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High heat-resistant fiber reinforcement vinyl ester composite material with low expansion coefficient

A low-expansion coefficient, composite material technology, applied in the field of high heat-resistant and low-expansion coefficient fiber-reinforced vinyl ester composite materials, can solve problems such as thermal expansion defects of aluminum alloys, and achieve the effect of low specific gravity

Inactive Publication Date: 2011-10-19
江苏兆新材料科技
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat resistance of glass fiber reinforced nylon material and the thermal expansion of aluminum alloy have obvious defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A fiber-reinforced vinyl ester composite material with high heat resistance and low expansion coefficient, its raw material composition is as follows: vinyl resin 22, glass fiber 20, carbon fiber powder 15, low profile agent 8, inorganic mineral filler 32, magnesium oxide 1.5 , release agent 2, curing agent 1.

[0013] Among them: vinyl resin is epoxy vinyl resin; glass fiber and carbon fiber powder are treated with silane-based coupling agent; low-profile agent is PVAc; inorganic mineral filler is aluminum hydroxide; curing agent is TBPB or TBPB and TBPO composite The initiation system, wherein the weight ratio of TBPB / TBPO is 0.7 / 0.3; the release agent is zinc stearate.

[0014] Put the above-mentioned vinyl ester resin, carbon fiber powder, low-profile agent, inorganic mineral filler, mold release agent, and curing agent into the high-speed shear mixer according to the formula, and fully stir. The speed is controlled at 800-1200rpm. Stir for 15 minutes. Put in the m...

Embodiment 2

[0017] Fiber-reinforced vinyl ester composite material with high heat resistance and low expansion coefficient, its raw material composition is as follows: vinyl resin 25, glass fiber 20, carbon fiber powder 30, low profile agent 8, inorganic mineral filler 32, magnesium oxide 1.5, Molding agent 2, curing agent 1.

[0018] Among them: vinyl resin is epoxy vinyl resin; glass fiber and carbon fiber powder are treated with silane-based coupling agent; low-profile agent is PVAc; inorganic mineral filler is aluminum hydroxide; curing agent is TBPB or TBPB and TBPO composite The initiation system, wherein the weight ratio of TBPB / TBPO is 0.7 / 0.3; the release agent is zinc stearate.

[0019] Put the above-mentioned vinyl ester resin, carbon fiber powder, low-profile agent, inorganic mineral filler, mold release agent, and curing agent into the high-speed shear mixer according to the formula, and fully stir. The speed is controlled at 800-1200rpm. Stir for 15 minutes. Put in the magn...

Embodiment 3

[0022] Fiber-reinforced vinyl ester composite material with high heat resistance and low expansion coefficient, its raw material composition is as follows: vinyl resin 28, glass fiber 20, carbon fiber powder 50, low profile agent 8, inorganic mineral filler 25, magnesium oxide 1.5, Molding agent 2, curing agent 1.

[0023] Among them: vinyl resin is epoxy vinyl resin; glass fiber and carbon fiber powder are treated with silane-based coupling agent; low-profile agent is PVAc; inorganic mineral filler is aluminum hydroxide; curing agent is TBPB or TBPB and TBPO composite The initiation system, wherein the weight ratio of TBPB / TBPO is 0.7 / 0.3; the release agent is zinc stearate.

[0024] Put the above-mentioned vinyl ester resin, carbon fiber powder, low-profile agent, inorganic mineral filler, mold release agent, and curing agent into the high-speed shear mixer according to the formula, and fully stir. The speed is controlled at 800-1200rpm. Stir for 15 minutes. Put in the magn...

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Abstract

The invention discloses a high heat-resistant fiber reinforcement vinyl ester composite material with a low expansion coefficient, comprising the following ingredients by weight percentage: 10-40 of vinylite, 15-25 of glass fiber, 10-60 of carbon fiber powder, 5-25 of low profile additive, 10-70 of inorganic mineral filler, 1-4 of magnesium oxide, 1-5 of releasing agent, and 0.5-2 of curing agents. The composite material has good mechanical performance, high heat resistance and the low expansion coefficient. The composite material product prepared by the material is a sheet molding compound (SMC), the adopted molding process is compression molding forming or injection molding, and can be widely applied to a precise part under a high-heat working environment.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a fiber-reinforced vinyl ester composite material with high heat resistance and low expansion coefficient. Background technique [0002] Vinyl ester resin is prepared by ring-opening addition reaction of epoxy resin and unsaturated monobasic acid. It combines the advantages of epoxy resin and unsaturated polyester resin. It has low density, excellent mechanical properties, and high durability. Thermal, corrosion resistance and fast curing characteristics; and carbon fiber powder, as a high-strength, high-modulus material, has a high status in the composite modification of materials. It is widely used as a structural material and high temperature and ablation resistant material due to its light weight, high strength, high temperature resistance, corrosion resistance, and excellent thermodynamic properties. Carbon fiber powder has many excellent properties. In addition to many out...

Claims

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Application Information

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IPC IPC(8): C08L101/06C08L25/06C08L33/12C08L31/04C08K13/06C08K9/06C08K7/14C08K7/06C08K3/22C08K3/26C08K3/34
Inventor 鲁平才阮诗平
Owner 江苏兆新材料科技
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