High-strength high-mold corrosion-resistant vinyl ester resin SMC sheet molding compound and preparation method thereof

A technology of vinyl ester resin and sheet molding compound, which is applied in the field of high-strength, high-modulus, corrosion-resistant vinyl ester resin SMC sheet molding compound and its preparation, and achieves the effects of simple manufacturing method, no discharge of three wastes, and low cost

Inactive Publication Date: 2016-04-20
四川远鸣科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The huge specific surface area and abundant functional groups on the surface of graphene oxide endow it with excellent composite properties. After modification and reduction, it can form nanoscale dispersion in the polymer matrix. In addition, graphene oxide is low in cost and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036]Example 1: This example provides a high-strength, high-modulus, corrosion-resistant vinyl ester resin SMC sheet molding compound. The raw materials include: (A) Magnesium oxide-thickened vinyl ester resin. Thickening bisphenol A type vinyl ester resin, the weight part is 80 parts; (B) the high modulus fiber composition selects carbon fiber and glass fiber hybrid, and carbon fiber and glass fiber adopt independent impregnation system; Carbon fiber is through silyl coupling agent-treated, the specification is 24K; the glass fiber is alkali-free untwisted glass fiber yarn treated with a silane-based coupling agent, and its specification is 2400TEX. Parts by weight are 120 parts; (C) graphene oxide powder is nanoscale, parts by weight are 15 parts; (D) low profile agent is PVAc, parts by weight are 40 parts; (E) thickener is magnesium oxide paste, It is specifically styrene / activated magnesium oxide powder / zinc stearate=64 parts / 35 parts / 1 part, and the weight part of magnes...

Example Embodiment

[0045] Example 2: A high-strength, high-modulus, corrosion-resistant sheet molding compound (SMC material) whose raw materials include: (A) Vinyl ester resin thickened by magnesium oxide (MgO) choose OY-8976 thickening and toughening double Phenol A type vinyl ester resin, the parts by weight are 90 parts; (B) the high modulus fiber composition selects the mixture of basalt fiber and glass fiber, and the basalt fiber and glass fiber adopt a separate impregnation system; agent-treated, the specification is 48K; the glass fiber is alkali-free untwisted glass fiber yarn treated with a silane-based coupling agent, and its specification is 4800TEX. Parts by weight are 130 parts; (C) graphene powder is nanoscale, parts by weight are 20 parts; (D) low profile agent is PS, parts by weight are 45 parts; (E) thickener is magnesium oxide paste, Specifically, styrene / activated magnesium oxide powder / zinc stearate=60 parts / 38 parts / 2 parts, the weight part of magnesium oxide paste is 4 par...

Example Embodiment

[0054] Example 3: A high-strength, high-modulus, corrosion-resistant vinyl ester resin SMC sheet molding compound, its raw materials include by weight: (A) the vinyl ester resin that can be thickened with magnesium oxide is OY-8978 thickened phenolic type Vinyl ester resin, the parts by weight are 70 parts; (B) the high modulus fiber composition selects the hybrid of carbon fiber and glass fiber, and the carbon fiber and glass fiber adopt a separate impregnation system; 12K; the glass fiber is alkali-free untwisted glass fiber yarn treated with a silane-based coupling agent, and its specification is 2400TEX. Parts by weight are 110 parts; (C) graphene oxide powder is nanoscale, and parts by weight are 10 parts; (D) low profile agent is that PMMA and PVAc are 1 to 1 combination by weight, and parts by weight are 35 parts; ( E) The thickener is magnesium oxide paste, specifically styrene / activated magnesium oxide powder / zinc stearate=65 parts / 33 parts / 3 parts, and the weight par...

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Abstract

The invention discloses a high-strength high-mold corrosion-resistant vinyl ester resin SMC sheet molding compound and a preparation method thereof. The high-strength high-mold corrosion-resistant vinyl ester resin SMC sheet molding compound is prepared from the following raw materials: phenolic aldehyde-type epoxy vinyl ester resin capable of being thickened by magnesium oxide, a high-modulus fiber combination, oxidized graphene powder, a low shrinkage agent, a thickening agent, an inorganic mineral filler, a wetting dispersant, a coupling agent, a curing agent and a mold release agent. The preparation method comprises the following steps: preparation of graphene-based vinyl ester resin size, preparation of the thickening agent, preparation of resin paste, impregnation, layering, and curing. The preparation method is simple and easy to operate. The product is high in not only corrosion resistance and solvent resistance, but also strength and modulus, and has excellent performances in the aspects of heat, power, electricity and the like.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a high-strength, high-modulus, corrosion-resistant vinyl ester resin SMC sheet molding compound and a preparation method thereof. Background technique [0002] Sheet molding compound (SMC) is a high-strength composite material developed in China in recent years. The material has a high fiber content, and continuous long fibers or directional long fibers are applied, thereby improving the mechanical strength of the material. The development of sheet molding compounds is inseparable from the automotive industry's recent needs to produce light-weight fuel-efficient vehicles and reduce energy consumption during production. The goal is to replace most of the metal structural parts of the car body, such as door beams, skins, bumpers and wheels, with lower-cost manufactured parts. In the aviation, shipbuilding, and weapon industries, sheet molding compounds with light weight and good ...

Claims

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Application Information

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IPC IPC(8): C08L63/10C08L29/04C08K13/06C08K9/06C08K7/06C08K7/14C08K7/10C08K3/22C08K3/04C08K5/098B29C70/46
CPCB29C70/46C08K2201/011C08L63/10C08L2201/08C08L2205/025C08L2205/035C08L29/04C08K13/06C08K9/06C08K7/06C08K7/14C08K7/10C08K2003/222C08K3/04C08K5/098
Inventor 何通
Owner 四川远鸣科技有限公司
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