CN105111399A - Water pressure resistant water-based polyurethane resin - Google Patents
Water pressure resistant water-based polyurethane resin Download PDFInfo
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- CN105111399A CN105111399A CN201510602882.3A CN201510602882A CN105111399A CN 105111399 A CN105111399 A CN 105111399A CN 201510602882 A CN201510602882 A CN 201510602882A CN 105111399 A CN105111399 A CN 105111399A
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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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- 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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- 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
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- 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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- 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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- 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
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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
- 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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- 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
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- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a water pressure resistant water-based polyurethane resin which is prepared from the following components in parts by weight: 50-100 parts of polyol, 20-30 parts of polyisocyanate, 10-25 parts of a hydrophilic amine chain extender, 5-8 parts of acid, 0.5-5 parts of a terminating agent, 2-5 parts of a stabilizing agent, 40-70 parts of an organic solvent and 0.08-0.1 part of organic bismuth. The material is excellent in weatherability and good in breathability, has excellent overall performance of hydrolytic resistance, energy conservation, low cost, safety, zero environment pollution and the like, and has remarkable environmental protection property; the water pressure resistant strength of fabric using common resin coating can reach 9,000-10,000 Pa, the water pressure resistant strength of fabric using resin coating provided by the invention is higher than 12,000 Pa, the adhesion resistance of the fabric with the resin provided by the invention is good, and the moisture permeability of the resin is 19,000 g/m<2>.24 h.
Description
Technical field
The present invention relates to a kind of urethane resin, be specially a kind of water-fastness, low temperature resistant waterborne polyurethane resin.
Background technology
Urethane is a kind of novel synthetic materials, due to the molecular structure that it is special, has had the snappiness of rubber and the high strength of plastics concurrently, thus no matter is obtained in range of application or usage quantity and develops fast nearly decades.It is soft, natural, soft that Synthetic Leather has gloss, the outward appearance that kishke feel is strong, have with base material adhesive property excellent, resistance to wear, flex endurant, the excellent performance such as anti-aging, resistance to fungi is good, also possess simultaneously winter hardiness good, ventilative, can wash, the excellent advantage such as honest and clean of easy to process, price, be the ideal substitute of natural leather, be widely used in the industries such as clothes, shoemaking, case and bag, furniture, physical culture
Urethane resin main chain is made up of lower than the soft segment of room temperature and the second-order transition temperature segment higher than room temperature second-order transition temperature.Soft segment is long, normal employing polyether alkylol cpd, ether low-temperature pliability is good, and ehter bond still can rotate freely at low temperatures, therefore adopts the polyurethane material of polyether alcohol manufacture to be suitable for very much the process of low temperature web surface Waterproof Breathable.
Very low at some regional winter temperatures, the easy at low temperatures embrittlement of common polyurethane water-proof moisture-inhibiting material, hardening, wear uncomfortable, peel resistant strength is also low, water-wash resistance is also poor, therefore must carry out modification to urethane, promote its low temperature flexibility, make polyurethane water-proof moisture-inhibiting material still have good flexibility subzero 40 DEG C time, there is associativity closely with fabric, produce the water-proof air-moisture-permeable coating being suitable for use in cold zone garment material and use.
When taking water as dispersion medium, can obtain have do not fire, energy-conservation, cost is low, good over-all properties and the outstanding feature of environmental protection such as safe, free from environmental pollution, but the manufacturing process of high molecular, finely dispersed stable cationic aqueous polyurethane is complicated and cost is higher.
Summary of the invention
The technical problem to be solved in the present invention overcomes that existing waterborne polyurethane resin manufacturing process is complicated, cost is higher, and the defect that water tolerance, winter hardiness are lower, a kind of water-fastness, low temperature resistant waterborne polyurethane resin is provided.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
A kind of water pressure resistance waterborne polyurethane resin, this resin is made up of each component of following parts by weight:
Polyvalent alcohol 50 ~ 100 parts, polyisocyanates 20 ~ 30 parts, hydrophilic amine chain extender 10-25 part, acid 5 ~ 8 parts, terminator 0.5 ~ 5 part, stablizer 2 ~ 5 parts, organic solvent 40 ~ 70 parts, organo-bismuth 0.08 ~ 0.1 part.
Further, described polyvalent alcohol is made up of each component of following parts by weight: polyoxypropyleneglycol 40 ~ 60 parts, polyethyleneglycol adipate glycol 5 ~ 20 parts, PTMG 5 ~ 20 parts.
Further, described hydrophilic amine chain extender is: isophorone diamine, diethanolamine, one or more in trolamine, N methyldiethanol amine, N-ethyldiethanolamine, N-propyl group diethanolamine and N-benzyl diethanolamine.
Further, described polyisocyanates comprises isoflurane chalcone diisocyanate 5 ~ 10 parts and hexa-methylene-1, hexamethylene-diisocyanate, 4, totally 15 ~ 20 parts, the mixture of 4'-dicyclohexyl methane diisocyanate and diphenylmethane diisocyanate three, and in three's mixture, the weight ratio of three is 1:3:2.
Further, described terminator is one or more in methyl alcohol, butanols, isopropylcarbinol and propylene glycol monomethyl ether.
Further, described stablizer is one or more in UV-327, UV-531, UV-1165 and UV-510.
Further, described organic solvent is in toluene, N,N-DIMETHYLACETAMIDE and dimethyl formamide, and the weight ratio of three is toluene, N,N-DIMETHYLACETAMIDE and dimethyl formamide=1.5:1:2.
Preferably, described acid is phosphoric acid.
The invention also discloses the manufacture method of this waterborne polyurethane resin, comprise following four steps:
1), by polyvalent alcohol vacuum-treat 3 ~ 4 hours at 80 ~ 100 DEG C;
2), add polyisocyanates, hydrophilic amine chain extender, organo-bismuth, organic solvent, solid content controlled 40 ~ 65%, 50 ~ 80 DEG C of reactions 4 ~ 8 hours;
3) acid and terminator, is then added, rapid stirring, at 60 ~ 80 DEG C of reaction 1 ~ 2h;
4), remove organic solvent under vacuum, under high-speed stirring, add deionized water, stir 0.5h and obtain waterborne polyurethane resin.
The molecular weight of waterborne polyurethane resin of the present invention is 40000 ~ 80000g/mol, and the solid content of resin is 40 ~ 60%.The waterborne polyurethane resin obtained by present method is coated in Ji Bushang through spread coating, has high water pressure resistance after drying, is tested by the low-temperature impact-resistant of " GA362-2009 police uniform material waterproofing moisture-inhibiting Compound Fabric "-40 DEG C.The coating that this law manufactures is soft smooth, water-fastness, resistance to-40 DEG C of low temperature, is applicable to very much the direct coating of the Waterproof Breathable breathable fabric of the fabric that severe cold areas uses and transfer coated process.The water pressure resistance that after coating, resulting materials ISO811.1981 method records can be greater than 14000mmH
2the numerical value that 0, JISL1099 method B-1:2006 records is up to 9000g/m
2/ 24h.
Beneficial effect of the present invention compared with the prior art: material of the present invention has good weathering resistance, moisture-inhibiting is good, and hydrolytic resistance, energy-conservation, cost is low, good over-all properties and the outstanding feature of environmental protection such as safe, free from environmental pollution; Test according to " mensuration (FZ/T01004-2008) of coated fabric water permeability resistance " method, use the textile hydrostatic pressure intensity of ordinary resin coating to reach 9000 ~ 10000Pa, use the textile hydrostatic pressure intensity of this coating higher than 12000Pa.Test according to " mensuration (FZ/T01063-2008) of coated fabric resistance to blocking " method, use the resistance to blocking of the fabric of resin provided by the present invention good.Test according to the Water Vapour Permeability of the fabric coating of Japanese JISL1099 method B-1:2006, the Water Vapour Permeability of resin of the present invention is 19000g/m
2.24h.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Embodiment 1
A kind of water pressure resistance waterborne polyurethane resin, is made up of each component of following parts by weight: polyvalent alcohol 50 parts, polyisocyanates 20 parts, N methyldiethanol amine 10 parts, phosphoric acid 5 parts, methyl alcohol 0.5 part, UV-3272 part, organic solvent 40 parts, organo-bismuth 0.08 part.
Described polyvalent alcohol is made up of each component of following parts by weight: polyoxypropyleneglycol 40 parts, polyethyleneglycol adipate glycol 5 parts, PTMG 5 parts.
Described isocyanic ester is isoflurane chalcone diisocyanate 5 parts, and hexa-methylene-1, totally 15 parts, the mixture of hexamethylene-diisocyanate, 4,4'-dicyclohexyl methane diisocyanates and diphenylmethane diisocyanate three, and in three's mixture, the weight ratio of three is 1:3:2.
Described organic solvent is toluene, N,N-DIMETHYLACETAMIDE and dimethyl formamide, and the weight ratio of three is toluene, N,N-DIMETHYLACETAMIDE: dimethyl formamide=1.5:1:2.
This waterborne polyurethane resin adopts following methods preparation:
1), by polyvalent alcohol vacuum-treat 3 ~ 4 hours at 80 ~ 100 DEG C;
2), add polyisocyanates, hydrophilic amine chain extender, organo-bismuth, organic solvent, solid content controlled 40 ~ 65%, 50 ~ 80 DEG C of reactions 4 ~ 8 hours;
3) acid and terminator, is then added, rapid stirring, at 60 ~ 80 DEG C of reaction 1 ~ 2h;
4) remove organic solvent under vacuum, under high-speed stirring, add deionized water, stir 0.5h and obtain waterborne polyurethane resin.
The material solid content of embodiment 1 is 40%, and molecular weight is 60000g/mol.
The material obtained to embodiment 1 is coated with in accordance with the following methods: the blade coating first carrying out primer on base fabric, and primer spread is 18 ~ 30 grams/m, and the cloth being coated with primer dries 60s in 120 DEG C of baking ovens.Glue above the cloth of drying primer is coated with, the amount of face glue is 20 ~ 30 grams/m.In 160 DEG C of baking ovens, 60s is toasted after being painted with face glue.To measure and monitor the growth of standing timber the elongation at break of material, moisture-inhibiting and resistance to pressure.Elongation at break is 1000%, and moisture-inhibiting is 10500g/m
2.24h, water pressure resistance is 12000mmH
20.Tested by the low-temperature impact-resistant of " GA362-2009 police uniform material waterproofing moisture-inhibiting Compound Fabric "-40 DEG C.
Embodiment 2
A kind of water pressure resistance waterborne polyurethane resin, be made up of each component of following parts by weight: polyvalent alcohol 100 parts, polyisocyanates 30 parts, N-ethyldiethanolamine and isophorone diamine 25 parts, phosphoric acid 8 parts, 5 parts, butanols, UV-5315 part, organic solvent 70 parts, organo-bismuth 0.1 part.
Polyvalent alcohol is made up of each component of following parts by weight: polyoxypropyleneglycol 60 parts, polyethyleneglycol adipate glycol 20 parts, PTMG 20 parts.
Described isocyanic ester is isoflurane chalcone diisocyanate 7 parts, and hexa-methylene-1, totally 20 parts, the mixture of hexamethylene-diisocyanate, 4,4'-dicyclohexyl methane diisocyanates and diphenylmethane diisocyanate three, and in three's mixture, the weight ratio of three is 1:3:2.
Organic solvent is toluene, N,N-DIMETHYLACETAMIDE and dimethyl formamide, and the weight ratio of three is toluene, N,N-DIMETHYLACETAMIDE and dimethyl formamide=1.5:1:2.
Preparation method is with embodiment 1, and obtained embodiment 2, solid content is 60%, and the molecular weight of material is 70000g/mol.
The material obtained to embodiment 2 is coated with according to the method for embodiment 1, and the elongation at break of material of measuring and monitoring the growth of standing timber and moisture-inhibiting are withstand voltage.Elongation at break is 1200%, and moisture-inhibiting is 12500g/m
2.24h, water pressure resistance is 14000mmH
20.Tested by the low-temperature impact-resistant of " GA362-2009 police uniform material waterproofing moisture-inhibiting Compound Fabric "-40 DEG C.
Embodiment 3
A kind of water pressure resistance waterborne polyurethane resin, be made up of each component of following parts by weight: polyvalent alcohol 80 parts, polyisocyanates 25 parts, isophorone diamine and and N-benzyl diethanolamine 20 parts, phosphoric acid 6 parts, propylene glycol monomethyl ether 3 parts, UV-1165 and UV-5104 part, organic solvent 55 parts, organo-bismuth 0.09 part.
Polyvalent alcohol alcohol is made up of each component of following parts by weight: polyoxypropyleneglycol 55 parts, polyethyleneglycol adipate glycol 13 parts, PTMG 12 parts.
Described isocyanic ester is isoflurane chalcone diisocyanate 6 parts, and hexa-methylene-1, totally 18 parts, the mixture of hexamethylene-diisocyanate, 4,4'-dicyclohexyl methane diisocyanates and diphenylmethane diisocyanate three, and in three's mixture, the weight ratio of three is 1:3:2.
Organic solvent is toluene, N,N-DIMETHYLACETAMIDE and dimethyl formamide, and the weight ratio of three is toluene, N,N-DIMETHYLACETAMIDE and dimethyl formamide=1.5:1:2.
The preparation method of this waterborne polyurethane resin is with embodiment 1, and the embodiment 3 of system, adjustment solid content is 50%, and the molecular weight of material is 80000g/mol.
The material obtained to embodiment 3 is coated with the elongation at break and moisture-inhibiting of measuring and monitoring the growth of standing timber and expecting according to the method for embodiment 1, withstand voltage.Elongation at break is 1400%, and moisture-inhibiting is 14500g/m
2.24h, water pressure resistance is 18000mmH
20.Tested by the low-temperature impact-resistant of " GA362-2009 police uniform material waterproofing moisture-inhibiting Compound Fabric "-40 DEG C.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a water pressure resistance waterborne polyurethane resin, its resin characteristics is, this resin is made up of each component of following parts by weight: polyvalent alcohol 50 ~ 100 parts, polyisocyanates 20 ~ 30 parts, hydrophilic amine chain extender 10-25 part, acid 5 ~ 8 parts, terminator 0.5 ~ 5 part, stablizer 2 ~ 5 parts, organic solvent 40 ~ 70 parts, organo-bismuth 0.08 ~ 0.1 part.
2. a kind of water pressure resistance waterborne polyurethane resin as claimed in claim 1, its resin characteristics is, described polyvalent alcohol is made up of each component of following parts by weight: polyoxypropyleneglycol 40 ~ 60 parts, polyethyleneglycol adipate glycol 5 ~ 20 parts, PTMG 5 ~ 20 parts.
3. a kind of water pressure resistance waterborne polyurethane resin as claimed in claim 1, its resin characteristics is, described hydrophilic amine chain extender is: isophorone diamine, diethanolamine, one or more in trolamine, N methyldiethanol amine, N-ethyldiethanolamine, N-propyl group diethanolamine and N-benzyl diethanolamine.
4. a kind of water pressure resistance waterborne polyurethane resin as claimed in claim 1, its resin characteristics is, described polyisocyanates is isoflurane chalcone diisocyanate 5 ~ 10 parts; Hexa-methylene-hexamethylene diisocyanate, 4,4'-dicyclohexyl methane diisocyanates and diphenylmethane diisocyanate totally 15 ~ 20 parts, and the weight ratio of three is 1:3:2.
5. a kind of water pressure resistance waterborne polyurethane resin as claimed in claim 1, its resin characteristics is, described terminator is one or more in methyl alcohol, butanols, isopropylcarbinol and propylene glycol monomethyl ether.
6. a kind of water pressure resistance waterborne polyurethane resin as claimed in claim 1, its resin characteristics is, described stablizer is one or more in UV-327, UV-531, UV-1165 and UV-510.
7. a kind of water pressure resistance waterborne polyurethane resin as claimed in claim 1, its resin characteristics is, described organic solvent is in toluene, N,N-DIMETHYLACETAMIDE and dimethyl formamide, and the weight ratio of three is toluene, N,N-DIMETHYLACETAMIDE and dimethyl formamide=1.5:1:2.
8. a kind of water pressure resistance waterborne polyurethane resin as claimed in claim 1, its resin characteristics is, described acid is phosphoric acid.
9. a manufacture method for a kind of water pressure resistance waterborne polyurethane resin according to claim 1, is characterized in that, comprises following four steps:
1), by the vacuum-treat 3 ~ 4 hours at 80 ~ 100 DEG C of polyvalent alcohol and polyether glycol;
2), add polyisocyanates, hydrophilic amine chain extender, organo-bismuth, organic solvent, solid content controlled 65 ~ 75%, 50 ~ 80 DEG C of reactions 4 ~ 8 hours;
3) acid and terminator, is then added, rapid stirring, at 60 ~ 80 DEG C of reaction 1 ~ 2h;
4) remove organic solvent under vacuum, under high-speed stirring, add deionized water, stir 0.5h and obtain waterborne polyurethane resin.
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Cited By (6)
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CN107857858A (en) * | 2017-11-29 | 2018-03-30 | 朱树彪 | Terpini hydras modified polyurethane, its preparation method and the coating composition containing the polyurethane |
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 |
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 |
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 |
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Cited By (7)
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CN107857858A (en) * | 2017-11-29 | 2018-03-30 | 朱树彪 | Terpini hydras modified polyurethane, its preparation method and the coating composition containing the polyurethane |
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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