CN112795346A - Double-component modified adhesive and preparation method thereof - Google Patents
Double-component modified adhesive and preparation method thereof Download PDFInfo
- Publication number
- CN112795346A CN112795346A CN202110012539.9A CN202110012539A CN112795346A CN 112795346 A CN112795346 A CN 112795346A CN 202110012539 A CN202110012539 A CN 202110012539A CN 112795346 A CN112795346 A CN 112795346A
- Authority
- CN
- China
- Prior art keywords
- component
- modified adhesive
- component modified
- preparation
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 86
- 239000000853 adhesive Substances 0.000 title claims abstract description 84
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 230000018044 dehydration Effects 0.000 claims abstract description 23
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 239000007822 coupling agent Substances 0.000 claims abstract description 13
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- 239000013008 thixotropic agent Substances 0.000 claims description 17
- 229920005601 base polymer Polymers 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 14
- 239000004014 plasticizer Substances 0.000 claims description 14
- 229910021485 fumed silica Inorganic materials 0.000 claims description 9
- 239000012024 dehydrating agents Substances 0.000 claims description 7
- 239000003381 stabilizer Substances 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 claims description 4
- 239000004359 castor oil Substances 0.000 claims description 4
- 235000019438 castor oil Nutrition 0.000 claims description 4
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- QSRJVOOOWGXUDY-UHFFFAOYSA-N 2-[2-[2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CCC(=O)OCCOCCOCCOC(=O)CCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 QSRJVOOOWGXUDY-UHFFFAOYSA-N 0.000 claims description 3
- 239000002250 absorbent Substances 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 3
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 claims description 3
- 239000004611 light stabiliser Substances 0.000 claims description 3
- 229940043810 zinc pyrithione Drugs 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims 1
- 238000006482 condensation reaction Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 24
- 229910000019 calcium carbonate Inorganic materials 0.000 description 12
- 239000011347 resin Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 239000004526 silane-modified polyether Substances 0.000 description 8
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 6
- 239000004721 Polyphenylene oxide Substances 0.000 description 6
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 6
- 239000000084 colloidal system Substances 0.000 description 6
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 150000004665 fatty acids Chemical class 0.000 description 6
- 229920000570 polyether Polymers 0.000 description 6
- 229920005862 polyol Polymers 0.000 description 6
- 150000003077 polyols Chemical class 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 4
- -1 phenyl alkylsulfonate Chemical class 0.000 description 4
- UVDDHYAAWVNATK-VGKOASNMSA-L (z)-4-[dibutyl-[(z)-4-oxopent-2-en-2-yl]oxystannyl]oxypent-3-en-2-one Chemical compound CC(=O)\C=C(C)/O[Sn](CCCC)(CCCC)O\C(C)=C/C(C)=O UVDDHYAAWVNATK-VGKOASNMSA-L 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- FIADVASZMLCQIF-UHFFFAOYSA-N 2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetrazatetrasilocane Chemical compound C[Si]1(C)N[Si](C)(C)N[Si](C)(C)N[Si](C)(C)N1 FIADVASZMLCQIF-UHFFFAOYSA-N 0.000 description 2
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 2
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 2
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- TUOSWEIWIXJUAU-UHFFFAOYSA-N bis(7-methyloctyl) cyclohexane-1,1-dicarboxylate Chemical compound CC(C)CCCCCCOC(=O)C1(C(=O)OCCCCCCC(C)C)CCCCC1 TUOSWEIWIXJUAU-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L magnesium chloride Substances [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 238000000518 rheometry Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 description 1
- ZQBVKYZUROTSGX-UHFFFAOYSA-N C(C)O[SiH3].NCCNCCC[Si](OC)(OC)OC Chemical compound C(C)O[SiH3].NCCNCCC[Si](OC)(OC)OC ZQBVKYZUROTSGX-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- SWBRJPYUIKWAQG-UHFFFAOYSA-N N'-[4-[ethoxy(dimethyl)silyl]butyl]ethane-1,2-diamine Chemical compound NCCNCCCC[Si](OCC)(C)C SWBRJPYUIKWAQG-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 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 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J171/00—Adhesives based on polyethers obtained by reactions forming an ether link in the main chain; Adhesives based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a preparation method of a two-component modified adhesive, which comprises the steps of dispersing and mixing a component I for 3 hours under a dehydration condition, adding a coupling agent, stirring for 20 minutes, adding a catalyst, and stirring for 20 minutes to obtain a component A; dispersing and mixing the component II uniformly, and controlling the water content of the component II to be 2000-2200 PPM to obtain a component B; uniformly mixing the component A and the component B in a volume ratio of 1:1 to obtain the double-component modified adhesive; also discloses a double-component modified adhesive. In the step 1, the invention strictly requires dehydration conditions to create a dehydration environment so as to reduce the water content of the component A to a trace amount; the water content of the component B is maintained between 2000-2200 PPM, so that when the double-component modified adhesive is used, condensation reaction can be simultaneously carried out inside and outside under the action of room-temperature moisture, the curing speed is greatly accelerated, the curing process time is shortened, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of adhesive production, in particular to a two-component modified adhesive and a preparation method thereof.
Background
The traditional adhesive generally adopts single-component modified silica gel, the packaging of the adhesive is simple and convenient, the adhesive is only suitable for an open space or a semi-open space, the adhesive cannot be suitable for a closed space, the adhesive is only directly extruded when in use, and the adhesive is in contact with moisture in the air to generate a curing reaction and is crosslinked into an elastomer, although the adhesive property of the adhesive to most bonding base materials is good, the curing reaction process is slowly carried out from the outside to the inside, the deep layer of the adhesive is difficult to cure under the general condition, and the curing depth of the adhesive is less than 6 mm. Two-component modified silica gel is provided at the present stage, the curing reaction process of the adhesive is to cure the adhesive inside and outside simultaneously, the adhesive is suitable for open or closed spaces, but the adhesive property of most adhesive base materials is poor.
Therefore, how to develop an adhesive which can realize deep rapid curing and has good bonding effect on various bonding substrates becomes a main technical problem at present.
Disclosure of Invention
In order to overcome the technical problems, the invention discloses a preparation method of a two-component modified adhesive; also discloses a two-component modified adhesive.
The technical scheme adopted by the invention for realizing the purpose is as follows:
a preparation method of a two-component modified adhesive comprises the following steps:
step 1, dispersing and mixing a component I for 3 hours under a dehydration condition, adding a coupling agent, stirring for 20 minutes, adding a catalyst, and stirring for 20 minutes to obtain a component A;
step 2, uniformly dispersing and mixing the component II, and controlling the water content of the component II to be 2000-2200 PPM to obtain a component B;
and 3, uniformly mixing the component A and the component B in a volume ratio of 1:1 to obtain the double-component modified adhesive.
The preparation method of the two-component modified adhesive comprises the steps of dehydrating under vacuum and negative pressure at 100 ℃, cooling to room temperature, adding a dehydrating agent, stirring for 20 minutes, and controlling the water content to be lower than 800 PPM.
The preparation method of the two-component modified adhesive comprises the following steps of: 25-50% of a first base polymer, 25-50% of a first plasticizer, 40-60% of a first filler, 5-10% of a first thixotropic agent and 5-10% of a stabilizer.
The preparation method of the two-component modified adhesive comprises the following steps of 1-5% of the dehydrating agent, 1-5% of the coupling agent and 0.5-1.5% of the catalyst by mass percent.
The preparation method of the two-component modified adhesive comprises the steps of preparing a first base polymer, and preparing a second base polymer, wherein the viscosity of the first base polymer is 8000-15000 mPa & s, and the viscosity of the first plasticizer is 50-500 mPa & s.
The preparation method of the two-component modified adhesive comprises the step of preparing a first thixotropic agent, wherein the specific surface area of the first thixotropic agent is 150m2The grain diameter of the first filler is 60 nm-5000 nm.
In the preparation method of the two-component modified adhesive, the stabilizer is one or more of copper zinc pyrithione, a light stabilizer 770, an ultraviolet absorbent UV-326 and an antioxidant 245.
The preparation method of the two-component modified adhesive comprises the following steps of: 25-50% of a second base polymer, 25-50% of a second plasticizer, 50-60% of a second filler and 1-5% of a second thixotropic agent.
In the preparation method of the two-component modified adhesive, the second thixotropic agent is one or more of fumed silica, polyamide wax and hydrogenated castor oil.
A two-component modified adhesive is prepared by the preparation method of the two-component modified adhesive.
The invention has the beneficial effects that: the invention has reasonable and ingenious design, the dehydration condition is strictly required in the step 1 to create a dehydration environment so as to enable the water content of the component A to be trace, and secondly, because the component B is not dehydrated under the dehydration condition in the step 2, the water content is maintained between 2000-2200 PPM, so that when the two-component modified adhesive is used, condensation reaction can be simultaneously carried out inside and outside under the action of room-temperature moisture, the curing speed is greatly accelerated, deep rapid curing is realized, the curing process time is shortened, the production efficiency is improved, the two-component modified adhesive is suitable for an open or closed space, and meanwhile, the caking property of the two-component modified adhesive can also be optimized; in addition, the coupling agent is added under the dehydration condition, so that the adhesion of the two-component modified adhesive to a bonding base material and the deep curing speed are effectively enhanced.
Detailed Description
The present invention is further illustrated by the following specific examples, which are intended to facilitate the understanding and appreciation of the technical solutions of the present invention, rather than to limit the invention thereto.
The invention provides a preparation method of a two-component modified adhesive, which comprises the following steps:
step 1, dispersing and mixing a component I for 3 hours under a dehydration condition, adding a coupling agent, stirring for 20 minutes, adding a catalyst, and stirring for 20 minutes to obtain a component A;
step 2, uniformly dispersing and mixing the component II, and controlling the water content of the component II to be 2000-2200 PPM to obtain a component B;
and 3, uniformly mixing the component A and the component B in a volume ratio of 1:1 to obtain the double-component modified adhesive.
Specifically, the dehydration condition is strictly required in the step 1 to create a dehydration environment so as to enable the water content of the component A to be trace, and then, because the component B is not dehydrated under the dehydration condition in the step 2, the water content is maintained between 2000-2200 PPM, so that when the two-component modified adhesive is used, condensation reaction can be simultaneously carried out inside and outside under the action of room-temperature moisture, the curing speed of the two-component modified adhesive is greatly accelerated, deep rapid curing is realized, the curing process time is shortened, the production efficiency is improved, the two-component modified adhesive is suitable for an open or closed space, and meanwhile, the cohesiveness of the two-component modified adhesive can also be optimized; in addition, the coupling agent is added under the dehydration condition, so that the adhesion of the two-component modified adhesive to a bonding base material and the deep curing speed are effectively enhanced.
Preferably, the dehydration condition is that the vacuum negative pressure dehydration is carried out at 100 ℃, the mixture is cooled to room temperature and then added with a dehydrating agent to be stirred for 20 minutes, and the moisture content is controlled to be lower than 800 PPM.
Preferably, the component I consists of the following components in percentage by mass: 25-50% of a first base polymer, 25-50% of a first plasticizer, 40-60% of a first filler, 5-10% of a first thixotropic agent and 5-10% of a stabilizer.
Further, the mass percentage of the dehydrating agent is 1-5%, the mass percentage of the coupling agent is 1-5%, and the mass percentage of the catalyst is 0.5-1.5%.
Specifically, the first base polymer is silane modified polyether resin, the viscosity of the first base polymer is 8000-15000 mPa · s, and the first base polymer, the second base polymer and a coupling agent are subjected to condensation reaction with moisture in the air under the action of a catalyst to remove a byproduct alcohol, and the elastic colloid is generated through curing.
Specifically, the first plasticizer is one or more of Polyether Polyol (PPG), dioctyl phthalate, diisodecyl phthalate, diisononyl cyclohexanedicarboxylate and phenyl alkylsulfonate, the viscosity of the first plasticizer is 50-500 mPa & s, and the first plasticizer adjusts the extrusion performance of the two-component modified adhesive and the hardness of the elastic colloid.
Specifically, the first filler is one or more of nano calcium carbonate, diatomite, calcined kaolin, aluminum hydroxide, titanium dioxide and carbon black, the particle size of the first filler is 60 nm-5000 nm, and the mechanical property of the elastic colloid is enhanced by the first filler.
Specifically, the first thixotropic agent is one or more of fumed silica, polyamide wax and hydrogenated castor oil, and the specific surface area of the first thixotropic agent is 150m2The first thixotropic agent adjusts the rheology of the elastic gel.
Specifically, the stabilizer is one or more of copper zinc pyrithione, a light stabilizer 770, an ultraviolet absorbent UV-326 and an antioxidant 245, and the stabilizer enhances the stability of the elastic colloid to ultraviolet rays and high and low temperatures so as to prevent the two-component modified adhesive from being damaged due to long-time exposure or high and low temperature environments.
Specifically, the dehydrating agent is one or more of hexamethyldisilazane, octamethylcyclotetrasilazane, vinyltrimethoxysilane, anhydrous calcium chloride/magnesium chloride and zeolite, and trace moisture in the component A is removed by a chemical method, so that the stability and the storage property of the product are enhanced.
Specifically, the coupling agent is one or more of gamma-aminopropyltriethoxysilane, gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (ethyloxy) silane, gamma-methacryloxypropyltrimethoxysilane, gamma-aminopropyltrimethoxysilane and gamma-mercaptopropyltrimethoxysilane, and the coupling agent enhances the deep curing speed of the two-component modified adhesive and the adhesion of the two-component modified adhesive to a bonding substrate.
Specifically, the catalyst is one or more of dibutyltin dilaurate, dibutyltin diacetate, stannous octoate and dibutyltin bis (acetyl acetonate).
Preferably, the component II consists of the following components in percentage by mass: 25-50% of a second base polymer, 25-50% of a second plasticizer, 50-60% of a second filler and 1-5% of a second thixotropic agent.
Specifically, the second base polymer is silane modified polyether resin, and the viscosity of the second base polymer is 8000-15000 mPa & s.
Specifically, the second plasticizer is one or more of Polyether Polyol (PPG), dioctyl phthalate, diisodecyl phthalate, diisononyl cyclohexanedicarboxylate and phenyl alkylsulfonate, the viscosity of the second plasticizer is 50-500 mPa & s, and the second plasticizer adjusts the extrusion performance of the two-component modified adhesive and the hardness of the elastic colloid.
Specifically, the second filler is one or more of nano calcium carbonate, diatomite, calcined kaolin, aluminum hydroxide, titanium dioxide and carbon black, the particle size of the second filler is 60 nm-5000 nm, and the mechanical property of the elastic colloid is enhanced by the second filler.
Specifically, the second thixotropic agent is one or more of fumed silica, polyamide wax and hydrogenated castor oil, and the specific surface area of the second thixotropic agent is 150m2(iv)/g, the second thixotropic agent adjusting the rheology of the elastic gel.
Specifically, in the step 3, the component A and the component B are respectively packaged by using aluminum-plastic tubes and are placed in a glue dispensing gun, the component A and the component B are simultaneously extruded in a manual or pneumatic mode, and the component A and the component B are uniformly mixed at a spiral tip of the glue dispensing gun, so that the two-component modified adhesive is obtained.
The invention also discloses a two-component modified adhesive which is prepared by the preparation method of the two-component modified adhesive.
The preparation process according to the invention is now described in detail in the following examples:
example 1: the preparation method of the two-component modified adhesive provided by the embodiment comprises the following steps:
step 1, 500g of silane modified polyether resin with the viscosity of 8000 mPas, 200g of polyether polyol PPG3000 with the viscosity of 500 mPas, and 30g of polyether polyol with the specific surface area of 150m2Vacuum stirring and dehydrating fumed silica, 400g of fatty acid treated calcium carbonate with the particle size of 60nm and 100g of calcium carbonate with the particle size of 3000 meshes at 100 ℃ for 3 hours, cooling to room temperature, adding 20g of vinyl trimethoxy silane, then vacuum stirring for 30 minutes, then adding 10g N- (beta-aminoethyl) -gamma-aminopropyl trimethyl (ethyl) oxy silane, vacuum stirring for 20 minutes, finally adding 12g of dibutyltin dilaurate, and vacuum stirring for 20 minutes to obtain a component A, wherein the water content of the component A is 700 PPM;
step 2, 500g of silane modified polyether resin with the viscosity of 8000 mPas, 200g of polyether polyol PPG3000 with the viscosity of 500 mPas, and 30g of polyether polyol with the specific surface area of 150m2In the gas phase ofSilicon, 400g of fatty acid treated calcium carbonate with the particle size of 60nm and 100g of calcium carbonate with the particle size of 3000 meshes are stirred in vacuum for 2 hours at room temperature, and the water content of the calcium carbonate is controlled to be 2000PPM, so that a component B is obtained;
and 3, uniformly mixing the component A and the component B in a volume ratio of 1:1 to obtain the double-component modified adhesive.
Adhesive performance parameters were determined for the two-component modified adhesive prepared in example 1. The specific measurement parameters are shown in table 1.
Example 2: the preparation method of the two-component modified adhesive provided by the embodiment comprises the following steps:
step 1, 500g of silane-modified polyether resin with viscosity of 12000 mPas, 100g of dioctyl phthalate with viscosity of 50 mPas and 50g of dioctyl phthalate with specific surface area of 150m2The preparation method comprises the following steps of (1) dehydrating fumed silica per gram, 500 grams of fatty acid treated calcium carbonate with the particle size of 70nm and 100 grams of calcium carbonate with the particle size of 3000 meshes under vacuum stirring at the temperature of 100 ℃ for 3 hours, cooling to room temperature, adding 20 grams of vinyl trimethoxy silane, then carrying out vacuum stirring for 30 minutes, then adding 20 grams of hexamethyldisilazane and 10 grams of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, carrying out vacuum stirring for 20 minutes, finally adding 15 grams of dibutyltin bis (acetyl acetonate), carrying out vacuum stirring for 20 minutes, and obtaining a component A, wherein the water content of the component A is 660 PPM;
step 2, 500g of silane modified polyether resin with the viscosity of 12000 mPas, 100g of dioctyl phthalate with the viscosity of 50 mPas and 50g of dioctyl phthalate with the specific surface area of 150m2Stirring 500g of fumed silica, 70 nm-sized fatty acid treated calcium carbonate and 100g of diatomite at room temperature in vacuum for 2 hours, and controlling the water content of the mixture to be 2100PPM to obtain a component B;
and 3, uniformly mixing the component A and the component B in a volume ratio of 1:1 to obtain the double-component modified adhesive.
Adhesive performance parameters were determined for the two-component modified adhesive prepared in example 2. The specific measurement parameters are shown in table 1.
Example 3: the preparation method of the two-component modified adhesive provided by the embodiment comprises the following steps:
step 1, 500g of a silane-modified polyether resin having a viscosity of 12000 mPas, 300g of a phenyl alkylsulfonate having a viscosity of 50 mPas, and 80g of a resin having a specific surface area of 150m2The preparation method comprises the following steps of (1) stirring and dehydrating 500g of fumed silica, 500g of fatty acid treated calcium carbonate with the particle size of 60nm and 300g of calcined kaolin at 100 ℃ in vacuum for 3 hours, cooling to room temperature, adding 30g of octamethylcyclotetrasilazane, stirring for 30 minutes in vacuum, then adding 10g of gamma-methacryloxypropyltrimethoxysilane and 10g of gamma-aminopropyltrimethoxysilane, stirring for 20 minutes in vacuum, and finally adding 15g of dibutyltin bis (acetyl acetonate), stirring for 20 minutes in vacuum to obtain a component A, wherein the water content of the component A is 650 PPM;
step 2, 500g of a silane-modified polyether resin having a viscosity of 12000 mPas, 300g of a phenyl alkylsulfonate having a viscosity of 50 mPas, and 80g of a resin having a specific surface area of 150m2Stirring 500g of fumed silica, 60 nm-sized fatty acid treated calcium carbonate and 300g of diatomite at room temperature in vacuum for 2 hours, and controlling the water content of 2200PPM to obtain a component B;
and 3, uniformly mixing the component A and the component B in a volume ratio of 1:1 to obtain the double-component modified adhesive.
Adhesive performance parameters were determined for the two-component modified adhesive prepared in example 3. The specific measurement parameters are shown in table 1.
TABLE 1 determination of adhesive Performance parameters
The invention has reasonable and ingenious design, the dehydration condition is strictly required in the step 1 to create a dehydration environment so as to enable the water content of the component A to be trace, and secondly, because the component B is not dehydrated under the dehydration condition in the step 2, the water content is maintained between 2000-2200 PPM, so that when the two-component modified adhesive is used, condensation reaction can be simultaneously carried out inside and outside under the action of room-temperature moisture, the curing speed is greatly accelerated, deep rapid curing is realized, the curing process time is shortened, the production efficiency is improved, the two-component modified adhesive is suitable for an open or closed space, and meanwhile, the caking property of the two-component modified adhesive can also be optimized; in addition, the coupling agent is added under the dehydration condition, so that the adhesion of the two-component modified adhesive to a bonding base material and the deep curing speed are effectively enhanced.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Those skilled in the art can make many possible variations and modifications to the invention using the above disclosed technical means and teachings, or can modify equivalent embodiments with equivalent variations, without departing from the scope of the invention. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention should be covered by the protection scope of the present invention without departing from the contents of the technical scheme of the present invention.
Claims (10)
1. A preparation method of a two-component modified adhesive is characterized by comprising the following steps:
step 1, dispersing and mixing a component I for 3 hours under a dehydration condition, adding a coupling agent, stirring for 20 minutes, adding a catalyst, and stirring for 20 minutes to obtain a component A;
step 2, uniformly dispersing and mixing the component II, and controlling the water content of the component II to be 2000-2200 PPM to obtain a component B;
and 3, uniformly mixing the component A and the component B in a volume ratio of 1:1 to obtain the double-component modified adhesive.
2. The method for preparing the two-component modified adhesive according to claim 1, wherein the dehydration condition is vacuum negative pressure dehydration at 100 ℃, then the dehydration is cooled to room temperature, and then a dehydrating agent is added to stir for 20 minutes, and the moisture content is controlled to be lower than 800 PPM.
3. The preparation method of the two-component modified adhesive according to claim 2, wherein the component I comprises the following components in percentage by mass: 25-50% of a first base polymer, 25-50% of a first plasticizer, 40-60% of a first filler, 5-10% of a first thixotropic agent and 5-10% of a stabilizer.
4. The preparation method of the two-component modified adhesive according to claim 3, wherein the weight percentage of the dehydrating agent is 1-5%, the weight percentage of the coupling agent is 1-5%, and the weight percentage of the catalyst is 0.5-1.5%.
5. The method for preparing the two-component adhesive modifier according to claim 4, wherein the viscosity of the first base polymer is 8000 to 15000mPa s, and the viscosity of the first plasticizer is 50 to 500mPa s.
6. The method for preparing the two-component modified adhesive according to claim 5, wherein the specific surface area of the first thixotropic agent is 150m2The grain diameter of the first filler is 60 nm-5000 nm.
7. The preparation method of the two-component modified adhesive as claimed in claim 6, wherein the stabilizer is one or more of copper zinc pyrithione, light stabilizer 770, ultraviolet absorbent UV-326, and antioxidant 245.
8. The preparation method of the two-component modified adhesive according to claim 2, wherein the component II comprises the following components in percentage by mass: 25-50% of a second base polymer, 25-50% of a second plasticizer, 50-60% of a second filler and 1-5% of a second thixotropic agent.
9. The method for preparing the two-component modified adhesive according to claim 8, wherein the second thixotropic agent is one or more of fumed silica, polyamide wax and hydrogenated castor oil.
10. A two-component modified adhesive characterized by being prepared by the method for preparing the two-component modified adhesive according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110012539.9A CN112795346A (en) | 2021-01-06 | 2021-01-06 | Double-component modified adhesive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110012539.9A CN112795346A (en) | 2021-01-06 | 2021-01-06 | Double-component modified adhesive and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112795346A true CN112795346A (en) | 2021-05-14 |
Family
ID=75808650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110012539.9A Pending CN112795346A (en) | 2021-01-06 | 2021-01-06 | Double-component modified adhesive and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112795346A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110951435A (en) * | 2019-12-13 | 2020-04-03 | 成都硅宝科技股份有限公司 | High-strength silane modified polyether sealant with equal proportion and preparation method thereof |
-
2021
- 2021-01-06 CN CN202110012539.9A patent/CN112795346A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110951435A (en) * | 2019-12-13 | 2020-04-03 | 成都硅宝科技股份有限公司 | High-strength silane modified polyether sealant with equal proportion and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110591638B (en) | Low-proportion bi-component dealcoholized organosilicon sealant and preparation method and application thereof | |
| CN110305621B (en) | Dealcoholized room-temperature curing organosilicon sealant and preparation method thereof | |
| CN109135660A (en) | A kind of dealcoholized type bi-component sealant and preparation method thereof | |
| CN102093720B (en) | Ketoxime type room temperature vulcanized silicone rubber with long storage period and preparation method thereof | |
| CN109880569B (en) | Epoxy resin modified MS sealant | |
| CN102086366B (en) | Environmental-protection organic silicon-modified polyether building sealant | |
| CN113185947B (en) | Mixed crosslinking system two-component hollow sealant | |
| CN113088244A (en) | Low-viscosity flowing type high-heat-conductivity flame-retardant packaging material and preparation method thereof | |
| CN112239645A (en) | Silicone adhesive with antibacterial and mildewproof effects and preparation method thereof | |
| CN107163908A (en) | One kind is used for automobile lamp and assembles sealed two-component silicone rubber sealant and preparation method thereof | |
| CN109181623B (en) | Silicone sealant for fast curing photovoltaic module and preparation method thereof | |
| CN109251711A (en) | The preparation method of silane modified polyether seal glue | |
| CN111073577B (en) | Environment-friendly MS sealant and preparation method thereof | |
| CN115029101A (en) | Environment-friendly energy-saving heat-insulating sealant and preparation method and application thereof | |
| CN113337245A (en) | Dealcoholized photovoltaic module sealant and preparation method thereof | |
| CN111534276A (en) | Low-density adhesive type flame-retardant silicone rubber and preparation method thereof | |
| CN108912334A (en) | A kind of preparation method of the hydrophobic silicone nanoparticle containing vinyl | |
| CN112795346A (en) | Double-component modified adhesive and preparation method thereof | |
| CN109777343A (en) | Cured bi-component organic silicon potting adhesive and preparation method thereof is synchronized inside and outside one kind | |
| CN110257002B (en) | Two-component silicone sealant for projection lamp | |
| CN109852338B (en) | Fluorosilicone rubber composition, method for producing the same, and sealant and coating prepared from the same | |
| CN115322554B (en) | Silane modified polyether heat conduction material and preparation method thereof | |
| CN115785893B (en) | Low-dielectric organosilicon sealant and preparation method thereof | |
| CN109337631B (en) | Preparation method of silane-terminated sealant with excellent medium resistance | |
| CN116656312A (en) | Room-temperature-curing double-component sealant for microwave oven and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210514 |