CN110643013A - Novel synthetic leather material and preparation method thereof - Google Patents
Novel synthetic leather material and preparation method thereof Download PDFInfo
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- CN110643013A CN110643013A CN201910948969.4A CN201910948969A CN110643013A CN 110643013 A CN110643013 A CN 110643013A CN 201910948969 A CN201910948969 A CN 201910948969A CN 110643013 A CN110643013 A CN 110643013A
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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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/6505—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6523—Compounds of group C08G18/3225 or C08G18/3271 or polyamines of C08G18/38
- C08G18/6529—Compounds of group C08G18/3225 or polyamines of C08G18/38
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
- C08G18/3228—Polyamines acyclic
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
- C08G18/3228—Polyamines acyclic
- C08G18/3231—Hydrazine or derivatives thereof
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
- C08G18/3234—Polyamines cycloaliphatic
-
- 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
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a novel synthetic leather material and a preparation method thereof, wherein the novel synthetic leather material is waterborne polyurethane and is prepared from the following raw materials: 25-40% of macromolecular polyol, 15-25% of isocyanate, 10-15% of dibutyltin dilaurate, 5-15% of triethylamine, 2-6% of chain extender and 5-15% of thickener.
Description
Technical Field
The invention relates to the technical field of synthetic leather, in particular to a novel synthetic leather material and a preparation method thereof.
Background
In the current daily life, the synthetic leather is very commonly used, can simulate the characteristics of natural leather, is beneficial to large-scale production and processing, and is popular with consumers.
However, the existing synthetic leather material has the disadvantages of complex used material components, high cost, unreasonable material structure ratio, influence on the basic performance of the synthetic leather, and no contribution to preparation and production, and a novel material is needed to reduce the cost and improve the performance.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a novel synthetic leather material and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the novel synthetic leather material is waterborne polyurethane and is prepared from the following raw materials: 25-40% of macromolecular polyol, 15-25% of isocyanate, 10-15% of dibutyltin dilaurate, 5-15% of triethylamine, 2-6% of chain extender and 5-15% of thickener.
Preferably, the preparation method of the waterborne polyurethane comprises the following steps:
s1, adding the macromolecular polyol and the isocyanate into a reactor, and uniformly stirring and mixing to obtain a first mixture;
s2, heating the first mixture to 120-130 ℃ under the protection of nitrogen atmosphere, and dehydrating for 2-3 hours to obtain a dehydrated mixture;
s3, cooling the dehydrated mixture to 80-85 ℃, adding isocyanate, dibutyltin dilaurate and triethylamine, and reacting for 3-4 hours under heat preservation to obtain a second mixture;
s4, cooling the second mixture to 50-60 ℃, adding a chain extender, uniformly mixing, and extending the chain for 30-45 minutes to obtain a waterborne polyurethane raw material;
s5, adding the thickening agent into the aqueous polyurethane raw material, and adjusting the consistency to obtain the aqueous polyurethane.
Preferably, the nitrogen atmosphere pressure of the step S2 is 0.05MPa to 0.06 MPa.
Preferably, the step S3 further comprises stirring at a constant speed of 20 to 30 revolutions per minute.
Preferably, the chain extender comprises any one or more of ethylene diamine, hydrazine hydrate and diaminodicyclohexylmethane.
Preferably, the thickener comprises 30% -60% of polyethylene glycol, 10% -20% of hexamethylene isocyanate, 10% -15% of glycerol, 20% -30% of ethylene glycol monomethyl ether and 1% -3% of a tin octoate catalyst.
Preferably, the preparation method of the thickening agent comprises the following steps:
p1, respectively heating polyethylene glycol and hexamethylene isocyanate to 60-70 ℃ for later use;
p2, adding polyethylene glycol into a reactor, introducing argon for protection, heating to 80-90 ℃, preserving heat for 20-30 minutes, adding standby hexamethylene isocyanate, heating to 110-120 ℃, and reacting for 1-2 hours to obtain a first mixture;
p3, adding glycerol into the first mixture, introducing a tin octoate catalyst, heating to 130-140 ℃, and reacting for 3-4 hours to obtain a second mixture;
and P4, cooling the second mixture to 50-60 ℃, adding ethylene glycol monomethyl ether, and uniformly stirring for 20-30 minutes to obtain the thickener.
According to the novel synthetic leather material and the preparation method thereof, the aqueous polyurethane material is used, the structural performance is excellent, the leather material is good, the manufacturing process can be simplified through reasonable material proportion, the control operation is facilitated, the large-scale preparation is facilitated, meanwhile, the raw materials can be guaranteed to be diversified through adding the thickening agent for blending, and the large-scale popularization and use are facilitated.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The novel synthetic leather material is waterborne polyurethane and is prepared from the following raw materials: 25-40% of macromolecular polyol, 15-25% of isocyanate, 10-15% of dibutyltin dilaurate, 5-15% of triethylamine, 2-6% of chain extender and 5-15% of thickener.
Preferably, the preparation method of the waterborne polyurethane comprises the following steps:
s1, adding the macromolecular polyol and the isocyanate into a reactor, and uniformly stirring and mixing to obtain a first mixture;
s2, heating the first mixture to 120-130 ℃ under the protection of nitrogen atmosphere, and dehydrating for 2-3 hours to obtain a dehydrated mixture;
s3, cooling the dehydrated mixture to 80-85 ℃, adding isocyanate, dibutyltin dilaurate and triethylamine, and reacting for 3-4 hours under heat preservation to obtain a second mixture;
s4, cooling the second mixture to 50-60 ℃, adding a chain extender, uniformly mixing, and extending the chain for 30-45 minutes to obtain a waterborne polyurethane raw material;
s5, adding the thickening agent into the aqueous polyurethane raw material, and adjusting the consistency to obtain the aqueous polyurethane.
Preferably, the nitrogen atmosphere pressure in the step S2 is 0.05MPa to 0.06 MPa.
Preferably, the step S3 further comprises stirring at a constant speed of 20 to 30 revolutions per minute.
Preferably, the chain extender comprises any one or more of ethylene diamine, hydrazine hydrate and diaminodicyclohexylmethane.
Preferably, the thickening agent comprises 30-60% of polyethylene glycol, 10-20% of hexamethylene isocyanate, 10-15% of glycerol, 20-30% of ethylene glycol monomethyl ether and 1-3% of tin octoate catalyst.
Preferably, the preparation method of the thickening agent comprises the following steps:
p1, respectively heating polyethylene glycol and hexamethylene isocyanate to 60-70 ℃ for later use;
p2, adding polyethylene glycol into a reactor, introducing argon for protection, heating to 80-90 ℃, preserving heat for 20-30 minutes, adding standby hexamethylene isocyanate, heating to 110-120 ℃, and reacting for 1-2 hours to obtain a first mixture;
p3, adding glycerol into the first mixture, introducing a tin octoate catalyst, heating to 130-140 ℃, and reacting for 3-4 hours to obtain a second mixture;
and P4, cooling the second mixture to 50-60 ℃, adding ethylene glycol monomethyl ether, and uniformly stirring for 20-30 minutes to obtain the thickener.
According to the novel synthetic leather material and the preparation method thereof, the aqueous polyurethane material is used, the structural performance is excellent, the leather material is good, the manufacturing process can be simplified through reasonable material proportion, the control operation is facilitated, the large-scale preparation is facilitated, meanwhile, the raw materials can be guaranteed to be diversified through adding the thickening agent for blending, and the large-scale popularization and use are facilitated.
Example 1
The novel synthetic leather material is waterborne polyurethane and is prepared from the following raw materials: 40% of macromolecular polyol, 15% of isocyanate, 15% of dibutyltin dilaurate, 10% of triethylamine, 5% of chain extender and 15% of thickener.
Preferably, the preparation method of the waterborne polyurethane comprises the following steps:
s1, adding the macromolecular polyol and the isocyanate into a reactor, and uniformly stirring and mixing to obtain a first mixture;
s2, heating the first mixture to 120-130 ℃ under the protection of nitrogen atmosphere, and dehydrating for 2-3 hours to obtain a dehydrated mixture;
s3, cooling the dehydrated mixture to 80-85 ℃, adding isocyanate, dibutyltin dilaurate and triethylamine, and reacting for 3-4 hours under heat preservation to obtain a second mixture;
s4, cooling the second mixture to 50-60 ℃, adding a chain extender, uniformly mixing, and extending the chain for 30-45 minutes to obtain a waterborne polyurethane raw material;
s5, adding the thickening agent into the aqueous polyurethane raw material, and adjusting the consistency to obtain the aqueous polyurethane.
Preferably, the nitrogen atmosphere pressure in the step S2 is 0.05MPa to 0.06 MPa.
Preferably, the step S3 further comprises stirring at a constant speed of 20 to 30 revolutions per minute.
Preferably, the chain extender comprises any one or more of ethylene diamine, hydrazine hydrate and diaminodicyclohexylmethane.
Preferably, the thickener comprises 53% of polyethylene glycol, 15% of hexamethylene isocyanate, 10% of glycerol, 20% of ethylene glycol monomethyl ether and 2% of tin octoate catalyst.
Preferably, the preparation method of the thickening agent comprises the following steps:
p1, respectively heating polyethylene glycol and hexamethylene isocyanate to 60-70 ℃ for later use;
p2, adding polyethylene glycol into a reactor, introducing argon for protection, heating to 80-90 ℃, preserving heat for 20-30 minutes, adding standby hexamethylene isocyanate, heating to 110-120 ℃, and reacting for 1-2 hours to obtain a first mixture;
p3, adding glycerol into the first mixture, introducing a tin octoate catalyst, heating to 130-140 ℃, and reacting for 3-4 hours to obtain a second mixture;
and P4, cooling the second mixture to 50-60 ℃, adding ethylene glycol monomethyl ether, and uniformly stirring for 20-30 minutes to obtain the thickener.
Example 2
The novel synthetic leather material is waterborne polyurethane and is prepared from the following raw materials: 34% of macromolecular polyol, 20% of isocyanate, 15% of dibutyltin dilaurate, 15% of triethylamine, 6% of chain extender and 10% of thickener.
Preferably, the preparation method of the waterborne polyurethane comprises the following steps:
s1, adding the macromolecular polyol and the isocyanate into a reactor, and uniformly stirring and mixing to obtain a first mixture;
s2, heating the first mixture to 120-130 ℃ under the protection of nitrogen atmosphere, and dehydrating for 2-3 hours to obtain a dehydrated mixture;
s3, cooling the dehydrated mixture to 80-85 ℃, adding isocyanate, dibutyltin dilaurate and triethylamine, and reacting for 3-4 hours under heat preservation to obtain a second mixture;
s4, cooling the second mixture to 50-60 ℃, adding a chain extender, uniformly mixing, and extending the chain for 30-45 minutes to obtain a waterborne polyurethane raw material;
s5, adding the thickening agent into the aqueous polyurethane raw material, and adjusting the consistency to obtain the aqueous polyurethane.
Preferably, the nitrogen atmosphere pressure in the step S2 is 0.05MPa to 0.06 MPa.
Preferably, the step S3 further comprises stirring at a constant speed of 20 to 30 revolutions per minute.
Preferably, the chain extender comprises any one or more of ethylene diamine, hydrazine hydrate and diaminodicyclohexylmethane.
Preferably, the thickener comprises 50% of polyethylene glycol, 10% of diisocyanate, 15% of dimethylacetamide, 20% of ethyl acetate solvent, 3% of monoethanolamine and 2% of tin octoate catalyst.
Preferably, the preparation method of the thickening agent comprises the following steps:
p1, adding polyethylene glycol into a reaction kettle, heating to 120-125 ℃, dehydrating for 30-45 minutes, and introducing argon for protection to obtain treated polyethylene glycol for later use;
p2, adding polyethylene glycol into a reactor, cooling to 80-90 ℃, keying in a tin octoate catalyst and diisocyanate, and reacting for 1-2 hours to obtain a first mixture;
p3, adding dimethylacetamide into the first mixture, and reacting for 30-50 minutes under the condition of heat preservation to obtain a second mixture;
and P4, cooling the second mixture to 40-50 ℃, adding an ethyl acetate solvent and monoethanolamine, and uniformly stirring for 20-30 minutes to obtain the thickener.
Claims (7)
1. A novel synthetic leather material and a preparation method thereof are characterized in that: the novel synthetic leather material is waterborne polyurethane and is prepared from the following raw materials: 25-40% of macromolecular polyol, 15-25% of isocyanate, 10-15% of dibutyltin dilaurate, 5-15% of triethylamine, 2-6% of chain extender and 5-15% of thickener.
2. A novel synthetic leather material and a method for preparing the same according to claim 1, characterized in that: the preparation method of the waterborne polyurethane comprises the following steps:
s1, adding the macromolecular polyol and the isocyanate into a reactor, and uniformly stirring and mixing to obtain a first mixture;
s2, heating the first mixture to 120-130 ℃ under the protection of nitrogen atmosphere, and dehydrating for 2-3 hours to obtain a dehydrated mixture;
s3, cooling the dehydrated mixture to 80-85 ℃, adding isocyanate, dibutyltin dilaurate and triethylamine, and reacting for 3-4 hours under heat preservation to obtain a second mixture;
s4, cooling the second mixture to 50-60 ℃, adding a chain extender, uniformly mixing, and extending the chain for 30-45 minutes to obtain a waterborne polyurethane raw material;
s5, adding the thickening agent into the aqueous polyurethane raw material, and adjusting the consistency to obtain the aqueous polyurethane.
3. A novel synthetic leather material according to claim 2 and a method for its preparation, characterized in that: and the pressure of the nitrogen atmosphere in the step S2 is 0.05MPa to 0.06 MPa.
4. A novel synthetic leather material according to claim 2 and a method for its preparation, characterized in that: the step S3 further includes stirring at a constant speed of 20 to 30 revolutions per minute.
5. A novel synthetic leather material and a method for preparing the same according to claim 1, characterized in that: the chain extender comprises any one or more of ethylenediamine, hydrazine hydrate and diaminodicyclohexylmethane.
6. A novel synthetic leather material and a method for preparing the same according to claim 1, characterized in that: the thickening agent comprises 30-60% of polyethylene glycol, 10-20% of hexamethylene isocyanate, 10-15% of glycerol, 20-30% of ethylene glycol monomethyl ether and 1-3% of a tin octoate catalyst.
7. A novel synthetic leather material according to claim 6 and a method for its preparation, characterized in that: the preparation method of the thickening agent comprises the following steps:
p1, respectively heating polyethylene glycol and hexamethylene isocyanate to 60-70 ℃ for later use;
p2, adding polyethylene glycol into a reactor, introducing argon for protection, heating to 80-90 ℃, preserving heat for 20-30 minutes, adding standby hexamethylene isocyanate, heating to 110-120 ℃, and reacting for 1-2 hours to obtain a first mixture;
p3, adding glycerol into the first mixture, introducing a tin octoate catalyst, heating to 130-140 ℃, and reacting for 3-4 hours to obtain a second mixture;
and P4, cooling the second mixture to 50-60 ℃, adding ethylene glycol monomethyl ether, and uniformly stirring for 20-30 minutes to obtain the thickener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910948969.4A CN110643013A (en) | 2019-10-08 | 2019-10-08 | Novel synthetic leather material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910948969.4A CN110643013A (en) | 2019-10-08 | 2019-10-08 | Novel synthetic leather material and preparation method thereof |
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| CN110643013A true CN110643013A (en) | 2020-01-03 |
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| CN201910948969.4A Pending CN110643013A (en) | 2019-10-08 | 2019-10-08 | Novel synthetic leather material and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206410A (en) * | 2011-04-21 | 2011-10-05 | 常州大学 | Preparation method of high-solid-content aqueous polyurethane for leather |
| CN102492110A (en) * | 2011-12-07 | 2012-06-13 | 富思特新材料科技有限公司 | Preparation method for waterborne polyurethane applied to elastic coating |
| CN102702466A (en) * | 2012-06-20 | 2012-10-03 | 温州市宏得利树脂有限公司 | Preparation method of aqueous polyurethane emulsion for synthetic leather |
| CN106928421A (en) * | 2017-04-13 | 2017-07-07 | 合肥科天水性科技有限责任公司 | A kind of clothing leather soft bed material and preparation method thereof |
| CN106947048A (en) * | 2017-04-13 | 2017-07-14 | 合肥科天水性科技有限责任公司 | It is a kind of for waterborne polyurethane resin of aqueous clothing leather bass and preparation method thereof |
| CN109096466A (en) * | 2018-07-17 | 2018-12-28 | 合肥科天水性科技有限责任公司 | A kind of preparation method of biology base water polyurethane bass |
| CN109503800A (en) * | 2018-10-30 | 2019-03-22 | 合肥科天水性科技有限责任公司 | A kind of modified aqueous polyurethane and preparation method thereof |
-
2019
- 2019-10-08 CN CN201910948969.4A patent/CN110643013A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206410A (en) * | 2011-04-21 | 2011-10-05 | 常州大学 | Preparation method of high-solid-content aqueous polyurethane for leather |
| CN102492110A (en) * | 2011-12-07 | 2012-06-13 | 富思特新材料科技有限公司 | Preparation method for waterborne polyurethane applied to elastic coating |
| CN102702466A (en) * | 2012-06-20 | 2012-10-03 | 温州市宏得利树脂有限公司 | Preparation method of aqueous polyurethane emulsion for synthetic leather |
| CN106928421A (en) * | 2017-04-13 | 2017-07-07 | 合肥科天水性科技有限责任公司 | A kind of clothing leather soft bed material and preparation method thereof |
| CN106947048A (en) * | 2017-04-13 | 2017-07-14 | 合肥科天水性科技有限责任公司 | It is a kind of for waterborne polyurethane resin of aqueous clothing leather bass and preparation method thereof |
| CN109096466A (en) * | 2018-07-17 | 2018-12-28 | 合肥科天水性科技有限责任公司 | A kind of preparation method of biology base water polyurethane bass |
| CN109503800A (en) * | 2018-10-30 | 2019-03-22 | 合肥科天水性科技有限责任公司 | A kind of modified aqueous polyurethane and preparation method thereof |
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Application publication date: 20200103 |