High intensity thermosetting molecule based composite material and application thereof

A composite material and polymer-based technology, applied in the field of composite materials, can solve the problems of softening and wear resistance, decreased service life, uneven strength, etc., achieve accurate and stable molding dimensions, reduce railway maintenance, strength and mold. high volume effect

Inactive Publication Date: 2011-06-01
嘉兴安普铁路配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve the dual characteristics of insulation and high strength, existing composite materials and some special composite materials are obtained by compounding metal and nylon plastics. However, due to the linear expansion coefficient, wear rate, and Temperature resistance, tensile strength, yield strength and elongation vary greatly. In practical applications, due to its poor temperature resistance and weather resistance, it will cause serious deformation, softening, wear resistance, and serious decline in service life.
[0003] There are also some thermoplastic resin composite materials in the prior art, which mainly use thermoplastic resin as the bonding material.

Method used

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  • High intensity thermosetting molecule based composite material and application thereof

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Embodiment 1

[0016] The high-strength thermosetting polymer-based composite material prepared by the die-casting method described in this example is to prepare a high-strength polymer thermosetting resin-modified epoxy resin and granular reinforcing material additives-carbon black, hollow microspheres , mica powder, ground into a uniform slurry, and after stirring evenly, add the curing crosslinking agent according to the ratio of 2:1 between the polymer thermosetting high-strength resin and the curing crosslinking agent, and infiltrate the quantitative fibrous reinforcing material——glass fiber, at 100 After pre-curing at -120°C for 20-40 minutes, the prepreg was prepared. The prepreg was quantitatively placed in the heated railway track fastener mold, and after exhausting, the pressure was 1000KN, and the temperature was controlled at 165-175°C. After 3 -After 6 minutes of post-curing molding, the fastener is made by a molding process. In terms of parts by weight, the fibrous reinforcing ...

Embodiment 2

[0018] The high-strength thermosetting polymer-based composite material described in this embodiment is to prepare a high-strength polymer thermosetting resin-modified epoxy resin and granular reinforcing material additives-carbon black, silicon dioxide, and mica powder in a prescribed proportion. , ground into a uniform slurry, after stirring evenly, add the curing cross-linking agent according to the weight ratio of the polymer thermosetting high-strength resin and the curing cross-linking agent in a ratio of 2:1, and after soaking and pre-curing at 100-120 ° C, the quantitative fibrous reinforcement Material - the combination of glass fiber and carbon fiber is continuously pultruded at a uniform speed (effective curing time is 3-6 minutes) through a weft heating mold (control temperature 165-175°C, tension 80-120KN), and the weft dimension is consistent after heat preservation and hardening The strips are cut according to a certain size and then shaped to obtain the fastener...

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Abstract

The invention relates to a high intensity thermosetting molecule based composite material, which is characterized by comprising high molecular thermosetting high intensity resin in a net structure, a curing crosslinking agent, a fibrous reinforcing material and a granular reinforcing material additive. The high intensity thermosetting molecule based composite material and application thereof have the advantages of excellent mechanical property, high material molding degree, wide application range and long service life, and can meet the requirements of various workpieces manufactured by the traditional Q235 carbon steel founding and demolding and be applied to various industries.

Description

technical field [0001] The invention relates to a composite material, in particular to a high-strength thermosetting polymer-based composite material and its application. Background technique [0002] As a new type of material, composite materials have been more and more applied to various industries. Composite materials have good insulation and plasticity, and can be made into various shapes through different processes and molds. With the progress of society and the shortage of various resources, the requirements for composite materials are also getting higher and higher. In order to achieve the dual characteristics of insulation and high strength, existing composite materials and some special composite materials are obtained by compounding metal and nylon plastics. However, due to the linear expansion coefficient, wear rate, and The temperature resistance, tensile strength, yield strength and elongation vary greatly. In practical applications, due to its poor temperature...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08L63/00C08L61/06C08L61/24C08L61/28C08L75/04C08L79/08C08K13/04C08K7/14C08K7/06C08K7/02C08K7/12C08L77/10C08L33/20C08L67/00C08L77/00C08L29/14C08L23/12B29C43/58E01B9/00E01B9/66
Inventor 吴建伟敬越
Owner 嘉兴安普铁路配件有限公司
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