Colored solar heat reflection and heat-insulation coating, as well as preparation method thereof

A technology of reflective thermal insulation coating and solar heat, applied in reflective/signal coatings, multi-color effect coatings, coatings, etc., can solve the problems of high cost of imported coatings, low cost performance, affecting market promotion, etc., and achieve good market promotion prospects , various colors, the effect of reducing health hazards

Inactive Publication Date: 2015-06-03
BEIJING BUILDING MATERIALS ACADEMY OF SCI RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing solar heat-reflecting and heat-insulating coatings are white, and 80% of the exterior wall decoration materials in my country are painted with colored ordinary coatings. A single white solar heat-reflecting coating cannot meet the needs of the diversity of building decoration colors in our country
Domestic color solar heat reflective coatings are still in the experimental research stage, limited to the research of light colors such as sea gray and medium gray; the cost of imported coatings is high, about 300-500 yuan per kilogram, and the cost performance is low, which greatly affects the product. Market promotion, so the domestic market urgently needs reflective heat insulation coatings with excellent reflective heat insulation performance, full system color selection, and simple construction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A colored solar heat-reflecting heat-insulating coating, the raw materials for preparing the coating include polymer emulsion, titanium dioxide, functional fillers, infrared reflective pigments, kaolin, heavy calcium carbonate, dispersant, wetting agent, defoamer, Thickener, film-forming aid, preservative and water, the weight and number ratio of each component is:

[0044] Polymer emulsion 20-40

[0045] Titanium dioxide 2-20

[0046] Functional filler 2-15

[0047] Infrared reflective pigment 3-20

[0048] Kaolin 5-15

[0049] Ground calcium carbonate 5-20

[0050] Dispersant 1-10

[0051] Wetting agent 0.1-5

[0052] Defoamer 0.1-3

[0053] Thickener 0.3-5

[0054] Coalescent 1-15

[0055] Preservatives 0.05-2

[0056] water 5-40

[0057] The polymer emulsion is acrylate emulsion, styrene-acrylic emulsion, silicone modified acrylate emulsion.

[0058] The titanium dioxide is rutile titanium dioxide.

[0059] The functional filler is one or both of hollow...

Embodiment 2

[0075] This embodiment is a preferred solution based on Embodiment 1. The ratio of raw materials by weight of the colored solar heat reflective heat-insulating coating described in this embodiment is:

[0076] water 10

[0077] Dispersant Sodium polycarboxylate 5

[0078] Wetting agent Octylphenol polyoxyethylene ether 0.5

[0079] Silicone defoamer 1.0

[0080] Preservative Isothiazolinone 0.5

[0081] Rutile Titanium Dioxide 8

[0082] Iron Chrome Black 1

[0083] Kaolin 1250 mesh 10

[0084] Heavy calcium carbonate 700 mesh 15

[0085] Pure acrylic emulsion 30

[0086] Coalescing agent Lauryl alcohol ester 5

[0087] Silicone defoamer 1.0

[0088] Glass beads 10

[0089] Polyurethane thickener 2.0;

[0090] After the ratio of raw materials is selected, the specific production process is carried out, including the following steps:

[0091] First, add water, dispersant, wetting agent, preservative and half of the above-mentioned defoamer into the paint mixing tank...

Embodiment 3

[0098] This embodiment is a preferred solution based on Embodiment 1. The ratio of raw materials by weight of the colored solar heat reflective heat-insulating coating described in this embodiment is:

[0099] water 8.3

[0100] Dispersant Ammonium polycarboxylate 7

[0101] Wetting agent Fatty alcohol polyoxyethylene ether 1

[0102] Defoamer polyether modified silicone 0.5

[0103] Preservative isothiazolinone 0.7

[0104] Rutile titanium dioxide 10

[0105] Titanium nickel yellow 5

[0106] Kaolin 1250 mesh 5

[0107] Heavy calcium carbonate 1250 mesh 10

[0108] Elastic Lotion 40

[0109] Coalescing agent Ethylene glycol 3

[0110] Defoamer Polyether modified silicone 1.0

[0111] Ceramic Beads 7

[0112] Alkali-swellable thickener 1.5;

[0113] After the ratio of raw materials is selected, the specific production process is carried out:

[0114] First, add water, dispersant, wetting agent, preservative and half of the above-mentioned defoamer into the paint mi...

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Abstract

The invention discloses a colored solar heat reflection and heat-insulation coating. The coating is prepared from the following raw materials: polymer emulsion, titanium dioxide, functional fillers, an infrared reflection pigment, kaolin, ground calcium carbonate, a dispersing agent, a wetting agent, a defoaming agent, a thickening agent, a film-forming additive, a preservative, and water. The colored solar heat reflection and heat-insulation coating provided by the invention has the advantages that a coating film with a high reflectivity is prepared through adoption of the components, addition of the functional fillers (glass microbeads, ceramic microbeads and floating beads) which are large in refraction coefficient and high in scattering capability and reflectivity, as well as the pigment which is large in infrared reflection ratio, and application of film-forming matters and the film-forming additive, so that the coating achieves good heat-insulation performance, multiple selectable colors, excellent elasticity, high stain resistance, as well as large solar and near-infrared reflection ratios.

Description

technical field [0001] The invention relates to the technical field of colored coatings for buildings, in particular to a colored solar heat-reflecting heat-insulating coating and a preparation method thereof. Background technique [0002] In recent years, with the implementation of national policies promoting building energy conservation and environmental protection, the energy saving and consumption reduction of buildings is particularly important. Many provinces and cities in China have promulgated and implemented energy-saving regulations for industrial and civil buildings. Therefore, the research and development of solar heat reflective and heat-insulating coatings for buildings has significant economic, environmental and social benefits. The use of coatings with heat insulation function on the surface of buildings has dual functions of decoration and heat insulation, and belongs to functional coatings. [0003] Solar heat reflective heat insulation coatings are made o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D125/14C09D5/33C09D7/12
CPCC09D133/04C08L2205/035C09D5/004C09D5/29C09D7/43C09D7/61C09D7/63C09D7/65C09D7/69C09D7/70C09D125/14C08L75/04C08L71/02C08K13/04C08K7/20C08K2003/2241C08K3/346C08K2003/265C08L83/12C08K7/18C08L1/284C08L91/00C08K13/02C08K2003/2272
Inventor 路国忠何金太赵炜璇闫晶
Owner BEIJING BUILDING MATERIALS ACADEMY OF SCI RES
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