CN105348475A - High-frequency laminating yellowing-free polyurethane fabric resin for white clothing leather and preparation method thereof - Google Patents
High-frequency laminating yellowing-free polyurethane fabric resin for white clothing leather and preparation method thereof Download PDFInfo
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- CN105348475A CN105348475A CN201510666564.3A CN201510666564A CN105348475A CN 105348475 A CN105348475 A CN 105348475A CN 201510666564 A CN201510666564 A CN 201510666564A CN 105348475 A CN105348475 A CN 105348475A
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
- C08G18/722—Combination of two or more aliphatic and/or cycloaliphatic polyisocyanates
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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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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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
- C08G18/4009—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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- 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
- C08G18/4202—Two or more polyesters of different physical or chemical nature
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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
- C08G18/4808—Mixtures of two or more polyetherdiols
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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
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- 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
- C08G18/6651—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 C08G18/3225 or polyamines of C08G18/38
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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
- C08G18/65—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
- C08G18/6685—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 C08G18/3225 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
- C08G18/70—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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- 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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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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- 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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- Chemical Kinetics & Catalysis (AREA)
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- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention relates to a high-frequency laminating yellowing-free polyurethane fabric resin for white clothing leather and a preparation method thereof. The high-frequency laminating yellowing-free polyurethane fabric resin is characterized by comprising, by weight, 16 to 25% of polyol, 1 to 3% of an alcohol chain extender, 0.6 to 1.3% of an amine chain extender, 7 to 12% of diisocyanate, 0.05 to 0.1% of a catalyst, 63 to 72% of a solvent and 0.01 to 0.2% of an anti-oxidant. The polyurethane fabric resin has the advantages of capacity of resisting water pressure produced by a water column with a height of 10000 mm, laminating strength of no less than 40 N/25 mm after high frequency treatment, moisture permeability of no less than 1.5 mg/cm2*h, yellowing resistance of no less than grade 4.5, capability of meeting requirements of high-frequency seamless laminating strength, no spark phenomenon, production safety, reduction in manual stitching links and labor cost and improved production efficiency. Prepared white clothing leather is free of sutures and seam edges and thus appears to be more smooth and beautiful.
Description
Technical field
The present invention relates to a kind of non yellowing urethane resin, particularly relate to a kind of white garments leather high frequency laminating non yellowing urethane resin and preparation method thereof.
Background technology
White garments leather requires that high water pressure resistance, Waterproof Breathable and non yellowing performance reach more than 4.5 grades.At present, be applied to the white garments leather of high frequency laminating owing to there being above requirement, the crystallinity being generally increase resin, to improve water pressure resistance performance, adds silicon-dioxide to improve water vapour permeability, adds fluorine element auxiliary agent to improve water resistance.Adding these auxiliary agents makes the resistance toheat of resin increase, but needs to improve high frequency laminating frequency, to reach the laminating intensity of product requirement; And raising laminating frequency there will be spark phenomenon, cause work safety accident, and damage goods; For sending out the generation avoiding these problems, can only increase laminating time, pressure and temperature, but causing production efficiency to decline, energy consumption increases, cost increase.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and a kind of white garments leather high frequency laminating non yellowing polyurethane fabric resin and preparation method thereof is provided, not needing to increase laminating time, pressure and temperature just can make its water pressure resistance performance reach 10000mm water column, fit after high frequency intensity >=40N/25mm, Water Vapour Permeability >=1.5mg/cm2*h, anti-yellowing property >=4.5 grade, there will not be spark phenomenon, production safety.
In order to achieve the above object, technical scheme of the present invention is: it is a kind of white garments leather high frequency laminating non yellowing polyurethane fabric resin, it is characterized in that comprising the oxidation inhibitor of the polyvalent alcohol of 16-25%, the alcohols chainextender of 1-3%, the amine chain extender of 0.6-1.3%, the vulcabond of 7-12%, the catalyzer of 0.05-0.1%, the solvent of 63-72% and 0.01-0.2%, they are weight hundred parts ratio.
The polycaprolactone glycol that described polyvalent alcohol is the polyester adipate glycol of number-average molecular weight 1000-3000, the PTMG of number-average molecular weight 2000-3000, number-average molecular weight are 2000-3000, number-average molecular weight are at least two kinds in the polyoxyethylene glycol of 1000-2000, wherein polyester adipate glycol accounts for 55-85%, and PTMG polyvalent alcohol or polycaprolactone glycol or PTMG account for 15-45%.
Described alcohols chainextender comprises the straight chain alcohols chain extension of 50-75% and the band side chain alcohols chainextender of 25-50%; Described straight chain alcohols chainextender is the one in ethylene glycol, BDO, 1,6-hexylene glycol; Described band side chain alcohols chainextender is one or both in neopentyl glycol, methyl propanediol and 1,2-PD; In the mixture of band side chain alcohols chainextender, neopentyl glycol accounts for 0-45%, and methyl propanediol or methyl propanediol account for 55-100%, or 1,2-PD or neopentyl glycol account for 0-45%, and 1,2-PD accounts for 55-100%.
Described amine chain extender is one or both mixture in isophorone diamine, diamino-dicyclohexyl methane; Isophorone diamine accounts for 75-100% in the mixture, and diamino-dicyclohexyl methane accounts for 0-25%.
Described vulcabond comprises the dicyclohexyl methane diisocyanate of 80-90% and the isophorone diisocyanate of 10-20%, or described vulcabond comprises the dicyclohexyl methane diisocyanate of 80-90% and the hexamethylene diisocyanate of 10-20%, or described vulcabond comprises the hexamethylene diisocyanate of the dicyclohexyl methane diisocyanate of 80-90%, the isophorone diisocyanate of 0-6% and 8-15%.
Described catalyzer is organo-bismuth class catalyzer.
It is multiple that described solvent comprises in dimethyl formamide, toluene, butanone, ethyl acetate, ethanol and Virahol; Account for 60-77% at mixture dimethyl formamide, toluene accounts for 8-25%, butanone accounts for 0-11%, ethyl acetate accounts for 0-9%, ethanol accounts for 0-8%, Virahol accounts for 0-7%.
Described oxidation inhibitor is antioxidant 1010 or antioxidant 1076.
The preparation method of white garments leather high frequency laminating non yellowing polyurethane fabric resin of the present invention, comprises the following steps:
Step one
The oxidation inhibitor of the vulcabond of the alcohols chainextender of the polyvalent alcohol of 16-25%, 1-3%, 7-12%, the catalyzer of 0.05-0.1%, the solvent of 5-13% and 0.01-0.2% is put in reactor, mix at 40-50 DEG C, be warming up to 90-95 DEG C of insulation reaction 4-6 hour gradually, then be cooled to less than 35 DEG C, obtain base polyurethane prepolymer for use as;
Step 2
Add remaining solvent in a kettle., stir, temperature controls at 30-35 DEG C, slowly add again the amine chain extender of 0.6-1.3% in a kettle., reaction 2-3 hour, controls viscosity at 80,000-11 ten thousand mpas/25 DEG C, obtains white garments leather high frequency laminating non yellowing polyurethane fabric resin.
The present invention's advantage is compared with prior art: its water pressure resistance performance reaches 10000mm water column, and fit after high frequency intensity >=40N/25mm, Water Vapour Permeability >=1.5mg/cm2*h, anti-yellowing property >=4.5 grade, the seamless applying requirement of strength of high frequency can be met, there will not be spark phenomenon, production safety; Decrease manual suture's link, reduce cost of labor, improve production efficiency; Goods do not have suture and tape edge, seem more smooth attractive in appearance yet.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is described further.It should be noted that at this, the explanation for these embodiments understands the present invention for helping, but does not form limitation of the invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can be combined with each other.
Embodiment one
Table 1 is the formula of white garments leather high frequency laminating non yellowing polyurethane fabric resin.
Table 1
| Title material | Weight (gram) | Per-cent (%) |
| Polyester adipate glycol (number-average molecular weight 2000) | 150 | 17.68 |
| Polyoxyethylene glycol (number-average molecular weight 2000) | 60 | 7.07 |
| Ethylene glycol | 6.2 | 0.73 |
| Neopentyl glycol | 3.2 | 0.38 |
| Isophorone diamine | 10.2 | 1.20 |
| Isophorone diisocyanate | 7.9 | 0.93 |
| Dicyclohexyl methane diisocyanate | 70 | 8.25 |
| Organo-bismuth class catalyzer | 0.5 | 0.06 |
| Antioxidant 1010 | 0.2 | 0.02 |
| Dimethyl formamide | 410 | 48.34 |
| Toluene | 50 | 5.89 |
| Ethyl acetate | 40 | 4.72 |
| Ethanol | 40 | 4.72 |
| Gross weight | 848.2 | 100.00 |
The preparation process of the white garments leather high frequency laminating non yellowing polyurethane fabric resin of the present embodiment is as follows:
Step one
30g dimethyl formamide, 120g polyester adipate glycol, 90g polyoxyethylene glycol, 7g ethylene glycol, 2.4g neopentyl glycol, 7.9g isophorone diisocyanate, 70g dicyclohexyl methane diisocyanate, 0.5g catalyzer and 0.2g antioxidant 1010 are put in reactor, mixes at 40 DEG C; Be warming up to 90 DEG C of insulation reaction 6 hours gradually, be then cooled to less than 35 DEG C;
Step 2
Add 380g dimethyl formamide, 50g toluene, 40g ethyl acetate and 40g ethanol in a kettle. to stir, temperature controls at 30 DEG C; Slowly add again 10.2g isophorone diamine in a kettle. and react 3 hours, control viscosity at 80,000 mpas/25 DEG C, obtain white garments leather high frequency laminating non yellowing polyurethane fabric resin.
Embodiment two
Table 2 is also the formula of white garments leather high frequency laminating non yellowing polyurethane fabric resin.
Table 2
| Title material | Weight (gram) | Per-cent (%) |
| Polyester adipate glycol (number-average molecular weight 1000) | 135 | 13.12 |
| Polycaprolactone glycol (number-average molecular weight 2000) | 30 | 2.92 |
| BDO | 18 | 1.75 |
| Neopentyl glycol | 12 | 1.17 |
| Isophorone diamine | 10.2 | 0.99 |
| Hexamethylene diisocyanate | 30 | 2.92 |
| Dicyclohexyl methane diisocyanate | 60 | 5.83 |
| Organo-bismuth class catalyzer | 0.6 | 0.06 |
| Antioxidant 1010 | 0.15 | 0.01 |
| Dimethyl formamide | 440 | 42.77 |
| Toluene | 183 | 17.79 |
| Butanone | 73.2 | 7.12 |
| Virahol | 36.6 | 3.56 |
| Gross weight | 1028.75 | 100.00 |
The preparation process of the white garments leather high frequency laminating non yellowing polyurethane fabric resin of the present embodiment is as follows:
Step one
95g dimethyl formamide, 140g polyester adipate glycol, 25g polycaprolactone glycol, 15g butyleneglycol, 15g neopentyl glycol, 18g hexamethylene diisocyanate, 72g dicyclohexyl methane diisocyanate, 0.9g catalyzer and 2g antioxidant 1010 are put in reactor, mixes at 50 DEG C; Be warming up to 95 DEG C of insulation reaction 4 hours gradually, be then cooled to less than 35 DEG C;
Step 2
Add 345g dimethyl formamide, 183g toluene, 73.2g butanone and 36.6g Virahol in a kettle. to stir, temperature controls at 35 DEG C; Slowly add again 10.2g isophorone diamine in a kettle. and react 2 hours, control viscosity at 110,000 mpas/25 DEG C, obtain white garments leather high frequency laminating non yellowing polyurethane fabric resin.
embodiment three
Table 3 is also the formula of white garments leather high frequency laminating non yellowing polyurethane fabric resin.
Table 3
| Title material | Weight (gram) | Per-cent (%) |
| Polyester adipate glycol (number-average molecular weight 3000) | 130 | 12.21 |
| Polycaprolactone glycol (number-average molecular weight 3000) | 35.5 | 3.33 |
| PTMG (number-average molecular weight 2000) | 35.5 | 3.33 |
| Butyleneglycol | 4.5 | 0.42 |
| Methyl propanediol | 2.9 | 0.27 |
| Diamino-dicyclohexyl methane | 13.7 | 1.29 |
| Isophorone diisocyanate | 19.1 | 1.79 |
| Dicyclohexyl methane diisocyanate | 108.6 | 10.20 |
| Organo-bismuth class catalyzer | 0.6 | 0.06 |
| Antioxidant 1076 | 0.55 | 0.05 |
| Dimethyl formamide | 492 | 46.20 |
| Toluene | 115 | 10.80 |
| Butanone | 57 | 5.35 |
| Virahol | 50 | 4.70 |
| Gross weight | 1064.95 | 100 |
The preparation process of the white garments leather high frequency laminating non yellowing polyurethane fabric resin of the present embodiment is as follows:
Step one
72g dimethyl formamide, 130g polyester adipate glycol, 35.5g polycaprolactone glycol, 35.5g PTMG, 4.5g butyleneglycol, 2.9g methyl propanediol, 19.1g isophorone diisocyanate, 108.6g dicyclohexyl methane diisocyanate, 0.6g catalyzer and 0.55g antioxidant 1076 are put in reactor, mixes at 45 DEG C; Be warming up to 93 DEG C gradually, insulation reaction 5 hours, is then cooled to less than 35 DEG C;
Step 2
Add 420g dimethyl formamide, 115g toluene, 57g butanone and 50g Virahol in a kettle., stir, temperature controls at 33 DEG C; Slowly add again 13.7g diamino-dicyclohexyl methane in a kettle. and react 2.5 hours, control viscosity at 9.5 ten thousand mpas/25 DEG C, obtain white garments leather high frequency laminating non yellowing polyurethane fabric resin.
embodiment four
Table 4 is also the formula of white garments leather high frequency laminating non yellowing polyurethane fabric resin.
Table 4
| Title material | Weight (gram) | Per-cent (%) |
| Polyester adipate glycol (number-average molecular weight 2000) | 216 | 15.38 |
| PTMG (number-average molecular weight 3000) | 54 | 3.85 |
| Polyoxyethylene glycol (number-average molecular weight 1000) | 30 | 2.14 |
| Butyleneglycol | 9.8 | 0.70 |
| 1,2-PD | 3.8 | 0.27 |
| Methyl propanediol | 1.5 | 0.11 |
| Isophorone diamine | 4.8 | 0.34 |
| Diamino-dicyclohexyl methane | 4.8 | 0.34 |
| Isophorone diisocyanate | 5.1 | 0.36 |
| Dicyclohexyl methane diisocyanate | 87.1 | 6.20 |
| Hexamethylene diisocyanate | 10.3 | 0.73 |
| Organo-bismuth class catalyzer | 1 | 0.07 |
| Antioxidant 1076 | 2.2 | 0.16 |
| Dimethyl formamide | 613 | 43.65 |
| Toluene | 194.6 | 13.86 |
| Butanone | 136.2 | 9.70 |
| Virahol | 30 | 2.14 |
| Gross weight | 1404.2 | 100 |
The preparation process of the white garments leather high frequency laminating non yellowing polyurethane fabric resin of the present embodiment is as follows:
Step one
By 97g dimethyl formamide, 216g polyester adipate glycol, 54g PTMG, 30g polyoxyethylene glycol, 9.8g butyleneglycol, 3.8g1,2-propylene glycol, 1.5g methyl propanediol, 5.1g isophorone diisocyanate, 87.1g dicyclohexyl methane diisocyanate, 10.3g hexamethylene diisocyanate, 1g catalyzer and 2.2g antioxidant 1076 are put in reactor, mix at 47 DEG C; Be warming up to 92 DEG C of insulation reaction 5.5 hours gradually, be then cooled to less than 35 DEG C;
Step 2
Add 516g dimethyl formamide, 194.6g toluene, 136.2g butanone and 30g Virahol in a kettle., stir, temperature controls at 32 DEG C; Slowly add 4.8g isophorone diamine and 4.8g diamino-dicyclohexyl methane in a kettle. again, react 2.4 hours, control viscosity at 90,000 mpas/25 DEG C, obtain white garments leather high frequency laminating non yellowing polyurethane fabric resin.
The applying detection result of above embodiment:
By even in dispersion machine blending dispersion for 100 parts of above-mentioned polyurethane fabric resin, dimethyl formamide 30 parts, toluene 40 parts and 15 parts, white powder, standing and defoaming 2 hours, be distributed in separate-type paper with 0.15mm thickness line roller coat, through oven for drying, be coated with the bed material resin of 0.2mm thickness again, then to fit woven, through overcuring, peel off.Table 5 is physical property detection tables of the common non yellowing polyurethane fabric resin of embodiment one to embodiment four.
As can be seen from Table 5 the white garments leather high frequency laminating non yellowing polyurethane fabric resin prepared of the present invention water pressure resistance, high frequency laminating, Water Vapour Permeability, etc. performance all very good, and after high frequency laminating, laminating is firm, does not occur pasting loosely situation.
Table 5
Below detailed description is made to embodiments of the present invention, but the present invention is not limited to described embodiment in conjunction with the embodiments.For the ordinary skill in the art, carry out multiple change, amendment, replacement and distortion when not departing from principle of the present invention and aim to these embodiments still to fall within protection scope of the present invention.
Claims (9)
1. a white garments leather high frequency laminating non yellowing polyurethane fabric resin, it is characterized in that comprising the oxidation inhibitor of the polyvalent alcohol of 16-25%, the alcohols chainextender of 1-3%, the amine chain extender of 0.6-1.3%, the vulcabond of 7-12%, the catalyzer of 0.05-0.1%, the solvent of 63-72% and 0.01-0.2%, they are weight hundred parts ratio.
2. white garments leather high frequency laminating non yellowing polyurethane fabric resin according to claim 1, it is characterized in that described polyvalent alcohol is the polyester adipate glycol of number-average molecular weight 1000-3000, the PTMG of number-average molecular weight 2000-3000, number-average molecular weight are 2000-3000 polycaprolactone glycol, number-average molecular weight is in the polyoxyethylene glycol of 1000-2000 at least two kinds, wherein polyester adipate glycol accounts for 55-85%, and PTMG polyvalent alcohol or polycaprolactone glycol or PTMG account for 15-45%.
3. white garments leather high frequency laminating non yellowing polyurethane fabric resin according to claim 1, is characterized in that described alcohols chainextender comprises the straight chain alcohols chain extension of 50-75% and the band side chain alcohols chainextender of 25-50%; Described straight chain alcohols chainextender is the one in ethylene glycol, BDO, 1,6-hexylene glycol; Described band side chain alcohols chainextender is one or both in neopentyl glycol, methyl propanediol and 1,2-PD; In the mixture of band side chain alcohols chainextender, neopentyl glycol accounts for 0-45%, and methyl propanediol or methyl propanediol account for 55-100%, or 1,2-PD or neopentyl glycol account for 0-45%, and 1,2-PD accounts for 55-100%.
4. white garments leather high frequency according to claim 1 laminating non yellowing polyurethane fabric resin, is characterized in that described amine chain extender is one or both mixture in isophorone diamine, diamino-dicyclohexyl methane; Isophorone diamine accounts for 75-100% in the mixture, and diamino-dicyclohexyl methane accounts for 0-25%.
5. white garments leather high frequency laminating non yellowing polyurethane fabric resin according to claim 1, it is characterized in that described vulcabond comprises the dicyclohexyl methane diisocyanate of 80-90% and the isophorone diisocyanate of 10-20%, or described vulcabond comprises the dicyclohexyl methane diisocyanate of 80-90% and the hexamethylene diisocyanate of 10-20%, or described vulcabond comprises the hexamethylene diisocyanate of the dicyclohexyl methane diisocyanate of 80-90%, the isophorone diisocyanate of 0-6% and 8-15%.
6. white garments leather high frequency laminating non yellowing polyurethane fabric resin according to claim 1, is characterized in that described catalyzer is organo-bismuth class catalyzer.
7. white garments leather high frequency according to claim 1 laminating non yellowing polyurethane fabric resin, is characterized in that described solvent comprises in dimethyl formamide, toluene, butanone, ethyl acetate, ethanol and Virahol multiple; Account for 60-77% at mixture dimethyl formamide, toluene accounts for 8-25%, butanone accounts for 0-11%, ethyl acetate accounts for 0-9%, ethanol accounts for 0-8%, Virahol accounts for 0-7%.
8. white garments leather high frequency laminating non yellowing polyurethane fabric resin according to claim 1, is characterized in that described oxidation inhibitor is antioxidant 1010 or antioxidant 1076.
9. a white garments leather preparation method for high frequency laminating non yellowing polyurethane fabric resin, comprises the following steps:
Step one
The oxidation inhibitor of the vulcabond of the alcohols chainextender of the polyvalent alcohol of 16-25%, 1-3%, 7-12%, the catalyzer of 0.05-0.1%, the solvent of 5-13% and 0.01-0.2% is put in reactor, mix at 40-50 DEG C, be warming up to 90-95 DEG C of insulation reaction 4-6 hour gradually, then be cooled to less than 35 DEG C, obtain base polyurethane prepolymer for use as;
Step 2
Add remaining solvent in a kettle., stir, temperature controls at 30-35 DEG C, slowly add again the amine chain extender of 0.6-1.3% in a kettle., reaction 2-3 hour, controls viscosity at 80,000-11 ten thousand mpas/25 DEG C, obtains white garments leather high frequency laminating non yellowing polyurethane fabric resin.
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| CN106866927A (en) * | 2017-02-24 | 2017-06-20 | 耿佃勇 | Enhanced water resistance clear prepolymer and preparation method thereof |
| CN110746573A (en) * | 2019-11-15 | 2020-02-04 | 江苏华大新材料有限公司 | Yellowing-resistant two-liquid type polyurethane adhesive for reflective material and preparation method thereof |
| CN110885425A (en) * | 2019-12-13 | 2020-03-17 | 广东大盈新材料科技有限公司 | Anti-yellowing polyurethane resin for wet process and preparation method thereof |
| CN115197391A (en) * | 2022-08-15 | 2022-10-18 | 河北邦泰氨纶科技有限公司 | Fiber-grade polyurethane slice and preparation method and application thereof |
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| CN104650577A (en) * | 2015-02-05 | 2015-05-27 | 广东大盈化工有限公司 | High-frequency-attached high-water-pressure-resistance polyurethane resin for leather and method for producing high-frequency-attached high-water-pressure-resistance polyurethane resin for leather |
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| CN104513355A (en) * | 2013-09-26 | 2015-04-15 | 苏州富仁化工有限公司 | Preparation method for cold resistant and moisture permeable polyurethane resin |
| CN104650577A (en) * | 2015-02-05 | 2015-05-27 | 广东大盈化工有限公司 | High-frequency-attached high-water-pressure-resistance polyurethane resin for leather and method for producing high-frequency-attached high-water-pressure-resistance polyurethane resin for leather |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106866927A (en) * | 2017-02-24 | 2017-06-20 | 耿佃勇 | Enhanced water resistance clear prepolymer and preparation method thereof |
| CN110746573A (en) * | 2019-11-15 | 2020-02-04 | 江苏华大新材料有限公司 | Yellowing-resistant two-liquid type polyurethane adhesive for reflective material and preparation method thereof |
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| CN110885425B (en) * | 2019-12-13 | 2021-11-23 | 广东大盈新材料科技有限公司 | Anti-yellowing polyurethane resin for wet process and preparation method thereof |
| CN115197391A (en) * | 2022-08-15 | 2022-10-18 | 河北邦泰氨纶科技有限公司 | Fiber-grade polyurethane slice and preparation method and application thereof |
| CN115197391B (en) * | 2022-08-15 | 2023-10-31 | 河北邦泰氨纶科技有限公司 | Fiber-grade polyurethane slice and preparation method and application thereof |
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