CN116790051B - Rubber material for suction cup, preparation method of rubber material and vehicle-mounted rubber suction cup - Google Patents
Rubber material for suction cup, preparation method of rubber material and vehicle-mounted rubber suction cup Download PDFInfo
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- CN116790051B CN116790051B CN202310719379.0A CN202310719379A CN116790051B CN 116790051 B CN116790051 B CN 116790051B CN 202310719379 A CN202310719379 A CN 202310719379A CN 116790051 B CN116790051 B CN 116790051B
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- sulfate whisker
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 111
- 239000000463 material Substances 0.000 title claims abstract description 92
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical class [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 173
- 239000006229 carbon black Substances 0.000 claims abstract description 63
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 32
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 12
- GFSJJVJWCAMZEV-UHFFFAOYSA-N n-(4-anilinophenyl)-2-methylprop-2-enamide Chemical compound C1=CC(NC(=O)C(=C)C)=CC=C1NC1=CC=CC=C1 GFSJJVJWCAMZEV-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 11
- 239000005011 phenolic resin Substances 0.000 claims abstract description 11
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000011049 filling Methods 0.000 claims abstract description 10
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 7
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 7
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 7
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000008117 stearic acid Substances 0.000 claims abstract description 7
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 7
- 239000011593 sulfur Substances 0.000 claims abstract description 7
- 239000011787 zinc oxide Substances 0.000 claims abstract description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 66
- AKFXQYMORAUSBD-UHFFFAOYSA-N 1-chloro-3-methylpyrido[1,2-a]benzimidazole-4-carbonitrile Chemical compound C12=CC=CC=C2N=C2N1C(Cl)=CC(C)=C2C#N AKFXQYMORAUSBD-UHFFFAOYSA-N 0.000 claims description 54
- -1 adipoyl diamine Chemical class 0.000 claims description 48
- 238000003756 stirring Methods 0.000 claims description 42
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 31
- 238000002156 mixing Methods 0.000 claims description 23
- 239000003921 oil Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 12
- 238000009210 therapy by ultrasound Methods 0.000 claims description 12
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 11
- 229910000077 silane Inorganic materials 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 claims description 6
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- UMGDCJDMYOKAJW-UHFFFAOYSA-N aminothiocarboxamide Natural products NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 3
- 239000010692 aromatic oil Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000010690 paraffinic oil Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000003878 thermal aging Methods 0.000 abstract description 8
- 238000012545 processing Methods 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 18
- 230000032683 aging Effects 0.000 description 17
- 125000003277 amino group Chemical group 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 150000001408 amides Chemical class 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 4
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 125000004185 ester group Chemical group 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 125000002252 acyl group Chemical group 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012744 reinforcing agent Substances 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- QHPQWRBYOIRBIT-UHFFFAOYSA-N 4-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C=C1 QHPQWRBYOIRBIT-UHFFFAOYSA-N 0.000 description 2
- 241000872198 Serjania polyphylla Species 0.000 description 2
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical group [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 125000005462 imide group Chemical group 0.000 description 2
- RCHKEJKUUXXBSM-UHFFFAOYSA-N n-benzyl-2-(3-formylindol-1-yl)acetamide Chemical compound C12=CC=CC=C2C(C=O)=CN1CC(=O)NCC1=CC=CC=C1 RCHKEJKUUXXBSM-UHFFFAOYSA-N 0.000 description 2
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- PKDCQJMRWCHQOH-UHFFFAOYSA-N triethoxysilicon Chemical compound CCO[Si](OCC)OCC PKDCQJMRWCHQOH-UHFFFAOYSA-N 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 239000005662 Paraffin oil Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- LFEUVBZXUFMACD-UHFFFAOYSA-H lead(2+);trioxido(oxo)-$l^{5}-arsane Chemical compound [Pb+2].[Pb+2].[Pb+2].[O-][As]([O-])([O-])=O.[O-][As]([O-])([O-])=O LFEUVBZXUFMACD-UHFFFAOYSA-H 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application relates to the technical field of vehicle-mounted rubber sucker processing, and particularly discloses a rubber material for a sucker, a preparation method of the rubber material and a vehicle-mounted rubber sucker. The rubber material for the sucker is mainly prepared from the following raw materials in parts by weight: 80-90 parts of nitrile rubber, 10-20 parts of phenolic resin, 6-10 parts of filling oil, 4-6 parts of zinc oxide, 2-4 parts of magnesium oxide, 1-2 parts of stearic acid, 1-2 parts of accelerator, 1-2 parts of sulfur, 0.5-1.5 parts of N- (1, 3-dimethyl) butyl-N' -phenyl p-phenylenediamine, 0.5-1.5 parts of N- (4-anilinophenyl) methacrylamide, 40-50 parts of carbon black, 10-20 parts of white carbon black and 10-20 parts of modified calcium sulfate whisker. The rubber material has the advantages of high mechanical property, high thermal aging resistance and high wear resistance, and meets the market demand.
Description
Technical Field
The application relates to the technical field of vehicle-mounted rubber sucker processing, in particular to a rubber material for a sucker, a preparation method of the rubber material and a vehicle-mounted rubber sucker.
Background
With the development of society and the improvement of living standard, more and more people choose to drive and go out. In order to facilitate the running of the automobile, a rubber sucker is often used for installing a GPS on the automobile, and the GPS is a global positioning system which can provide accurate positioning service. The rubber sucker has the fixing effect on the GPS, has the advantages of convenient installation, no damage to the sucked workpiece and random movement, and is widely loved and applied.
In the processing of rubber suction cups, reinforcing agents, antioxidants, vulcanizing agents, fillers, accelerators, and the like are usually added to nitrile rubber. The reinforcing agent is preferably carbon black, the surface of which contains a large number of active groups, can form physical or chemical combination with raw materials, and can also form an adsorption layer in the rubber material, so that intermolecular attraction is increased, and the effects of enhancing the heat aging resistance and the wear resistance of the rubber material are achieved. However, the applicant found that, in actual processing, although carbon black can play a reinforcing role, the performance of the rubber material is improved only to a limited extent with the increase of the addition amount of carbon black, and the thermal aging resistance and the wear resistance of the rubber material cannot be further enhanced.
Disclosure of Invention
In order to increase the thermal aging resistance and the wear resistance of the rubber material, the application provides a rubber material for a sucker, a preparation method thereof and a vehicle-mounted rubber sucker.
In a first aspect, the present application provides a rubber material for a suction cup, which adopts the following technical scheme:
the rubber material for the sucker is mainly prepared from the following raw materials in parts by weight: 80-90 parts of nitrile rubber, 10-20 parts of phenolic resin, 6-10 parts of filling oil, 4-6 parts of zinc oxide, 2-4 parts of magnesium oxide, 1-2 parts of stearic acid, 1-2 parts of accelerator, 1-2 parts of sulfur, 0.5-1.5 parts of N- (1, 3-dimethyl) butyl-N' -phenyl p-phenylenediamine, 0.5-1.5 parts of N- (4-anilinophenyl) methacrylamide, 40-50 parts of carbon black, 10-20 parts of white carbon black and 10-20 parts of modified calcium sulfate whisker;
the modified calcium sulfate whisker is obtained by treating calcium sulfate whisker with gamma-aminopropyl triethoxysilane, adipoyl diamine and ethyl 3-butenoate.
By adopting the technical scheme, the rubber material has the advantages of high mechanical property, high heat aging resistance and high wear resistance, good comprehensive performance and meets market demands, and the tensile strength loss rate of the rubber material is more than 18MPa, the aging tensile strength loss rate of 48 hours is less than 3%, the aging tensile strength loss rate of 120 hours is less than 5% and the wear amount is less than 30mg/100 r.
Carbon black, which is a commonly used reinforcing agent, is added to the raw material, so that the thermal aging resistance and the wear resistance of the rubber material can be effectively improved. On the basis, the white carbon black and the modified calcium sulfate whisker are used for replacing part of the carbon black, and the coexistence of the carbon black, the white carbon black and the modified calcium sulfate whisker is formed. The white carbon black has a large number of pores inside, and the surface contains a large number of active groups, so that chemical bonds and hydrogen bonds can be formed with rubber raw materials, and the interaction of the raw materials is increased. The calcium sulfate whisker is needle-shaped, can strengthen the three-dimensional network structure of the rubber material, and contains a large amount of siloxy groups, acyl groups and imide groups on the surface after being treated by gamma-aminopropyl triethoxysilane, adipoyl diamine and ethyl 3-butenoate, so that the compatibility and interaction between raw materials are effectively improved, and the use effect of the calcium sulfate whisker is improved. According to the rubber material, on the basis of adding carbon black, part of carbon black is replaced by white carbon black and modified calcium sulfate whisker, and the tensile strength of the rubber material is obviously enhanced by utilizing the synergy between the white carbon black and the modified calcium sulfate whisker, so that the aging tensile strength loss rate and the abrasion loss of the rubber material are greatly reduced, and the rubber material shows better comprehensive performance.
Optionally, the modified calcium sulfate whisker is prepared by the following method:
t1, adding a first part of gamma-aminopropyl triethoxysilane into water, mixing, then adding calcium sulfate whisker, carrying out ultrasonic treatment for 20-40min, stirring for 3-5h, filtering, washing and drying to obtain silane grafted calcium sulfate whisker;
adding silane grafted calcium sulfate whisker into ethanol at 60-70 ℃, carrying out ultrasonic treatment for 20-40min, adding first part of ethyl 3-butenoate, carrying out stirring treatment for 9-11h, adding first part of adipoyl diamine, carrying out stirring treatment for 9-11h, adding second part of ethyl 3-butenoate, carrying out stirring treatment for 9-11h, adding second part of adipoyl diamine, carrying out stirring treatment for 9-11h, adding third part of ethyl 3-butenoate, carrying out stirring treatment for 9-11h, adding second part of gamma-aminopropyl triethoxysilane, carrying out stirring treatment for 9-11h, filtering, washing and drying to obtain the modified calcium sulfate whisker.
Optionally, the weight ratio of the calcium sulfate whisker, the first part of gamma-aminopropyl triethoxysilane, the first part of ethyl 3-butenoate, the first part of adipoyl diamine, the second part of ethyl 3-butenoate, the second part of adipoyl diamine, the third part of ethyl 3-butenoate and the second part of gamma-aminopropyl triethoxysilane is (18-22): (4-6): (4.5-5.5): (5.5-7.5): (9-11): (11-15): (18-22): (35-45).
The gamma-aminopropyl triethoxy silicon contains siloxy and amino groups, the adipoyl diamine contains two acyl groups and two amino groups, and the 3-ethyl butenoate contains carbon-carbon double bonds and ester groups. Firstly, grafting a first part of gamma-aminopropyl triethoxy silicon onto a calcium sulfate whisker, adding an amino group in the silane grafted calcium sulfate whisker and a carbon-carbon double bond in a first part of ethyl 3-butenoate, increasing the number of branched chains, and then amide is generated between an ester group in a product and an amino group in a first part of adipoyl diamine, and the length of the branched chains is increased. Then the amino group in the product and the carbon-carbon double bond in the second part of ethyl 3-butenoate are added to further increase the branched chain number, and then the ester group in the product and the amino group in the second part of adipoyl diamine are subjected to amide to further increase the branched chain length. Then the amino group in the product and the carbon-carbon double bond in the third part of ethyl 3-butenoate are added to further increase the branched chain number, then the ester group in the product and the amino group in the second part of gamma-aminopropyl triethoxysilane are subjected to amide to further increase the branched chain length, and a large number of silicon oxygen groups are introduced at the tail end of the branched chain.
In the preparation method of the modified calcium sulfate whisker, gamma-aminopropyl triethoxysilane, adipoyl diamine and ethyl 3-butenoate are added in steps to alternately perform addition and amide reactions, and the surface of the calcium sulfate whisker contains a large amount of silicon oxygen groups, acyl groups and imide groups, so that the interaction between the calcium sulfate whisker and carbon black and white carbon black is increased, the tensile strength and heat aging resistance of a rubber material are improved, and the rubber material shows better performance.
Further, in the preparation method of the modified calcium sulfate whisker, the weight ratio of the calcium sulfate whisker to the water to the ethanol is (9-11)/(70-130). Preferably, the weight ratio of the calcium sulfate whisker to the water to the ethanol is 1:10:10.
Optionally, in the preparation of the modified calcium sulfate whisker,
adding the first part of ethyl 3-butenoate into ethanol in a dropwise manner, and finishing dropwise addition within 1-2 h;
adding the first part of adipoyl diamine into ethanol in a dropwise manner, and finishing dropwise addition within 1-2 hours;
adding the second part of ethyl 3-butenoate into ethanol in a dropwise manner, and finishing dropwise addition within 1-2 h;
adding the second part of adipoyl diamine into ethanol in a dropwise manner, and finishing dropwise addition within 1-2 hours;
adding the third part of ethyl 3-butenoate into ethanol in a dropwise manner, and finishing dropwise addition within 1-2 h;
the second part of gamma-aminopropyl triethoxysilane is added into ethanol in a dropwise manner, and the dropwise addition is completed within 1-2 h.
By adopting the technical scheme, the first part of ethyl 3-butenoate, the first part of adipoyl diamine, the second part of ethyl 3-butenoate, the second part of adipoyl diamine, the third part of ethyl 3-butenoate and the second part of gamma-aminopropyl triethoxysilane are added into ethanol in a dropwise manner, so that the reaction is facilitated.
Optionally, the average diameter of the calcium sulfate whisker is 1-5 μm, and the average length of the calcium sulfate whisker is 10-50 μm.
Optionally, the carbon black has an average particle size of 100 to 200 μm; the average granularity of the white carbon black is 50-100 mu m.
By adopting the technical scheme, the average length and the average diameter of the calcium sulfate whisker are optimized, and meanwhile, the average granularity of the carbon black and the white carbon black is optimized, so that the selection of the calcium sulfate whisker, the carbon black and the white carbon black is facilitated, the dispersion of the modified calcium sulfate whisker, the carbon black and the white carbon black is facilitated, the interaction between the modified calcium sulfate whisker, the carbon black and the white carbon black is enhanced, and the performance of the rubber material is improved.
In one embodiment, the calcium sulfate whiskers have an average diameter of 2 μm and an average length of 35 μm. The average diameter of the calcium sulfate whisker may be set to 1 μm, 3 μm, 4 μm, 5 μm or the like as required, or the average length of the calcium sulfate whisker may be set to 10 μm, 20 μm, 30 μm, 40 μm, 50 μm or the like as required.
In one embodiment, the average particle size of the carbon black is 150 μm. The average particle size of the white carbon black was 70. Mu.m. It is also possible to set the average particle size of the carbon black to 100 μm, 120 μm, 130 μm, 170 μm, 180 μm, 200 μm, etc. as required. The average particle size of the white carbon black may be set to 50 μm, 60 μm, 80 μm, 90 μm, 100 μm or the like as required.
Optionally, the filling oil is one or more of naphthenic oil, aromatic oil and paraffinic oil.
By adopting the technical scheme, the naphthenic oil, the aromatic oil and the paraffinic oil can improve the elasticity of the rubber material, and are convenient for processing the rubber material. And the naphthenic oil, aromatic hydrocarbon oil and paraffin oil are rich in sources and are easy to obtain.
Optionally, the accelerator is one or more of 2-thiol benzothiazole, 1, 2-ethylene thiourea and N-cyclohexyl-2-benzothiazole sulfenamide.
By adopting the technical scheme, the 2-mercaptobenzothiazole, the 1, 2-ethylenethiourea and the N-cyclohexyl-2-benzothiazole sulfenamide can promote vulcanization, reduce the vulcanization temperature and shorten the vulcanization time. And the accelerator can achieve the expected effect when being selected from 2-thiol benzothiazole, 1, 2-ethylene thiourea and N-cyclohexyl-2-benzothiazole sulfenamide.
Further, the nitrile rubber is a hydrogenated nitrile rubber. The phenolic resin is p-tert-butyl phenolic resin.
In a second aspect, the present application provides a method for preparing the rubber material for suction cups, which adopts the following technical scheme:
the preparation method of the rubber material for the sucker comprises the following steps:
s1, adding phenolic resin into nitrile rubber, mixing for 2-4min, then adding magnesium oxide, N- (1, 3-dimethyl) butyl-N' -phenyl p-phenylenediamine and N- (4-anilinophenyl) methacrylamide, mixing for 10-15min, and standing for 15-25min; adding stearic acid, mixing for 10-15min, and standing for 15-25min; adding filling oil, carbon black, white carbon black and modified calcium sulfate whisker, mixing for 10-15min, and standing for 15-25min to obtain a mixture;
s2, adding zinc oxide, sulfur and an accelerator into the mixture at the temperature of 55-65 ℃, carrying out mixing treatment for 15-20min, and standing for 13-18h to obtain a mixed rubber;
s3, vulcanizing the rubber compound for 45-55min under the pressure of 6-8MPa and the temperature of 155-165 ℃ to obtain the rubber material.
By adopting the technical scheme, firstly mixing nitrile rubber and phenolic resin, then mixing magnesium oxide, N- (1, 3-dimethyl) butyl-N' -phenyl-p-phenylenediamine and N- (4-anilinophenyl) methacrylamide, then mixing stearic acid, then mixing filling oil, carbon black, white carbon black and modified calcium sulfate whisker, and finally mixing zinc oxide, sulfur and an accelerator and vulcanizing. The raw materials are mixed in steps, so that the preparation of the rubber material is facilitated, the raw materials are mixed uniformly, the rubber material forms a compact network structure, the mechanical property, the thermal aging resistance and the wear resistance are improved, and the application range of the rubber material is enlarged.
In a third aspect, the present application provides a vehicle-mounted rubber suction cup, which adopts the following technical scheme:
the vehicle-mounted rubber suction cup is prepared from the rubber material for the suction cup.
In summary, the present application has at least the following beneficial effects:
1. according to the rubber material for the sucker, through mutual matching among raw materials, the tensile strength is more than 18MPa, the aging tensile strength loss rate at 48h is less than 3%, the aging tensile strength loss rate at 120h is less than 5%, the abrasion loss is less than 30mg/100r, the advantages of high mechanical property, high thermal aging resistance and high abrasion resistance are shown, and the market demand is met.
2. In the preparation method of the modified calcium sulfate whisker, firstly, gamma-aminopropyl triethoxysilane is grafted onto the calcium sulfate whisker, then adipoyl diamine and ethyl 3-butenoate are added in steps to alternately perform addition and amide reaction, and finally gamma-aminopropyl triethoxysilane is added, a large amount of silica groups are introduced at the tail end of a branched chain, so that the compatibility between raw materials is improved, the use effect of the modified calcium sulfate whisker is enhanced, the tensile strength and the heat aging resistance of a rubber material are also improved, and the rubber material shows better performance.
Detailed Description
In order that the present application may be more readily understood, the following examples are presented in conjunction with the following detailed description, which are intended to be illustrative only and are not intended to limit the scope of application of the present application. The starting materials or components used in the present application may be prepared by commercial or conventional methods unless specifically indicated.
Preparation example
Preparation example 1
A modified calcium sulfate whisker, which is prepared by the following method:
t1, adding 5kg of first gamma-aminopropyl triethoxysilane into 200kg of water at the rotating speed of 300r/min, and stirring for 10min. Then 20kg of calcium sulfate whisker is added, ultrasonic treatment is carried out for 30min, and stirring treatment is carried out for 4h. And (5) filtering. Then washed with 50kg of water. And then drying at 90 ℃ to obtain the silane grafted calcium sulfate whisker.
And T2, heating 200kg of ethanol to 65 ℃ at the rotating speed of 300r/min, adding silane grafted calcium sulfate whisker, and carrying out ultrasonic treatment for 30min. Then 5.2kg of first part of ethyl 3-butenoate is dripped, the dripping of the first part of ethyl 3-butenoate is completed in 1.5h, and the treatment is continued for 10h after the dripping is completed. Then, 6.5kg of the first part of adipoyl diamine is dripped, the first part of adipoyl diamine is dripped for 1.5h, and stirring treatment is continued for 10h after the dripping is finished. Then, 10.3kg of second part of ethyl 3-butenoate is dripped, the dripping of the second part of ethyl 3-butenoate is completed in 1.5h, and stirring treatment is continued for 10h after the dripping is completed. 13kg of a second part of adipoyl diamine is then added dropwise, and after the second part of adipoyl diamine is added dropwise for 1.5h, stirring is continued for 10h. Then, 20.6kg of third ethyl 3-butenoate is dripped, the third ethyl 3-butenoate is dripped for 1.5h, and stirring treatment is continued for 10h after the dripping is finished. Then, 40kg of second gamma-aminopropyl triethoxysilane is dripped, the second gamma-aminopropyl triethoxysilane is dripped for 1.5h, and stirring treatment is continued for 10h after the dripping is finished. And (5) filtering. Then washed with 50kg of ethanol, with 50kg of ethanol solution and with 50kg of water. And then drying at 90 ℃ to obtain the modified calcium sulfate whisker.
Wherein the average diameter of the calcium sulfate whisker is 2 mu m, the average length of the calcium sulfate whisker is 35 mu m, and the calcium sulfate whisker is selected from Jiangxi Rong technology Co. The mass concentration of the ethanol solution was 50%.
Preparation example 2
A modified calcium sulfate whisker, which is prepared by the following method:
t1, adding 4kg of first gamma-aminopropyl triethoxysilane into 150kg of water at the rotating speed of 300r/min, and stirring for 10min. Then 18kg of calcium sulfate whisker is added, ultrasonic treatment is carried out for 20min, and stirring treatment is carried out for 5h. And (5) filtering. Then washed with 50kg of water. And then drying at 90 ℃ to obtain the silane grafted calcium sulfate whisker.
And T2, heating 150kg of ethanol to 60 ℃ at the rotating speed of 300r/min, adding silane grafted calcium sulfate whisker, and carrying out ultrasonic treatment for 20min. Then, 4.5kg of first part of ethyl 3-butenoate is dripped, and after the dripping is finished, the first part of ethyl 3-butenoate is continuously treated for 9 hours. Then 7.5kg of first part of adipoyl diamine is dripped, and after the dripping of the first part of adipoyl diamine is finished for 2 hours, stirring treatment is continued for 11 hours. Then, 11kg of second part of ethyl 3-butenoate is dripped, and after the dripping of the second part of ethyl 3-butenoate is completed for 2 hours, stirring treatment is continued for 11 hours. Then, 11kg of second adipoyl diamine is dripped, and after the dripping of the second adipoyl diamine is completed for 1h, stirring treatment is continued for 9h. Then 22kg of third ethyl 3-butenoate is dripped, after the dripping of the third ethyl 3-butenoate is completed for 2 hours, stirring treatment is continued for 11 hours. Then, 35kg of second gamma-aminopropyl triethoxysilane is dripped, and after the dripping is finished, stirring treatment is continued for 9 hours. And (5) filtering. Then washed with 50kg of ethanol, with 50kg of ethanol solution and with 50kg of water. And then drying at 90 ℃ to obtain the modified calcium sulfate whisker.
Wherein the average diameter of the calcium sulfate whisker is 2 mu m, the average length of the calcium sulfate whisker is 35 mu m, and the calcium sulfate whisker is selected from Jiangxi Rong technology Co. The mass concentration of the ethanol solution was 50%.
Preparation example 3
A modified calcium sulfate whisker, which is prepared by the following method:
t1, adding 6kg of the first gamma-aminopropyl triethoxysilane into 250kg of water at the rotating speed of 300r/min, and stirring for 10min. Then 22kg of calcium sulfate whisker is added, ultrasonic treatment is carried out for 40min, and stirring treatment is carried out for 3h. And (5) filtering. Then washed with 50kg of water. And then drying at 90 ℃ to obtain the silane grafted calcium sulfate whisker.
And T2, heating 250kg of ethanol to 70 ℃ at the rotating speed of 300r/min, adding silane grafted calcium sulfate whisker, and carrying out ultrasonic treatment for 40min. Then 5.5kg of first part of ethyl 3-butenoate is dripped, and after the dripping is finished, the first part of ethyl 3-butenoate is continuously treated for 11 hours. Then 5.5kg of first part of adipoyl diamine is dripped, and after the dripping of the first part of adipoyl diamine is completed for 1h, stirring treatment is continued for 9h. Then 9kg of second part of ethyl 3-butenoate is dripped, after the dripping of the second part of ethyl 3-butenoate is completed for 1 hour, stirring treatment is continued for 9 hours after the dripping is completed. Then, 15kg of second adipoyl diamine is dripped, and after the dripping of the second adipoyl diamine is completed for 2 hours, stirring treatment is continued for 11 hours. Then, 18kg of third ethyl 3-butenoate is dripped, and after the dripping of the third ethyl 3-butenoate is completed for 1 hour, stirring treatment is continued for 9 hours. Then 45kg of second gamma-aminopropyl triethoxysilane is dripped, after the dripping of the second gamma-aminopropyl triethoxysilane is completed for 2 hours, stirring treatment is continued for 11 hours. And (5) filtering. Then washed with 50kg of ethanol, with 50kg of ethanol solution and with 50kg of water. And then drying at 90 ℃ to obtain the modified calcium sulfate whisker.
Wherein the average diameter of the calcium sulfate whisker is 2 mu m, the average length of the calcium sulfate whisker is 35 mu m, and the calcium sulfate whisker is selected from Jiangxi Rong technology Co. The mass concentration of the ethanol solution was 50%.
Preparation example 4
A modified calcium sulfate whisker, which is prepared by the following method:
100.6kg of gamma-aminopropyl triethoxysilane was added to 200kg of water at a rotation speed of 300r/min, and the mixture was stirred for 10min. Then 20kg of calcium sulfate whisker is added, ultrasonic treatment is carried out for 30min, and stirring treatment is carried out for 30h. And (5) filtering. Then washed with 50kg of water. And then drying at 90 ℃ to obtain the modified calcium sulfate whisker.
Wherein the average diameter of the calcium sulfate whisker is 2 mu m, the average length of the calcium sulfate whisker is 35 mu m, and the calcium sulfate whisker is selected from Jiangxi Rong technology Co.
Preparation example 5
A modified calcium sulfate whisker, which is prepared by the following method:
200kg of ethanol is heated to 65℃at a rotation speed of 300r/min, then 5kg of adipoyl diamine A is added and stirred for 10min. Then 20kg of calcium sulfate whisker is added, ultrasonic treatment is carried out for 30min, and stirring treatment is carried out for 4h. Then 5.2kg of first part of ethyl 3-butenoate is dripped, the dripping of the first part of ethyl 3-butenoate is completed in 1.5h, and the treatment is continued for 10h after the dripping is completed. Then, 6.5kg of the first part of adipoyl diamine is dripped, the first part of adipoyl diamine is dripped for 1.5h, and stirring treatment is continued for 10h after the dripping is finished. Then, 10.3kg of second part of ethyl 3-butenoate is dripped, the dripping of the second part of ethyl 3-butenoate is completed in 1.5h, and stirring treatment is continued for 10h after the dripping is completed. 13kg of a second part of adipoyl diamine is then added dropwise, and after the second part of adipoyl diamine is added dropwise for 1.5h, stirring is continued for 10h. Then, 20.6kg of third ethyl 3-butenoate is dripped, the third ethyl 3-butenoate is dripped for 1.5h, and stirring treatment is continued for 10h after the dripping is finished. Then, 40kg of adipoyl diamine B is dripped, after dripping is completed for 1.5h, stirring treatment is continued for 10h. And (5) filtering. Then washed with 50kg of ethanol, with 50kg of ethanol solution and with 50kg of water. And then drying at 90 ℃ to obtain the modified calcium sulfate whisker.
Wherein the average diameter of the calcium sulfate whisker is 2 mu m, the average length of the calcium sulfate whisker is 35 mu m, and the calcium sulfate whisker is selected from Jiangxi Rong technology Co. The mass concentration of the ethanol solution was 50%.
Examples
TABLE 1 rubber Material raw Material content (Unit: kg)
Example 1
The raw material proportions of the rubber material for the sucker are shown in table 1.
Wherein the nitrile rubber is hydrogenated nitrile rubber 2030H and is selected from Jiangsu Guanfu New Material technology Co., ltd; the phenolic resin is p-tert-butylphenol aldehyde resin, the p-tert-butylphenol aldehyde resin is phenolic resin 2402 and is selected from Shandong chemical industry Co., ltd; the filling oil is naphthenic oil, the naphthenic oil is naphthenic oil KN4010, and is selected from Shanghai Hongzhi chemical industry technology limited company; the accelerator is 2-mercaptobenzothiazole; the average particle size of the carbon black is 150 μm, the carbon black is carbon black N220, and is selected from Guangzhou thick liter New Material Co., ltd; the average granularity of the white carbon black is 70 mu m, the white carbon black is precipitated white carbon black, and the white carbon black is selected from Guangzhou thick liter new materials Co., ltd; the modified calcium sulfate whisker is obtained by treating calcium sulfate whisker with gamma-aminopropyl triethoxysilane, adipoyl diamine and ethyl 3-butenoate, and the modified calcium sulfate whisker is prepared by adopting a preparation example 1.
A preparation method of a rubber material for a sucker comprises the following steps:
s1, adding nitrile rubber into a mixing mill, then adding phenolic resin, and mixing for 3min. Then adding magnesium oxide, N- (1, 3-dimethyl) butyl-N' -phenyl p-phenylenediamine and N- (4-anilinophenyl) methacrylamide, mixing for 13min, and standing for 20min. Then adding stearic acid, mixing for 13min, and standing for 20min. And adding the filling oil, the carbon black, the white carbon black and the modified calcium sulfate whisker, mixing for 13min, and standing for 20min to obtain the mixture.
S2, adding zinc oxide, sulfur and an accelerator into the mixture at the temperature of 60 ℃, carrying out mixing treatment for 13min, and carrying out standing treatment for 15h to obtain a rubber compound.
S3, adding the mixed rubber into a vulcanizing machine under the pressure of 7MPa and the temperature of 160 ℃, and vulcanizing for 50min to obtain the rubber material.
Examples 2 to 3
A rubber material for suction cups was different from example 1 in that the raw material ratios of the rubber materials were different, and the raw material ratios of the rubber materials are shown in Table 1.
Example 4
A rubber material for suction cups is different from example 1 in that the source of modified calcium sulfate whisker in the raw material of the rubber material is different, and the modified calcium sulfate whisker is prepared by using preparation example 2.
Example 5
A rubber material for suction cups is different from example 1 in that the source of modified calcium sulfate whisker in the raw material of the rubber material is different, and the modified calcium sulfate whisker is prepared by using preparation example 3.
Example 6
A rubber material for suction cups is different from example 1 in that the source of modified calcium sulfate whisker in the raw material of the rubber material is different, and the modified calcium sulfate whisker is prepared by using preparation example 4.
Example 7
A rubber material for suction cups is different from example 1 in that the source of modified calcium sulfate whisker in the raw material of the rubber material is different, and the modified calcium sulfate whisker is prepared by using preparation example 5.
Comparative example
Comparative example 1
A rubber material for suction cups was different from example 1 in that N- (4-anilinophenyl) methacrylamide was replaced with N- (1, 3-dimethyl) butyl-N' -phenyl-p-phenylenediamine in the same amount in the raw material of the rubber material.
Comparative example 2
A rubber material for suction cups was different from example 1 in that N- (1, 3-dimethyl) butyl-N' -phenyl-p-phenylenediamine was replaced with N- (4-anilinophenyl) methacrylamide in the same amount in the raw material of the rubber material.
Comparative example 3
A rubber material for suction cups is different from example 1 in that white carbon black and modified calcium sulfate whiskers are replaced with the same amount of carbon black in the raw material of the rubber material.
Comparative example 4
A rubber material for suction cups is different from example 1 in that the modified calcium sulfate whisker is replaced by an equivalent amount of white carbon black in the raw material of the rubber material.
Comparative example 5
A rubber material for suction cups is different from example 1 in that white carbon black is replaced with an equivalent amount of modified calcium sulfate whisker in the raw material of the rubber material.
Performance detection
The rubber materials obtained in examples 1 to 7 and comparative examples 1 to 5 were each taken as a sample, and the following performance tests were carried out on the samples, and the test results are shown in Table 2.
Wherein, according to GB/T531.1-2008, part 1 of the method for testing the indentation hardness of vulcanized rubber or thermoplastic rubber: shore A hardness of the sample was measured by Shore durometer (Shore A hardness).
The tensile strength of the test specimen was measured according to GB/T528-2009 "measurement of tensile stress Strain Properties of vulcanized rubber or thermoplastic rubber".
The thermal aging resistance is achieved by the following method: the test specimen is kept stand for 48 hours and 120 hours at the temperature of 130 ℃, then the tensile strength of the test specimen is detected, and the loss rate of the aged tensile strength is calculated, and the smaller the loss rate of the aged tensile strength is, the better the heat aging resistance of the rubber material is.
According to GB/T30314-2013 "Talbot method for determining the wear resistance of rubber or plastic coated fabrics", the wear amount of a sample is detected, and the smaller the wear amount is, the better the wear resistance of a rubber material is.
TABLE 2 detection results
As can be seen from Table 2, the rubber material of the present application has a high tensile strength of 18.63-23.45MPa, and exhibits high mechanical properties. In addition, the heat-resistant and ageing-resistant alloy has the characteristics of low ageing tensile strength loss rate, 1.52-2.67% of 48-hour ageing tensile strength loss rate and 3.46-4.77% of 120-hour ageing tensile strength loss rate, and high heat resistance and ageing resistance. Meanwhile, the wear resistance is low, the wear resistance is 23-26mg/100r, and the wear resistance is high. The rubber material has the advantages of high mechanical property, high heat aging resistance and high wear resistance through the mutual matching of the raw materials, shows good comprehensive performance and meets market demands.
N- (1, 3-dimethyl) butyl-N' -phenyl was added to the rubber material raw material of comparative example 1; n- (4-anilinophenyl) methacrylamide is added into the rubber material raw material of the comparative example 2; n- (1, 3-dimethyl) butyl-N' -phenyl, N- (4-anilinophenyl) methacrylamide was added simultaneously to the rubber material raw material of example 1. And comparing example 1 with comparative examples 1-2, the aged tensile strength loss rate of example 1 is significantly lower than that of comparative examples 1 and 2, i.e., N- (1, 3-dimethyl) butyl-N' -phenyl, N- (4-anilinophenyl) methacrylamide is added to the raw materials of the rubber materials at the same time, and the heat aging resistance of the rubber materials is increased by utilizing the synergy between the two.
Example 1 and comparative examples 3-5 were compared and are based on comparative example 3. Comparative example 4 compared to comparative example 3, the rubber material was prepared by replacing part of the carbon black with white carbon black; comparative example 5 compared to comparative example 3, the rubber material was prepared by replacing part of the carbon black with modified calcium sulfate whiskers; in example 1, compared with comparative example 3, white carbon black and modified calcium sulfate whisker were used as raw materials of rubber materials to replace part of carbon black. From this, it can be seen that the raw materials of the rubber material are replaced by white carbon black and modified calcium sulfate whisker, and the synergy between the white carbon black and modified calcium sulfate whisker is utilized to obviously increase the tensile strength, reduce the loss rate and the abrasion loss of the aged tensile strength, and make the rubber material exhibit better mechanical properties, thermal aging resistance and abrasion resistance.
The modified calcium sulfate whisker in the embodiment 6 is obtained by treating calcium sulfate whisker with gamma-aminopropyl triethoxysilane; the modified calcium sulfate whisker in the embodiment 7 is obtained by treating calcium sulfate whisker with adipoyl diamine and ethyl 3-butenoate; the modified calcium sulfate whisker in the example 1 is obtained by treating calcium sulfate whisker with gamma-aminopropyl triethoxysilane, adipoyl diamine and ethyl 3-butenoate. From this, it can be seen that the calcium sulfate whisker is treated with gamma-aminopropyl triethoxysilane, adipoyl diamine, and ethyl 3-butenoate, so that the loss rate of aged tensile strength can be reduced, and the tensile strength can be remarkably enhanced, so that the rubber material exhibits better performance.
It should be noted that the above-described embodiments are only for explaining the present application, and do not constitute any limitation to the present application. The present application has been described with reference to exemplary embodiments, but it is understood that the words which have been used are words of description and illustration, rather than words of limitation. Modifications may be made to the present application as defined within the scope of the claims of the present application, and the invention may be modified without departing from the scope and spirit of the present application. Although the present application is described herein with reference to particular methods, materials and embodiments, the present application is not intended to be limited to the particular examples disclosed herein, but rather, the present application is intended to extend to all other methods and applications having the same functionality.
Claims (7)
1. The rubber material for the sucker is characterized in that: the traditional Chinese medicine is mainly prepared from the following raw materials in parts by weight: 80-90 parts of nitrile rubber, 10-20 parts of phenolic resin, 6-10 parts of filling oil, 4-6 parts of zinc oxide, 2-4 parts of magnesium oxide, 1-2 parts of stearic acid, 1-2 parts of accelerator, 1-2 parts of sulfur, 0.5-1.5 parts of N- (1, 3-dimethyl) butyl-N' -phenyl p-phenylenediamine, 0.5-1.5 parts of N- (4-anilinophenyl) methacrylamide, 40-50 parts of carbon black, 10-20 parts of white carbon black and 10-20 parts of modified calcium sulfate whisker; the modified calcium sulfate whisker is obtained by treating calcium sulfate whisker with gamma-aminopropyl triethoxysilane, adipoyl diamine and ethyl 3-butenoate;
the modified calcium sulfate whisker is prepared by the following method:
t1, adding a first part of gamma-aminopropyl triethoxysilane into water, mixing, then adding calcium sulfate whisker, carrying out ultrasonic treatment for 20-40min, stirring for 3-5h, filtering, washing and drying to obtain silane grafted calcium sulfate whisker;
adding silane grafted calcium sulfate whisker into ethanol at 60-70 ℃, carrying out ultrasonic treatment for 20-40min, adding first part of ethyl 3-butenoate, carrying out stirring treatment for 9-11h, adding first part of adipoyl diamine, carrying out stirring treatment for 9-11h, adding second part of ethyl 3-butenoate, carrying out stirring treatment for 9-11h, adding second part of adipoyl diamine, carrying out stirring treatment for 9-11h, adding third part of ethyl 3-butenoate, carrying out stirring treatment for 9-11h, adding second part of gamma-aminopropyl triethoxysilane, carrying out stirring treatment for 9-11h, filtering, washing and drying to obtain modified calcium sulfate whisker;
the weight ratio of the calcium sulfate whisker to the first gamma-aminopropyl triethoxysilane to the first 3-ethyl butenoate to the first adipoyl diamine to the second 3-ethyl butenoate to the second adipoyl diamine to the third 3-ethyl butenoate to the second gamma-aminopropyl triethoxysilane is (18-22): (4-6): (4.5-5.5): (5.5-7.5): (9-11): (11-15): (18-22): (35-45);
in the preparation of the modified calcium sulfate whisker, the first part of ethyl 3-butenoate is added into ethanol in a dropwise manner, and the dropwise addition is completed within 1-2 hours; adding the first part of adipoyl diamine into ethanol in a dropwise manner, and finishing dropwise addition within 1-2 hours; adding the second part of ethyl 3-butenoate into ethanol in a dropwise manner, and finishing dropwise addition within 1-2 h; adding the second part of adipoyl diamine into ethanol in a dropwise manner, and finishing dropwise addition within 1-2 hours; adding the third part of ethyl 3-butenoate into ethanol in a dropwise manner, and finishing dropwise addition within 1-2 h; the second part of gamma-aminopropyl triethoxysilane is added into ethanol in a dropwise manner, and the dropwise addition is completed within 1-2 h.
2. A rubber material for suction cups as claimed in claim 1, wherein: the average diameter of the calcium sulfate whisker is 1-5 mu m, and the average length of the calcium sulfate whisker is 10-50 mu m.
3. A rubber material for suction cups as claimed in claim 1, wherein: the average particle size of the carbon black is 100-200 mu m; the average granularity of the white carbon black is 50-100 mu m.
4. A rubber material for suction cups as claimed in claim 1, wherein: the filling oil is one or more of naphthenic oil, aromatic oil and paraffinic oil.
5. A rubber material for suction cups as claimed in claim 1, wherein: the accelerator is one or more of 2-thiol benzothiazole, 1, 2-ethylene thiourea and N-cyclohexyl-2-benzothiazole sulfenamide.
6. A method for producing the rubber material for suction cups as claimed in any one of claims 1 to 5, characterized in that: the method comprises the following steps:
s1, adding phenolic resin into nitrile rubber, mixing for 2-4min, then adding magnesium oxide, N- (1, 3-dimethyl) butyl-N' -phenyl p-phenylenediamine and N- (4-anilinophenyl) methacrylamide, mixing for 10-15min, and standing for 15-25min; adding stearic acid, mixing for 10-15min, and standing for 15-25min; adding filling oil, carbon black, white carbon black and modified calcium sulfate whisker, mixing for 10-15min, and standing for 15-25min to obtain a mixture;
s2, adding zinc oxide, sulfur and an accelerator into the mixture at the temperature of 55-65 ℃, carrying out mixing treatment for 15-20min, and standing for 13-18h to obtain a mixed rubber;
s3, vulcanizing the rubber compound for 45-55min under the pressure of 6-8MPa and the temperature of 155-165 ℃ to obtain the rubber material.
7. The utility model provides a on-vehicle rubber suction cup which characterized in that: which is prepared by using the rubber material for suction cups according to any one of claims 1 to 5.
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| CN106431454A (en) * | 2016-09-18 | 2017-02-22 | 广州大学 | Aerogel composite material containing calcium sulfate whiskers and clay and preparation method of aerogel composite material |
| WO2018130194A1 (en) * | 2017-01-13 | 2018-07-19 | 杭州星庐科技有限公司 | Rubber composite, processing method, rubber products applying composite, and manufacturing method |
| CN110423326A (en) * | 2019-07-01 | 2019-11-08 | 陕西科技大学 | A kind of wastewaters with modified calcium sulfate whiskers/polyurethane composite foam material and its preparation process |
| CN112778590A (en) * | 2019-11-01 | 2021-05-11 | 中国石油化工股份有限公司 | Rubber composition, preparation method and application thereof, rubber composition for tire treads and preparation method thereof |
| CN114426709A (en) * | 2020-10-09 | 2022-05-03 | 中国石油化工股份有限公司 | Rubber composition based on nitrile rubber and ethylene propylene diene monomer, application of rubber composition, vulcanized rubber, preparation method of vulcanized rubber and application of vulcanized rubber |
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|---|---|---|---|---|
| CN106431454A (en) * | 2016-09-18 | 2017-02-22 | 广州大学 | Aerogel composite material containing calcium sulfate whiskers and clay and preparation method of aerogel composite material |
| WO2018130194A1 (en) * | 2017-01-13 | 2018-07-19 | 杭州星庐科技有限公司 | Rubber composite, processing method, rubber products applying composite, and manufacturing method |
| CN110423326A (en) * | 2019-07-01 | 2019-11-08 | 陕西科技大学 | A kind of wastewaters with modified calcium sulfate whiskers/polyurethane composite foam material and its preparation process |
| CN112778590A (en) * | 2019-11-01 | 2021-05-11 | 中国石油化工股份有限公司 | Rubber composition, preparation method and application thereof, rubber composition for tire treads and preparation method thereof |
| CN114426709A (en) * | 2020-10-09 | 2022-05-03 | 中国石油化工股份有限公司 | Rubber composition based on nitrile rubber and ethylene propylene diene monomer, application of rubber composition, vulcanized rubber, preparation method of vulcanized rubber and application of vulcanized rubber |
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