Resin-based composite material with controllable linear expansion coefficient and preparation method thereof

A technology of linear expansion coefficient and composite materials, which is applied in the field of resin-based composite materials and its preparation, can solve the problems of high processing cost, lower linear expansion coefficient, and high density of metal materials, and achieve simple production process, easy industrial production, and line The effect of low expansion coefficient
CN102337014AActive Publication Date: 2012-02-01SHENZHEN XINTIAN TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN XINTIAN TECH
Publication Date
2012-02-01
Patent Text Reader

Abstract

The invention provides a resin-based composite material with a controllable linear expansion coefficient and a preparation method thereof. The composite material is characterized by mainly comprising the following components in parts by weight: 10 parts of unsaturated polyester resin, 2-30 parts of filling material, 2-20 parts of fiber, 1-5 parts of low shrinking agent, 0.6-2 parts of mould release agent and 0.2-1 parts of initiator, wherein the filling material and fiber are materials with negative expansion coefficients or low expansion coefficients. The preparation method comprises the following steps: evenly mixing 1-5 parts of low shrinking agent, 0.6-2 parts of mould release agent and 0.2-1.5 parts of initiator with 10 parts of unsaturated polyester resin; then adding 2-30 parts of filling material and 2-20 parts of fiber for evenly mixing again; and finally, carrying out compression molding at the temperature of 140-160 DEG C. The linear expansion coefficient of the material provided by the invention is adjustable within a range of (8-30)*10<-6> / DEG C, and the material provided by the invention has isotropy.
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Description

technical field

[0001] The invention relates to a resin-based composite material with a controllable linear expansion coefficient and a preparation method thereof, in particular to a resin-based composite material with a low linear expansion coefficient and a controllable linear expansion coefficient and a preparation method thereof, which belongs to the resin-based composite material and its manufacturing methods. Background technique

[0002] At present, in the fields of electronics, communications and aerospace, in order to ensure that the product can work stably in an environment with large temperature changes or can be used reliably in different regions with large temperature differences, materials with low expansion coefficients are usually used to make the products excellent. dimensional stability.

[0003] In the field of communication, the widely used low-expansion materials are metal alloys, such as Invar alloys (the coefficient of linear expansion is 0.8×10 -6 / ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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