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Water-repellent light weight cellular concrete panel, method of producing the aforesaid, and water-based organopolysiloxane emulsion

A technology of porous concrete and polysiloxane, applied in transportation and packaging, other household appliances, building components, etc., can solve problems such as nozzle blockage and pipe blockage, and achieve excellent water resistance and excellent short-term water resistance

Inactive Publication Date: 2013-09-25
DOW CORNING TORAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of spraying (i.e. typically with spray equipment), this leads to nozzle clogging and pipe clogging problems due to film formation in the sprayer's nozzle and piping

Method used

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  • Water-repellent light weight cellular concrete panel, method of producing the aforesaid, and water-based organopolysiloxane emulsion
  • Water-repellent light weight cellular concrete panel, method of producing the aforesaid, and water-based organopolysiloxane emulsion
  • Water-repellent light weight cellular concrete panel, method of producing the aforesaid, and water-based organopolysiloxane emulsion

Examples

Experimental program
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Embodiment

[0099] Examples and comparative examples of the present invention are described below.

[0100] Water-based emulsions of exemplary non-film-forming amino-modified dimethylpolysiloxanes (Examples 1 and 2), comparative film-forming amino-modified dimethylpolysiloxanes were evaluated. Emulsion (Comparative Example 1, Comparative Example 2), water-based emulsion of non-film-forming epoxy-modified dimethyl polysiloxane (Comparative Example 3) and alkyltrialkoxysilane / siloxane mixture The following properties of the water-based emulsion (Comparative Example 4): film-forming behavior of the prepared emulsion, film-forming behavior of the emulsion diluted with water, obtained by water-repellent treatment by spraying the surface of the water-containing lightweight porous concrete slab just after production of the slab The water absorption prevention ability of the board, the drying behavior (degree of reduction in water content) when the water-repellent-treated board is placed indoors ...

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Abstract

A water-repellent lightweight cellular concrete panel having on its surface a water-repellent treatment layer provided by a water-based emulsion of a non-film-forming amino-modified organopolysiloxane. A water-based emulsion of a non-film-forming amino-modified organopolysiloxane is applied, by a spray method or a roller coating method, on the surface of lightweight cellular concrete panel and drying is carried out. An O / W water-based emulsion of a non-film-forming amino-modified organopolysiloxane that has an amine equivalent weight of 500 to 100,000 gram / mol and a viscosity at 25° C. of 50 to 1,000,000 mPa·s.

Description

technical field [0001] The present invention relates to a waterproof lightweight porous concrete slab, especially for short-term storage, having on its surface a water-repellent treatment layer composed of a non-film-forming amino-modified organic-based polymer Water-based emulsions of siloxanes are provided, relating to the production method of the above-mentioned concrete slabs and to water-based emulsions of non-film-forming amino-modified organopolysiloxanes, wherein the emulsions are used to give the surface of lightweight porous concrete slabs Provided with water repellent treatment. Background technique [0002] Lightweight cellular concrete slabs have hitherto been widely used as building materials, for example, for facades, partition walls, floors, roofs, etc., because these slabs have, among other things, the advantages of being lightweight, fireproof, thermally insulating and installable. Granular siliceous and calcareous materials are the basic components of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/08C04B41/64
CPCC04B41/4961C04B41/64C08G77/26E04C2/049C04B41/009C09D183/08Y10T428/249991C04B41/502C04B2103/40C04B38/00C04B28/14C04B28/02
Inventor 神初宪治枳梖正圭长绳努
Owner DOW CORNING TORAY CO LTD