High-molecular polymer material for external wall thermal insulation

Abstract

The invention discloses a high-molecular polymer material for external wall insulation. The material comprises the following components in percentage by weight: 30%-40% of black cement, 1%-3% of rubber powder, 5%-10% of fine sand, 5%-10% of ground calcium carbonate, 0.3%-0.8% of wood fiber, 0.3%-0.8% of hydroxypropyl methyl cellulose, 0.1%-0.3% of polyvinyl alcohol powder PVA, 10%-20% of expanded vermiculite, 10%-20% of expanded perlite and 10%-15% of hollow porous silicon oxide microspheres.

Description

technical field [0001] The invention relates to the technical field of thermal insulation of external walls, in particular to a high molecular polymer material for thermal insulation of external walls. Background technique [0002] At present, the external walls of the market are all insulated with thermal insulation boards, and then exterior wall coatings are applied on the thermal insulation boards, specifically three layers of "thermal insulation boards + interface agents + putty". However, such an approach has the following risks: [0003] 1. The insulation board is hollow and made of fireproof cotton, but it still has a large water absorption rate. When the insulation board is damaged or the seal is degummed, rainwater can easily soak into the inside of the insulation board. When the fireproof cotton absorbs water, it will Shrinkage, settlement, and accumulation together, thus losing the effect of heat preservation. [0004] 2. The two sides of the insulation board ar...

AI Technical Summary

Problems solved by technology

[0003] 1. The insulation board is hollow and made of fireproof cotton, but it still has a large water absorption rate. When the insulation board is damaged or the seal is degummed, rainwater can easily soak into the inside of the insulation board. When the fireproof cotton absorbs water, it will Shrinkage, settlement, and accumulation together, thus losing the effect of heat preservation

[0004] 2. The two sides of the insulation board are metal structures, and the bond strength between the exterior wall paint and the insulation board will deteriorate with the erosion of rain and sun, eventually leading to shedding

Especially in areas with active earthquakes, the surface of the wall is attached with too thick adhesive objects, which are very easy to fall off due to fluctuations, which will increase the number of falling accidents and cause greater casualties

[0006] 4. Insulation board + exterior wall paint, a total of 8 processes are required, which greatly affects the construction efficiency of the exterior wall, and at the same time increases the risk of workers working outdoors at heights

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