CN103694449A - Synthesis method of polyurethane elastomer for printing rubber roller - Google Patents
Synthesis method of polyurethane elastomer for printing rubber roller Download PDFInfo
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- CN103694449A CN103694449A CN201310684497.9A CN201310684497A CN103694449A CN 103694449 A CN103694449 A CN 103694449A CN 201310684497 A CN201310684497 A CN 201310684497A CN 103694449 A CN103694449 A CN 103694449A
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- Prior art keywords
- printing rubber
- rubber roll
- polyurethane elastomer
- urethane elastomer
- roll method
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 42
- 238000007639 printing Methods 0.000 title claims abstract description 26
- 229920003225 polyurethane elastomer Polymers 0.000 title abstract description 15
- 238000001308 synthesis method Methods 0.000 title abstract 4
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 9
- JCIIKRHCWVHVFF-UHFFFAOYSA-N 1,2,4-thiadiazol-5-amine;hydrochloride Chemical compound Cl.NC1=NC=NS1 JCIIKRHCWVHVFF-UHFFFAOYSA-N 0.000 claims abstract description 4
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 claims abstract description 4
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims abstract description 4
- OOCYPIXCHKROMD-UHFFFAOYSA-M phenyl(propanoyloxy)mercury Chemical compound CCC(=O)O[Hg]C1=CC=CC=C1 OOCYPIXCHKROMD-UHFFFAOYSA-M 0.000 claims abstract description 4
- 229940096826 phenylmercuric acetate Drugs 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims abstract description 4
- 229920006311 Urethane elastomer Polymers 0.000 claims description 16
- 230000002194 synthesizing effect Effects 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 11
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 2
- 239000002904 solvent Substances 0.000 abstract description 6
- 239000004014 plasticizer Substances 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003054 catalyst Substances 0.000 abstract 2
- 239000012975 dibutyltin dilaurate Substances 0.000 abstract 1
- 125000005442 diisocyanate group Chemical group 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 238000009849 vacuum degassing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 239000004902 Softening Agent Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005012 migration Effects 0.000 description 3
- 238000013508 migration Methods 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 239000000126 substance Substances 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
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
- C08G18/4241—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols from dicarboxylic acids and dialcohols in combination with polycarboxylic acids and/or polyhydroxy compounds which are at least trifunctional
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4244—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups
- C08G18/4247—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids
- C08G18/425—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids the polyols containing one or two ether groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/20—Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
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 synthesis method of a polyurethane elastomer for a printing rubber roller, relating to a preparation method of a polyurethane elastomer. The invention aims at providing a synthesis method of a polyurethane elastomer which does not contain any plasticizer or volatile component, has good solvent resistance, good rebound resilience and little compression set and is suitable for manufacturing a high-speed printer. The synthesis method of a polyurethane elastomer for a printing rubber roller, disclosed by the invention, comprises the steps of performing vacuum degassing on 80-120 parts of polyester polyol at 100-130 DEG C, and stirring and uniformly mixing with 6-12 parts of diisocyanate and 0.1-1 part of catalyst at 90-110 DEGE C; injecting the mixture into a preheated mould at 100-120 DEG C, and vulcanizing for 16-24 hours to form the polyurethane elastomer, wherein the catalyst is one or a mixture of more than one of dibutyltin dilaurate, stannous octoate, dibutyl tin diacetate, phenylmercuric acetate and phenyl mercury propionate.
Description
Technical field
The present invention relates to a kind of method for preparing polyurethane elastic body, particularly relate to a kind of method for preparing polyurethane elastic body for printing rubber roll.
Background technology
Rubber roll is the important accessory on printing press, and printing product quality is had to important impact.Polyurethane elastomer is a kind of elastomer material between rubber and plastics, has both had the snappiness of rubber, has again the high strength of plastics.Its durometer level is wide, and compression set is little, and wear resistance is outstanding.There is excellent resistance to profit simultaneously, low temperature resistant, resistance to ozone, radiation and heavy burden, the performances such as insulation, are the ideal materials of manufacturing printing rubber roll.
In printing process, due to the effect of squeegee pressure with the chemical contacting with rubber roll, rubber roll there will be the wearing and tearing of surface tissue, in industry, be referred to as surperficial glazing, the reason of its generation has two: one, it is squeegee pressure, in rubber roll use procedure, some residual impurity are deposited in the rubber surface of rubber roll, wherein some residue can water or solvent cleaning fall, but still have a small amount of impurity to remain in the micropore bottom of rubber surface, they pile up for a long time in hole, under the effect of squeegee pressure, impurity is piled more closely knit and more closely knit, finally fill up micropore, make rubber roll surface lose microporosity and glazing occurs.Two, be the migration of Plasticizer in Rubber, because the immersion of the solvent in printing-ink and clean-out system makes the softening agent in elastomeric material move out gradually, cause rubber hardening, and according to penetration theory, the space of vacating after plasticizer molecule migration is filled up by the solid molecule in ink thereupon, causes rubber roll surface knot glaze.And same because ink particle has entered into the inside of rubber surface micropore, cannot lean on clean-out system to clean, ink particle has played the effect of rubber stiffener on microcosmic, makes the hardness of rubber increase, and elasticity also can decline simultaneously.
Knot glaze is the fatal shortcoming of rubber printing rubber roll, the printing rubber roll surface area losses of glazing, it is large that hardness becomes, flexibility decrease, squeegee pressure increases, and to ink roller, regulates pressure to bring difficulty, and directly cause printing ink density not enough, dry slow, ink-water balance is unstable, increases paper waste and cleaning rubber roller difficulty.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of any softening agent and volatilizable composition of not containing, and solvent resistance is good, and rebound resilience is good, and compression set is little, is applicable to manufacture the method for synthesizing urethane elastomer of high-speed printer.
Printing rubber roll method for synthesizing urethane elastomer of the present invention, by 80～120 parts of polyester polyols, after 100～130 ℃ of vacuum outgass, with 0.1～1 part of 6～12 parts of vulcabond, catalyzer 90～110 ℃ be uniformly mixed after, the mould of 100～120 ℃ that injects prior preheating vulcanizes moulding in 16～24 hours, and wherein catalyzer is wherein one or more mixtures of dibutyl tin laurate, stannous octoate, dibutyltin diacetate, Phenylmercuric Acetate and phenylmercuric propionate.
Printing rubber roll method for synthesizing urethane elastomer of the present invention, the preparation process of wherein said polyester polyol is: hexanodioic acid and polyvalent alcohol are added in reactor and heated with the ratio of mol ratio 1.1～1.2, and logical nitrogen protection, when rising to 140 ℃, temperature reacts water outlet, control backflow tower top temperature at 100～105 ℃, then by still temperature rise to 160～180 ℃, be incubated 2～3 hours, temperature is increased to 220～230 ℃, when water outlet complete, be incubated 2 hours, then vacuumize, when every detection qualified, cooling blowing obtains polyester polyol, above-mentioned qualified index refers to acid number≤0.5mgKOH/g, hydroxyl value 59～63mgKOH/g, moisture content≤0.05%.
Printing rubber roll method for synthesizing urethane elastomer of the present invention, wherein said polyvalent alcohol is ethylene glycol, neopentyl glycol, glycerol, glycol ether, TriMethylolPropane(TMP) one or more mixtures wherein.
Printing rubber roll method for synthesizing urethane elastomer of the present invention, wherein said vulcabond is tolylene diisocyanate or diphenylmethanediisocyanate and isomer thereof.
Printing rubber roll method for synthesizing urethane elastomer of the present invention, wherein said tolylene diisocyanate be TDI-65, TDI-80 wherein one or both.
Printing rubber roll method for synthesizing urethane elastomer of the present invention, wherein said diphenylmethanediisocyanate is MDI-100.
Printing rubber roll of the present invention is that by method for synthesizing urethane elastomer difference from prior art printing rubber roll of the present invention is not with adopting any softening agent, without composition volatilizable and that extract in method for synthesizing urethane elastomer, solved the problem of the plasticizer migration occurring after rubber roll solvent contact, in alcohol and Virahol, soak 30 days, weight increase is less than 1%, at acetone, toluene, dimethylbenzene, in butanone and pimelinketone, soak 48 hours, its weight increase is less than 50%, summary display excellent solvent resistance.Small molecules glycol and the amine of having abandoned two traditional functionality expand connection agent simultaneously, the hard segment content in molecular chain structure is reduced as much as possible, thereby effectively reduced the hardness of material, and durometer level Shao Shi A5～45, do not lose mechanical property substantially.
Embodiment
Embodiment 1:
Polyester polyol A's is synthetic: press hexanodioic acid 55, ethylene glycol 46, the molar ratio of glycerol 4 adds in reactor and heats, and logical nitrogen protection, when rising to 140 ℃, temperature reacts water outlet, control backflow tower top temperature at 100～105 ℃, then by still temperature rise to 160～180 ℃, be incubated 2～3 hours, temperature is increased to 220～230 ℃, when water outlet complete, be incubated 2～3 hours, then vacuumize, within 4 hours, vacuum reaches maximum value, sampling detects acid number at regular intervals during this time, hydroxyl value and moisture are respectively once, when every detection qualified, cooling blowing obtains polyester polyol A.
Embodiment 2:
According to the preparation method of embodiment 1.
Polyester polyol B's is synthetic: press hexanodioic acid 55, and neopentyl glycol 41, the molar ratio of TriMethylolPropane(TMP) 5 obtains polyester polyol B.
Embodiment 3:
The single stage method of polyurethane elastomer is synthetic: polyester polyol A80 part is after 100～130 ℃ of vacuum outgass, with tolylene diisocyanate TDI-8012 part, 0.5 part of dibutyl tin laurate, 90～110 ℃ be uniformly mixed after, the mould of 100～120 ℃ that injects prior preheating vulcanizes the polyurethane elastomer that moulding in 16～24 hours makes, hardness 45A.
Embodiment 4:
The single stage method of polyurethane elastomer is synthetic: polyester polyol A100 part is after 100～130 ℃ of vacuum outgass, with tolylene diisocyanate TDI-6510 part, 0.8 part of stannous octoate, 90～110 ℃ be uniformly mixed after, the mould of 100～120 ℃ that injects prior preheating vulcanizes the polyurethane elastomer that moulding in 16～24 hours makes, hardness 35A.
Embodiment 5:
The single stage method of polyurethane elastomer is synthetic: polyester polyol B100 part is after 100～130 ℃ of vacuum outgass, with diphenylmethanediisocyanate MDI-1008 part, 0.1 part of dibutyltin diacetate, 90～110 ℃ be uniformly mixed after, the mould of 100～120 ℃ that injects prior preheating vulcanizes the polyurethane elastomer that moulding in 16～24 hours makes, hardness 25A.
Embodiment 6:
The single stage method of polyurethane elastomer is synthetic: polyester polyol B120 part is after 100～130 ℃ of vacuum outgass, with tolylene diisocyanate TDI-656 part, 1 part, the mixture of Phenylmercuric Acetate and phenylmercuric propionate, 90～110 ℃ be uniformly mixed after, the mould of 100～120 ℃ that injects prior preheating vulcanizes the polyurethane elastomer that moulding in 16～24 hours makes, hardness 15A.
Comparative example:
Synthetic 100 parts of the polyester polyols of hexylene glycol, the first synthetic prepolymer of tolylene diisocyanate TDI-8015 part, then add 5 parts, 30 parts, softening agent (diethyl phthalate), chainextender to solidify, goods hardness 30A.
Product properties detected result sees the following form
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection domain of the claims in the present invention book.
Claims (6)
1. a printing rubber roll method for synthesizing urethane elastomer, it is characterized in that: by 80～120 parts of polyester polyols, after 100～130 ℃ of vacuum outgass, with 0.1～1 part of 6～12 parts of vulcabond, catalyzer 90～110 ℃ be uniformly mixed after, the mould of 100～120 ℃ that injects prior preheating vulcanizes moulding in 16～24 hours, and wherein catalyzer is wherein one or more mixtures of dibutyl tin laurate, stannous octoate, dibutyltin diacetate, Phenylmercuric Acetate and phenylmercuric propionate.
2. printing rubber roll method for synthesizing urethane elastomer according to claim 1, it is characterized in that: the preparation process of described polyester polyol is: hexanodioic acid and polyvalent alcohol are added in reactor and heated with the ratio of mol ratio 1.1～1.2, and logical nitrogen protection, when rising to 140 ℃, temperature reacts water outlet, control backflow tower top temperature at 100～105 ℃, then by still temperature rise to 160～180 ℃, be incubated 2～3 hours, temperature is increased to 220～230 ℃, when water outlet complete, be incubated 2 hours, then vacuumize, when every detection qualified, cooling blowing obtains polyester polyol, above-mentioned qualified index refers to acid number≤0.5mgKOH/g, hydroxyl value 59～63mgKOH/g, moisture content≤0.05%.
3. printing rubber roll method for synthesizing urethane elastomer according to claim 2, is characterized in that: described polyvalent alcohol is ethylene glycol, neopentyl glycol, glycerol, glycol ether, TriMethylolPropane(TMP) one or more mixtures wherein.
4. printing rubber roll method for synthesizing urethane elastomer according to claim 1, is characterized in that: described vulcabond is tolylene diisocyanate or diphenylmethanediisocyanate and isomer thereof.
5. printing rubber roll method for synthesizing urethane elastomer according to claim 4, is characterized in that: described tolylene diisocyanate be TDI-65, TDI-80 wherein one or both.
6. printing rubber roll method for synthesizing urethane elastomer according to claim 4, is characterized in that: described diphenylmethanediisocyanate is MDI-100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684497.9A CN103694449A (en) | 2013-12-16 | 2013-12-16 | Synthesis method of polyurethane elastomer for printing rubber roller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310684497.9A CN103694449A (en) | 2013-12-16 | 2013-12-16 | Synthesis method of polyurethane elastomer for printing rubber roller |
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| Publication Number | Publication Date |
|---|---|
| CN103694449A true CN103694449A (en) | 2014-04-02 |
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| CN201310684497.9A Pending CN103694449A (en) | 2013-12-16 | 2013-12-16 | Synthesis method of polyurethane elastomer for printing rubber roller |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104448197A (en) * | 2014-12-16 | 2015-03-25 | 山东一诺威聚氨酯股份有限公司 | Synthetic method of heat-resisting polyurethane elastomer |
| CN105367744A (en) * | 2015-11-13 | 2016-03-02 | 成都多力多新材料有限公司 | Thermoplastic polyurethane elastomer and preparation method thereof |
| CN108501282A (en) * | 2018-01-31 | 2018-09-07 | 江苏子田机械有限公司 | A kind of production technology of the automatic rubber roller for rice huller of air pressure |
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| CN113072675A (en) * | 2021-03-11 | 2021-07-06 | 天津珂丽杰科技发展有限公司 | Novel thermosetting polyurethane elastomer for printing rubber roller and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104448197A (en) * | 2014-12-16 | 2015-03-25 | 山东一诺威聚氨酯股份有限公司 | Synthetic method of heat-resisting polyurethane elastomer |
| CN104448197B (en) * | 2014-12-16 | 2017-09-29 | 山东一诺威聚氨酯股份有限公司 | The synthetic method of the Heat-resistant Polyurethane Elastomers |
| CN105367744A (en) * | 2015-11-13 | 2016-03-02 | 成都多力多新材料有限公司 | Thermoplastic polyurethane elastomer and preparation method thereof |
| CN108501282A (en) * | 2018-01-31 | 2018-09-07 | 江苏子田机械有限公司 | A kind of production technology of the automatic rubber roller for rice huller of air pressure |
| CN109929089A (en) * | 2019-02-22 | 2019-06-25 | 黎明化工研究设计院有限责任公司 | A kind of soft high intensity solvent-proof polyurethane elastomer and its preparation method and application |
| CN109929089B (en) * | 2019-02-22 | 2021-12-28 | 黎明化工研究设计院有限责任公司 | Low-hardness high-strength solvent-resistant polyurethane elastomer and preparation method and application thereof |
| CN113072675A (en) * | 2021-03-11 | 2021-07-06 | 天津珂丽杰科技发展有限公司 | Novel thermosetting polyurethane elastomer for printing rubber roller and preparation method thereof |
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