Single-component exposed polyurethane waterproof paint and preparation method thereof

A polyurethane waterproof and exposed technology, applied in the field of polyurethane, can solve the problems of poor weather resistance and wear resistance, can not be used as decoration, low-strength waterproof coating, etc., achieves strong elongation, good scratch resistance, and simple manufacturing process Effect

Active Publication Date: 2017-02-08
南通科顺建筑新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the situation that the polyurethane waterproof coating has poor aging resistance and cannot be exposed, the patent CN105440930 A discloses an exposed one-component polyurethane waterproof coating and its preparation method. Its main component is polyether polyol, which is a single-component low- High-strength waterproof coatings are mainly used for general exposed waterproofing and other directions, which only meet the waterproof requirements, have poor weather resistance and wear resistance, and cannot be used as decorations

Method used

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  • Single-component exposed polyurethane waterproof paint and preparation method thereof
  • Single-component exposed polyurethane waterproof paint and preparation method thereof
  • Single-component exposed polyurethane waterproof paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A one-component exposed polyurethane waterproof coating, its raw material components are: 21 parts by weight of polyether diol DL-2000, 10 parts by weight of polycarbonate diol T5652, 5 parts by weight of diphthalic acid diol Isononyl ester, 1.5 parts by weight of 1,4-butanediol, 15 parts by weight of talc, 10 parts by weight of titanium dioxide R-706, 2 parts by weight of nano-silica, 12 parts by weight of diisocyanate HMDI, 8 parts by weight of HDI trimer, 9 parts by weight of butyl acetate, 5 parts by weight of propylene glycol methyl ether acetate, 0.5 parts by weight of Tinuvin-928, 0.5 parts by weight of Tinuvin-770, 0.2 parts by weight of Irganox-245 , 0.2 parts by weight of BYK-066N, 0.1 parts by weight of drier T-12.

[0025] 1) Add polyether polyols, polycarbonate polyols, plasticizers, pigments and fillers into the reaction vessel, disperse evenly, stir and heat up to 100-110°C, dehydration at a relative vacuum of -0.08-0.1MPa 2 ~3 hours;

[0026] 2) Lower ...

Embodiment 2

[0044] A one-component exposed polyurethane waterproof coating, its raw material components are: 13 parts by weight polyether diol DL-2000, 3 parts by weight polyether diol 330N, 14 parts by weight polycarbonate diol T5652 , 5 parts by weight of diisononyl phthalate, 1.5 parts by weight of 1,4-butanediol, 16 parts by weight of talc, 10 parts by weight of titanium dioxide R-706, 2 parts by weight of nano-dioxide Silicon, 11 parts by weight of diisocyanate HMDI, 8 parts by weight of HDI trimer, 10 parts by weight of butyl acetate, 5 parts by weight of propylene glycol methyl ether acetate, 0.5 parts by weight of Tinuvin-928, 0.5 parts by weight of Tinuvin -770, 0.2 parts by weight of Irganox-245, 0.2 parts by weight of BYK-066N, 0.1 parts by weight of drier T-12.

[0045] 1) Add polyether polyols, polycarbonate polyols, plasticizers, pigments and fillers into the reaction vessel, disperse evenly, stir and heat up to 100-110°C, dehydration at a relative vacuum of -0.08-0.1MPa 2 ...

Embodiment 3

[0052] A single-component exposed polyurethane waterproof coating, its raw material components are: 15 parts by weight of polyether diol DL-2000, 13 parts by weight of polycarbonate diol T5652, 5 parts by weight of diphthalic acid diol Isononyl ester, 1 weight part of 1,4-butanediol, 22 weight parts of talcum powder, 10 weight parts of titanium dioxide R-706, 2.5 weight parts of nano silicon dioxide, 10 weight parts of diisocyanate HMDI, 5 parts by weight of HDI trimer, 10 parts by weight of butyl acetate, 5 parts by weight of propylene glycol methyl ether acetate, 0.5 parts by weight of Tinuvin-928, 0.5 parts by weight of Tinuvin-770, 0.2 parts by weight of Irganox-245 , 0.2 parts by weight of BYK-066N, 0.1 parts by weight of drier T-12.

[0053] 1) Add polyether polyols, polycarbonate polyols, plasticizers, pigments and fillers into the reaction vessel, disperse evenly, stir and heat up to 100-110°C, dehydration at a relative vacuum of -0.08-0.1MPa 2 ~3 hours;

[0054] 2) ...

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Abstract

The invention discloses a single-component exposed polyurethane waterproof paint and a preparation method thereof. The method comprises the following steps: adding polyether glycol, polycarbonate polylol, a plasticizer and a pigment and filler into a reaction vessel, uniformly dispersing, heating and carrying out vacuum dehydration; cooling, adding diisocyanate, and reacting by stirring and heating; adding a chain extender, and reacting; adding a diisocyanate tripolymer, and continuing reacting; cooling, adding a solvent and stirring; cooling, adding a catalyst, an ultraviolet absorbent, an ultraviolet stabilizer, an antioxidant and a defoaming agent, stirring uniformly, and degassing and discharging in a vacuum to obtain the finished product. The paint has the advantages of high strength, high elongation percentage, favorable weather resistance, favorable wear resistance, favorable scratch resistance and simple manufacturing process, and is convenient for construction.

Description

technical field [0001] The invention relates to the technical field of polyurethane, in particular to a single-component polyurethane waterproof coating technology. Background technique [0002] Polyurethane waterproof coating is one of the important components of the application of polyurethane synthetic materials. Due to the elasticity and good extensibility of the polyurethane coating film, high tensile strength, good adhesion, small volume shrinkage, no seams in the waterproof layer of the coating film, it has strong adaptability to the deformation of the cracks in the base layer, and is suitable for construction and maintenance. It is convenient and easy to construct on the surface of any base layer with complex structure. It can be used for waterproofing and plugging in different parts of the building, so it has become one of the main materials for building waterproofing. [0003] There is no measurement error in the construction of single-component polyurethane water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D7/12C08G18/79C08G18/75C08G18/66C08G18/48C08G18/44
CPCC08G18/4018C08G18/44C08G18/4825C08G18/755C08G18/758C08G18/792C08K3/22C08K3/34C08K3/36C08K5/12C08K13/02C08K2003/2241C08K2201/011C09D7/61C09D7/63C09D175/08
Inventor 陈伟忠陈立义龚兴宇陈忠贤杨小育
Owner 南通科顺建筑新材料有限公司
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