Special sizing agent for chopped strands for strengthening phenolic resin

A technology of chopped strands and phenolic resin, which is applied in the field of production of alkali-free glass chopped fibers, can solve problems such as poor heat resistance, poor composite materials, and discoloration of products, and achieve good production processability, good stability, Effect of improving heat resistance

Active Publication Date: 2010-06-09
JUSHI GRP CO
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  • Abstract
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Problems solved by technology

[0006] In many similar sizings, the surfactants used in the film former contain low molecular weight chemicals, which may be unsaturated, have one or more amine groups, and these chemicals result in composites Poor performance, such as product discoloration, poor heat resistance, and low mechanical properties

Method used

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  • Special sizing agent for chopped strands for strengthening phenolic resin
  • Special sizing agent for chopped strands for strengthening phenolic resin

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Embodiment Construction

[0031] The technical scheme of the present invention will be further described below with specific examples, but protection scope of the present invention is not limited to this:

[0032] Determination of the embodiment of the present invention formula and description of the experimental method:

[0033] In order to ensure stable production of E-chopped strands, meet the requirements of chopped strands, and improve mechanical properties, we have selected silane coupling agents / cationic lubricants / organic antistatic agents / vinyl emulsions / polyvinyl acetate emulsions / Combination of epoxy emulsion / organic weak acid, this combination can guarantee to improve the mechanical properties of phenolic resin.

[0034] The raw material component among the present invention is selected as follows:

[0035] Silane coupling agent: γ-aminopropyltriethoxysilane (A-1100 from MOMENTIVE)

[0036] Cationic Lubricant: Stearic Acid Amide

[0037] Organic antistatic agent: fatty amine polyoxyethy...

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Abstract

The invention discloses a special sizing agent for chopped strands for strengthening phenolic resin, and the sizing agent is mainly prepared by silane coupling agent, organic weak acid, cationic lubricant, organic antistatic agent, vinyl emulsion, polyvinyl acetate emulsion, epoxy emulsion and deionized water. The special sizing agent for the chopped strands for strengthening the phenolic resin can lead the alkali-free chopped strands coated with the sizing agent component to be applicable to strengthening phenolic resin through selection and control of the components and the contents thereof, and the sizing agent has good stability and good production processability and can finally obviously improve the thermal resistance, the mechanical performance and the wear resistance.

Description

(1) Technical field [0001] The invention relates to a special sizing agent for reinforcing phenolic resin chopped strands, which is mainly used for the production of alkali-free glass chopped strands. (2) Background technology [0002] The glass fiber industry was born in the 1930s. After more than 70 years of development, it has become an emerging industry with strong vitality. About 70% of the total output of glass fiber is used as reinforcing material for composite materials, mainly for plastic reinforcement. [0003] At the same time, my country has become a big consumption and production country of phenolic resin. The phenolic resin industry is in a period of rapid development, and the domestic market will maintain a rapid development speed. The market application of phenolic resin has been developed to molding compound, casting, refractory material, friction material, abrasive abrasive tool, oilfield additive, tire rubber, electrical and electronic material, phenolic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/32C03C25/40
Inventor 张毓强张志坚李焕兴
Owner JUSHI GRP CO
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