A slow setting self-closing polymer cement waterproof coating

A self-closing, polymer technology, applied in the field of self-closing polymer cement waterproof coatings, slow-setting self-closing polymer cement waterproof coatings, can solve the problem of self-closing polymer cement waterproof coatings with fast solidification and poor self-leveling and other issues to achieve the effect of ensuring construction safety and extending interaction

Active Publication Date: 2016-01-20
大岩(上海)建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a slow-setting self-closing polymer cement waterproof coating that solves the problems of fast solidification and poor self-leveling of the self-closing polymer cement waterproof coating. Self-closing polymer cement waterproof coating has good self-closing (self-healing), and at the same time can achieve a long setting time to cause self-leveling of the coating, becoming a good construction property with retarding function Self-closing polymer cement waterproof coating, and other properties remain good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A slow-setting self-closing polymer cement waterproof coating, prepared from the following components (by weight):

[0037] Liquid material:

[0038] 80 parts of polymer emulsion

[0039] Wetting agent 0.2 parts

[0040] 2 parts plasticizer

[0041] 0.2 part of defoamer

[0042] 15 parts of water

[0043] Powder:

[0044] 35 parts of cement

[0045] 32 parts of quartz powder

[0046] Filling 30 parts

[0047] 4 copies of active masterbatch FLW

[0048] 0.3 parts of retarder benzyl naphthalenesulfonic acid formaldehyde condensate

[0049] The preparation method of above-mentioned coating comprises the steps:

[0050] (1) Preparation of liquid material components

[0051] Add 15 parts of water, 0.2 parts of wetting agent SN-WET992, 1 part of dibutyl phthalate, 1 part of trimethylpentanediol diisobutyrate, and 0.2 parts of silicone defoamer into the stirring tank in sequence Stir for 30 minutes, then add 50 parts of ethylene-vinyl acetate emulsion and 30 parts ...

Embodiment 2

[0056] A slow-setting self-closing polymer cement waterproof coating, prepared from the following components (by weight):

[0057] Liquid material:

[0058] 80 parts of polymer emulsion

[0059] Wetting agent 0.2 parts

[0060] 2 parts plasticizer

[0061] 0.2 part of defoamer

[0062] 15 parts of water

[0063] Powder:

[0064] 35 parts of cement

[0065] 32 parts of quartz powder

[0066] Filling 30 parts

[0067] 4 copies of active masterbatch FLW

[0068] 0.6 parts of retarder polyacrylamide

[0069] The polymer emulsion is one or more mixtures of ethylene-vinyl acetate emulsion and acrylate emulsion, and the wetting agent is wetting agent W-205, wetting agent SILCOWET065 or wetting agent SN- Any one of WET992, the plasticizer is one or a mixture of dibutyl phthalate, dioctyl phthalate, trimethylpentanediol diisobutyrate , the defoamer is a silicone defoamer, the filler is calcium carbonate, talc, kaolin one or a mixture of more than one.

[0070] Prepare the abo...

Embodiment 3

[0073] A slow-setting self-closing polymer cement waterproof coating, prepared from the following components (by weight):

[0074] Liquid material:

[0075] 80 parts of polymer emulsion

[0076] Wetting agent 0.2 parts

[0077] 2 parts plasticizer

[0078] 0.2 part of defoamer

[0079] 15 parts of water

[0080] Powder:

[0081] 35 parts of cement

[0082] 32 parts of quartz powder

[0083] Filling 30 parts

[0084] 4 copies of active masterbatch FLW

[0085] 0.4 part of retarder alkyl phenyl sulfonate

[0086] The polymer emulsion is one or more mixtures of ethylene-vinyl acetate emulsion and acrylate emulsion, and the wetting agent is wetting agent W-205, wetting agent SILCOWET065 or wetting agent SN- Any one of WET992, the plasticizer is one or a mixture of dibutyl phthalate, dioctyl phthalate, trimethylpentanediol diisobutyrate , the defoamer is a silicone defoamer, the filler is calcium carbonate, talc, kaolin one or a mixture of more than one.

[0087] Prepar...

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PUM

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Abstract

The invention discloses a slow-setting self-closing polymer cement waterproof coating, which is composed of two components: powder material and liquid material. The liquid material is composed of polymer emulsion, wetting agent, plasticizer, organosilicon defoamer and Composed of water, the powder is composed of cement, quartz powder, filler, active compound, retarder, and the weight ratio of the powder and liquid is 1:1. After the two components are stirred and mixed, the waterproof coating of the present invention contains a highly dispersed retarder, which quickly emulsifies the water in the mixture to form an electric double layer, and the electric double layer can slow down the interaction between cement and water. The effect of prolonging the solidification time of the coating film ensures the safety of construction; at the same time, due to the presence of the retarder, the coating film contains more unhydrated cement, and more crystals will be formed when the coating film cracks and seeps water and strengthen autism. The self-closing property of the coating film is less than 6 hours; the initial setting time of the paint is more than 50 minutes.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a self-closing polymer cement waterproof coating, in particular to a retarding self-closing polymer cement waterproof coating. Background technique [0002] Polymer cement waterproof coating (referred to as JS waterproof coating) is a two-component coating composed of polymer emulsion (acrylate emulsion, ethylene-vinyl acetate emulsion, etc.) and cement, quartz powder, inorganic fillers and additives. Self-closing (self-healing) polymer cement waterproof coating means that under the action of water, the coating film of the coating has the property of self-healing and sealing the cracks of the coating film through physical and chemical reactions. The self-closing property is expressed by the self-sealing (self-healing) time of the cracks in the coating film under specified conditions. At present, some domestic enterprises have successfully developed related products (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00
Inventor 吴蓁赵国元张英强余金妹
Owner 大岩(上海)建筑材料有限公司
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