CN108485497A - A kind of ageing-resistant aqueous polyurethane coating - Google Patents
A kind of ageing-resistant aqueous polyurethane coating Download PDFInfo
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- CN108485497A CN108485497A CN201810293727.1A CN201810293727A CN108485497A CN 108485497 A CN108485497 A CN 108485497A CN 201810293727 A CN201810293727 A CN 201810293727A CN 108485497 A CN108485497 A CN 108485497A
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- aqueous polyurethane
- ageing
- resistant aqueous
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of ageing-resistant aqueous polyurethane coating, raw material includes：Aqueous polyurethane, N, bis- (carboxyethyl phenyl time phosphinylidyne) the p-phenylenediamine lanthanums of N, microcrystalline wax, thickener, antifoaming agent, levelling agent, dispersant, coalescents.The present invention uses the N of rational proportion, bis- (carboxyethyl phenyl time phosphinylidyne) the p-phenylenediamine lanthanums of N and microcrystalline wax cooperate and form the anti-aging system of aqueous polyurethane coating, it solves the problems, such as that polyurethane is oxidizable, improves coating service life and security performance.
Description
Technical field
The present invention relates to ageing-resistant technical field more particularly to a kind of ageing-resistant aqueous polyurethane coatings.
Background technology
Contain isocyanate group and urethano in polyurethane molecular chain, it is gathered by isocyanates, polyalcohol and chain extender
It closes and obtains.Polyurethane has good flexibility and elasticity because of its unique molecular structure, and wear-resisting property is good, impact resistance,
It is low temperature resistant, it can be used for a long time at -60-120 DEG C.But raw material is either done with TDI or MDI, due to directly connecting on phenyl ring
Then isocyanate groups are easy to form conjugation with the NCO keys that close on, when by light, heat, oxygen, especially in ultraviolet light, and meeting
Cause the decomposition of urethane, produce arylamine, after the oxidized rearrangement of phenyl ring on arylamine, generates the chromophoric groups such as quinoid structure, this makes
The easy color development of polyurethane product turn yellow, white cannot be kept for a long time.As polyurethane industries among others continue to develop, technical matters it is continuous
It is perfect, yellow stain polyurethane product requirement is continuously increased, how to prepare the weather-resistant pu product met the requirements be at present urgently
Technical problem to be solved.
Invention content
Technical problems based on background technology, the present invention propose a kind of ageing-resistant aqueous polyurethane coating, it is solved
The oxidizable problem of polyurethane of having determined improves coating service life and security performance.
The present invention proposes that ageing-resistant aqueous polyurethane coating, raw material include by weight：90-120 parts of aqueous polyurethane,
Bis- (carboxyethyl phenyl time phosphinylidyne) 2-4 parts of the p-phenylenediamine lanthanums of N, N-, 1-2.5 parts of microcrystalline wax, 0.5-2 parts of thickener, antifoaming agent
0.05-0.5 parts, 0.5-2 parts of levelling agent, 1-2 parts of dispersant, 2-8 parts of coalescents.
Preferably, raw material includes by weight：100-110 parts of aqueous polyurethane, bis- (the carboxyethyl phenyl time phosphorus of N, N-
Acyl) 2.5-3.5 parts of p-phenylenediamine lanthanum, 1.5-2 parts of microcrystalline wax, 0.8-1.5 parts of thickener, 0.1-0.3 parts of antifoaming agent, levelling agent
1-1.5 parts, 1.2-1.8 parts of dispersant, 3-5 parts of coalescents.
Preferably, the weight ratio of bis- (carboxyethyl phenyl time phosphinylidyne) the p-phenylenediamine lanthanums of N, N-, microcrystalline wax and coalescents
It is 1.5：1：3.
Preferably, thickener is non-ionic associative type thickener.
Preferably, antifoaming agent is dimethicone and/or polyoxyethylene glycerol ether.
Preferably, levelling agent is silicon-type levelling agent, preferably dimethyl polysiloxane.
Preferably, dispersant is 1-isobutyl-3,5-dimethylhexylphosphoric acid.
Preferably, coalescents are propandiol butyl ether and/or propylene glycol methyl ether acetate.
The present invention uses the N of rational proportion, bis- (carboxyethyl phenyl time phosphinylidyne) the p-phenylenediamine lanthanums of N-, microcrystalline wax phase interworking
It is combined into the anti-aging system of aqueous polyurethane coating, bis- (carboxyethyl phenyl time phosphinylidyne) the p-phenylenediamine lanthanums of N, N- have for rare-earth type
Machine phosphoric acid aniline salt anti-aging agent, middle rare earth thermal stability is high, and binding ability is strong, can promote polyurethane oxidation chain reaction
It terminates, to effectively inhibit automatic oxygen aging process, aniline reproducibility is strong, can react to prevent oxygen aging process with oxygen；
Microcrystalline wax is to prevent old synergist, promotes N, bis- (carboxyethyl phenyl time phosphinylidyne) the p-phenylenediamine lanthanums of N- and oxygen reaction speed, significantly
Improve anti-aging efficiency；N, bis- (the carboxyethyl phenyl time phosphinylidyne) p-phenylenediamine of N- can be improved in dispersant, coalescents in the present invention
Lanthanum, microcrystalline wax in aqueous polyurethane coating disperse evenly and fast filming, it is resistance to further increase aqueous polyurethane coating
Ageing properties；The present invention is constituted aqueous polyurethane coating processing and lubrication stabilising system with thickener, antifoaming agent, levelling agent, is improved
The physicochemical property and processing stability of coating.
Specific implementation mode
In the following, technical scheme of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of ageing-resistant aqueous polyurethane coating, raw material include by weight：90 parts of aqueous polyurethane, the bis- (carboxylics of N, N-
Ethylphenyl time phosphinylidyne) 2 parts of p-phenylenediamine lanthanum, 1 part of microcrystalline wax, 0.5 part of non-ionic associative type thickener, dimethicone
0.05 part, 0.5 part of dimethyl polysiloxane, 1 part of 1-isobutyl-3,5-dimethylhexylphosphoric acid, 2 parts of propandiol butyl ether.
Embodiment 2
A kind of ageing-resistant aqueous polyurethane coating, raw material include by weight：120 parts of aqueous polyurethane, the bis- (carboxylics of N, N-
Ethylphenyl time phosphinylidyne) 4 parts of p-phenylenediamine lanthanum, 2.5 parts of microcrystalline wax, 2 parts of non-ionic associative type thickener, polyoxyethylene glycerol
0.5 part of ether, 2 parts of dimethyl polysiloxane, 2 parts of 1-isobutyl-3,5-dimethylhexylphosphoric acid, 8 parts of propylene glycol methyl ether acetate.
Embodiment 3
A kind of ageing-resistant aqueous polyurethane coating, raw material include by weight：100 parts of aqueous polyurethane, the bis- (carboxylics of N, N-
Ethylphenyl time phosphinylidyne) 2.5 parts of p-phenylenediamine lanthanum, 1.5 parts of microcrystalline wax, 0.8 part of non-ionic associative type thickener, dimethyl-silicon
0.1 part of oil, 1 part of dimethyl polysiloxane, 1.2 parts of 1-isobutyl-3,5-dimethylhexylphosphoric acid, 3 parts of propandiol butyl ether.
Embodiment 4
A kind of ageing-resistant aqueous polyurethane coating, raw material include by weight：110 parts of aqueous polyurethane, the bis- (carboxylics of N, N-
Ethylphenyl time phosphinylidyne) 3.5 parts of p-phenylenediamine lanthanum, 2 parts of microcrystalline wax, 1.5 parts of non-ionic associative type thickener, polyoxyethylene is sweet
0.3 part of oily ether, 1.5 parts of dimethyl polysiloxane, 1.8 parts of 1-isobutyl-3,5-dimethylhexylphosphoric acid, 5 parts of propylene glycol methyl ether acetate.
Embodiment 5
A kind of ageing-resistant aqueous polyurethane coating, raw material include by weight：100 parts of aqueous polyurethane, the bis- (carboxylics of N, N-
Ethylphenyl time phosphinylidyne) 1.5 parts of p-phenylenediamine lanthanum, 1 part of microcrystalline wax, 1.2 parts of non-ionic associative type thickener, dimethicone
0.2 part, 1.2 parts of dimethyl polysiloxane, 1.6 parts of 1-isobutyl-3,5-dimethylhexylphosphoric acid, 3 parts of propylene glycol methyl ether acetate.
To not be added, bis- (carboxyethyl phenyl time phosphinylidyne) the p-phenylenediamine lanthanums of N-, microcrystalline wax aqueous polyurethane, at other
Aqueous polyurethane coating is made as a control group under the same conditions in auxiliary agent and preparation process, with above-mentioned
Aqueous polyurethane coating is made according to ASTMD412-1998 (2002), GB/T3512-2001 standards in embodiment 1-5
Measure tensile property and ageing-resistant performance data such as the following table 1：
The Erichsen test test data of thermo-oxidative ageing at 1 100 DEG C of table
By upper table test data：Control group and embodiment 1-5 be made the tensile strength of aqueous polyurethane coating with
The increase for ageing time is gradually reduced, and the tensile strength of aqueous polyurethane coating is made with ageing time in embodiment 1-5
Increased decrement is significantly less than control group.By the way that N- bis- (carboxyethyl phenyl time phosphinylidynes) is added in the present invention known to analysis to benzene
Diamines lanthanum, microcrystalline wax are remarkably improved the ageing-resistant performance of aqueous polyurethane coating as anti-aging agent.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of ageing-resistant aqueous polyurethane coating, which is characterized in that its raw material includes by weight：Aqueous polyurethane 90-120
Part, bis- (carboxyethyl phenyl time phosphinylidyne) 2-4 parts of the p-phenylenediamine lanthanums of N, N-, 1-2.5 parts of microcrystalline wax, 0.5-2 parts of thickener, defoaming
0.05-0.5 parts of agent, 0.5-2 parts of levelling agent, 1-2 parts of dispersant, 2-8 parts of coalescents.
2. ageing-resistant aqueous polyurethane coating according to claim 1, which is characterized in that its raw material includes by weight：Water
Property 100-110 parts of polyurethane, bis- (carboxyethyl phenyl time phosphinylidyne) 2.5-3.5 parts of the p-phenylenediamine lanthanums of N, N-, microcrystalline wax 1.5-2
Part, 0.8-1.5 parts of thickener, 0.1-0.3 parts of antifoaming agent, 1-1.5 parts of levelling agent, 1.2-1.8 parts of dispersant, coalescents 3-5
Part.
3. ageing-resistant aqueous polyurethane coating according to claim 1 or claim 2, which is characterized in that the bis- (carboxyethyl phenyls of N, N-
Phosphinylidyne) p-phenylenediamine lanthanum, microcrystalline wax and coalescents weight ratio be 1.5：1：3.
4. according to any one of the claim 1-3 ageing-resistant aqueous polyurethane coatings, which is characterized in that thickener is nonionic
Association thickener.
5. according to any one of the claim 1-4 ageing-resistant aqueous polyurethane coatings, which is characterized in that antifoaming agent is dimethyl
Silicone oil and/or polyoxyethylene glycerol ether.
6. according to any one of the claim 1-5 ageing-resistant aqueous polyurethane coatings, which is characterized in that levelling agent is organosilicon
It is levelling agent, preferably dimethyl polysiloxane.
7. according to any one of the claim 1-6 ageing-resistant aqueous polyurethane coatings, which is characterized in that dispersant is dodecane
Base phosphate.
8. according to any one of the claim 1-7 ageing-resistant aqueous polyurethane coatings, which is characterized in that coalescents are the third two
Alcohol butyl ether and/or propylene glycol methyl ether acetate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293727.1A CN108485497A (en) | 2018-03-30 | 2018-03-30 | A kind of ageing-resistant aqueous polyurethane coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293727.1A CN108485497A (en) | 2018-03-30 | 2018-03-30 | A kind of ageing-resistant aqueous polyurethane coating |
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| Publication Number | Publication Date |
|---|---|
| CN108485497A true CN108485497A (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810293727.1A Withdrawn CN108485497A (en) | 2018-03-30 | 2018-03-30 | A kind of ageing-resistant aqueous polyurethane coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111100541A (en) * | 2019-12-23 | 2020-05-05 | 王晓军 | Waterborne polyurethane coating and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189513A (en) * | 1997-01-24 | 1998-08-05 | 李风华 | Rubber antiager |
| CN1380364A (en) * | 2002-05-17 | 2002-11-20 | 盖广清 | Water energy-storing luminescent paint |
| CN102504679A (en) * | 2011-10-17 | 2012-06-20 | 青岛爱尔家佳新材料有限公司 | Novel anti-skidding coating for deck and preparation method thereof |
| CN102702870A (en) * | 2012-05-17 | 2012-10-03 | 青岛爱尔家佳新材料有限公司 | Water-based marking paint and preparation method thereof |
| CN103788787A (en) * | 2013-10-21 | 2014-05-14 | 广州擎天材料科技有限公司 | Single-component water-based natural drying finishing coat for construction crane and preparation method thereof |
-
2018
- 2018-03-30 CN CN201810293727.1A patent/CN108485497A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189513A (en) * | 1997-01-24 | 1998-08-05 | 李风华 | Rubber antiager |
| CN1380364A (en) * | 2002-05-17 | 2002-11-20 | 盖广清 | Water energy-storing luminescent paint |
| CN102504679A (en) * | 2011-10-17 | 2012-06-20 | 青岛爱尔家佳新材料有限公司 | Novel anti-skidding coating for deck and preparation method thereof |
| CN102702870A (en) * | 2012-05-17 | 2012-10-03 | 青岛爱尔家佳新材料有限公司 | Water-based marking paint and preparation method thereof |
| CN103788787A (en) * | 2013-10-21 | 2014-05-14 | 广州擎天材料科技有限公司 | Single-component water-based natural drying finishing coat for construction crane and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 胡又牧等: "《胶乳应用技术》", 31 October 1990, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111100541A (en) * | 2019-12-23 | 2020-05-05 | 王晓军 | Waterborne polyurethane coating and preparation method thereof |
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