CN104004277A - Rubber sealing strip composition and preparation method thereof - Google Patents
Rubber sealing strip composition and preparation method thereof Download PDFInfo
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- CN104004277A CN104004277A CN201410252194.4A CN201410252194A CN104004277A CN 104004277 A CN104004277 A CN 104004277A CN 201410252194 A CN201410252194 A CN 201410252194A CN 104004277 A CN104004277 A CN 104004277A
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
- C08L2201/08—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
- C08L2205/03—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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a rubber sealing strip composition. The rubber sealing strip composition is prepared from the following raw materials in parts by weight: 85-90 parts of ethylene-propylene diene monomer (EPDM), 10-15 parts of thermoplastic vulcanizate (TPV) thermoplastic elastomer, 2-5 parts of poly alpha-olefin modified liquid, 1-1.5 parts of imidazole anti-aging agent, 1-2 parts of amine anti-aging agent, 0.5-1.5 parts of stearic acid, 7-10 parts of active agent, 1-1.5 parts of anti-ultraviolet auxiliary, 5-15 parts of titanium dioxide, 90-130 parts of reinforcing agent, 10-15 parts of plasticizer, 0.5-1 part of vulcanizing agent and 4-6 parts of accelerant. A preparation method of the rubber sealing strip composition comprises the following step: mixing by adopting an internal mixer or an open mill. The rubber sealing strip composition has the advantages that materials are simple and clear, no especially expensive materials are needed to be added, the whole production process is convenient in operation, no special processing technology is needed, the product dimension is stable and odour is less.
Description
Technical field
The present invention relates to a kind of caulking gum product, specifically, is a kind of high durometer rubber sealed strip composition and method of making the same of expressing technique superior performance.
Background technology
Terpolymer EP rubber (EPDM) is (condition such as high temperature, low temperature, humidity, daylight, ozone) rubber clone that aging patience is good under a kind of various condition, the resistance to elevated temperatures of terpolymer EP rubber increases along with the increase of synthetical glue ethylene content, less its resistance to low temperature of ethylene content is better on the contrary, and ozone resistance is best in general synthetic rubber.In sealed strip industry, high rigidity ethylene-propylene rubber(EPR) is extruded formula now, expressing technique performance, poor fluidity in the sealed strip product of certain structures, extrude cross dimensions unstable, this class problem especially in the sizing material more than shore hardness 95 degree performance more obvious, part technician selects to add polyethylene or high styrene resin solves problems, but can bring product to have the problem of ' the hard summer in winter is soft ' with polyethylene or high styrene resin, and weather resisteant decline.Also useful reactive resol improves, but improve in this way the drawback of bringing is, product odour is large, and the one-tenth of product is grouped into and can not passes through the environmental protection banned substance requirement of European Union.
Chinese patent literature CN201310400595.5, the date of application is on September 6th, 2013, patent name is a kind of production method of ethylene-propylene diene reclaimed rubber sealed strip, discloses a kind of production method of regenerated rubber sealed strip.But about the preparation method of dimensional stabilizing, rubber seal bar composition that smell is low, yet there are no report.
Summary of the invention
The object of the invention is for deficiency of the prior art, provide one can solve high durometer rubber sealed strip expressing technique performance, poor fluidity, product cross dimensions is unstable, and can ensure the rubber seal bar composition of the dimensional stability of product and the advantage of low smell.
One object more of the present invention is that a kind of preparation method of above-mentioned rubber seal bar composition is provided.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of rubber seal bar composition, described composition is made up of the raw material of following weight part,
The promoting agent of the amines antioxidants of the polyalphaolefin modification liquid of the terpolymer EP rubber (EPDM) of 85-90 mass parts, the TPV thermoplastic elastomer of 10-15 mass parts, 2-5 mass parts, the imidazoles anti-aging agent of 1-1.5 part, 1-2 mass parts, the stearic acid of 0.5-1.5 mass parts, 7-10 mass parts, 1-1.5 part uvioresistant auxiliary agent, 5 ~ 15 parts of titanium dioxides, the strengthening agent of 90-130 mass parts, softening agent, the vulcanizing agent of 0.5-1 mass parts and the promotor of 4-6 mass parts of 10-15 mass parts.
The K8570C that described terpolymer EP rubber (EPDM) is DSM.
The 121-85M that described TPV thermoplastic elastomer is Exxon
Described benzimidazoles anti-aging agent is 2-mercaptobenzimidazole.
Described is right to amines antioxidants, to '-diisopropylbenzyl pentanoic, N-phenyl-N '-cyclohexyl Ursol D or N, the one in N ' Ursol D.
Described stearic acid is stearic acid 1801.
Described promoting agent is active zinc flower and polyoxyethylene glycol PEG4000.
Described strengthening agent is carbon black N770 and carbon black N550.
Described softening agent is 500# paraffin oil.
Described vulcanizing agent is insoluble sulfur.
Described promotor is thiuram type accelerator, thiazole accelerator, thio-based promotor.
Described promotor is Vulcanization accelerator TMTD, altax, accelerant B Z, promotor PZ, accelerant CZ and vulkacit D TDM.
For realizing above-mentioned second object, the technical scheme that the present invention takes is:
With mixer mixing or mill mixing, it is characterized in that:
Mixer mixing: by quantitative terpolymer EP rubber, TPV elastomerics and polyalphaolefin modification liquid drop into banburying chamber, premix in advance, premix temperature takes out and parks keep 180-240s more than 80 DEG C after, cooling more than 2 hours, then first add carbon black and the oil of half amount to carry out mixing 120-180s, at remaining small powder, carbon black and softening agent add binder removal after mixing 240-360s, after cooling, park and add again the vulcanizing agent of above-mentioned mass parts and promotor to carry out mixer mixing 140-180s above at least 12 hours, wherein banburying chamber's temperature is 60-90 DEG C, then play 3 of triangle bags in the machine thin-pass of beginning to pratise and descend afterwards sheet or shaping, begin to pratise machine temperature below 60 DEG C.
The invention has the advantages that:
1, material of the present invention is simple and clear, does not need to add especially expensive material.
2, whole production process of the present invention is easy to operate, does not need special complete processing.
3, the dimensional stabilizing of product of the present invention and smell are low.
Embodiment
the preparation of 1 one kinds of rubber seal bar compositions of embodiment
The terpolymer EP rubber of 90 mass parts, the TPV thermoplastic elastomer of 10 mass parts, the polyalphaolefin modification liquid of 2 mass parts, the imidazoles anti-aging agent of 1.5 mass parts, the amines antioxidants of 1 mass parts, the stearic acid of 1 mass parts, the zinc oxide of 5 mass parts, the polyoxyethylene glycol of 2 mass parts, the uvioresistant auxiliary agent of 1 mass parts, the titanium dioxide of 5 mass parts, the carbon black N770 of 80 mass parts, the carbon black N550 of 10 mass parts, the softening agent of 12 mass parts, the vulcanizing agent of 0.5 mass parts, the Vulcanization accelerator TMTD of 0.6 mass parts, the altax of 0.5 mass parts, the accelerant B Z of 0.5 mass parts, the promotor PZ of 0.8 mass parts, the accelerant CZ of 1.2 mass parts, the vulkacit D TDM of 1 mass parts.
the preparation of 2 one kinds of rubber seal bar compositions of embodiment
The terpolymer EP rubber of 90 mass parts, the TPV thermoplastic elastomer of 10 mass parts, the polyalphaolefin modification liquid of 4 mass parts, the imidazoles anti-aging agent of 1.5 mass parts, the amines antioxidants of 2 mass parts, the stearic acid of 1.5 mass parts, the zinc oxide of 5 mass parts, the polyoxyethylene glycol of 2 mass parts, the uvioresistant auxiliary agent of 1.5 mass parts, the titanium dioxide of 8 mass parts, the carbon black N770 of 86 mass parts, the carbon black N550 of 32 mass parts, the softening agent of 12 mass parts, the vulcanizing agent of 0.5 mass parts, the Vulcanization accelerator TMTD of 0.6 mass parts, the altax of 1 mass parts, the accelerant B Z of 1 mass parts, the promotor PZ of 0.8 mass parts, the accelerant CZ of 1.2 mass parts, the vulkacit D TDM of 1.5 mass parts.
the preparation of 3 one kinds of rubber seal bar compositions of embodiment
The terpolymer EP rubber of 85 mass parts, the TPV thermoplastic elastomer of 15 mass parts, the polyalphaolefin modification liquid of 5 mass parts, the imidazoles anti-aging agent of 1.5 mass parts, the amines antioxidants of 1 mass parts, the stearic acid of 1.5 mass parts, the zinc oxide of 6 mass parts, the polyoxyethylene glycol of 3 mass parts, the uvioresistant auxiliary agent of 1.5 mass parts, the titanium dioxide of 12 mass parts, the carbon black N770 of 86 mass parts, the carbon black N550 of 32 mass parts, the softening agent of 15 mass parts, the vulcanizing agent of 0.8 mass parts, the Vulcanization accelerator TMTD of 0.6 mass parts, the altax of 1 mass parts, the accelerant B Z of 1 mass parts, the promotor PZ of 0.6 mass parts, the accelerant CZ of 1.2 mass parts, the vulkacit D TDM of 1.8 mass parts.
the preparation of 4 one kinds of rubber seal bar compositions of embodiment
The terpolymer EP rubber of 85 mass parts, the TPV thermoplastic elastomer of 15 mass parts, the polyalphaolefin modification liquid of 4 mass parts, the imidazoles anti-aging agent of 1.5 mass parts, the amines antioxidants of 1 mass parts, the stearic acid of 1.5 mass parts, the zinc oxide of 6 mass parts, the polyoxyethylene glycol of 3 mass parts, the uvioresistant auxiliary agent of 1.5 mass parts, the titanium dioxide of 15 mass parts, the carbon black N770 of 86 mass parts, the carbon black N550 of 32 mass parts, the softening agent of 15 mass parts, the vulcanizing agent of 1 mass parts, the Vulcanization accelerator TMTD of 0.6 mass parts, the altax of 1.2 mass parts, the accelerant B Z of 1 mass parts, the promotor PZ of 0.6 mass parts, the accelerant CZ of 1.2 mass parts, the vulkacit D TDM of 2 mass parts.
the preparation of 5 one kinds of rubber seal bar compositions of embodiment
The terpolymer EP rubber of 90 mass parts, the TPV thermoplastic elastomer of 10 mass parts, the polyalphaolefin modification liquid of 2 mass parts, the imidazoles anti-aging agent of 1.5 mass parts, the amines antioxidants of 1 mass parts, the stearic acid of 0.5 mass parts, the zinc oxide of 6 mass parts, the polyoxyethylene glycol of 2 mass parts, the uvioresistant auxiliary agent of 1.5 mass parts, the titanium dioxide of 12 mass parts, the carbon black N770 of 90 mass parts, the carbon black N550 of 30 mass parts, the softening agent of 10 mass parts, the vulcanizing agent of 1 mass parts, the Vulcanization accelerator TMTD of 0.6 mass parts, the altax of 1.2 mass parts, the accelerant B Z of 1 mass parts, the promotor PZ of 0.6 mass parts, the accelerant CZ of 1.2 mass parts, the vulkacit D TDM of 1.5 mass parts.
the preparation of 6 one kinds of rubber seal bar compositions of embodiment
The terpolymer EP rubber of 90 mass parts, the TPV thermoplastic elastomer of 10 mass parts, the polyalphaolefin modification liquid of 2 mass parts, the imidazoles anti-aging agent of 1 mass parts, the amines antioxidants of 2 mass parts, the stearic acid of 1.5 mass parts, the zinc oxide of 7 mass parts, the polyoxyethylene glycol of 3 mass parts, the uvioresistant auxiliary agent of 1 mass parts, the titanium dioxide of 12 mass parts, the carbon black N770 of 90 mass parts, the carbon black N550 of 30 mass parts, the softening agent of 10 mass parts, the vulcanizing agent of 0.8 mass parts, the Vulcanization accelerator TMTD of 0.6 mass parts, the altax of 1.2 mass parts, the accelerant B Z of 1 mass parts, the promotor PZ of 0.6 mass parts, the accelerant CZ of 1.2 mass parts, the vulkacit D TDM of 1.5 mass parts.
the preparation method of 7 one kinds of rubber seal bar compositions of embodiment
Get any described rubber seal bar composition of embodiment 1-6, by quantitative terpolymer EP rubber, TPV elastomerics and polyalphaolefin modification liquid drop into banburying chamber, premix in advance, premix temperature takes out and parks keep 180-240s more than 80 DEG C after, cooling more than 2 hours, then first add carbon black and the oil of half amount to carry out mixing 120-180s, at remaining small powder, carbon black and softening agent add binder removal after mixing 240-360s, after cooling, park and add again the vulcanizing agent of above-mentioned mass parts and promotor to carry out mixer mixing 140-180s above at least 12 hours, wherein banburying chamber's temperature is 60-90 DEG C, then play 3 of triangle bags in the machine thin-pass of beginning to pratise and descend afterwards sheet or shaping, begin to pratise machine temperature below 60 DEG C.
the various performance parameters test of a kind of rubber weather strip of embodiment 8 the present invention
The rubber that composition in embodiment 1-6 is prepared rubber UV test experiments under 240h × 1000w/m2 condition product appearance without the relevant abnormalities such as variable color, crackle change, material under 150 DEG C × 70h thermal ageing condition; Resistance to ozone (40 ± 1) DEG C × (200 ± 5) PPhm × 20% stretching × 100h is without be full of cracks, and smell test is in the scope of 3-4 level.
Sizing material in embodiment 1-6 obviously increases through microwave vulcanization product surface smooth finish.Expressing technique performance is especially good, and cross dimensions is stable, surface is almost without pit.The smell test of product can reach the standard-required of 3 ~ 4 grades, meets automobile industry application requiring.Spend product when above in hardness 95 and meet test request through the illumination experiment of resistance to UV.
It should be noted that, the general physical property measurement of rubber, thermal ageing and resistance to ozone are tested according to ASTM D2000 standard implementation; UV illumination experiment is with reference to DIN75220 standard implementation, and smell test VDA270 carries out.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the inventive method; can also make some improvement and supplement, these improvement and the supplementary protection scope of the present invention that also should be considered as.
Claims (10)
1. a rubber seal bar composition, it is characterized in that, described composition is made up of the raw material of following weight part, the terpolymer EP rubber (EPDM) of 85-90 mass parts, the TPV thermoplastic elastomer of 10-15 mass parts, the polyalphaolefin modification liquid of 2-5 mass parts, the imidazoles anti-aging agent of 1-1.5 part, the amines antioxidants of 1-2 mass parts, the stearic acid of 0.5-1.5 mass parts, the promoting agent of 7-10 mass parts, 1-1.5 part uvioresistant auxiliary agent, 5 ~ 15 parts of titanium dioxides, the strengthening agent of 90-130 mass parts, the softening agent of 10-15 mass parts, the promotor of the vulcanizing agent of 0.5-1 mass parts and 4-6 mass parts.
2. according to the composition described in claims 1, it is characterized in that, the K8570C that described terpolymer EP rubber (EPDM) is DSM, the 121-85M that described TPV thermoplastic elastomer is Exxon, described benzimidazoles anti-aging agent is 2-mercaptobenzimidazole.
3. according to the composition described in claims 1, it is characterized in that, described is right to amines antioxidants, right '-diisopropylbenzyl pentanoic, N-phenyl-N '-cyclohexyl Ursol D or N, one in N ' Ursol D, described stearic acid is stearic acid 1801, and described promoting agent is active zinc flower and polyoxyethylene glycol PEG4000.
4. according to the composition described in claims 1, it is characterized in that, described strengthening agent is carbon black N770 and carbon black N550.
5. according to the composition described in claims 1, it is characterized in that, described softening agent is 500# paraffin oil.
6. according to the composition described in claims 1, it is characterized in that, described vulcanizing agent is insoluble sulfur.
7. according to the composition described in claims 1, it is characterized in that, described promotor is thiuram type accelerator, thiazole accelerator, thio-based promotor.
8. according to the composition described in claims 1, it is characterized in that, described promotor is Vulcanization accelerator TMTD, altax, accelerant B Z, promotor PZ, accelerant CZ and vulkacit D TDM.
9. the preparation method of the arbitrary described composition of claims 1-8, is characterized in that, adopts mixer mixing or mill mixing.
10. according to the preparation method described in claims 9, it is characterized in that, described mixer mixing is, by quantitative terpolymer EP rubber, TPV elastomerics and polyalphaolefin modification liquid drop into banburying chamber, premix in advance, premix temperature takes out and parks keep 180-240s more than 80 DEG C after, cooling more than 2 hours, then first add carbon black and the oil of half amount to carry out mixing 120-180s, at remaining small powder, carbon black and softening agent add binder removal after mixing 240-360s, after cooling, park and add again the vulcanizing agent of above-mentioned mass parts and promotor to carry out mixer mixing 140-180s above at least 12 hours, wherein banburying chamber's temperature is 60-90 DEG C, then play 3 of triangle bags in the machine thin-pass of beginning to pratise and descend afterwards sheet or shaping, begin to pratise machine temperature below 60 DEG C.
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| CN201410252194.4A CN104004277A (en) | 2014-06-09 | 2014-06-09 | Rubber sealing strip composition and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104231454A (en) * | 2014-09-23 | 2014-12-24 | 太仓荣南密封件科技有限公司 | EPDM (Ethylene-Propylene-Diene Monomer) white sponge strip for automobile air conditioner and preparation method of EPDM white sponge strip |
| CN106167584A (en) * | 2016-07-19 | 2016-11-30 | 合肥毅创钣金科技有限公司 | A kind of cladding titanium dioxide strengthens the sealing strip of resistance to UV aging |
| CN109627605A (en) * | 2018-12-12 | 2019-04-16 | 常熟市海虞橡胶有限公司 | A kind of low VOC sealing strip rubber compound of low smell |
| CN110079025A (en) * | 2019-06-03 | 2019-08-02 | 胡迈超 | A kind of ageing-resistant EPT rubber packing item and preparation method thereof |
| CN110511494A (en) * | 2019-09-09 | 2019-11-29 | 徐州工业职业技术学院 | A kind of high light aging resisting rubber material and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231454A (en) * | 2014-09-23 | 2014-12-24 | 太仓荣南密封件科技有限公司 | EPDM (Ethylene-Propylene-Diene Monomer) white sponge strip for automobile air conditioner and preparation method of EPDM white sponge strip |
| CN106167584A (en) * | 2016-07-19 | 2016-11-30 | 合肥毅创钣金科技有限公司 | A kind of cladding titanium dioxide strengthens the sealing strip of resistance to UV aging |
| CN109627605A (en) * | 2018-12-12 | 2019-04-16 | 常熟市海虞橡胶有限公司 | A kind of low VOC sealing strip rubber compound of low smell |
| CN110079025A (en) * | 2019-06-03 | 2019-08-02 | 胡迈超 | A kind of ageing-resistant EPT rubber packing item and preparation method thereof |
| CN110079025B (en) * | 2019-06-03 | 2021-10-08 | 佛山市美润橡塑科技发展有限公司 | Aging-resistant ethylene propylene diene monomer rubber sealing strip and preparation method thereof |
| CN110511494A (en) * | 2019-09-09 | 2019-11-29 | 徐州工业职业技术学院 | A kind of high light aging resisting rubber material and preparation method thereof |
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Application publication date: 20140827 |