CN104987489A - Highly-wear-resistant, low-temperature-resistant, folding-resistant, hydrolysis-resistant polyurethane surfacing resin - Google Patents
Highly-wear-resistant, low-temperature-resistant, folding-resistant, hydrolysis-resistant polyurethane surfacing resin Download PDFInfo
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- CN104987489A CN104987489A CN201510411756.XA CN201510411756A CN104987489A CN 104987489 A CN104987489 A CN 104987489A CN 201510411756 A CN201510411756 A CN 201510411756A CN 104987489 A CN104987489 A CN 104987489A
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- resistance
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- low temperature
- resistant
- high abrasion
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- 229920005989 resin Polymers 0.000 title claims abstract description 22
- 239000011347 resin Substances 0.000 title claims abstract description 22
- 230000007062 hydrolysis Effects 0.000 title claims abstract description 19
- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 19
- 239000004814 polyurethane Substances 0.000 title claims abstract description 19
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000000203 mixture Substances 0.000 claims abstract description 33
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002904 solvent Substances 0.000 claims abstract description 26
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 239000004970 Chain extender Substances 0.000 claims abstract description 13
- 229920000728 polyester Polymers 0.000 claims abstract description 12
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims abstract description 11
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical group C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 45
- 238000005299 abrasion Methods 0.000 claims description 27
- 239000002344 surface layer Substances 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 229920005862 polyol Polymers 0.000 claims description 14
- 150000003077 polyols Chemical class 0.000 claims description 14
- 239000012752 auxiliary agent Substances 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 150000002009 diols Chemical class 0.000 claims description 9
- BJZYYSAMLOBSDY-QMMMGPOBSA-N (2s)-2-butoxybutan-1-ol Chemical compound CCCCO[C@@H](CC)CO BJZYYSAMLOBSDY-QMMMGPOBSA-N 0.000 claims description 6
- 238000010189 synthetic method Methods 0.000 claims description 6
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052710 silicon Inorganic materials 0.000 abstract description 2
- 239000010703 silicon Substances 0.000 abstract description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 4
- 150000005846 sugar alcohols Polymers 0.000 abstract 3
- 125000005442 diisocyanate group Chemical group 0.000 abstract 2
- 229920000909 polytetrahydrofuran Polymers 0.000 abstract 2
- JBJWASZNUJCEKT-UHFFFAOYSA-M sodium;hydroxide;hydrate Chemical compound O.[OH-].[Na+] JBJWASZNUJCEKT-UHFFFAOYSA-M 0.000 abstract 1
- 239000000178 monomer Substances 0.000 description 5
- 239000006260 foam Substances 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 239000001993 wax Substances 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- -1 pottery Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical group NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 229920002334 Spandex Polymers 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000006157 aromatic diamine group Chemical group 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000004427 diamine group Chemical group 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000004759 spandex Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a highly-wear-resistant, low-temperature-resistant, folding-resistant, hydrolysis-resistant polyurethane surfacing resin. The formula of the resin comprises the following components in parts by weight: 15 to 18 parts of a polyhydric alcohol mixture, 68 to 72 parts of a solvent, 0.7 to 1.3 parts of a chain extender, 10 to 12 parts of diisocyanate, 0.04 to 0.06 parts of methyl alcohol and 0.5 to 2 parts of an assistant, wherein polyhydric alcohol is the mixture of polytetrahydrofuran glycol and polyester glycol, the mixing weight ratio of the polytetrahydrofuran glycol and the polyester glycol is (1 to 1) to (4 to 1), and polyhydric alcohol molecular weight is 1,000 to 3,000; the solvent is the mixture of N,N-dimethylformamide and butanone; the diisocyanate is diphenyl-methane-diisocyanate; the assistant is one or two of an organic silicon mixture and wax powder. A product prepared by the resin has the wear resistance being H-22, and is not broken above 800 rpm at the weight of 1kg, has the low-temperature folding resistance being above 80,000 times at the temperature of minus 20 DEG C, and has the hydrolytic resistance being not broken by being soaked in a 10 percent NaOH water solution for above 24 hours at the temperature below 25 DEG C.
Description
Technical field
The present invention relates to a kind of Chemicals field, relate to a kind of high abrasion, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin particularly.
Background technology
Urethane resin (Polyurethane Resin), as a kind of macromolecular material with high strength, anti tear, the characteristic such as wear-resisting, is widely used in the fields such as daily life, industrial and agricultural production, medical science.As cylinder, travelling belt, flexible pipe, auto parts, sole, synthetic leather, electric wire and medical artificial organ etc.; Flexible foam is used for the liner of vehicle, room, clothes, hard foam is as heat insulation, sound-absorbing, packaging, insulation and low ratio foamed synthetic wood, coating is used for advanced vehicle, furniture, wood and metal protection, pond dam and building anti-seepage material, and fabric coating etc.Tackiness agent has good clinging power to metal, glass, pottery, leather, fiber etc.In addition urethane also can be made into emulsion, magneticsubstance etc.
Urethane resin main chain is containing a base polymer of-NHCOO-repeated structural unit.English abbreviation PU.Be polymerized by isocyanic ester (monomer) and oxy-compound.Due to the carbamate groups containing strong polarity, be insoluble to non-polar group, there is good oil-proofness, toughness, wear resistance, ageing resistance and binding property.
Conventional monomer is as tolylene diisocyanate, vulcabond ditane etc.Polyvalent alcohol divides 3 classes: simple polyvalent alcohol (ethylene glycol, glycerol etc.); Containing the polyester oligomer of terminal hydroxyl, be used for preparing PAUR; Containing the polyether oligomers of terminal hydroxyl, be used for preparing polyether(poly)urethane.Polymerization process is different with material character.First prepare low molecular weight diol during synthetic elastomer, then react with excessive aromatic isocyanate, generating isocyanic ester is the prepolymer of end group, more same chain expansion of succinic acid, obtains thermoplastic elastomer; If also crosslinked further with aromatic diamine chain extension, obtain casting type elastomerics.Prepolymer hydrazine or diamine chain extension, obtain spandex fiber; The excessive more performed polymer of isocyanic ester mixes with catalyzer, whipping agent, directly can obtain rigid foam.As by mixing such as monomer, polyethers, water, catalyzer, single step reaction can obtain flex foam.Monomer and polyvalent alcohol react in the solution, can obtain coating; Tackiness agent then mixes in use with polyisocynate monomer and low-molecular-weight polyester or polyethers and reacts.
Now wear resistant resin on the market adopts poly-carbon dibasic alcohol to synthesize substantially, and its wear resisting property is better, but does not reach good requirement in hydrolysis, low temperature folding, makes it cannot meet the requirement of high-end leather.
Summary of the invention
The object of the present invention is to provide a kind of high abrasion, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, to solve the above-mentioned problems in the prior art.
Technical scheme provided by the invention is as follows:
The synthetic method of a kind of high abrasion, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, described high abrasion is H-22,1kg more than 700 turns, and low temperature folding resistance is-20 degree more than 40,000 times, hydrolytic resistance is 10%NaOH 25 degree more than 12 hours, and method comprises the steps:
1) formula combination, by weight, comprises
Polyol blends 15-18 part: polyvalent alcohol is the mixture of PTMG and polyester diol, both blending ratios are 1:1-4:1, and polyol molecular weight is 1000-3000;
Solvent 68-72 part: the mixture being DMF, butanone, ratio is 1-2:2-1;
Chainextender 0.7-1.3 part: be the one in ethylene glycol and Isosorbide-5-Nitrae butyleneglycol or 2 kinds;
Vulcabond 10-12 part: be diphenylmethanediisocyanate;
Methyl alcohol 0.04-0.06 part;
Auxiliary agent 0.5-2 part: a kind in organosilicon mixture, wax powder or 2 kinds;
2) polyol blends, 10-30 part partial solvent are dropped in reactor, fully stir, then add 3-8 part vulcabond, under 75-85 degree condition, react 1-3 hour;
3) add 20-30 part solvent, all chainextender again, under 75-85 degree condition, react 0.5-2 hour;
4) add remaining vulcabond and solvent, control the viscosity of product, solid content, make its viscosity controller at 8-14 ten thousand cps/25 DEG C, solid content controls between 29%-31%;
5) add methyl alcohol, auxiliary agent, stir.
In the preferred embodiment, described high abrasion is H-22,1kg more than 900 turns, and low temperature folding resistance is-20 degree more than 40,000 times, and hydrolytic resistance is 10%NaOH 25 degree more than 12 hours.
In the preferred embodiment, described high abrasion is H-22,1kg more than 850 turns, and low temperature folding resistance is-20 degree more than 60,000 times, and hydrolytic resistance is 10%NaOH 25 degree more than 16 hours.
In the preferred embodiment, described high abrasion is H-22,1kg more than 800 turns, and low temperature folding resistance is-20 degree more than 80,000 times, and hydrolytic resistance is 10%NaOH 25 degree more than 24 hours.
In the preferred embodiment, described high abrasion is H-22,1kg more than 700 turns, and low temperature folding resistance is-20 degree more than 90,000 times, and hydrolytic resistance is 10%NaOH 25 degree more than 30 hours.
In the preferred embodiment, polyester diol is that AA/BDO synthesizes polyvalent alcohol, or AA/EG/BDO synthesizes polyvalent alcohol.
In the preferred embodiment, the blending ratio of DMF and butanone is 2:1-1:2.
Organosilicon mixture of the present invention, comprises at least one in following kind: the mixture of the organic silicon solution such as alkylalkoxy silane (wherein alkyl or the alkoxyl group preferably carbon of less than 12, is more preferably less than 8), water glass.
Advantage of the present invention is as follows: the invention provides a kind of high abrasion, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, its wear resistance reaches H-22,1kg more than 700 turns, low temperature folding resistance reaches-20 degree more than 40,000 times, and hydrolytic resistance reaches 10%NaOH 25 degree more than 12 hours.The present invention gives the characteristic of product high abrasion and high/low temperature folding, solves the bad shortcoming coexisted of these two kinds of performances.
Embodiment
Embodiment 1
A synthetic method for high abrasion, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, comprises the steps:
1) formula combination, by weight, comprises
Polyol blends 15 parts: polyvalent alcohol is the mixture of PTMG (Xiao Xing Chemical Co., Ltd. PBED-2000) and polyester diol (Guo Bang resin company limited GBP-3020), and both blending ratios are 1:1;
Solvent 68 parts: the mixture being DMF, butanone, blending ratio is 1:1;
Chainextender 1.3 parts: be ethylene glycol;
Vulcabond 12 parts: be diphenylmethanediisocyanate;
Methyl alcohol 0.05 part;
Auxiliary agent 1 part: paraffin powder;
2) polyol blends, partial solvent (10 parts) are dropped in reactor, fully stir, then add part vulcabond (3 parts), react 2 hours under 80 degree of conditions;
3) add partial solvent (30 parts), all chainextender again, react 0.5 hour under 80 degree of conditions;
4) add remaining vulcabond and solvent, control the viscosity of product, solid content, make its viscosity controller at 8-14 ten thousand cps/25 DEG C, solid content controls between 29%-31%;
5) add methyl alcohol, auxiliary agent, stir.
As a result, wear-resisting is H-22,1kg more than 900 turns, and low temperature folding resistance is-20 degree more than 40,000 times, and hydrolytic resistance is 10%NaOH 25 degree more than 12 hours.
Embodiment 2
A synthetic method for high abrasion, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, comprises the steps:
1) formula combination, by weight, comprises
Polyol blends 15 parts: polyvalent alcohol is the mixture of PTMG and polyester diol, both blending ratios are 2:1;
Solvent 68 parts: the mixture being DMF, butanone, blending ratio is 1:1;
Chainextender 0.7 part: be 1:1 mixing in ethylene glycol, Isosorbide-5-Nitrae butyleneglycol;
Vulcabond 12 parts: be diphenylmethanediisocyanate;
Methyl alcohol 0.05 part;
Auxiliary agent 0.5 part: wax powder;
2) polyol blends, partial solvent (15 parts) are dropped in reactor, fully stir, then add part vulcabond (8 parts), react 3 hours under 75 degree of conditions;
3) add partial solvent (15 parts), all chainextender again, react 0.5 hour under 85 degree of conditions;
4) add remaining vulcabond and solvent, control the viscosity of product, solid content, make its viscosity controller at 8-14 ten thousand cps/25 DEG C, solid content controls between 29%-31%;
5) add methyl alcohol, auxiliary agent, stir.
Result: wear-resisting is H-22,1kg more than 850 turns, low temperature folding resistance is-20 degree more than 60,000 times, and hydrolytic resistance is 10%NaOH 25 degree more than 16 hours.
Embodiment 3
A synthetic method for high abrasion, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, comprises the steps:
1) formula combination, by weight, comprises
Polyol blends 18 parts: polyvalent alcohol is the mixture of PTMG and polyester diol, both blending ratios are 3:1;
Solvent 68 parts: the mixture being DMF, butanone, blending ratio is 1:1;
Chainextender 1.3 parts: ethylene glycol;
Vulcabond 10 parts: be diphenylmethanediisocyanate;
Methyl alcohol 0.05 part;
Auxiliary agent 1 part: wax powder;
2) polyol blends, partial solvent (30 parts) are dropped in reactor, fully stir, then add part vulcabond (3 parts), react 1 hour under 85 degree of conditions;
3) 2) in add partial solvent (15 parts), all chainextender again, react 0.5 hour under 85 degree of conditions;
4) add remaining vulcabond and solvent, control the viscosity of product, solid content, make its viscosity controller at 8-14 ten thousand cps/25 DEG C, solid content controls between 29%-31%;
5) add methyl alcohol, auxiliary agent, stir.
Result: wear-resisting is H-22,1kg more than 800 turns, low temperature folding resistance is-20 degree more than 80,000 times, and hydrolytic resistance is 10%NaOH 25 degree more than 24 hours
Embodiment 4
A synthetic method for high abrasion, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, comprises the steps:
1) formula combination, by weight, comprises
Polyol blends 18 parts: polyvalent alcohol is the mixture of PTMG and polyester diol, both blending ratios are 4:1;
Solvent 70 parts: the mixture being DMF, butanone, blending ratio is 1:1;
Chainextender 1.2 parts: for ethylene glycol, Isosorbide-5-Nitrae butyleneglycol 1:1 mix;
Vulcabond 10 parts: be diphenylmethanediisocyanate;
Methyl alcohol 0.05 part;
Auxiliary agent 2 parts: wax powder;
2) polyol blends, partial solvent (25 parts) are dropped in reactor, fully stir, then add part vulcabond (5 parts), react 1 hour under 85 degree of conditions;
3) add partial solvent (15 parts), all chainextender again, react 0.5 hour under 85 degree of conditions;
4) add remaining vulcabond and solvent, control the viscosity of product, solid content, make its viscosity controller at 8-14 ten thousand cps/25 DEG C, solid content controls between 29%-31%;
5) add methyl alcohol, auxiliary agent, stir.
Result: wear-resisting is H-22,1kg more than 700 turns, low temperature folding resistance is-20 degree more than 90,000 times, and hydrolytic resistance is 10%NaOH 25 degree more than 30 hours.
Claims (7)
1. a high abrasion, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, described high abrasion is H-22,1kg more than 800 turns, and low temperature folding resistance is-20 degree more than 80,000 times, hydrolytic resistance is 10%NaOH 25 degree more than 24 hours, and its synthetic method comprises the steps:
1) formula combination, by weight, comprises
Polyol blends 15-18 part: polyvalent alcohol is the mixture of PTMG and polyester diol, both blending ratios are 1:1-4:1, and polyol molecular weight is 1000-3000;
Solvent 68-72 part: the mixture being DMF, butanone, ratio is 1-2:2-1;
Chainextender 0.7-1.3 part: be the one in ethylene glycol and Isosorbide-5-Nitrae butyleneglycol or 2 kinds;
Vulcabond 10-12 part: be diphenylmethanediisocyanate;
Methyl alcohol 0.04-0.06 part;
Auxiliary agent 0.5-2 part: a kind in organosilicon mixture, wax powder or 2 kinds;
2) polyol blends, 10-30 part partial solvent are dropped in reactor, fully stir, then add 3-8 part vulcabond, under 75-85 degree condition, react 1-3 hour;
3) add 20-30 part solvent, all chainextender again, under 75-85 degree condition, react 0.5-2 hour;
4) add remaining vulcabond and solvent, control the viscosity of product, solid content, make its viscosity controller at 8-14 ten thousand cps/25 DEG C, solid content controls between 29%-31%;
5) add methyl alcohol, auxiliary agent, stir.
2. a kind of high abrasion as claimed in claim 1, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, it is characterized in that: described high abrasion is H-22,1kg more than 900 turns, low temperature folding resistance is-20 degree more than 40,000 times, and hydrolytic resistance is 10%NaOH 25 degree more than 12 hours.
3. a kind of high abrasion as claimed in claim 1, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, it is characterized in that: described high abrasion is H-22,1kg more than 850 turns, low temperature folding resistance is-20 degree more than 60,000 times, and hydrolytic resistance is 10%NaOH 25 degree more than 16 hours.
4. a kind of high abrasion as claimed in claim 1, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, it is characterized in that: described high abrasion is H-22,1kg more than 800 turns, low temperature folding resistance is-20 degree more than 80,000 times, and hydrolytic resistance is 10%NaOH 25 degree more than 24 hours.
5. a kind of high abrasion as claimed in claim 1, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, it is characterized in that: described high abrasion is H-22,1kg more than 700 turns, low temperature folding resistance is-20 degree more than 90,000 times, and hydrolytic resistance is 10%NaOH 25 degree more than 30 hours.
6. a kind of high abrasion as claimed in claim 1, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, is characterized in that: polyester diol is that AA/BDO synthesizes polyvalent alcohol, or AA/EG/BDO synthesizes polyvalent alcohol.
7. a kind of high abrasion as claimed in claim 1, low temperature resistant, resistance to complications, hydrolysis resistant polyurethane surface layer resin, is characterized in that: the blending ratio of DMF and butanone is 1-1.
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| CN109694581B (en) * | 2017-10-23 | 2022-02-15 | 万华化学集团股份有限公司 | Dynamic vulcanized silicone rubber/thermoplastic polyurethane elastomer material and preparation method thereof |
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| CN115181238A (en) * | 2022-07-07 | 2022-10-14 | 上海华峰新材料研发科技有限公司 | Wear-resistant hydrolysis-resistant polyurethane resin and preparation method and application thereof |
| CN115181238B (en) * | 2022-07-07 | 2024-03-08 | 上海华峰新材料研发科技有限公司 | Wear-resistant hydrolysis-resistant polyurethane resin and preparation method and application thereof |
| CN116141799A (en) * | 2022-12-21 | 2023-05-23 | 东莞市雄林新材料科技股份有限公司 | TPU composite decorative film |
| CN116141799B (en) * | 2022-12-21 | 2024-10-01 | 东莞市雄林新材料科技股份有限公司 | TPU composite decorative film |
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