Thermal insulation raw material, thermal insulation material and multilayered composite material

A technology of multi-layer composite materials and thermal insulation materials, applied in the field of thermal insulation raw materials, can solve the problems of low thermal insulation performance and the like

Inactive Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of low thermal insulation performance of existing thermal insulation materials, a...

Method used

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  • Thermal insulation raw material, thermal insulation material and multilayered composite material
  • Thermal insulation raw material, thermal insulation material and multilayered composite material
  • Thermal insulation raw material, thermal insulation material and multilayered composite material

Examples

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preparation example 1

[0028] This preparation example is used to illustrate the insulation raw material and insulation material provided by the present invention and the preparation method thereof.

[0029] Add 6g of silica airgel (average pore diameter of 25nm, porosity of 98%, purchased from Cabot Company) and 24g of polyethylene (purchased from Yanshan Petrochemical, brand LD100ac, the same below) into the cavity of the rheometer , kneaded for 8 minutes under the conditions of a kneading temperature of 180°C and a rotor speed of 30rmp, and obtained thermal insulation material T1 after cooling. The microstructure of the thermal insulation material T1 was observed with a scanning electron microscope, and the results showed that the silica airgel was uniformly dispersed in polyethylene.

preparation example 2

[0031] This preparation example is used to illustrate the insulation raw material and insulation material provided by the present invention and the preparation method thereof.

[0032] Add 7.5g of silica airgel (average pore diameter of 15nm, porosity of 92%, purchased from Cabot Company) and 22.5g of polyethylene into the cavity of the rheometer. Mixed for 8 minutes under the condition of 30rmp, and obtained insulation material T2 after cooling. The microstructure of the thermal insulation material T2 was observed with a scanning electron microscope, and the results showed that silica airgel was uniformly dispersed in polyethylene.

preparation example 3

[0034] This preparation example is used to illustrate the insulation raw material and insulation material provided by the present invention and the preparation method thereof.

[0035] Add 12g of silica airgel (average pore diameter of 40nm, porosity of 93%, purchased from Cabot Company) and 18g of polyethylene into the chamber of the rheometer, at a mixing temperature of 180°C and a rotor speed of 30rmp Mixed for 8 minutes under the conditions, after cooling to obtain insulation material T3. The microstructure of the thermal insulation material T3 was observed with a scanning electron microscope, and the results showed that silica airgel was uniformly dispersed in polyethylene.

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Abstract

The invention provides a thermal insulation raw material, a thermal insulation material and a multilayered composite material. The thermal insulation raw material comprises aerogel and thermoplastic polymer, by taking the total weight of the thermal raw insulation material as a reference, the content of the aerogel is not smaller than 10 percent, and the content of the thermoplastic polymer is not greater than 90 percent. The thermal insulation material provided by the invention has an excellent thermal insulation property, and the multilayered composite material comprising a thermal insulation formed by the thermal insulation material further has good mechanical property.

Description

technical field [0001] The invention relates to a thermal insulation raw material, a thermal insulation material and a multilayer composite material. Background technique [0002] The thermal conductivity of plastics is usually between 0.600W / mK and 0.15W / mK, and the thermal conductivity of different types of polymers is also different. The thermal conductivity of metal is between 200W / mK and 15W / mK, and the thermal conductivity of ceramics and glass is about 1W / mK. Therefore, compared with metals, ceramics and glass, plastic is a good thermal insulator. [0003] Traditional thermoplastic thermal insulation materials are usually filled with thermal insulation materials such as glass fiber and asbestos or made of thermal insulation materials by foaming technology. Although thermoplastic insulation materials filled with glass fiber or asbestos have certain thermal insulation properties, their thermal conductivity is still relatively high, and the thermal insulation effect is ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/12C08L25/06C08L77/02C08L77/06C08L67/02C08L33/02C08L33/08C08L33/10C08L33/12C08L33/24C08L79/02C08L83/04C08L75/02C08L79/04C08L65/00C08K3/36C08K3/22B29C43/20B32B27/32B32B27/34B32B27/00
CPCC08K7/26B32B27/08B32B27/32B32B27/34B32B2250/242B32B2307/304C08L23/06C08L23/12C08L77/02
Inventor 李娟姚雪容马蓓蓓郑俊鹏任毅郭敏罗水源
Owner CHINA PETROLEUM & CHEM CORP
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