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Ultrahigh-strength thermal insulation material and preparation method thereof

A thermal insulation material and ultra-high-strength technology, applied in the field of high-strength thermal insulation new materials, it can solve the problems of low strength and easy peeling, and achieve the effect of high strength, avoiding oxidative decomposition, and avoiding excessively low internal temperature.

Active Publication Date: 2018-06-19
BEIJING SATELLITE MFG FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems existing in the prior art, the present invention provides an ultra-high-strength thermal insulation material and its preparation method, which solves the problems of low strength of traditional thermal insulation materials and easy peeling off when combined with external walls. The thermal insulation materials produced by this method meet the requirements of The vertical surface tensile strength of the national building exterior wall composite material is greater than the requirement of 150Kpa proposed by JG149-2003, and the vertical surface tensile strength of the material can reach more than 4Mpa

Method used

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  • Ultrahigh-strength thermal insulation material and preparation method thereof

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preparation example Construction

[0026] An embodiment of the present invention provides a method for preparing an ultra-high-strength thermal insulation material, comprising the following steps:

[0027] Step 1, using phenolic resin to impregnate the quartz-type chopped reinforcing fiber mat to obtain a prepreg;

[0028] Specifically, in the embodiment of the present invention, the quartz-based chopped reinforcing fiber mat is preferably one or a combination of chopped glass fiber mat or chopped quartz fiber mat, more preferably a chopped fiber mat with a fiber diameter of 6-9 mm. Glass fiber, to ensure that the insulation material obtained has higher strength; the density of the quartz-like chopped reinforcing fiber mat is preferably 120-180kg / m3, to ensure that the fiber mat has good impregnation performance and ensure that the resin matrix is ​​evenly distributed; The resin mass content is preferably 20%-70%, more preferably 23%-30%;

[0029] Step 2, curing the prepreg in an oxygen-enriched environment to...

Embodiment 1

[0037] Step 1. Preparation of prepreg:

[0038] According to the proportion of resin mass content being 25%, adopting phenolic resin to impregnate chopped non-alkali glass fiber mat with fiber diameter of 6-9mm, the density of said chopped non-alkali glass fiber mat is 150kg / m 3 ;

[0039] Step 2, see figure 1 , each of the multiple prepregs 3 prepared in step 1 is supported by a porous partition 4 (porous plate), and stacked in layers. When stacked, the partitions 4 are overhead through the limit block 2 placed on the platform 5 Position limit, press block 1 on the uppermost partition 4 to form a component to be cured, put the component to be cured into a heating furnace, and raise the temperature to 185°C at a heating rate of 5-6°C / min, Keep warm for 3 hours to obtain the insulation material;

[0040] Step 3. Raise the temperature to 350° C. at a heating rate of 10° C. / min, keep it warm for 2 hours, and cool down to obtain an ultra-high-strength thermal insulation materia...

Embodiment 2

[0043] Step 1. Preparation of prepreg:

[0044] According to the proportion that the resin mass content is 70%, adopt phenolic resin to impregnate the chopped non-alkali glass fiber mat with fiber diameter of 6-9mm, the density of the chopped non-alkali glass fiber mat is 150kg / m 3 ;

[0045] Step 2, see figure 1 , each of the multiple prepregs 3 prepared in step 1 is supported by a porous partition 4 (porous plate), and stacked in layers. When stacked, the partitions 4 are overhead through the limit block 2 placed on the platform 5 Position limit, press block 1 on the uppermost partition 4 to form a component to be cured, put the component to be cured into a heating furnace, and raise the temperature to 185°C at a heating rate of 5-6°C / min, Keep warm for 3 hours to obtain the insulation material;

[0046] Step 3. Raise the temperature to 350° C. at a heating rate of 10° C. / min, keep the temperature for 2 hours, and cool down to obtain an ultra-high-strength thermal insulat...

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Abstract

The invention provides an ultrahigh-strength thermal insulation material and a preparation method thereof, and belongs to the field of new high-strength thermal insulation materials. The preparation method comprises the following steps: impregnating quartz chopped reinforced fiber felt with phenolic resin to obtain a prepreg; solidifying the prepreg in an oxygen-enriched environment to obtain thethermal insulation material; performing thermal insulation on the thermal insulation material in oxygen-enriched environment at 320-380 DEG C for 2-6 h to obtain the ultrahigh-strength thermal insulation material. The thermal insulation material prepared with the method meets the requirement that the tensile strength of the vertical surface of the national building exterior wall composite materialis higher than 150 Kpa proposed by JG149-2003, and the tensile strength of the vertical surface of the material can reach 4 Mpa or higher.

Description

technical field [0001] The invention provides an ultra-high-strength thermal insulation material and a preparation method thereof, belonging to the field of new high-strength thermal insulation materials. Background technique [0002] High-efficiency energy-saving insulation materials in the construction industry usually use resin-based composite materials. At present, resin-based composite materials used as thermal insulation materials are usually obtained by impregnating chopped reinforcing fiber mats with a resin matrix to obtain prepregs, and the prepregs are cured under vacuum. [0003] The insulation materials prepared by the prior art generally have low strength and are prone to peeling and falling off. The incidents of external wall peeling and wounding caused by this occur every year, causing serious losses to people's lives and property. Contents of the invention [0004] In order to overcome the problems existing in the prior art, the present invention provides...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08K7/14C08J5/24
CPCC08J5/24C08J2361/06C08K7/14
Inventor 孟博蒋贵刚张玉生宫顼林大庆
Owner BEIJING SATELLITE MFG FACTORY
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