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Resin composition, SMC composite material, as well as preparation methods and application thereof

A technology of resin composition and composite material, applied in the field of composite materials, can solve the problems of low mechanical strength of unsaturated polyester, can not meet, limit the application of SMC composite materials, etc., to improve the interface bonding force, prolong the storage life, avoid resistance Effects of insufficient thermal and flame retardancy

Active Publication Date: 2018-11-20
SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current SMC composite materials are mainly unsaturated polyester SMC. Although its application and development are relatively mature after years of development, certain problems are still exposed during its use, such as the mechanical strength of unsaturated polyester is very low. , can not meet the requirements of most uses, and it has relatively large defects in heat resistance, flame retardancy, low smoke and low toxicity, etc., which greatly limits the application of SMC composite materials in vehicles, construction, electronics and other industries

Method used

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  • Resin composition, SMC composite material, as well as preparation methods and application thereof
  • Resin composition, SMC composite material, as well as preparation methods and application thereof
  • Resin composition, SMC composite material, as well as preparation methods and application thereof

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Embodiment 1

[0063] The preparation method of the resin composition described in the present embodiment, comprises the steps:

[0064] (A) the viscosity of 40 mass parts is that the ethylene glycol of 1500mPa·s thermosetting phenolic resin and 3 mass parts is stirred, obtains mixed material A;

[0065] (B) Add 40 parts by mass of quartz powder in the mixed material A and stir to obtain the mixed material B;

[0066] (C) Add 2 mass parts of calcium stearate and 0.5 mass parts of KH550 coupling agent in the mixture B and stir to obtain the mixture C;

[0067] (D) Add 6 parts by mass of calcium oxide to the mixed material C and stir to obtain the mixed material D, which is the resin composition.

Embodiment 2

[0069] The preparation method of the resin composition described in the present embodiment, comprises the steps:

[0070] (A) the viscosity of 40 parts by mass is 3000mPa·s thermosetting phenolic resin and polyethylene glycol-400 of 5 parts by mass are stirred, obtain mixed material A;

[0071] (B) Add 20 mass parts of aluminum hydroxide and 25 mass parts of quartz powder in the mixed material A and stir to obtain the mixed material B;

[0072] (C) Add 1 mass part of zinc stearate and 0.3 mass parts of KH570 coupling agent in the mixture B and stir to obtain the mixture C;

[0073] (D) Add 5 parts by mass of magnesium oxide into the mixture C and stir to obtain the mixture D, which is the resin composition.

Embodiment 3

[0075] The preparation method of the resin composition described in the present embodiment, comprises the steps:

[0076] (A) the viscosity of 45 parts by mass is 2000mPa·s thermosetting phenolic resin and polyethylene glycol-600 of 3 parts by mass are stirred, obtain mixed material A;

[0077] (B) Add the heavy calcium carbonate of 20 mass parts and the aluminum hydroxide of 25 mass parts in mixed material A and stir, obtain mixed material B;

[0078] (C) Add 1 mass part of calcium stearate, 1 mass part of zinc stearate and 0.2 mass part of KH560 coupling agent in the mixture B and stir to obtain the mixture C;

[0079] (D) Add 3 parts by mass of magnesium hydroxide and 1 part by mass of zinc oxide into the mixed material C and stir to obtain the mixed material D, which is the resin composition.

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Abstract

The invention relates to the technical field of composite materials, in particular to a resin composition, an SMC composite material, as well as preparation methods and application thereof. The resincomposition is mainly prepared by mixing a resin, a thickener and a solvent. According to the invention, the thickener is used to adjust the viscosity of the resin composition, and the solvent together with the thickener is used to control the initial viscosity, so as to strictly control the viscosity change curve of the resin composition, and ensure that the initial viscosity of the resin composition is in a relatively low range. Therefore, when being used for preparing a composite material, the resin composition can be sufficiently wetted with fiber, to improve the comprehensive mechanical properties of the composite material. In addition, the viscosity of the resin composition increases rapidly, the resin composition is easy to mold, and the obtained product has high mechanical properties.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a resin composition, an SMC composite material and a preparation method and application thereof. Background technique [0002] SMC (Sheet Molding Compound) composite material is a new type of thermosetting FRP molding material. It is one of the most important molding methods in fiber-reinforced plastics. The combination of fibers and resins can improve the comprehensive performance of composite materials. It has light weight and high strength. High, good insulation, water resistance, corrosion resistance and anti-aging performance, long service life, beautiful appearance, is an excellent material for the preparation of products, and has a wide range of applications in actual production and life. With the development of my country's national economy, the technical level of the SMC industry has been significantly improved, and at the same time more stringent requirement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L71/02C08K13/02C08K3/36C08K5/053C08K3/22B29C70/50
CPCB29C70/504C08K3/22C08K3/36C08K5/053C08K13/02C08K2003/2224C08K2003/2227C08K2003/2296C08K2003/265C08K2201/014C08L61/06C08L2201/02C08L2201/08C08L71/02C08K3/26C08K5/098
Inventor 唐地源李枝芳吕爱超秦海洋
Owner SHANDONG SHENGQUAN NEW MATERIALS CO LTD