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A kind of flexible putty powder for building exterior wall and its preparation method and use method

A technology of building exterior walls and putty powder, which is applied in the direction of filling slurry, etc., can solve the problems of easy water seepage, poor fineness and compactness, and easy cracking, and achieve the effects of good dispersion, increased strength, and improved water resistance

Active Publication Date: 2021-12-28
辽宁颐和安全节能有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the defects of the current building exterior wall putty that is easy to crack, poor in fineness and compactness, and easy to seep water, the present invention proposes a kind of building exterior wall flexible putty powder and its preparation method and use method, thereby realizing the high adhesion of the exterior wall putty powder , smooth and dense and easy to scrape

Method used

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  • A kind of flexible putty powder for building exterior wall and its preparation method and use method

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Comparison scheme
Effect test

Embodiment 1

[0033] (1) Add regenerated rubber powder, inorganic powder, maleic anhydride, and dicumyl peroxide into a high-speed mixer at a mass ratio of 100:25:10:1, and mix at 40°C for 30 minutes at a speed of 300rpm to obtain Premix; the inorganic powder is talcum powder;

[0034] (2) Add the premixed material obtained in step (1) into a vortex jet mill for refinement and modification. Under the action of strong airflow shear, the regenerated rubber powder is continuously refined and grafted with maleic anhydride to obtain Modified regenerated rubber powder; the main engine speed of the vortex jet mill is controlled at 1000rpm, and the submachine speed is controlled at 600rpm;

[0035] (3) Portland cement, fine sand, modified regenerated rubber powder, mineral fiber, lime calcium powder, redispersible latex powder, sodium bentonite, and water reducer in a mass ratio of 40:15:15:5:5 : 0.5: 1: 0.1 mixed evenly, sealed and packaged to obtain a flexible putty powder for building exterior ...

Embodiment 2

[0040] (1) Add recycled rubber powder, inorganic powder, maleic anhydride, and dicumyl peroxide into a high-speed mixer at a mass ratio of 100:20:8:0.8, and mix for 50 minutes at 50°C at a speed of 250rpm to obtain Premix; the inorganic powder is calcium carbonate;

[0041] (2) Add the premixed material obtained in step (1) into a vortex jet mill for refinement and modification. Under the action of strong airflow shear, the regenerated rubber powder is continuously refined and grafted with maleic anhydride to obtain Modified regenerated rubber powder; the main engine speed of the vortex jet mill is controlled at 900rpm, and the submachine speed is controlled at 600rpm;

[0042] (3) Portland cement, fine sand, modified regenerated rubber powder, mineral fiber, lime calcium powder, redispersible latex powder, sodium bentonite, and water reducer in a mass ratio of 45:12:18:3:5 : 0.8: 1.5: 0.3 Mix evenly, seal and package to obtain a flexible putty powder for building exterior wa...

Embodiment 3

[0047] (1) Add recycled rubber powder, inorganic powder, maleic anhydride, and dicumyl peroxide into a high-speed mixer at a mass ratio of 100:22:10:1, and mix for 40 minutes at 45°C at a speed of 220rpm to obtain Premix; the inorganic powder is kaolin;

[0048] (2) Add the premixed material obtained in step (1) into a vortex jet mill for refinement and modification. Under the action of strong airflow shear, the regenerated rubber powder is continuously refined and grafted with maleic anhydride to obtain Modified regenerated rubber powder; the main engine speed of the vortex jet mill is controlled at 850rpm, and the submachine speed is controlled at 700rpm;

[0049] (3) Portland cement, fine sand, modified regenerated rubber powder, mineral fiber, lime calcium powder, redispersible latex powder, sodium bentonite, and water reducer in a mass ratio of 50:11:17:4:4 : 0.8: 2: 0.1 mixed evenly, sealed and packaged to obtain a flexible putty powder for building exterior walls; the ...

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Abstract

The present invention proposes a flexible putty powder for building exterior walls and its preparation method and use method. The components of the flexible putty powder include Portland cement, fine sand, modified regenerated rubber powder, mineral fiber, ash calcium powder, Disperse latex powder, sodium-based bentonite and water reducer; the modified regenerated rubber powder is regenerated rubber powder, inorganic powder, maleic anhydride, dicumyl peroxide, mixed by a high-speed mixer and finely divided by a vortex airflow mill. obtained by transformation. When in use, add putty powder dry powder and water into the container, after stirring, directly apply putty or spray putty on various exterior wall substrates. The putty powder provided by the invention has excellent plasticity, toughness, and workability after being mixed with water, can prevent the segregation of cement and fine sand, and can form a hydration gelling material with strong cohesion and good fluidity, increasing the putty It improves the strength of the coating, and effectively improves the waterproof and crack resistance of the putty.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a flexible putty powder for building exterior walls, a preparation method and a use method. Background technique [0002] Putty is a decorative material for leveling the surface of the wall. It is a thick paste paint and an indispensable product before the paint is painted. Among them, the exterior wall putty is a base-level surface treatment material applied to the exterior wall of a building before the finishing project for the purpose of leveling and crack resistance. According to the flexibility or dynamic crack resistance index of the putty film, it is divided into three types: common type (P type), flexible (R type) and elastic (T type). Ordinary building exterior wall putty is suitable for ordinary building exterior wall finishing projects (not suitable for exterior wall thermal insulation coating projects); flexible building exterior wall putty is suitable for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/34
CPCC09D5/34
Inventor 陈庆曾军堂
Owner 辽宁颐和安全节能有限公司