CN106833346A - A kind of high-strength mono-composition poyurethane water-proof paint and preparation method thereof - Google Patents

A kind of high-strength mono-composition poyurethane water-proof paint and preparation method thereof Download PDF

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Publication number
CN106833346A
CN106833346A CN201710037185.7A CN201710037185A CN106833346A CN 106833346 A CN106833346 A CN 106833346A CN 201710037185 A CN201710037185 A CN 201710037185A CN 106833346 A CN106833346 A CN 106833346A
Authority
CN
China
Prior art keywords
curing agents
latent curing
polyisocyanates
proof paint
polymerization inhibitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710037185.7A
Other languages
Chinese (zh)
Inventor
张延安
李强
安国辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PANJIN YUWANG WATERPROOF BUILDING MATERIAL GROUP CO Ltd
Original Assignee
PANJIN YUWANG WATERPROOF BUILDING MATERIAL GROUP CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PANJIN YUWANG WATERPROOF BUILDING MATERIAL GROUP CO Ltd filed Critical PANJIN YUWANG WATERPROOF BUILDING MATERIAL GROUP CO Ltd
Priority to CN201710037185.7A priority Critical patent/CN106833346A/en
Publication of CN106833346A publication Critical patent/CN106833346A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • C09D175/08—Polyurethanes from polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/089—Reaction retarding agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • 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

Abstract

The present invention provides a kind of high-strength mono-composition poyurethane water-proof paint, including following main component：Agent, dispersant, YA latent curing agents, T-shaped catalyst, M types polymerization inhibitor, inserts and pigment are prolonged in high molecular weight polyether, polyisocyanates, increasing.The present invention makes the relative reduction of polyisocyanates dosage using high molecular weight polyether and polyisocyanates etc. and some special materials, and meets index request, and film-forming is fast；YA latent curing agents being added simultaneously, the speed of NCO and water reaction being significantly larger than due to the speed of YA latent curing agents and water reaction, reaction generation primary amine, primary amine generates polyurethane with NCO reactions again, because course of reaction is without CO2Gas is produced, therefore, film densification can be obtained, intensity reaches the waterproof coating of more than 6MPa；The present invention makes its storage period longer using polymerization inhibitor in bucket, is more than 1 year.

Description

A kind of high-strength mono-composition poyurethane water-proof paint and preparation method thereof
Technical field
The invention belongs to water-repellent paint technical field, and in particular to a kind of high-strength mono-composition poyurethane water-proof paint and its system Preparation Method.
Background technology
The shortcoming of prior art mono-composition poyurethane water-proof paint is NCO（NCO）With water（H2O）Reaction, generation Further there is chain extending reaction with NCO and solidify in diamine or polyamine, amine.The CO produced in solidification process2Gas Stay in the material, cause material surface and internal generation sponge shape pin hole, the intensity of material is unable to reach 6MPa, can only achieve Below 4MPa.And storage period is general within 6 months.
The content of the invention
For deficiencies of the prior art, the technical problem to be solved in the present invention is：How to provide a kind of high-strength Mono-composition poyurethane water-proof paint and preparation method thereof, to solve existing weak point.
In order to solve the above-mentioned technical problem, the present invention is adopted the following technical scheme that：
A kind of high-strength mono-composition poyurethane water-proof paint, including following main component：High molecular weight polyether, polyisocyanates, increasing Prolong agent, dispersant, YA latent curing agents, T-shaped catalyst, M types polymerization inhibitor, inserts and pigment.
Preferably, the composition of described high-strength mono-composition poyurethane water-proof paint, including following percentage by weight：
High molecular weight polyether 35 ~ 45%
Polyisocyanates 5 ~ 8%
Agent 20 ~ 30% is prolonged in increasing
Dispersant 0.2 ~ 0.5%
YA latent curing agents 1.0 ~ 2.0%
T-shaped catalyst 0.05 ~ 0.1%
M types polymerization inhibitor 0.05 ~ 0.1%
Inserts 25 ~ 37%
Pigment 1 ~ 2%.
In raw material of the invention：Using high molecular weight polyether, intensity and elongation percentage performance are improved；Using YA latent curing agents, Urethane crosslinks degree is improved, intensity and elongation percentage performance is improved；Using M type polymerization inhibitors, blocking mono-component polyurethane is in bucket Cohesion is reacted, and only can just be reacted again after moisture in ingress of air.
The preparation method of described high-strength mono-composition poyurethane water-proof paint, comprises the following steps：First by special macromolecule Amount polyethers and increasing are prolonged agent, dispersant and are added to reactor, are warmed up to 110 ~ 120 DEG C and are slowly added to inserts and pigment, true - 0.085 ~ -0.09Mpa of sky is dehydrated 110 ~ 130min, is cooled to 70 ~ 75 DEG C of addition polyisocyanates, anti-in 80 ~ 85 DEG C of stirrings 140 ~ 160min is answered, adds YA latent curing agents, T-shaped catalyst to react 25 ~ 35min at 78 ~ 85 DEG C, add the stirring of M types polymerization inhibitor 25 ~ 35min, cools to less than 70 DEG C blowing packagings.
Reaction principle of the invention is：
High-strength mono-composition poyurethane water-proof paint of the invention is using high molecular weight polyether and polyisocyanates etc. and some are special Raw material, makes the relative reduction of polyisocyanates dosage, and meets index request, and film-forming is fast；YA latent curing agents are added simultaneously, YA latent curing agents can be stablized with NCO and coexist in dry conditions, and they can react with water, and only present invention design YA is latent solid The amount of agent is significantly larger than the speed of NCO and water reaction, YA latent curing agents and water reaction generation primary amine, primary with the speed of water reaction Amine generates polyurethane with NCO reactions again, because course of reaction is without CO2Gas is produced, it is possible to which formation is fine and close pin-free to be prevented Water film, greatly improves its intensity and elongation percentage, will with the high-strength polyurethane waterproofing paint standard for reaching more than intensity 6MPa Ask.
Specific reaction equation is as follows：
；
。
Compared to existing technology, the present invention has the advantages that：
High-strength mono-composition poyurethane water-proof paint of the invention is using high molecular weight polyether and polyisocyanates etc. and some are special Raw material, makes the relative reduction of polyisocyanates dosage, and meets index request, and film-forming is fast；YA latent curing agents are added simultaneously, Be significantly larger than the speed of NCO and water reaction due to the speed of YA latent curing agents and water reaction, reaction generation primary amine, primary amine again with NCO reaction generation polyurethane, because course of reaction is without CO2Gas is produced, therefore, film densification can be obtained, intensity reaches 6MPa Waterproof coating above；The present invention makes its storage period longer using polymerization inhibitor in bucket, is more than 1 year.
Specific embodiment
The present invention is described in further detail with reference to specific embodiment.The implementation case is being with the technology of the present invention Under the premise of implemented, it is creative to illustrate the present invention now to provide detailed implementation method and specific operating process, but Protection scope of the present invention is not limited to following embodiment.
Embodiment 1
A kind of high-strength mono-composition poyurethane water-proof paint, including following percentage by weight composition：
High molecular weight polyether 37%
Polyisocyanates 7%
Agent 25% is prolonged in increasing
Dispersant 0.3%
YA latent curing agents 1.6%
T-shaped catalyst 0.06%
M types polymerization inhibitor 0.09%
Inserts 27.45%
Pigment 1.5%.
The preparation method of described high-strength mono-composition poyurethane water-proof paint, comprises the following steps：First by special macromolecule Amount polyethers and increasing prolong agent, dispersant and be added to reactor, be warmed up to 115 DEG C and be slowly added to inserts and pigment, vacuum- 0.09Mpa is dehydrated 120min, is cooled to 72 DEG C of addition polyisocyanates, in 82 DEG C of stirring reaction 145min, adds the latent solidifications of YA Agent, T-shaped catalyst react 30min at 80 DEG C, add M types polymerization inhibitor stirring 30min, cool to less than 70 DEG C blowing packagings.
Embodiment 2
A kind of high-strength mono-composition poyurethane water-proof paint, including following percentage by weight composition：
High molecular weight polyether 45%
Polyisocyanates 5%
Agent 20% is prolonged in increasing
Dispersant 0.2%
YA latent curing agents 1.2%
T-shaped catalyst 0.1%
M types polymerization inhibitor 0.05%
Inserts 27.45%
Pigment 1%.
The preparation method of described high-strength mono-composition poyurethane water-proof paint, comprises the following steps：First by special macromolecule Amount polyethers and increasing prolong agent, dispersant and be added to reactor, be warmed up to 120 DEG C and be slowly added to inserts and pigment, vacuum- 0.085Mpa is dehydrated 130min, is cooled to 70 DEG C of addition polyisocyanates, in 85 DEG C of stirring reaction 140min, adds the latent solidifications of YA Agent, T-shaped catalyst react 25min at 85 DEG C, add M types polymerization inhibitor stirring 35min, cool to less than 70 DEG C blowing packagings.
Embodiment 3
A kind of high-strength mono-composition poyurethane water-proof paint, including following percentage by weight composition：
High molecular weight polyether 35%
Polyisocyanates 8%
Agent 20% is prolonged in increasing
Dispersant 0.5%
YA latent curing agents 2.0%
T-shaped catalyst 0.05%
M types polymerization inhibitor 0.1%
Inserts 32.35%
Pigment 2%.
The preparation method of described high-strength mono-composition poyurethane water-proof paint, comprises the following steps：First by special macromolecule Amount polyethers and increasing prolong agent, dispersant and be added to reactor, be warmed up to 110 DEG C and be slowly added to inserts and pigment, vacuum- 0.09Mpa is dehydrated 110min, is cooled to 75 DEG C of addition polyisocyanates, in 80 DEG C of stirring reaction 160min, adds the latent solidifications of YA Agent, T-shaped catalyst react 35min at 78 DEG C, add M types polymerization inhibitor stirring 25min, cool to less than 70 DEG C blowing packagings.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto, Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.

Claims (3)

1. a kind of high-strength mono-composition poyurethane water-proof paint, it is characterised in that including following main component：High molecular weight polyether, Agent, dispersant, YA latent curing agents, T-shaped catalyst, M types polymerization inhibitor, inserts and pigment are prolonged in polyisocyanates, increasing.
2. high-strength mono-composition poyurethane water-proof paint as claimed in claim 1, it is characterised in that including following percentage by weight Composition：
High molecular weight polyether 35 ~ 45%
Polyisocyanates 5 ~ 8%
Agent 20 ~ 30% is prolonged in increasing
Dispersant 0.2 ~ 0.5%
YA latent curing agents 1.0 ~ 2.0%
T-shaped catalyst 0.05 ~ 0.1%
M types polymerization inhibitor 0.05 ~ 0.1%
Inserts 25 ~ 37%
Pigment 1 ~ 2%.
3. the preparation method of high-strength mono-composition poyurethane water-proof paint as claimed in claim 2, it is characterised in that including as follows Step：Special high molecular weight polyether and increasing are first prolonged into agent, dispersant and is added to reactor, be warmed up to 110 ~ 120 DEG C and be slowly added to Inserts and pigment, 110 ~ 130min is dehydrated in vacuum -0.085 ~ -0.09Mpa, is cooled to 70 ~ 75 DEG C of addition polyisocyanic acid Ester, in 80 ~ 85 DEG C of 140 ~ 160min of stirring reaction, adds YA latent curing agents, T-shaped catalyst to react 25 ~ 35min at 78 ~ 85 DEG C, Add M types polymerization inhibitor to stir 25 ~ 35min, cool to less than 70 DEG C blowing packagings.
CN201710037185.7A 2017-01-19 2017-01-19 A kind of high-strength mono-composition poyurethane water-proof paint and preparation method thereof Pending CN106833346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710037185.7A CN106833346A (en) 2017-01-19 2017-01-19 A kind of high-strength mono-composition poyurethane water-proof paint and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710037185.7A CN106833346A (en) 2017-01-19 2017-01-19 A kind of high-strength mono-composition poyurethane water-proof paint and preparation method thereof

Publications (1)

Publication Number Publication Date
CN106833346A true CN106833346A (en) 2017-06-13

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104745065A (en) * 2013-12-31 2015-07-01 上海东大化学有限公司 High-strength single-component polyurethane waterproofing paint and preparation method thereof
CN104877542A (en) * 2015-06-16 2015-09-02 北京东方雨虹防水技术股份有限公司 Mono-component PU (Polyurethane) root-resistant waterproof paint and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104745065A (en) * 2013-12-31 2015-07-01 上海东大化学有限公司 High-strength single-component polyurethane waterproofing paint and preparation method thereof
CN104877542A (en) * 2015-06-16 2015-09-02 北京东方雨虹防水技术股份有限公司 Mono-component PU (Polyurethane) root-resistant waterproof paint and preparation method thereof

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Application publication date: 20170613

RJ01 Rejection of invention patent application after publication