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Weather-proof exterior wall putty powder and preparation method thereof

An exterior wall putty and weather-resistant technology, applied in filling slurry and other directions, can solve the problems of poor waterproof and breathable performance, limited applicability, and non-smooth coating surface, improve environmental performance and crack resistance, and facilitate operation and control. , the effect of stable performance

Inactive Publication Date: 2021-03-16
冯国旭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing exterior wall putty powder has the problems of easy aging, falling off, poor weather resistance, low hardness, poor waterproof and air permeability, and the surface is not smooth after brushing due to relatively large particles, which cannot meet the obvious requirements of dry and wet climates. used in the region
[0004] The patent application whose publication number is CN104231711B discloses a kind of putty powder with high waterproof, high hardness and high adhesion for building exterior walls. It is composed of the following raw materials in parts by weight: white cement 20-30, calcium bicarbonate 8- 20, talcum powder 25-35, ash calcium powder 20-30, paraffin wax 0.08-0.12, quartz powder 5-12, propylamine 0.05-0.1, hydroxypropyl methylcellulose 0.15-0.2, wood fiber 0.05-0.1 rubber powder 0.2 ~0.35, pigment 0.05~0.1, this kind of putty powder has good waterproof performance and strong adhesion, but its weather resistance is poor and its applicability is limited

Method used

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  • Weather-proof exterior wall putty powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A weather-resistant exterior wall putty powder is characterized in that it comprises the following components in parts by weight: hydrophobic gas silicon 3 parts of R8123, 4 parts of fluorine-containing silicon ionomer bonding base material, 2 parts of vinyl-terminated nitrile rubber, 1 part of terpene phenolic resin, 15 parts of rectorite, 0.4 parts of initiator, 0.3 parts of nano-boron fiber, Shuangfei 45 parts of powder, 0.5 parts of zinc borosilicate.

[0033] The particle size of the double fly powder is 1000 mesh; the diameter of the nano-boron fiber is 200nm, and the aspect ratio is 12:1; the initiator is azobisisobutyronitrile; the particle size of the rectorite is 800 head.

[0034] The preparation method of the fluorine-containing silicon ionomer bonding base material comprises the following steps:

[0035] Step D1, adding N,N'-bis(2-hydroxyethyl)-N,N'-bis(trimethoxysilylpropyl)ethylenediamine and epichlorohydrin into the organic solvent, at 35°C The react...

Embodiment 2

[0043] A weather-resistant exterior wall putty powder is characterized in that it comprises the following components in parts by weight: hydrophobic gas silicon 3.5 parts of R812, 4.5 parts of fluorine-containing silicon ionomer bonding base material, 2.5 parts of vinyl-terminated nitrile rubber, 1.5 parts of terpene phenolic resin, 17 parts of rectorite, 0.5 parts of initiator, and 0.4 parts of nano boron fiber , Shuangfei powder 47 parts, zinc borosilicate 0.7 parts.

[0044] The particle size of the double fly powder is 1100 mesh; the diameter of the nano-boron fiber is 250nm, and the aspect ratio is 13:1; the initiator is azobisisoheptanonitrile; the particle size of the rectorite is 900 head.

[0045] The preparation method of the fluorine-containing silicon ionomer bonding base material comprises the following steps:

[0046] Step D1, adding N,N'-bis(2-hydroxyethyl)-N,N'-bis(trimethoxysilylpropyl)ethylenediamine and epichlorohydrin into the organic solvent, at 40°C T...

Embodiment 3

[0054] A weather-resistant exterior wall putty powder is characterized in that it comprises the following components in parts by weight: hydrophobic gas silicon 24 parts of R812, 5 parts of fluorine-containing silicon ionomer bonding base material, 3 parts of vinyl-terminated nitrile rubber, 2 parts of terpene phenolic resin, 20 parts of rectorite, 0.6 parts of initiator, 0.45 parts of nano-boron fiber, Shuangfei 50 parts of powder, 1 part of zinc borosilicate.

[0055] The particle size of the double fly powder is 1150 mesh; the diameter of the nano-boron fiber is 300nm, and the aspect ratio is 13.5:1; the initiator is azobisisobutyronitrile; the particle size of the rectorite is 950 head.

[0056] The preparation method of the fluorine-containing silicon ionomer bonding base material comprises the following steps:

[0057] Step D1, adding N,N'-bis(2-hydroxyethyl)-N,N'-bis(trimethoxysilylpropyl)ethylenediamine and epichlorohydrin into the organic solvent, at 45°C The reac...

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Abstract

The invention discloses weather-proof exterior wall putty powder which is characterized by comprising the following components in parts by weight: 3-5 parts of hydrophobic gas silicon, 4-6 parts of fluorine-containing silicon ionomer bonding base material, 2-4 parts of vinyl-terminated nitrile rubber, 1-3 parts of terpene phenolic resin, 15-25 parts of rectorite, 0.4-0.8 part of initiator, 0.3-0.6part of nano boron fiber, 45-55 parts of heavy calcium carbonate powder and 0.5-1.5 part of zinc borosilicate. The invention further provides a preparation method of the weather-proof exterior wall putty powder. The weather-resistant exterior wall putty powder provided by the invention is excellent in weather resistance, excellent in comprehensive performance and waterproof performance, good in performance stability, long in service life, green and safe.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a weather-resistant exterior wall putty powder and a preparation method thereof. Background technique [0002] In order to achieve a better decorative effect, the modern wall decoration process usually brushes a layer of exterior wall putty powder on the wall surface. The exterior wall putty powder is made of inorganic gelling material as the base material, and finely processed with bonding materials and other additives. Its outstanding features are high bonding strength, water resistance, alkali resistance and good construction performance. As a leveling material for the surface of outdoor buildings, it can be done once and for all, avoiding cracking, foaming, pulverization and falling off. It is widely used in cement walls, concrete walls, mosaic walls, tile walls, etc. [0003] The exterior wall putty powder is mostly made of heavy calcium, white cement, organic a...

Claims

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Application Information

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IPC IPC(8): C09D5/34
CPCC09D5/34
Inventor 冯国旭
Owner 冯国旭