CN101649180A - Oil resistance foamable end cap sealing material and preparation method thereof - Google Patents
Oil resistance foamable end cap sealing material and preparation method thereof Download PDFInfo
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- CN101649180A CN101649180A CN200910055797A CN200910055797A CN101649180A CN 101649180 A CN101649180 A CN 101649180A CN 200910055797 A CN200910055797 A CN 200910055797A CN 200910055797 A CN200910055797 A CN 200910055797A CN 101649180 A CN101649180 A CN 101649180A
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Abstract
The invention discloses an oil resistance foamable end cap sealing material and a preparation method thereof. The method comprises the following steps: using butadiene-nitrile rubber, butadiene-nitrile hydride rubber, carboxylic butadiene-nitrile rubber or chloroprene rubber to plastify with an open mill, a internal mixer or a screw masticator and prepare plasticated rubber, then using plasticatedrubber, vulcanizer, foaming agent, anti-aging agent, softening oil, reinforcing agent and the like to mix with an open mill, a internal mixer or a screw masticator and prepare mixed rubber, then adopting the mixed rubber to prepare rubber sheets of the oil resistance foamable end cap sealing material through extruding, rolling and the like; using the rubber sheets and paper cores to perform vulcanization foaming and forming in heated moulds and demoulding to obtain integrated environmental filter element without end cap which can be used in the air, fuel oil or engine oil filter of the automobile engine. Compared with the widely used filter element with an end cap, the filter element without end cap can bear heat and oil and is lighter, and when the filter element without end cap reachesthe service life to be discarded, the filter element can be fully burned and does not cause environmental pollution.
Description
Technical field
The present invention relates to a kind of oil resistance foamable end cap sealing material, more specifically relate to a kind of composition and preparation method of oil resistance foamable end cap sealing material, belong to the processing of polymer blended, polymer shaping, high molecule sealing materials field.
Background technology
Air filter, fuel filter, oil filter are the mechanical impuritys that is used for air that filtering enters gasoline and diesel motor, fuel oil, machine oil; protection engine crankshaft link work is paid, the precision component and the unlikely generation heel and toe wear of cylinder liner piston ring of fuel oil injection system, the indispensable component that economic target, dynamic index, reliability and the discharge index of engine are normally brought into play.Many automobile productions enterprise is in order to improve the long-time running reliability of engine, satisfy the environmental legislation of increasingly stringent and user requirements at the higher level, also on automobile, disposed the strainer of specific functions such as engine purifier and particle trapper, crankcase and fuel tank ventilation filter, compartment air purifier, water coolant purifier comfort level.
The filter material of motor car engine is with metallic substance, and particularly ferrous material is main, but because big, perishable, not wear-resisting, the complete processing of ferrous metal density requires highly, so manufacturing cost height, operational path are long.Advantages such as macromolecular material has that density is little, corrosion-resistant, intensity is high, the starting material source is abundant, easy-formation processing, price is low, chemical stability good, wear-resisting and damping property is good, it is the desirable equivalent material of some part in the purifier, can replace the part of metal that blade ring, diffusing cone, gasoline filter nylon outer shell, light sedan-chair air filter outer housing, cyclone pipe, pipe core are arranged, also have end cap, thrust-augmenting nozzle, dust guard ash-pan, collection tray, water drain valve, air bleeder screw plug and plastics filter core etc. in addition.
The progressively enforcement of raising that requires along with motor performance and Europe III, Europe IV Abgasgesetz, engine has been taked new technology measures such as supercharging, charge inter cooling, electric-controlled injection fuel oil, high-pressure common rail, simultaneously the purifier of engine is also had higher requirement.As: the environment-friendly type filter core that (1) is made of filter paper, non-woven fabrics, plastics, hot melt adhesive; (2) overall plastic air filter and intake noise reduction system; (3) reach the high precision fuel filter of Europe III, Europe IV emission request; (4) reach the exhaust gas purification and the particulate trap of Europe III, Europe IV emission request.Wherein, not only in use assist engine to realize low emission performance by the environment-friendly type filter core that filter paper, non-woven fabrics, plastics, hot melt adhesive constituted, and when work-ing life, termination went out of use, can not pollute by clean-burning no metal filtering core environment.
The filter core of purifier is formed by pleated refill and the bonding of end cap up and down, and the adhering and sealing of refill and end cap directly influences the technical feature of purifier.Most of end cap is to be formed by Zinc-coated steel-plated punch, bonds with refill after the applying glue; And plastic end cover adopts hot melt adhesive and refill to bond mainly by the polypropylene injection moulding.In the filter core technique for sticking, mainly adopt filter core glue that pleated refill and metal end are bondd and seal, can be divided into air filtering core with ambient cure glue, machine oil and fuel oil fitering element heating cure glue according to the purposes of filter core.
Air filtering core mainly is a two-component polyurethane adhesive with ambient cure glue, and first and second liang of components mix the back in proportion to the end cap applying glue, leave standstill after several minutes and insert refill, again the other end are carried out applying glue after an end is bonding.The operating procedure of ambient cure glue is simple, is not subjected to weather, environmental influence during use.Machine oil and fuel oil fitering element mainly are the polyvinyl chloride heating cure glue of single-component with heating cure glue, adopt glue-injection machine to the end cap applying glue, insert refill after continuous tunnel furnace carries out heating cure.Owing to added thermosetting resin as tackifier in the heating cure glue, therefore had better heat-resisting and oil-proofness.
Because the softening agent in the filter core glue can be extracted out by liquid mediums such as machine oil, fuel oils, and degradable carbonization takes place in polyvinyl chloride (PVC) RESINS under long term high temperature, especially in order to make the more abundant burning of fuel and to reduce emission of automobile wastes, part methyl alcohol or ethanol have also been added in the gasoline, some components in these alcohols material solubilized, the extracting filter core glue, cause the bonding strength of filter core and end cap to reduce even come off, cause scrapping in advance of purifier, thereby influence the work-ing life of engine.Therefore, bond and seal necessary filter core glue in order to eradicate refill and end cap, producing can clean-burning no metal environmental protection filter core after discarded, must the novel oil resistance foamable end cap sealing material of development.
Oil resistance foamable end cap sealing material is processed through blend by oil resisting rubber, vulcanizing agent, whipping agent, anti-aging agent, strengthening agent and softening wet goods material.Oil resistance foamable end cap sealing material is placed the two ends of refill, carry out the sulfur foam moulding in heated die, can obtain incorporate environment-friendly type after the demoulding does not have the end cap filter core.Because oil resistance foamable end cap sealing material as framework material, thereby has heat-resisting, oil resistant and light-weighted characteristics by oil resisting rubber such as paracril, hydrogenated nitrile-butadiene rubber, carboxy nitrile rubber, chloroprene rubber.Not only in use assist engine to realize low emission performance by the no end cap filter core that filter paper and bipeltate constituted, and when work-ing life, termination went out of use, can not pollute by clean-burning no metal filtering core environment.
Paracril (NBR) is the copolymer of divinyl and vinyl cyanide, density with the increase of acrylonitrile content by 0.945～0.999g/cm
3Not etc.Because vinyl cyanide segmental cyano group (CN) have higher polarity, so paracril has good thermotolerance, oil-proofness, wear resistance, resistance to air loss and static resistance.Through behind the black-reinforced, the tensile strength of butyronitrile vulcanized rubber can reach 25～30MPa, and maximum operation (service) temperature can reach 130 ℃, to nonpolar and low-pole oils swelling not substantially.
Hydrogenated nitrile-butadiene rubber (HNBR) is the butadiene unit on the paracril segment to be carried out selectable hydrogenation make, and contains on a small quantity in its molecular structure or carbon-carbon double bonds not.Hydrogenated nitrile-butadiene rubber not only has the oil resistant of paracril, performance such as wear-resisting, low temperature resistant, but also has good heat oxygen aging resistance, anti-ozone, chemical resistance and excellent dynamic performance.Hydrogenation degree can be with sulphur or peroxide cure at the hydrogenated nitrile-butadiene rubber below 96%, and the hydrogenant hydrogenated nitrile-butadiene rubber can only vulcanize (crosslinked) with superoxide, resin or high-energy radiation fully, is widely used in industrial circles such as automobile, oil field.
Carboxy nitrile rubber (XNBR) is the terpolymer of divinyl, vinyl cyanide and unsaturated acid (as vinylformic acid, methacrylic acid), and about 100～200 carbon atoms contain a carboxyl in the copolymer chain.The carboxyl of introducing in the carboxy nitrile rubber can improve its tensile strength, tearing toughness, hardness, wear resistance, tackiness and anti-ozone ageing.Carboxy nitrile rubber can be used Sulfur/promotor sulfuration, and also available polyvalent metal oxides sulfuration is mainly used in and makes sebific duct, adhesive tape, rubber roll, sealing member etc.
Chloroprene rubber (CR) is to be formed by the chloroprene monomer polymerization, owing to contain the chlorine atom in the molecule, thus have good antioxygen, ozone resistants, nonflammable, can put out certainly after catching fire, oil resistant, anti-solvent, acid and alkali-resistance and ageing-resistant, advantage such as resistance to air loss is good.The product of chloroprene rubber has dried glue form, and the latex form is also arranged.The chloroprene rubber of dried glue form is mainly used in makes oil resistant, heat-resisting, fire-retardant and anti abrasive pipe, band, pad etc.; Latex is mainly used in latex products such as making aqueous-based adhesive and gloves.
Vulcanizing agent can make between the rubber molecule and to produce crosslinkedly, forms the spatial tridimensional network, thereby improves the performance of rubber greatly, becomes the cross-linked rubber with good use value.Except some thermoplastic elastomer did not need sulfuration, natural rubber and various synthetic rubber all needed to vulcanize with vulcanizing agent.Vulcanizer can be divided into inorganic and organic two big classes: the inorganic sulphide agent comprises elementary sulfur, selenium, tellurium, and organic sulfurizing agent comprises sulfocompound, organo-peroxide, resene compound, metal oxide etc.Sulphur and sulfocompound can be used for the crosslinked of unsaturated rubber, organo-peroxide can be used for the crosslinked of saturated rubber, the resene compound can be used for the crosslinked of isoprene-isobutylene rubber, ethylene-propylene rubber(EPR), and metal oxide can be used for the crosslinked of Halogen rubber such as chloroprene rubber, brominated butyl rubber.
Whipping agent is to mix in the polymeric system, discharges gas in the course of processing in good time, makes macromolecular material form an analog assistant of micropore, and the mechanism that forms according to gas is divided into pneumatogen and chemical foaming agent.Chemical foaming agent is that those can discharge gases such as carbonic acid gas and nitrogen after thermal degradation, and forms the compound of pore in polymeric constituent.If the foam pore is the variation by the physical aspect of a certain material, i.e. the volatilization of the expansion by pressurized gas, liquid or solid dissolving forms, and so this material just is called pneumatogen.
Pneumatogen commonly used has lower boiling alkane and chloro fluorocarbon compound.Chemical foaming agent has the branch of inorganic foaming agent and organic blowing agent again.Inorganic foaming agent mainly contains sodium bicarbonate, and organic blowing agent can be divided into by chemical structure: azo-compound, as Cellmic C 121 (AC), Diisopropyl azodicarboxylate (ABN), diisopropyl azodiformate (DIPA), azoformic acid barium; Acyl callosity compounds, as 4,4 '-disulfonyl hydrazide diphenyl ether (OBSH), p-toluene sulfonyl hydrazide (TSH), benzol sulfohydrazide (BSH); Nitroso compound, as N, N '-dinitroso five methyne tetramines (DPT), N, N '-dinitrosoterephthalamine (NTA).
The preparation method of oil resistance foamable end cap sealing material is as follows: make broken-(down)rubber after at first oil resisting rubber (paracril, hydrogenated nitrile-butadiene rubber, carboxy nitrile rubber, chloroprene rubber) being plasticated with mill, Banbury mixer or screw plasticators, then broken-(down)rubber and vulcanizing agent, whipping agent, anti-aging agent, strengthening agent and softening oil are made rubber unvulcanizate with mill, Banbury mixer or screw plasticators after mixing, again through calendering, extrude later process rubber unvulcanizate made film.In order to prepare no end cap filter core, can earlier film be made blank through punching molding, refill and blank are placed carry out the sulfur foam moulding in the heated die again, obtaining incorporate environment-friendly type after the demoulding does not have the end cap filter core.
Summary of the invention
The objective of the invention is to solve the defective that polyvinyl chloride heating cure glue exists softening agent extraction, polyvinyl chloride high temperature degradation, thereby cause filter core and end cap bonding strength to reduce even come off, the problem that causes purifier to scrap in advance, a kind of oil resistance foamable end cap sealing material and preparation method thereof is provided, make the oil resistance foamable end cap sealing material for preparing through after die-cut, can with the refill sulfidization molding that in heated die, foams, produce and be applicable to that the environment-friendly type of air, fuel oil and oil filter do not have the end cap filter core.
Oil resistance foamable end cap sealing material proposed by the invention is by the feedstock production that comprises following component and parts by weight: 20～100 parts of oil resisting rubbers; 1～10 part of vulcanizing agent; 1～10 part of whipping agent; 1～10 part in anti-aging agent; 0～30 part of softening oil; 0～60 part of strengthening agent.
Described oil resisting rubber is the copolymer and the hydrogenation products thereof of homopolymer, divinyl and the vinyl cyanide of chloroprene, and the terpolymer of divinyl, vinyl cyanide and unsaturated acid, comprise one or more combinations in chloroprene rubber (CR), paracril (NBR), hydrogenated nitrile-butadiene rubber (HNBR) and the carboxy nitrile rubber (XNBR).The consumption of oil resisting rubber in mixture is 20～100 weight parts.
Described vulcanizing agent is can make between the rubber molecule to produce crosslinkedly, forms the cancellated material of stereoscopic three-dimensional.Organosulfur compound comprises morpholine derivative, the alkyl phenol sulfide of sulphur, thiurams, sulfur-bearing; Organo-peroxide is dicumyl peroxide (DCP), ditertiary butyl peroxide (DBP); The resin cure agent is resol (PF), melmac (MF); Metal oxide is zinc oxide (ZnO), magnesium oxide (MgO).Vulcanizing agent can be one or more combinations in above-mentioned organosulfur compound, organo-peroxide, resin cure agent and the metal oxide.The consumption of vulcanizing agent in mixture is 1～10 weight part.
Described whipping agent is can discharge gases such as carbonic acid gas and nitrogen after the thermal degradation, and forms the compound of pore in rubber components.Comprise Cellmic C 121 (AC), Diisopropyl azodicarboxylate (ABN), diisopropyl azodiformate (DIPA) azo compound.Whipping agent can also be 4,4 '-disulfonyl hydrazide diphenyl ether (OBSH), p-toluene sulfonyl hydrazide (TSH), benzol sulfohydrazide (BSH) hydrazide kind compound, and N, N '-dinitroso five methyne tetramines (DPT), N, N '-dinitrosoterephthalamine (NTA) nitroso compound.Whipping agent can be one or more combinations in azo compound, hydrazide kind compound and the nitroso compound.The consumption of whipping agent in mixture is 1～10 weight part.
Described anti-aging agent is meant and can suppresses or delay rubber autoxidation speed, the material that prolongs its work-ing life.Comprise anti-aging agent RD, antioxidant A W, antioxidant BLE ketoamine compounds; Antioxidant A, antioxidant D, anti-aging agent OD secondary diarylamine compounds; Antioxidant H, antioxidant D NP, antioxidant 4010NA, anti-aging agent 4020 Ursol D compounds, and antioxidant 2246, antioxidant 300, antioxidant DBH phenolic compound.Anti-aging agent can be one or more combinations in ketoamine compounds, secondary diarylamine compounds, Ursol D compounds and the phenolic compound.The consumption of anti-aging agent in mixture is 1～10 weight part.
The preparation method of oil resistance foamable end cap sealing material proposed by the invention, specifically be to make broken-(down)rubber after at first paracril, hydrogenated nitrile-butadiene rubber, carboxy nitrile rubber, chloroprene rubber being plasticated with mill, Banbury mixer or screw plasticators, then broken-(down)rubber and vulcanizing agent, whipping agent, anti-aging agent, softening oil and strengthening agent are made rubber unvulcanizate with mill, Banbury mixer or screw plasticators after mixing, again through the film that extrudes, the calendering later process is made rubber unvulcanizate oil resistance foamable end cap sealing material.
The detailed process of aforesaid method is as follows: at first, commercially available paracril, hydrogenated nitrile-butadiene rubber, carboxy nitrile rubber, chloroprene rubber are plasticated, adopting the plasticating temperature of mill is 20～60 ℃, and the time is 5～15 minutes; Adopting the plasticating temperature of Banbury mixer is 120～160 ℃, and the time is 5～15 minutes; When adopting screw plasticators, barrel zone temperature is 90～110 ℃, and head temperature is 80～90 ℃.Then, carry out one or more broken-(down)rubbers of 20～100 parts and 1～10 part of vulcanizing agent, 1～10 part of whipping agent, 1～10 part of anti-aging agent, 0～30 part of softening oil, 0～60 portion of strengthening agent mixing, adopting the melting temperature of mill is 20～60 ℃, and the time is 5～10 minutes; Adopting the melting temperature of Banbury mixer is 60～120 ℃, and the time is 5～10 minutes; When adopting the screw mixing machine, barrel zone temperature is 80～100 ℃, and head temperature is 70～80 ℃.At last, through later process such as extrusion, calendering rubber unvulcanizate is made the film of oil resistance foamable end cap sealing material, the extrusion temperature is 80～100 ℃, and rolling temperature is 60～80 ℃.
The present invention has the following advantages:
Do not contain the polyvinyl chloride (PVC) RESINS that is easy to move the softening agent of extraction and the carbonization of degrading easily in the oil resistance foamable end cap sealing material, have good oil-proofness and heat aging property; Oil resistance foamable end cap sealing material can extrude, the processing of calendering and punching molding, and material property can be regulated by changing each components contents; Film and refill can carry out the sulfur foam moulding in heated die, obtaining incorporate environment-friendly type after the demoulding does not have the end cap filter core; Not only in use assist engine to realize low emission performance by the no end cap filter core that filter paper and bipeltate constituted, and when work-ing life, termination went out of use, the no metal filtering core that can fully burn can not pollute to environment.
Embodiment
Now in conjunction with specific embodiments content of the present invention is described in detail.
Embodiment 1
Material provided by the invention is formulated by weight proportion by following raw material:
100 parts of paracril NBR
3 parts of sulphur S
2 parts of altaxs
3 parts of blowing agent ACs
1 part of anti-aging agent RD
1 part of antioxidant D NP
20 parts of liquid acrylonitrile butadiene rubber LNBR
20 parts of carbon black N550
At first NBR is plasticated with mill, plasticating temperature is 40 ℃, and the time is 5 minutes; Then NBR broken-(down)rubber and S, DM, AC, RD/DNP, LNBR and N550 are put the thick even slice of smashing after in 60 ℃ the mill mixing 10 minutes, obtain oil resistance foamable end cap sealing material.
Embodiment 2
Material provided by the invention is formulated by weight proportion by following raw material:
100 parts of hydrogenated nitrile-butadiene rubber HNBR
1 part of sulphur S
5 parts of superoxide DCP
1 part of vulkacit D
3 parts of blowing agent ACs
1 part of anti-aging agent RD
1 part of antioxidant D NP
20 parts of liquid acrylonitrile butadiene rubber LNBR
20 parts of carbon black N774
At first HNBR is plasticated with mill, plasticating temperature is 40 ℃, and the time is 5 minutes; The discharging after mixing 5 minutes in 60～100 ℃ Banbury mixer with HNBR broken-(down)rubber and D, AC, RD/DNP, LNBR and N774 then; The HNBR rubber unvulcanizate turns refining in 40 ℃ mill, the slice postcooling; Cooled sizing material adds S/DCP and carries out back mixing in 40 ℃ mill, thin-pass, put the thick even slice of smashing after playing the triangle bag, obtains oil resistance foamable end cap sealing material.
Embodiment 3
Material provided by the invention is formulated by weight proportion by following raw material:
100 parts of carboxy nitrile rubber XNBR
2 parts of sulphur S
3 parts of zinc oxide ZnO
2 parts of vulkacit Ds
3 parts of blowing agent ACs
1 part of anti-aging agent RD
1 part of antioxidant D NP
20 parts of liquid acrylonitrile butadiene rubber LNBR
White carbon black SiO
2NH
230 parts of O
At first XNBR is plasticated with mill, plasticating temperature is 40 ℃, and the time is 5 minutes; Then with XNBR broken-(down)rubber and S/ZnO, D, AC, RD/DNP, LNBR and SiO
2NH
2O was put the thick even slice of smashing after in 60 ℃ the mill mixing 10 minutes, obtain oil resistance foamable end cap sealing material.
Embodiment 4
Material provided by the invention is formulated by weight proportion by following raw material:
100 parts of chloroprene rubber CR
5 parts of zinc oxide ZnO
4 parts of magnesium oxide MgO
2 parts of vulkacit Ds
3 parts of blowing agent ACs
1 part of anti-aging agent RD
2 parts of antioxidant 4010NAs
15 parts of liquid acrylonitrile butadiene rubber LNBR
30 parts of carbon black N774
At first CR is plasticated with mill, plasticating temperature is 40 ℃, and the time is 5 minutes; Then CR broken-(down)rubber and ZnO/MgO, D, AC, RD/4010NA, LNBR and N774 are put the thick even slice of smashing after in 60 ℃ the mill mixing 10 minutes, obtain oil resistance foamable end cap sealing material.
Embodiment 5
Material provided by the invention is formulated by weight proportion by following raw material:
100 parts of paracril NBR
3 parts of sulphur S
1 part of altax
1 part of stearic acid HSt
3 parts of zinc oxide ZnO
3 parts of blowing agent ACs
2 parts of antioxidant D NP
10 parts of liquid acrylonitrile butadiene rubber LNBR
White carbon black SiO
2NH
220 parts of O
At first NBR is plasticated with mill, plasticating temperature is 40 ℃, and the time is 5 minutes; Then with NBR broken-(down)rubber and DM, HSt/ZnO, AC, DNP, LNBR and SiO
2NH
2O is discharging after mixing 5 minutes in 60～100 ℃ Banbury mixer; The NBR rubber unvulcanizate turns refining in 40 ℃ mill, the slice postcooling; Cooled sizing material adds S and carries out back mixing in 40 ℃ mill, thin-pass, put the thick even slice of smashing after playing the triangle bag, obtains oil resistance foamable end cap sealing material.
Embodiment 6
Material provided by the invention is formulated by weight proportion by following raw material:
100 parts of carboxy nitrile rubber XNBR
2 parts of sulphur S
1 part of stearic acid HSt
3 parts of zinc oxide ZnO
2 parts of vulkacit Ds
3 parts of blowing agent ACs
1 part of anti-aging agent RD
1 part of antioxidant D NP
10 parts of liquid acrylonitrile butadiene rubber LNBR
20 parts of carbon black N550
At first XNBR is plasticated with mill, plasticating temperature is 40 ℃, and the time is 5 minutes; Then XNBR broken-(down)rubber and S, HSt/ZnO, D, AC, RD/DNP, LNBR and N550 are put the thick even slice of smashing after in 40 ℃ the mill mixing 10 minutes, obtain oil resistance foamable end cap sealing material.
Embodiment 7
Material provided by the invention is formulated by weight proportion by following raw material:
100 parts of hydrogenated nitrile-butadiene rubber HNBR
1 part of sulphur S
7 parts of superoxide DCP
1 part of vulkacit D
2 parts of blowing agent ACs
1 part of anti-aging agent RD
1 part of antioxidant D NP
20 parts of carbon black N550
At first HNBR is plasticated with mill, plasticating temperature is 40 ℃, and the time is 5 minutes; Then HNBR broken-(down)rubber and S/DCP, D, AC, RD/DNP and N550 are put the thick even slice of smashing after in 40 ℃ the mill mixing 10 minutes, obtain oil resistance foamable end cap sealing material.
Embodiment 8
Material provided by the invention is formulated by weight proportion by following raw material:
100 parts of chloroprene rubber CR
5 parts of zinc oxide ZnO
4 parts of magnesium oxide MgO
2 parts of vulkacit Ds
2 parts of blowing agent ACs
1 part of anti-aging agent RD
2 parts of antioxidant 4010NAs
Lime carbonate CaCO
320 parts
At first CR is plasticated with mill, plasticating temperature is 40 ℃, and the time is 5 minutes; Then with CR broken-(down)rubber and ZnO/MgO, D, AC, RD/4010NA and CaCO
3After in 40 ℃ the mill mixing 10 minutes, put the thick even slice of smashing, obtain oil resistance foamable end cap sealing material.
Embodiment 9
Material provided by the invention is formulated by weight proportion by following raw material:
100 parts of paracril NBR
3 parts of sulphur S
1 part of altax
1 part of stearic acid HSt
3 parts of zinc oxide ZnO
2 parts of blowing agent ACs
2 parts of antioxidant D NP
At first NBR is plasticated with mill, plasticating temperature is 40 ℃, and the time is 5 minutes; The discharging after mixing 5 minutes in 60～100 ℃ Banbury mixer with NBR broken-(down)rubber and DM, HSt/ZnO, AC and DNP then; The NBR rubber unvulcanizate turns refining in 40 ℃ mill, the slice postcooling; Cooled sizing material adds S and carries out back mixing in 40 ℃ mill, thin-pass, put the thick even slice of smashing after playing the triangle bag, obtains oil resistance foamable end cap sealing material.
Claims (11)
1. oil resistance foamable end cap sealing material and preparation method thereof, this oil resistance foamable end cap sealing material be by certain part by weight with oil resisting rubber, vulcanizing agent, whipping agent, anti-aging agent, softening oil and strengthening agent, after certain mixing processing, obtain oil resistance foamable end cap sealing material.
2. material according to claim 1 and preparation method thereof is characterized in that the component of described end cap sealing material raw material and parts by weight are: 20～100 parts of oil resisting rubbers; 1～10 part of vulcanizing agent; 1～10 part of whipping agent; 1～10 part in anti-aging agent; 0～30 part of softening oil; 0～60 part of strengthening agent.
3. material according to claim 1 and preparation method thereof is characterized in that oil resisting rubber is one or more combinations in chloroprene rubber (CR), paracril (NBR), hydrogenated nitrile-butadiene rubber (HNBR), the carboxy nitrile rubber (XNBR).
4. material according to claim 1 and preparation method thereof is characterized in that vulcanizing agent is one or more combinations in sulphur (S), resol (PF), melmac (MF), zinc oxide (ZnO), magnesium oxide (MgO), dicumyl peroxide (DCP), the ditertiary butyl peroxide (DBP).
5. material according to claim 1 and preparation method thereof, it is characterized in that whipping agent is Cellmic C 121 (AC), Diisopropyl azodicarboxylate (ABN), diisopropyl azodiformate (DIPA), 4,4 '-disulfonyl hydrazide diphenyl ether (OBSH), p-toluene sulfonyl hydrazide (TSH), benzol sulfohydrazide (BSH), N, N '-dinitroso five methyne tetramines (DPT), N, one or more combinations among the N '-dinitrosoterephthalamine (NTA).
6. material according to claim 1 and preparation method thereof is characterized in that softening oil is one or more combinations in liquid acrylonitrile butadiene rubber (LNBR), low molecular weight polyethylene, oxidic polyethylene, the polyester softening agent.
7. material according to claim 1 and preparation method thereof is characterized in that strengthening agent is one or more combinations in carbon black, white carbon black, lime carbonate, talcum powder, the potter's clay.
8. material according to claim 1 and preparation method thereof is characterized in that with oil resisting rubber, vulcanizing agent, whipping agent, anti-aging agent, softening oil and strengthening agent mixing in mill, mixing temperature is 20～60 ℃ in proportion after the weighing.
9. material according to claim 1 and preparation method thereof is characterized in that with oil resisting rubber, vulcanizing agent, whipping agent, anti-aging agent, softening oil and strengthening agent mixing in Banbury mixer, the banburying temperature is 60～120 ℃ in proportion after the weighing.
10. material according to claim 1 and preparation method thereof, it is characterized in that oil resisting rubber, vulcanizing agent, whipping agent, anti-aging agent, softening oil and strengthening agent in proportion after the weighing, mixing in the screw mixing machine, barrel zone temperature is 80～100 ℃, and head temperature is 70～80 ℃.
11. material according to claim 1 and preparation method thereof, it is characterized in that oil resistance foamable end cap sealing material can adopt operations such as extrusion, calendering and impact briquetting to make film, film and refill carry out the sulfur foam moulding in heated die, obtain incorporate no end cap filter core after the demoulding, can be applicable to air, fuel oil and the oil filter of motor car engine.
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| CN101817944A (en) * | 2010-03-31 | 2010-09-01 | 尤建义 | Preparation technology of chloroprene rubber used for external rubber layer of rubber tube of automobile air conditioning |
| CN101880413A (en) * | 2010-05-24 | 2010-11-10 | 大连理工大学 | Sealant for high temperature pressurized leakage stop-up |
| CN102134328A (en) * | 2011-02-26 | 2011-07-27 | 福建师范大学 | Method for preparing micro-foaming nitrile elastomers |
| CN102229785A (en) * | 2011-05-13 | 2011-11-02 | 秦琪航 | Adhesive film for filter |
| CN102408594A (en) * | 2011-08-24 | 2012-04-11 | 安徽中鼎密封件股份有限公司 | Rubber material for fabricating vibration-proof rubber assembly used for fan in commercial air-conditioner |
| CN102585315A (en) * | 2012-01-16 | 2012-07-18 | 芜湖荣基密封***有限公司 | Oil-resisting heat-resisting seal piece size and preparation method thereof |
| CN103147345A (en) * | 2013-02-21 | 2013-06-12 | 舟山市海山密封材料有限公司 | Preparation technology of sealing material used for engines and flanges |
| CN103408819A (en) * | 2013-08-13 | 2013-11-27 | 安徽中鼎密封件股份有限公司 | Rubber sealing assembly between chainsaw carburetor and engine cylinder, and manufacturing method thereof |
| CN104098805A (en) * | 2014-07-03 | 2014-10-15 | 宁国市瑞普密封件有限公司 | Oil seal capable of automatically absorbing oil, and processing technology thereof |
| CN104974412A (en) * | 2015-07-27 | 2015-10-14 | 上海至正道化高分子材料股份有限公司 | Vulcanized oil-resistant flame-retardant locomotive cable sheath material and preparation method thereof |
| CN105315591A (en) * | 2014-07-16 | 2016-02-10 | 上海华化橡胶有限公司 | Oil resistant expandable sealing material and preparation method thereof |
| CN105542283A (en) * | 2016-01-25 | 2016-05-04 | 蚌埠市万达塑料制品有限公司 | Lateral sealing ring of plastic heat preservation bottle plug |
| CN106220932A (en) * | 2016-08-05 | 2016-12-14 | 蚌埠威尔特滤清器有限公司 | A kind of rubber seal for air filter |
| CN106832463A (en) * | 2017-01-09 | 2017-06-13 | 安徽中鼎密封件股份有限公司 | A kind of rubber seal of resistance to bio-fuel-oil material and preparation method thereof |
| CN108727816A (en) * | 2018-04-03 | 2018-11-02 | 南阳国宇密封发展有限公司 | A kind of no asbestos latex sealing material and preparation method thereof |
| CN109384983A (en) * | 2018-10-29 | 2019-02-26 | 四川隆盛科发实业有限公司 | A kind of aviation oil resistant high-low temperature resistant rubber and preparation method thereof |
| CN109912868A (en) * | 2019-03-28 | 2019-06-21 | 赞南科技(上海)有限公司 | Hydrogenated nitrile-butadiene rubber and unsaturated non-polar rubber are laminated compoiste adhering transition layer sizing |
| CN110483861A (en) * | 2019-09-26 | 2019-11-22 | 科诺思膜技术(厦门)有限公司 | A kind of nitrile rubber and preparation method thereof and sealing ring |
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| CN101880413A (en) * | 2010-05-24 | 2010-11-10 | 大连理工大学 | Sealant for high temperature pressurized leakage stop-up |
| CN102134328A (en) * | 2011-02-26 | 2011-07-27 | 福建师范大学 | Method for preparing micro-foaming nitrile elastomers |
| CN102229785A (en) * | 2011-05-13 | 2011-11-02 | 秦琪航 | Adhesive film for filter |
| CN102408594A (en) * | 2011-08-24 | 2012-04-11 | 安徽中鼎密封件股份有限公司 | Rubber material for fabricating vibration-proof rubber assembly used for fan in commercial air-conditioner |
| CN102408594B (en) * | 2011-08-24 | 2014-02-05 | 安徽中鼎密封件股份有限公司 | Rubber material for fabricating vibration-proof rubber assembly used for fan in commercial air-conditioner |
| CN102585315A (en) * | 2012-01-16 | 2012-07-18 | 芜湖荣基密封***有限公司 | Oil-resisting heat-resisting seal piece size and preparation method thereof |
| CN102585315B (en) * | 2012-01-16 | 2013-11-06 | 芜湖荣基密封***有限公司 | Oil-resisting heat-resisting seal piece size and preparation method thereof |
| CN103147345A (en) * | 2013-02-21 | 2013-06-12 | 舟山市海山密封材料有限公司 | Preparation technology of sealing material used for engines and flanges |
| CN103408819B (en) * | 2013-08-13 | 2015-10-28 | 安徽中鼎密封件股份有限公司 | Rubber seal element and manufacture method thereof between chain saw carburetor and engine cylinder |
| CN103408819A (en) * | 2013-08-13 | 2013-11-27 | 安徽中鼎密封件股份有限公司 | Rubber sealing assembly between chainsaw carburetor and engine cylinder, and manufacturing method thereof |
| CN104098805A (en) * | 2014-07-03 | 2014-10-15 | 宁国市瑞普密封件有限公司 | Oil seal capable of automatically absorbing oil, and processing technology thereof |
| CN105315591A (en) * | 2014-07-16 | 2016-02-10 | 上海华化橡胶有限公司 | Oil resistant expandable sealing material and preparation method thereof |
| CN104974412A (en) * | 2015-07-27 | 2015-10-14 | 上海至正道化高分子材料股份有限公司 | Vulcanized oil-resistant flame-retardant locomotive cable sheath material and preparation method thereof |
| CN105542283A (en) * | 2016-01-25 | 2016-05-04 | 蚌埠市万达塑料制品有限公司 | Lateral sealing ring of plastic heat preservation bottle plug |
| CN106220932A (en) * | 2016-08-05 | 2016-12-14 | 蚌埠威尔特滤清器有限公司 | A kind of rubber seal for air filter |
| CN106832463A (en) * | 2017-01-09 | 2017-06-13 | 安徽中鼎密封件股份有限公司 | A kind of rubber seal of resistance to bio-fuel-oil material and preparation method thereof |
| CN106832463B (en) * | 2017-01-09 | 2019-06-21 | 安徽中鼎密封件股份有限公司 | A kind of resistance to bio-fuel-oil rubber seal material and preparation method thereof |
| CN108727816A (en) * | 2018-04-03 | 2018-11-02 | 南阳国宇密封发展有限公司 | A kind of no asbestos latex sealing material and preparation method thereof |
| CN109384983A (en) * | 2018-10-29 | 2019-02-26 | 四川隆盛科发实业有限公司 | A kind of aviation oil resistant high-low temperature resistant rubber and preparation method thereof |
| CN109912868A (en) * | 2019-03-28 | 2019-06-21 | 赞南科技(上海)有限公司 | Hydrogenated nitrile-butadiene rubber and unsaturated non-polar rubber are laminated compoiste adhering transition layer sizing |
| CN110483861A (en) * | 2019-09-26 | 2019-11-22 | 科诺思膜技术(厦门)有限公司 | A kind of nitrile rubber and preparation method thereof and sealing ring |
| CN114805970A (en) * | 2021-12-31 | 2022-07-29 | 江苏恒丰橡胶制品有限公司 | Production process of rubber sealing ring of filter |
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