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Aqueous epoxy modified acrylic heat-reflecting thermo-insulating coating

An epoxy modification, acrylic emulsion technology, applied in coatings and other directions, can solve the problems of not reaching the industrialization stage, coating storage stability, unsatisfactory heat reflection and heat insulation effect of construction coatings, environmental pollution, etc. The effect of excellent heat reflection and heat insulation performance, excellent weather resistance and good weather resistance

Inactive Publication Date: 2003-08-06
MARINE CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this coating is that the mixed solution of ether alcohol and water is used as the diluent, and there are still environmental pollution problems.
There have been reports on the research of water-based heat-reflective coatings abroad, but the storage stability, workability, heat reflection and heat insulation effects of coatings are not ideal, and have not reached the stage of industrialization.
There is no report of water-based heat reflective coating in China

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The synthetic method of embodiment 1 epoxy-modified acrylic acid emulsion:

[0037] (1) in 1 # In the reaction vessel, add epoxy resin and solvent according to the formula amount, start stirring, and ventilate nitrogen, and the liter

[0038] Warm to 110--130°C and keep warm for 2--3 hours to dissolve the epoxy resin.

[0039] (2) Evenly drop the first batch of mixed monomers (including initiator) into 1 # Reaction vessel, dropwise addition time

[0040] 0.5-1.0h, keep warm for 1.0-1.5h.

[0041] (3) Evenly drop the second batch of mixed monomers (including initiator) into 1 # Reaction vessel, dropwise addition time

[0042] 0.5-1.0h, keep warm for 1.5-2.0h.

[0043] (4) Add the demineralized water and neutralizer of the formula to 2 # In the reaction vessel, stir evenly, mix 1 # reaction

[0044] The material in the container is transferred to 2 # In the reaction vessel, stir and emulsify for 1--2h to obtain epoxy-modified propylene

[0045] sou...

Embodiment 2

[0049] Example 2 Preparation method of heat-reflective and heat-insulating coating: (1) Add metered demineralized water, additives, and part of epoxy-modified acrylic emulsion into the slurry mixing container, and stir evenly with an adjustable high-speed disperser. (2) Add pigments and fillers and disperse to the required fineness at high speed. (3) Add hollow glass microspheres or (and) power plant floating beads to disperse evenly at high speed; (4) Add part of thickener and stir well to obtain color paste. (5) Add the color paste and the remaining epoxy-modified acrylic emulsion into the paint mixing container, and stir well. (6) Add the remaining thickener and stir well. (7) Add a pH regulator to adjust the pH value to 8-10. (8) Filtration, packaging, and finished product. The formulation examples of the heat-reflecting and heat-insulating coating prepared by the above method are shown in Table 3, and the properties of the coating are shown in Table 4.

[0050] ...

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PUM

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Abstract

The present invention relates to an epoxy modified polyacrylic emulsion and its preparation, and aqueous heat-reflected heat-insualting paint using said emulsion as base material. Said invented heat-reflected heat-insulating paint is made up by using epoxy modified polyacrylic emulsion as base material, and mixing it with pigment, filling material, hollow glass bead, electric power plant float bead and adjuvant through the processes of grinding and dispersion. Said paint is no-toxic fire-resistant, strong in adhersion, good in pliability and heat-insulating effect, and has no pollution to environment, so that it has extensive application.

Description

technical field [0001] The invention relates to a formula and a preparation process of a water-based high-performance heat-reflecting heat-insulating paint. It belongs to the technical field of chemical composition. Background technique [0002] Energy saving and environmental protection are the themes of new material development in this century. Traditional coatings are mostly solvent-based, which contain a large amount of organic solvents, and are often diluted with organic solvents during use. These solvents evaporate into the atmosphere after construction, which is harmful to human health and pollutes the environment. There is also a fire hazard. With the gradual enhancement of people's awareness of environmental protection and the increasingly stringent environmental protection laws and regulations around the world, it is the general trend to develop environmentally friendly coatings to replace solvent-based coatings. [0003] Ordinary coatings, especially dark-colore...

Claims

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Application Information

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IPC IPC(8): C08F283/10C09D151/08
Inventor 侯佩民郭焱刘福长柳问林徐元浩万众初广成
Owner MARINE CHEM RES INST
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