CN111138632A - Production method of bio-based solvent-free polyurethane - Google Patents
Production method of bio-based solvent-free polyurethane Download PDFInfo
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- CN111138632A CN111138632A CN201911320210.8A CN201911320210A CN111138632A CN 111138632 A CN111138632 A CN 111138632A CN 201911320210 A CN201911320210 A CN 201911320210A CN 111138632 A CN111138632 A CN 111138632A
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- free polyurethane
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- 229920002635 polyurethane Polymers 0.000 title claims abstract description 33
- 239000004814 polyurethane Substances 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 229920013724 bio-based polymer Polymers 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000004970 Chain extender Substances 0.000 claims abstract description 8
- 235000001014 amino acid Nutrition 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 8
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- LCPNYLRZLNERIG-ZETCQYMHSA-N (2S)-6-amino-2-[2-(oxomethylidene)hydrazinyl]hexanoyl isocyanate Chemical compound NCCCC[C@H](NN=C=O)C(=O)N=C=O LCPNYLRZLNERIG-ZETCQYMHSA-N 0.000 claims abstract description 4
- AYLRODJJLADBOB-QMMMGPOBSA-N methyl (2s)-2,6-diisocyanatohexanoate Chemical group COC(=O)[C@@H](N=C=O)CCCCN=C=O AYLRODJJLADBOB-QMMMGPOBSA-N 0.000 claims abstract description 4
- 231100000252 nontoxic Toxicity 0.000 claims abstract description 4
- 230000003000 nontoxic effect Effects 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 229920001610 polycaprolactone Polymers 0.000 claims abstract description 4
- 239000004632 polycaprolactone Substances 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 9
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- 229920000570 polyether Polymers 0.000 claims description 9
- 239000002270 dispersing agent Substances 0.000 claims description 7
- HILAULICMJUOLK-UHFFFAOYSA-N 1,3-diethyl-5-methylbenzene Chemical compound CCC1=CC(C)=CC(CC)=C1 HILAULICMJUOLK-UHFFFAOYSA-N 0.000 claims description 6
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 6
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 6
- -1 polydimethylsiloxane Polymers 0.000 claims description 6
- ZUFUSIMENKJSMG-UHFFFAOYSA-N 1-methyl-3,5-bis(methylsulfanyl)benzene Chemical compound CSC1=CC(C)=CC(SC)=C1 ZUFUSIMENKJSMG-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 3
- 150000003863 ammonium salts Chemical class 0.000 claims description 3
- 229910052797 bismuth Inorganic materials 0.000 claims description 3
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- RUOPINZRYMFPBF-UHFFFAOYSA-N pentane-1,3-diol Chemical compound CCC(O)CCO RUOPINZRYMFPBF-UHFFFAOYSA-N 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 239000012970 tertiary amine catalyst Substances 0.000 claims description 3
- 239000012974 tin catalyst Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007689 inspection Methods 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 230000008049 biological aging Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920006306 polyurethane fiber Polymers 0.000 description 1
- 239000004588 polyurethane sealant Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
Classifications
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
-
- 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
-
- 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
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
- C08G18/4277—Caprolactone and/or substituted caprolactone
-
- 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
- C08G18/6633—Compounds of group C08G18/42
-
- 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
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6644—Compounds of group C08G18/42 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
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6648—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6655—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a production method of bio-based solvent-free polyurethane, which comprises the following steps: s1: adding the bio-based polymer, polycaprolactone, amino acid diisocyanate, a processing agent, an auxiliary agent and auxiliary materials into a reaction kettle, and uniformly stirring to obtain a mixture; s2: and detecting the obtained mixture, after the obtained mixture is qualified through inspection, filtering and packaging, subpackaging and storing according to weight, wherein the viscosity of the bio-based polymer is less than 3000mPa.s, the content of the bio-based raw material is more than 60 percent, the bio-based raw material is one or more than two of Sovermol1092, Sovermol810 and Sovermol760, the bio-based raw material is mixed according to any ratio and does not contain a solvent, the amino acid diisocyanate is lysine diisocyanate or L-lysine diisocyanate and is a degradable and nontoxic material, and the processing agent comprises a cross-linking agent and a chain extender. The production method of the bio-based solvent-free polyurethane can improve the reaction effect and efficiency and improve the overall quality.
Description
Technical Field
The invention belongs to the technical field of polyurethane production, and particularly relates to a production method of bio-based solvent-free polyurethane.
Background
Polyurethane is short for polyurethane, and is called polyurethane in English, which is a high molecular material. Polyurethane is a new organic polymer material, is known as 'fifth major plastic', and is widely applied to various fields of national economy due to excellent performance. Polyurethane is a high molecular material. The coating can be widely applied to daily life such as paint and coating in furniture, refrigerators and freezers in household appliances, roof waterproof heat-insulating layers and inner and outer wall coatings in the building industry and the like. Can also be made into various polyurethane materials such as polyurethane soles, polyurethane fibers, polyurethane sealant and the like. Generally speaking, the polyurethane product has wide adjustable range of performance, strong adaptability, biological aging resistance and moderate price, and the production efficiency of the bio-based polyurethane production is reduced, thereby influencing the normal production requirement.
Therefore, in order to meet the current situation, the design and production method of bio-based solvent-free polyurethane are urgently needed to meet the requirement of practical use.
Disclosure of Invention
The invention aims to provide a production method of bio-based solvent-free polyurethane, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a method for producing bio-based solvent-free polyurethane comprises the following steps:
s1: adding the bio-based polymer, polycaprolactone, amino acid diisocyanate, a processing agent, an auxiliary agent and auxiliary materials into a reaction kettle, and uniformly stirring to obtain a mixture;
s2: and detecting the obtained mixture, filtering and packaging after the mixture is qualified, and subpackaging and storing according to the weight.
Preferably, the viscosity of the bio-based polymer is less than 3000mPa.s, the content of the bio-based raw material is more than 60%, and the bio-based raw material is one or more than two of Sovermol1092, Sovermol810 and Sovermol760 which are mixed according to any ratio and do not contain solvent.
Preferably, the amino acid diisocyanate is lysine diisocyanate or L-lysine diisocyanate, and both are degradable and nontoxic materials.
Preferably, the processing agent comprises a cross-linking agent and a chain extender, wherein the cross-linking agent is one or a mixture of more than one of glycerol, trimethylolpropane, pentaerythritol, triethanolamine and diethanolamine.
Preferably, the chain extender is one or a mixture of more than two of 3, 3-dichloro-4, 4-diphenylmethane diamine, 3, 5-dimethylthiotoluene diamine, 3, 5-diethyltoluene diamine, ethylene glycol, propylene glycol, 1, 4-butanediol, diethylene glycol, dipropylene glycol and 1, 3-pentanediol.
Preferably, the auxiliary agent comprises a dispersing agent and a leveling agent, the dispersing agent is polyacrylic acid ammonium salt, an organic silicon surfactant or polyether siloxane copolymer, and the leveling agent is polyether polyurethane, polyether modified polydimethylsiloxane or polyester modified polydimethylsiloxane.
Preferably, the auxiliary material is a catalyst and a coupling agent, the catalyst is one or a mixture of more than one of an organic tin catalyst, an organic bismuth catalyst and a tertiary amine catalyst, and the coupling agent is gamma-23-glycidoxypropyltrimethoxysilane.
Preferably, the rotation speed of the stirring is set to 200-300 revolutions per minute, the stirring temperature is set to 40-60 ℃, and the stirring time is set to 6-12 minutes.
Preferably, the mesh number of the filtering net is set to be 120 meshes, and the material of the filtering net is set to be a material which does not react with the mixture.
The invention has the technical effects and advantages that: according to the production method of the bio-based solvent-free polyurethane, the arrangement of the cross-linking agent and the chain extender can improve the overall reaction speed and the overall effect, and the arrangement of the catalyst can improve the overall reaction efficiency; the dispersing agent and the leveling agent can improve the effect of the mixture after reaction and improve the overall quality of the mixture; the filtering of the mixture can improve the overall fineness and the overall quality, and the production method of the bio-based solvent-free polyurethane can improve the reaction effect and efficiency and improve the overall quality.
Detailed Description
The technical solutions in the present disclosure will be clearly and completely described below with reference to the present disclosure, and it is obvious that the described contents are only a part of the present disclosure, and not all of the present disclosure. All other matters which can be obtained by a person skilled in the art without making creative efforts based on the contents of the present invention belong to the protection scope of the present invention.
The invention provides a production method of bio-based solvent-free polyurethane, which comprises the following steps:
s1: adding the bio-based polymer, polycaprolactone, amino acid diisocyanate, a processing agent, an auxiliary agent and auxiliary materials into a reaction kettle, and uniformly stirring to obtain a mixture;
s2: and detecting the obtained mixture, filtering and packaging after the mixture is qualified, and subpackaging and storing according to the weight.
Specifically, the viscosity of the bio-based polymer is less than 3000mPa.s, the content of the bio-based raw material is more than 60%, and the bio-based raw material is one or more than two of Sovermol1092, Sovermol810 and Sovermol760 which are mixed according to any ratio and do not contain solvents.
Specifically, the amino acid diisocyanate is lysine diisocyanate or L-lysine diisocyanate, and is a degradable and nontoxic material.
Specifically, the processing agent comprises a cross-linking agent and a chain extender, wherein the cross-linking agent is one or a mixture of more than one of glycerol, trimethylolpropane, pentaerythritol, triethanolamine and diethanolamine.
Specifically, the chain extender is one or a mixture of more than two of 3, 3-dichloro-4, 4-diphenylmethane diamine, 3, 5-dimethylthiotoluene diamine, 3, 5-diethyltoluene diamine, ethylene glycol, propylene glycol, 1, 4-butanediol, diethylene glycol, dipropylene glycol and 1, 3-pentanediol.
Specifically, the auxiliary agent comprises a dispersing agent and a leveling agent, the dispersing agent is polyacrylic acid ammonium salt, an organic silicon surfactant or polyether siloxane copolymer, and the leveling agent is polyether polyurethane, polyether modified polydimethylsiloxane or polyester modified polydimethylsiloxane.
Specifically, the auxiliary material is a catalyst and a coupling agent, the catalyst is one or a mixture of more than one of an organic tin catalyst, an organic bismuth catalyst and a tertiary amine catalyst, and the coupling agent is gamma-23-glycidoxypropyltrimethoxysilane.
Specifically, the rotation speed of the stirring is set to 200-300 revolutions per minute, the stirring temperature is set to 40-60 ℃, and the stirring time is set to 6-12 minutes.
Specifically, the mesh number of the filtering net is set to be 120 meshes, and the material of the filtering net is set to be a material which does not react with the mixture.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing description, it will be apparent to one skilled in the art that various changes, modifications, equivalents, and improvements may be made without departing from the spirit and scope of the invention.
Claims (9)
1. A production method of bio-based solvent-free polyurethane is characterized in that: the method comprises the following steps:
s1: adding the bio-based polymer, polycaprolactone, amino acid diisocyanate, a processing agent, an auxiliary agent and auxiliary materials into a reaction kettle, and uniformly stirring to obtain a mixture;
s2: and detecting the obtained mixture, filtering and packaging after the mixture is qualified, and subpackaging and storing according to the weight.
2. The method of claim 1 for producing a bio-based solvent-free polyurethane, wherein: the viscosity of the bio-based polymer is less than 3000mPa.s, the content of the bio-based raw material is more than 60%, the bio-based raw material is one or more than two of Sovermol1092, Sovermol810 and Sovermol760, and the bio-based polymer is mixed according to any ratio and does not contain a solvent.
3. The method for producing bio-based solvent-free polyurethane according to claim 1, wherein said amino acid diisocyanate is lysine diisocyanate or L-lysine diisocyanate, and both are degradable and non-toxic materials.
4. The method of claim 1 for producing a bio-based solvent-free polyurethane, wherein: the processing agent comprises a cross-linking agent and a chain extender, wherein the cross-linking agent is one or a mixture of more than one of glycerol, trimethylolpropane, pentaerythritol, triethanolamine and diethanolamine.
5. The method for producing bio-based solvent-free polyurethane according to claim 4, wherein: the chain extender is one or a mixture of more than two of 3, 3-dichloro-4, 4-diphenylmethane diamine, 3, 5-dimethylthio toluene diamine, 3, 5-diethyl toluene diamine, ethylene glycol, propylene glycol, 1, 4-butanediol, diethylene glycol, dipropylene glycol and 1, 3-pentanediol.
6. The method of claim 1 for producing a bio-based solvent-free polyurethane, wherein: the auxiliary agent comprises a dispersing agent and a leveling agent, wherein the dispersing agent is polyacrylic acid ammonium salt, an organic silicon surfactant or polyether siloxane copolymer, and the leveling agent is polyether polyurethane, polyether modified polydimethylsiloxane or polyester modified polydimethylsiloxane.
7. The method of claim 1 for producing a bio-based solvent-free polyurethane, wherein: the auxiliary material is a catalyst and a coupling agent, the catalyst is one or a mixture of more than one of an organic tin catalyst, an organic bismuth catalyst and a tertiary amine catalyst, and the coupling agent is gamma-23-glycidoxypropyltrimethoxysilane.
8. The method of claim 1 for producing a bio-based solvent-free polyurethane, wherein: the stirring speed is set to be 200-300 revolutions per minute, the stirring temperature is set to be 40-60 ℃, and the stirring time is set to be 6-12 minutes.
9. The method of claim 1 for producing a bio-based solvent-free polyurethane, wherein: the mesh number of the filtering net is set to be 120 meshes, and the material of the filtering net is set to be a material which does not react with the mixture.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911320210.8A CN111138632A (en) | 2019-12-19 | 2019-12-19 | Production method of bio-based solvent-free polyurethane |
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| CN201911320210.8A CN111138632A (en) | 2019-12-19 | 2019-12-19 | Production method of bio-based solvent-free polyurethane |
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| CN111138632A true CN111138632A (en) | 2020-05-12 |
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| JP2012062370A (en) * | 2010-09-14 | 2012-03-29 | Bridgestone Corp | Biodegradable polyurethane |
| CN108059706A (en) * | 2017-12-18 | 2018-05-22 | 苏州浩洋聚氨酯科技有限公司 | Biodegradable polyurethane and preparation method thereof |
| CN108276551A (en) * | 2017-12-26 | 2018-07-13 | 合肥科天水性科技有限责任公司 | A kind of multiple cross-linked modified aqueous polyurethane resin of biology base and its preparation method and application |
| CN109438653A (en) * | 2018-10-26 | 2019-03-08 | 万华化学集团股份有限公司 | A kind of bion thermoplastic polyurethane elastomer and preparation method thereof |
| CN109504266A (en) * | 2018-10-18 | 2019-03-22 | 信和新材料股份有限公司 | A kind of quick-drying no-solvent polyurethane paint and preparation method thereof modified based on bio-based polymers |
-
2019
- 2019-12-19 CN CN201911320210.8A patent/CN111138632A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012062370A (en) * | 2010-09-14 | 2012-03-29 | Bridgestone Corp | Biodegradable polyurethane |
| CN108059706A (en) * | 2017-12-18 | 2018-05-22 | 苏州浩洋聚氨酯科技有限公司 | Biodegradable polyurethane and preparation method thereof |
| CN108276551A (en) * | 2017-12-26 | 2018-07-13 | 合肥科天水性科技有限责任公司 | A kind of multiple cross-linked modified aqueous polyurethane resin of biology base and its preparation method and application |
| CN109504266A (en) * | 2018-10-18 | 2019-03-22 | 信和新材料股份有限公司 | A kind of quick-drying no-solvent polyurethane paint and preparation method thereof modified based on bio-based polymers |
| CN109438653A (en) * | 2018-10-26 | 2019-03-08 | 万华化学集团股份有限公司 | A kind of bion thermoplastic polyurethane elastomer and preparation method thereof |
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Application publication date: 20200512 |