Nanometer heat-insulating outer wall coating and preparation method thereof

An exterior wall coating and heat insulation technology, applied in the direction of coating, etc., can solve the problems of poor heat preservation effect, long construction period, poor fire performance, etc., and achieve the effect of thin construction layer, high cost performance, and good safety and fire performance

Inactive Publication Date: 2014-05-14
BEIJING XINYUAN YONGLI INTEGRATION HOUSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a nano-insulation exterior wall paint and its preparation metho

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  • Nanometer heat-insulating outer wall coating and preparation method thereof

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preparation example Construction

[0042] The embodiment of the present invention also provides a preparation method of the nano-insulation exterior wall coating, comprising the following steps:

[0043] Step 1, preparing 20% ​​silica airgel aqueous slurry;

[0044] The specific preparation steps are: in 80 parts by mass of deionized water, add 2-3 parts of wetting agent, 2-3 parts of dispersing agent, 0.3-0.5 parts of defoaming agent, 1-2 parts of leveling agent and stir evenly, Add 20 parts of silica airgel, disperse at high speed for 20-40 minutes, then oscillate ultrasonically for 20-40 minutes, and then grind with a grinder until the particle size is less than 100nm;

[0045] Described dispersant, wetting agent, defoamer, thickener, anticorrosion agent etc. all are auxiliary agents for conventional water-based coatings, do not repeat them here;

[0046] Step 2, adding diatomaceous earth into the reaction kettle and vacuumizing, removing the vacuuming device, adding 20% ​​silica airgel water-based slurry, ...

Embodiment 1

[0049] Weigh 5kg of deionized water, 1kg of ethylene glycol, 3kg of aluminum silicate chopped fibers, 3kg of diatomaceous earth, 30kg of self-crosslinking elastic acrylic emulsion, 15kg of hollow glass microspheres, 20kg of 20% silica airgel aqueous slurry, 0.4kg dispersant 5040, 0.1kg wetting agent X405, 0.1kg multifunctional amine additive AMP-95, 0.2kg defoamer NXZ, 0.1kg preservative LXE, 0.2kg thickener TT935, 0.3kg leveling agent RM -2020.

[0050] The preparation steps are as follows:

[0051] The preparation process of 20% silica airgel water-based slurry is as follows: in 80kg deionized water, add 2kg wetting agent X405, 2kg dispersant 5040, 0.3kg defoamer NXZ, 1kg leveling agent RM- 2020 Stir evenly, add 20 parts of silica airgel, disperse at high speed for 30 minutes, then oscillate with ultrasonic waves for 30 minutes, and then grind with a blue grinder until the particle size is less than 100nm.

[0052] Add diatomaceous earth into the reaction kettle and vacuum...

Embodiment 2

[0054] The preparation steps are as follows: Weigh 7kg of deionized water, 1.5kg of ethylene glycol, 4kg of chopped aluminum silicate fibers, 4kg of diatomaceous earth, 35kg of self-crosslinking elastic acrylic emulsion, 20kg of hollow glass microspheres, and 30kg of 20% silica gas Gel water-based slurry, 0.6kg dispersant 5040, 0.15kg wetting agent X405, 0.15kg multifunctional amine additive AMP-95, 0.3kg defoamer NXZ, 0.2kg preservative LXE, 0.3kg thickener TT935, 0.4 kg leveling agent RM-2020.

[0055] The preparation process of 20% silica airgel water-based slurry is as follows: in 80kg deionized water, add 2.5kg wetting agent X405, 2.5kg dispersant 5040, 0.4kg defoamer NXZ, 1.5kg leveling agent Mix the agent RM-2020 evenly, add 20 parts of silica airgel, disperse at high speed for 30 minutes, then oscillate with ultrasonic waves for 30 minutes, and then grind with a blue mill until the particle size is less than 100nm.

[0056] Add diatomaceous earth into the reaction ket...

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Abstract

The invention provides a nanometer heat-insulating outer wall coating and a preparation method thereof. The nanometer heat-insulating outer wall coating comprises the following components in parts by weight: 5-10 parts of deionized water, 1-2 parts of ethylene glycol, 3-5 parts of fibers, 3-5 parts of diatomite, 30-40 parts of acrylic emulsions, 15-25 parts of glass microballoons, 20-40 parts of 20% silicon dioxide aerogel water-based slurry and 1.4-2.9 parts of auxiliary agents. The nanometer heat-insulating outer wall coating provided by the invention is prepared by matching multiple auxiliary agents by taking the self-crosslinking acrylic emulsions as film-forming materials and SiO2 aerogels, hollow glass microspheres and aluminum silicate chopped fibers as fillers. The coating achieves the heat insulation by adopting nanopores, and has the advantages of thin construction layer, good safety property and fire resistance, environmental friendliness, energy conservation, high performance-price ratio and the like.

Description

technical field [0001] The invention relates to the technical field of building thermal insulation paint, in particular to a nanometer thermal insulation exterior wall paint and a preparation method thereof. Background technique [0002] Energy saving, low carbon and environmental protection are important measures to realize my country's sustainable development strategy. At present, my country's building energy consumption has accounted for 1 / 3 of the total energy consumption of the society. The energy consumption per unit area is 2-3 times higher than that of developed countries with similar climate conditions. The air pollution caused by building heating is 2-5 times higher than that of developed countries. Heating energy consumption accounts for 10% of the total energy consumption in society, about 130 million tons of standard coal. my country's existing construction area reaches 40 billion m 2 , an annual construction area of ​​3 billion m 2 , of which high energy cons...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D7/12
Inventor 刘成楼安逸郭立群
Owner BEIJING XINYUAN YONGLI INTEGRATION HOUSE
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