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Ultraviolet-resistant anti-aging paint for external walls and preparation method thereof

An anti-ultraviolet, water-based coating technology, used in radiation-absorbing coatings, polyurea/polyurethane coatings, coatings, etc. Light dispersion, good adhesion, good dispersion effect

Inactive Publication Date: 2015-03-04
HEFEI BULAOCHUANQI HEALTH CARE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the density of round sand is high, adding it to the paint and spraying it on the outer wall will increase the weight of the building, and there is a danger of falling off the wall due to wind and sun, and it will also affect the dispersion of the paint.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] specific implementation plan

[0016] The present invention will be described in detail below through specific examples.

[0017] An anti-ultraviolet and anti-aging water-based paint for exterior walls is prepared from the following raw materials in parts by weight (kg): pure acrylic emulsion 28, water-based polyurethane resin 9, granite powder 3, precipitated barium carbonate 4, 2-hydroxy-4- Methoxybenzophenone 0.8, silicon dioxide 4, paper clay 3, vinyl tar 2, dispersant NNO1, modified round mortar 6, water 25;

[0018] The modified round-grained mortar is prepared from the following raw materials in parts by weight (kg): 50 round-grained sand of 150-180 mesh, 10 kaolin, 22 white mortar, 7 bamboo charcoal powder, 4 potassium feldspar powder, lignin sulphur Calcium acid 4, water 20; the preparation method is to put kaolin and potassium feldspar powder into a calcination furnace at 50-540 ° C for 3-4 hours, take it out, then mix it with bamboo charcoal powder, grind it...

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Abstract

The invention discloses an ultraviolet-resistant anti-aging water-based paint for external walls. The invention is characterized in that the water-based paint is prepared from the following raw materials in parts by weight: 28-30 parts of pure acrylic emulsion, 9-11 parts of water-based polyurethane resin, 3-5 parts of granite powder, 4-6 parts of precipitated barium carbonate, 0.8-1 part of 2-hydroxy-4-methoxy diphenyl ketone, 4-6 parts of silicon dioxide, 3-5 parts of paper clay, 2-3 parts of ethylene tar, 1-1.5 parts of dispersing agent NNO, 6-8 parts of modified round-grain mortar and 25-30 parts of water. By adopting the special formula and combining the sand wall paint and ultraviolet-resistant paint, the 2-hydroxy-4-methoxy diphenyl ketone has ultraviolet absorption effect; and by adding the modified round-grain mortar, the water-based paint has the advantages of favorable dispersion effect, high hardness and favorable wear resistance. The coated film has the advantages of beautiful tactile sensation, light weight, favorable dispersity, favorable adhesiveness and elegant appearance, can not increase the pressure of the building, and can satisfy different decoration demands.

Description

technical field [0001] The invention relates to a paint and a preparation method thereof, in particular to an anti-ultraviolet and anti-aging water-based paint for exterior walls and a preparation method thereof. Background technique [0002] With the improvement of people's awareness of environmental protection, architectural coatings are gradually transforming from the purpose of protecting walls and decorations to multi-functional, green and energy-saving development, especially exterior wall coatings. The exterior wall painting of the company has been further improved. [0003] UV absorber is a kind of light stabilizer, which can absorb the ultraviolet part of sunlight and fluorescent light source without changing itself. 2-Hydroxy-4-methoxybenzophenone is an ultraviolet absorber with a maximum absorption wavelength range of 28.340nm. The general dosage is 0.1% to 1.5%. It has good thermal stability and decomposes at 200°C. The product hardly absorbs visible light and ...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D175/04C09D7/12
CPCC09D133/04C08K2201/014C09D5/32C09D7/61C09D7/63C09D7/65C09D7/70C08L75/04C08K13/06C08K5/132C08K2003/265C08K3/36
Inventor 陈芳
Owner HEFEI BULAOCHUANQI HEALTH CARE TECH
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