CN105504604A - Tear-resistant rubber gasket for motorcycle engine - Google Patents
Tear-resistant rubber gasket for motorcycle engine Download PDFInfo
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- CN105504604A CN105504604A CN201511015259.4A CN201511015259A CN105504604A CN 105504604 A CN105504604 A CN 105504604A CN 201511015259 A CN201511015259 A CN 201511015259A CN 105504604 A CN105504604 A CN 105504604A
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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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
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Gasket Seals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a tear-resistant rubber gasket for a motorcycle engine. The tear-resistant rubber gasket for the motorcycle engine is prepared from the following raw materials in parts by weight: 25 to 35 parts of methyl vinyl silicone rubber, 25 to 35 parts of fluororubber 23, 10 to 25 parts of butadiene styrene rubber, 46 to 56 parts of modified graphite, 0.2 to 0.6 part of nano zinc oxide, 42 to 52 parts of acetylene black carbon, 6 to 17 parts of gypsum, 3 to 10 parts of xylogen, 5 to 13 parts of titanium pigments, 10 to 18 parts of sepiolite, 1 to 3 parts of triallyl isocyanurate, 0.5 to 1.2 parts of dicumyl peroxide, 1.5 to 2.5 parts of N,N'-m-phenylene dimaleimide, 1 to 1.8 parts of vulcanization accelerators NA-22, 1 to 1.5 parts of N-methylenecarboxyl-2-benzothiazole sulfenamide, 1 to 1.5 parts of stearic acids, 1 to 1.5 parts of disproportionated rosin, and 1 to 1.5 parts of anti-aging agents RD. The tear-resistant rubber gasket for the motorcycle engine is high in hardness, good in heat stability and ageing resistance, and excellent in tear resistance.
Description
Technical field
The present invention relates to field of rubber technology, particularly relate to a kind of tear-resistant motorcycle engine rubber sheet gasket.
Background technology
Motorcycle engine rubber sheet gasket is owing to being subject to the comprehensive action of various extraneous factor, easy generation is aging, performance gradually changes, particularly unsaturated carbon chains rubber, easily be subject to the invasion and attack of heat, oxygen and ozone and cause rubber molecule structure to change, especially high temperature is in for a long time and rugged road environment at motorcycle engine rubber sheet gasket, especially in summer hot environment, motorcycle engine rubber sheet gasket degradation is obvious, current motorcycle engine rubber sheet gasket thermostability, hardness, tear-resistant and ageing-resistant performance also can not meet demand.
Summary of the invention
The present invention proposes a kind of tear-resistant motorcycle engine rubber sheet gasket, hardness is high, thermally-stabilised, ageing resistance good, tear-resistant excellent performance.
The tear-resistant motorcycle engine rubber sheet gasket of one that the present invention proposes, its raw material comprises by weight: methyl vinyl silicone rubber 25 ~ 35 parts, 23 25 ~ 35 parts, type fluorine glue, 10 ~ 25 parts, styrene-butadiene rubber(SBR), modified graphite 46 ~ 56 parts, nano zine oxide 0.2 ~ 0.6 part, Shawinigan black 42 ~ 52 parts, 6 ~ 17 parts, gypsum, 3 ~ 10 parts, xylogen, titanium dioxide 5 ~ 13 parts, sepiolite 10 ~ 18 parts, cyanacrylate 1 ~ 3 part, dicumyl peroxide 0.5 ~ 1.2 part, N, N '-penylene bismaleimides 1.5 ~ 2.5 parts, accelerator NA-22 1 ~ 1.8 part, N-methylene radical carboxyl-2-[4-morpholinodithio sulphenamide 1 ~ 1.5 part, stearic acid 1 ~ 1.5 part, nilox resin 1 ~ 1.5 part, anti-aging agent RD 1 ~ 1.5 part.
Preferably, modified graphite adopts following technique to prepare: after Graphite Powder 99, SODIUMNITRATE, sulphuric acid soln mixing, ice bath stirs, add potassium permanganate and continue ice bath stirring, add deionized water intensification and stir, centrifugal, washing, dry, then add deionized water, Sodium salts humic acids stirring, then add Sodium sulfanilate, sodium hydroxide, water mixes, heat up, add lanthanum fluoride and stir, add hydrazine hydrate solution to continue to stir, filter, washing, drying, obtains modified graphite.
Preferably, in the preparation technology of modified graphite, the weight ratio of SODIUMNITRATE, sulphuric acid soln, potassium permanganate is 20 ~ 40:150 ~ 190:15 ~ 35; Wherein the massfraction of sulphuric acid soln is 75 ~ 85wt%.
Preferably, in the preparation technology of modified graphite, the weight ratio of Sodium salts humic acids, Graphite Powder 99, Sodium sulfanilate, lanthanum fluoride is 1 ~ 5:30 ~ 50:0.5 ~ 2.5:0.1 ~ 0.4.
Preferably, modified graphite adopts following technique to prepare: by weight by 30 ~ 50 parts of Graphite Powder 99s, 20 ~ 40 parts of SODIUMNITRATE, 150 ~ 190 parts of massfractions are after the sulphuric acid soln mixing of 75 ~ 85wt%, ice bath stirs 60 ~ 140min, add 15 ~ 35 parts of potassium permanganate and continue ice bath stirring 10 ~ 30min, add 55 ~ 68 parts of deionized waters and be warming up to 60 ~ 70 DEG C of stirring 15 ~ 35min, centrifugal, washing, dry, add 60 ~ 100 parts of deionized waters again, 1 ~ 5 part of Sodium salts humic acids stirs 30 ~ 75min, whipping temp is 55 ~ 75 DEG C, then 0.5 ~ 2.5 part of Sodium sulfanilate is added, 1 ~ 4 part of sodium hydroxide, 60 ~ 120 parts of water mix, be warming up to 84 ~ 89 DEG C, add 0.1 ~ 0.4 part of lanthanum fluoride and stir 70 ~ 100min, hydrazine hydrate solution continuation stirring 40 ~ 80h that 0.08 ~ 0.12 part of massfraction is 60 ~ 68wt% is added with the speed of 0.0001 ~ 0.0003 part/h, filter, washing, dry, obtain modified graphite.
Preferably, the weight ratio of modified graphite, methyl vinyl silicone rubber, 23 type fluorine glue, styrene-butadiene rubber(SBR) is 50 ~ 53:26 ~ 30:30 ~ 32:16 ~ 20.
Preferably, the weight ratio of modified graphite, nano zine oxide, Shawinigan black, gypsum, xylogen, titanium dioxide, sepiolite is 50 ~ 53:0.3 ~ 0.5:46 ~ 50:12 ~ 15:5 ~ 8:8 ~ 11:12 ~ 15.
Preferably, described tear-resistant motorcycle engine rubber sheet gasket, its raw material comprises by weight: methyl vinyl silicone rubber 26 ~ 30 parts, 23 30 ~ 32 parts, type fluorine glue, 16 ~ 20 parts, styrene-butadiene rubber(SBR), modified graphite 50 ~ 53 parts, nano zine oxide 0.3 ~ 0.5 part, Shawinigan black 46 ~ 50 parts, 12 ~ 15 parts, gypsum, 5 ~ 8 parts, xylogen, titanium dioxide 8 ~ 11 parts, sepiolite 12 ~ 15 parts, cyanacrylate 1.5 ~ 2 parts, dicumyl peroxide 0.8 ~ 1 part, N, N '-penylene bismaleimides 2.1 ~ 2.4 parts, accelerator NA-22 1.2 ~ 1.5 parts, N-methylene radical carboxyl-2-[4-morpholinodithio sulphenamide 1.2 ~ 1.4 parts, stearic acid 1.1 ~ 1.3 parts, nilox resin 1.2 ~ 1.4 parts, anti-aging agent RD 1.2 ~ 1.4 parts.
Above-mentioned motorcycle engine rubber sheet gasket adopts the preparation technology of General Purpose Rubber material to be prepared.
The present invention adopts 23 type fluorine glue and styrene-butadiene rubber(SBR) and uses, double bond in styrene-butadiene rubber(SBR) structure and the equal torpescence of chlorine atom, Stability Analysis of Structures, both cooperatively interact and make ageing-resistant performance of the present invention good, thermal stability is excellent, methyl vinyl silicone rubber, 23 type fluorine glue, styrene-butadiene rubber(SBR) can interpenetrate with xylogen, crosslinked, with cyanacrylate, dicumyl peroxide, N, a N '-penylene bismaleimides, vulcanization accelerator NA ~ 22, N-methylene radical carboxyl-2-[4-morpholinodithio sulphenamide carries out collaborative crosslinked, make hardness of the present invention high, tear-resistant performance is fabulous, xylogen and modified graphite, nano zine oxide, Shawinigan black, gypsum, titanium dioxide, sepiolite cooperatively interacts, not only fillibility is fabulous, significantly reduce costs, hardness and tear-resistant performance strengthen further, and and stearic acid, nilox resin can produce synergy, under the prerequisite ensureing hardness, make the present invention's not frangibility.In the preparation technology of modified graphite, Graphite Powder 99 is after SODIUMNITRATE, sulphuric acid soln, potassium permanganate process, its laminated structure is rich in the groups such as hydroxyl, carboxyl, carbonyl, epoxy group(ing), wetting ability is extremely strong, and Sodium salts humic acids is lamella macromolecular structure, and be rich in the groups such as carboxyl, phenolic hydroxyl group, hydroxyl, not only can organically combine with Graphite Powder 99, very easily combine with the lanthanum atom of the primary amino of sodium sulfanilate, sulfonic group and lanthanum fluoride simultaneously; The carboxyl at Sodium salts humic acids molecule edge with electric charge, due to intermolecular electrostatic repulsion, can not reunite, stability is higher, fabulous with modified graphite, methyl vinyl silicone rubber, 23 type fluorine glue, styrene-butadiene rubber(SBR) mixing uniformity, be conducive to after interaction strengthening network structure of the present invention, simultaneously bonding force is comparatively strong, make hardness of the present invention and tear-resistant intensity very excellent; And sodium sulfanilate be combined with lanthanum fluoride after product and anti-aging agent RD act synergistically, effectively can stop free radical, delay free chain reaction in weathering process of the present invention, fabulous to the hot oxygen protective effect of cross-linked rubber, make ageing-resistant performance of the present invention very excellent.
Embodiment
Embodiment 1
A kind of tear-resistant motorcycle engine rubber sheet gasket, its raw material comprises by weight: methyl vinyl silicone rubber 25 parts, 23 35 parts, type fluorine glue, 10 parts, styrene-butadiene rubber(SBR), modified graphite 56 parts, nano zine oxide 0.2 part, Shawinigan black 52 parts, 6 parts, gypsum, 10 parts, xylogen, titanium dioxide 5 parts, sepiolite 18 parts, cyanacrylate 1 part, dicumyl peroxide 1.2 parts, N, N '-penylene bismaleimides 1.5 parts, accelerator NA-22 1.8 parts, N-methylene radical carboxyl-2-[4-morpholinodithio sulphenamide 1 part, stearic acid 1.5 parts, nilox resin 1 part, anti-aging agent RD 1.5 parts.
Embodiment 2
A kind of tear-resistant motorcycle engine rubber sheet gasket, its raw material comprises by weight: methyl vinyl silicone rubber 35 parts, 23 25 parts, type fluorine glue, 25 parts, styrene-butadiene rubber(SBR), modified graphite 46 parts, nano zine oxide 0.6 part, Shawinigan black 42 parts, 17 parts, gypsum, 3 parts, xylogen, titanium dioxide 13 parts, sepiolite 10 parts, cyanacrylate 3 parts, dicumyl peroxide 0.5 part, N, N '-penylene bismaleimides 2.5 parts, accelerator NA-22 1 part, N-methylene radical carboxyl-2-[4-morpholinodithio sulphenamide 1.5 parts, stearic acid 1 part, nilox resin 1.5 parts, anti-aging agent RD 1 part.
Embodiment 3
A kind of tear-resistant motorcycle engine rubber sheet gasket, its raw material comprises by weight: methyl vinyl silicone rubber 30 parts, 23 30 parts, type fluorine glue, 20 parts, styrene-butadiene rubber(SBR), modified graphite 50 parts, nano zine oxide 0.5 part, Shawinigan black 46 parts, 15 parts, gypsum, 5 parts, xylogen, titanium dioxide 11 parts, sepiolite 12 parts, cyanacrylate 2 parts, dicumyl peroxide 0.8 part, N, N '-penylene bismaleimides 2.4 parts, accelerator NA-22 1.2 parts, N-methylene radical carboxyl-2-[4-morpholinodithio sulphenamide 1.4 parts, stearic acid 1.1 parts, nilox resin 1.4 parts, anti-aging agent RD 1.2 parts.
Modified graphite adopts following technique to prepare: by weight by 50 parts of Graphite Powder 99s, 20 parts of SODIUMNITRATE, 190 parts of massfractions are after the sulphuric acid soln mixing of 75wt%, ice bath stirs 140min, add 15 parts of potassium permanganate and continue ice bath stirring 30min, add 55 parts of deionized waters and be warming up to 70 DEG C of stirring 15min, centrifugal, washing, dry, add 100 parts of deionized waters again, 1 part of Sodium salts humic acids stirs 75min, whipping temp is 55 DEG C, then 2.5 parts of Sodium sulfanilates are added, 1 part of sodium hydroxide, 120 parts of water mix, be warming up to 84 DEG C, add 0.4 part of lanthanum fluoride and stir 70min, the hydrazine hydrate solution continuation stirring 40h that 0.08 part of massfraction is 68wt% is added with the speed of 0.0003 part/h, filter, washing, dry, obtain modified graphite.
Embodiment 4
A kind of tear-resistant motorcycle engine rubber sheet gasket, its raw material comprises by weight: methyl vinyl silicone rubber 26 parts, 23 32 parts, type fluorine glue, 16 parts, styrene-butadiene rubber(SBR), modified graphite 53 parts, nano zine oxide 0.3 part, Shawinigan black 50 parts, 12 parts, gypsum, 8 parts, xylogen, titanium dioxide 8 parts, sepiolite 15 parts, cyanacrylate 1.5 parts, dicumyl peroxide 1 part, N, N '-penylene bismaleimides 2.1 parts, accelerator NA-22 1.5 parts, N-methylene radical carboxyl-2-[4-morpholinodithio sulphenamide 1.2 parts, stearic acid 1.3 parts, nilox resin 1.2 parts, anti-aging agent RD 1.4 parts.
Modified graphite adopts following technique to prepare: by weight by 30 parts of Graphite Powder 99s, 40 parts of SODIUMNITRATE, 150 parts of massfractions are after the sulphuric acid soln mixing of 85wt%, ice bath stirs 60min, add 35 parts of potassium permanganate and continue ice bath stirring 10min, add 68 parts of deionized waters and be warming up to 60 DEG C of stirring 35min, centrifugal, washing, dry, add 60 parts of deionized waters again, 5 parts of Sodium salts humic acidss stir 30min, whipping temp is 75 DEG C, then 0.5 part of Sodium sulfanilate is added, 4 parts of sodium hydroxide, 60 parts of water mix, be warming up to 89 DEG C, add 0.1 part of lanthanum fluoride and stir 100min, the hydrazine hydrate solution continuation stirring 80h that 0.12 part of massfraction is 60wt% is added with the speed of 0.0001 part/h, filter, washing, dry, obtain modified graphite.
Embodiment 5
A kind of tear-resistant motorcycle engine rubber sheet gasket, its raw material comprises by weight: methyl vinyl silicone rubber 28 parts, 23 31 parts, type fluorine glue, 18 parts, styrene-butadiene rubber(SBR), modified graphite 52 parts, nano zine oxide 0.4 part, Shawinigan black 48 parts, 13 parts, gypsum, 6 parts, xylogen, titanium dioxide 10 parts, sepiolite 13 parts, cyanacrylate 1.8 parts, dicumyl peroxide 0.9 part, N, N '-penylene bismaleimides 2.2 parts, accelerator NA-22 1.4 parts, N-methylene radical carboxyl-2-[4-morpholinodithio sulphenamide 1.3 parts, stearic acid 1.2 parts, nilox resin 1.3 parts, anti-aging agent RD 1.3 parts.
Modified graphite adopts following technique to prepare: by weight by 40 parts of Graphite Powder 99s, 30 parts of SODIUMNITRATE, 170 parts of massfractions are after the sulphuric acid soln mixing of 80wt%, ice bath stirs 100min, add 25 parts of potassium permanganate and continue ice bath stirring 20min, add 60 parts of deionized waters and be warming up to 65 DEG C of stirring 25min, centrifugal, washing, dry, add 80 parts of deionized waters again, 3 parts of Sodium salts humic acidss stir 50min, whipping temp is 65 DEG C, then 1.5 parts of Sodium sulfanilates are added, 3 parts of sodium hydroxide, 90 parts of water mix, be warming up to 85 DEG C, add 0.3 part of lanthanum fluoride and stir 80min, the hydrazine hydrate solution continuation stirring 60h that 0.1 part of massfraction is 64wt% is added with the speed of 0.0002 part/h, filter, washing, dry, obtain modified graphite.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (8)
1. a tear-resistant motorcycle engine rubber sheet gasket, it is characterized in that, its raw material comprises by weight: methyl vinyl silicone rubber 25 ~ 35 parts, 23 25 ~ 35 parts, type fluorine glue, 10 ~ 25 parts, styrene-butadiene rubber(SBR), modified graphite 46 ~ 56 parts, nano zine oxide 0.2 ~ 0.6 part, Shawinigan black 42 ~ 52 parts, 6 ~ 17 parts, gypsum, 3 ~ 10 parts, xylogen, titanium dioxide 5 ~ 13 parts, sepiolite 10 ~ 18 parts, cyanacrylate 1 ~ 3 part, dicumyl peroxide 0.5 ~ 1.2 part, N, N '-penylene bismaleimides 1.5 ~ 2.5 parts, accelerator NA-22 1 ~ 1.8 part, N-methylene radical carboxyl-2-[4-morpholinodithio sulphenamide 1 ~ 1.5 part, stearic acid 1 ~ 1.5 part, nilox resin 1 ~ 1.5 part, anti-aging agent RD 1 ~ 1.5 part.
2. tear-resistant motorcycle engine rubber sheet gasket according to claim 1, it is characterized in that, modified graphite adopts following technique to prepare: by Graphite Powder 99, SODIUMNITRATE, after sulphuric acid soln mixing, ice bath stirs, add potassium permanganate and continue ice bath stirring, add deionized water intensification to stir, centrifugal, washing, dry, add deionized water again, Sodium salts humic acids stirs, then Sodium sulfanilate is added, sodium hydroxide, water mixes, heat up, add lanthanum fluoride to stir, add hydrazine hydrate solution to continue to stir, filter, washing, dry, obtain modified graphite.
3. tear-resistant motorcycle engine rubber sheet gasket according to claim 2, is characterized in that, in the preparation technology of modified graphite, the weight ratio of SODIUMNITRATE, sulphuric acid soln, potassium permanganate is 20 ~ 40:150 ~ 190:15 ~ 35; Wherein the massfraction of sulphuric acid soln is 75 ~ 85wt%.
4. tear-resistant motorcycle engine rubber sheet gasket according to claim 2, it is characterized in that, in the preparation technology of modified graphite, the weight ratio of Sodium salts humic acids, Graphite Powder 99, Sodium sulfanilate, lanthanum fluoride is 1 ~ 5:30 ~ 50:0.5 ~ 2.5:0.1 ~ 0.4.
5. the tear-resistant motorcycle engine rubber sheet gasket according to any one of claim 1-4, it is characterized in that, modified graphite adopts following technique to prepare: by weight by 30 ~ 50 parts of Graphite Powder 99s, 20 ~ 40 parts of SODIUMNITRATE, 150 ~ 190 parts of massfractions are after the sulphuric acid soln mixing of 75 ~ 85wt%, ice bath stirs 60 ~ 140min, add 15 ~ 35 parts of potassium permanganate and continue ice bath stirring 10 ~ 30min, add 55 ~ 68 parts of deionized waters and be warming up to 60 ~ 70 DEG C of stirring 15 ~ 35min, centrifugal, washing, dry, add 60 ~ 100 parts of deionized waters again, 1 ~ 5 part of Sodium salts humic acids stirs 30 ~ 75min, whipping temp is 55 ~ 75 DEG C, then 0.5 ~ 2.5 part of Sodium sulfanilate is added, 1 ~ 4 part of sodium hydroxide, 60 ~ 120 parts of water mix, be warming up to 84 ~ 89 DEG C, add 0.1 ~ 0.4 part of lanthanum fluoride and stir 70 ~ 100min, hydrazine hydrate solution continuation stirring 40 ~ 80h that 0.08 ~ 0.12 part of massfraction is 60 ~ 68wt% is added with the speed of 0.0001 ~ 0.0003 part/h, filter, washing, dry, obtain modified graphite.
6. the tear-resistant motorcycle engine rubber sheet gasket according to any one of claim 1-5, is characterized in that, the weight ratio of modified graphite, methyl vinyl silicone rubber, 23 type fluorine glue, styrene-butadiene rubber(SBR) is 50 ~ 53:26 ~ 30:30 ~ 32:16 ~ 20.
7. the tear-resistant motorcycle engine rubber sheet gasket according to any one of claim 1-6, it is characterized in that, the weight ratio of modified graphite, nano zine oxide, Shawinigan black, gypsum, xylogen, titanium dioxide, sepiolite is 50 ~ 53:0.3 ~ 0.5:46 ~ 50:12 ~ 15:5 ~ 8:8 ~ 11:12 ~ 15.
8. the tear-resistant motorcycle engine rubber sheet gasket according to any one of claim 1-7, it is characterized in that, its raw material comprises by weight: methyl vinyl silicone rubber 26 ~ 30 parts, 23 30 ~ 32 parts, type fluorine glue, 16 ~ 20 parts, styrene-butadiene rubber(SBR), modified graphite 50 ~ 53 parts, nano zine oxide 0.3 ~ 0.5 part, Shawinigan black 46 ~ 50 parts, 12 ~ 15 parts, gypsum, 5 ~ 8 parts, xylogen, titanium dioxide 8 ~ 11 parts, sepiolite 12 ~ 15 parts, cyanacrylate 1.5 ~ 2 parts, dicumyl peroxide 0.8 ~ 1 part, N, N '-penylene bismaleimides 2.1 ~ 2.4 parts, accelerator NA-22 1.2 ~ 1.5 parts, N-methylene radical carboxyl-2-[4-morpholinodithio sulphenamide 1.2 ~ 1.4 parts, stearic acid 1.1 ~ 1.3 parts, nilox resin 1.2 ~ 1.4 parts, anti-aging agent RD 1.2 ~ 1.4 parts.
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CN201511015259.4A CN105504604A (en) | 2015-12-31 | 2015-12-31 | Tear-resistant rubber gasket for motorcycle engine |
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CN201511015259.4A CN105504604A (en) | 2015-12-31 | 2015-12-31 | Tear-resistant rubber gasket for motorcycle engine |
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Application publication date: 20160420 |