CN114634676A - Ethylene propylene rubber wiper strip and preparation method thereof - Google Patents
Ethylene propylene rubber wiper strip and preparation method thereof Download PDFInfo
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- CN114634676A CN114634676A CN202210473521.3A CN202210473521A CN114634676A CN 114634676 A CN114634676 A CN 114634676A CN 202210473521 A CN202210473521 A CN 202210473521A CN 114634676 A CN114634676 A CN 114634676A
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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
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
-
- 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
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
- C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
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- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
Abstract
The invention belongs to the technical field of wiper rubber, and particularly relates to an ethylene propylene rubber wiper strip and a preparation method thereof. The wiper strip is manufactured through the steps of raw material mixing, feeding, rubber discharging, rubber sheet mixing, rubber strip prefabrication and die pressing. Therefore, the invention simultaneously and greatly reduces the permanent tension deformation and the permanent compression deformation, and after the wiper strip is used for a period of time, the permanent deformation resistance of the wiper strip is strong, the recovery capability after compression/tension is strong, and the service life is also obviously prolonged.
Description
Technical Field
The invention belongs to the technical field of wiper rubber, and particularly relates to an ethylene propylene rubber wiper strip.
Background
When the windscreen wiper of the automobile is started, the driving device controls the windscreen wiper arm to swing left and right, and the windscreen wiper blades arranged on the windscreen wiper arm remove rain, snow, dust and other foreign matters on the automobile glass, so that the visual field of a driver is ensured. Since the portion of the wiper blade in direct contact with the glass surface is a strip rubber, the portion is called a wiper rubber strip (also called a wiper strip), and the quality and performance of the wiper strip determine the wiping effect of the wiper blade.
The wiper rubber strip is generally made of Natural Rubber (NR), Styrene Butadiene Rubber (SBR), polychloroprene rubber (CR), ethylene propylene rubber (EPM/EPDM), silicone rubber, and the like. The problem that its exists lies in, after using a period, under windscreen wiper arm pressure effect, when the windscreen wiper piece is the bending condition, the tensile and compression deformation volume of windscreen wiper strip is big, the anti deformability of windscreen wiper strip is less than, the resilience is poor after the deformation, can cause windscreen wiper strip inclination to change greatly, form and contrary to scraping and shovel and scrape, lead to water film thickness to increase like this on the one hand, it is dirty to scrape, water smoke appears on the glass face, make the driver can not clearly observe vehicle surrounding environment and road conditions, very easily the traffic accident appears, on the other hand, the noise is big when windscreen wiper strip deformation can cause windscreen wiper arm swing upset, bring the dysphoria sense for personnel in the car, and the deformation makes windscreen wiper strip life shorten to about 50 ten thousand times in addition, need frequent replacement.
Disclosure of Invention
The invention aims to provide an ethylene propylene rubber wiper strip with strong deformation resistance.
In order to achieve the purpose, the invention adopts the following technical scheme: the ethylene propylene rubber wiper strip comprises the following raw materials in parts by weight: 95-105 parts of ethylene propylene rubber, 4-6 parts of zinc oxide, 0.5-1.5 parts of stearic acid, 1-3 parts of an anti-aging agent, 10-70 parts of carbon black, 8-25 parts of a softening agent, 0.5-3 parts of an accelerator, 1-3 parts of a vulcanizing agent, 1-2 parts of a dispersing flowing agent, 1-20 parts of cerium oxide and 1-30 parts of bismuth oxide.
Through years of experimental research, the inventor of the patent finds that the wiper strip is mainly stressed and stretched when in use, the wiper strip made of the rubber material has higher tension permanent deformation and compression permanent deformation (the permanent deformation refers to irreversible deformation of an object under the action of the outside, and has tension permanent deformation and compression permanent deformation according to the property of an applied external force), and from the molecular level of the rubber, the rubber molecular chains can generate relative displacement of the molecular chains under the action of stress for a long time to generate deformation, and after the stress is removed, the recovery capability of the rubber molecules is reduced or even lost to generate permanent deformation, so that the material has poor deformation resistance and recovery capability and short service life. Therefore, the material has poor recovery capability and short service life. .
In order to improve the deformation resistance of rubber, a vulcanizing agent is usually added during the preparation of the rubber to improve the crosslinking density of the rubber, but the inventor adopts the rubber as a wiper strip, finds that the use effect is not good, and cannot solve the problem of high permanent deformation of the wiper strip. The inventors found that the reason why the problems could not be solved with the vulcanizing agent was: the addition of the vulcanizing agent has a limitation, the addition amount of the vulcanizing agent has a certain upper limit (for example, 100 parts by mass of ethylene propylene rubber, and 1-3 parts by mass of the vulcanizing agent), and when the addition amount exceeds 3 parts, the tensile permanent deformation and the compression permanent deformation of the rubber are not reduced any more, namely, the improvement of the deformation resistance of the rubber is limited, and the continuous addition of the vulcanizing agent can cause excessive substances in the rubber to be sprayed on the surface to form a heterochromatic state, so that the performance of the rubber is reduced on the contrary.
Therefore, through intensive research and experiments, the inventor finds a solution for improving the upper limit of the deformation resistance of the rubber, namely adding bismuth oxide and cerium oxide into the formula of the wiper strip at the same time.
Cerium oxide generally improves the heat resistance of rubber and has stronger resistance to thermal oxidation aging of rubber, and bismuth oxide generally replaces lead to be compounded with rubber so as to improve the protection performance of the rubber to X rays. The inventor further finds that the two substances have the function of enhancing the bonding force of rubber molecular chains: bismuth oxide belongs to metal oxide, has the characteristics of large specific surface area and high activity, can play a role in improving the crosslinking density in rubber, and enables the bonding force of rubber molecular chains after vulcanization to be stronger. The cerium oxide is used as a rare earth element, the stability is good, on one hand, the cerium oxide has good wettability in rubber, large interaction force with a rubber matrix, strong binding force and good interface binding, inorganic particles such as rigid chains generally play a role in enhancing the rubber, on the other hand, the reinforcing effect of the rare earth is related to the fact that rare earth elements contain a large amount of f orbitals, the special structure of the rare earth elements is easy to form a complex, and the 'instantaneous crosslinking density' of the rubber is increased during stretching, so that the tensile strength of the rubber is rapidly enhanced.
However, cerium oxide or bismuth oxide is added independently, the bonding position of the cerium oxide or bismuth oxide and an ethylene propylene rubber matrix is single, molecular chains of the cerium oxide or bismuth oxide can only form a single network structure, a composite network structure cannot be formed, and two permanent deformations of tension and compression cannot be reduced simultaneously. When the wiper rubber strip is used, the wiper rubber strip can simultaneously encounter stretching deformation and compression deformation, so that the two deformations are required to be reduced simultaneously, otherwise, the tensile deformation capability of the wiper rubber strip is still weaker when the wiper rubber strip is made into the wiper strip, and the problem provided by the invention cannot be solved.
Therefore, the two substances are added simultaneously, the two substances are combined with different molecular chain groups of the ethylene propylene rubber, the molecular chains are mutually crossed, a composite network structure can be formed, the bonding force on the molecular chain layer reaches an extremely high level, the material performance is reflected, the tension permanent deformation and the compression permanent deformation are simultaneously and greatly reduced, after the wiper strip is used for a period of time, the permanent deformation resistance of the wiper strip is strong, the recovery capability after compression/tension is strong, and the service life of the wiper strip is prolonged to about 130 ten thousand times from the previous 50 ten thousand times.
Furthermore, the anti-aging agent is 2,2, 4-trimethyl-1, 2 dihydroquinoline polymer, has excellent thermal oxidation aging resistance, and can increase the heat resistance of rubber.
Furthermore, the softening agent is paraffin oil, which can increase plasticity of the rubber compound and reduce viscosity.
Further, the accelerator is TAIC, and accelerates the vulcanization rate of the vulcanizing agent at the time of vulcanization.
Further, the dispersion flow agent is selected from DEOFLOW A, so that the dispersibility of the filler is improved.
Furthermore, the vulcanizing agent is BIBP, the vulcanizing time of the organic peroxide is short, and the heat resistance of vulcanized rubber is good.
Further, 1 part of cerium oxide and 30 parts of bismuth oxide; or 20 parts of cerium oxide and 1 part of bismuth oxide; or 10 parts of cerium oxide and 15 parts of bismuth oxide.
The invention also provides a preparation method of the ethylene propylene rubber wiper strip, which comprises the following steps:
1) preparing materials: 95-105 parts of ethylene propylene rubber, 4-6 parts of zinc oxide, 0.5-1.5 parts of stearic acid, 1-3 parts of an anti-aging agent, 10-70 parts of carbon black, 8-25 parts of a softening agent, 0.5-3 parts of an accelerator, 1-3 parts of a vulcanizing agent, 1-2 parts of a dispersing flowing agent, 1-20 parts of cerium oxide and 1-30 parts of bismuth oxide are prepared.
2) Mixing: putting ethylene propylene rubber into an enclosed rubber mixing mill, heating to 40-50 ℃, simultaneously adding zinc oxide, stearic acid, an anti-aging agent, cerium oxide and bismuth oxide, mixing and stirring for 3-4 minutes until the ethylene propylene rubber is in a viscous state;
3) feeding: continuously heating the closed rubber mixing mill to 65-75 ℃, adding carbon black, a softening agent and a dispersing flowing agent, and mixing for 4-5 minutes;
4) rubber discharging: when the internal rubber mixing mill is continuously heated to the temperature of 140-150 ℃, discharging the mixed rubber material in a viscous flow state from the internal rubber mixing mill, cooling to the temperature of less than or equal to 50 ℃, rolling the mixed rubber material into a rubber sheet with the thickness of 4-5 mm by using an open rubber mixing mill, and standing at the temperature of 0-35 ℃ for more than 16 hours to diffuse molecules among different substances;
5) mixing films: putting the rubber sheet into an internal rubber mixing mill, adding an accelerator and a vulcanizing agent at 50-60 ℃, mixing for 4-5 minutes, discharging rubber after the temperature reaches 85-95 ℃, rolling the mixed rubber material into a rubber sheet with the thickness of 4-5 mm by using an open rubber mixing mill, and standing the rubber sheet at 0-35 ℃ for more than 16 hours to enable molecules among different substances to diffuse;
6) prefabricating an adhesive tape: placing the rubber sheet into a rubber preforming machine, heating to 80-120 ℃, and then forming through a mouth mold of the rubber preforming machine to prepare a standard rubber strip;
7) rubber strip compression molding: and (3) putting the standard rubber strip into a wiper strip mold of a flat vulcanizing machine, heating and vulcanizing at 180-200 ℃ for 5-12 minutes, and discharging after finishing.
The preparation method adopts a segmented preparation process, so that the temperature of the rubber compound in the banburying chamber is easy to control, molecules are diffused through parking when the rubber sheet is prepared, the cross-linking effect of the raw materials is improved, and the quality stability and the uniformity of the rubber compound can be ensured.
Detailed Description
The present invention will now be described by way of non-limiting examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
First, make up
The following ingredients were used to prepare the raw materials for the ethylene propylene rubber wiper strips of examples 1,2 and 3, control 1 (only bismuth oxide was added), control 2 (only cerium oxide was added) and control 3 (no cerium oxide and no bismuth oxide were added), and the ingredients were as follows:
the compound raw material names corresponding to the compound raw material abbreviations in the ingredient tables are as follows:
DEOFLOW A: fatty alcohol ester joint lubricant
TAIC: triallylisocyanurate
BIBP: odorless DCP or crosslinking agent BIBP
Secondly, equipment preparation
Preparing and debugging a closed rubber mixing mill, an open rubber mixing mill, a rubber pre-forming machine and a flat vulcanizing machine.
Third, wiper strip preparation
(first) wiper strips of preparation examples 1,2, 3
According to the mixture ratio of the examples 1,2 and 3 in the ingredient table, the wiper strips of the examples 1,2 and 3 are respectively prepared according to the following steps.
1. Mixing: putting ethylene propylene rubber into an enclosed rubber mixing mill, heating to 40-50 ℃, simultaneously adding zinc oxide, stearic acid, 2, 4-trimethyl-1, 2 dihydroquinoline polymer, cerium oxide and bismuth oxide, mixing and stirring for 3-4 minutes until the ethylene propylene rubber is in a viscous state;
2. feeding: continuously heating the closed rubber mixing mill to 65-75 ℃, adding carbon black, paraffin oil and DEOFLOW A, and mixing for 4-5 minutes;
3. rubber discharging: when the internal rubber mixing mill is continuously heated to the temperature of 140-150 ℃, discharging the mixed rubber material in a viscous flow state from the internal rubber mixing mill, cooling to the temperature of less than or equal to 50 ℃, rolling the mixed rubber material into rubber sheets with the thickness of 4-5 mm by using an open rubber mixing mill, and standing for more than 16 hours to diffuse molecules among different substances;
4. mixing films: putting the rubber sheet into an internal rubber mixing mill, adding TAIC and BIBP at 50-60 ℃, mixing for 4-5 minutes, discharging rubber after the temperature reaches 85-95 ℃, rolling the mixed rubber material into a rubber sheet with the thickness of 4-5 mm by using an open rubber mixing mill, and standing the rubber sheet for more than 16 hours;
5. prefabricating an adhesive tape: placing the rubber sheet into a rubber preforming machine, heating to 80-120 ℃, and then forming through a mouth mold of the rubber preforming machine to prepare a standard rubber strip;
6. rubber strip compression molding: and (3) putting the standard rubber strip into a wiper strip mold of a flat vulcanizing machine, heating and vulcanizing at 180-200 ℃ for 5-12 minutes, and discharging after finishing so as to prepare the wiper strip.
The viscous flow state is a special term of polymer physical rheology, and refers to the mechanical state of amorphous polymer under the action of high temperature and large external force for a long time.
(II) wiper strip for preparing comparison group 1
The raw materials were prepared according to the formulation of control 1 in the formulation table, and the preparation method was the same as in examples 1,2, and 3, except that only bismuth oxide and no cerium oxide were added.
(III) wiper strip for preparing comparison group 2
The raw materials were prepared according to the formulation of control 2 in the formulation table, and the preparation method was the same as in examples 1,2, and 3, except that only cerium oxide was added and bismuth oxide was not added.
(IV) wiper strip for preparing comparison group 3
The raw materials were prepared according to the formulation of control 3 in the formulation table, and the preparation method was the same as in examples 1,2, and 3 except that no cerium oxide or cerium oxide was added.
Fourth, wiper strip performance test
The compression set and the tension set of the wiper strips of 6 groups in total are tested in the test examples 1 to 3 and the comparison groups 1 to 3, and the test method is as follows:
(1) compression set test: a wiper strip sample having a diameter of 29 mm. + -. 0.5mm and a height of 12.5 mm. + -. 0.5mm was prepared in accordance with the standard requirements of "GB/T7759.1-2015 determination of compression set of vulcanized rubber or thermoplastic rubber part 1: under normal temperature and high temperature conditions", and the compression ratio was 25%, and the test was carried out at a predetermined temperature (90 ℃ C.. times.22 h).
(2) Tensile set test: according to the standard requirement of GB/T528-containing 2009 vulcanized rubber or thermoplastic rubber tensile stress strain performance measurement, 3 wiper strip samples with the length of 10cm are taken, two marked lines with the distance of 5cm are drawn, the samples are clamped on a clamp and stretched by 50%, and the samples are placed in an oven at 90 ℃ for 48 hours after being installed for 15 minutes. After the test, the stretched state was maintained and returned to room temperature, and the film was relaxed. The measurement was carried out 30min after relaxation.
The test results were as follows:
| test items | Example 1 | Example 2 | Example 3 | Control group 1 | Control group 2 | Control group 3 |
| Compression set (%) | 10.3 | 9.2 | 6.3 | 12.7 | 11.4 | 16.7 |
| Tensile set (%) | 11.2 | 11.6 | 7.6 | 12.8 | 12.4 | 15.4 |
The test result shows that:
compression set (one):
the samples of example 1, example 2, and example 3 had compression set much less than the samples of control 1, control 2, and control 3:
(1) compared with the single addition of cerium oxide or bismuth oxide: the highest numerical value of example 1 in examples 1-3 and the lowest numerical value of control group 2 in control groups 1 and 2, so that compared with example 1 and control group 2, example 1 is reduced by 9% (calculated according to (11.4-10.3)/11.4), that is, in this test, the compression set can be reduced by 9% by adding cerium oxide and bismuth oxide at the same time, and the reduction is very obvious.
(2) Compared with no addition of cerium oxide or bismuth oxide: compared with the control group 3, the reduction of 38 percent (according to (16.7-10.3)/16.7) is higher in the example 1.
(II) permanent tensile set
The rubber samples of example 1, example 2, example 3 had much less tensile set than control 1, control 2, and control:
(1) compared with the single addition of cerium oxide or bismuth oxide: the numerical value of example 2 was the highest among examples 1 to 3, and the numerical value of control 2 was the lowest among controls 1 and 2. Thus, compared with example 2 and control group 2, example 2 is reduced by 6% (calculated according to (12.4-11.6)/12.4), and the reduction is very obvious.
(2) Compared with no addition of cerium oxide or bismuth oxide: compared with example 2 and control group 3, example 2 has a 24 percent (calculated according to (15.4-11.6)/15.4) reduction, and the reduction is higher.
In summary, the embodiments 1,2, and 3 of the present invention have significant effects in reducing the compression set and the tension set of the wiper rubber strip, and can effectively improve the permanent deformation resistance of the wiper strip.
The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. The ethylene propylene rubber wiper strip is characterized by comprising the following raw materials in parts by mass: 95-105 parts of ethylene propylene rubber, 4-6 parts of zinc oxide, 0.5-1.5 parts of stearic acid, 1-3 parts of an anti-aging agent, 10-70 parts of carbon black, 8-25 parts of a softening agent, 0.5-3 parts of an accelerator, 1-3 parts of a vulcanizing agent, 1-2 parts of a dispersing flowing agent, 1-20 parts of cerium oxide and 1-30 parts of bismuth oxide.
2. The ethylene propylene rubber wiper strip according to claim 1, wherein: the anti-aging agent is a 2,2, 4-trimethyl-1, 2 dihydroquinoline polymer.
3. The ethylene propylene rubber wiper strip according to claim 2, wherein: the softening agent is paraffin oil.
4. The ethylene propylene rubber wiper strip according to claim 3, wherein: the accelerator is TAIC.
5. The ethylene propylene rubber wiper strip according to claim 4, wherein: the vulcanizing agent is BIBP.
6. The ethylene propylene rubber wiper strip according to claim 5, wherein: the dispersion flow agent is DEOFLOW A.
7. The ethylene-propylene rubber wiper strip according to any one of claims 1 to 6, wherein: 1 part of cerium oxide and 30 parts of bismuth oxide; or 20 parts of cerium oxide and 1 part of bismuth oxide; or 10 parts of cerium oxide and 15 parts of bismuth oxide.
8. The preparation method of the ethylene propylene rubber wiper strip is characterized by comprising the following steps:
1) preparing materials: preparing each of the raw materials of claim 1;
2) mixing: putting ethylene propylene rubber into an enclosed rubber mixing mill, heating to 40-50 ℃, simultaneously adding zinc oxide, stearic acid, an anti-aging agent, cerium oxide and bismuth oxide, mixing and stirring for 3-4 minutes until the ethylene propylene rubber is in a viscous state;
3) feeding: continuously heating the closed rubber mixing mill to 65-75 ℃, adding carbon black, a softening agent and a dispersing flowing agent, and mixing for 4-5 minutes;
4) rubber discharging: continuously heating the closed rubber mixing mill to 140-150 ℃, discharging the mixed rubber material in a viscous flow state from the closed rubber mixing mill, cooling to be less than or equal to 50 ℃, rolling the mixed rubber material into rubber sheets with the thickness of 4-5 mm by using an open rubber mixing mill, and standing at 0-35 ℃ for more than 16 hours;
5) mixing films: putting the rubber sheet into an internal rubber mixing mill, adding an accelerator and a vulcanizing agent at 50-60 ℃, mixing for 4-5 minutes, discharging rubber after the temperature reaches 85-95 ℃, rolling the mixed rubber material into a rubber sheet with the thickness of 4-5 mm by using an open rubber mixing mill, and standing for more than 16 hours at 0-35 ℃;
6) prefabricating an adhesive tape: placing the rubber sheet into a rubber preforming machine, heating to 80-120 ℃, and then forming through a mouth mold of the rubber preforming machine to prepare a standard rubber strip;
7) rubber strip compression molding: and (3) putting the standard rubber strip into a wiper strip mold of a flat vulcanizing machine, heating and vulcanizing at 180-200 ℃ for 5-12 minutes, and discharging after finishing.
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991011349A2 (en) * | 1990-01-29 | 1991-08-08 | Alcan International Limited | Improved wiper blade and method of making same |
| US5093206A (en) * | 1990-03-09 | 1992-03-03 | E. I. Du Pont De Nemours And Company | Curable laminated article of epdm elastomer and ethylene-containing polymer |
| US5710218A (en) * | 1989-10-05 | 1998-01-20 | Mitsui Petrochemical Industries | Ethylene-propylene-diene rubber, elastomer composition and vulcanized rubber thereof |
| JP2000129046A (en) * | 1998-10-26 | 2000-05-09 | Mitsuboshi Belting Ltd | Rubber composition |
| US20020193490A1 (en) * | 2001-04-23 | 2002-12-19 | Bridgestone/Firestone, Inc. | High density metal oxide fillers in rubber compounds |
| JP2005280603A (en) * | 2004-03-30 | 2005-10-13 | Denso Corp | Wiper blade rubber |
| JP2006232074A (en) * | 2005-02-24 | 2006-09-07 | Car Mate Mfg Co Ltd | Wiper blade |
| CN102030949A (en) * | 2009-09-24 | 2011-04-27 | 上海骆氏减震件有限公司 | High-temperature resistant ethylene-propylene-diene monomer (EPDM) formula for lug of exhaust system and preparation method thereof |
| CN106633228A (en) * | 2016-12-23 | 2017-05-10 | 太仓冠联高分子材料有限公司 | Natural rubber compound applied to automobile wiper blades and preparation method thereof |
| JP2017082130A (en) * | 2015-10-29 | 2017-05-18 | 横浜ゴム株式会社 | Rubber composition for tire |
| WO2018130189A1 (en) * | 2017-01-13 | 2018-07-19 | 杭州星庐科技有限公司 | Rubber composite, processing, conveyor belt applying composite, and manufacturing method |
| CN108610562A (en) * | 2018-04-28 | 2018-10-02 | 南京金三力高分子科技有限公司 | A kind of low pressure becomes high temperature resistant EP rubbers material and preparation method thereof |
| US20190338110A1 (en) * | 2017-01-13 | 2019-11-07 | Hangzhou Xinglu Technologies Co., Ltd | Rubber composite, processing method, sealing element applying composite, and manufacturing method |
| CN111333962A (en) * | 2020-02-27 | 2020-06-26 | 中德（扬州）输送工程技术有限公司 | Modified wear-resistant foamed ethylene propylene diene monomer rubber and preparation method thereof |
| CN111849175A (en) * | 2020-07-16 | 2020-10-30 | 成都盛帮密封件股份有限公司 | Irradiation-resistant lead-free radiation shielding flexible material, and preparation method and application thereof |
| CN114163739A (en) * | 2021-11-25 | 2022-03-11 | 浙江天铁实业股份有限公司 | Ageing-resistant and high-low temperature-resistant rubber gasket material and preparation method thereof |
-
2022
- 2022-04-29 CN CN202210473521.3A patent/CN114634676B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5710218A (en) * | 1989-10-05 | 1998-01-20 | Mitsui Petrochemical Industries | Ethylene-propylene-diene rubber, elastomer composition and vulcanized rubber thereof |
| WO1991011349A2 (en) * | 1990-01-29 | 1991-08-08 | Alcan International Limited | Improved wiper blade and method of making same |
| US5093206A (en) * | 1990-03-09 | 1992-03-03 | E. I. Du Pont De Nemours And Company | Curable laminated article of epdm elastomer and ethylene-containing polymer |
| JP2000129046A (en) * | 1998-10-26 | 2000-05-09 | Mitsuboshi Belting Ltd | Rubber composition |
| US20020193490A1 (en) * | 2001-04-23 | 2002-12-19 | Bridgestone/Firestone, Inc. | High density metal oxide fillers in rubber compounds |
| JP2005280603A (en) * | 2004-03-30 | 2005-10-13 | Denso Corp | Wiper blade rubber |
| JP2006232074A (en) * | 2005-02-24 | 2006-09-07 | Car Mate Mfg Co Ltd | Wiper blade |
| CN102030949A (en) * | 2009-09-24 | 2011-04-27 | 上海骆氏减震件有限公司 | High-temperature resistant ethylene-propylene-diene monomer (EPDM) formula for lug of exhaust system and preparation method thereof |
| JP2017082130A (en) * | 2015-10-29 | 2017-05-18 | 横浜ゴム株式会社 | Rubber composition for tire |
| CN106633228A (en) * | 2016-12-23 | 2017-05-10 | 太仓冠联高分子材料有限公司 | Natural rubber compound applied to automobile wiper blades and preparation method thereof |
| WO2018130189A1 (en) * | 2017-01-13 | 2018-07-19 | 杭州星庐科技有限公司 | Rubber composite, processing, conveyor belt applying composite, and manufacturing method |
| US20190338110A1 (en) * | 2017-01-13 | 2019-11-07 | Hangzhou Xinglu Technologies Co., Ltd | Rubber composite, processing method, sealing element applying composite, and manufacturing method |
| CN108610562A (en) * | 2018-04-28 | 2018-10-02 | 南京金三力高分子科技有限公司 | A kind of low pressure becomes high temperature resistant EP rubbers material and preparation method thereof |
| CN111333962A (en) * | 2020-02-27 | 2020-06-26 | 中德（扬州）输送工程技术有限公司 | Modified wear-resistant foamed ethylene propylene diene monomer rubber and preparation method thereof |
| CN111849175A (en) * | 2020-07-16 | 2020-10-30 | 成都盛帮密封件股份有限公司 | Irradiation-resistant lead-free radiation shielding flexible material, and preparation method and application thereof |
| CN114163739A (en) * | 2021-11-25 | 2022-03-11 | 浙江天铁实业股份有限公司 | Ageing-resistant and high-low temperature-resistant rubber gasket material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 付海: "氧化铈在天然橡胶中的应用研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
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