Glass fiber product and glass fiber reinforced plastic

A glass fiber and product technology, applied in the field of glass fiber reinforced plastics, can solve the problems of unintended use, reduced bonding performance, and inability of sizing agent to penetrate deeply, and achieve less white glass, high strength, and excellent bonding performance Effect

Active Publication Date: 2012-03-28
NISSHIN CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the sizing agent cannot penetrate deeply into the unsaturated polyester resin and glass fiber bundles, resulting in the presence of white glass
Further, the use of nonionic surfactants such as the above-mentioned polyoxyethylene oxide surfactants

Method used

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  • Glass fiber product and glass fiber reinforced plastic
  • Glass fiber product and glass fiber reinforced plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] (preparation of emulsion)

[0066] A 3 liter glass vessel equipped with a stirrer, reflux condenser and thermometer was provided. Deionized water (173 parts) and ethylene-modified PVA (A) (ethylene content 7%, degree of saponification: 98.5 mol%, average degree of polymerization: 400; 20 parts) were placed in a container made of glass. After the air was completely purged with nitrogen, stirring was started.

[0067] The internal temperature of the glass container was increased to 80°C, at which temperature vinyl acetate monomer (100 parts), 10% aqueous hydrogen peroxide (1 part) and 10% tartaric acid aqueous solution (1.5 parts) were all continuously Add for 4 hours. Then, the reaction was performed at 80°C for 1 hour, followed by cooling to 30°C.

[0068] A vinyl acetate polymer emulsion having an evaporation residue (solid content) of 35.0% and a viscosity of 100 mPa·s was obtained. The methods of measuring the evaporation residue and viscosity will be described b...

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Abstract

The present invention discloses a glass fiber product, wherein the glass fiber is processed by a starching composition. The starching composition comprises synthetic resin emulsion. The synthetic resin emulsion is obtained through polymerizing individual vinyl acetate monomer or a monomer mixture which comprises vinyl acetate monomer and one or a plurality of unsaturated-group-containing monomers that are polymerizable with the vinyl acetate at the presence of alkylene-modified polyvinyl alcohol.

Description

technical field [0001] The present invention relates to reinforced glass fiber articles suitable for use in plastic resins useful in the production of glass fiber reinforced plastics, and also to glass fiber reinforced plastics produced using the glass fibers. Background technique [0002] Fiberglass reinforced plastics (FRP), due to their excellent strength and chemical stability, have been widely used for many years in a wide range of applications such as housing materials (tubs and digesters), boat and automobile parts and components. Using a matrix resin such as unsaturated polyester and glass fiber bundles chopped at a predetermined length (chopped glass strands, hereinafter may be abbreviated as "CS") or CS obtained by forming chopped glass strands into a mat-like shape felt sheets to prepare FRP. As CS, generally hundreds of glass filaments are gathered through a glass fiber spinning step and then bundled with a sizing agent formed of polyvinyl acetate emulsion as a ...

Claims

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Application Information

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IPC IPC(8): C08K9/04C08K7/14C08L67/06C08L63/00C08L63/04C08F18/08C08F8/12C08F16/06
Inventor 林贵幸中屋真一路
Owner NISSHIN CHEM IND CO LTD
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