Dry-type heat-insulating waterproof coating

A waterproof coating and dry powder technology, applied in the coating field, can solve the problems of complex production process, easy aging of the coating, easy freezing and cracking, etc., and achieve the effects of high sunlight reflectivity, good waterproof performance, and good heat insulation and waterproofing.

Inactive Publication Date: 2010-02-17
吕海涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the coatings used for roofs and exterior walls are mainly oil-based coatings or emulsion coatings, but these two types of coatings are not conducive to environmental protection, complicated construction, difficult coating, difficult transportation and storage of such liquid coatings, and complicated production and preparation processes , high cost; the coating is easy to age, the heat insulation method is single, the heat insulation effect is not good, and the strength and weather resistance are not good, and it is easy to freeze and crack in winter
[0003] In recent years, there have been reports on methods for reducing the temperature in buildings by using heat-insulating coatings. For example, Chinese patent document CN 1204213 discloses a heat-insulating and waterproof coating, in which the polyvinyl formal adhesive needs to be processed by a special and complicated process. Obtained, and the production cost is high; CN 1167757 discloses a heat-insulating and waterproof coating comprising polyvinyl alcohol, precipitated calcium carbonate, expanded perlite, glycol, formaldehyde, etc., but it contains VOC component formaldehyde, and The production process is more complicated
Most of the existing thermal insulation and waterproof coatings are in liquid or fluid state, which is not only unfavorable for transportation and storage, but also tends to condense or agglomerate during storage, resulting in product deterioration or inconvenience in construction, and ultimately affects its thermal insulation and waterproof performance.
At present, there are no reports or applications of dry powder architectural coatings with heat insulation and waterproof functions at the same time.

Method used

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  • Dry-type heat-insulating waterproof coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Embodiment 1 A dry powder heat-insulating and waterproof coating is made of the following raw materials in weight percent:

[0062] SAE latex powder 1.5%, EVA latex powder 4%, hollow glass microspheres 10%, white quartz sand 10%, sepiolite powder 10%, diatomite powder 1%, attapulgite powder 4.5%, mica powder 8%, Heavy calcium powder 10%, light calcium powder 5%, rutile titanium dioxide 0.5%, lithopone 1%, talcum powder 10%, white cement 24%, additive tributyl phosphate 0.5%.

[0063] When preparing the above-mentioned dry powder heat-insulating and waterproof coating, first mix white quartz sand, sepiolite powder, diatomite, attapulgite, mica, heavy calcium powder, light calcium powder, rutile titanium dioxide, lithopone, talcum powder, white The cement is mixed and ground to an average particle size of ≥250 mesh, then sieved, then redispersible latex powder, hollow glass microspheres and additives are added and mixed evenly.

Embodiment 2

[0064] Embodiment 2 A dry powder heat-insulating and waterproof coating is made of the following raw materials in weight percent:

[0065] SAE latex powder 1%, hollow glass microspheres 15%, white quartz sand 8%, sepiolite powder 10%, diatomite powder 2%, attapulgite powder 3%, mica powder 5%, heavy calcium powder 14%, Light calcium powder 5%, rutile titanium dioxide 1%, talcum powder 10%, white cement 25%, organic silicon powder 0.3%, ultra-fine active dicyandiamide 0.7%.

[0066] The preparation method is basically the same as in Example 1.

Embodiment 3

[0067] Embodiment 3 A dry powder heat-insulating and waterproof coating is made of the following raw materials in weight percentage:

[0068] EVA latex powder 4%, hollow glass microspheres 14%, sepiolite powder 14%, diatomite powder 4%, attapulgite powder 2%, mica powder 8%, heavy calcium powder 11.2%, light calcium powder 10%, 1.5% rutile titanium dioxide, 0.5% lithopone, 10% talcum powder, 20% white cement, 0.8% ultra-fine active dicyandiamide.

[0069] The preparation method is basically the same as in Example 1.

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Abstract

The invention relates to a dry-type heat-insulating waterproof coating which comprises the following raw materials in percentage by weight: 0-5.5 dispersible polymer powder, 10-20 hollow filling beads, 5-20 sepiolite powder, 5-10 mica powder, 5-30 heavy calcium carbonate powder, 5-15 light calcium carbonate powder, 0.5-1.5 rutile titanium dioxide, 10-20 talc powder and 10-40 white cement. A coat formed by the coating of the invention has favorable heat-insulating waterproof effect (lowers indoor temperature by 4-20 DEG C) and excellent flexibility, impermeability, weathering resistance and bonding strength to a substrate as well as high strength, good brightness, uniform luster, smooth and tender touch feeling, waterproof washing and rubbing, and the like. The dry-type coating has the advantages of simple production process, convenient transportation, long storage time, convenient construction, and the like, no toxicity or pollution, environment-friendly trend suitability, low cost, low VOC and high performance, thereby becoming a new-generation building coating product.

Description

technical field [0001] The invention relates to a coating, in particular to a multifunctional dry powder heat-insulating and waterproof coating. Background technique [0002] The energy crisis and environmental pollution are becoming more and more serious, and people's awareness of energy conservation and environmental protection has been continuously enhanced. In particular, building energy use is widely involved and consumes a lot of energy, which has been paid more and more attention. At present, the coatings used for roofs and exterior walls are mainly oil-based coatings or emulsion coatings, but these two types of coatings are not conducive to environmental protection, complicated construction, difficult coating, difficult transportation and storage of such liquid coatings, and complicated production and preparation processes , high cost; the coating is easy to age, the heat insulation method is single, the heat insulation effect is not good, and the strength and weathe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/27
CPCC04B2111/802C04B28/02C04B2111/00293C04B2111/28C04B2111/00482C04B40/0608C04B2111/27C04B28/10C04B2111/2038C04B2111/10C04B2111/00336
Inventor 吕海涛
Owner 吕海涛
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