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Waterproof fireproof lightweight thermal insulation material and preparation method thereof

A thermal insulation material and lightweight technology, applied in clay preparation devices, chemical instruments and methods, manufacturing tools, etc., can solve the problems of poor water resistance, thermal insulation boards are easy to lose thermal insulation performance and mechanical properties, etc., to improve the structural shape and reduce rigidity , The effect of improving crack resistance

Active Publication Date: 2019-11-12
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some inorganic thermal insulation materials have poor water resistance, such as sodium silicate expanded perlite thermal insulation board and gypsum expanded perlite thermal insulation board, and the rest have high water absorption. For example, ordinary expanded perlite thermal insulation board has strong water absorption and hygroscopicity. , once the insulation board absorbs water, it is easy to lose its original thermal insulation performance and mechanical properties

Method used

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  • Waterproof fireproof lightweight thermal insulation material and preparation method thereof
  • Waterproof fireproof lightweight thermal insulation material and preparation method thereof
  • Waterproof fireproof lightweight thermal insulation material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A waterproof and fireproof lightweight thermal insulation material, the preparation method is as follows:

[0039] (1) Prepare according to the weight ratio of raw materials in Table 1: early strength 52.5 grade ordinary Portland cement 100, P1 expanded perlite 63, P2 expanded perlite 63, redispersible latex powder 6, cellulose ether 0.75, EVA emulsion 2.35, calcium stearate 4. Among them, the bulk density of P1 expanded perlite is 59.08kg / m 3 . The accumulated sieve allowances of 4.75mm, 2.36mm, 1.18mm, 600μm, 300μm, and 150μm are 0, 45.4%, 90.4%, 92.0%, 92.5%, and 99.5%, respectively, and the water absorption rate is 455%; the accumulation of P2 expanded perlite The density is 151.69kg / m 3 . The cumulative sieve allowances of 4.75mm, 2.36mm, 1.18mm, 600μm, 300μm, and 150μm are 0, 0.2%, 43.35%, 77.81%, 96.46%, and 97.82%, respectively, and the water absorption rate is 250%; EVA emulsion is ethylene-acetic acid Formed from ethylene; cellulose ether is commercially ...

Embodiment 2～5

[0044] The preparation process adopted in Examples 2-5 is the same as that of Example 1, the difference lies in the ratio of each raw material component, and the specific raw material ratio is shown in Table 1. The performance test results of the products obtained in Examples 2 and 3 are shown in Table 2.

[0045] Table 1 Embodiment 1~6 raw material ratio

[0046]

[0047] Table 2 Embodiment 1~3 performance test result

[0048]

[0049] From Table 1, it can be found that the products obtained in Examples 1 to 3 have low dry density, light weight, high compressive strength, and low thermal conductivity, indicating that the material has good thermal insulation performance, and absorbs water in the last 2 hours The rate is only about 24%, indicating that its low water absorption rate is a waterproof and fireproof lightweight thermal insulation material. The product obtained in this embodiment can not only solve the problems of flammability and high brittleness of organic ...

Embodiment 6

[0061] A waterproof and fireproof lightweight thermal insulation material, the preparation process is the same as that of Example 1, the difference is that the structure of expanded perlite is different, and the bulk density of P1 expanded perlite in this example is 40kg / m 3 , the water absorption rate is 400%; the cumulative sieve allowances of 4.75mm, 2.36mm, 1.18mm, 600μm, 300μm, and 150μm of the P1 expanded perlite are respectively 0, 50%, 92%, 95%, 97%, 99.9 %; The bulk density of the P2 expanded perlite is 120kg / m 3 , the water absorption rate is 200%; the cumulative sieve allowances of P2 expanded perlite at 4.75mm, 2.36mm, 1.18mm, 600μm, 300μm, and 150μm are 0, 2%, 45%, 85%, 97%, and 99%, respectively.

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Abstract

The invention relates to a waterproof fireproof lightweight thermal insulation material and a preparation method thereof. The material includes, by weight, 100 parts of Portland cement, 6.0-8.0 partsof redispersible latex powder, 0.5-5 parts of cellulose ether, 50-80 parts of P1 expanded perlite, 50-70 parts of P2 expanded perlite, 1-5 parts of an EVA emulsion and 1-10 parts of calcium stearate.The method includes subjecting the expanded perlite to hydrophobic treatment with the EVA emulsion; mixing the Portland cement, the redispersible latex powder, the cellulose ether and the calcium stearate in a dry manner; then adding water; stirring the mixture; adding the expanded perlite; stirring the mixture; and curing a test piece after molding to obtain a product. Compared with the prior art, the material and the method can solve a problem that organic heat insulating materials are flammable, high in brittleness, and the like, and solve a problem that traditional inorganic materials areprone to water absorption. The prepared material has strong adhesion, fireproofness, waterproofness, heat preservation, and other advantages.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a waterproof and fireproof lightweight thermal insulation material and a preparation method thereof. Background technique [0002] The rapid development of my country's construction industry has led to more and more building energy consumption. The requirements for building energy conservation can ensure the sustainable development of buildings and the environment, and are of great significance to the improvement and protection of the ecological environment. As far as the whole building is concerned, the heat transfer heat loss of the wall structure accounts for about 60% to 70%; the heat transfer heat loss of doors and windows accounts for about 20% to 30%; the heat transfer heat loss of the roof accounts for about 10%. Therefore, it is very important to improve the thermal performance of the external wall to achieve the effect of building energy saving. my country m...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B20/10B28C5/08B28B13/02
CPCB28B13/02B28C5/08C04B20/1033C04B28/04C04B2111/27C04B2111/28C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B14/185C04B2103/0057C04B24/383C04B24/085
Inventor 苏宇峰黄黎明杨正宏吴姝娴
Owner TONGJI UNIV