CN102898611B - Preparation method for organic silicon polyurethane adhesive - Google Patents
Preparation method for organic silicon polyurethane adhesive Download PDFInfo
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- CN102898611B CN102898611B CN201210334026.0A CN201210334026A CN102898611B CN 102898611 B CN102898611 B CN 102898611B CN 201210334026 A CN201210334026 A CN 201210334026A CN 102898611 B CN102898611 B CN 102898611B
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- 239000004814 polyurethane Substances 0.000 title claims abstract description 42
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 42
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 34
- 239000010703 silicon Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 230000001070 adhesive effect Effects 0.000 title abstract description 16
- 239000000853 adhesive Substances 0.000 title abstract description 13
- 229920000570 polyether Polymers 0.000 claims abstract description 21
- 239000003822 epoxy resin Substances 0.000 claims abstract description 19
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 19
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 229920005906 polyester polyol Polymers 0.000 claims description 9
- -1 polysiloxane Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 7
- 150000002148 esters Chemical class 0.000 claims description 7
- 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 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 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 6
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 3
- 150000002009 diols Chemical class 0.000 claims description 3
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- IIGAAOXXRKTFAM-UHFFFAOYSA-N N=C=O.N=C=O.CC1=C(C)C(C)=C(C)C(C)=C1C Chemical compound N=C=O.N=C=O.CC1=C(C)C(C)=C(C)C(C)=C1C IIGAAOXXRKTFAM-UHFFFAOYSA-N 0.000 claims description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 239000012948 isocyanate Substances 0.000 claims description 2
- 150000002513 isocyanates Chemical class 0.000 claims description 2
- HNHVTXYLRVGMHD-UHFFFAOYSA-N n-butyl isocyanate Chemical compound CCCCN=C=O HNHVTXYLRVGMHD-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 3
- 239000004721 Polyphenylene oxide Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000010358 mechanical oscillation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 229910000077 silane Inorganic materials 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- GQIUQDDJKHLHTB-UHFFFAOYSA-N trichloro(ethenyl)silane Chemical compound Cl[Si](Cl)(Cl)C=C GQIUQDDJKHLHTB-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 125000000962 organic group Chemical group 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 239000005050 vinyl trichlorosilane Substances 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- UNIYDALVXFPINL-UHFFFAOYSA-N 3-(2-methylprop-2-enoyloxy)propylsilicon Chemical compound CC(=C)C(=O)OCCC[Si] UNIYDALVXFPINL-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000004826 Synthetic adhesive Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002118 epoxides Chemical group 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- FHTQCUNSKSWOHF-UHFFFAOYSA-N ethyl carbamate;silicon Chemical compound [Si].CCOC(N)=O FHTQCUNSKSWOHF-UHFFFAOYSA-N 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a preparation method for an organic silicon polyurethane adhesive. According to the invention, polyether reacts with a substance having an isocyanate group so as to obtain organic silicon polyurethane which then reacts with an epoxy resin. The preparation method brought forward by the invention is simple and is easy to operate. The prepared organic silicon polyurethane adhesive has the advantages of excellent adhesive properties, good flexibility, low temperature resistance, shock resistance and resistance to an ambient temperature of 80 DEG C and can be used for bonding of industrial components undergoing mechanical oscillation and generating heat, e.g., a machine tool, a building and communal facilities in an earthquake high-prevalence area, a hot-working workshop, etc. The organic silicon polyurethane adhesive is extensively used in the industrial field.
Description
Technical field
The invention belongs to adhesive field, be specifically related to a kind of preparation method and the method products therefrom of the tackiness agent based on polyether derivative.
Background technology
Urethane is the abbreviation of carbamate, has group-NHCOOR.Polyurethane adhesive is a current just important component part in the urethane resin of fast development, has excellent performance, be all widely used in many aspects, and be one of important kind in eight large synthetic adhesives.It is applicable to various structural bonding fields, and possesses excellent flexible nature.
Adhesive for polyurethane has the performance of many uniquenesses, and its snappiness is good, low temperature resistant, shock resistance.But thermotolerance is still not ideal enough.Organic silicon modified polyurethane, can improve the thermotolerance of adhesive for polyurethane.If carry out modified organic silicon urethane with resin again, not only can improve the water tolerance of urethane, but also can improve the rigidity of urethane, make polyurethane products not only there is higher cohesive strength cohesive strength but also there is higher thermotolerance, and do not lose its snappiness.
Epoxy resin is in molecule, to contain two or more epoxide groups and the lower macromolecular compound of molecular weight.The three-dimensional arrangement that silicone resin is main chain by siloxane bond forms, and at high temperature further condensation becomes highly cross-linked hard and crisp resin.The adhesive for polyurethane of organosilicon epoxy resin modification, its cohesive strength can improve 50%, not only water-fast, and resistance to solvent, and working temperature also can improve 40% left and right, can bonding range of application wider.Not only at civilian goods, and at boats and ships, military products, can be applied.
The current motorway of China, railway, get down the highway develop rapidly, thereby it is increasing to be rich in the high-intensity structure glue of viscoelasticity, domestic existing epoxy modified polyurethane tackiness agent, its adhesive property still can, but temperature tolerance is inadequate; Organic silicon modified polyurethane, thermotolerance still can, but other performances are still undesirable.If high strength, thermotolerance, cohesiveness three are organically combined, the development to polyurethane products, must expand its application, brings useful effect.For example loudspeaker glue, should have vibration resistance, has again certain bonding strength, and overcomes the high temperature because constantly vibrations cause; In earthquake hotspot, using epoxy modified silicone urethane is sqtructural adhesive, and anti-vibration ability is strong, the earthquake heat that ability is certain again; In hot-work workshop, the demand of the aspects such as the lathe that contains vibrations, equipment.
Summary of the invention
For the deficiencies in the prior art part, the object of the invention is to propose a kind of preparation method of organic silicon polyurethane tackiness agent.
Another object of the present invention is the machine silicon polyurethane tackiness agent that proposition is obtained by described preparation method.
For realizing the object of the invention technical scheme, be:
A preparation method for organic silicon polyurethane tackiness agent, it is by polyethers and material (claiming again isocyanic ester) and the organosilicon reaction with isocyanate groups, obtains organic silicon modified polyurethane, then reacts with epoxy resin and obtains.
Wherein, described polyethers is to be made by polyester polyols dehydration of alcohols 1.5-2.5h, and described polyester polyol is polyester diol.Described polyester diol is that aliphatic dihydroxy alcohol and aliphatic dibasic acid polycondensation obtain.For example, a kind of polycondensation gained in a kind of and sebacic acid in ethylene glycol, butyleneglycol, butynediol, glycol ether, a contracting propylene glycol, hexanodioic acid, fumaric acid, toxilic acid.
Wherein, described polyethers be by polyester polyol in vacuum tightness-0.08 to-0.1MPa, 110-130 ℃ of Dehydration obtains.
Wherein, described polyethers is to join at normal temperatures in the material with isocyanate groups, is then warming up to 80-100 ℃, at this temperature, reacts, and adds organosilicon in reaction process, continues reaction and obtains organic silicon modified polyurethane.
Wherein, described polyethers is 2.5-3.5h with the time with the substance reaction of isocyanate groups, and polyethers is respectively 200-300 part and 80-100 part with the weight part that the material with isocyanate groups adds.
Wherein, described organosilicon is to add when reaction is carried out 0.5-1.5 hour, and the weight part adding is 10-15 part.
Organosilicon, be silicoorganic compound, refer to that containing Si-O key and having an organic group at least is the compound being directly connected with Siliciumatom, also often makes the compound that organic group is connected with Siliciumatom also be used as silicoorganic compound by oxygen, sulphur, nitrogen etc. those traditionally.The organosilicon using in reaction of the present invention is polysiloxane or silane coupling agent, for example be selected from a kind of in lower group: vinyl trichloro silane (vinyltrichlorosilane, A-150 silane coupling agent), vinyltriethoxysilane (A-151 silane coupling agent), methacryloxypropyl silane (Silane coupling reagent KH-570), vinyltrimethoxy silane, vinyl three ('beta '-methoxy oxyethyl group) silane, γ-r-chloropropyl trimethoxyl silane, γ-glycidyl ether oxygen propyl trimethoxy silicane (silane coupling agent KH-560).
The material wherein, with isocyanate groups is selected from a kind of in tolylene diisocyanate (TDI), diphenylmethanediisocyanate (MDI), isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HDI), polymethylene polyphenyl isocyanic acid (PAPI), n-butyl isocyanate, tertiary butyl isocyanic ester, the chloro-4-aminomethyl phenyl of 3-isocyanic ester, p-trifluoromethyl phenyl isocyanic ester and a tetramethylxylene diisocyanate.
Wherein, the condition that described organic silicon modified polyurethane reacts with epoxy resin is to react 1.5-2.5h at 70-90 ℃.
Wherein, described organic silicon modified polyurethane reacts with epoxy resin, is that the epoxy resin of 5-10 weight part is joined in organic silicon modified polyurethane and reacted.
Reaction in final product-control of NCO content controlled by whole reaction, polyethers, organosilicon, epoxy all can with-this radical reaction of NCO.By the proportioning of reaction raw materials, in control product-NCO content 8-12%.
Wherein, described epoxy resin is bisphenol A epoxide resin.
The organic silicon polyurethane tackiness agent that the preparation method that the present invention proposes makes.
Beneficial effect of the present invention is:
Preparation method's technique that the present invention proposes is simple, easy handling.Not only adhesive property is excellent, snappiness is good, low temperature resistant, shock resistance for resulting organic silicon polyurethane tackiness agent, and envrionment temperature that can resistance to 80 ℃, can be used for there are mechanical vibration, produce the bonding of the industrial part of heat, as lathe, in building and communal facility, the hot-work workshop etc. of earthquake hotspot.Be applicable to industrial circle widely.
Accompanying drawing explanation
Fig. 1 is the process flow sheet that the present invention prepares organic silicon polyurethane tackiness agent.
Embodiment
Now with following most preferred embodiment, the present invention is described, but is not used for limiting the scope of the invention.
In embodiment, TDI used or MDI, IPDI are purchased from Nippon Polyurethane Industry Co., Ltd., and model is TDI, MDI and IPDI, polyester polyol is purchased from LG-DOW company, model is 3050,3010,210,2070, and epoxy resin is purchased from San Mu company, and model is bisphenol A epoxide resin E-54.Silane coupling agent is purchased from the military organosilicon novel material company limited greatly in Hubei.
Embodiment 1:
According to the flow process of Fig. 1.
Polyester polyol (model 3010) is at-0.09MPa, 120 ℃, and dehydration 2h, obtains polyethers.Polyethers is cooled to normal temperature.
The TDI that adds 90kg in reactor, then adds 250kg polyethers, opens and stirs, and is warming up to 90 ℃, and reaction 1h, adds 10kg organosilicon Silane coupling reagent KH-570, at 90 ℃ of temperature, reacts 2h, obtains organic silicon modified polyurethane;
7kg epoxy resin is joined in organic silicon modified polyurethane, open and stir, be heated to 80-100 ℃, reaction 2h.Cooling colourless organic silicon polyurethane adhesive products.According to standard HG/T 2409-1992, carry out the mensuration of isocyanate group-NCO content in product.In product-NCO content is 10%.
Embodiment 2:
Polyester polyol (model 210) is at-0.08MPa, 110 ℃, and dehydration 2.5h, obtains polyethers.Polyethers is cooled to normal temperature, is 25 ℃;
The MDI that adds 80kg in reactor, then adds the polyethers of 200kg, opens and stirs, and is warming up to 80 ℃, and reaction 0.8h, adds 15kg silane coupling agent KH-560, continues reaction 1.7h under said temperature, obtains organic silicon modified polyurethane;
10kg epoxy resin is joined in organic silicon modified polyurethane, open and stir, be heated to 90 ℃, reaction 1.5h.Cooling faint yellow organic silicon polyurethane adhesive products.In product-NCO content is 8%.
Embodiment 3:
Polyester polyol (model 210) is at-0.1MPa, 130 ℃, and dehydration 1.5h, obtains polyethers.Polyethers is cooled to normal temperature, is 26 ℃;
The IPDI that adds 85kg in reactor, then adds 220kg polyethers, opens and stirs, and is warming up to 80 ℃, and reaction 1.5h, adds 12kg organosilicon Silane coupling reagent KH-570, under said temperature, reacts 2h,, obtain organic silicon modified polyurethane;
12kg epoxy resin is joined in organic silicon modified polyurethane, be heated to 70 ℃, reaction 2.5h.Cooling colourless organic silicon polyurethane adhesive products.In product-NCO content is 12%.
Experimental example
Embodiment of the present invention gained organic silicon polyurethane tackiness agent, directly bonding during use.
Bonding force test adopts GB as follows:
GB/T 6329: the measuring method of sizing agent opposite joint tensile strength,
GB/T 7124: sizing agent tensile shear strength measuring method,
GB/T 6328: sizing agent shearing impact Strength Testing Methods.
Test result is in Table 1.
The test of table 1 embodiment end properties
Above 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 modification and improvement that the common engineering technical personnel in this area make technical scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.
Claims (3)
1. the preparation method of an organic silicon polyurethane tackiness agent, it is characterized in that, that polyethers is joined in the material with isocyanate groups at normal temperatures, then being warming up to 70-90 ℃ reacts, the time of reaction is 2.5-3.5h, and polyethers is respectively 200-300 part and 80-100 part with the weight part that the material with isocyanate groups adds, and adds organosilicon when reaction is carried out 0.5-1.5 hour, the weight part adding is 10-15 part, and described organosilicon is polysiloxane or silane coupling agent; Continue reaction and obtain organic silicon modified polyurethane, then react with epoxy resin and obtain;
Described organic silicon modified polyurethane reacts with epoxy resin, is that the epoxy resin of 5-10 weight part is joined in organic silicon modified polyurethane, reacts 1.5-2.5h at 80-100 ℃; Described epoxy resin is bisphenol A epoxide resin;
Wherein, described polyethers be by polyester polyol in vacuum tightness-0.08 to-0.1MPa, 110-130 ℃ of dehydration 1.5-2.5h makes, described polyester polyol is polyester diol or polyester trivalent alcohol or its mixture.
2. preparation method as claimed in claim 1, it is characterized in that, described in there is isocyanate groups material be selected from a kind of in tolylene diisocyanate, diphenylmethanediisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, polymethylene multi-phenenyl isocyanate, n-butyl isocyanate, tertiary butyl isocyanic ester, the chloro-4-aminomethyl phenyl of 3-isocyanic ester, p-trifluoromethyl phenyl isocyanic ester and a tetramethylxylene diisocyanate.
3. the organic silicon polyurethane tackiness agent that the preparation method described in claim 1 or 2 makes.
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| CN105238326A (en) * | 2015-09-21 | 2016-01-13 | 太仓市金锚新材料科技有限公司 | Polyurethane adhesive and preparation method thereof |
| CN107151307A (en) * | 2017-04-24 | 2017-09-12 | 苏州金枪新材料股份有限公司 | A kind of organic silicon modified polyurethane sealant |
| CN109868104B (en) * | 2019-02-28 | 2021-06-29 | 苏州金枪新材料股份有限公司 | Flexible epoxy adhesive and preparation method thereof |
| CN112358842A (en) * | 2020-09-29 | 2021-02-12 | 无锡市佳盛高新改性材料有限公司 | Preparation method of organic silicon polyurethane adhesive |
| CN113583616A (en) * | 2021-06-28 | 2021-11-02 | 美国Wefv技术控股集团有限公司 | Adhesive with high polymerization, strong adhesion and good weather resistance and preparation method thereof |
| CN113845623A (en) * | 2021-09-28 | 2021-12-28 | 泉州师范学院 | Low-temperature-resistant flexible polyurethane photosensitive resin composition containing silicon chain for photocuring 3D printing and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092547A (en) * | 2007-07-17 | 2007-12-26 | 金坛市胶粘剂厂 | Dedicated adhesive for bagging liquid pesticide |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092547A (en) * | 2007-07-17 | 2007-12-26 | 金坛市胶粘剂厂 | Dedicated adhesive for bagging liquid pesticide |
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