Foamable composite material composition, foamed composite material and preparation method and application thereof

A composite material and composition technology, applied in the field of composite materials, can solve the problems of uncontrollable expansion ratio and low compressive strength of composite materials, and achieve the effect of ensuring uniformity, mechanical strength and excellent compressive strength

Pending Publication Date: 2022-02-18
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a kind of foamable composite material composition, foamable composite material and its Preparation method and application, the foaming compos

Method used

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  • Foamable composite material composition, foamed composite material and preparation method and application thereof
  • Foamable composite material composition, foamed composite material and preparation method and application thereof

Examples

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Effect test

Embodiment 1-8

[0097] (1) Preparation of component A

[0098] According to the ratio shown in Table 1, sodium silicate solution (content 47%, modulus 2.6) was sequentially added to the reactor, and a crosslinking agent and a heat-sensitive catalyst were added during stirring. Stir for 30 minutes to obtain a clear and transparent component A product.

[0099] (2) Preparation of polyisocyanate prepolymer

[0100] Add 80 parts by weight of polyphenyl polymethylene polyisocyanate into the reaction kettle, add 20 parts by weight of polyether polyol during stirring, and stir for 60 minutes to obtain a brown polyisocyanate prepolymer.

[0101] (3) Preparation of B component

[0102] Add 93 parts by weight of polyisocyanate prepolymer into the reaction kettle, add 7 parts by weight of diethylene glycol butyl ether acetate during stirring, and stir for 30 minutes to obtain a brown transparent component B product.

[0103] (4) C component is fly ash, comes from Guohua Sanhe Power Plant, and it is c...

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Abstract

The invention relates to the field of composite materials, and discloses a foamable composite material composition, a foaming composite material and a preparation method and application thereof. The foaming composite material comprises a component A, a component B and a component C, the weight ratio of the component A to the component B to the component C is 1: (0.7-0.95): (0.01-0.4); the component A comprises the following components in percentage by weight: 80 to 99.5 percent of an alkaline solution, 0.3 to 10 percent of a cross-linking agent and 0.3 to 10 percent of a thermosensitive catalyst; the component B contains a polyisocyanate prepolymer and a solubilizer, the content of the polyisocyanate prepolymer is 80-99% by weight, and the content of the solubilizer is 1-20% by weight; and the component C contains a silicon-aluminum material. The foaming composite material has controllable foaming degree and excellent compressive strength, and can be applied to the fields of coal mine gas drainage hole sealing, deep hole blasting, anchoring glue and the like.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a foamable composite material composition, a foamable composite material and a preparation method and application thereof. Background technique [0002] In coal mine gas drainage holes, deep hole blasting, and anchoring glue, due to high sealing performance requirements, the use environment is not easy to transport, and needs to withstand a certain pressure, so that the material has high foaming ratio, light weight, simple and convenient process, and strong sealing. , non-shrinkage after solidification and certain compressive strength and other properties. [0003] The fundamental method of gas control in coal mines is gas drainage, and the vast majority of high-gas mines in my country still use the gas control method of underground drainage. Underground gas control adopts drainage drilling, insert the drainage pipe and seal it, then connect it to the drainage pipeline and dra...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/66C08G18/48C08G18/10C08G18/32C08K3/34C08K7/26C08J9/00
CPCC08G18/7664C08G18/48C08G18/10C08K3/34C08K7/26C08J9/00C08J2375/08C08G18/3206
Inventor 张栋董阳卓锦德梁文斌王珂季宏伟李布赫
Owner CHNA ENERGY INVESTMENT CORP LTD
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