CN104974434A - Rubber composition used for valve base, preparation method thereof and the valve base - Google Patents
Rubber composition used for valve base, preparation method thereof and the valve base Download PDFInfo
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- CN104974434A CN104974434A CN201410144766.7A CN201410144766A CN104974434A CN 104974434 A CN104974434 A CN 104974434A CN 201410144766 A CN201410144766 A CN 201410144766A CN 104974434 A CN104974434 A CN 104974434A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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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
- C08L9/06—Copolymers with styrene
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a rubber composition used for a valve base, wherein the rubber composition includes: ethylene-propylene rubber 4640, carbon black N330, carbon black N220, a carbon black reinforcing agent N774, paraffin oil, light calcium, zinc oxide, stearic acid, a dispersing agent (AFLUX-42), dipentamethylenethiuram tetrasulfide (accelerant TRA), N,N'-m-phenylene dimaleimide (accelerant HVA-2), dicapryl phthalate (plasticizer DCP), and sulfur S. The invention also provides a preparation method of the rubber composition, comprising the steps of internal mixing, open milling and vulcanization. The rubber composition can be used for making a valve base or a wear-resistant valve base of a center line-type butterfly valve. The preparation method is simple in formula and process, is short in vulcanization time, is high in production efficiency, is low in production cost and is easy to achieve industrialization. The valve base made of the rubber composition is good in sealing performance, is uniform in structure, is corrosion-resistant, high-temperature-resistant and low-temperature-resistant, is flame-retarding and environment-friendly, and is wear-resistant.
Description
Technical field
The present invention relates to field of rubber technology, be specially a kind of rubber combination and preparation method thereof, and the centre-pivoted butterfly valve valve seat using rubber combination disclosed by the invention to prepare or the wear-resisting valve seat of centre-pivoted butterfly valve.
Background technology
Centre-pivoted butterfly valve is a kind of parts being used for realizing piping system break-make and flow control, is used widely in fields such as oil, chemical industry, metallurgy, water power, automobiles.Valve seat is one of major parts of centre-pivoted butterfly valve, and for supporting spool closed positions, valve seat is generally positioned on valve body, when rotating shaft drives valve plate to rotate, valve plate contacts with valve seat, makes valve closes reach sealed state, and therefore valve seat has vital effect for the sealing property of centre-pivoted butterfly valve.
In recent years, widely, all kinds of rubber, plastics, metallic substance all can be used as valve seat material to the material of centre-pivoted butterfly valve valve seat, such as: EPDM, NBR, NR, PTFE, PEEK, PFA, SS315, STELLITE etc.Along with the diversification of the fast development of automotive industry and people's demand, environmental protection, high performance and attractive in appearanceization, the material for automobile centre-pivoted butterfly valve valve seat requires more and more higher.But, common centre-pivoted butterfly valve valve seat is bonded on metal parts, because when being subject to thermal shocking, bonding can be broken and lose efficacy, enough large pressure will destroy matrix material, the shortcoming there is poor sealing performance, even structure is poor, corrosion-resistant, resistant of high or low temperature are poor, flame-proof environmental protection is poor, wearing no resistance.
Ethylene-propylene rubber(EPR) is the type material of a kind of favorable sealing property, erosion resistance, resistance to ozone, electrical insulating property, low compression set, high strength, high elongation rate, high-low temperature resistant, flame-proof environmental protection.Therefore, ethylene-propylene rubber(EPR) and other component are made rubber combination by certain process means, for the preparation of centre-pivoted butterfly valve valve seat or the wear-resisting valve seat of centre-pivoted butterfly valve, be widely used in fields such as automobiles prospect.
Summary of the invention
The poor sealing performance existed for centre-pivoted butterfly valve seat material, even structure is poor, corrosion-resistant, resistant of high or low temperature are poor, flame-proof environmental protection is poor, the shortcoming that wears no resistance, the valve seat that the invention provides a kind of novel rubber combination, preparation method and use this rubber combination to prepare.
The invention provides a kind of rubber combination, be made up of the raw material of following portions by weight: second third glue 4640 0-100 part, second third rubber powder 0-55 part, butadiene-styrene rubber 1712 0-160 part, non-odor generated rubber 0-190 part, carbon black N330 0-50 part, carbon black N220 0-20 part, black-reinforced agent N774 0-80 part, carbon black N774 0-90 part, black-reinforced agent N550 0-130 part, paraffin oil 0-25 part, paraffin 0-2 part, fine particle calcium carbonate 0-95 part, zinc oxide 4-12 part, stearic acid 0.8-4 part, dispersion agent (AFLUX-42) 1-2 part, PEG-4000 0-2 part, tetra-sulfurized pair penta-methylene thiuram (promotor TRA) or N, a N '-penylene bismaleimides (vulkacit H VA-2) 0-1 part, di-sec-octyl phthalate (softening agent DCP) 0-6 part, sulphur S 0.2-4 part, N-sec.-propyl-N '-diphenyl-para-phenylene diamine (antioxidant 4010NA) 0-2 part, anti-old fourth 0-2 part, 4-4 '-dimorpholinyl disulfide (vulcanizing agent DTDM) 0-2 part, N-cyclohexyl-2-benzothiazole sulfonamide (accelerant CZ) 0-4 part, vulkacit D 0-1 part, 2, 2'-dithio-bis-benzothiazole (altax) 0-3 part.
The preferred rubber combination of the present invention, be made up of the raw material of following portions by weight: 4,640 100 parts, second third glue, second third rubber powder 0-55 part, carbon black N330 30-50 part, black-reinforced agent N774 60-65 part, paraffin oil 0-10 part, fine particle calcium carbonate 20-50 part, zinc oxide 4-6 part, stearic acid 0.8-1 part, dispersion agent (AFLUX-42) 1-2 part, PEG-4000 0-2 part, tetra-sulfurized pair penta-methylene thiuram (promotor TRA) or N, a N '-penylene bismaleimides (vulkacit H VA-2) 0-1 part, di-sec-octyl phthalate (softening agent DCP) 4-6 part, sulphur S 0.3-0.4 part.
The preferred rubber combination of the present invention, be made up of the raw material of following portions by weight: 4,640 100 parts, second third glue, carbon black N330 30-40 part, black-reinforced agent N774 30-65 part, carbon black N220 15-20 part, paraffin oil 10-20 part, fine particle calcium carbonate 0-50 part, zinc oxide 4-6 part, stearic acid 1-4 part, dispersion agent (AFLUX-42) 1-2 part, tetra-sulfurized pair penta-methylene thiuram (promotor TRA) or N, a N '-penylene bismaleimides (vulkacit H VA-2) 0-0.5 part, di-sec-octyl phthalate (softening agent DCP) 4-5 part, sulphur S 0.2-0.4 part.
The preferred rubber combination of the present invention, be made up of the raw material of following portions by weight: butadiene-styrene rubber 1712 100-150 part, non-odor generated rubber 120-190 part, carbon black N330 0-30 part, black-reinforced agent N774 0-80 part, carbon black N774 0-90 part, black-reinforced agent N550 0-130 part, paraffin oil 0-5 part, paraffin 0-2 part, fine particle calcium carbonate 0-95 part, zinc oxide 6-12 part, stearic acid 2-4 part, sulphur S 2-4 part, N-sec.-propyl-N '-diphenyl-para-phenylene diamine (antioxidant 4010NA) 1-2 part, anti-old fourth 0-2 part, 4-4 '-dimorpholinyl disulfide (vulcanizing agent DTDM) 0-2 part, N-cyclohexyl-2-benzothiazole sulfonamide (accelerant CZ) 1-4 part, vulkacit D 0-1 part, 2, 2'-dithio-bis-benzothiazole (altax) 1-3 part.
The invention provides a kind of preparation method of rubber combination, step is:
(1) material is taken according to the raw material weight number of above-mentioned rubber combination;
(2) add raw material successively, through over-mastication 60-80 second, mixing 30-40 second, banburying 60-120 obtains one section of glue second, plasticates and melting temperature is 120-140
oc;
(3) one section of glue is placed on a mill until, adds raw material, at 55-70
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 170-180
oc sulfuration obtains one step cure product in 10-14 minute.
The invention provides a kind of valve seat using above-mentioned rubber combination to prepare, preferred centre-pivoted butterfly valve valve seat.
Rubber combination preparation method provided by the invention has formula and production technique is simple, curing time is short, production efficiency is high, production cost is relatively low, technology implements the feature that is easy to.Valve seat provided by the invention has favorable sealing property, even structure, corrosion-resistant, high-low temperature resistant, flame-proof environmental protection, wear-resisting feature.
Embodiment
Specific embodiment below can make the present invention of those skilled in the art's comprehend, but does not limit the present invention in any way.
embodiment 1:
(1) 15Kg second third glue 4640,5.24Kg carbon black N330 is taken, 9Kg black-reinforced agent N774,3Kg paraffin oil, 6Kg fine particle calcium carbonate, 0.75Kg zinc oxide, 0.2Kg stearic acid, 0.26KgAFLUX-42,0.05Kg promotor TRA, 0.675Kg softening agent DCP, 0.045Kg sulphur S;
(2) second third glue is placed in Banbury mixer to plasticate 80 seconds, adds zinc oxide, stearic acid mixing 40 seconds, add carbon black N330, black-reinforced agent N774, paraffin oil, fine particle calcium carbonate, AFLUX-42 banburying 120 seconds one section of glue, to plasticate and melting temperature is 120
oc;
(3) one section of glue is placed on a mill until, adds promotor TRA, softening agent DCP, sulphur S, 70
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 175
oc sulfuration obtains one step cure product in 12 minutes.
embodiment 2:
(1) 18.5Kg second third glue 4640,7Kg carbon black N330 is taken, 6Kg black-reinforced agent N774,3Kg carbon black N220,3.3Kg paraffin oil, 1Kg zinc oxide, 0.22Kg stearic acid, 0.26KgAFLUX-42,0.83Kg vulkacit D CP, 0.055Kg sulphur S;
(2) second third glue is placed in Banbury mixer to plasticate 80 seconds, add zinc oxide, stearic acid mixing 40 seconds, add carbon black N330, carbon black N220, black-reinforced agent N774, paraffin oil, fine particle calcium carbonate, AFLUX-42 banburying 120 seconds one section of glue, to plasticate and melting temperature is 120
oc;
(3) one section of glue is placed on a mill until, adds promotor TRA, softening agent DCP, sulphur S, 70
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 175
oc sulfuration obtains one step cure product in 12 minutes.
embodiment 3:
(1) 13Kg second third glue 4640,7Kg second third rubber powder is taken, 6Kg carbon black N330,8.3Kg black-reinforced agent N774,3.5Kg naphthenic oil, 6.3Kg fine particle calcium carbonate, 0.75Kg zinc oxide, 0.12Kg stearic acid, 0.24KgAFLUX-42,0.24KgPEG-40000,0.1Kg promotor TRA, 0.7Kg softening agent DCP, 0.045Kg sulphur S;
(2) second third glue is placed in Banbury mixer to plasticate 80 seconds, adds zinc oxide, stearic acid mixing 40 seconds, add carbon black N330, black-reinforced agent N774, paraffin oil, fine particle calcium carbonate, AFLUX-42 banburying 120 seconds one section of glue, to plasticate and melting temperature is 120
oc;
(3) one section of glue is placed on a mill until, adds promotor TRA, softening agent DCP, sulphur S, 70
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 180
oc sulfuration obtains one step cure product in 6 minutes 30 seconds.
embodiment 4:
(1) 18Kg second third glue 4640,6Kg carbon black N330 is taken, 11Kg black-reinforced agent N774,1.5Kg paraffin oil, 4Kg fine particle calcium carbonate, 0.8Kg zinc oxide, 0.16Kg stearic acid, 0.32KgAFLUX-42,0.1Kg promotor TRA, 0.84Kg softening agent DCP, 0.06Kg sulphur S;
(2) second third glue is placed in Banbury mixer to plasticate 80 seconds, adds zinc oxide, stearic acid mixing 40 seconds, add carbon black N330, black-reinforced agent N774, paraffin oil, fine particle calcium carbonate, AFLUX-42 banburying 120 seconds one section of glue, to plasticate and melting temperature is 120
oc;
(3) one section of glue is placed on a mill until, adds promotor TRA, softening agent DCP, sulphur S, 70
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 175
oc sulfuration obtains one step cure product in 12 minutes.
embodiment 5:
(1) 18Kg second third glue 4640,6Kg carbon black N330 is taken, 11Kg black-reinforced agent N774,1.7Kg paraffin oil, 4Kg fine particle calcium carbonate, 0.8Kg zinc oxide, 0.16Kg stearic acid, 0.32KgAFLUX-42,0.1Kg promotor TRA, 0.84Kg softening agent DCP, 0.06Kg sulphur S;
(2) second third glue is placed in Banbury mixer to plasticate 80 seconds, adds zinc oxide, stearic acid mixing 40 seconds, add carbon black N330, black-reinforced agent N774, paraffin oil, fine particle calcium carbonate, AFLUX-42 banburying 120 seconds one section of glue, to plasticate and melting temperature is 120
oc;
(3) one section of glue is placed on a mill until, adds promotor TRA, softening agent DCP, sulphur S, 70
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 175
oc sulfuration obtains one step cure product in 12 minutes.
embodiment 6:
(1) 8Kg butadiene-styrene rubber 1712,15Kg non-odor generated rubber is taken, 2Kg carbon black N330,6Kg black-reinforced agent N550,0.3Kg paraffin oil, 7.27Kg fine particle calcium carbonate, 0.6Kg zinc oxide, 0.24Kg stearic acid, 0.12Kg antioxidant 4010NA, 0.12Kg prevents old fourth, 0.1Kg vulcanizing agent DTDM, 0.09Kg accelerant CZ, 0.08KgDM, 0.18Kg sulphur S;
(2) second third glue is placed in Banbury mixer to plasticate 80 seconds, adds zinc oxide, stearic acid mixing 40 seconds, add carbon black N330, black-reinforced agent N774, paraffin oil, fine particle calcium carbonate, AFLUX-42 banburying 120 seconds one section of glue, to plasticate and melting temperature is 120
oc;
(3) one section of glue is placed on a mill until, adds promotor TRA, softening agent DCP, sulphur S, 70
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 175
oc sulfuration obtains one step cure product in 12 minutes.
embodiment 7:
(1) 12Kg butadiene-styrene rubber 1712,10Kg non-odor generated rubber is taken, 7Kg carbon black N330,10Kg black-reinforced agent N550,0.12Kg paraffin, 0.8Kg zinc oxide, 0.3Kg stearic acid, 0.15Kg antioxidant 4010NA, 0.3Kg accelerant CZ, 0.2KgDM, 0.3Kg sulphur S;
(2) second third glue is placed in Banbury mixer to plasticate 80 seconds, adds zinc oxide, stearic acid mixing 40 seconds, add carbon black N330, black-reinforced agent N774, paraffin oil, fine particle calcium carbonate, AFLUX-42 banburying 120 seconds one section of glue, to plasticate and melting temperature is 120
oc;
(3) one section of glue is placed on a mill until, adds promotor TRA, softening agent DCP, sulphur S, 70
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 175
oc sulfuration obtains one step cure product in 12 minutes.
embodiment 8:
(1) 12Kg butadiene-styrene rubber 1712,10Kg non-odor generated rubber is taken, 7Kg carbon black N330,10Kg black-reinforced agent N550,0.12Kg paraffin, 0.8Kg zinc oxide, 0.3Kg stearic acid, 0.15Kg antioxidant 4010NA, 0.3Kg accelerant CZ, 0.2KgDM, 0.3Kg sulphur S;
(2) second third glue is placed in Banbury mixer to plasticate 80 seconds, adds zinc oxide, stearic acid mixing 40 seconds, add carbon black N330, black-reinforced agent N774, paraffin oil, fine particle calcium carbonate, AFLUX-42 banburying 120 seconds one section of glue, to plasticate and melting temperature is 120
oc;
(3) one section of glue is placed on a mill until, adds promotor TRA, softening agent DCP, sulphur S, 70
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 175
oc sulfuration obtains one step cure product in 12 minutes.
embodiment 9:
(1) 14Kg second third glue 4640,6.5Kg carbon black N330 is taken, 10Kg black-reinforced agent N774,2Kg paraffin oil, 6Kg fine particle calcium carbonate, 0.6Kg zinc oxide, 0.15Kg stearic acid, 0.26KgAFLUX-42,0.1Kg vulkacit H VA-2,0.675Kg softening agent DCP, 0.045Kg sulphur S;
(2) second third glue is placed in Banbury mixer to plasticate 80 seconds, adds zinc oxide, stearic acid mixing 40 seconds, add carbon black N330, black-reinforced agent N774, paraffin oil, fine particle calcium carbonate, AFLUX-42 banburying 120 seconds one section of glue, to plasticate and melting temperature is 120
oc;
(3) one section of glue is placed on a mill until, adds vulkacit H VA-2, softening agent DCP, sulphur S, 70
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 170
oc sulfuration obtains one step cure product in 12 minutes.
embodiment 10:
(1) 16Kg second third glue 4640,6.5Kg carbon black N330 is taken, 8.6Kg black-reinforced agent N774,2Kg paraffin oil, 5Kg fine particle calcium carbonate, 0.75Kg zinc oxide, 0.18Kg stearic acid, 0.3KgAFLUX-42,0.15Kg promotor TRA, 0.75Kg softening agent DCP, 0.055Kg sulphur S;
(2) second third glue is placed in Banbury mixer to plasticate 60 seconds, adds zinc oxide, stearic acid mixing 40 seconds, add carbon black N330, black-reinforced agent N774, paraffin oil, fine particle calcium carbonate, AFLUX-42 banburying 120 seconds one section of glue, to plasticate and melting temperature is 130
oc;
(3) one section of glue is placed on a mill until, adds promotor TRA, softening agent DCP, sulphur S, 60
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 170
oc sulfuration obtains one step cure product in 10 minutes.
embodiment 11:
(1) 17Kg second third glue 4640 is taken, 6.3Kg carbon black N330,8.5Kg black-reinforced agent N774,2.8Kg paraffin oil, 5.5Kg fine particle calcium carbonate, 0.7Kg zinc oxide, 0.22Kg stearic acid, 0.26KgAFLUX-42,0.18KgPEG-4000,0.05Kg promotor TRA, 0.675Kg softening agent DCP, 0.045Kg sulphur S;
(2) second third glue is placed in Banbury mixer to plasticate 60 seconds, adds zinc oxide, stearic acid mixing 40 seconds, add carbon black N330, black-reinforced agent N774, paraffin oil, fine particle calcium carbonate, AFLUX-42 banburying 120 seconds one section of glue, to plasticate and melting temperature is 130
oc;
(3) one section of glue is placed on a mill until, adds vulkacit H VA-2, softening agent DCP, sulphur S, 60
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 170
oc sulfuration obtains one step cure product in 10 minutes.
embodiment 12:
(1) 18Kg second third glue 4640,7Kg carbon black N330 is taken, 6Kg black-reinforced agent N774,2.8Kg carbon black N220,2.5Kg paraffin oil, 0.9Kg zinc oxide, 0.2Kg stearic acid, 0.3KgAFLUX-42,0.8Kg vulkacit D CP, 0.06Kg sulphur S;
(2) second third glue is placed in Banbury mixer to plasticate 60 seconds, add zinc oxide, stearic acid mixing 40 seconds, add carbon black N330, carbon black N220, black-reinforced agent N774, paraffin oil, fine particle calcium carbonate, AFLUX-42 banburying 120 seconds one section of glue, to plasticate and melting temperature is 120
oc;
(3) one section of glue is placed on a mill until, adds promotor TRA, softening agent DCP, sulphur S, 60
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 175
oc sulfuration obtains one step cure product in 6 minutes.
Claims (7)
1. the rubber combination for valve seat, it is characterized in that, be made up of the raw material of following portions by weight: second third glue 4640 0-100 part, second third rubber powder 0-55 part, butadiene-styrene rubber 1712 0-160 part, non-odor generated rubber 0-190 part, carbon black N330 0-50 part, carbon black N220 0-20 part, black-reinforced agent N774 0-80 part, carbon black N774 0-90 part, black-reinforced agent N550 0-130 part, paraffin oil 0-25 part, paraffin 0-2 part, fine particle calcium carbonate 0-95 part, zinc oxide 4-12 part, stearic acid 0.8-4 part, dispersion agent (AFLUX-42) 1-2 part, PEG-4000 0-2 part, tetra-sulfurized pair penta-methylene thiuram (promotor TRA) or N, a N '-penylene bismaleimides (vulkacit H VA-2) 0-1 part, di-sec-octyl phthalate (softening agent DCP) 0-6 part, sulphur S 0.2-4 part, N-sec.-propyl-N '-diphenyl-para-phenylene diamine (antioxidant 4010NA) 0-2 part, anti-old fourth 0-2 part, 4-4 '-dimorpholinyl disulfide (vulcanizing agent DTDM) 0-2 part, N-cyclohexyl-2-benzothiazole sulfonamide (accelerant CZ) 0-4 part, vulkacit D 0-1 part, 2, 2'-dithio-bis-benzothiazole (altax) 0-3 part.
2. rubber combination according to claim 1, it is characterized in that, be made up of the raw material of following portions by weight: 4,640 100 parts, second third glue, second third rubber powder 0-55 part, carbon black N330 30-50 part, black-reinforced agent N774 60-65 part, paraffin oil 0-10 part, fine particle calcium carbonate 20-50 part, zinc oxide 4-6 part, stearic acid 0.8-1 part, dispersion agent (AFLUX-42) 1-2 part, PEG-4000 0-2 part, tetra-sulfurized pair penta-methylene thiuram (promotor TRA) or N, a N '-penylene bismaleimides (vulkacit H VA-2) 0-1 part, di-sec-octyl phthalate (softening agent DCP) 4-6 part, sulphur S 0.3-0.4 part.
3. rubber combination according to claim 1, it is characterized in that, be made up of the raw material of following portions by weight: 4,640 100 parts, second third glue, carbon black N330 30-40 part, black-reinforced agent N774 30-65 part, carbon black N220 15-20 part, paraffin oil 10-20 part, fine particle calcium carbonate 0-50 part, zinc oxide 4-6 part, stearic acid 1-4 part, dispersion agent (AFLUX-42) 1-2 part, tetra-sulfurized pair penta-methylene thiuram (promotor TRA) or N, a N '-penylene bismaleimides (vulkacit H VA-2) 0-0.5 part, di-sec-octyl phthalate (softening agent DCP) 4-5 part, sulphur S 0.2-0.4 part.
4. rubber combination according to claim 1, it is characterized in that, be made up of the raw material of following portions by weight: butadiene-styrene rubber 1712 100-150 part, non-odor generated rubber 120-190 part, carbon black N330 0-30 part, black-reinforced agent N774 0-80 part, carbon black N774 0-90 part, black-reinforced agent N550 0-130 part, paraffin oil 0-5 part, paraffin 0-2 part, fine particle calcium carbonate 0-95 part, zinc oxide 6-12 part, stearic acid 2-4 part, sulphur S 2-4 part, N-sec.-propyl-N '-diphenyl-para-phenylene diamine (antioxidant 4010NA) 1-2 part, anti-old fourth 0-2 part, 4-4 '-dimorpholinyl disulfide (vulcanizing agent DTDM) 0-2 part, N-cyclohexyl-2-benzothiazole sulfonamide (accelerant CZ) 1-4 part, vulkacit D 0-1 part, 2, 2'-dithio-bis-benzothiazole (altax) 1-3 part.
5., for a preparation method for the rubber combination of valve seat, step is:
(1) material is taken according to the raw material weight number of the rubber combination described in any one of claim 1-4;
(2) add raw material successively, through over-mastication 60-80 second, mixing 30-40 second, banburying 60-120 obtains one section of glue second, plasticates and melting temperature is 120-140
oc;
(3) one section of glue is placed on a mill until, adds raw material, at 55-70
oopen refining under C even to section, slice obtains two sections of glue;
(4) by after two sections of gum formings on vulcanizer 170-180
oc sulfuration obtains one step cure product in 10-14 minute.
6. the valve seat prepared by the rubber combination described in any one of claim 1-4.
7. valve seat according to claim 5, is characterized in that, described valve seat is centre-pivoted butterfly valve valve seat.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410144766.7A CN104974434A (en) | 2014-04-12 | 2014-04-12 | Rubber composition used for valve base, preparation method thereof and the valve base |
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| CN201410144766.7A CN104974434A (en) | 2014-04-12 | 2014-04-12 | Rubber composition used for valve base, preparation method thereof and the valve base |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105504537A (en) * | 2015-12-30 | 2016-04-20 | 安徽铜陵科力阀门有限责任公司 | Anti-abrasion butterfly valve sealing rubber with high peel strength |
| CN107815027A (en) * | 2017-11-09 | 2018-03-20 | 克里特集团有限公司 | A kind of ball seat and preparation method thereof |
| CN113150456A (en) * | 2021-05-28 | 2021-07-23 | 浙江省上虞油封制造有限公司 | Rubber sealing valve and production process thereof |
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| CN102417631A (en) * | 2011-10-31 | 2012-04-18 | 铜陵新特阀门有限责任公司 | Rubber material for production of parallel gate valve end surface O-shaped sealing ring and preparation method thereof |
| CN102731916A (en) * | 2012-05-30 | 2012-10-17 | 芜湖荣基密封系统有限公司 | Reclaimed EPDM rubber mixed rubber sealing ring |
| CN103467860A (en) * | 2012-06-09 | 2013-12-25 | 天津滨海新区大港汇丰汽车装饰有限公司 | Preparation method for anti-blooming automobile rubber product |
| CN103467861A (en) * | 2012-06-09 | 2013-12-25 | 天津滨海新区大港汇丰汽车装饰有限公司 | Preparation method of automobile corner window sealing material |
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- 2014-04-12 CN CN201410144766.7A patent/CN104974434A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417631A (en) * | 2011-10-31 | 2012-04-18 | 铜陵新特阀门有限责任公司 | Rubber material for production of parallel gate valve end surface O-shaped sealing ring and preparation method thereof |
| CN102731916A (en) * | 2012-05-30 | 2012-10-17 | 芜湖荣基密封系统有限公司 | Reclaimed EPDM rubber mixed rubber sealing ring |
| CN103467860A (en) * | 2012-06-09 | 2013-12-25 | 天津滨海新区大港汇丰汽车装饰有限公司 | Preparation method for anti-blooming automobile rubber product |
| CN103467861A (en) * | 2012-06-09 | 2013-12-25 | 天津滨海新区大港汇丰汽车装饰有限公司 | Preparation method of automobile corner window sealing material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105504537A (en) * | 2015-12-30 | 2016-04-20 | 安徽铜陵科力阀门有限责任公司 | Anti-abrasion butterfly valve sealing rubber with high peel strength |
| CN107815027A (en) * | 2017-11-09 | 2018-03-20 | 克里特集团有限公司 | A kind of ball seat and preparation method thereof |
| CN113150456A (en) * | 2021-05-28 | 2021-07-23 | 浙江省上虞油封制造有限公司 | Rubber sealing valve and production process thereof |
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Application publication date: 20151014 |