CN110551446A - Magnetic flame-retardant waterborne polyurethane coating and application thereof - Google Patents

Magnetic flame-retardant waterborne polyurethane coating and application thereof Download PDF

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Publication number
CN110551446A
CN110551446A CN201910895828.0A CN201910895828A CN110551446A CN 110551446 A CN110551446 A CN 110551446A CN 201910895828 A CN201910895828 A CN 201910895828A CN 110551446 A CN110551446 A CN 110551446A
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CN
China
Prior art keywords
parts
flame
polyurethane coating
retardant
waterborne polyurethane
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Pending
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CN201910895828.0A
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Chinese (zh)
Inventor
闵永刚
张增耀
刘屹东
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YANCHENG ZENGCAI SCIENCE & TECHNOLOGY Co Ltd
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YANCHENG ZENGCAI SCIENCE & TECHNOLOGY Co Ltd
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Priority to CN201910895828.0A priority Critical patent/CN110551446A/en
Publication of CN110551446A publication Critical patent/CN110551446A/en
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    • 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
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
    • C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
    • 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
    • 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
    • C08G18/4833—Polyethers containing oxyethylene units
    • 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
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • 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
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • C08G18/6677—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
    • 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
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
    • 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
    • C09D175/06—Polyurethanes from polyesters
    • 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
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C09D5/185—Intumescent paints

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention discloses a magnetic flame-retardant waterborne polyurethane coating, a preparation method and application thereof, wherein the main raw materials of the waterborne polyurethane coating are isocyanate, polyalcohol, dimethylolpropionic acid, a chain extender, a flame retardant, a modifier, an auxiliary agent and a pigment, and the waterborne polyurethane coating prepared by proper mass proportion has excellent heat resistance, acid resistance, alkali resistance, organic solvent resistance and water resistance, and has high peel strength and elongation at break while having magnetic and flame-retardant properties. Can be applied to various fields such as decoration, painting, protective layers and the like, and has great economic value.

Description

Magnetic flame-retardant waterborne polyurethane coating and application thereof
The invention relates to a magnetic flame-retardant waterborne polyurethane coating and application thereof, belonging to the technical field of coatings.
Background
The polyurethane coating has the advantages of adjustable hardness, low temperature resistance, good flexibility, high bonding strength and the like, can be applied to painting pigments and used as a coating for decoration, and has wider and wider application. But at present, the whole polyurethane coating industry still takes the solvent type as the main material.
with the enhancement of the consciousness of safety and environmental protection of people, the research of the water-based polyurethane coating is rapidly developed, and the water-based polyurethane coating is formed by dissolving or dispersing polyurethane in water, and has the advantages of no solvent, no pollution, good film forming property, easy mixing with other polymers, particularly emulsion type polymers, and the like compared with a solvent type coating. After 90 years, the paint has been gradually applied to external walls, internal walls of buildings, ground buildings, ceilings, roofs, water proofing of devices, painting pigments, clothes dyeing and the like, but has a plurality of defects, and the functions of the paint need to be improved through various modifications.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the defects of the prior art, the first object of the invention is to provide a flame-retardant waterborne polyurethane coating and application thereof.
The second purpose of the invention is to provide a flame-retardant waterborne polyurethane coating with magnetism and application thereof.
The technical scheme is as follows: in order to achieve the purpose, the invention is realized by the following technical scheme: a flame-retardant waterborne polyurethane coating with magnetism and application thereof are characterized in that the coating comprises the following raw material components: 4-32 parts of isocyanate, 32-85 parts of macromolecular polyol, 1-16 parts of chain extender, 2-14 parts of coupling agent, 4-26 parts of flame retardant, 2-72 parts of magnetic material, 3-23 parts of dimethylolpropionic acid, 2-20 parts of auxiliary agent and 1-18 parts of pigment.
The preparation method of the magnetic flame-retardant waterborne polyurethane coating comprises the following steps:
The polyol, isocyanate and flame retardant after vacuum dehydration were poured in a three-necked flask in a measured amount, and then the polymerization reaction was carried out by slowly raising the temperature to about 90 ℃ with moderate stirring, and the reaction time was about 3 hours. After the reaction is completed, the reaction mixture is cooled to below sixty degrees within 1 minute, otherwise a series of side reactions may occur. Adding acetone to reduce viscosity, adding hydrophilic chain extender DMPA, chain extender diethylene glycol, stannous octoate and dibutyltin dilaurate serving as catalysts, reacting at a temperature range of 65-70 ℃ until-NCO (isocyanate group) groups start to be stable, and cooling to 35 ℃ to obtain the desired prepolymer. Under the condition of high shearing force, a silane coupling agent (N-aminoethyl-3-aminopropyl methyl dimethoxy silane) is accurately and slowly dripped by a dropper while stirring, then the reaction is carried out for 15-20 min while stirring, after the reaction is finished, the intermediate solvent acetone is removed by reduced pressure distillation, water is added for emulsification, finally, ethylenediamine is added to remove unreacted NCO in the emulsion, the stirring is continued for 30 min, and the acetone is removed by reduced pressure. Finally, adding the auxiliary agent and the pigment, and fully stirring and mixing.
Various properties of the coating are as follows:
Performance of Data of Unit of
Coercive force 677.94 Oe
Specific saturation magnetization 82.85 Emu g-1
Viscosity of the oil 5508 mPa·s
Softening point 98±3 ℃
Hot melt viscosity 800±500 mPa·s
peel strength 0.750 N/mm
Shear strength 3.8 MPa
Oxygen index 29 ％
The waterborne polyurethane coating disclosed by the invention has excellent performance and can be widely applied to various industrial fields.
Detailed description of the invention
The present invention is further described in the following description of the specific embodiments, which is not intended to limit the invention, but various modifications and improvements can be made by those skilled in the art according to the basic idea of the invention, within the scope of the invention, as long as they do not depart from the basic idea of the invention.
The first embodiment is as follows:
75 parts by weight of PEG-1000, 23 parts by weight of IPDI and 20 parts by weight of flame retardant FRC-6 after vacuum dehydration were poured in a three-necked flask, and then polymerization was carried out by slowly raising the temperature to about 90 ℃ with moderate stirring, wherein the reaction time was about 3 hours. After the reaction is completed, the reaction mixture is cooled to below sixty degrees within 1 minute, otherwise a series of side reactions may occur. Adding acetone to reduce viscosity, adding hydrophilic chain extender DMPA15 weight parts, chain extender diethylene glycol 11 weight parts, and dibutyl tin dilaurate serving as a catalyst in a temperature range of 65-70 ℃ to react until-NCO (isocyanate) groups start to be stable, and then cooling to 35 ℃ to obtain the desired prepolymer. Under the condition of high shearing force, while stirring, accurately and slowly dripping 12 parts by weight of silane coupling agent (N-aminoethyl-3-aminopropyl methyl dimethoxy silane) by a dropper, then stirring and reacting for 15-20 min, after the reaction is finished, carrying out reduced pressure distillation to remove an intermediate solvent acetone, adding water for emulsification, finally adding ethylenediamine to remove unreacted NCO in the emulsion, continuing stirring for 30 min, and removing the acetone under reduced pressure. Finally, adding the defoaming agent and the titanium dioxide, and fully stirring and mixing.
Various properties of the resulting coating:
Performance of Data of Unit of
Coercive force 677.94 Oe
Specific saturation magnetization 82.85 Emu g-1
Viscosity of the oil 5508 mPa·s
Softening point 98±3 ℃
Hot melt viscosity 800±500 mPa·s
Peel strength 0.750 N/mm
Shear strength 3.8 MPa
Oxygen index 29 ％
The second embodiment:
45 parts by weight of polyether polyol (N210) after vacuum dehydration, 8 parts by weight of MDI and 6 parts by weight of melamine as a flame retardant were poured in a three-necked flask, and then polymerization was carried out by slowly raising the temperature to about 90 ℃ with moderate stirring, and the reaction time was about 3 hours. After the reaction is completed, the reaction mixture is cooled to below sixty degrees within 1 minute, otherwise a series of side reactions may occur. Adding acetone to reduce viscosity, adding a hydrophilic chain extender DMPA5 weight part, a chain extender trimethylolpropane 4 weight part and stannous octoate serving as a catalyst in a temperature range of 65-70 ℃ to react until a-NCO (isocyanate group) group begins to be stable, and then cooling to 35 ℃ to obtain the desired prepolymer. Under the condition of high shearing force, a titanate coupling agent is accurately and slowly dripped by a dropper while stirring, then the reaction is carried out for 15-20 min while stirring, after the reaction is finished, reduced pressure distillation is carried out to remove an intermediate solvent acetone and add water for emulsification, finally ethylenediamine is added to remove unreacted NCO in the emulsion, the stirring is continued for 30 min, and the acetone is removed under reduced pressure. Finally, the flatting agent and the chrome yellow powder are added and fully stirred and mixed.
various properties of the resulting coating:
Performance of Data of Unit of
Coercive force 677.94 Oe
Specific saturation magnetization 82.85 Emu g-1
Viscosity of the oil 5508 mPa·s
Softening point 98±3 ℃
hot melt viscosity 800±500 mPa·s
peel strength 0.750 N/mm
Shear strength 3.8 MPa
Oxygen index 29 ％
The third embodiment is as follows:
56 parts by weight of PBA-2000, 18 parts by weight of HDI, 17 parts by weight of an intumescent flame retardant and the like after vacuum dehydration were poured in a three-necked flask in a measured amount, and then polymerization was carried out while slowly raising the temperature to about 90 ℃ with moderate stirring, and the reaction time taken was about 3 hours. After the reaction is completed, the reaction mixture is cooled to below sixty degrees within 1 minute, otherwise a series of side reactions may occur. Adding acetone to reduce viscosity, adding hydrophilic chain extender DMPA11 weight parts, chain extender 1, 4-butanediol 10 weight parts, stannous octoate and dibutyltin dilaurate serving as catalysts in a few drops, reacting at a temperature range of 65-70 ℃ until a-NCO (isocyanate group) group begins to be stable, and then cooling to 35 ℃ to obtain the desired prepolymer. Under the condition of high shearing force, slowly dripping a chromium complex coupling agent by using a dropper accurately while stirring, then reacting for 15-20 min while stirring, after the reaction is finished, carrying out reduced pressure distillation to remove an intermediate solvent acetone and add water for emulsification, finally adding ethylenediamine to remove unreacted NCO in the emulsion, continuing stirring for 30 min, and removing the acetone under reduced pressure. Finally, adding the substrate wetting agent and the calcium carbonate, and fully stirring and mixing.
Various properties of the resulting coating:
Performance of Data of unit of
Coercive force 677.94 Oe
Specific saturation magnetization 82.85 Emu g-1
Viscosity of the oil 5508 mPa·s
Softening point 98±3 ℃
Hot melt viscosity 800±500 mPa·s
Peel strength 0.750 N/mm
shear strength 3.8 MPa
Oxygen index 29 ％

Claims (10)

1. A magnetic flame-retardant waterborne polyurethane coating is characterized by comprising the following raw material components:
4-32 parts of isocyanate, 32-85 parts of macromolecular polyol, 1-16 parts of chain extender, 2-14 parts of coupling agent, 4-26 parts of flame retardant, 2-72 parts of magnetic material, 3-23 parts of dimethylolpropionic acid, 2-20 parts of auxiliary agent and 1-18 parts of pigment.
2. The magnetic flame-retardant waterborne polyurethane coating as claimed in claim 1, wherein the raw material components comprise:
9-23 parts of isocyanate, 47-76 parts of macromolecular polyol, 9-12 parts of chain extender, 6-12 parts of coupling agent, 8-20 parts of flame retardant, 4-70 parts of magnetic material, 9-18 parts of dimethylolpropionic acid, 5-18 parts of auxiliary agent and 3-17 parts of pigment.
3. The magnetic flame-retardant waterborne polyurethane coating according to claim 1, wherein the isocyanate is one or more selected from the group consisting of toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate, and lysine diisocyanate, and is not limited to these isocyanates.
4. A magnetic flame retardant waterborne polyurethane coating as claimed in claim 1 wherein said polyol is one or more of polycaprolactone based polyols, polyoxypropylene polyols, polycarbonate polyols.
5. The magnetic flame-retardant waterborne polyurethane coating as claimed in claim 1, wherein the coupling agent is one or more of an organic chromium complex, a silane coupling agent, a titanate coupling agent and an aluminate compound.
6. The magnetic flame-retardant waterborne polyurethane coating as claimed in claim 1, wherein the pigment is one or more of a coloring pigment, titanium dioxide, chrome yellow, extender pigment, calcium carbonate and talc.
7. The magnetic flame-retardant waterborne polyurethane coating as claimed in claim 1, wherein the auxiliary agent is one or more of a defoaming agent, a leveling agent and a substrate wetting agent.
8. the magnetic flame-retardant waterborne polyurethane coating as claimed in claim 1, wherein the flame retardant is one or more of halogen flame retardant, phosphorus flame retardant, nitrogen flame retardant and inorganic flame retardant.
9. the magnetic flame-retardant waterborne polyurethane coating as claimed in claim 1, wherein the chain extender is one or more of trimethylolpropane, diethylene glycol, triethylene glycol, neopentyl glycol, sorbitol, diethylaminoethanol, 1, 4-butanediol, 1, 6-hexanediol, glycerol, hydroquinone-di (. beta. -hydroxyethyl) ether, and ethylenediamine.
10. The magnetic flame-retardant waterborne polyurethane coating as claimed in claim 1, wherein the magnetic material is one or more of iron, cobalt, nickel and other ferrite-containing materials with particle sizes in nanometer and micron ranges.
CN201910895828.0A 2019-09-21 2019-09-21 Magnetic flame-retardant waterborne polyurethane coating and application thereof Pending CN110551446A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5330669A (en) * 1988-10-28 1994-07-19 Kyowa Hakko Kogyo Co., Ltd. Magnetic coating formulations
CN102241942A (en) * 2011-06-30 2011-11-16 江苏中科金龙化工有限公司 Poly(propylene carbonate)-based polyurethane fireproof coating and preparation method thereof
CN107099240A (en) * 2017-06-02 2017-08-29 河北科技大学 A kind of multifunctional modification aqueous polyurethane coating material and preparation method thereof
CN108250926A (en) * 2018-01-09 2018-07-06 昆明理工大学 A kind of soft magnetism coating
CN110157351A (en) * 2019-06-13 2019-08-23 慧迈材料科技(广东)有限公司 A kind of flame-proof heat-resistant conduction Aqueous Adhesives and its application

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5330669A (en) * 1988-10-28 1994-07-19 Kyowa Hakko Kogyo Co., Ltd. Magnetic coating formulations
CN102241942A (en) * 2011-06-30 2011-11-16 江苏中科金龙化工有限公司 Poly(propylene carbonate)-based polyurethane fireproof coating and preparation method thereof
CN107099240A (en) * 2017-06-02 2017-08-29 河北科技大学 A kind of multifunctional modification aqueous polyurethane coating material and preparation method thereof
CN108250926A (en) * 2018-01-09 2018-07-06 昆明理工大学 A kind of soft magnetism coating
CN110157351A (en) * 2019-06-13 2019-08-23 慧迈材料科技(广东)有限公司 A kind of flame-proof heat-resistant conduction Aqueous Adhesives and its application

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