CN114957866A - Ethylene propylene diene hard rubber - Google Patents
Ethylene propylene diene hard rubber Download PDFInfo
- Publication number
- CN114957866A CN114957866A CN202210769575.4A CN202210769575A CN114957866A CN 114957866 A CN114957866 A CN 114957866A CN 202210769575 A CN202210769575 A CN 202210769575A CN 114957866 A CN114957866 A CN 114957866A
- Authority
- CN
- China
- Prior art keywords
- parts
- accelerator
- ethylene propylene
- propylene diene
- rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920001875 Ebonite Polymers 0.000 title claims abstract description 15
- -1 Ethylene propylene diene Chemical class 0.000 title abstract description 12
- 229920001971 elastomer Polymers 0.000 claims abstract description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000002745 absorbent Effects 0.000 claims abstract description 4
- 239000002250 absorbent Substances 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- 239000011593 sulfur Substances 0.000 claims abstract description 4
- 229920002943 EPDM rubber Polymers 0.000 abstract description 16
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C08K3/02—Elements
- C08K3/06—Sulfur
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/43—Compounds containing sulfur bound to nitrogen
-
- 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
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
Landscapes
- Chemical & Material Sciences (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 discloses ethylene propylene diene hard rubber which comprises the following components in parts by weight: 50 parts of virgin rubber, 700 parts of moisture absorbent Ca0-80, 70 parts of accelerator ZDBC-80, 65 parts of accelerator MBT-80, 130 parts of accelerator DPTT-70, 35 parts of accelerator ETU-80, 115 parts of vulcanizing agent DTDM-80 and 135 parts of sulfur S-80. The ethylene propylene diene hard rubber provided by the invention has the advantage that the performances of the ethylene propylene diene hard rubber in the aspects of tensile strength, elongation at break, compression set, elongation at break change rate and the like are obviously improved compared with those of the common EPDM rubber through a special formula.
Description
Technical Field
The invention relates to the technical field of rubber sealing strips, in particular to ethylene propylene diene monomer rubber.
Background
EPDM (ethylene Propylene monomer), an ethylene Propylene Diene monomer, is a copolymer of ethylene, Propylene and a minor amount of a non-conjugated Diene. The composite material has excellent ozone resistance, heat resistance, weather resistance and other aging resistance, and can be widely used in the fields of automobile parts, waterproof materials for buildings, wire and cable sheaths, heat-resistant rubber tubes, adhesive tapes, automobile sealing parts and the like.
The properties of EPDM make it attractive in the area of passenger car weatherstrips. According to incomplete statistics, EPDM (ethylene-propylene-diene monomer) is used as a sealing strip of a passenger car to consume about 80 ten thousand tons every year all over the world, meanwhile, the requirement of enterprises on the material performance of EPDM is higher and higher, and the technical indexes of tensile strength, elongation at break, compression set and the like of common EPDM cannot meet the requirement of the enterprises.
Therefore, a more optimized EPDM rubber strip formula is sought, a product with higher performance is obtained, the quality of the passenger car sealing strip industry is promoted to be improved, and the technical problem which needs to be solved by EPDM rubber strip production enterprises is solved urgently.
Disclosure of Invention
In view of the above, the present invention provides an ethylene propylene diene monomer hard rubber to solve the technical problem of improving the tensile strength, elongation at break, compression set and other properties of EPDM.
The ethylene propylene diene hard rubber comprises the following components in parts by weight: 50 parts of virgin rubber, 700 parts of moisture absorbent Ca0-80, 70 parts of accelerator ZDBC-80, 65 parts of accelerator MBT-80, 130 parts of accelerator DPTT-70, 35 parts of accelerator ETU-80, 115 parts of vulcanizing agent DTDM-80 and 135 parts of sulfur S-80.
The invention has the beneficial effects that:
the ethylene propylene diene hard rubber provided by the invention has the advantage that the performances of the ethylene propylene diene hard rubber in the aspects of tensile strength, elongation at break, compression set, elongation at break change rate and the like are obviously improved compared with those of the common EPDM rubber through a special formula.
Detailed Description
The ethylene propylene diene hard rubber in the embodiment comprises the following components in parts by weight: 50 parts of virgin rubber, 700 parts of moisture absorbent Ca0-80, 70 parts of accelerator ZDBC-80, 65 parts of accelerator MBT-80, 130 parts of accelerator DPTT-70, 35 parts of accelerator ETU-80, 115 parts of vulcanizing agent DTDM-80 and 135 parts of sulfur S-80.
The raw materials are added into an internal mixer according to the proportion and mixed to obtain a mixed rubber material, then the mixed rubber material is heated and uniformly mixed through an open mill and then is extruded and molded through an extruder, and the extruded rubber strip is continuously conveyed to a microwave rubber vulcanization device for vulcanization treatment, so that the ethylene-propylene-diene hard rubber strip is obtained.
The physical properties of the common ethylene propylene diene hard rubber and the ethylene propylene diene hard rubber strips obtained in the embodiment are compared and detected, and the results are shown in the following table:
as can be seen from comparison of detection data, the performances of the ethylene propylene diene monomer hard rubber obtained in the embodiment in the aspects of tensile strength, elongation at break change rate, compression set rate and the like are obviously improved compared with those of common EPDM rubber.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (1)
1. The ethylene-propylene-diene hard rubber is characterized in that: comprises the following components in parts by weight: 50 parts of virgin rubber, 700 parts of moisture absorbent Ca0-80, 70 parts of accelerator ZDBC-80, 65 parts of accelerator MBT-80, 130 parts of accelerator DPTT-70, 35 parts of accelerator ETU-80, 115 parts of vulcanizing agent DTDM-80 and 135 parts of sulfur S-80.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210769575.4A CN114957866A (en) | 2022-06-30 | 2022-06-30 | Ethylene propylene diene hard rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210769575.4A CN114957866A (en) | 2022-06-30 | 2022-06-30 | Ethylene propylene diene hard rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114957866A true CN114957866A (en) | 2022-08-30 |
Family
ID=82966920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210769575.4A Pending CN114957866A (en) | 2022-06-30 | 2022-06-30 | Ethylene propylene diene hard rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114957866A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146083A (en) * | 2013-03-20 | 2013-06-12 | 柯宇旋 | Rubber formula of environment-friendly highly heat-resistant automobile radiator cooling liquid rubber pipe |
| CN103804802A (en) * | 2014-02-28 | 2014-05-21 | 长城汽车股份有限公司 | Automobile sealing strip and manufacturing method thereof |
| CN113045830A (en) * | 2021-03-05 | 2021-06-29 | 安徽中鼎密封件股份有限公司 | Halogen-free flame-retardant ethylene propylene diene monomer rubber material and preparation method thereof |
-
2022
- 2022-06-30 CN CN202210769575.4A patent/CN114957866A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146083A (en) * | 2013-03-20 | 2013-06-12 | 柯宇旋 | Rubber formula of environment-friendly highly heat-resistant automobile radiator cooling liquid rubber pipe |
| CN103804802A (en) * | 2014-02-28 | 2014-05-21 | 长城汽车股份有限公司 | Automobile sealing strip and manufacturing method thereof |
| CN113045830A (en) * | 2021-03-05 | 2021-06-29 | 安徽中鼎密封件股份有限公司 | Halogen-free flame-retardant ethylene propylene diene monomer rubber material and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220830 |