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Preparation method of cool and sunlight-reflective waterproof coating for roof and outer wall

A waterproof coating, sunlight technology, applied in the direction of reflection/signal coating, coating, sustainable manufacturing/processing, etc. The effect of emissivity, improving hiding power, and enhancing reflection ratio

Inactive Publication Date: 2016-07-06
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention solves the problem that when the roof and exterior wall of the existing building are exposed to strong solar heat radiation, the surface and indoor temperature will rise sharply, resulting in an increase in the ambient temperature, reducing the comfort of the living environment and increasing the power consumption of air conditioning and refrigeration. At the same time, it leads to accelerated corrosion and aging of the original roof and exterior wall waterproof materials, making it unable to maintain the original mechanical and chemical properties, thereby accelerating failure and causing leakage problems in the roof and exterior walls, and providing a cool roof and exterior wall Preparation method of sunlight reflective waterproof coating

Method used

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Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0017] Embodiment 1: In this embodiment, a method for preparing a cool sunlight reflective waterproof coating for roof exterior walls is specifically carried out in accordance with the following steps:

[0018] 1. Weigh 16%~19% deionized water, 0.5%~0.8% dispersant, 0.5%~1.0% defoamer A, 19%~24% filler, 22%~27% nano powder, 23%-28% emulsion, 8%-10% covering polymer, 0.2%-0.7% defoamer B, 0.3%-0.7% film-forming aid, 0.3%-0.6% anti-mold additive, 0.5%-0.8 % pH adjuster and balance thickener premix;

[0019] 2. Add the deionized water and dispersant weighed in step 1 into the high-shear stirring disperser, control the linear speed to 3.5m / s~5.0m / s, stir, then add defoamer A, stir until Defoamer A is completely dissolved, add filler, and adjust the stirring line speed to 20-25m / s, pH to 7.8-8.2, stir for 15-25min, add nano-powder, control the stirring line speed to 20-25m / s, disperse Until the slurry fineness reaches 10-30 μm, then adjust the rotational speed and linear velocity...

specific Embodiment approach 2

[0021] Embodiment 2: This embodiment differs from Embodiment 1 in that the deionized water in step 1 complies with the third-grade water standard specified in GB / T6682-2008. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0022] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the dispersant in step 1 is Rohm and Haas OrotanTM1850E. Others are the same as in the first or second embodiment.

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Abstract

The invention provides a preparation method of a cool and sunlight-reflective waterproof coating for a roof and an outer wall and relates to a preparation method of waterproof coatings. The preparation method aims to solve the problems that the roof and the outer wall of an existing building are exposed to intense solar radiation, the surface and indoor temperature is raised sharply, accordingly the surrounding environmental temperature is raised, living environment comfort is lowered, power consumption for air conditioning refrigeration is increased, meanwhile, original waterproof materials on the roof and the outer wall are accelerated in corrosion and aging, original mechanical and chemical performance of the waterproof materials cannot be maintained, failure of efficacy is accelerated, and thus the roof and the outer wall leak. The preparation method includes the steps of 1, weighing raw materials; 2, preparing slurry; 3, preparing the waterproof coating. The prepared waterproof coating is free of formaldehyde and extra low in volatile organic compound, VOC is less than 50 g / L, the indoor coating use standard is reached, and the coating is an energy-saving and environmentally-friendly coating and used for industrial production.

Description

technical field [0001] The invention relates to a preparation method of waterproof paint. Background technique [0002] Building waterproof engineering is a sub-project to ensure that the structure of buildings (structures) is not invaded by water and the internal space is not harmed by water. Building waterproofing plays an important role in the whole construction project. It involves the basement, wall, floor, wall, roof and many other parts of the building (structure). Its function is to prevent the erosion of rainwater, production and domestic water leakage within the design durability period of the building (structure), to ensure that the building structure and internal space are not defaced, and to provide people with a comfortable and safe living space environment. [0003] House roof waterproofing in building waterproofing engineering is a systematic project, which is related to the normal operation of building functions and the service life of buildings. Over the...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D7/12C09D5/33
CPCC08L2205/02C08L2205/03C09D5/004C09D7/61C09D7/63C09D7/70C09D133/00C08L33/04C08L1/284C08K13/04C08K7/28C08K2003/265C08K2003/2241C08K5/103Y02P20/10
Inventor 成夙吴征曾涛
Owner HARBIN UNIV OF SCI & TECH
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