CN112538220A - Sealing strip sizing material with excellent water resistance - Google Patents
Sealing strip sizing material with excellent water resistance Download PDFInfo
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- CN112538220A CN112538220A CN202011386720.8A CN202011386720A CN112538220A CN 112538220 A CN112538220 A CN 112538220A CN 202011386720 A CN202011386720 A CN 202011386720A CN 112538220 A CN112538220 A CN 112538220A
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- parts
- accelerator
- water resistance
- tab
- accelerant
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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
-
- 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
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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
-
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- 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)
Abstract
The invention discloses a sealing strip sizing material with excellent water resistance, which comprises the following components: the components are as follows: 100 parts of EPDM, 10-130 parts of BC 1029110, 30-50 parts of calcium carbonate OMYACARB 5T, 40-60 parts of TAB, 20-25 parts of paraffin oil, 5-7 parts of active zinc oxide, 8-12 parts of CaO, 1 part of stearic acid, 2-4 parts of an active agent, 0.6-1.0 part of an accelerator ETU, 0.5-0.7 part of an accelerator TT, 0.3-0.6 part of an accelerator ZDMC, 1.2-1.6 parts of an accelerator CBS and 1.2-1.6 parts of an accelerator ZDBC. The rubber material has good basic physical properties, excellent high and low temperature resistance, good water resistance and excellent ozone resistance, and is suitable for being applied to the rubber field with special requirements on water resistance, such as sealing strips for vehicles, water pipes and the like.
Description
Technical Field
The invention belongs to the field of rubber, and particularly relates to a sealing strip sizing material with excellent water resistance.
Background
Many rubber products need to have very good water resistance due to the requirements of the use environment, and are required to have no or only small volume change and substance precipitation in the process of contacting with water, and have good mechanical property retention rate in the process of contacting with water for a long time, otherwise, the sealing property is influenced or the water body pollution is caused. In addition, because a large amount of materials are applied to outdoor environment and can be changed in four seasons, the high and low temperature resistance and ozone resistance of the materials are required, and in view of the fact that the requirements of the domestic automobile field and the building field on water-resistant materials are more and more strict and the application range is wider, the development of a water-resistant rubber material with good mechanical properties, high and low temperature resistance, ozone resistance and other excellent comprehensive properties is urgent.
Disclosure of Invention
The invention aims to solve the problems, provides a sealing strip sizing material with good water resistance, has good basic physical properties and ozone resistance, has good water resistance, and can be applied to the rubber field with special requirements on water resistance, such as sealing strips for vehicles, water pipes and the like.
In order to achieve the purpose, the invention provides the following technical scheme: a sealing strip sizing material with excellent water resistance comprises the following components in parts by weight: 100 parts of EPDM, 10-130 parts of carbon black BC 1029110-130 parts, 30-50 parts of calcium carbonate OMYACARB 5T, 40-60 parts of argil TAB, 20-25 parts of paraffin oil, 5-7 parts of active zinc oxide, 8-12 parts of CaO, 1 part of stearic acid, 2-4 parts of an active agent, 0.6-1.0 part of an accelerator ETU, 0.5-0.7 part of an accelerator TT, 0.3-0.6 part of an accelerator ZDMC, 1.2-1.6 parts of an accelerator CBS and 1.2-1.6 parts of an accelerator ZDBC.
Preferably, the rubber material comprises the following components in parts by weight: 100 parts of EPDM (ethylene-propylene-diene monomer), 1029110 parts of BC (carbonic acid ester), 30 parts of OMYACARB 5T (calcium carbonate), 40 parts of TAB (TAB), 20 parts of paraffin oil, 5 parts of active zinc oxide, 8 parts of CaO, 1 part of stearic acid, 2 parts of an active agent, 0.6 part of an accelerator ETU (ethylene-vinyl ether) and TT (thiofide), 0.3 part of an accelerator ZDMC (zinc chloride), 1.2 parts of an accelerator CBS and 1.2 parts of an accelerator ZDBC.
Preferably, the rubber compound comprises the following components: 100 parts of EPDM (ethylene-propylene-diene monomer), 1029130 parts of BC (carbonic acid ester), 50 parts of OMYACARB 5T (carbonic acid ester), 60 parts of TAB (TAB), 25 parts of paraffin oil, 7 parts of active zinc oxide, 12 parts of CaO, 1 part of stearic acid, 4 parts of an active agent, 1.0 part of an accelerant ETU (ethylene-vinyl ether) 1.7 parts of an accelerant TT, 0.6 part of an accelerant ZDMC (carbonic acid ester), 1.6 parts of an accelerant CBS (carbonic acid ester), and 1.6 parts of an accelerant ZDBC.
Preferably, the rubber compound comprises the following components: 100 parts of EPDM (ethylene-propylene-diene monomer), 1029120 parts of BC (carbonic acid ester), 40 parts of OMYACARB 5T (calcium carbonate), 50 parts of TAB (TAB), 22 parts of paraffin oil, 6 parts of active zinc oxide, 10 parts of CaO, 1 part of stearic acid, 3 parts of an active agent, 0.8 part of an accelerator ETU (ethylene-vinyl ether) and TT (thiofide), 0.5 part of an accelerator ZDMC (zinc chloride), 1.4 parts of an accelerator CBS and 1.4 parts of an accelerator ZDBC.
Preferably, the calcium carbonate grade is OMYACARB 5T.
The preparation method of the sealing strip sizing material with excellent water resistance comprises the following steps of 1) batching, and preparing sizing material composition raw materials according to the formula amount; 2) feeding-master batch mixing; adding the rubber compositions except the accelerant into an internal mixer in sequence according to parts by weight for mixing; 3) standing for vulcanization; 4) adding accelerator for mixing, adding accelerator for vulcanization; 5) cooling, filtering at low temperature, and collecting. The invention adopts a two-stage vulcanization mode in the vulcanization process, thereby greatly shortening the production period.
The invention uses the ethylene propylene diene monomer as a main body and is matched with the BC carbon black, so that the rubber material has good basic physical properties, and in addition, the reinforcing filling system ensures that the rubber material has proper hardness and compression deformation performance. The matching of calcium carbonate and paraffin oil makes the rubber material have better water resistance.
The above technical scheme enables the performance achieved by the invention to be as follows:
hardness 85 + -5 (Shore A)
The breaking strength is more than or equal to 10MPa
Elongation at break of 200-500%
Thermal aging at 70 deg.C for 70h
Hardness change: 0 to 5
Rate of change of tensile strength at break: -15 to 15 percent
Elongation at break change rate: -25% to 0
Water resistance of 80 ℃ multiplied by 120h
Hardness change: 0 to 5
Rate of change of tensile strength at break: -15 to 15 percent
Elongation at break change rate: -25% to 0
Compression set property
23℃×72h≤40％
100℃×24h≤50％
Ozone resistance performance 40 ℃ X72 h X20% stretch X20 ppm X60% humidity
Without cracks
Brittle temperature: not more than-40 deg.C
Fouling 100 ℃ X24 h: no pollution.
The performance characteristics show that the rubber material has good basic physical properties, excellent high and low temperature resistance, good water resistance and excellent ozone resistance, and is suitable for being applied to the rubber field with special requirements on water resistance, such as sealing strips for vehicles, water pipes and the like.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples 1 to 4
The preparation method of the sealing strip sizing material with excellent water resistance comprises the following steps of 1) batching, preparing sizing material composition raw materials according to the formula amount; 2) feeding-master batch mixing; adding the rubber compositions except the accelerant into an internal mixer in sequence according to parts by weight for mixing; 3) standing for vulcanization; 4) adding accelerator for mixing, adding accelerator for vulcanization; 5) cooling, filtering at low temperature, and collecting.
The names and proportions of the raw materials in the rubber compound of the invention are shown in Table 1.
TABLE 1
TABLE 2 Properties of the compositions prepared in examples 1 to 4
As can be seen from Table 2, the breaking strength of the rubber material is more than or equal to 10MPa, the breaking elongation is 200-500%, and the basic physical and mechanical properties are excellent; meanwhile, the hardness change of the thermal aging performance (70 ℃ multiplied by 70H) is within 0-5 Shore A, the change rate of the tensile strength at break is within +/-15%, the change rate of the elongation at break is between-25% and 0, and the high temperature resistance is good; the hardness change of the water resistance (80 ℃ multiplied by 120H) is within 0-5 Shore A, the change rate of the tensile strength at break is within +/-15 percent, and the change rate of the elongation at break is between-25 percent and 0 percent; the compression set property is excellent, the ozone resistance is excellent, the brittleness temperature is less than or equal to minus 40 ℃, the environment is protected, the pollution is avoided, and the comprehensive performance is suitable for being applied to the rubber field with special requirements on water resistance, such as sealing strips for vehicles, water pipes and the like.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The sealing strip rubber material with excellent water resistance is characterized by comprising the following components in parts by weight: 100 parts of EPDM, 10-130 parts of carbon black BC 1029110-130 parts, 30-50 parts of calcium carbonate OMYACARB 5T, 40-60 parts of argil TAB, 20-25 parts of paraffin oil, 5-7 parts of active zinc oxide, 8-12 parts of CaO, 1 part of stearic acid, 2-4 parts of an active agent, 0.6-1.0 part of an accelerator ETU, 0.5-0.7 part of an accelerator TT, 0.3-0.6 part of an accelerator ZDMC, 1.2-1.6 parts of an accelerator CBS and 1.2-1.6 parts of an accelerator ZDBC.
2. The sealing strip rubber material with excellent water resistance of claim 1, which is characterized by comprising the following components in parts by weight: 100 parts of EPDM (ethylene-propylene-diene monomer), 1029110 parts of BC (carbonic acid ester), 30 parts of OMYACARB 5T (calcium carbonate), 40 parts of TAB (TAB), 20 parts of paraffin oil, 5 parts of active zinc oxide, 8 parts of CaO, 1 part of stearic acid, 2 parts of an active agent, 0.6 part of an accelerator ETU (ethylene-vinyl ether) and TT (thiofide), 0.3 part of an accelerator ZDMC (zinc chloride), 1.2 parts of an accelerator CBS and 1.2 parts of an accelerator ZDBC.
3. The weatherstrip compound excellent in water resistance according to claim 1, which comprises the following components: 100 parts of EPDM (ethylene-propylene-diene monomer), 1029130 parts of BC (carbonic acid ester), 50 parts of OMYACARB 5T (carbonic acid ester), 60 parts of TAB (TAB), 25 parts of paraffin oil, 7 parts of active zinc oxide, 12 parts of CaO, 1 part of stearic acid, 4 parts of an active agent, 1.0 part of an accelerant ETU (ethylene-vinyl ether) 1.7 parts of an accelerant TT, 0.6 part of an accelerant ZDMC (carbonic acid ester), 1.6 parts of an accelerant CBS (carbonic acid ester), and 1.6 parts of an accelerant ZDBC.
4. The weatherstrip compound excellent in water resistance according to claim 1, which comprises the following components: 100 parts of EPDM (ethylene-propylene-diene monomer), 1029120 parts of BC (carbonic acid ester), 40 parts of OMYACARB 5T (calcium carbonate), 50 parts of TAB (TAB), 22 parts of paraffin oil, 6 parts of active zinc oxide, 10 parts of CaO, 1 part of stearic acid, 3 parts of an active agent, 0.8 part of an accelerator ETU (ethylene-vinyl ether) and TT (thiofide), 0.5 part of an accelerator ZDMC (zinc chloride), 1.4 parts of an accelerator CBS and 1.4 parts of an accelerator ZDBC.
5. The weather strip compound with excellent water resistance according to any one of claims 1 to 4, wherein the calcium carbonate grade is OMYACARB 5T.
6. The weatherstrip compound excellent in water resistance according to claim 1, which is produced by the method comprising the steps of 1) compounding raw materials of a compound composition in the amount specified; 2) feeding-master batch mixing; adding the rubber compositions except the accelerant into an internal mixer in sequence according to parts by weight for mixing; 3) standing for vulcanization; 4) adding an accelerator for vulcanization, and adding an accelerator for vulcanization; 5) cooling, filtering at low temperature, and collecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011386720.8A CN112538220A (en) | 2020-12-01 | 2020-12-01 | Sealing strip sizing material with excellent water resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011386720.8A CN112538220A (en) | 2020-12-01 | 2020-12-01 | Sealing strip sizing material with excellent water resistance |
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| Publication Number | Publication Date |
|---|---|
| CN112538220A true CN112538220A (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011386720.8A Pending CN112538220A (en) | 2020-12-01 | 2020-12-01 | Sealing strip sizing material with excellent water resistance |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151715A (en) * | 2014-07-22 | 2014-11-19 | 宁国中辰密封件有限公司 | Rubber sealing strip for automobile |
| CN106566094A (en) * | 2016-11-17 | 2017-04-19 | 华晨汽车集团控股有限公司 | Rubber composition for automobile skylight drain pipe sheath |
| CN107746510A (en) * | 2017-10-13 | 2018-03-02 | 瀚德（中国）汽车密封系统有限公司 | A kind of closely knit glue and preparation method thereof, the sealing strip for including it |
| 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 |
-
2020
- 2020-12-01 CN CN202011386720.8A patent/CN112538220A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151715A (en) * | 2014-07-22 | 2014-11-19 | 宁国中辰密封件有限公司 | Rubber sealing strip for automobile |
| CN106566094A (en) * | 2016-11-17 | 2017-04-19 | 华晨汽车集团控股有限公司 | Rubber composition for automobile skylight drain pipe sheath |
| CN107746510A (en) * | 2017-10-13 | 2018-03-02 | 瀚德（中国）汽车密封系统有限公司 | A kind of closely knit glue and preparation method thereof, the sealing strip for including it |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 刘大虎等: "三元乙丙橡胶滑动套管材料及粘接材料的研究", 《绝缘材料》 * |
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Application publication date: 20210323 |
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