Unlock instant, AI-driven research and patent intelligence for your innovation.

Vae cement waterproof coating with self-leveling performance for slope surface and its preparation

A waterproof coating and self-leveling technology, applied in the direction of coating, etc., can solve the problems of unsuitable surface spraying, reduced service life, high viscosity of coating, etc., and achieve good waterproof and dust suppression effect, long service life and good ductility

Inactive Publication Date: 2017-08-01
DONGHUA UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of polymer cement waterproof coating has the performance of fast drying at room temperature, but this kind of coating has high viscosity and high solid content in the coating, so it is not suitable for surface spraying
At the same time, during the curing process, due to the large shrinkage of the cement, the residual stress of the cured coating is relatively large. After a period of use, the paint film may crack and reduce the service life.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of VAE cement waterproof coating with self-leveling performance for slope surface, including liquid material and powder material, described liquid material includes: VAE emulsion, water, dispersant, defoamer, wetting agent, film-forming aid , antifreeze, leveling agent, hydrophobic agent, thickener. The powder includes: cement, short fibers, and fillers; the mass ratio of the liquid to the powder is 1:0.2. The filler is talcum powder and ground calcium carbonate (500 mesh), and the film-forming aid is alcohol ester dodecane and ethylene glycol ether. Described cement is 500 orders. The filler is 500 mesh. The short fibers are polyester fibers with a length of 1 mm.

[0023] The preparation method of the VAE cement waterproof coating with self-leveling performance for the slope surface is: preparing liquid material and powder material, and the preparation step of the liquid material is: at a stirring rate of 2500rpm, 25 wt. Parts, 3 parts by weight of wetting ...

Embodiment 2

[0026] A VAE cement waterproof coating with self-leveling performance for slope surfaces, including liquid material and powder material, the liquid material includes: 95 parts by weight of VAE emulsion; 5 parts by weight of pure acrylic emulsion; 20 parts by weight of water; dispersant 3 parts by weight; 3 parts by weight of defoaming agent; 3 parts by weight of wetting agent; 6 parts by weight of film-forming aid; 2 parts by weight of antifreeze; 8 parts by weight of leveling agent; 3 parts by weight of hydrophobic agent; share. The powder includes: 7 parts by weight of cement; 1 part by weight of short fiber; 7 parts by weight of filler; the mass ratio of the liquid material to the powder material is: 1:0.2. The filler is heavy calcium carbonate (500 mesh), and the film-forming aids are alcohol ester dodecane and ethylene glycol ether. Described cement is 500 orders. The filler is 500 mesh. The short fibers are polyester fibers with a length of 1 mm.

[0027] The prepara...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a self-leveling VAE (vinyl acetate-ethylene) cement waterproof paint for slope surfaces and preparation thereof. The self-leveling VAE cement waterproof paint for slope surfaces is characterized by comprising a liquid and a powder. The liquid comprises the following components in parts by weight: 100 parts of VAE emulsion or composite emulsion, 20-80 parts of water, 1-6 parts of dispersing agent, 1-5 parts of defoaming agent, 1-5 parts of wetting agent, 5-10 parts of film-forming assistant, 2-10 parts of antifreezing agent, 2-20 parts of leveling agent, 2-10 parts of hydrophobing agent and 5-15 parts of thickener. The powder comprises the following components in parts by weight: 4-15 parts of cement, 0.5-3 parts of short fiber and 4-20 parts of filler. The mass ratio of the liquid to the powder is 1:(0.15-0.4). The waterproof paint can be sprayed to the slope surface, and has favorable ductility and self-leveling performance. The coated film has the advantages of long service life, high adhesive force and favorable waterproof and dust-suppression effects, and does not have requirements for the slope surface topography.

Description

technical field [0001] The invention relates to a VAE cement waterproof coating with self-leveling performance for slope surfaces, belonging to the technical field of waterproof coatings. Background technique [0002] Large outdoor coal piles, mine piles, soil piles and waste accumulations have caused serious loss and air pollution due to rainwater washing and strong wind blowing. It is of great economic and environmental significance to take effective rain-proof and dust-suppression measures for open-air accumulations. [0003] Traditional polymer cement-based waterproof coatings are mainly used on flat base surfaces in the construction industry, which have high requirements for the strength of the coatings, and due to their high viscosity, they are not suitable for direct spraying construction. Open-air accumulations have uneven slopes, and there are pores and are not firm. Traditional polymer cement waterproof coatings cannot be directly used on outdoor slope surfaces. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09D131/04C09D123/08C09D133/00C09D7/12
CPCC08L2205/03C08L2205/16C09D131/04C08L67/02C08K13/02C08K3/34C08K2003/265C08K5/06C08L33/00
Inventor 杜卫平陈惠芳曹静王迪贾凌云袁孟雨汪山献松
Owner DONGHUA UNIV