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Flexible putty of rubber powder and preparation method thereof

A technology of rubber powder and putty, applied in the direction of filling slurry, etc., to achieve high bonding strength, reduce drying shrinkage, and improve workability

Inactive Publication Date: 2010-05-19
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since traditional treatment methods cannot completely solve the problem of secondary pollution, more and more researchers are focusing on the recycling and reuse of waste tires.
However, there is no patented technology for using rubber powder in flexible putty

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take various raw materials by the following parts by weight:

[0022] Cement: 250g

[0023] Quartz powder: 230g

[0024] Redispersible latex powder vinyl acetate-ethylene polymer: 30g

[0025] Cellulose ether: 6g

[0026] Surface modified rubber powder: 300g

[0027] Defoamer polysiloxane: 5g

[0028] Calcium carbonate: 179g

[0029] After the above-mentioned raw materials are weighed, they are dispersed and mixed uniformly on a mixer, and then discharged and packaged. According to the putty: water weight ratio of 2:1 on site, it is directly used for manual batch scraping.

Embodiment 2

[0031] Take various raw materials by the following parts by weight:

[0032] Cement: 300g

[0033] Quartz powder: 250g

[0034] Redispersible latex powder vinyl acetate-ethylene polymer: 35g

[0035] Cellulose ether: 6g

[0036] Surface modified rubber powder: 350g

[0037] Defoamer polysiloxane: 5g

[0038] Calcium carbonate: 54g

[0039] After the above-mentioned raw materials are weighed, they are dispersed and mixed uniformly on a mixer, and then discharged and packaged. According to the putty: water weight ratio of 2:1 on site, it is directly used for manual batch scraping.

Embodiment 3

[0041] Take various raw materials by the following parts by weight:

[0042] Cement: 200g

[0043] Quartz powder: 200g

[0044] Redispersible latex powder Styrene-acrylate polymer: 25g

[0045] Cellulose ether: 5g

[0046] Surface modified rubber powder: 365g

[0047] Antifoaming agent polyethylene glycol: 5g

[0048] Calcium carbonate: 200g

[0049] After the above-mentioned raw materials are weighed, they are dispersed and mixed uniformly on a mixer, and then discharged and packaged. On-site according to the putty: water weight ratio of 2:1 after preparation, directly used for manual batch scraping.

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PUM

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Abstract

The invention relates to a flexible putty of rubber powder and a preparation method thereof, which belong to the technical field of building materials. The flexible putty of the rubber powder mainly comprising the following materials in percentage by weight: 20 to 30 percent of cement, 20 to 30 percent of quartz flour, 1.5 to 3.5 percent of re-dispersible latex powder, 0.2 to 0.8 percent of cellulose ether, 20 to 40 percent of surface modified rubber powder, 0.2 to 0.5 percent of defoaming agent, and 5 to 25 percent of calcium carbonate. The flexible putty is added into the rubber powdered which is obtained by crushing waste tires mechanically and performing surface modification, so the prepared flexible putty not only fulfills the aim of comprehensively using the waste tires but also has the characteristics of good crack resistance, high flexibility, good bonding strength and the like. Besides, the flexible putty is powdered, is convenient to package and transport, is easy to use, and can be suitable for manual batch scraping.

Description

technical field [0001] A rubber powder flexible putty and a preparation method thereof belong to the technical field of building materials. Background technique [0002] Putty is a soft paste or powder made of several kinds of base materials with bonding properties plus fillers, body pigments and a small amount of additives. It can fill holes, cracks and other defects on the building surface Make up the level to make the building surface smooth and full of texture. However, the current construction putty is easy to crack, and the main reason is that it is not flexible enough to effectively resist the tensile stress caused by the cracks in the matrix and its own internal stress. Improve the flexibility of the putty under the premise of ensuring sufficient bonding strength of the putty. Enhancing its crack resistance is the main aspect of developing new putty. [0003] With the rapid development of my country's automobile industry, the disposal of waste tires has become an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/34
Inventor 龚雁毛明富张建荣刘士荣倪忠斌陈明清
Owner JIANGNAN UNIV
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