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Polymer cement waterproof material and preparation method thereof

A waterproof material and polymer technology, applied in the field of building materials, can solve problems such as stability and curing speed

Inactive Publication Date: 2011-09-07
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of stability and curing speed in the use of current polymer cement waterproof materials, improve the compatibility of polymers and cement by adding styrene-acrylic emulsion / polyurethane emulsion, and improve the various properties of polymer cement. Performance, provide a kind of polymer cement waterproof material and preparation method thereof

Method used

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  • Polymer cement waterproof material and preparation method thereof
  • Polymer cement waterproof material and preparation method thereof
  • Polymer cement waterproof material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The ratio of polymer cement waterproof coating in this example is:

[0028] Portland cement 100 parts

[0029] Styrene acrylic emulsion and polyurethane emulsion 5 parts

[0030] 60 parts of fly ash

[0031] Polycarboxylate superplasticizer 0.5 parts

[0032] 2 parts polypropylene fiber

[0033] 60 servings of river sand

[0034] 200 parts of water

[0035] The Portland cement used is No. 42.5 ordinary Portland cement, and the fly ash is Class I fly ash.

[0036] In styrene-acrylic emulsion and polyurethane emulsion, the weight ratio of polyurethane emulsion and styrene-acrylic emulsion is 2: 10, and the solid content of polyurethane emulsion is 35%, and the solid content of styrene-acrylic emulsion is 48%,

[0037] The cement used is ordinary Portland cement 42.5 from Shandong Shanshui Cement Group Co., Ltd.; the styrene-acrylic emulsion used is Changsha Libo Chemical Co., Ltd. The BC-139 glossy styrene-acrylic architectural emulsion produced; the polyurethane e...

Embodiment 2

[0046] The ratio of polymer cement waterproof coating in this example is:

[0047] Portland cement 100 parts

[0048] 8 parts of styrene-acrylic emulsion and polyurethane emulsion

[0049] Fly ash 55 parts

[0050] Naphthalene sulfonate superplasticizer 1 part

[0051] carbon fiber 3 parts

[0052] 90 pieces of river sand

[0053] 210 parts of water

[0054] The Portland cement used is No. 42.5 ordinary Portland cement, and the fly ash is Class I fly ash.

[0055] In the styrene-acrylic emulsion / polyurethane emulsion, the weight ratio of the polyurethane emulsion to the styrene-acrylic emulsion is 1:10, the solid content of the polyurethane emulsion is 35%, and the solid content of the styrene-acrylic emulsion is 48%.

[0056] The cement used is ordinary Portland cement 42.5 from Shandong Shanshui Cement Group Co., Ltd.; the styrene-acrylic emulsion used is Changsha Libo Chemical Co., Ltd. The BC-139 glossy styrene-acrylic architectural emulsion produced; the polyuretha...

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Abstract

The invention relates to a polymer cement waterproof material and a preparation method thereof. The polymer cement waterproof material comprises silicate cement, a polyacrylate / polyurethane composite emulsion, a water reducing agent, fibers, river sands and other materials according to a certain weight proportion. The polymer cement waterproof material has the characteristics, such as high strength and easiness of adhesion to wet substrate, of cement gel materials, and also has the characteristics, such as high elasticity and good water resistance, of polymer coatings. The polymer cement waterproof material is mainly applied to waterproofing in various industrial constructions, civil constructions, bridges, tunnels, traffic transportation and other industries and fields.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a polymer cement waterproof material for building engineering and a preparation method thereof. Background technique [0002] Polymer cement waterproof coating is a kind of waterproof coating with the excellent properties of inorganic cement and organic polymer materials. The characteristics of high elasticity and good water resistance, and at the same time make up for their own shortcomings, have received extensive attention and research at home and abroad. [0003] At present, the polymer emulsions used in polymer cement coatings produced by most domestic manufacturers are polyacrylate emulsions and EVA emulsions or emulsions modified by both. EVA emulsion is a linear polymer material without active functional groups in the molecule, so it is difficult to cross-link, the coating film has poor water resistance and low elongation. Polyacrylate emulsion ha...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B26/16C04B111/27
CPCC04B2103/302C04B28/04Y02W30/91C04B14/068C04B14/386C04B16/0633C04B18/08C04B24/2641C04B24/282C04B40/0028C04B24/226
Inventor 刘冶球付宏渊刘建华康灵
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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