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Hydrophobic silicon oxide aerogel insulation material and preparation method thereof

A technology of water silica and thermal insulation materials, which is applied in the field of hydrophobic silica airgel thermal insulation materials and its preparation, can solve the problems of high water absorption, high density, and easy collapse, etc., to reduce bulk density, improve thermal conductivity, Effect of reducing water absorption

Inactive Publication Date: 2015-10-28
ZHUO DA NEW MATERIAL TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are high density and high thermal conductivity. Under the premise of meeting the insulation effect, the weight is easy to exceed the national standard requirements. The water absorption rate is high, and it is easy to collapse after absorbing water.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The hydrophobic silicon oxide airgel thermal insulation material of the present invention comprises the following components:

[0018] Cement 80g, fly ash 20g, rubber powder 1.2g, HPMC 0.8g, lignin 0.4g, PP fiber 0.2g, hydrophobic airgel particles 60g, water 600ml.

[0019] The hydrophobic silicon oxide airgel particles have a bulk density of 60-80 kg / m3, a water absorption rate of less than 1%, and a thermal conductivity of less than 0.02 W / m·K.

[0020] The viscosity of the HPMC is 20W.

Embodiment 2

[0022] The hydrophobic silicon oxide airgel thermal insulation material of the present invention comprises the following components:

[0023] Cement 80g, fly ash 20g, rubber powder 1.2g, HPMC 0.8g, lignin 0.4g, PP fiber 0.2g, hydrophobic airgel particles 100g, water 600ml.

Embodiment 3

[0025] The hydrophobic silicon oxide airgel thermal insulation material of the present invention comprises the following components:

[0026] Cement 80g, fly ash 30g, rubber powder 4g, HPMC 2g, lignin 2g, PP fiber 1g, hydrophobic airgel particles 120g, water 600ml.

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Abstract

The present invention provides a hydrophobic silicon oxide aerogel insulation material with low thermal conductivity, low water absorption and low density and preparation method thereof. The hydrophobic silica aerogel insulation material provided by the invention includes the following components: 80g of cement, 0-30g of fly ash, 0-4g of glue powder, 0-2g of HPMC, 0-2g of lignin, 0.1-1g of PP fiber, 40-120g of hydrophobic aerogel particles and 600ml of water. According to the hydrophobic silica aerogel insulation material and the preparation method thereof provided by the present invention, the hydrophobic aerogel is made into thermal insulation mortar, which maintains the traditional advantages and gains increased thermal conductivity coefficient, reduced unit weight and reduced water absorption, so as to better meet the needs of exterior wall external insulation.

Description

technical field [0001] The invention relates to a thermal insulation material and a preparation method thereof, in particular to a hydrophobic silicon oxide airgel thermal insulation material and a preparation method thereof. Background technique [0002] Insulation mortar is a kind of ready-mixed dry powder mortar made of various light insulation materials as aggregate, cement as cement, mixed with some modified additives, and mixed by the production enterprise, and is used to construct building exterior walls. A building material for insulation. The main aggregates of traditional thermal insulation mortar are vitrified microbeads, expanded perlite, polystyrene particles, etc., which have the advantages of cheap price, convenient construction, class A fire protection, and durability. The disadvantages are high density and high thermal conductivity. Under the premise of satisfying the thermal insulation effect, the weight is easy to exceed the national standard requiremen...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B14/06
Inventor 刘国强杨卓舒邝清林冯强蔡世楷武晓博陈庚刘建波
Owner ZHUO DA NEW MATERIAL TECH GRP
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