Elastic heat-insulation fluorocarbon coating and preparation method and use method thereof

A thermal insulation coating, fluorocarbon technology, applied in reflective/signal coatings, coatings, etc., can solve problems such as the lack of elasticity of the paint film, the discount of thermal insulation effect, the inability to resist thermal bridges, etc., and achieve excellent weather resistance and gloss retention. The effect of color, excellent weather resistance, excellent stain resistance

Inactive Publication Date: 2012-06-13
SHENZHEN GRANDLAND ENVIRONMENTAL COATING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, my country's building thermal insulation technology has developed rapidly, mainly in two aspects, one is foam board (polystyrene or polyurethane) thermal insulation technology, and the other is thermal insulation coating thermal insulation technology. However, elastic latex paint is mostly used in thermal insulation coatings, and its weather resistance is average. Although the fluorocarbon thermal insulation coatings developed by a few companies have good thermal insulation effect and weather resistance, the paint film is not elastic and cannot be used. Resist thermal bridges caused by tiny cracks common in the exterior wall coating of buildings in my country, greatly reducing the thermal insulation effect

Method used

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  • Elastic heat-insulation fluorocarbon coating and preparation method and use method thereof
  • Elastic heat-insulation fluorocarbon coating and preparation method and use method thereof
  • Elastic heat-insulation fluorocarbon coating and preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Prepare the main agent of the fluorocarbon heat-insulating coating of the present invention:

[0051] According to the weight shown in Example 1 in Table 1, each component is taken, and the preparation method is as follows:

[0052] Step 1: Dispersion of titanium dioxide: Weigh 9 kg of GK570 fluororesin, add it to the dispersion tank, then add 0.5 kg of BYK-163 dispersant, disperse at medium speed (600-800 RMP) for 3 minutes, then add BYK-066N defoamer 0.2 kg, disperse at medium speed for 5 minutes, then add 0.3kg of SD-1 anti-sedimentation agent, disperse at high speed (1200-1500RMP) for 5 minutes, then slowly add 15kg of titanium dioxide RCL-595 under low speed (about 400RMP) stirring, finish adding high speed Disperse for 15-30 minutes until the fineness is ≤20 μm to obtain titanium white paste.

[0053] Step 2: Preparation of fluorocarbon paint: Add the remaining 46kg of GK570 fluororesin, 5kg of butyl acetate, 10kg of propylene glycol methyl ether acetate and 0.3k...

Embodiment 2

[0063] According to the weight of each component in Example 2 in Table 1, repeat the method described in Example 1 to prepare the main agent, curing agent and diluent of the fluorocarbon heat-insulating coating. According to the main agent: curing agent: thinner = 105.3: 19.4: 6, mix evenly, and then carry out airless spraying construction, or according to the main agent: curing agent: thinner = 105.3: 19.4: 10, mix evenly, and then carry out roller coating construction. Both methods should ensure that the thickness of the dry paint film is above 500 μm to ensure the heat insulation performance. Under normal temperature, the paint film will dry for 24 hours, and it will be completely dry for 7 days. The performance testing results are shown in the corresponding data of Example 2 in Table 2.

Embodiment 3

[0065] According to the weight of each component in Example 3 in Table 1, repeat the method described in Example 1 to prepare the main ingredient, curing agent and diluent of the elastic fluorocarbon heat-insulating coating. Mix uniformly according to main paint: curing agent: thinner = 117.4: 27.4: 5, and then carry out airless spraying construction, or according to main agent: curing agent: thinner = 117.4: 27.4: 12, then carry out roller coating construction. Both methods should ensure that the thickness of the dry paint film is above 500 μm to ensure the heat insulation performance. Under normal temperature, the paint film can dry for 24 hours and completely dry for 7 days. The performance testing results are shown in the corresponding data of Example 3 in Table 2.

[0066] Table II

[0067]

[0068]

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Abstract

An elastic heat-insulation fluorocarbon coating consists of a host and curing agent. The host is prepared by the following components, by weight, 55 to 65 parts of fluororesin, 0.5 to 1.5 parts of dispersant, 0.2 to 0.4 part of defoamer, 0.3 to 0.5 part of anti-settling agent, 0.3 to 0.5 part of flatting agent, 15 to 20 parts of titanium white, 4 to 8 parts of hollow glass microballs, 1 to 1.5 parts of hollow macromolecular polymer and 15 to 20 parts of mixed solvent. The curing agent is manufactured by the following components, by weight, 90 parts of E405 to 80T, 5 parts of butyl acetate and 5 parts of propylene glycol methyl ether acetate. The weight proportion of the host and the curing agent can be calculated according to the hydroxyl value of the fluororesin and the NCO (isocyanate) content of the curing agent, namely OH/NCO=1:(1.05 to 1.15). The elastic heat-insulation fluorocarbon coating has the advantages of excellent weatherability, stain resistance, washability, decoration performance, excellent normal-temperature and low-temperature elasticity, capability of resisting to fine fissures, improved heat insulation effect and benefits to transport and settlement.

Description

technical field [0001] The invention relates to a two-component elastic fluorocarbon heat-insulating paint for building exterior walls, a preparation method and a use method thereof. Background technique [0002] In recent years, my country's building thermal insulation technology has developed rapidly, mainly in two aspects, one is foam board (polystyrene or polyurethane) thermal insulation technology, and the other is thermal insulation coating thermal insulation technology. However, elastic latex paint is mostly used in thermal insulation coatings, and its weather resistance is average. Although the fluorocarbon thermal insulation coatings developed by a few companies have good thermal insulation effect and weather resistance, the paint film is not elastic and cannot be used. Resist thermal bridges caused by tiny cracks common in the exterior wall coating of buildings in our country, which greatly reduces the thermal insulation effect. Contents of the invention [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12C09D5/33C09D7/14C09D7/80
Inventor 胡基如
Owner SHENZHEN GRANDLAND ENVIRONMENTAL COATING CO LTD
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