CN115466595B - Bi-component modified silicone rubber adhesive for bonding automobile cabin door, preparation method and bonding process thereof - Google Patents
Bi-component modified silicone rubber adhesive for bonding automobile cabin door, preparation method and bonding process thereof Download PDFInfo
- Publication number
- CN115466595B CN115466595B CN202211383084.2A CN202211383084A CN115466595B CN 115466595 B CN115466595 B CN 115466595B CN 202211383084 A CN202211383084 A CN 202211383084A CN 115466595 B CN115466595 B CN 115466595B
- Authority
- CN
- China
- Prior art keywords
- parts
- component
- silicone rubber
- bonding
- modified silicone
- 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.)
- Active
Links
- 239000000853 adhesive Substances 0.000 title claims abstract description 39
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 39
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 36
- 239000004945 silicone rubber Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title description 8
- 239000004432 silane-modified polyurethane Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004014 plasticizer Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 14
- -1 polysiloxane Polymers 0.000 claims abstract description 12
- 239000012459 cleaning agent Substances 0.000 claims abstract description 10
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 9
- 239000002318 adhesion promoter Substances 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims abstract description 8
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 8
- 239000000049 pigment Substances 0.000 claims abstract description 8
- 239000002516 radical scavenger Substances 0.000 claims abstract description 8
- 239000013008 thixotropic agent Substances 0.000 claims abstract description 8
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 7
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 27
- 239000002994 raw material Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 14
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical group CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 230000003213 activating effect Effects 0.000 claims description 7
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000292 calcium oxide Substances 0.000 claims description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000012190 activator Substances 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical group CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 3
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 238000010009 beating Methods 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- JJQZDUKDJDQPMQ-UHFFFAOYSA-N dimethoxy(dimethyl)silane Chemical compound CO[Si](C)(C)OC JJQZDUKDJDQPMQ-UHFFFAOYSA-N 0.000 claims description 3
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 3
- QARBMVPHQWIHKH-UHFFFAOYSA-N methanesulfonyl chloride Chemical compound CS(Cl)(=O)=O QARBMVPHQWIHKH-UHFFFAOYSA-N 0.000 claims description 3
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 claims description 3
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 claims description 3
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 claims description 3
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 claims description 3
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 claims description 3
- MTEZSDOQASFMDI-UHFFFAOYSA-N 1-trimethoxysilylpropan-1-ol Chemical compound CCC(O)[Si](OC)(OC)OC MTEZSDOQASFMDI-UHFFFAOYSA-N 0.000 claims description 2
- 125000003158 alcohol group Chemical group 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims description 2
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical group [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 abstract description 2
- 238000004070 electrodeposition Methods 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 230000004913 activation Effects 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 10
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 8
- 238000010422 painting Methods 0.000 description 8
- 238000001962 electrophoresis Methods 0.000 description 7
- 239000000565 sealant Substances 0.000 description 7
- 238000005303 weighing Methods 0.000 description 7
- 238000011056 performance test Methods 0.000 description 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- IYAZLDLPUNDVAG-UHFFFAOYSA-N 2-(benzotriazol-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 IYAZLDLPUNDVAG-UHFFFAOYSA-N 0.000 description 2
- UWSMKYBKUPAEJQ-UHFFFAOYSA-N 5-Chloro-2-(3,5-di-tert-butyl-2-hydroxyphenyl)-2H-benzotriazole Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O UWSMKYBKUPAEJQ-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- OCWYEMOEOGEQAN-UHFFFAOYSA-N bumetrizole Chemical compound CC(C)(C)C1=CC(C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O OCWYEMOEOGEQAN-UHFFFAOYSA-N 0.000 description 2
- 239000004587 polysulfide sealant Substances 0.000 description 2
- 239000004588 polyurethane sealant Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- VGBAECKRTWHKHC-UHFFFAOYSA-N cyclopenta-1,3-diene;1-ethenylcyclopenta-1,3-diene;iron(2+) Chemical compound [Fe+2].C=1C=C[CH-]C=1.[CH2-]C=C1C=CC=C1 VGBAECKRTWHKHC-UHFFFAOYSA-N 0.000 description 1
- QETISSZVCNFQBN-UHFFFAOYSA-N cyclopentane;cyclopentylmethanol;iron Chemical compound [Fe].[CH]1[CH][CH][CH][CH]1.OC[C]1[CH][CH][CH][CH]1 QETISSZVCNFQBN-UHFFFAOYSA-N 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000001038 titanium pigment Substances 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 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
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
-
- 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
- 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
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a bi-component modified silicone rubber adhesive for bonding automobile cabin doors and a bonding process thereof. The modified silicone rubber consists of the following components: polysiloxane, silane modified polyurethane, plasticizer, filler, pigment, thixotropic agent, ultraviolet absorber, heat stabilizer, cross-linking agent, water scavenger, adhesion promoter and catalyst; the bonding process adopts a surfactant and a cleaning agent to perform activation cleaning, and then uses non-woven fabrics to wipe for gluing. According to the invention, the common silicone rubber is modified by adding the silane modified polyurethane, and the obtained modified silicone rubber has extremely low TVOC content, is ecological and environment-friendly, realizes quick bonding, and has good flexibility, cohesiveness, high temperature resistance and electrocoating performance. The adhesive has firm adhesion to steel, aluminum, glass, plastic, ceramic and other materials, and may be used widely in automobile, high-speed train, mechanical equipment and other fields.
Description
Technical Field
The invention belongs to the technical field of silicone rubber adhesives, and particularly relates to a bi-component modified silicone rubber adhesive for bonding automobile cabin doors, a preparation method thereof and a bonding process.
Background
The traditional welding method is adopted for connecting the automobile skin and the framework, and welding spots appear, so that the automobile skin and the framework are polished anyway, and the automobile skin is coated with putty in batches, so that the appearance is uneven, and the appearance is influenced. In addition, as the weight of automobiles has been reduced, aluminum materials and light materials have been used in large quantities to replace steel materials, and welding of steel materials and aluminum materials has become a difficult problem, so that hatch adhesive has grown with the success of inoculation.
After the cabin door is bonded, the cabin door needs to be initially fixed within 1 hour and needs to be trimmed; after 2 hours, the adhesive has initial adhesion and needs cohesive failure; the single-component glue is moisture-absorbing and curing, is slow to cure, cannot meet the bonding requirement of the cabin door, and can meet the use requirement only by selecting the double-component glue. At present, the two-component adhesive comprises the following materials: polysulfide sealants, epoxy sealants, acrylic sealants, polyurethane sealants, MS (SPU) sealants, and silicone rubber sealants. From the experimental results, the polysulfide sealant and the acrylic sealant do not meet the environmental protection requirement; the epoxy sealant has poor toughness and poor peel strength, and does not meet the requirement of the bonding toughness of the cabin door; the initial adhesion of the polyurethane sealant is poor, cohesive failure can not be achieved, and subsequent process construction can not be performed; MS (SPU) sealant has excellent performance after bonding, but has poor electrophoresis performance; after the silicone rubber is bonded, various performances are excellent, but shrinkage cavity phenomenon exists after the paint, and the strength is not high.
Therefore, it is necessary to develop a novel silicone rubber adhesive for bonding automobile doors, which has no shrinkage cavity and high strength.
Disclosure of Invention
The invention aims to provide a two-component modified silicone rubber adhesive for bonding automobile cabin doors, and simultaneously provides a preparation method thereof as a second invention aim of the invention, and a process method for bonding automobile cabin doors by using the modified silicone rubber is a third invention aim of the invention.
In order to achieve the above object, the present invention adopts the following technical scheme:
the bi-component modified silicone rubber adhesive for bonding the automobile cabin door is prepared from two components A and B, wherein the component A consists of the following raw materials in parts by weight:
polysiloxane resin: 30-55 parts of a base material,
silane modified polyurethane: 3-20 parts of a base material, wherein,
and (3) a plasticizer: 3-20 parts of a base material, wherein,
and (3) filling: 25-40 parts of a compound containing,
heat stabilizer: 0.1-2 parts of a compound,
ultraviolet absorber: 0.1-2 parts;
the component B consists of the following raw materials in parts by weight:
crosslinking agent: 5-10 parts of a compound containing, by weight,
thixotropic agent: 1-2 parts of a compound, wherein,
and (3) pigment: 1-2 parts of a compound, wherein,
water scavenger: 0.1-1 part of the total weight of the components,
adhesion promoters: 0.1-1 part of the total weight of the components,
catalyst: 0.1-1 part.
Preferably, in the component A, the polysiloxane is alpha, omega-dihydroxypolysiloxane, and the silane modified polyurethane is T-920R jm102 silane modified polyurethane.
Further preferably, in the component a, the plasticizer is one or a mixture of two of diisodecyl phthalate (DIDP) or diisononyl phthalate (DINP); the filler is one or a mixture of two of calcium carbonate and calcium oxide.
Further preferably, in the component a, the heat stabilizer is a ferrocene-based heat stabilizer, preferably acetyl ferrocene, vinyl ferrocene, ethynyl ferrocene, ferrocenyl methanol; the anti-ultraviolet absorbent is benzotriazole ultraviolet absorbent, preferably Tinuvin326, tinuvin327 and Tinuvin329.
Preferably, in the component B, the cross-linking agent is one or more than two of tetraethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, dimethyldimethoxysilane or propyltrimethoxysilane; the thixotropic agent is silicon dioxide or clay; the pigment is carbon black or titanium dioxide.
Further preferably, in the component B, the water scavenger is calcium oxide or vinyl trimethoxy silane, the adhesion promoter is one or more than two of gamma-aminopropyl triethoxy silane, gamma-glycidol ether oxypropyl trimethoxy silane or N- (beta-aminoethyl) -gamma-aminopropyl trimethoxy silane, and the catalyst is dibutyl tin dilaurate or dibutyl tin diacetate.
Preferably, the preparation method of the bi-component modified silicone rubber adhesive for bonding the automobile cabin door comprises the following steps:
(1) Heating the raw materials of the component A to 50-100 ℃ under vacuum, and stirring and mixing at a stirring speed of 500-800r/min for 1-3h to obtain the component A;
(2) Taking the raw materials of the component B, stirring and mixing at the speed of 500-800r/min under vacuum condition for 1-3h to obtain the component B;
(3) And (2) mixing the A, B components according to the mass ratio of (10-15) to 1 to obtain the double-component modified silicone rubber adhesive.
The invention also discloses an automobile cabin door bonding process, which comprises the following steps:
1) Mixing the activator with deionized water, and spraying on the metal surface of the automobile cabin door for 3-5min;
2) Cleaning with a cleaning agent, wiping with a non-woven fabric, and beating the adhesive after 3-5min, wherein the adhesive is the bi-component modified silicone rubber adhesive.
Preferably, the activator is one or more than two of methylsulfonyl chloride, sulfonyl chloride and phosphoric acid; the cleaning agent is an alcohol solution; the mass and dosage ratio of the activator, the deionized water and the cleaning agent is as follows: an activating agent: 1-20 parts of deionized water: 100 parts of cleaning agent: 200-400 parts.
Compared with the prior art, the invention has the beneficial effects that:
1. compared with the common silicone rubber, the two-component modified silicone rubber has extremely low TVOC content, is ecological and environment-friendly, can realize quick bonding, has good flexibility, cohesiveness, high temperature resistance and electrophoretic painting performance, and is a practical ideal adhesive for bonding automobile cabin doors by controlling the technical parameters of the types and the contents of polysiloxane and silane modified polyurethane, the types and the contents of plasticizer, the types and the contents of filler, the types and the contents of activating agents and the like;
2. the invention adopts diisodecyl phthalate (DIDP) or diisononyl phthalate (DINP) which does not contain silicone oil, so as to successfully solve the shrinkage cavity phenomenon after the common silicone rubber is painted;
3. the activated cleaning agent can be suitable for surface treatment of any metal material before gluing, ensures that an automobile cabin door is easier to combine with the adhesive after the surface treatment, can be suitable for firmly bonding materials such as steel, aluminum, glass, plastic, ceramic and the like, is widely used in the fields of automobile vehicles, high-speed trains, mechanical equipment and the like, and has simple and general bonding process.
Detailed description of the preferred embodiments
The invention is further illustrated in connection with the following specific examples, but the scope of the invention is not limited to the examples, but the scope of the invention is set forth in the claims.
It should be noted that the components or the parts of the raw materials in the invention are all calculated by mass parts.
Example 1:
the bi-component modified silicone rubber adhesive for bonding the automobile cabin door comprises a component A and a component B, wherein the component A comprises the following components: 30 parts of alpha, omega-dihydroxypolysiloxane, 3 parts of T-920R jm102 silane modified polyurethane, 3 parts of diisodecyl phthalate (DIDP) (plasticizer), 25 parts of calcium carbonate (filler), 0.1 part of acetyl ferrocene (heat stabilizer) and 0.1 part of Germany Basoff Tinuvin326 (anti-ultraviolet absorber); and the component B comprises the following components: 5 parts of tetraethoxysilane (crosslinking agent), 1 part of silicon dioxide (thixotropic agent), 1 part of carbon black (pigment), 0.1 part of calcium oxide (water scavenger), 0.1 part of gamma-aminopropyl triethoxysilane (adhesion promoter) and 0.1 part of dibutyltin dilaurate (catalyst).
Preparing a component A: weighing the raw materials according to the composition of the component A, placing the raw materials into a stirring kettle, heating to 50 ℃, starting stirring under a vacuum condition, wherein the stirring speed is 500r/min, the stirring time is 1h, dehydrating, and cooling to room temperature to obtain the composite material.
And (3) preparing a component B: weighing the raw materials according to the composition of the component B, mixing under vacuum, starting stirring at a stirring speed of 500r/min for 1h to obtain the final product. And (3) compounding the component A and the component B according to the mass ratio of 10:1 to obtain the modified silicone rubber adhesive.
The specific steps of activating and cleaning are as follows: firstly, 1 part of methylsulfonyl chloride and 100 parts of deionized water are weighed and uniformly mixed, a non-woven fabric is used for wiping the mixture on the metal surface, after 3 minutes, 200 parts of alcohol solution is used for cleaning, then the non-woven fabric is used for wiping, after 3 minutes, the mixture is glued.
Example 2:
the bi-component modified silicone rubber adhesive for bonding the automobile cabin door comprises a component A and a component B, wherein the component A comprises the following components: 40 parts of alpha, omega-dihydroxypolysiloxane, 10 parts of T-920R jm102 silane modified polyurethane, 10 parts of diisononyl phthalate (DINP) (plasticizer), 32 parts of calcium oxide (filler), 1 part of vinylferrocene (heat stabilizer), and 1 part of Pasteur Tinuvin327 (anti-ultraviolet absorber) in Germany; and the component B comprises the following components: 3 parts of methyltrimethoxysilane, 4 parts of methyltriethoxysilane (cross-linking agent), 1.5 parts of clay (thixotropic agent), 1.5 parts of titanium pigment (pigment), 0.5 part of vinyltrimethoxysilane (water scavenger), 0.5 part of gamma-glycidoxypropyl trimethoxysilane (adhesion promoter) and 0.5 part of dibutyltin diacetate (catalyst).
Preparing a component A: weighing the raw materials according to the composition of the component A, placing the raw materials into a stirring kettle, heating to 75 ℃, starting stirring under vacuum condition, wherein the stirring speed is 650r/min, the stirring time is 2h, dehydrating, and cooling to room temperature to obtain the product.
And (3) preparing a component B: weighing the raw materials according to the composition of the component B, mixing under vacuum, starting stirring, wherein the stirring speed is 650r/min, and the stirring time is 2 h. And (3) compounding the component A and the component B according to the mass ratio of 12:1 to obtain the modified silicone rubber adhesive.
The specific steps of activating and cleaning are as follows: firstly, 10 parts of sulfonyl chloride and 100 parts of deionized water are weighed and uniformly mixed, a non-woven fabric is used for wiping the mixture on the metal surface, after 4 minutes, 300 parts of alcohol solution is used for cleaning, then the non-woven fabric is used for wiping, after 4 minutes, the mixture is glued.
Example 3:
the bi-component modified silicone rubber adhesive for bonding the automobile cabin door comprises a component A and a component B, wherein the component A comprises the following components: 55 parts of alpha, omega-dihydroxypolysiloxane, 20 parts of T-920R jm102 silane modified polyurethane, 20 parts of diisodecyl phthalate (DIDP) (plasticizer), 40 parts of calcium carbonate (filler), 2 parts of ethynyl ferrocene (heat stabilizer), and 2 parts of Pasteur Tinuvin329 (anti-ultraviolet absorber); and the component B comprises the following components: 5 parts of dimethyl dimethoxy silane, 5 parts of propyl trimethoxy silane (cross-linking agent), 2 parts of silicon dioxide (thixotropic agent), 2 parts of carbon black (pigment), 1 part of calcium oxide (water scavenger), 1 part of N- (beta-aminoethyl) -gamma-aminopropyl trimethoxy silane (adhesion promoter) and 1 part of dibutyl tin dilaurate (catalyst).
Preparing a component A: weighing the raw materials according to the composition of the component A, placing the raw materials into a stirring kettle, heating to 100 ℃, starting stirring under vacuum condition, wherein the stirring speed is 800r/min, the stirring time is 3h, dehydrating, and cooling to room temperature to obtain the product.
And (3) preparing a component B: weighing the raw materials according to the composition of the component B, mixing under vacuum, starting stirring at a stirring speed of 800r/min for 3 hours to obtain the product. And (3) compounding the component A and the component B according to the mass ratio of 15:1 to obtain the modified silicone rubber adhesive.
The specific steps of activating and cleaning are as follows: firstly, weighing 20 parts of phosphoric acid and 100 parts of deionized water, uniformly mixing, wiping the mixture on a metal surface by using a non-woven fabric, cleaning the metal surface by using 400 parts of alcohol solution after 5 minutes, wiping the metal surface by using the non-woven fabric, and beating the glue after 5 minutes.
Comparative example 1:
the adhesive component and the preparation method of this example are different from those of example 1 in that T-920R jm102 silane modified polyurethane is not added to the A component.
The remainder was the same as in example 1.
Comparative example 2:
the adhesive component and the preparation method of this example are different from those of example 1 in that the plasticizer used in the a component is methyl silicone oil.
The remainder was the same as in example 1.
Comparative example 3:
the adhesive component and the preparation method of the present example are different from those of example 1 in that the T-920R jm102 silane modified polyurethane is not added to the A component; the plasticizer is methyl silicone oil.
The remainder was the same as in example 1.
In other embodiments, when the silicone rubber adhesive of the present invention is prepared, in the step (1), the heating temperature may be selected within a range of 50-100 ℃, and in the step (1) and the step (2), the stirring speed is 500-800r/min, and the stirring time is 1-3 h.
Performance testing
The modified silicone rubber adhesives prepared in examples 1 to 3 and comparative examples 1 to 3 were tested for initial setting time, elongation, hardness, shear strength, electrophoresis performance, and painting performance, respectively. The initial fixing time testing method is that the adhesive is primarily cured and fixed, and is not sticky; the extensibility performance test is according to GB/T528 standard; the hardness performance test is according to GB/T531.1; the shear strength performance test is according to GB/T7124; the electrophoresis performance test method is that the adhesive is not cracked, differentiated and changed at 200 ℃ for 50 min; the paint performance test method is to observe whether shrinkage cavity exists after painting.
The test results are shown in Table 1 below.
Table 1 statistics table for various performance tests of modified silicone rubber adhesives
| Initial setting time (min) | Elongation (%) | Hardness (Shore A) | Shear strength (MPa) | Electrophoresis performance (200 ℃ 50 min) | Painting properties | |
| Comparative example 1 | 30 | 150 | 35 | 1.6 | Is bad | No shrinkage cavity |
| Comparative example 2 | 24 | 160 | 36 | 1.7 | Good quality | With shrinkage cavities |
| Comparative example 3 | 30 | 135 | 33 | 1.5 | Is bad | With shrinkage cavities |
| Example 1 | 22 | 180 | 38 | 1.8 | Good quality | No shrinkage cavity |
| Example 2 | 25 | 220 | 42 | 2.2 | Good quality | No shrinkage cavity |
| Example 3 | 27 | 250 | 48 | 2.5 | Good quality | No shrinkage cavity |
From the test results, examples 1, 2 and 3 all have good initial set time, elongation, hardness and shear strength. In addition, since silane-modified polyurethane was added in each of examples 1, 2 and 3, the electrophoresis performance was good at 200℃for 50 min. Second, since the plasticizer used in examples 1, 2 and 3 is diisodecyl phthalate (DIDP) or diisononyl phthalate (DINP) containing no silicone oil component, it has good painting properties and no shrinkage after painting. In comparative example 1, the electrophoresis performance was poor because silane-modified polyurethane was not added. In comparative example 2, since the plasticizer used was methyl silicone oil, shrinkage after painting was caused. In comparative example 3, silane-modified polyurethane was not added, and the plasticizer used was methyl silicone oil, resulting in poor electrophoresis performance and shrinkage after painting. The comparison test results show that the modified silicone rubber obtained by modifying the common silicone rubber by adding the silane modified polyurethane can realize quick bonding and has good flexibility, cohesiveness, high temperature resistance and electrocoating performance. In addition, the common silicone rubber plasticizer contains methyl silicone oil or dimethyl silicone oil, and the paint can be subjected to shrinkage cavity phenomenon.
Claims (3)
1. The double-component modified silicone rubber adhesive for bonding the automobile cabin door is prepared from two components A and B, and is characterized in that the component A consists of the following raw materials in parts by weight:
polysiloxane resin: 30-55 parts of a base material,
silane modified polyurethane: 3-20 parts of a base material, wherein,
and (3) a plasticizer: 3-20 parts of a base material, wherein,
and (3) filling: 25-40 parts of a compound containing,
heat stabilizer: 0.1-2 parts of a compound,
ultraviolet absorber: 0.1-2 parts;
the component B consists of the following raw materials in parts by weight:
crosslinking agent: 5-10 parts of a compound containing, by weight,
thixotropic agent: 1-2 parts of a compound, wherein,
and (3) pigment: 1-2 parts of a compound, wherein,
water scavenger: 0.1-1 part of the total weight of the components,
adhesion promoters: 0.1-1 part of the total weight of the components,
catalyst: 0.1-1 parts;
in the component A, the polysiloxane is alpha, omega-dihydroxyl polysiloxane; the silane modified polyurethane is T-920R jm102 silane modified polyurethane; the plasticizer is diisodecyl phthalate (DIDP); the filler is one or a mixture of two of calcium carbonate and calcium oxide; the heat stabilizer is ferrocene-based heat stabilizer; the ultraviolet absorber is benzotriazole ultraviolet absorber;
in the component B, the cross-linking agent is one or more than two of tetraethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, dimethyldimethoxysilane or propyltrimethoxysilane; the thixotropic agent is silicon dioxide or clay; the pigment is carbon black or titanium dioxide; the water scavenger is calcium oxide or vinyl trimethoxy silane, the adhesion promoter is one or more than two of gamma-aminopropyl triethoxy silane, gamma-glycidol ether oxypropyl trimethoxy silane or N- (beta-aminoethyl) -gamma-aminopropyl trimethoxy silane, and the catalyst is dibutyl tin dilaurate or dibutyl tin diacetate.
2. The method for preparing the two-component modified silicone rubber adhesive for bonding the cabin door of the automobile as claimed in claim 1, which is characterized by comprising the following steps:
(1) Heating the raw materials of the component A to 50-100 ℃ under vacuum, and stirring and mixing at a stirring speed of 500-800r/min for 1-3h to obtain the component A;
(2) Taking the raw materials of the component B, stirring and mixing at the speed of 500-800r/min under vacuum condition for 1-3h to obtain the component B;
(3) And (2) mixing the A, B components according to the mass ratio of (10-15): 1 to obtain the two-component modified silicone rubber adhesive.
3. The bonding process for the automobile cabin door is characterized by comprising the following steps of:
1) Mixing the activator with deionized water, and spraying on the metal surface of the automobile cabin door for 3-5min;
2) Cleaning with a cleaning agent, wiping with a non-woven fabric, and beating the adhesive after 3-5min, wherein the adhesive is the two-component modified silicone rubber adhesive of claim 1;
the activating agent is one or more than two of methylsulfonyl chloride, sulfonyl chloride and phosphoric acid; the cleaning agent is an alcohol solution; the mass and dosage ratio of the activator, the deionized water and the cleaning agent is as follows: an activating agent: 1-20 parts of deionized water: 100 parts of cleaning agent: 200-400 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211383084.2A CN115466595B (en) | 2022-11-07 | 2022-11-07 | Bi-component modified silicone rubber adhesive for bonding automobile cabin door, preparation method and bonding process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211383084.2A CN115466595B (en) | 2022-11-07 | 2022-11-07 | Bi-component modified silicone rubber adhesive for bonding automobile cabin door, preparation method and bonding process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115466595A CN115466595A (en) | 2022-12-13 |
| CN115466595B true CN115466595B (en) | 2024-04-02 |
Family
ID=84338119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211383084.2A Active CN115466595B (en) | 2022-11-07 | 2022-11-07 | Bi-component modified silicone rubber adhesive for bonding automobile cabin door, preparation method and bonding process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115466595B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694065A (en) * | 2015-04-01 | 2015-06-10 | 成都硅宝科技股份有限公司 | Silicane modified polyurethane sealant used for automobile and preparing method thereof |
| CN105885766A (en) * | 2016-06-02 | 2016-08-24 | 广州集泰化工股份有限公司 | Environment-friendly high-strength nail-free glue not containing organic tin and preparation method thereof |
| CN109504065A (en) * | 2018-10-29 | 2019-03-22 | 五河富强鑫金属制品有限公司 | A kind of heat resist modification polyurethane rubber seal circle and preparation method thereof |
| CN109825084A (en) * | 2018-12-29 | 2019-05-31 | 江苏创景科技有限公司 | A kind of foaming bi-component organic silicon potting adhesive and preparation method thereof |
| CN110903803A (en) * | 2019-12-06 | 2020-03-24 | 浙江皇马新材料科技有限公司 | Modified polyurethane adhesive and preparation method thereof |
| CN111117546A (en) * | 2019-12-17 | 2020-05-08 | 湖北回天新材料股份有限公司 | High-temperature-resistant silane modified adhesive, and preparation method and application thereof |
| CN111763469A (en) * | 2020-07-24 | 2020-10-13 | 上海三棵树防水技术有限公司 | High-strength self-leveling silane modified waterproof coating and preparation method thereof |
| KR102223542B1 (en) * | 2019-10-18 | 2021-03-05 | 한국바이오젠 주식회사 | Sealant |
| CN114031767A (en) * | 2021-12-07 | 2022-02-11 | 广东普赛达密封粘胶有限公司 | Cyclic carbonate prepolymer, silane modified non-isocyanate polyurethane resin, and preparation methods and applications thereof |
| CN114539970A (en) * | 2022-04-14 | 2022-05-27 | 郑州圣莱特空心微珠新材料有限公司 | Light-weight low-air-tightness two-component silicone sealant and preparation method thereof |
-
2022
- 2022-11-07 CN CN202211383084.2A patent/CN115466595B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694065A (en) * | 2015-04-01 | 2015-06-10 | 成都硅宝科技股份有限公司 | Silicane modified polyurethane sealant used for automobile and preparing method thereof |
| CN105885766A (en) * | 2016-06-02 | 2016-08-24 | 广州集泰化工股份有限公司 | Environment-friendly high-strength nail-free glue not containing organic tin and preparation method thereof |
| CN109504065A (en) * | 2018-10-29 | 2019-03-22 | 五河富强鑫金属制品有限公司 | A kind of heat resist modification polyurethane rubber seal circle and preparation method thereof |
| CN109825084A (en) * | 2018-12-29 | 2019-05-31 | 江苏创景科技有限公司 | A kind of foaming bi-component organic silicon potting adhesive and preparation method thereof |
| KR102223542B1 (en) * | 2019-10-18 | 2021-03-05 | 한국바이오젠 주식회사 | Sealant |
| CN110903803A (en) * | 2019-12-06 | 2020-03-24 | 浙江皇马新材料科技有限公司 | Modified polyurethane adhesive and preparation method thereof |
| CN111117546A (en) * | 2019-12-17 | 2020-05-08 | 湖北回天新材料股份有限公司 | High-temperature-resistant silane modified adhesive, and preparation method and application thereof |
| CN111763469A (en) * | 2020-07-24 | 2020-10-13 | 上海三棵树防水技术有限公司 | High-strength self-leveling silane modified waterproof coating and preparation method thereof |
| CN114031767A (en) * | 2021-12-07 | 2022-02-11 | 广东普赛达密封粘胶有限公司 | Cyclic carbonate prepolymer, silane modified non-isocyanate polyurethane resin, and preparation methods and applications thereof |
| CN114539970A (en) * | 2022-04-14 | 2022-05-27 | 郑州圣莱特空心微珠新材料有限公司 | Light-weight low-air-tightness two-component silicone sealant and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115466595A (en) | 2022-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110157376B (en) | Transparent two-component silane modified polyether sealant and preparation method thereof | |
| CN104830225B (en) | It is a kind of to improve silane coupling agent of adhesive strength and preparation method thereof between silicon rubber and polypropylene material | |
| CN103087666B (en) | Reactive type polyurethane hot-melt sealant | |
| CN111073575A (en) | Single-component silane modified polyether sealant for prefabricated building and preparation method thereof | |
| CN108587545B (en) | Single-component silane modified polyether sealant for ALC (alcohol-vinyl alcohol) board and preparation method thereof | |
| US20090258985A1 (en) | Compositions for humidity proof heat sealer having low specific gravity | |
| CN113025253B (en) | Single-component silane modified polyether sealant and preparation method and application thereof | |
| CN112143446A (en) | Bi-component silicone sealant and preparation method and application thereof | |
| CN111607350A (en) | Glass cement and preparation method thereof | |
| CN109135650B (en) | Single-component silane modified polyether sealant and preparation method thereof | |
| CN110922930A (en) | Primer-free single-component polyurethane windshield glass adhesive and preparation method thereof | |
| CN108102607B (en) | Silane modified adhesive with fast surface drying, fast positioning and high strength and preparation method thereof | |
| CN111073577B (en) | Environment-friendly MS sealant and preparation method thereof | |
| CN109852338B (en) | Fluorosilicone rubber composition, method for producing the same, and sealant and coating prepared from the same | |
| CN115466595B (en) | Bi-component modified silicone rubber adhesive for bonding automobile cabin door, preparation method and bonding process thereof | |
| KR100575009B1 (en) | Sealant composition capable of being adhered vehicle panels of multiple properties | |
| CN111269679B (en) | Environment-friendly silane modified adhesive and preparation method and application thereof | |
| CN110257002B (en) | Two-component silicone sealant for projection lamp | |
| CN113583623A (en) | Double-component silicone rubber and preparation method and application thereof | |
| CN108753241A (en) | Silane modified polyether hot-melt adhesive composition and preparation method thereof | |
| CN110551429B (en) | Method for improving adhesion of high-humidity-resistant coating adhesive of anhydride-epoxy system | |
| CN115746769B (en) | Bi-component modified epoxy adhesive for bonding passenger car skin and preparation method thereof | |
| CN110922940B (en) | Environment-friendly MS sealant with rapid solidification and stable storage at room temperature and preparation method thereof | |
| CN114752336A (en) | Solvent-free epoxy adhesive with good flame retardance and application thereof | |
| CN110128996B (en) | Sealant, preparation method and application thereof and vehicle |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |