CN106832607A - A kind of good ageing-resistant EPDM sebific ducts of heat endurance - Google Patents
A kind of good ageing-resistant EPDM sebific ducts of heat endurance Download PDFInfo
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- CN106832607A CN106832607A CN201611038254.8A CN201611038254A CN106832607A CN 106832607 A CN106832607 A CN 106832607A CN 201611038254 A CN201611038254 A CN 201611038254A CN 106832607 A CN106832607 A CN 106832607A
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2201/011—Nanostructured additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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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
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Abstract
The invention discloses a kind of good ageing-resistant EPDM sebific ducts of heat endurance, its raw material includes by weight:40 60 parts of EPDM, 5 15 parts of polytetrafluoroethylene (PTFE), 0.5 1.5 parts of sulphur, 0.1 0.2 parts of cumyl peroxide, 0.4 0.8 parts of accelerator TATD, 0.2 0.4 parts of accelerant N A22,105 25 parts of titanate coupling agent, 10 20 parts of modified graphite powder, 40 60 parts of nano silicon, 5 10 parts of ceramic powder, 28 parts of clay, 5 10 parts of nano kaoline, 12 parts of polyacrylonitrile, 12 parts of nano titanium oxide, 13 parts of anti-aging agent RD, 13 parts of age resistor ZMTI.The good ageing-resistant EPDM sebific ducts of heat endurance proposed by the present invention, not only heat endurance is fabulous, and rigidity is good, is unlikely to deform, while ageing-resistant performance is excellent, antibacterial, Anti- tarnishing are good.
Description
Technical field
The present invention relates to EPDM sebific duct technical fields, more particularly to a kind of good ageing-resistant EPDM sebific ducts of heat endurance.
Background technology
The EPDM sleeve pipes of cleaning solution are taken up on automobile due to added with cleaning solution, it is necessary to which use rigidity is unlikely to deform well, heat
The excellent material of good stability, anti-microbial property.As body of a motor car and engine structure are just becoming more and more compacter, EPDM sleeve pipes
Be designed to be suitable for working at a higher temperature, now with automobile temperature in use improve constantly trend result in EPDM
The temperature capability of sleeve pipe has requirement higher, and easy breed bacteria is used additionally, due to long-time, and automobile is in big bump and chance
To under collision situation, the requirement of mechanical strength to EPDM sleeve pipes is also higher.With big and medium-sized cities automobile use ratio more and more higher,
Promote the research and development of EPDM sleeve pipes and improve speed.In order to improve the higher and higher heat endurance of EPDM sleeve pipes and ageing-resistant performance
To cater to market needs, how to prepare that a kind of heat endurance is good, ageing-resistant performance is excellent, and antibiotic property is good, the good vapour of mechanical property
Car takes up cleaning solution EPDM sleeve pipes as the current technical issues that need to address.
The content of the invention
Based on the technical problem that background technology is present, the present invention proposes a kind of good ageing-resistant EPDM sebific ducts of heat endurance,
Not only heat endurance is fabulous, and rigidity is good, is unlikely to deform, while ageing-resistant performance is excellent, antibacterial, Anti- tarnishing are good.
A kind of good ageing-resistant EPDM sebific ducts of heat endurance proposed by the present invention, its raw material includes by weight:EPDM 40-
60 parts, polytetrafluoroethylene (PTFE) 5-15 parts, sulphur 0.5-1.5 parts, cumyl peroxide 0.1-0.2 parts, accelerator TATD 0.4-
0.8 part, 0.2-0.4 parts of accelerant N A22,2-5 parts of titanate coupling agent 105, modified graphite powder 10-20 parts, nanometer titanium dioxide
Silicon 40-60 parts, ceramic powder 5-10 parts, clay 2-8 parts, nano kaoline 5-10 parts, polyacrylonitrile 1-2 parts, nano titanium oxide
1-2 parts, anti-aging agent RD 1-3 parts, 1-3 parts of age resistor ZMTI.
Preferably, modified graphite powder is prepared using following technique:Silver nitrate solution and zinc nitrate solution are well mixed, then
Zeolite powder is added, regulation system pH value is 6.5-7.5, is heated up, and is mixed, and Muffle is then sent into deionized water washing, drying
Heated up in stove, insulation is down to room temperature and obtains pre-processing zeolite powder;Graphite powder, sodium nitrate, the concentrated sulfuric acid are mixed in ice-water bath and is stirred
Mix, heat up, add potassium permanganate stirring, add pretreatment zeolite powder, heat up, add sulfuric acid solution stirring, be cooled to room temperature,
Centrifugation, washing, spray drying obtains graphene oxide.
Preferably, modified graphite powder is prepared using following technique:Silver nitrate solution and zinc nitrate solution are well mixed, then
Zeolite powder is added, regulation system pH value is 6.5-7.5, be warming up to 55-65 DEG C of mixing 2-3h, deionized water washing, 90-95
DEG C drying, then to send into and be warming up to 500-540 DEG C in Muffle furnace, is incubated 20-40min, is down to room temperature and obtains pre-processing zeolite powder;
Graphite powder, sodium nitrate, the concentrated sulfuric acid are mixed into 5-15min in ice-water bath, 2-5 DEG C is warming up to, potassium permanganate stirring is added
30-60min, adds pretreatment zeolite powder, is warming up to 30-40 DEG C, adds sulfuric acid solution stirring 50-80min, is cooled to room
Temperature, centrifugation, washing, spray drying obtains graphene oxide.
Preferably, modified graphite powder is prepared using following technique:It is 0.8-1.2mol/L by weight by 20-40 parts of concentration
Silver nitrate solution and 15-35 parts of concentration be well mixed for the zinc nitrate solution of 1-1.4mol/L, add 5-15 parts of zeolite powder,
Regulation system pH value is 6.5-7.5, is warming up to 55-65 DEG C of mixing 2-3h, and deionized water is washed, 90-95 DEG C of drying, then
500-540 DEG C is warming up in feeding Muffle furnace, 20-40min is incubated, room temperature is down to and is obtained pre-processing zeolite powder;By weight will
8-14 parts of graphite powder, 1-5 parts of sodium nitrate, the 80-140 parts of concentrated sulfuric acid mix 5-15min in ice-water bath, are warming up to 2-5 DEG C,
2-10 parts of potassium permanganate stirring 30-60min is added, 1-5 parts of pretreatment zeolite powder is added, 30-40 DEG C is warming up to, 20- is added
40 parts of concentration are the sulfuric acid solution stirring 50-80min of 2-4wt%, are cooled to room temperature, are centrifuged, successively with deionized water, hydrochloric acid,
Deionized water is washed, and spray drying obtains graphene oxide.
Preferably, modified graphite powder, nano silicon, ceramic powder, clay, the weight ratio of nano kaoline are 12-18:
45-55:8-9:4-6:6-8.
Preferably, modified graphite powder, anti-aging agent RD, the weight ratio of age resistor ZMTI are 12-18:1.5-2.5:1.5-2.5.
Preferably, EPDM, polytetrafluoroethylene (PTFE), the weight ratio of titanate coupling agent 105, modified graphite powder are 45-55:8-
12:3-4:12-18.
The present invention is obtained using conventional fabrication process.
Because EPDM main chains are made up of chemically stable saturated hydrocarbons, contain unsaturated double-bond on side chain, and polytetrafluoro
The poor rigidity of ethene, easily deforms.The present invention with EPDM and polytetrafluoroethylene (PTFE) as major ingredient, by adding titanate coupling agent
105th, modified graphite powder mating reaction, can effectively promote EPDM to be cooperated with polytetrafluoroethylene (PTFE), make the present invention not only thermally-stabilised
Property it is fabulous, and rigidity it is good, be unlikely to deform, while ageing-resistant performance is excellent, antibacterial, Anti- tarnishing are good.
In modified graphite powder of the invention, after there is displacement reaction in zeolite powder and silver ion, zinc ion, though it is zeolite structured not
Change, but make the antibiotic property of modified zeolite powder good, and discoloration-resisting is excellent, contaminated using being difficult washed liquid for a long time
Color, while modified zeolite powder exists in the form of elementide, good sphericity, graphite powder after uniform particle diameter, with oxidation processes
Mixing good dispersion, can effectively promote it to be uniformly dispersed each other, mutual excellent adsorption, ensure fastness, antibiotic property
Meanwhile, its interfacial activity performance is good, and specific surface area is very big, while abundant epoxide functional group such as carboxyl and carbonyl is contained on surface
Deng so that modified graphite powder, titanate coupling agent 105, EPDM, the mutual bond strength of polytetrafluoroethylene (PTFE) are high, can effectively increasing
The rigidity of strong sleeve pipe of the present invention, and it is thermally-stabilised fabulous, and ageing-resistant performance is also extremely excellent;Modified graphite powder and nanometer titanium dioxide
Silicon, ceramic powder, clay, nano kaoline coordinate synergy, can increase mechanical strength of the present invention, effectively maintain rigidity and toughness
Balance, even if embrittlement will not also occur under strong bending function;Anti-aging agent RD, age resistor ZMTI are combined with modified graphite powder,
Can retain in the present invention well, so as to provide prolonged protection;Sulphur and cumyl peroxide, accelerator TATD,
Accelerant N A22 mating reactions, anti-incipient scorch is strong, and cure time is short, can improve the stress at definite elongation of vulcanizate, and vulcanizate is ageing-resistant
Property is excellent, and can improve the ageing-resistant performance of vulcanizate, and accelerator TATD contains the chain alkyl of HMW, and molecular weight is high,
Cure time be can effectively shorten with accelerator TATD, accelerant N A22 mating reactions, its scorch safety, Er Qie do not sacrificed but
Solubility in EPDM is high, can further enhance cross-link intensity of the invention, further enhances rigidity of the invention.
Specific embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of good ageing-resistant EPDM sebific ducts of heat endurance proposed by the present invention, its raw material includes by weight:EPDM 40
Part, 15 parts of polytetrafluoroethylene (PTFE), 0.5 part of sulphur, 0.2 part of cumyl peroxide, 0.4 part of accelerator TATD, accelerant N A22
0.4 part, 105 2 parts of titanate coupling agent, 20 parts of modified graphite powder, 40 parts of nano silicon, 10 parts of ceramic powder, 2 parts of clay,
10 parts of nano kaoline, 1 part of polyacrylonitrile, 2 parts of nano titanium oxide, 1 part of anti-aging agent RD, 3 parts of age resistor ZMTI.
Embodiment 2
A kind of good ageing-resistant EPDM sebific ducts of heat endurance proposed by the present invention, its raw material includes by weight:EPDM 60
Part, 5 parts of polytetrafluoroethylene (PTFE), 1.5 parts of sulphur, 0.1 part of cumyl peroxide, 0.8 part of accelerator TATD, accelerant N A22
0.2 part, 105 5 parts of titanate coupling agent, 10 parts of modified graphite powder, 60 parts of nano silicon, 5 parts of ceramic powder, 8 parts of clay,
5 parts of nano kaoline, 2 parts of polyacrylonitrile, 1 part of nano titanium oxide, 3 parts of anti-aging agent RD, 1 part of age resistor ZMTI.
Modified graphite powder is prepared using following technique:Silver nitrate solution and zinc nitrate solution are well mixed, boiling is added
Stone flour, regulation system pH value is 6.5-7.5, and intensification is mixed, deionized water washing, and liter in Muffle furnace is then sent into drying
Temperature, insulation is down to room temperature and obtains pre-processing zeolite powder;Graphite powder, sodium nitrate, the concentrated sulfuric acid are mixed in ice-water bath, is risen
Temperature, adds potassium permanganate stirring, adds pretreatment zeolite powder, heats up, and adds sulfuric acid solution stirring, is cooled to room temperature, is centrifuged,
Washing, spray drying obtains graphene oxide.
Embodiment 3
A kind of good ageing-resistant EPDM sebific ducts of heat endurance proposed by the present invention, its raw material includes by weight:EPDM 45
Part, 12 parts of polytetrafluoroethylene (PTFE), 0.8 part of sulphur, 0.17 part of cumyl peroxide, 0.5 part of accelerator TATD, accelerant N A22
0.35 part, 105 3 parts of titanate coupling agent, 18 parts of modified graphite powder, 45 parts of nano silicon, 9 parts of ceramic powder, 4 parts of clay,
8 parts of nano kaoline, 1.2 parts of polyacrylonitrile, 1.7 parts of nano titanium oxide, 1.5 parts of anti-aging agent RD, age resistor ZMTI 2.5
Part.
Modified graphite powder is prepared using following technique:By weight by 20 parts of concentration for 1.2mol/L silver nitrate solution and
15 parts of concentration are well mixed for the zinc nitrate solution of 1.4mol/L, add 5 parts of zeolite powders, and regulation system pH value is 6.5-7.5,
65 DEG C of mixing 2h are warming up to, deionized water washing, 95 DEG C of drying are then warming up to 500 DEG C, insulation in feeding Muffle furnace
40min, is down to room temperature and obtains pre-processing zeolite powder;By weight by 8 parts of graphite powders, 5 parts of sodium nitrate, 80 parts of concentrated sulfuric acids in frozen water
15min is mixed in bath, 2 DEG C are warming up to, 10 parts of potassium permanganate stirring 30min are added, 5 parts of pretreatment zeolite powders are added,
Be warming up to 30 DEG C, it is the sulfuric acid solution stirring 80min of 2wt% to add 40 parts of concentration, is cooled to room temperature, is centrifuged, spend successively from
Sub- water, hydrochloric acid, deionized water washing, spray drying obtain graphene oxide.
Embodiment 4
A kind of good ageing-resistant EPDM sebific ducts of heat endurance proposed by the present invention, its raw material includes by weight:EPDM 55
Part, 8 parts of polytetrafluoroethylene (PTFE), 1.2 parts of sulphur, 0.13 part of cumyl peroxide, 0.7 part of accelerator TATD, accelerant N A22
0.25 part, 105 4 parts of titanate coupling agent, 12 parts of modified graphite powder, 55 parts of nano silicon, 8 parts of ceramic powder, 6 parts of clay,
6 parts of nano kaoline, 1.8 parts of polyacrylonitrile, 1.3 parts of nano titanium oxide, 2.5 parts of anti-aging agent RD, age resistor ZMTI 1.5
Part.
Modified graphite powder is prepared using following technique:By weight by 40 parts of concentration for 0.8mol/L silver nitrate solution and
35 parts of concentration are well mixed for the zinc nitrate solution of 1mol/L, add 15 parts of zeolite powders, and regulation system pH value is 6.5-7.5,
55 DEG C of mixing 3h are warming up to, deionized water washing, 90 DEG C of drying are then warming up to 540 DEG C, insulation in feeding Muffle furnace
20min, is down to room temperature and obtains pre-processing zeolite powder;By weight by 14 parts of graphite powders, 1 part of sodium nitrate, 140 parts of concentrated sulfuric acids in ice
5min is mixed in water-bath, 5 DEG C are warming up to, 2 parts of potassium permanganate stirring 60min are added, 1 part of pretreatment zeolite powder is added,
Be warming up to 40 DEG C, it is the sulfuric acid solution stirring 50min of 4wt% to add 20 parts of concentration, is cooled to room temperature, is centrifuged, spend successively from
Sub- water, hydrochloric acid, deionized water washing, spray drying obtain graphene oxide.
Embodiment 5
A kind of good ageing-resistant EPDM sebific ducts of heat endurance proposed by the present invention, its raw material includes by weight:EPDM 50
Part, 10 parts of polytetrafluoroethylene (PTFE), 1 part of sulphur, 0.15 part of cumyl peroxide, 0.6 part of accelerator TATD, accelerant N A22
0.3 part, 105 3.5 parts of titanate coupling agent, 15 parts of modified graphite powder, 50 parts of nano silicon, 8.5 parts of ceramic powder, clay 5
Part, 7 parts of nano kaoline, 1.5 parts of polyacrylonitrile, 1.5 parts of nano titanium oxide, 2 parts of anti-aging agent RD, 2 parts of age resistor ZMTI.
Modified graphite powder is prepared using following technique:Silver nitrate solution and zinc nitrate solution are well mixed, boiling is added
Stone flour, regulation system pH value is 6.5-7.5, is warming up to 60 DEG C of mixing 2.5h, and deionized water is washed, 92 DEG C of drying, then
520 DEG C are warming up in feeding Muffle furnace, 30min is incubated, room temperature are down to and are obtained pre-processing zeolite powder;By graphite powder, sodium nitrate, dense
Sulfuric acid mixes 10min in ice-water bath, is warming up to 3 DEG C, adds potassium permanganate stirring 45min, adds pretreatment zeolite
Powder, is warming up to 35 DEG C, adds sulfuric acid solution stirring 65min, is cooled to room temperature, is centrifuged, and washing, spray drying obtains graphite oxide
Alkene.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (7)
1. good ageing-resistant EPDM sebific ducts of a kind of heat endurance, it is characterised in that its raw material includes by weight:EPDM 40-60
Part, polytetrafluoroethylene (PTFE) 5-15 parts, sulphur 0.5-1.5 parts, cumyl peroxide 0.1-0.2 parts, accelerator TATD 0.4-0.8
Part, 0.2-0.4 parts of accelerant N A22,2-5 parts of titanate coupling agent 105, modified graphite powder 10-20 parts, nano silicon
40-60 parts, ceramic powder 5-10 parts, clay 2-8 parts, nano kaoline 5-10 parts, polyacrylonitrile 1-2 parts, nano titanium oxide 1-2
Part, anti-aging agent RD 1-3 parts, 1-3 parts of age resistor ZMTI.
2. good ageing-resistant EPDM sebific ducts of heat endurance according to claim 1, it is characterised in that modified graphite powder is using as follows
It is prepared by technique:Silver nitrate solution and zinc nitrate solution are well mixed, zeolite powder is added, regulation system pH value are 6.5-7.5,
Heat up, mix, deionized water washing, drying is then heated up in feeding Muffle furnace, and insulation is down to room temperature and is pre-processed
Zeolite powder;Graphite powder, sodium nitrate, the concentrated sulfuric acid are mixed in ice-water bath, is heated up, add potassium permanganate stirring, added
Pretreatment zeolite powder, heats up, and adds sulfuric acid solution stirring, is cooled to room temperature, is centrifuged, and washing, spray drying obtains graphite oxide
Alkene.
3. good ageing-resistant EPDM sebific ducts of heat endurance according to claim 1 or claim 2, it is characterised in that modified graphite powder is used
It is prepared by following technique:Silver nitrate solution and zinc nitrate solution are well mixed, zeolite powder is added, regulation system pH value is 6.5-
7.5,55-65 DEG C of mixing 2-3h is warming up to, deionized water washing, 90-95 DEG C of drying is then warming up in feeding Muffle furnace
500-540 DEG C, 20-40min is incubated, is down to room temperature and obtains pre-processing zeolite powder;By graphite powder, sodium nitrate, the concentrated sulfuric acid in frozen water
5-15min is mixed in bath, 2-5 DEG C is warming up to, potassium permanganate stirring 30-60min is added, pretreatment zeolite powder is added,
30-40 DEG C is warming up to, sulfuric acid solution stirring 50-80min is added, room temperature is cooled to, is centrifuged, washing, spray drying is aoxidized
Graphene.
4. good ageing-resistant EPDM sebific ducts of the heat endurance according to claim any one of 1-3, it is characterised in that modified graphite powder
Prepared using following technique:It is the silver nitrate solution and 15-35 parts of concentration of 0.8-1.2mol/L by weight by 20-40 parts of concentration
For the zinc nitrate solution of 1-1.4mol/L is well mixed, 5-15 parts of zeolite powder is added, regulation system pH value is 6.5-7.5, is risen
Temperature to 55-65 DEG C of mixing 2-3h, deionized water washing, 90-95 DEG C of drying is then warming up to 500- in feeding Muffle furnace
540 DEG C, 20-40min is incubated, is down to room temperature and obtains pre-processing zeolite powder;By weight by 8-14 parts of graphite powder, 1-5 parts of nitric acid
Sodium, 80-140 a part concentrated sulfuric acid mix 5-15min in ice-water bath, are warming up to 2-5 DEG C, add 2-10 parts of potassium permanganate stirring
30-60min, adds 1-5 parts of pretreatment zeolite powder, is warming up to 30-40 DEG C, and it is the sulfuric acid of 2-4wt% to add 20-40 parts of concentration
Solution stirs 50-80min, is cooled to room temperature, is centrifuged, and is washed with deionized water, hydrochloric acid, deionized water successively, is spray-dried
To graphene oxide.
5. good ageing-resistant EPDM sebific ducts of the heat endurance according to claim any one of 1-4, it is characterised in that modified graphite
Powder, nano silicon, ceramic powder, clay, the weight ratio of nano kaoline are 12-18:45-55:8-9:4-6:6-8.
6. good ageing-resistant EPDM sebific ducts of the heat endurance according to claim any one of 1-5, it is characterised in that modified graphite
Powder, anti-aging agent RD, the weight ratio of age resistor ZMTI are 12-18:1.5-2.5:1.5-2.5.
7. good ageing-resistant EPDM sebific ducts of the heat endurance according to claim any one of 1-6, it is characterised in that EPDM, poly- four
PVF, the weight ratio of titanate coupling agent 105, modified graphite powder are 45-55:8-12:3-4:12-18.
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CN104194076A (en) * | 2014-09-22 | 2014-12-10 | 安徽电气集团股份有限公司 | High-strength shock-resistance flame retardant modified natural rubber material |
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