Novel environment-friendly heat insulating coating and preparation method thereof

A thermal insulation coating and environmental protection technology, applied in epoxy resin coatings, alkali metal silicate coatings, coatings, etc., can solve the problems of high cost and development limitations of vacuum ceramic microspheres, and reduce the poor thermal insulation effect, Inexpensive and resource-rich effects

Inactive Publication Date: 2010-04-21
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with cheap inorganic minerals, the cost of vacuum ceramic microspheres is too high, which limits the development of this type of coating.

Method used

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  • Novel environment-friendly heat insulating coating and preparation method thereof
  • Novel environment-friendly heat insulating coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1): Grind the expanded vermiculite with a sand mill for 1 hour, vacuum filter it, and grind it with a mortar after drying. Pass the ground expanded vermiculite through a 200-mesh sieve, and then place it in a blast oven at 100°C for 4 hours. Desiccator preservation, spare;

[0029] (2): Dry the sepiolite at 100°C for 4 hours, store in a desiccator, and set aside;

[0030] (3): Dry the hollow microspheres at 100°C for 4 hours, store in a desiccator, and set aside;

[0031] (4): Weigh 44g of expanded vermiculite, 20g of sepiolite, and 20g of hollow microspheres prepared in step (1), step (2), and step (3) respectively, and mix them well to obtain Group A Minute;

[0032] (5): Add 200g of silicone-modified acrylic resin, 100g of water, 2g of wetting agent, 5g of dispersant, 2g of defoaming agent, 2g of silane coupling agent, and 5g of other additives in order, and mix well to obtain B component;

[0033] (6): Fully mix components A and B, stir at room temperature for ...

Embodiment 2

[0037] (1): Grind the expanded vermiculite with a sand mill for 2 hours, vacuum filter, dry and grind in a mortar, pass the ground expanded vermiculite through a 400-mesh sieve, and then dry it in a blast oven at 105°C for 4.5 hours , stored in a desiccator, for use;

[0038] (2): Dry the sepiolite at 105°C for 4.5 hours, store in a desiccator, and set aside;

[0039] (3): Dry the hollow microspheres at 105°C for 4.5 hours, store in a desiccator, and set aside;

[0040] (4): Weigh 40g of expanded vermiculite, 30g of sepiolite, and 30g of hollow microspheres prepared in step (1), step (2), and step (3) respectively, and mix them well to obtain Group A Minute;

[0041] (5): Add 200g of silicone-modified acrylic resin, 100g of water, 3g of wetting agent, 6g of dispersant, 3g of defoaming agent, 3g of silane coupling agent, and 5g of other additives in order, and mix well to obtain B component;

[0042] (6): Fully mix components A and B, stir at room temperature for 1 hour, an...

Embodiment 3

[0046] (1): Grind the expanded vermiculite with a sand mill for 1 hour, vacuum filter it, and grind it in a mortar after drying. Pass the ground expanded vermiculite through a 400-mesh sieve, and then dry it in a blast oven at 105°C for 4.5 hours. , stored in a desiccator, for use;

[0047] (2): Dry the sepiolite at 105°C for 4.5 hours, store in a desiccator, and set aside;

[0048] (3): Dry the hollow microspheres at 105°C for 4.5 hours, store in a desiccator, and set aside;

[0049] (4): Weigh 40g of expanded vermiculite, 20g of sepiolite, and 30g of hollow microspheres prepared in step (1), step (2), and step (3) respectively, and mix them well to obtain Group A Minute;

[0050] (5): Add 120g of styrene-acrylic emulsion, 100g of water, 2g of wetting agent, 5g of dispersant, 4g of defoaming agent, 2g of silane coupling agent, and 5g of other additives in order, and mix evenly to obtain component B;

[0051] (6): Fully mix components A and B, stir at room temperature for 1...

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Abstract

The invention relates to a novel environment-friendly heat insulating coating and a preparation method thereof. The novel environment-friendly heat insulating coating comprises the following components in percentage by weight: 10 to 50 percent of film forming matter, 1 to 3 percent of expanded vermiculite, 5 to 25 percent of meerschaum, 1 to 20 percent of hollow microspheres, 0.5 to 5 percent of wetting agent, 0.5 to 5 percent of dispersing agent, 0.5 to 5 percent of defoaming agent, 0.5 to 5 percent of silane coupling agent, 1 to 10 percent of auxiliary agents, and 10 to 50 percent of solvent. The preparation method comprises the following steps of: grinding, vacuum filtrating, drying, grinding, screening and drying the expanded vermiculite, and then evenly mixing the dried expanded vermiculite with the dried meerschaum and the hollow microspheres to form a component A; mixing the film forming matter, the solvent, the wetting agent, the dispersing agent, the defoaming agent, the silane coupling agent and other auxiliary agents to obtain a component B; and evenly mixing the components A and B, and defoaming the mixture to obtain the heat insulating coating of the invention. The prepared insulating coating is coated on the surface of a working surface, is cured at the normal temperature and completely dried to achieve the effects of heat preservation and heat insulation.

Description

technical field [0001] The invention belongs to the field of heat insulation material preparation, and in particular relates to a novel environment-friendly heat insulation coating and a preparation method thereof. Background technique [0002] Existing thermal insulation coatings generally use silicate materials such as asbestos, aluminum silicate fibers, and expanded perlite fillers as the main body, use water as the dispersant, add binders, and make pastes through loosening and stirring slurry. When in use, choose an appropriate method to coat the surface of the working surface according to the specific situation, and play the role of heat insulation. However, asbestos is used as a filler. When making and using this type of paint, the formed asbestos dust and volatilized particles are easily absorbed by people and difficult to excrete. This situation is likely to lead to major diseases such as lung cancer and skin cancer in the human body. Therefore, the country has ban...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D125/14C09D133/04C09D163/00C09D1/04C09D7/12C09D5/00
Inventor 杜红波毛志平张琳萍徐红诸佩菊单苗苗黄杨刘洪磊鄢田婷王天靖
Owner DONGHUA UNIV
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