CN104262869A - Fluororubber material resistant to strong acids and strong bases, and preparation method of fluororubber material - Google Patents
Fluororubber material resistant to strong acids and strong bases, and preparation method of fluororubber material Download PDFInfo
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
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- C08K5/098—Metal salts of carboxylic acids
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34924—Triazines containing cyanurate groups; Tautomers thereof
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- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
- C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Abstract
The invention relates to a fluororubber material resistant to strong acids and strong bases, and a preparation method of the fluororubber material. The fluororubber material comprises the following components in parts by weight: 100 parts of fluororubber, 1-3 parts of a heat-resisting agent, 3-6 parts of an active agent, 1-3 parts of a processing aid, 20-30 parts of a reinforcing and filling agent, and 2-3 parts of a vulcanizing agent. The fluororubber material resistant to strong acid and strong base, which is prepared with the method, has excellent resistance to sodium hydroxide, sulfuric acid, nitric acid and other strong acids and strong bases, hydrogen sulfide, sulfur dioxide and other corrosive gases, and water vapor higher than 200 DEG C, can be widely used in field having very harsh working conditions, such as chemical engineering, petroleum engineering, energy conservation and environmental protection, and the like, and can greatly reduce the maintenance frequency and lower the maintenance cost.
Description
Technical field
The invention belongs to technical field of rubber material, viton material relating to a kind of strong acid-base resistance and preparation method thereof.
Background technology
Rubber seal product has a wide range of applications along with the development of society and science and technology in industrial, agriculture, civilian and military affairs.The use occasion of rubber seal product also varies, such as at chemical industry, electronics, petroleum drilling and mining, in the industries such as machinery and iron and steel, contain in environment for use and use a large amount of acid, the solution such as alkali, can cause like this in the Working environment of rubber part containing acid mist, alkali mist, and there is acid solution unavoidably, alkali lye is splashed on rubber part, rubber item can be immersed in acid solution or alkali lye even sometimes, therefore acid is used, alkali place must must meet acid-proof alkaline with rubber part, otherwise while rubber part damages, very large impact is brought on working properly, the more serious social disaster perhaps can brought more.So in order to improve the acid-proof alkaline with the rubber part used in acid or alkali environment, many research workers find various approach and go to improve this performance.Chinese utility model patent CN 202996361 U discloses a kind of strong acid-base resistance resist bending flexible cable, be made up of cable core and oversheath, described cable core forms by many insulated wire cores are stranded, and insulated wire cores is made up of reinforced conductor and the insulation ethylene-propylene rubber layer be extruded in outside reinforced conductor; Reinforced conductor is by thin copper wire and aramid fiber yarn is stranded forms; Space between insulated wire cores is filled by ethylene-propylene rubber packing layer; Viton oversheath is extruded with outside insulated wire cores and packing layer.This utility model advantage is: structure is simple, manufactures easily; Adopt thin copper wire due to conductor and aramid fiber yarn is stranded forms, oversheath adopts viton, and therefore cable is softer, is very suitable for the mechanism frequently reciprocated.Oversheath adopts viton, and therefore cable has the characteristic of strong acid-base resistance.This utility model patent mainly improves the resistance to acids and bases of electric wire from structural point, specifically do not propose concrete formula and the production technique of sheath viton.As everyone knows, the acid resistance of viton and its technique and very large relation of filling a prescription.Chinese invention patent CN 103910942 A, this invention relates to a kind of high temperature resistant strong acid-base resistance lamination conveyor belt surface rubber cover and preparation method thereof, is prepared: ethylene propylene rubber, chlorosulfonated polyethylene rubber, liquid second third glue, zinc oxide, magnesium oxide, dicumyl peroxide DCP, SULPHUR POWDER, stearic acid, barium sulfate, N330 carbon black, N550, potter's clay, paraffin oil, polyethylene wax, terpine resin, HY209 resin, antioxidant MB, antioxidant MC, anti-aging agent RD by following raw material.High temperature resistant strong acid-base resistance lamination conveyor belt surface rubber cover is obtained after above-mentioned raw materials is mixing through two sections.This glue has excellent heat resistanceheat resistant strong acid alkalescence, ozone resistance and crack resistance.This invention is high temperature resistant, and strong acid-base resistance lamination conveyor belt surface rubber cover meets the special high temperature resistant strong acid-base material of conveying to the requirement of resistance to chemical attack.The phenomenon occurring premature ageing can be avoided.Chinese invention patent CN 102408595 A acid and alkali-resistance rubber adhesive disclosing a kind of cylinder and preparation method thereof.The roller core outer cladding acid and alkali-resistance rubber adhesive of described cylinder, described acid and alkali-resistance rubber adhesive comprises following component and weight part: neoprene latex 70, natural gum 30, vulcanizing agent 8 ~ 10, promotor 0.3 ~ 1, promoting agent 1 ~ 2, reinforcing filler 40 ~ 70, plasticising tenderizer 10 ~ 15, anti-aging agent 3 ~ 4, special Synergist S-421 95 10 ~ 25.Described preparation method comprises sizing material preparation, roller core process, shaping, sulfuration.Compared with prior art, this acid and alkali-resistance rubber adhesive, by adopting the material preparation of new formula, can keep physical and mechanical properties originally for a long time, thus converyor roller is used for a long time in soda acid and pharmaceutical chemicals environment under the effect of soda acid body lotion.Another Chinese invention patent CN 103540034 A openly invents and relates to a kind of acid and alkali-resistance rubber seal, comprises following component, 100 parts, ethylene-propylene rubber(EPR), neoprene latex 50 parts, 7 parts, zinc oxide, 3 parts, magnesium oxide, butadiene-styrene rubber 25 parts, reinforcing filler 2 parts.Described rubber pinch pipe also comprises 4 parts, anti-aging agent.Described rubber pinch pipe also comprises 4-4'-dimorpholinyl disulfide 1 part.This resistance to high soda acid rubber seal that this invention provides, use the ethylene-propylene rubber(EPR) to having good anti-resistance to ability containing soda acid lubricating oil, in vulcanization system and filler systems, make the reliable proportioning of science more make batching play the normal working hours of the better prolonged mechanical equipment of synergy.Although these inventions above-mentioned are from different material category, preparation technology and fill a prescription open and invented the rubber part of acid and alkali-resistance, but they select starting material itself high temperature resistant, strong acid-base resistance is much more inferior than viton, comparatively limited to the resistance of the severe rugged environments such as the water vapour of the corrosive gasess such as the strong acid and strong bases such as sodium hydroxide, sulfuric acid, nitric acid, hydrogen sulfide, sulfurous gas and more than 200 DEG C, so acid and alkali-resistance rubber part disclosed in existing invention and technical information, the occasion used limits by self material, and application is not very extensive.
Summary of the invention
In order to solve the problem, the present invention, while raising rubber part acid-proof alkaline, develops a kind of viton material being widely used in the harsher field of the operating modes such as chemical industry, petroleum drilling and mining, energy-conserving and environment-protective.
The present invention is achieved through the following technical solutions: this viton material composition is specially in mass fraction: viton 100 parts, heat-resistant agent 1 ~ 3 part, promoting agent 3 ~ 6 parts, processing aid 1 ~ 3 part, reinforcing filler 20 ~ 30 parts, vulcanizing agent 2 ~ 3 parts.
The Oil repellent of described viton counts 57% with mass percentage, mooney viscosity ML
1+10be 95 ~ 100 under 100 DEG C of test conditions.
Wherein, described heat-resistant agent is: any one in cerium oxide or plumbous oxide inner complex.
Wherein, described processing aid is: Zinic stearas or sodium stearate.
Wherein, described reinforcing filler is: any one or two kinds in N990 carbon black, ultra-fine barium sulfate are also used.
Wherein, described promoting agent is triallylcyanurate or cyanacrylate.
Wherein, described vulcanizing agent is: 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane or two tert-butyl peroxy base-diisopropyl benzene.
The preparation method of this elastomeric material: adopt mill processing, viton is dropped into mill pressing 2 ~ 3min, first add heat-resistant agent, promoting agent, processing aid and the mixing 4 ~ 6min of 1/3rd reinforcing fillers, then the mixing 5 ~ 7min of residue reinforcing filler is added, finally add the mixing 2 ~ 3min of vulcanizing agent, in 0.5mm roll spacing thin-pass 8 ~ 10 times, 4mm roll spacing bottom sheet cools, and mixing process bowl temperature is 70 ~ 85 DEG C; More than 24h thin-pass 10 ~ 12 times in mill again parked by film, and the cooling of 4mm roll spacing bottom sheet is stand-by.Its vulcanization parameters is first cure temperature 175 DEG C, and curing time is 15min; Second segment curing temperature is 200 DEG C, and curing time is 8 h.
The viton material of strong acid-base resistance prepared by the present invention, all has excellent resistance to the water vapour of the corrosive gasess such as the strong acid and strong bases such as sodium hydroxide, sulfuric acid, nitric acid, hydrogen sulfide, sulfurous gas and more than 200 DEG C; Application Areas and use range broadness, can be widely used in the field that the operating modes such as chemical industry, petroleum drilling and mining, energy-conserving and environment-protective are harsher; Because sealing reliability significantly promotes, the maintenance frequency can be greatly reduced, save maintenance cost.
Embodiment
Below by embodiment, the present invention is specifically described; what be necessary to herein means out is that following examples are only used to further illustrate the present invention; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some nonessential modification and adjustment according to the content of foregoing invention to the present invention.
In following reference examples and embodiment, ternary fluororubber, viton are purchased from Shanghai Gang Wofujiao goods Science and Technology Ltd., and all the other raw materials are purchased from Shanghai to prosperous Chemical Co., Ltd.;
Comparative example:
Ternary fluororubber 1000g is put pressing 2min on a mill until, then extra light calcined magnesia 30g, calcium hydroxide 60g, carnauba wax 20g is added, the mixing 6min of diatomite CELLETE499250g, then bisphenol AF 20g and BPP 5g is added, mixing 2min, 0.5mm thin-pass 8 times, 4mm roll spacing bottom sheet cools.The temperature of cylinder controls at 75 DEG C.Vulcanization parameters is first cure temperature is 175 DEG C, and curing time is 15min; Second segment curing temperature is 200 DEG C, and curing time is 8h.
Embodiment 1:
By viton, (Oil repellent counts 57% with mass percentage, being 95 under mooney viscosity ML1+10100 DEG C test condition) 1000g puts pressing 2min on a mill until, then after adding cyanacrylate 30g, cerium oxide 10g, the mixing 6min of Zinic stearas 10g, N990 carbon black 66.7g, add the mixing 6min of N990 carbon black 133.3g again, finally add two tert-butyl peroxy base-diisopropyl benzene 20g, mixing 2min, 0.5mm thin-pass 8 times, 4mm roll spacing bottom sheet cools.30h thin-pass 10 times in mill again parked by film, and the temperature of cylinder is 75 DEG C; The vulcanization parameters of first cure is temperature 175 DEG C, and curing time is 15min; The vulcanization parameters of second segment sulfuration is temperature is 200 DEG C, and curing time is 8h.
Embodiment 2:
By viton, (Oil repellent counts 57% with mass percentage, mooney viscosity ML
1+10being 96 under 100 DEG C of test conditions) 1000g puts pressing 2min on a mill until, then cyanacrylate 60g is added, cerium oxide 30g, Zinic stearas 30g, after the mixing 6min of N990 carbon black 100g, add the mixing 6min of residue reinforcing filler N990 carbon black 200g again, finally add two tert-butyl peroxy base-diisopropyl benzene 30g, mixing 2min, 0.5mm thin-pass 10 times, 4mm roll spacing bottom sheet cools.48h thin-pass 12 times in mill again parked by film, and the temperature of cylinder is 75 DEG C.The vulcanization parameters of first cure is temperature is 175 DEG C, and curing time is 15min; The vulcanization parameters of second segment curing temperature is for being 200 DEG C, and curing time is 8h.
Embodiment 3:
By viton, (Oil repellent counts 57% with mass percentage, mooney viscosity ML
1+10being 100 under 100 DEG C of test conditions) 1000g puts pressing 2min on a mill until, then triallylcyanurate 50g is added, plumbous oxide inner complex 20g, sodium stearate 20g, after the mixing 6min of ultra-fine barium sulfate 83.3g, then add the mixing 6min of ultra-fine barium sulfate 166.7g, finally add 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane 25g, mixing 2min, 0.5mm thin-pass 9 times, 4mm roll spacing bottom sheet cools.48h thin-pass 11 times in mill again parked by film, and the temperature of cylinder is 75; The vulcanization parameters of first cure is temperature 175 DEG C, and curing time is 15min; The vulcanization parameters of second segment sulfuration is temperature is 200 DEG C, and curing time is 8h.
Embodiment 4:
By viton, (Oil repellent counts 57% with mass percentage, mooney viscosity ML
1+10being 98 under 100 DEG C of test conditions) 1000g puts pressing 2min on a mill until, then triallylcyanurate 30g is added, plumbous oxide inner complex 10g, Zinic stearas 20g, after the mixing 6min of N990 carbon black 83.3g, add the mixing 6min of residue reinforcing filler N990 carbon black 166.7g again, finally add two tert-butyl peroxy base-diisopropyl benzene 30g, mixing 2min, 0.5mm thin-pass 8 times, 4mm roll spacing bottom sheet cools.60h thin-pass 10 times in mill again parked by film, and the temperature of cylinder is 75 DEG C.The vulcanization parameters of first cure is temperature 175 DEG C, and curing time is 15min; The vulcanization parameters of second segment sulfuration is temperature is 200 DEG C, and curing time is 8h.
Embodiment 5:
By viton, (Oil repellent counts 57% with mass percentage, mooney viscosity ML
1+10being 99 under 100 DEG C of test conditions) 1000g puts pressing 2min on a mill until, then cyanacrylate 50g is added, cerium oxide is 20g, sodium stearate 20g, after the mixing 6min of ultra-fine barium sulfate 70g, then adds the mixing 6min of residue ultra-fine barium sulfate 140g, finally add 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane 25g, mixing 2min, 0.5mm thin-pass 8 times, 4mm roll spacing bottom sheet cools.48h thin-pass 12 times in mill again parked by film, and the temperature of cylinder is 75 DEG C.The vulcanization parameters of first cure is temperature 175 DEG C, and curing time is 15min; The vulcanization parameters of second segment sulfuration is temperature is 200 DEG C, and curing time is 8h.
The performance test of test example embodiment and comparative example
1. testing method illustrate: acid-proof alkaline press GB/T3782-2005, choice criteria sulfuration test piece respectively volumetric molar concentration be 12 sulfuric acid and volumetric molar concentration be in the sodium hydroxide of 19, under 70 DEG C of conditions, soak 70h, test be correlated with physicals.Sample after immersion, its tensile strength and elongation at break test, according to GB1040-2001, are tested.
2. test result
The performance of table 1 embodiment and comparative example
Table 1 gives the performance of embodiment and comparative example, and as can be seen from Table 1, the performance relative contrast example of the embodiment test of application technical solution of the present invention, the strong alkali-acid resistance performance of elastomeric material significantly improves.
Claims (8)
1. a viton material for strong acid-base resistance, is characterized in that, comprises the component of following mass parts: viton 100 parts, heat-resistant agent 1 ~ 3 part, promoting agent 3 ~ 6 parts, processing aid 1 ~ 3 part, reinforcing filler 20 ~ 30 parts, vulcanizing agent 2 ~ 3 parts.
2. the viton material of strong acid-base resistance according to claim 1, is characterized in that, the Oil repellent of described viton is 57%, mooney viscosity ML by mass percentage
1+10100 DEG C of test conditions are 95 ~ 100.
3. the viton material of strong acid-base resistance according to claim 1, is characterized in that, described heat-resistant agent is: any one in cerium oxide or plumbous oxide inner complex.
4. the viton material of strong acid-base resistance according to claim 1, is characterized in that, described processing aid is: Zinic stearas or sodium stearate.
5. the viton material of strong acid-base resistance according to claim 1, is characterized in that, described reinforcing filler is: any one or two kinds in N990 carbon black, ultra-fine barium sulfate are also used.
6. the viton material of strong acid-base resistance according to claim 1, is characterized in that, described promoting agent is triallylcyanurate or cyanacrylate.
7. the viton material of strong acid-base resistance according to claim 1, is characterized in that, described vulcanizing agent is: 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane or two tert-butyl peroxy base-diisopropyl benzene.
8. one kind as arbitrary in claim 1 ~ 7 as described in the preparation method of viton material of strong acid-base resistance, it is characterized in that: adopt mill processing, viton is dropped into mill pressing 2 ~ 3min, first add heat-resistant agent, promoting agent, processing aid and the mixing 4 ~ 6min of 1/3rd reinforcing fillers, then the mixing 5 ~ 7min of residue reinforcing filler is added, finally add the mixing 2 ~ 3min of vulcanizing agent, in 0.5mm roll spacing thin-pass 8 ~ 10 times, 4mm roll spacing bottom sheet cools, and mixing process bowl temperature is 70 ~ 85 DEG C; More than 24h thin-pass 10 ~ 12 times in mill again parked by film, and the cooling of 4mm roll spacing bottom sheet is stand-by; The vulcanization parameters of first cure is temperature 175 DEG C, and curing time is 15min; The vulcanization parameters of second segment sulfuration is temperature is 200 DEG C, and curing time is 8h.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106751246A (en) * | 2016-12-12 | 2017-05-31 | 芜湖集拓橡胶技术有限公司 | The high-performance fluorine rubber seal of resistance to bio-fuel-oil material prescription |
| CN107083069A (en) * | 2017-06-29 | 2017-08-22 | 合肥达户电线电缆科技有限公司 | A kind of environment-friendly rubber and preparation method thereof |
| CN107434863A (en) * | 2017-09-12 | 2017-12-05 | 芜湖航天特种电缆厂股份有限公司 | Naval vessel high-strength cable sheath and preparation method thereof |
| CN108727747A (en) * | 2017-04-25 | 2018-11-02 | 浙江久运车辆部件有限公司 | A kind of preparation method of fluorine sizing material blow-off pipe |
| CN109651736A (en) * | 2018-12-27 | 2019-04-19 | 广州弗西林橡塑有限公司 | A kind of end cap seal loop material of lithium battery electrolytes and preparation method thereof |
| CN110157124A (en) * | 2019-05-10 | 2019-08-23 | 上海杜实新材料科技有限公司 | A kind of tetrapropanate fluorine rubber composition of hydrogen sulfide corrosion-resistant and its application |
| CN110218405A (en) * | 2019-05-10 | 2019-09-10 | 上海杜实新材料科技有限公司 | A kind of fluoro-rubber composite of hydrogen sulfide corrosion-resistant and its application |
| CN111534028A (en) * | 2020-05-28 | 2020-08-14 | 芜湖航天特种电缆厂股份有限公司 | Method for prolonging service life of Ethernet cable |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106751246A (en) * | 2016-12-12 | 2017-05-31 | 芜湖集拓橡胶技术有限公司 | The high-performance fluorine rubber seal of resistance to bio-fuel-oil material prescription |
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| CN107083069A (en) * | 2017-06-29 | 2017-08-22 | 合肥达户电线电缆科技有限公司 | A kind of environment-friendly rubber and preparation method thereof |
| CN107434863A (en) * | 2017-09-12 | 2017-12-05 | 芜湖航天特种电缆厂股份有限公司 | Naval vessel high-strength cable sheath and preparation method thereof |
| CN109651736A (en) * | 2018-12-27 | 2019-04-19 | 广州弗西林橡塑有限公司 | A kind of end cap seal loop material of lithium battery electrolytes and preparation method thereof |
| CN109651736B (en) * | 2018-12-27 | 2021-02-26 | 广州弗西林橡塑有限公司 | End cover sealing ring material of lithium battery electrolyte and preparation method thereof |
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