultrusion profiles and winding pressure containers are met.

Description

technical field [0001] The invention relates to the technical field of glass fiber reinforced thermosetting resins, in particular to a glass fiber plied roving sizing agent, a preparation method, a product and an application. Background technique [0002] FRP is a composite material that has developed rapidly in the past 50 years, and 70% of the output of glass fiber is used to make FRP. After more than 40 years of development, my country's FRP industry has achieved successful applications in various fields of the national economy; such as construction industry, chemical and chemical industry, automobile and railway transportation industry, highway construction, shipbuilding, electrical industry and communication engineering Wait. With the development of science and technology and the improvement of people's living standards, many civilian FRP products have been developed and applied in large quantities, such as urban sculptures, arts and crafts modeling, fast dining tables ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/50C03C25/40C03C25/323C03C25/326C03C25/36C08K9/10C08K7/14C08L67/06C08J5/08
CPCC03C25/50C03C25/40C03C25/323C03C25/36C03C25/326C08J5/08C08K9/10C08K7/14C08J2367/06
Inventor 杨国明张志坚宋长久章建忠费其锋李明鲁亚辉钟洪强周贤旺杨洋范泳宇
Owner JUSHI GRP CO
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