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Polymer cement waterproof material and preparation method thereof
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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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[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
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Embodiment 1
[0027] The ratio of polymer cement waterproof coating in this example is:
[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
[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 polymercement waterproof material and a preparation method thereof. The polymercement waterproof material comprises silicatecement, 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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