CN115141579B - High-durability flexible rubber metal bonding surface coating and application thereof - Google Patents
High-durability flexible rubber metal bonding surface coating and application thereof Download PDFInfo
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- CN115141579B CN115141579B CN202110925069.5A CN202110925069A CN115141579B CN 115141579 B CN115141579 B CN 115141579B CN 202110925069 A CN202110925069 A CN 202110925069A CN 115141579 B CN115141579 B CN 115141579B
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 152
- 239000002184 metal Substances 0.000 title claims abstract description 28
- 239000011248 coating agent Substances 0.000 title claims abstract description 23
- 238000000576 coating method Methods 0.000 title claims abstract description 12
- -1 nitrogen-containing compound Chemical class 0.000 claims abstract description 40
- 230000035939 shock Effects 0.000 claims abstract description 30
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 239000002904 solvent Substances 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 28
- 239000003973 paint Substances 0.000 claims description 15
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 229920000459 Nitrile rubber Polymers 0.000 claims description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000004593 Epoxy Substances 0.000 claims description 10
- 239000006229 carbon black Substances 0.000 claims description 10
- DZCCLNYLUGNUKQ-UHFFFAOYSA-N n-(4-nitrosophenyl)hydroxylamine Chemical compound ONC1=CC=C(N=O)C=C1 DZCCLNYLUGNUKQ-UHFFFAOYSA-N 0.000 claims description 9
- 229920005556 chlorobutyl Polymers 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 24
- 230000001070 adhesive effect Effects 0.000 abstract description 24
- 238000013016 damping Methods 0.000 abstract description 3
- 229920001967 Metal rubber Polymers 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 30
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 17
- 235000019241 carbon black Nutrition 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000008096 xylene Substances 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 229920001084 poly(chloroprene) Polymers 0.000 description 3
- FFWSICBKRCICMR-UHFFFAOYSA-N 5-methyl-2-hexanone Chemical compound CC(C)CCC(C)=O FFWSICBKRCICMR-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XYLFFOSVQCBSDT-UHFFFAOYSA-N 1,2-dinitrosobenzene Chemical compound O=NC1=CC=CC=C1N=O XYLFFOSVQCBSDT-UHFFFAOYSA-N 0.000 description 1
- JLNGXFCCWYKFIX-UHFFFAOYSA-N 1,3-dinitrosobenzene Chemical compound O=NC1=CC=CC(N=O)=C1 JLNGXFCCWYKFIX-UHFFFAOYSA-N 0.000 description 1
- MKZXROSCOHNKDX-UHFFFAOYSA-N 1,4-dinitrosobenzene Chemical compound O=NC1=CC=C(N=O)C=C1 MKZXROSCOHNKDX-UHFFFAOYSA-N 0.000 description 1
- NYJYFSGMYHSTNZ-UHFFFAOYSA-N 1-methyl-4-nitrosobenzene Chemical compound CC1=CC=C(N=O)C=C1 NYJYFSGMYHSTNZ-UHFFFAOYSA-N 0.000 description 1
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 1
- CBECDWUDYQOTSW-UHFFFAOYSA-N 2-ethylbut-3-enal Chemical compound CCC(C=C)C=O CBECDWUDYQOTSW-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920005557 bromobutyl Polymers 0.000 description 1
- BTMVHUNTONAYDX-UHFFFAOYSA-N butyl propionate Chemical compound CCCCOC(=O)CC BTMVHUNTONAYDX-UHFFFAOYSA-N 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical class ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- LPUQAYUQRXPFSQ-DFWYDOINSA-M monosodium L-glutamate Chemical compound [Na+].[O-]C(=O)[C@@H](N)CCC(O)=O LPUQAYUQRXPFSQ-DFWYDOINSA-M 0.000 description 1
- 235000013923 monosodium glutamate Nutrition 0.000 description 1
- 239000004223 monosodium glutamate Substances 0.000 description 1
- JTHNLKXLWOXOQK-UHFFFAOYSA-N n-propyl vinyl ketone Natural products CCCC(=O)C=C JTHNLKXLWOXOQK-UHFFFAOYSA-N 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- VLZLOWPYUQHHCG-UHFFFAOYSA-N nitromethylbenzene Chemical compound [O-][N+](=O)CC1=CC=CC=C1 VLZLOWPYUQHHCG-UHFFFAOYSA-N 0.000 description 1
- 125000003544 oxime group Chemical group 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- ARXJGSRGQADJSQ-UHFFFAOYSA-N propylene glycol methyl ether Substances COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 1
- 238000005728 strengthening Methods 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
- C09J115/00—Adhesives based on rubber derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/22—Incorporating nitrogen atoms into the molecule
-
- 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
Abstract
The invention relates to the technical field of damping metal-rubber adhesion, in particular to a flexible rubber metal adhesion surface coating with high durability and application thereof. The raw materials comprise the following components in percentage by mass: 5-30% of film forming agent, 5-15% of functional rubber, 5-20% of modified rubber, 1-15% of filler and the balance of solvent; the modified rubber is a reactive rubber modified by a nitrogen-containing compound. The high-durability flexible rubber metal adhesive surface coating agent is obviously superior to the traditional adhesive combination in limiting deformation resistance when being used for bonding of a shock insulation support. The invention can effectively increase the strength and flexibility of the bonding interface, so that the shock insulation support has better shock absorption performance when being deformed due to stress, and the durability of the product is greatly improved.
Description
Technical Field
The invention relates to the technical field of damping metal-rubber adhesion, in particular to a flexible rubber metal adhesion surface coating with high durability and application thereof.
Background
At present, the adhesive product of rubber and metal is widely applied to the purposes of shock absorption, shock insulation and sealing, not only maintains the rigidity of metal, but also gives consideration to the elasticity of rubber, and perfectly matches the application scenes. Rubber metal adhesive has industrial monosodium glutamate in the industries of automobile parts, plate-type supports, shock insulation supports, rubber tracks, wharf fenders and the like.
The vibration isolation support is a supporting device with a structure for meeting the vibration isolation requirement, a vibration isolation layer is added between an upper structure and a foundation, the rubber vibration isolation support is installed to achieve soft connection with the ground, and about 80% of energy of an earthquake can be counteracted through the technology. Such as laminated rubber mounts (or shock-insulating rubber mounts, sandwich rubber pads, etc.). The structural member has smaller horizontal rigidity and larger vertical rigidity, can bear large horizontal deformation, and can be used as a part of a bearing system. Because civil building overhauls the frequency low, the change degree of difficulty is big, and corresponding durability requirement to the support is higher, and in theory and building life-span are the appropriate, and this also puts forward the requirement to the adhesive. The traditional adhesive used for bonding rubber and metal on the shock insulation support is weak in deformation capability under the limit shearing force, and the adhesive layer is often broken under the shearing force generated during vibration, so that the shock insulation support loses the shock insulation and damping effects.
Disclosure of Invention
Aiming at the technical problems, the invention provides the high-durability flexible rubber metal bonding surface paint, which has the functions of strengthening, crosslinking and toughening in a system by adopting specific modified rubber, so that a final adhesive finished product has better flexibility, better durability and longer service life of a shock insulation support manufactured by bonding the adhesive finished product.
Specifically, the first aspect of the invention provides a high-durability flexible rubber metal bonding surface paint, which comprises the following raw materials in percentage by mass:
the modified rubber is a reactive rubber modified by a nitrogen-containing compound.
Further, the high-durability flexible rubber metal adhesive surface paint comprises the following components in percentage by mass:
the modified rubber is a reactive rubber modified by a nitrogen-containing compound.
As a preferable technical scheme, the raw materials of the nitrogen-containing compound modified reactive rubber comprise a nitrogen-containing compound and a rubber base material; preferably, the modified rubber component is prepared by reacting a rubber base material with a nitrogen-containing compound in a liquid phase.
Further, the nitrogen-containing compound includes, but is not limited to, one or more of nitrobenzene, nitrotoluene, p-nitrosotoluene, p-dinitrosobenzene, m-dinitrosobenzene, o-dinitrosobenzene, p-benzoquinone dioxime.
Further preferably, the nitrogen-containing compound is selected from compounds containing oxime groups; further, the nitrogen-containing compound is p-benzoquinone dioxime (CAS: 105-11-3).
As a preferred embodiment, the rubber base material is a hydroxyl-terminated rubber material and/or an epoxy-terminated rubber material.
Further, the hydroxyl-terminated rubber material and the epoxy-terminated rubber material are selected from one or more of hydroxyl-terminated nitrile rubber, epoxy-terminated nitrile rubber, hydroxyl-terminated butyl rubber, epoxy-terminated butyl rubber, hydroxyl-terminated chloroprene rubber and epoxy-terminated chloroprene rubber.
Further, the mass content of the nitrogen-containing compound is at least 20% of the sum of the mass of the nitrogen-containing compound and the mass of the rubber base material.
Further, the mass content of the nitrogen-containing compound is at least 25% of the sum of the mass of the nitrogen-containing compound and the mass of the rubber base material.
Preferably, the mass content of the nitrogen-containing compound is not more than 40% of the sum of the mass of the nitrogen-containing compound and the mass of the rubber base material. Further, the mass ratio of the nitrogen-containing compound to the rubber base material may be 8:2, 7:3, 6:4, etc.
Further preferably, the mass content of the nitrogen-containing compound is 25 to 35% of the total mass of the nitrogen-containing compound and the rubber base material.
As a preferable technical scheme, the preparation method of the modified rubber comprises the following steps:
adding a rubber base material into a benzene solvent, stirring and dissolving to obtain a rubber solution with the solid content of 30-40 w%, adding the rubber solution into a reaction kettle, replacing air in the reaction kettle with nitrogen, adding the nitrogen-containing compound, reacting for 4-8 hours at 55-70 ℃, heating to 75-85 ℃, treating for 20-45 min, cooling to room temperature, and filtering to obtain the rubber.
In the present invention, the benzene-based solvent may include, but is not limited to, toluene, xylene, etc.
Further, the modified rubber is present in an amount of at least 10% by weight of the highly durable flexible rubber metal bond topcoat material; further, it is at least 12wt%; further, the content thereof is at most 20wt%; further, the content thereof is at most 18wt%.
The applicant finds that under the application scene of the shock insulation support, the limit shear deformation of the shock insulation support manufactured by the traditional adhesive products on the market is generally between 400 and 450 percent, and the bonding strength between the surface coating agent and the rubber base material is weaker than the strength of the rubber base material or the bonding interface is weaker than the strength of the rubber body, so that most of the damaged surface is on the bonding interface of the surface coating adhesive and the rubber when the limit shear deformation test is carried out, thereby the application of the shock insulation support is limited to a certain extent. The applicant has found that the improved rubber obtained by adopting an appropriate amount of nitrogen-containing compound can significantly improve the deformation result of the face coating under the action of limiting shear, so that the face coating can be deformed more, and the effects of shock absorption and shock isolation can be maintained under stronger action force. At the same time, when the rubber material is broken, the interface between the rubber and the surface coating agent can be kept intact, and the rubber material is torn and broken. The applicant speculates that the addition of the specific reactive modified rubber component leads the surface coating agent component to introduce active groups such as hydroxyl groups, residual epoxy groups and the like into the system on the premise of keeping the flexibility and elasticity of the rubber, and the active groups enable the surface coating agent to permeate into the rubber substrate under the action of additional components such as a primer and the like when the metal and the rubber substrate are bonded, react with related groups in the rubber substrate or react with other structures in the surface coating agent after the surface coating agent permeates into the rubber substrate to form a dense crosslinked network, so that the surface of the rubber substrate is coated, the bonding strength can be further improved on the premise of leading the bonding surface to be more flexible, and the strength of the bonding interface is higher than the strength of the rubber body, thereby realizing the maximum limit deformation of 'rubber is not damaged and bonding is not damaged' in the use process.
However, the applicant has found that the nitrogen-containing compound content of the modified rubber cannot be too high, while the amount of modified rubber in the topcoat material is adequate, otherwise the deformation rate of the topcoat upon carrying out the limiting shear test is significantly affected. In particular, the applicant has found that when the nitrogen-containing compound content employed in the modified rubber component is less than 20% by weight (percentage based on the sum of the mass of the nitrogen-containing compound and the mass of the rubber base material), the effect of the ultimate shear deformation of the topcoat is insignificant, whereas when the content exceeds 40%, the ultimate shear deformation of the topcoat starts to decrease, while still maintaining the tearing of the rubber base material portion and the integrity of the bonded surface, the ultimate shear deformation is far less than that of the nitrogen-containing compound content in the range of 25 to 35%. Furthermore, on the premise of determining the content of the nitrogen-containing compound in the above-mentioned modified rubber, the higher the content of the non-modified rubber, the better the coating properties. The applicant found that the limiting shear deformation of the topcoat is reduced to a certain extent when the rubber content is improved to more than 20%, while the limiting shear deformation of the topcoat is likewise less elevated when the rubber content is less than 12, in particular less than 10%, which is far less than the result of the solution in the range of 12 to 18wt%, in particular when a film former is used, a chlorinated butyl rubber having a chlorine content of 1.26.+ -. 0.08 and a Mooney viscosity of 38.+ -. 5, the functional rubber being a polyvinyl butyral having a vinyl butyral content of 68 to 80%. The applicant speculates that when the amount of nitrogen-containing compound in the modified rubber is too high, or when the content of the modified rubber in the topcoat is too high, it may cause too high a crosslink density during the adhesion of the topcoat to the rubber substrate, even embrittling the adhesive layer in the adhesion interface, causing the deformation thereof not to rise or fall.
As a preferable technical scheme, the functional rubber is selected from one or more of chlorosulfonated polyethylene, chlorosulfonated polypropylene, polyisoprene, polyvinyl butyral and polyvinyl alcohol.
As a preferable technical scheme, the film forming agent is selected from one or more of chlorinated natural rubber, high chlorinated chloroprene rubber, chlorinated polyethylene, chlorinated polypropylene, chlorinated butyl rubber and brominated butyl rubber.
As a preferred embodiment, the filler is carbon black.
Further preferred, the carbon black is a carbon black including, but not limited to, carbon blacks having the designations N220, N326, N330, N550, N660, N762, N774.
The specific choice of the solvent component of the high-durability flexible rubber metal adhesive surface coating agent is not particularly limited in the present invention, and various solvents known to those skilled in the art can be selected, including but not limited to benzene solvents, ester solvents, ketone solvents, etc.
Further, the solvent is selected from one or more of xylene, toluene, ethylbenzene, dimethyl carbonate, methyl n-amyl ketone, cyclohexanone, propylene glycol methyl ether ethyl ester acid, methyl isoamyl ketone, butyl acetate, ethylene glycol ethyl ether acetate, n-butyl propionate and ethyl acetate.
The high-durability flexible rubber metal adhesive surface coating agent can be prepared and used according to a conventional method in the art, for example, after the modified rubber component is blended with other components in a system, the mixture is ground in a KD mill to the fineness of less than 15 mu m, and a sample of the hot vulcanized adhesive (namely the high-durability flexible rubber metal adhesive surface coating agent) is obtained for later use.
The second aspect of the invention provides application of the high-durability flexible rubber metal bonding surface paint, which is applied to the technical fields of shock absorption, shock insulation and sealing.
The technical scheme provided by the invention has the following beneficial effects:
in the application scene of the shock insulation support, the limit shear deformation of the shock insulation support manufactured by the traditional adhesive products on the market is generally between 400 and 450 percent, and the bonding strength between the surface coating agent and the rubber base material is weaker than the strength of the rubber base material or the bonding interface is weaker than the strength of the rubber body, so that most of the damaged surface is on the bonding interface of the surface coating adhesive and the rubber when the limit shear deformation test is carried out, thereby the application of the shock insulation support is limited to a certain extent. The high-durability flexible rubber metal bonding surface paint provided by the invention is characterized in that the improved rubber obtained by adopting an appropriate amount of nitrogen-containing compound is improved, so that the deformation result of the surface paint under the action of limiting shear is obviously improved, the surface paint can be deformed more greatly, and the effects of shock absorption and shock insulation are still maintained under stronger action force. Meanwhile, when the rubber is damaged, the interface between the rubber and the surface paint can be kept complete, and the maximum limit deformation of 'the rubber is not damaged and the bonding is not damaged' is realized in the use process as a result of tearing and damaging the rubber material.
Detailed Description
The technical features of the technical solution provided in the present invention will be further clearly and completely described in connection with the detailed description below, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The embodiment provides a high-durability flexible rubber metal bonding surface paint, which comprises the following raw materials in percentage by mass:
the film forming agent is chlorinated butyl rubber, and is a 1066 brand product (Mooney viscosity 38+ -5, chlorine content 1.26+ -0.08) of Exxon company; the functional rubber is polyvinyl butyral, and is a TB-20 brand product (10% ethanol solution viscosity is 2800-3800 mPa.s, and the content of the polyvinyl butyral is 68-80%) of Yingkou Tianyuan chemical research institute company; the filler is carbon black N326; the solvent is dimethylbenzene; the modified rubber is a nitrogen-containing compound modified reactive rubber, and the preparation method comprises the following steps:
80 parts by mass of the terminal epoxy nitrile rubber was added to 160 parts by mass of xylene, and the mixture was thoroughly dissolved by stirring with a high-speed stirrer at 600RPM for 2 hours, to obtain a rubber solution having a content of 33.3%. Transferring the solution into a reaction kettle, replacing air in the reaction kettle with dry nitrogen for protection, adding 20 parts by mass of p-benzoquinone dioxime, reacting for 6 hours at 60 ℃, heating to 80 ℃, preserving heat for 0.5 hour, and filtering by a 80-mesh filter screen to obtain the modified rubber. Wherein the epoxy-terminated nitrile rubber is CHX100 brand product (acrylonitrile content 24%, epoxy functionality not less than 1.8% and specific gravity 0.950) of Beijing Dewa chemical Co.
Example 2
The embodiment provides a high-durability flexible rubber metal bonding surface paint, which comprises the following raw materials in percentage by mass:
the film forming agent is chlorinated butyl rubber, and is a 1066 brand product (Mooney viscosity 38+ -5, chlorine content 1.26+ -0.08) of Exxon company; the functional rubber is polyvinyl butyral, and is a TB-20 brand product (10% ethanol solution viscosity is 2800-3800 mPa.s, and the content of the polyvinyl butyral is 68-80%) of Yingkou Tianyuan chemical research institute company; the filler is carbon black N326; the solvent is dimethylbenzene; the modified rubber is a nitrogen-containing compound modified reactive rubber, and the preparation method comprises the following steps:
70 parts by mass of the terminal epoxy nitrile rubber was added to 140 parts by mass of xylene, and the mixture was stirred with a high-speed stirrer at 600RPM for 2 hours to dissolve thoroughly, thereby obtaining a rubber solution having a content of 33.3%. Transferring the solution into a reaction kettle, replacing air in the reaction kettle with dry nitrogen for protection, adding 30 parts by mass of p-benzoquinone dioxime, reacting for 6 hours at 60 ℃, heating to 80 ℃, preserving heat for 0.5 hour, and filtering by a 80-mesh filter screen to obtain the modified rubber. Wherein the epoxy-terminated nitrile rubber is CHX100 brand product (acrylonitrile content 24%, epoxy functionality not less than 1.8% and specific gravity 0.950) of Beijing Dewa chemical Co.
Example 3
The embodiment provides a high-durability flexible rubber metal bonding surface paint, which comprises the following raw materials in percentage by mass:
the film forming agent is chlorinated butyl rubber, and is a 1066 brand product (Mooney viscosity 38+ -5, chlorine content 1.26+ -0.08) of Exxon company; the functional rubber is polyvinyl butyral, and is a TB-20 brand product (10% ethanol solution viscosity is 2800-3800 mPa.s, and the content of the polyvinyl butyral is 68-80%) of Yingkou Tianyuan chemical research institute company; the filler is carbon black N326; the solvent is dimethylbenzene; the modified rubber is a nitrogen-containing compound modified reactive rubber, and the preparation method comprises the following steps:
60 parts by mass of an epoxy-terminated nitrile rubber was added to 120 parts by mass of xylene, and the mixture was thoroughly dissolved by stirring with a high-speed stirrer at 600RPM for 2 hours, to obtain a 33.3% content rubber solution. Transferring the solution into a reaction kettle, replacing air in the reaction kettle with dry nitrogen for protection, adding 40 parts by mass of p-benzoquinone dioxime, reacting for 6 hours at 60 ℃, heating to 80 ℃, preserving heat for 0.5 hour, and filtering by a 80-mesh filter screen to obtain the modified rubber. Wherein the epoxy-terminated nitrile rubber is CHX100 brand product (acrylonitrile content 24%, epoxy functionality not less than 1.8% and specific gravity 0.950) of Beijing Dewa chemical Co.
Example 4
The embodiment provides a high-durability flexible rubber metal bonding surface paint, which comprises the following raw materials in percentage by mass:
the film forming agent is chlorinated butyl rubber, and is a 1066 brand product (Mooney viscosity 38+ -5, chlorine content 1.26+ -0.08) of Exxon company; the functional rubber is polyvinyl butyral, and is a TB-20 brand product (10% ethanol solution viscosity is 2800-3800 mPa.s, and the content of the polyvinyl butyral is 68-80%) of Yingkou Tianyuan chemical research institute company; the filler is carbon black N326; the solvent is dimethylbenzene; the modified rubber is a nitrogen-containing compound modified reactive rubber, and the preparation method comprises the following steps:
70 parts by mass of the terminal epoxy nitrile rubber was added to 140 parts by mass of xylene, and the mixture was stirred with a high-speed stirrer at 600RPM for 2 hours to dissolve thoroughly, thereby obtaining a rubber solution having a content of 33.3%. Transferring the solution into a reaction kettle, replacing air in the reaction kettle with dry nitrogen for protection, adding 30 parts by mass of p-benzoquinone dioxime, reacting for 6 hours at 60 ℃, heating to 80 ℃, preserving heat for 0.5 hour, and filtering by a 80-mesh filter screen to obtain the modified rubber. Wherein the epoxy-terminated nitrile rubber is CHX100 brand product (acrylonitrile content 24%, epoxy functionality not less than 1.8% and specific gravity 0.950) of Beijing Dewa chemical Co.
Example 5
The embodiment provides a high-durability flexible rubber metal bonding surface paint, which comprises the following raw materials in percentage by mass:
the film forming agent is chlorinated butyl rubber, and is a 1066 brand product (Mooney viscosity 38+ -5, chlorine content 1.26+ -0.08) of Exxon company; the functional rubber is polyvinyl butyral, and is a TB-20 brand product (10% ethanol solution viscosity is 2800-3800 mPa.s, and the content of the polyvinyl butyral is 68-80%) of Yingkou Tianyuan chemical research institute company; the filler is carbon black N326; the solvent is dimethylbenzene; the modified rubber is a nitrogen-containing compound modified reactive rubber, and the preparation method comprises the following steps:
70 parts by mass of the terminal epoxy nitrile rubber was added to 140 parts by mass of xylene, and the mixture was stirred with a high-speed stirrer at 600RPM for 2 hours to dissolve thoroughly, thereby obtaining a rubber solution having a content of 33.3%. Transferring the solution into a reaction kettle, replacing air in the reaction kettle with dry nitrogen for protection, adding 30 parts by mass of p-benzoquinone dioxime, reacting for 6 hours at 60 ℃, heating to 80 ℃, preserving heat for 0.5 hour, and filtering by a 80-mesh filter screen to obtain the modified rubber. Wherein the epoxy-terminated nitrile rubber is CHX100 brand product (acrylonitrile content 24%, epoxy functionality not less than 1.8% and specific gravity 0.950) of Beijing Dewa chemical Co.
Performance testing
The applicant prepares the surface coating sample of the embodiment into a finished product of the shock insulation support according to the section 3 of the GB 20688.3-2006 rubber support, and then carries out limit shear deformation performance test on the finished product of the shock insulation support. Specifically, the standard manufacturing rubber shock insulation rubber support of building is that the product B type of rubber shock insulation support scale product, and the product diameter is 400mm, and the number of rubber layers is 26, and rubber total thickness is 130mm, and the number of steel sheet layers is 27, and steel sheet thickness is 1.5mm. The product primer adhesive was Polyton 813 product of Shanghai Puli New Material technologies Co., ltd, the topcoat layer was the product of the above example, and the conventional topcoat product Polyton 821 of Shanghai Puli New Material Co., ltd was compared in parallel, and two commercially available compositions A (Chemlok 05+608) and B (Thixon P1+Megum 5×8) were used in the market. Wherein the primer corresponding to comparative example 1 is Polyton 813 and the topcoat is Polyton 821; comparative example 2 corresponds to a sample of commercial composition a; comparative example 3 corresponds to a sample of commercial composition B. See table 1 below for specific test results.
TABLE 1
| Examples/control samples | Ultimate shear deformation results | Form of destruction |
| Comparative example 1 | 433％ | Between rubber and adhesive |
| Example 1 | 455％ | Between rubber and adhesive |
| Example 2 | 496％ | Rubber tearing |
| Example 3 | 473％ | Rubber tearing |
| Example 4 | 522％ | Rubber tearing |
| Example 5 | 487％ | Rubber tearing |
| Comparative example 2 | 435％ | Between rubber and adhesive |
| Comparative example 3 | 411％ | Between rubber and adhesive |
From the above experimental results, it can be seen that the high durability flexible rubber metal adhesive face coating of the present invention has significantly better ultimate deformation resistance than conventional adhesive combinations when used in vibration isolation mount bonding. The invention can effectively increase the strength and flexibility of the bonding interface, so that the shock insulation support has better shock absorption performance when being deformed due to stress, and the durability of the product is greatly improved.
The operations and steps disclosed in the embodiments of the present invention relate to portions specific to the present invention, and other steps may be performed according to operations well known to those skilled in the art.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way; the embodiments of the present disclosure and features in the embodiments may be combined with each other to arrive at a new embodiment without conflict. Equivalent embodiments of the present invention will be apparent to those skilled in the art to which the present invention pertains, upon consideration of the following detailed description of the present invention with reference to the figures appended hereto.
Claims (3)
1. The high-durability flexible rubber metal bonding surface paint is characterized by comprising the following raw materials in percentage by mass:
7% of film forming agent
Functional rubber 6%
12% or 15% or 18% of modified rubber
Filler 3%
A solvent balance;
the film forming agent is chlorinated butyl rubber;
the functional rubber is polyvinyl butyral, the viscosity of a 10% ethanol solution of the polyvinyl butyral is 2800-3800 mPa.s, and the content of the polyvinyl butyral is 68-80%;
the modified rubber is a nitrogen-containing compound modified reactive rubber, and the preparation method comprises the following steps:
adding a rubber base material into a benzene solvent, stirring and dissolving to obtain a rubber solution with the solid content of 30-40 w%, adding the rubber solution into a reaction kettle, replacing air in the reaction kettle with nitrogen, adding the nitrogen-containing compound, reacting for 4-8 hours at 55-70 ℃, heating to 75-85 ℃, treating for 20-45 min, cooling to room temperature, and filtering to obtain the rubber;
the rubber base material is an epoxy nitrile rubber;
the nitrogen-containing compound is p-benzoquinone dioxime, and the mass content of the nitrogen-containing compound accounts for 25-35% of the total mass of the nitrogen-containing compound and the rubber base material.
2. The high durability flexible rubber metal bonding surface coating according to claim 1, wherein the filler is carbon black.
3. The application of the high-durability flexible rubber metal bonding surface paint according to any one of claims 1-2, which is characterized by being applied to the technical fields of shock absorption, shock insulation and sealing.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6004425A (en) * | 1995-01-26 | 1999-12-21 | Henkel-Teroson Gmbh | Rubber-based structural white-shell adhesives |
| JP2009007408A (en) * | 2007-06-26 | 2009-01-15 | Sumitomo Rubber Ind Ltd | Rubber composition for adhesion of steel cord and pneumatic tire using the same |
| CN107567486A (en) * | 2015-05-01 | 2018-01-09 | 洛德公司 | Adhesive for rubber bonding |
| CN109337590A (en) * | 2018-09-07 | 2019-02-15 | 上海普力通新材料科技有限公司 | A kind of shock insulation high-damping rubber tailored version Heat vulcanization adhesive |
-
2021
- 2021-08-12 CN CN202110925069.5A patent/CN115141579B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6004425A (en) * | 1995-01-26 | 1999-12-21 | Henkel-Teroson Gmbh | Rubber-based structural white-shell adhesives |
| JP2009007408A (en) * | 2007-06-26 | 2009-01-15 | Sumitomo Rubber Ind Ltd | Rubber composition for adhesion of steel cord and pneumatic tire using the same |
| CN107567486A (en) * | 2015-05-01 | 2018-01-09 | 洛德公司 | Adhesive for rubber bonding |
| CN109337590A (en) * | 2018-09-07 | 2019-02-15 | 上海普力通新材料科技有限公司 | A kind of shock insulation high-damping rubber tailored version Heat vulcanization adhesive |
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