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Sunscreen external wall coating and preparation method thereof

A technology of exterior wall coatings and raw materials, applied in the field of decorative materials, can solve problems affecting the appearance of buildings, service life and product value, poor waterproof performance and light resistance, poor adhesion of exterior wall coatings, etc., to achieve paint film Excellent stability, good waterproof performance, complete and smooth paint film

Inactive Publication Date: 2018-07-06
HEFEI SHANGHAN DECORATION ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when coatings are applied to the exterior walls of buildings, there are some problems, such as poor adhesion, waterproof performance and light resistance of exterior wall coatings. After being coated on the exterior walls of buildings, after a long time If exposed to the sun and rain, the outer coating will fall off and crack, the weather resistance is poor, and the service life is short, which seriously affects the appearance, service life and product value of the building.

Method used

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  • Sunscreen external wall coating and preparation method thereof
  • Sunscreen external wall coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A sunscreen exterior wall coating, the following raw materials are weighed: 40kg of terpene resin, 10kg of polyurethane, 70kg of vinyl acetate-ethylene tertiary carbonate copolymer emulsion, 20kg of sodium bentonite, 3kg of hindered amine, and hydroxycyclohexanebenzophenone 1kg, dioctyl phthalate 1kg, dimethyl sulfoxide 1kg, adhesion aid 8kg, alkyl aryl polyether wetting agent 1kg, 2,2,4-trimethyl-1,3-pentane Diol diisobutyrate film-forming aid 1kg, 2,4,6-tris(2,4-dihydroxyphenyl)-1,3,5-triazine ultraviolet absorber 1kg and polyacrylic acid leveling agent 1kg ;

[0030] Preparation of bonding aids;

[0031] Step 1: Take the following raw materials: 4 kg of linseed gum, 1.5 kg of propyltrimethoxysilane, 1 kg of polyethylene oxide, 0.4 kg of sodium alginate and 1 kg of polyhexamethylene adipate;

[0032] Step 2: Heat linseed gum to 65°C, keep it warm for 30 minutes, add propyltrimethoxysilane and polyhexamethylene adipate while stirring, raise the temperature to 75°C, c...

Embodiment 2

[0038] A sunscreen exterior wall coating, the following raw materials are weighed: terpene resin 45kg, polyurethane 15kg, vinyl acetate-ethylene tertiary carbonate copolymer emulsion 75kg, sodium bentonite 25kg, hindered amine 4kg, hydroxycyclohexanebenzophenone 1.5kg, dioctyl phthalate 2kg, dimethyl sulfoxide 1.25kg, bonding aid 10kg, dioctyl sulfosuccinate sodium wetting agent 2kg, 2,2,4-trimethyl- 1,3-pentanediol diisobutyrate film-forming aid 3kg, 2(2-dihydroxybenzene-5-benzyl) benzotriazole ultraviolet absorber 2kg and carboxymethylcellulose leveling agent 3kg ;

[0039] Preparation of bonding aids;

[0040] Step 1: Take the following raw materials: 5 kg of linseed gum, 1.75 kg of propyltrimethoxysilane, 1.5 kg of polyethylene oxide, 0.5 kg of sodium alginate and 1.25 kg of polyethylene adipate;

[0041] Step 2: Heat linseed gum to 70°C, keep it warm for 35 minutes, add propyltrimethoxysilane and polyhexamethylene adipate while stirring, raise the temperature to 80°C, c...

Embodiment 3

[0047] A sunscreen exterior wall coating, the following raw materials are weighed: 50kg of terpene resin, 20kg of polyurethane, 80kg of vinyl acetate-ethylene tertiary carbonate copolymer emulsion, 30kg of sodium bentonite, 5kg of hindered amine, and hydroxycyclohexanebenzophenone 2kg, dioctyl phthalate 3kg, dimethyl sulfoxide 1.5kg, bonding aid 12kg, alkyl aryl polyether wetting agent 3kg, 2,2,4-trimethyl-1,3- Pentylene glycol diisobutyrate film-forming aid 5kg, 2,4 dihydroxybenzophenone ultraviolet absorber 3kg and polydimethylsiloxane leveling agent 5kg;

[0048] Preparation of bonding aids;

[0049] Step 1: Take the following raw materials: linseed gum 6kg, propyltrimethoxysilane 2kg, polyethylene oxide 2kg, sodium alginate 0.6kg and polyethylene adipate 1.5kg;

[0050] Step 2: Heat linseed gum to 75°C, keep it warm for 40 minutes, add propyltrimethoxysilane and polyhexamethylene adipate while stirring, raise the temperature to 85°C, continue stirring for 30 minutes, and ...

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PUM

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Abstract

The invention discloses sunscreen external wall coating and a preparation method thereof, and belongs to the technical field of decoration materials. The coating is prepared from the raw materials ofterpene resin, polyurethane, vinyl acetate-tert-carboxylic acid ethylene copolymer emulsion, sodium bentonite, hindered amine, hydroxycyclohexyl phenyl ketone, dioctyl phthalate, dimethyl sulfoxide, abonding assistant, a wetting agent, a film forming assistant, a ultraviolet light absorbing agent and a flatting agent. The preparation method of the sunscreen external wall coating comprises the steps of blending and grinding of the raw materials. The external wall coating is easy and convenient to prepare, low in cost, green and environmentally friendly, and has the characteristics that the peeling strength between the coating and an external wall is high, the sunscreen and waterproof performance is good, and the weatherproof performance is excellent, the service life of the coating is long, the quality problems such as falling-off of a surface layer and cracking cannot occur, the coating film is intact, flat and smooth, free of swelling and loosening, the stability of the coating filmis excellent, the decoration performance is good, the problems such as running and out of flatness cannot occur after the coating is brushed on the wall, construction is convenient, and the application range is wide.

Description

technical field [0001] The invention relates to the technical field of decorative materials, in particular to a sun-proof exterior wall paint and a preparation method thereof. Background technique [0002] Coatings are widely used, and are used on exterior walls, interior walls and floors of buildings. At present, when coatings are applied to the exterior walls of buildings, there are some problems, such as poor adhesion, waterproof performance and light resistance of exterior wall coatings. After being coated on the exterior walls of buildings, after a long time If exposed to the sun and rain, the outer coating will fall off and crack, the weather resistance will be poor, and the service life will be short, which will seriously affect the appearance, service life and product value of the building. Contents of the invention [0003] Aiming at the problems existing in the prior art, the present invention provides a sun-proof exterior wall coating and a preparation method t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D131/04C09D145/00C09D175/04C09D7/61C09D7/63C09D7/65
CPCC09D131/04C08L2205/035C08L45/00C08L75/04C08L5/00C08L71/02C08L5/04C08L67/02C08K13/02C08K3/346C08K5/07C08K5/5419
Inventor 俞克波
Owner HEFEI SHANGHAN DECORATION ENG CO LTD
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