CN102558486B - Dry-process polyurethane synthetic leather resin material for hot attaching, preparation method and uses - Google Patents
Dry-process polyurethane synthetic leather resin material for hot attaching, preparation method and uses Download PDFInfo
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- CN102558486B CN102558486B CN 201110439855 CN201110439855A CN102558486B CN 102558486 B CN102558486 B CN 102558486B CN 201110439855 CN201110439855 CN 201110439855 CN 201110439855 A CN201110439855 A CN 201110439855A CN 102558486 B CN102558486 B CN 102558486B
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Abstract
The invention relates to dry-process polyurethane synthetic leather resin material for hot attaching, a preparation method and the uses. The polyurethane resin comprises 50 to 70 parts of components A and 30 to 50 parts of components B by weight, wherein the components A comprise 100 to 150 parts of diisocyanate, 150 to 200 parts of polyester diol, 20 to 50 parts of chain extenders and 600 to 930 parts of solvents by weight; and the components B comprise 50 to 100 parts of diisocyanate, 200 to 300 parts of polyester diol, 20 to 50 parts of chain extenders and 400 to 650 parts of solvents. The dry-process polyurethane synthetic leather resin material for hot attaching, which is formed by mixing the components A and the components B, can satisfy the requirements of hot attaching and the requirements of dry-process synthetic leather.
Description
Technical field
The present invention relates to a kind of thermal-adhering dry-process polyurethane synthetic leather resin material, Preparation method and use.
Technical background
Many advantages such as that Synthetic Leather has is wear-resisting, cold-resistant, ageing-resistant, quality is soft, outward appearance is beautiful are the ideal substitute of natural leather, are widely used in the industries such as clothes, shoemaking, case and bag furniture.Synthetic leather uses tackiness agent bonding in use mostly, and tackiness agent commonly used mostly is solvent-borne type, and solvent evaporates pollutes during use, and solvent also can cause corrosion to synthetic leather simultaneously, affects outward appearance and physical property, causes substandard products; As adopt suturing with thread management, then owing to the existence of line eye pin hole, can't be applied to require the anti-water pref of stopping property.
Though the urethane resin that dry-method chemical leather uses is linear resin, has thermoplasticity, high temperature hot pressing can self-adhesion, but because the restriction of processing conditions, common dry-method chemical leather urethane resin has higher temperature tolerance, and the synthetic leather of therefore common dry-method chemical leather urethane resin being made carries out hot pressing and fits relatively more difficult, excess Temperature, damage easily goods, temperature is crossed to hang down and is then caused applying bad, so thermal-adhering must have suitable softening melt temperature with the dry-process polyurethane synthetic leather resin.
The urethane resin molecular chain has soft section and hard section, and hard section affects softening melt temperature and the high-temperature behavior of resin usually.Hard section of urethane is comprised of reacted polyisocyanates or polyisocyanates and chainextender, contains aryl, carbamate, replacement urea groups isopolarity group.Polyisocyanates and chainextender are very large on hard section composition impact, usually hard section softening temperature of aromatic polyisocyanate reaction generation is higher than aliphatic polyisocyanates, short by molecular chain, without side group, the hard section softening melt temperature that the chainextender that polarity is strong and polyisocyanates reaction generate is high, if instead the chainextender molecular chain length has side group, polarity is low, and the hard section softening melt temperature that then generates is just low.So by regulate the composition of urethane resin with different polyisocyanates, chainextender, polyester polyol, can make the lower urethane resin of softening temperature.
Iff making synthetic leather with the lower urethane resin of softening temperature, though can satisfy the needs of thermal-adhering, but the surface can be clamminess, the performances such as wear-resisting, physical strength also can't satisfy the normal use of synthetic leather.The urethane resin that solution plan can adopt the urethane resin of low softening temperature to sneak into high softening temperature with certain proportion makes the dry method resin, also will consider the compatibility problem of two kinds of resins simultaneously, and the composition of regulating two kinds of resins can improve the two consistency.
In the Synthetic Leather field, fit with the patent literature of dry-process polyurethane synthetic leather resin there are no associated hot at present.
Summary of the invention
The purpose of this invention is to provide a kind of thermal-adhering dry-process polyurethane synthetic leather resin material, this resin both can satisfy the needs of thermal-adhering, can satisfy again dry-method chemical leather to the requirement of performance.
Another object of the present invention provides the preparation method that this thermal-adhering is used the dry-process polyurethane synthetic leather resin material.
A further object of the present invention provides the purposes that this thermal-adhering is used the dry-process polyurethane synthetic leather resin material.
A kind of thermal-adhering dry-process polyurethane synthetic leather resin material of the present invention by weight, comprises A component 50-70 part and B component 30-50 part,
The composition of described each material of A component is: by weight,
Vulcabond 100-150 part,
Polyester diol 150-200 part,
Chainextender 20-50 part,
Solvent 600-930 part;
The composition of described each material of B component is: by weight,
Vulcabond 50-100 part,
Polyester diol 200-300 part,
Chainextender 20-50 part,
Solvent 400-650 part.
In a preferred embodiment of the present invention, the polyester diol in the described A component is aliphatic polyester binary alcohol, aromatic polyester dibasic alcohol or PCDL.
Described aliphatic polyester binary alcohol is the poly-succinic DOPCP dibasic alcohol of 500-2000 for number-average molecular weight, number-average molecular weight is the polyethylene glycol adipate dibasic alcohol of 500-3000, number-average molecular weight is the poly adipate succinic acid ester dibasic alcohol of 1000-3000, number-average molecular weight is the polyneopentyl glycol adipate dibasic alcohol of 1000-3000, number-average molecular weight is the poly-diethylene glycol adipate dibasic alcohol of 1000-3000, number-average molecular weight is the polydiethylene glycol sebacate dibasic alcohol of 1000-3000, the mass ratio that contains Succinic Acid and hexanodioic acid is that 40: 60 and number-average molecular weight are the mixing acid butanediol ester dibasic alcohol of 1000-3000 or the dimeracid butanediol ester dibasic alcohol that number-average molecular weight is 1000-3000.
Aliphatic polyester binary alcohol is preferably the dimeracid butanediol ester dibasic alcohol that poly adipate succinic acid ester dibasic alcohol that number-average molecular weight is 1000-2000, poly-succinic DOPCP dibasic alcohol that number-average molecular weight is 1000-2000 or number-average molecular weight are 1000-2000.
The number-average molecular weight of described poly-diethylene glycol adipate dibasic alcohol is preferably 500-2000.
The lipid acid of preparation aliphatic polyester binary alcohol can be one or several mixture of Succinic Acid, hexanodioic acid, sebacic acid, dimeracid.
The dibasic alcohol of preparation aliphatic polyester binary alcohol can be one or more mixture of ethylene glycol, propylene glycol, 3-methyl propanediol, neopentyl glycol, hexylene glycol, 3-methyl pentanediol.
The aromatic polyester dibasic alcohol is that number-average molecular weight is the ethylene isophthalate dibasic alcohol of 400-1000, number-average molecular weight is the m-phthalic acid glycol ether ester dibasic alcohol of 400-1000, number-average molecular weight is the m-phthalic acid DOPCP dibasic alcohol of 400-1000, number-average molecular weight is the ethylene glycol terephthalate dibasic alcohol of 400-1000, number-average molecular weight is that terephthalic acid glycol ether ester dibasic alcohol or the number-average molecular weight of 400-1000 is 400-1000 terephthalic acid DOPCP dibasic alcohol.Be preferably number-average molecular weight and be a kind of in the m-phthalic acid glycol ether ester dibasic alcohol of 400-750, the terephthalic acid glycol ether ester dibasic alcohol that number-average molecular weight is 400-750 or both mixtures.
The acid of preparation aromatic polyester dibasic alcohol can be one or several mixture of m-phthalic acid, terephthalic acid, phthalic anhydride.
The dibasic alcohol of preparation aromatic polyester dibasic alcohol can be one or more mixture of ethylene glycol, 3-methyl propanediol, neopentyl glycol, hexylene glycol.
In a preferred embodiment of the present invention, the chainextender in the described A component is aliphatic dihydric alcohol, aromatic diamine or aliphatic diamine.
Aliphatic dihydric alcohol is ethylene glycol, methyl propanediol, butyleneglycol, neopentyl glycol, 3-methyl pentanediol, 1, the mixture of one or more in 6-hexylene glycol, the glycol ether.
Aromatic diamine is tolylene diamine, 3,3-two chloro-4,4-diphenylmethanediamiand, 4,4-diaminodiphenyl-methane, 3,5-diethyl toluene diamine, 3,5 dimethythiotoluene diamines, 3, the mixture of one or more in the 3-dichloro benzidine is preferably 3,3-two chloro-4,4-diphenylmethanediamiand, 4,4-diaminodiphenyl-methane, 3, the mixture of one or more in the 5-diethyl toluene diamine.
Aliphatic diamine is isophorone diamine, dicyclohexyl methyl hydride diamines, hexanediamine, quadrol or cyclohexanediamine, is preferably isophorone diamine or dicyclohexyl methyl hydride diamines.
In a preferred embodiment of the present invention, the vulcabond in the described B component is hexamethylene diisocyanate, isophorone diisocyanate, dicyclohexyl methane diisocyanate, tolylene diisocyanate or diphenylmethanediisocyanate.
In a preferred embodiment of the present invention, the polyester diol in the described B component is the adipic acid type polyester diol.
In a more preferred embodiment of the present invention, the number-average molecular weight of adipic acid type polyester diol is 700-10000, is preferably 1000-3000.
The dibasic alcohol of preparation polyester diol can be one or more mixture of ethylene glycol, propylene glycol, 3-methyl propanediol, neopentyl glycol, hexylene glycol, 3-methyl pentanediol.
In a preferred embodiment of the present invention, the chainextender in the described B component is aliphatic dihydric alcohol or aliphatic diamine.
Aliphatic dihydric alcohol is ethylene glycol, methyl propanediol, butyleneglycol, neopentyl glycol, 3-methyl pentanediol, 1, the mixture of one or more in 6-hexylene glycol, the glycol ether.
Aliphatic diamine is isophorone diamine, dicyclohexyl methyl hydride diamines, hexanediamine, quadrol or cyclohexanediamine, is preferably isophorone diamine or dicyclohexyl methyl hydride diamines.
In a preferred embodiment of the present invention, the vulcabond in described A component and the described B component is aliphatic diisocyanate and derivative or aromatic diisocyanate and derivative thereof.
In a preferred embodiment of the present invention, aliphatic diisocyanate is 1, hexamethylene-diisocyanate (HDI), isophorone diisocyanate (IPDI), dicyclohexyl methane diisocyanate (HMDI), 1,4-cyclohexyl diisocyanate, norbornene alkyl diisocyanate, Methylcyclohexyl diisocyanate or cyclohexyl dimethylene diisocyanate, more preferably hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI) or dicyclohexyl methane diisocyanate (HMDI).
In a preferred embodiment of the present invention, the aliphatic diisocyanate derivative is the hexamethylene diisocyanate dimer.
In a preferred embodiment of the present invention, aromatic diisocyanate is tolylene diisocyanate (TDI), diphenylmethanediisocyanate (MDI), dimethyl diphenyl vulcabond, naphthalene diisocyanate or xylylene diisocyanate, is preferably tolylene diisocyanate or diphenylmethanediisocyanate.
In a preferred embodiment of the present invention, the aromatic diisocyanate derivative is liquefaction diphenylmethanediisocyanate (MDI) or toluene diisocyanate dimer, is preferably liquefaction methylenebis phenyl isocyanate (MDI).
In a preferred embodiment of the present invention, A component and described B component, described solvent is one or more mixing of butanone, toluene, DMF, ethyl acetate, N-Methyl pyrrolidone.
Thermal-adhering of the present invention with the preparation method of dry-process polyurethane synthetic leather resin material is:
With vulcabond, polyester diol, chainextender, in nitrogen atmosphere, react temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into simultaneously solvent, treat that solvent adds, record soltion viscosity and rise to 80000-100000mPas (25 ℃), get final product termination reaction, be the A component;
With vulcabond, polyester diol, chainextender, in nitrogen atmosphere, react temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into simultaneously solvent, treat that solvent adds, record soltion viscosity and rise to 80000-100000mPas (25 ℃), get final product termination reaction, be the B component;
By weight, 50-70 part A and component 30-50 part B component are mixed, stir.
Thermal-adhering of the present invention can be used for making raincoat or rain boots with the dry-process polyurethane synthetic leather resin material.
Embodiment
Further specify the present invention below by embodiment
Embodiment
Embodiment 1
(1) batching of component A
Diphenylmethanediisocyanate (MDI) 118kg,
Poly adipate succinic acid ester (number-average molecular weight 2000) 175kg,
Ethylene glycol 23.9kg,
DMF 520kg,
Butanone 220kg;
(2) preparation method of component A
In with 1000 kilograms of reactors that stir, drop into diphenylmethanediisocyanate, poly adipate succinic acid ester, ethylene glycol by above weight, in nitrogen atmosphere, react, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into simultaneously N, the mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃), get final product termination reaction, discharging;
(3) batching of B component
Diphenylmethanediisocyanate (MDI) 113kg,
Poly-hexanodioic acid methyl propanediol ester (number-average molecular weight 2000) 275kg,
Ethylene glycol 3.3kg,
1,6-hexylene glycol 31.2kg,
DMF 440kg,
Butanone 195kg;
(4) preparation method of B component
In with 1000 kilograms of reactors that stir, drop into diphenylmethanediisocyanate, poly adipate succinic acid ester, ethylene glycol and 1 by above weight, the 6-hexylene glycol reacts in nitrogen atmosphere, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into simultaneously N, the mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃), get final product termination reaction, discharging;
(5) the thermal-adhering preparation method of dry-process polyurethane synthetic leather resin material
With urethane resin A component 65kg and urethane resin B component 35kg, stir, make thermal-adhering dry-method chemical leather urethane resin.
Embodiment 2
(1) batching of component A
Diphenylmethanediisocyanate (MDI) 102kg,
Polyethylene glycol adipate dibasic alcohol (number-average molecular weight 2000) 140kg,
Ethylene glycol 14.7kg,
BDO 9.2kg,
DMF 640kg,
Butanone 159kg;
(2) preparation method of component A
In with 1000 kilograms of reactors that stir, drop into diphenylmethanediisocyanate, poly adipate succinic acid ester, ethylene glycol by above weight, in nitrogen atmosphere, react, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into simultaneously N, the mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃), get final product termination reaction, discharging;
(3) configuration of B component:
Urethane resin B component is made by following weight part reaction by following component, is the polyurethane resin solution of 45 % by weight, and viscosity is 80000-100000mPas (25 ℃).
Diphenylmethanediisocyanate (MDI) 126.35kg,
Poly adipate succinic acid ester (number-average molecular weight 2000) 305kg,
BDO 9.53kg,
1,6-hexylene glycol 29.15kg,
Toluene 260kg,
Ethyl acetate 114kg,
Butanone 200kg;
(4) preparation method of B component
To dropping into diphenylmethanediisocyanate, poly adipate succinic acid ester, 1 with pressing above weight in 1000 kilograms of reactors that stir, 4-butyleneglycol and 1, the 6-hexylene glycol reacts in nitrogen atmosphere, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into simultaneously toluene, the mixed solvent of ethyl acetate and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃), get final product termination reaction, discharging;
(5) the thermal-adhering preparation method of dry-process polyurethane synthetic leather resin material
With component A 60kg and B component 40kg, under 70-80 ℃, stir, make thermal-adhering dry-method chemical leather urethane resin.
Embodiment 3
(1) batching of component A
Diphenylmethanediisocyanate (MDI) 142.5kg,
Poly adipate succinic acid ester (number-average molecular weight 2000) 185kg,
BDO 42.9kg,
DMF 550.4kg,
Butanone 137.6kg;
(2) preparation method of component A
To dropping into diphenylmethanediisocyanate, poly adipate succinic acid ester with pressing above weight in 1000 kilograms of reactors that stir, 1, the 4-butyleneglycol reacts in nitrogen atmosphere, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into simultaneously N, the mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃), get final product termination reaction, discharging;
(3) batching of B component
Diphenylmethanediisocyanate (MDI) 126.6kg,
Polyneopentyl glycol adipate (number-average molecular weight 2000) 305kg,
Neopentyl glycol 18.4kg,
1,6-hexylene glycol 20.8kg,
DMF 460kg,
Butanone 116kg;
(4) preparation method of B component
To dropping into diphenylmethanediisocyanate, polyneopentyl glycol adipate with pressing above weight in 1000 kilograms of reactors that stir, neopentyl glycol and 1, the 6-hexylene glycol reacts in nitrogen atmosphere, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into simultaneously N, the mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃), get final product termination reaction, discharging;
(5) the thermal-adhering preparation method of dry-process polyurethane synthetic leather resin material
With component A 70kg and B component 30kg, under 70-80 ℃, stir, make thermal-adhering dry-method chemical leather urethane resin.
Embodiment 4
(1) batching of component A
Isophorone diisocyanate (IPDI) 67.24kg,
Poly adipate succinic acid ester (number-average molecular weight 2000) 215kg,
BDO 3.43kg
Isophorone diamine 26.73kg,
DMF 510.3kg,
Toluene 218.7kg;
(2) preparation method of component A
To dropping into isophorone diisocyanate, poly adipate succinic acid ester with pressing above weight in 1000 kilograms of reactors that stir, BDO, isophorone diamine, in nitrogen atmosphere, react, temperature of reaction 70-80 ℃, stir the mixed solvent that slowly drops into simultaneously DMF and butanone in the reaction process, treat that solvent adds, record soltion viscosity and rise to 80000-100000mPas (25 ℃), get final product termination reaction, discharging;
(3) batching of B component
Diphenylmethanediisocyanate (MDI) 126.6kg,
Polyneopentyl glycol adipate (number-average molecular weight 2000) 305kg,
Neopentyl glycol 18.4kg,
1,6-hexylene glycol 20.8kg,
N-formyl sarcolysine base pyrrolidone 460kg,
Butanone 116kg;
(4) preparation method of B component
To dropping into diphenylmethanediisocyanate, polyneopentyl glycol adipate with pressing above weight in 1000 kilograms of reactors that stir, neopentyl glycol and 1, the 6-hexylene glycol reacts in nitrogen atmosphere, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into simultaneously N, the mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃), get final product termination reaction, discharging;
(5) the thermal-adhering preparation method of dry-process polyurethane synthetic leather resin material
With component A 70kg and B component 30kg, under 70-80 ℃, stir, make thermal-adhering dry-method chemical leather urethane resin.
Embodiment 5
(1) batching of component A
Diphenylmethanediisocyanate (MDI) 142.5kg,
Poly adipate succinic acid ester (number-average molecular weight 2000) 185kg,
BDO 42.9kg,
DMF 550.4kg,
Butanone 137.6kg;
(2) preparation method of component A
To dropping into diphenylmethanediisocyanate, poly adipate succinic acid ester with pressing above weight in 1000 kilograms of reactors that stir, 1, the 4-butyleneglycol reacts in nitrogen atmosphere, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into simultaneously N, the mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃), get final product termination reaction, discharging;
(3) batching of B component
Isophorone diisocyanate (IPDI) 77.88kg,
Polyneopentyl glycol adipate (number-average molecular weight 2000) 195kg,
Neopentyl glycol 7.4kg,
Isophorone diamine 30.96kg,
DMF 508.4kg,
Ethyl acetate 217.9kg;
(4) preparation method of B component
To dropping into isophorone diisocyanate, polyneopentyl glycol adipate with pressing above weight in 1000 kilograms of reactors that stir, neopentyl glycol and isophorone diamine, in nitrogen atmosphere, react, temperature of reaction 70-80 ℃, stir the mixed solvent that slowly drops into simultaneously DMF and butanone in the reaction process, treat that solvent adds, record soltion viscosity and rise to 80000-100000mPas (25 ℃), get final product termination reaction, discharging;
(5) the thermal-adhering preparation method of dry-process polyurethane synthetic leather resin material
With component A 70kg and B component 30kg, under 70-80 ℃, stir, make thermal-adhering dry-method chemical leather urethane resin.
To the coating performance of this resin investigate mainly by thermal-adhering with the time qualification rate estimate, qualification rate is defined as: qualified samples is counted ÷ gross sample number * 100%
The thermal-adhering that above-mentioned three embodiment obtain carries out respectively 180 ℃ of thermal-adhering tests with the made synthetic leather sample of dry-method chemical leather urethane resin, 100 samples of every group of test, and gained test result such as following table:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Sample number | 100 | 100 | 100 | 100 | 100 |
| The salable product number | 100 | 100 | 100 | 100 | 100 |
| The substandard products number | 0 | 0 | 0 | 0 | 0 |
| Qualification rate | 100％ | 100％ | 100％ | 100％ | 100％ |
Resin material of the present invention is made the dry-method chemical leather fabric, can take in use the mode of direct hot pressing to fit, need not to add in addition tackiness agent, save cost, simultaneously also avoid the in use problem that pollutes of solvent evaporates of common solvent type tackiness agent, also need not linear slit, the line eye pin hole of having avoided suturing with thread management to cause, good leak tightness is applicable to the waterproof clothes such as raincoat rain boots.
Claims (18)
1. a thermal-adhering dry-process polyurethane synthetic leather resin material is characterized in that, by weight, comprises A component 50-70 part and B component 30-50 part,
The composition of described each material of A component is: by weight,
The composition of described each material of B component is: by weight,
With vulcabond, polyester diol, chainextender, in nitrogen atmosphere, react temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into simultaneously solvent, treat that solvent adds, record soltion viscosity and rise under 25 ℃, 80000-100000mPas gets final product termination reaction, is the A component;
With vulcabond, polyester diol, chainextender, in nitrogen atmosphere, react temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into simultaneously solvent, treat that solvent adds, record soltion viscosity and rise under 25 ℃, 80000-100000mPas gets final product termination reaction, is the B component;
By weight, 50-70 part A and component 30-50 part B component are mixed, stir.
2. thermal-adhering according to claim 1 dry-process polyurethane synthetic leather resin material is characterized in that, the polyester diol in the described A component is aliphatic polyester binary alcohol, aromatic polyester dibasic alcohol or PCDL.
3. thermal-adhering according to claim 2 dry-process polyurethane synthetic leather resin material, it is characterized in that aliphatic polyester binary alcohol is the poly-succinic DOPCP dibasic alcohol of 500-2000 for number-average molecular weight, number-average molecular weight is the polyethylene glycol adipate dibasic alcohol of 500-3000, number-average molecular weight is the poly adipate succinic acid ester dibasic alcohol of 1000-3000, number-average molecular weight is the polyneopentyl glycol adipate dibasic alcohol of 1000-3000, number-average molecular weight is the poly-diethylene glycol adipate dibasic alcohol of 1000-3000, number-average molecular weight is the polydiethylene glycol sebacate dibasic alcohol of 1000-3000 or contains Succinic Acid and the mass ratio of hexanodioic acid is that 40:60 and number-average molecular weight are the mixing acid butanediol ester dibasic alcohol of 1000-3000.
4. thermal-adhering according to claim 2 dry-process polyurethane synthetic leather resin material, it is characterized in that the aromatic polyester dibasic alcohol is that number-average molecular weight is the ethylene isophthalate dibasic alcohol of 400-1000, number-average molecular weight is the m-phthalic acid glycol ether ester dibasic alcohol of 400-1000, number-average molecular weight is the m-phthalic acid DOPCP dibasic alcohol of 400-1000, number-average molecular weight is the ethylene glycol terephthalate dibasic alcohol of 400-1000, number-average molecular weight is the terephthalic acid glycol ether ester dibasic alcohol of 400-1000 or the terephthalic acid DOPCP dibasic alcohol that number-average molecular weight is 400-1000.
5. thermal-adhering according to claim 1 dry-process polyurethane synthetic leather resin material is characterized in that, the chainextender in the described A component is aliphatic dihydric alcohol, aromatic diamine or aliphatic diamine.
6. thermal-adhering according to claim 5 dry-process polyurethane synthetic leather resin material, it is characterized in that, aliphatic dihydric alcohol is ethylene glycol, methyl propanediol, butyleneglycol, neopentyl glycol, 3-methyl pentanediol, 1, the mixture of one or more in 6-hexylene glycol, the glycol ether.
7. thermal-adhering according to claim 5 dry-process polyurethane synthetic leather resin material, it is characterized in that, aromatic diamine is tolylene diamine, 3,3-two chloro-4,4-diphenylmethanediamiand, 4,4-diaminodiphenyl-methane, 3,5-diethyl toluene diamine, 3,5 dimethythiotoluene diamines, 3, the mixture of one or more in the 3-dichloro benzidine.
8. thermal-adhering according to claim 5 dry-process polyurethane synthetic leather resin material is characterized in that, aliphatic diamine is isophorone diamine, dicyclohexyl methyl hydride diamines, hexanediamine or quadrol or cyclohexanediamine.
9. thermal-adhering according to claim 1 dry-process polyurethane synthetic leather resin material is characterized in that, the polyester diol in the described B component is that number-average molecular weight is the adipic acid type polyester diol of 700-10000.
10. thermal-adhering according to claim 1 dry-process polyurethane synthetic leather resin material is characterized in that, the chainextender in the described B component is aliphatic dihydric alcohol or aliphatic diamine.
11. thermal-adhering according to claim 10 dry-process polyurethane synthetic leather resin material, it is characterized in that, aliphatic dihydric alcohol is ethylene glycol, methyl propanediol, butyleneglycol, neopentyl glycol, 3-methyl pentanediol, 1, the mixture of one or more in 6-hexylene glycol, the glycol ether.
12. thermal-adhering according to claim 10 dry-process polyurethane synthetic leather resin material is characterized in that, aliphatic diamine is isophorone diamine, dicyclohexyl methyl hydride diamines, hexanediamine, quadrol or cyclohexanediamine.
13. thermal-adhering according to claim 1 dry-process polyurethane synthetic leather resin material is characterized in that, the vulcabond in described A component and the B component is aliphatic diisocyanate and derivative or aromatic diisocyanate and derivative thereof.
14. thermal-adhering according to claim 13 dry-process polyurethane synthetic leather resin material, it is characterized in that, aliphatic diisocyanate is 1, hexamethylene-diisocyanate, isophorone diisocyanate, dicyclohexyl methane diisocyanate, Isosorbide-5-Nitrae-cyclohexyl diisocyanate, norbornene alkyl diisocyanate, Methylcyclohexyl diisocyanate or cyclohexyl dimethylene diisocyanate.
15. thermal-adhering according to claim 13 dry-process polyurethane synthetic leather resin material is characterized in that, the aliphatic diisocyanate derivative is the hexamethylene diisocyanate dimer.
16. thermal-adhering according to claim 13 dry-process polyurethane synthetic leather resin material, it is characterized in that aromatic diisocyanate is tolylene diisocyanate, diphenylmethanediisocyanate, dimethyl diphenyl vulcabond, naphthalene diisocyanate or xylylene diisocyanate.
17. thermal-adhering according to claim 13 dry-process polyurethane synthetic leather resin material is characterized in that, the aromatic diisocyanate derivative is liquefaction diphenylmethanediisocyanate or toluene diisocyanate dimer.
18. thermal-adhering according to claim 1 dry-process polyurethane synthetic leather resin material, it is characterized in that, solvent in described A component and the B component is one or more mixture of butanone, toluene, DMF, ethyl acetate, N-Methyl pyrrolidone.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110439855 CN102558486B (en) | 2011-12-23 | 2011-12-23 | Dry-process polyurethane synthetic leather resin material for hot attaching, preparation method and uses |
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| CN 201110439855 CN102558486B (en) | 2011-12-23 | 2011-12-23 | Dry-process polyurethane synthetic leather resin material for hot attaching, preparation method and uses |
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| Publication Number | Publication Date |
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| CN102558486A CN102558486A (en) | 2012-07-11 |
| CN102558486B true CN102558486B (en) | 2013-10-30 |
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| CN103554425B (en) * | 2013-10-29 | 2016-01-27 | 上海汇得化工有限公司 | A kind of Polyurethane resin for raincoat leather and preparation method thereof |
| CN106674471B (en) * | 2015-11-11 | 2019-09-03 | 万华化学集团股份有限公司 | A kind of thermoplastic polyurethane elastomer and preparation method thereof, purposes and product |
| CN105482054B (en) * | 2015-12-21 | 2018-07-17 | 上海鸿得聚氨酯有限公司 | A kind of modified polyurethane resin and preparation method thereof |
| CN106008912A (en) * | 2016-05-24 | 2016-10-12 | 南通紫琅生物医药科技有限公司 | Novel polyurethane |
| CN105949434B (en) * | 2016-06-16 | 2018-12-11 | 旭川化学（昆山）有限公司 | A kind of B component Isocyanate prepolymers body being used to prepare microcellular polyurethane elastomer and polyurethane bicomponent and application |
| CN108129633B (en) * | 2017-12-14 | 2020-09-11 | 上海华峰新材料研发科技有限公司 | Folding-resistant high-transparency mirror polyurethane resin and preparation method and application thereof |
| CN108485242B (en) * | 2018-03-16 | 2020-12-04 | 上海汇得科技股份有限公司 | High-astringency wet-process polyurethane resin and preparation method thereof |
| CN109454942A (en) * | 2018-12-21 | 2019-03-12 | 清远市齐力合成革有限公司 | A kind of high density height removing deer fibre suede synthetic leather |
| CN110951038B (en) * | 2019-05-14 | 2022-02-08 | 天津科技大学 | Novel polyurethane film and preparation thereof |
| CN111217979B (en) * | 2020-02-27 | 2022-08-19 | 合肥科天水性科技有限责任公司 | Solvent-free polyurethane resin capable of being hot-cut at high frequency for synthetic leather and preparation method thereof |
| CN112280283B (en) * | 2020-10-17 | 2021-06-18 | 浙江禾欣科技有限公司 | Double-component polyurethane resin for automobile leather and preparation method thereof |
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