CN105111399B - A kind of water pressure resistance waterborne polyurethane resin - Google Patents
A kind of water pressure resistance waterborne polyurethane resin Download PDFInfo
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- CN105111399B CN105111399B CN201510602882.3A CN201510602882A CN105111399B CN 105111399 B CN105111399 B CN 105111399B CN 201510602882 A CN201510602882 A CN 201510602882A CN 105111399 B CN105111399 B CN 105111399B
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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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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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
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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
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
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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
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
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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
- C08G18/66—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
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
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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
- C08G18/66—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
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6688—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
-
- 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
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
Abstract
The invention discloses a kind of water pressure resistance waterborne polyurethane resin, which is made of each component of following parts by weight: 50~100 parts of polyalcohol, 20~30 parts of polyisocyanates, 10~25 parts of hydrophilic amine chain extender, sour 5~8 parts, 0.5~5 part of terminator, 2~5 parts of stabilizer, 40~70 parts of organic solvent, 0.08~0.1 part of organo-bismuth.Material of the present invention has good weatherability, and moisture-inhibiting is good, the good comprehensive performance such as hydrolytic resistance, energy conservation, at low cost, safe, free from environmental pollution and the feature of environmental protection outstanding；Using the textile hydrostatic pressure intensity of ordinary resin coating up to 9000~10000Pa, it is higher than 12000Pa using the textile hydrostatic pressure intensity of this coating, the resistance to blocking using the fabric of resin provided by the present invention is good, and the moisture permeability of resin of the present invention is 19000g/m2.24h。
Description
Technical field
The present invention relates to a kind of polyurethane resin, specially a kind of water-fastness, low temperature resistant waterborne polyurethane resin.
Background technique
Polyurethane is a kind of novel synthetic material, due to its special molecular structure, had both rubber high resiliency and
The high intensity of plastics, thus no matter recent decades have all obtained quick development in application range or usage quantity.Poly- ammonia
Lipase absobed leather have soft glossy, natural, soft, the strong appearance of kishke feel, have with substrate adhesive property it is excellent, it is wear-resistant
Damage, flex endurant, the excellent performance such as anti-aging, resistance to fungi is good, while being also equipped with that cold resistance is good, ventilative, washable, processing side
Just, the advantages that price is excellent honest and clean is the ideal substitute of natural leather, be widely used in clothes, shoemaking, luggage, furniture,
The industries such as sport
Polyurethane resin main chain is that the soft segment and glass transition temperature by glass transition temperature lower than room temperature are higher than room temperature
Segment composition.Soft segment is long, frequently with polyether alcoholic compound, ether low-temperature pliability is good, at low temperature ether
Key remains to rotate freely, therefore is highly suitable for low temperature web surface using the polyurethane material of polyether alcohol manufacture and prevents
Water moisture-inhibiting processing.
Very low in some regional winter temperatures, common polyurethane water-proof moisture permeable material is easy embrittlement at low temperature, becomes
Firmly, dress is uncomfortable, and peel resistant strength is also low, and water-wash resistance is also poor, it is therefore necessary to be modified to polyurethane, promote its low temperature
Flexibility makes polyurethane water-proof moisture permeable material at subzero 40 DEG C still there is good flexibility and fabric to have close knot
Conjunction property produces the water-proof air-moisture-permeable coating use for being suitable for use in cold zone garment material.
When using water as decentralized medium, it can be made with non-ignitable, energy saving, at low cost, safe, free from environmental pollution etc. good
Comprehensive performance and the feature of environmental protection outstanding, but the manufacturing process of high molecular weight, finely dispersed stable cationic aqueous polyurethane
Complicated and higher cost.
Summary of the invention
Complicated, cost that the technical problem to be solved by the present invention is to overcome existing waterborne polyurethane resin manufacturing process compared with
Height, and the lower defect of water resistance, cold resistance provide a kind of water-fastness, low temperature resistant waterborne polyurethane resin.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
A kind of water pressure resistance waterborne polyurethane resin, the resin are made of each component of following parts by weight:
50~100 parts of polyalcohol, 20~30 parts of polyisocyanates, amine chain extender 10-25 parts hydrophilic, 5~8 parts of acid, eventually
Only 0.5~5 part of agent, 2~5 parts of stabilizer, 40~70 parts of organic solvent, 0.08~0.1 part of organo-bismuth.
Further, the polyalcohol is grouped as by each group of following parts by weight: 40~60 parts of polyoxypropyleneglycol,
5~20 parts of polyethyleneglycol adipate glycol, 5~20 parts of polytetrahydrofuran ether glycol.
Further, the hydrophilic amine chain extender are as follows: isophorone diamine, diethanol amine, triethanolamine, N- methyl
One of diethanol amine, N- ethyldiethanolamine, N- propyl diethanol amine and N- benzyl diethanol amine are a variety of.
Further, the polyisocyanates includes 5~10 parts of isoflurane chalcone diisocyanate and hexa-methylene -1,6-
The mixture of hexamethylene diisocyanate, 4,4'- dicyclohexyl methyl hydride diisocyanate and diphenylmethane diisocyanate three is total
15~20 parts, and the weight ratio of three is 1:3:2 in three's mixture.
Further, the terminator is one of methanol, butanol, isobutanol and propylene glycol monomethyl ether or a variety of.
Further, the stabilizer is one of UV-327, UV-531, UV-1165 and UV-510 or a variety of.
Further, the organic solvent is toluene, in dimethyl acetamide and dimethylformamide, the weight of three
Than for toluene, dimethyl acetamide and dimethylformamide=1.5:1:2.
Preferably, the acid is phosphoric acid.
The invention also discloses the manufacturing methods of the waterborne polyurethane resin, including following four step:
1), polyalcohol is vacuum-treated to 3~4 hours at 80~100 DEG C；
2), be added polyisocyanates, hydrophilic amine chain extender, organo-bismuth, organic solvent, solid content control 40~
65%, it is reacted 4~8 hours at 50~80 DEG C；
3) acid and terminator, is then added, quickly stirs, in 60~80 DEG C of 1~2h of reaction；
4) organic solvent, is removed under vacuum, deionized water is added under high-speed stirred, and stirring 0.5h obtains aqueous polyurethane tree
Rouge.
The molecular weight of waterborne polyurethane resin of the invention is 40000~80000g/mol, the solid content of resin 40~
60%.It is coated in base fabric by the waterborne polyurethane resin that this method obtains through knife coating, there is high water pressure resistance after drying,
Pass through " GA362-2009 police uniform material waterproofing moisture-inhibiting Compound Fabric " -40 DEG C of low-temperature impact-resistant test.The coating hand of this law manufacture
Sense is soft smooth, and water-fastness, resistance to -40 DEG C of low temperature is very suitable to the Waterproof Breathable breathable fabric for the fabric that severe cold areas uses
Direct coating and transfer coated processing.The water pressure resistance that resulting materials are measured with ISO811.1981 method after coating can be greater than
14000mmH2The numerical value that 0, JIS L1099 method B-1:2006 is measured is up to 9000g/m2/24h。
Beneficial effects of the present invention compared with the prior art: material of the present invention has good weatherability, and moisture-inhibiting is good, water-fast
The good comprehensive performance such as Xie Xing, energy conservation, at low cost, safe, free from environmental pollution and the feature of environmental protection outstanding；According to " coated fabric
The measurement (FZ/T01004-2008) of water permeability resistance " method tested, use the textile hydrostatic pressure intensity of ordinary resin coating
Up to 9000~10000Pa, it is higher than 12000Pa using the textile hydrostatic pressure intensity of this coating.According to " coated fabric resistance to blocking
Measurement (FZ/T 01063-2008) " method tested, the resistance to blocking using the fabric of resin provided by the present invention is good
It is good.According to the moisture permeability test of the fabric coating of Japanese JIS L1099 method B-1:2006, the moisture permeability of resin of the present invention is
19000g/m2.24h。
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
A kind of water pressure resistance waterborne polyurethane resin, is grouped as by each group of following parts by weight: 50 parts of polyalcohol, polyisocyanate cyanogen
20 parts of acid esters, 10 parts of N methyldiethanol amine, 5 parts of phosphoric acid, 0.5 part of methanol, UV-3272 parts, 40 parts of organic solvent, organo-bismuth
0.08 part.
The polyalcohol is grouped as by each group of following parts by weight: 40 parts of polyoxypropyleneglycol, polyethylene glycol oneself two
5 parts of acid esters glycol, 5 parts of polytetrahydrofuran ether glycol.
The isocyanates be 5 parts of isoflurane chalcone diisocyanate and hexa-methylene -1, hexamethylene-diisocyanate, 4,
4'- dicyclohexyl methyl hydride diisocyanate and totally 15 parts of the mixture of diphenylmethane diisocyanate three, and three mixes
The weight ratio of three is 1:3:2 in object.
The organic solvent is toluene, dimethyl acetamide and dimethylformamide, and the weight ratio of three is toluene, two
Methylacetamide: dimethylformamide=1.5:1:2.
The waterborne polyurethane resin is prepared using following methods:
1), polyalcohol is vacuum-treated to 3~4 hours at 80~100 DEG C；
2), be added polyisocyanates, hydrophilic amine chain extender, organo-bismuth, organic solvent, solid content control 40~
65%, it is reacted 4~8 hours at 50~80 DEG C；
3) acid and terminator, is then added, quickly stirs, in 60~80 DEG C of 1~2h of reaction；
4) organic solvent is removed under vacuum, deionized water is added under high-speed stirred, and stirring 0.5h obtains aqueous polyurethane tree
Rouge.
The material solid content of embodiment 1 is 40%, molecular weight 60000g/mol.
Material made from embodiment 1 is coated in accordance with the following methods: first carrying out the blade coating of primer, primer on base fabric
Spread is 18~30 grams/m, and the cloth for applying primer dries 60s in 120 DEG C of baking ovens.It is coated on the cloth of drying primer
Face glue, the amount of face glue are 20~30 grams/m.60s is toasted in 160 DEG C of baking ovens after being painted with face glue.The fracture of material of measuring and monitoring the growth of standing timber is stretched
Long rate, moisture-inhibiting and resistance to pressure.Elongation at break is 1000%, moisture-inhibiting 10500g/m2.24h, water pressure resistance 12000mmH20.It is logical
Cross the low-temperature impact-resistant test of -40 DEG C of " GA362-2009 police uniform material waterproofing moisture-inhibiting Compound Fabric ".
Embodiment 2
A kind of water pressure resistance waterborne polyurethane resin, is grouped as by each group of following parts by weight: 100 parts of polyalcohol, polyisocyanate
25 parts of 30 parts of cyanate, N- ethyldiethanolamine and isophorone diamine, 8 parts of phosphoric acid, 5 parts of butanol, UV-5315 parts, You Jirong
70 parts of agent, 0.1 part of organo-bismuth.
Polyalcohol is grouped as by each group of following parts by weight: 60 parts of polyoxypropyleneglycol, polyethyleneglycol adipate
20 parts of glycol, 20 parts of polytetrahydrofuran ether glycol.
The isocyanates be 7 parts of isoflurane chalcone diisocyanate and hexa-methylene -1, hexamethylene-diisocyanate, 4,
4'- dicyclohexyl methyl hydride diisocyanate and totally 20 parts of the mixture of diphenylmethane diisocyanate three, and three mixes
The weight ratio of three is 1:3:2 in object.
Organic solvent is toluene, dimethyl acetamide and dimethylformamide, and the weight ratio of three is toluene, dimethyl second
Amide and dimethylformamide=1.5:1:2.
The preparation method is the same as that of Example 1, and embodiment 2, solid content 60% is made, and the molecular weight of material is 70000g/mol.
Material made from embodiment 2 is coated according to the method for embodiment 1, the elongation at break for material of measuring and monitoring the growth of standing timber and thoroughly
It is wet, pressure resistance.Elongation at break is 1200%, moisture-inhibiting 12500g/m2.24h, water pressure resistance 14000mmH20.Pass through " GA362-
2009 police uniform material waterproofing moisture-inhibiting Compound Fabrics " -40 DEG C of low-temperature impact-resistant test.
Embodiment 3
A kind of water pressure resistance waterborne polyurethane resin, is grouped as by each group of following parts by weight: 80 parts of polyalcohol, polyisocyanate cyanogen
25 parts of acid esters, isophorone diamine and with 20 parts of N- benzyl diethanol amine, 6 parts of phosphoric acid, 3 parts of propylene glycol monomethyl ether, UV-1165 and
UV-5104 parts, 55 parts of organic solvent, 0.09 part of organo-bismuth.
Polyalcohol alcohol is grouped as by each group of following parts by weight: 55 parts of polyoxypropyleneglycol, polyethylene glycol adipic acid
13 parts of esterdiol, 12 parts of polytetrahydrofuran ether glycol.
The isocyanates be 6 parts of isoflurane chalcone diisocyanate and hexa-methylene -1, hexamethylene-diisocyanate, 4,
4'- dicyclohexyl methyl hydride diisocyanate and totally 18 parts of the mixture of diphenylmethane diisocyanate three, and three mixes
The weight ratio of three is 1:3:2 in object.
Organic solvent is toluene, dimethyl acetamide and dimethylformamide, and the weight ratio of three is toluene, dimethyl second
Amide and dimethylformamide=1.5:1:2.
The preparation method is the same as that of Example 1 for the waterborne polyurethane resin, the embodiment 3 of system, and adjustment solid content is 50%, material
Molecular weight be 80000g/mol.
It is coated elongation at break and the moisture-inhibiting of material of measuring and monitoring the growth of standing timber according to the method for embodiment 1 to material made from embodiment 3,
Pressure resistance.Elongation at break is 1400%, moisture-inhibiting 14500g/m2.24h, water pressure resistance 18000mmH20.Pass through " GA362-2009
Police uniform material waterproofing moisture-inhibiting Compound Fabric " -40 DEG C of low-temperature impact-resistant test.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (3)
1. a kind of manufacturing method of water pressure resistance waterborne polyurethane resin, which is characterized in that including following four step:
1), polyalcohol is vacuum-treated to 3~4 hours at 80~100 DEG C；
2) polyisocyanates, hydrophilic amine chain extender, organo-bismuth, organic solvent, is added, solid content control 65~75%,
50~80 DEG C are reacted 4~8 hours；
3) acid and terminator, is then added, quickly stirs, in 60~80 DEG C of 1~2h of reaction；
4) organic solvent is removed under vacuum, deionized water is added under high-speed stirred, and stirring 0.5h obtains waterborne polyurethane resin；
The parts by weight of each component in the resin are as follows: 50~100 parts of polyalcohol, 20~30 parts of polyisocyanates, hydrophilic amine chain extension
10-25 parts of agent, acid 5~8 parts, 0.5~5 part of terminator, 2~5 parts of stabilizer, 40~70 parts of organic solvent, organo-bismuth 0.08~
0.1 part；
The polyalcohol is grouped as by each group of following parts by weight: 40~60 parts of polyoxypropyleneglycol, polyethylene glycol oneself two
5~20 parts of acid esters glycol, 5~20 parts of polytetrahydrofuran ether glycol；
The polyisocyanates is 5~10 parts of isoflurane chalcone diisocyanate；Hexa-methylene-hexamethylene diisocyanate, 4,4'-
Dicyclohexyl methyl hydride diisocyanate and totally 15~20 parts of diphenylmethane diisocyanate, and the weight ratio of three is 1:3:2；
The organic solvent is toluene, dimethyl acetamide and dimethylformamide, and the weight ratio of three is toluene, diformazan
Yl acetamide and dimethylformamide=1.5:1:2；
The hydrophilic amine chain extender are as follows: isophorone diamine, diethanol amine, triethanolamine, N methyldiethanol amine, N- second
One of base diethanol amine, N- propyl diethanol amine and N- benzyl diethanol amine are a variety of；
The terminator is one of methanol, butanol, isobutanol and propylene glycol monomethyl ether or a variety of.
2. manufacturing method as described in claim 1, resin characteristics are, the stabilizer is UV-327, UV-531, UV-
One of 1165 and UV-510 are a variety of.
3. manufacturing method as described in claim 1, resin characteristics are, the acid is phosphoric acid.
Priority Applications (1)
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| CN107857858B (en) * | 2017-11-29 | 2021-05-25 | 黄山佳杰新材料科技有限公司 | Hydroterpineol modified polyurethane, preparation method thereof and coating composition containing polyurethane |
| TWI695779B (en) * | 2019-04-25 | 2020-06-11 | 財團法人中華民國紡織業拓展會 | Method of preparing elastomer membrane with high water pressure resistance |
| CN110684172A (en) * | 2019-11-12 | 2020-01-14 | 东莞市米儿塑胶原料有限公司 | Water-pressure-resistant water-based polyurethane resin |
| CN112227083A (en) * | 2020-09-30 | 2021-01-15 | 京准化工技术(上海)有限公司 | Fabric water pressure resistance improver and preparation method thereof |
| CN112979915A (en) * | 2021-03-22 | 2021-06-18 | 漳州佳联化工有限公司 | Ultra-soft low-surface-energy modified polyurethane resin and preparation method thereof |
| CN113152110A (en) * | 2021-05-18 | 2021-07-23 | 广东欧美斯家具有限公司 | Environment-friendly polyurethane synthetic leather for sofa furniture and preparation method thereof |
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