Application of organic silicone emulsion waterproof agent in outer wall rock wool heat insulating material waterproof agent

Abstract

The invention discloses application of an organic silicone emulsion waterproof agent in an outer wall rock wool heat insulating material waterproof agent. The waterproof agent is prepared from the following raw materials in percentage by mass: 100 parts of methyl silicone oil, 5-30 parts of methyl alkoxy silicone oil, 2-10 parts of amino silicone oil, 5-10 parts of polyethylene glycol, 0.2-1.0 part of an emulsifier, 0.1-1.0 part of a sterilizing agent and 6-100 parts of distilled water or deionized water. The preparation method comprises the following steps of: proportioning 20%-40% of water and the emulsifier, stirring the solution uniformly at 60-70 DEG C, adding methyl silicone oil, methyl alkoxy silicone oil, amino silicone oil and polyethylene glycol, pre-emulsifying the mixture for 1 hour, cooling to room temperature for later use, putting the pre-emulsifying liquid in a high-speed emulsifying machine of which the rotating speed is 5000-8000r / min, adding methyl silicone oil into the pre-emulsifying liquid for high-speed emulsification for 2-3 hours, adding the rest 60%-80% of water and the sterilizing agent, performing high-speed emulsification again for 1 hour, and then obtaining a waterproof organic silicone emulsion waterproof agent for an outer wall rock wool heat insulating material, wherein the organic silicone emulsion waterproof agent is white emulsion in appearance, pH value of the 10% of water solution is 6.5-7.0, solid content is 50%-70%, good centrifugation stability is achieved, the emulsion is not layered after being centrifuged at the rotating speed of 3000r / min for 30min, good thermal stability is achieved, and the emulsion is not layered after being maintained for 4 hours at 70+ / -2 DEG C. The organic silicone emulsion waterproof agent disclosed by the invention is used for soaking and spraying the outer wall rock wool heat insulating material or added into an adhesive for manufacturing rock wool heat insulating materials.

Description

technical field [0001] The invention belongs to the field of waterproofing of inorganic building thermal insulation materials, and in particular relates to the application of an organic silicon emulsion waterproofing agent in the waterproofing agent of rock wool thermal insulation materials for external walls. Background technique [0002] Rock wool is a high-quality and efficient thermal insulation material. It has good thermal insulation, sound insulation and sound absorption properties. Compared with traditional thermal insulation materials, rock wool and its products have light bulk density, small thermal conductivity, non-combustible, fireproof and non-toxic. Toxicity, stable chemical performance, long service life and so on. Due to its good thermal insulation and fire safety performance, rock wool products are widely used in external wall insulation materials. [0003] In order to ensure the good thermal insulation performance of rock wool insulation materials for ext...

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Problems solved by technology

[0009] In addition, these patents all relate to the use of silicone aqueous emulsions in the waterproofing of building materials such as bricks, stones, concrete, mortar and cement slurry, etc., but they have many types of materials, or relatively complicated processes, and none of them involve the use of Application of waterproofing agent for wall rock wool insulation material

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