CN105237894A - Formula of ethylene propylene diene monomer rubber for rubber layer in rubber tube of air conditioner - Google Patents
Formula of ethylene propylene diene monomer rubber for rubber layer in rubber tube of air conditioner Download PDFInfo
- Publication number
- CN105237894A CN105237894A CN201510796717.6A CN201510796717A CN105237894A CN 105237894 A CN105237894 A CN 105237894A CN 201510796717 A CN201510796717 A CN 201510796717A CN 105237894 A CN105237894 A CN 105237894A
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- rubber
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- air conditioner
- ethylene propylene
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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
- 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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a formula of ethylene propylene diene monomer rubber for a rubber layer in a rubber tube of an air conditioner. The formula comprises the following components in parts by weight: 100 parts of ethylene propylene diene monomer raw rubber, 4-8 parts of zinc oxide, 1-3 parts of stearic acid, 0.5-3 parts of an anti-aging agent RD, 0.5-2 parts of an anti-aging agent MB, 50-130 parts of carbon black N774, 10-50 parts of paraffin oil, 2-5 parts of dicumyl peroxide, 1-4 parts of N,N'-m-phenylenedimaleimide and 0.3-1 part of sulfur. Compared with rubber for the rubber layer in the rubber tube of the air conditioner, prepared by virtue of the prior art, the ethylene propylene diene monomer rubber has the advantages that the obvious difference is formed, the high-low temperature resistance, the ozone resistance, the low compression permanent deformation and the adhesivity with an inner nylon layer are greatly improved, and the cost is low; as an organic adhesive does not need to be sprayed in the process, the environmental friendliness is achieved.
Description
Technical field
The present invention relates to air conditioner rubber pipe technical field, particularly a kind of formula of ethylene propylene terpolymer with for air conditioner rubber pipe mesogloea.
Background technology
Air conditioner rubber pipe mainly refers to the sebific duct of delivering liquid or gaseous refrigerant R134a in automotive air-conditioning system, and the sebific duct structure (from inside to outside) generally used both at home and abroad is at present interior nylon layer/mesogloea/fiber-reinforced layer/outer glue-line.The osmotic-pressure-tolerant of air conditioner rubber pipe depends on the adhesiveproperties of selecting of layers of material and mesogloea and interior nylon layer, outer glue-line and fiber-reinforced layer.
Air conditioner rubber pipe mesogloea need to have excellent refrigeration agent resistance, resistant of high or low temperature and with interior nylon layer firmly adhesiveproperties.In prior art, what be used for greatly mesogloea is chlorinated butyl rubber, however due to the resistance toheat of chlorinated butyl rubber bad, the temperature more than 120 DEG C just can produce hardening phenomenon, shortens the work-ing life of sebific duct largely.Therefore, a kind of new air conditioner rubber pipe mesogloea formula is developed imperative.
Terpolymer EP rubber has good resistant of high or low temperature, ozone resistance, good processing characteristics, and cost is far below chlorinated butyl rubber, but because terpolymer EP rubber is nonpolar, autohension and mutual viscosity poor, time bonding with enhancement layer, technique is substantially all the method adopting dipping, spraying or brush organic adhesion agent, contaminate environment also threatens that operating personnel's is healthy, how only to solve itself and the bonding problem of enhancement layer by the formula development of terpolymer EP rubber, become industry urgent need to solve the problem.What the present invention solved is the exploitation of formula of ethylene propylene terpolymer with, while making it meet air conditioner rubber pipe mesogloea performance requriements, solves its bonding problem with interior nylon layer.
Summary of the invention
The object of the present invention is to provide a kind of formula of ethylene propylene terpolymer with for air conditioner rubber pipe mesogloea, for the mesogloea of air conditioner rubber pipe, meet air conditioner rubber pipe resistant of high or low temperature, ozone resistance, low compression set, and mesogloea and interior nylon layer firmly adhesiveproperties, do not need in sebific duct production technique to spray organic adhesion agent, environmental protection simultaneously.
The object of the present invention is achieved like this: a kind of formula of ethylene propylene terpolymer with for air conditioner rubber pipe mesogloea, its component and massfraction as follows:
Ethylene Propylene Terpolymer rubber: 100 parts;
Zinc oxide: 4 ~ 8 parts;
Stearic acid: 1 ~ 3 part;
Anti-aging agent RD: 0.5 ~ 3 part;
Antioxidant MB: 0.5 ~ 2 part;
Carbon black N774:50 ~ 130 part;
Paraffin oil: 10 ~ 50 parts;
Dicumyl peroxide: 2 ~ 5 parts;
N, N '-penylene bismaleimides: 1 ~ 4 part;
Sulphur: 0.3 ~ 1 part.
Describe formula of ethylene propylene terpolymer with of the present invention in detail.
Select in the present invention ethylene content be 55% ~ 70% Ethylene Propylene Terpolymer rubber.
Zinc oxide and stearic acid are vulcanization aid, can improve vulcanization crosslinking degree, the coke burning performance of sizing material and processing safety.
Anti-aging agent RD is 2,2,4-trimethylammonium-1,2-dihyaroquinoline, and antioxidant MB is 2-mercaptobenzimidazole, two kinds of anti-aging agent use, produces synergistic effect, can improve the high thermal resistance of sizing material, ozone resistance and low compression set.
Carbon black 774, be strengthening agent, this carbon structure is high, and loading level is high, and heat-dissipating is low, can improve sizing material processing performance and low compression set.
Paraffin oil is softening agent, good with terpolymer EP rubber consistency, and low extractable can improve processibility and the lower temperature resistance of sizing material.
N, N '-penylene bismaleimides, be additional crosslinker, sizing material can be made to have excellent low compression set, and improve the adhesiveproperties of sizing material and interior nylon layer.
Dicumyl peroxide and sulphur are vulcanizing agent, combinationally use formation sulphur-superoxide blending vulcanization system, can not only improve the high thermal resistance of sizing material, low compression set, and can also improve the adhesiveproperties of sizing material and interior nylon layer.
The invention has the beneficial effects as follows: in this formula, select Ethylene Propylene Terpolymer rubber as the main raw material of mesogloea, adopt sulphur-superoxide blending vulcanization system, by utilizing the mutual synergy between each component, obtained mesogloea not only has good resistant of high or low temperature, ozone resistance, low compression set, and bonding with interior nylon layer firmly, form tight entirety between mesogloea and interior nylon layer, cannot be separated.The air conditioner rubber pipe mesogloea rubber that mesogloea cost of the present invention is obtained far below prior art, in addition, does not need in sebific duct production technique to spray organic adhesion agent, environmental protection.
Embodiment
Embodiments of the invention are as shown in table 1:
Table 1. embodiments of the invention
(blended unit: mass fraction)
| Component | Example 1 | Example 2 | Example 3 |
| Ethylene Propylene Terpolymer rubber | 100 | 100 | 100 |
| Zinc oxide | 4 | 6 | 8 |
| Stearic acid | 1 | 2 | 3 |
| Anti-aging agent RD | 0.5 | 1.5 | 3 |
| Antioxidant MB | 0.5 | 1 | 2 |
| Carbon black N774 | 50 | 90 | 130 |
| Paraffin oil | 10 | 30 | 50 |
| Dicumyl peroxide | 2 | 3.5 | 5 |
| N, N '-penylene bismaleimides | 1 | 2.5 | 4 |
| Sulphur | 0.3 | 0.65 | 1 |
Make film by starting material in Example formulations and carry out testing inspection, the performance of terpolymer EP rubber is as table 2:
The performance table of table 2. terpolymer EP rubber
Can be found out by above-described embodiment, formula of ethylene propylene terpolymer with of the present invention not only meets the performance requriements of air conditioner rubber pipe mesogloea, and solves the bonding problem of terpolymer EP rubber and interior nylon layer.Obtained mesogloea not only has good resistant of high or low temperature, ozone resistance, low compression set, and bondingly with interior nylon layer firmly forms tight entirety between mesogloea and interior nylon layer, cannot be separated.The air conditioner rubber pipe mesogloea rubber that mesogloea cost of the present invention is obtained far below prior art, in addition, does not need in sebific duct production technique to spray organic adhesion agent, environmental protection.
The mesogloea performance of air conditioner rubber pipe:
Heat-proof aging (120 DEG C × 96h) changes in hardness is 3 Shao Er A, tensile strength velocity of variation is 4.9%, tensile yield velocity of variation is-8.1%, compression set (120 DEG C × 96h) is 25.2%, temperature limit of brittleness is-53.3 DEG C, ozone resistance is good, and sizing material is bonding with interior nylon layer firmly.The air conditioner rubber pipe mesogloea rubber phase ratio obtained with prior art, resistant of high or low temperature, ozone resistance, low compression set, and greatly improve with interior nylon layer adhesiveproperties.
Claims (2)
1. for a formula of ethylene propylene terpolymer with for air conditioner rubber pipe mesogloea, it is characterized in that recipe ingredient and mass fraction as follows:
Ethylene Propylene Terpolymer rubber: 100 parts;
Zinc oxide: 4 ~ 8 parts;
Stearic acid: 1 ~ 3 part;
Anti-aging agent RD: 0.5 ~ 3 part;
Antioxidant MB: 0.5 ~ 2 part;
Carbon black N774:50 ~ 130 part;
Paraffin oil: 10 ~ 50 parts;
Dicumyl peroxide: 2 ~ 5 parts;
N, N '-penylene bismaleimides: 1 ~ 4 part;
Sulphur: 0.3 ~ 1 part.
2. for a purposes for the formula of ethylene propylene terpolymer with of air conditioner rubber pipe mesogloea, for the mesogloea of the formula of ethylene propylene terpolymer with of air conditioner rubber pipe mesogloea for automobile air conditioner rubber hose described in it is characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510796717.6A CN105237894A (en) | 2015-11-18 | 2015-11-18 | Formula of ethylene propylene diene monomer rubber for rubber layer in rubber tube of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510796717.6A CN105237894A (en) | 2015-11-18 | 2015-11-18 | Formula of ethylene propylene diene monomer rubber for rubber layer in rubber tube of air conditioner |
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| CN105237894A true CN105237894A (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510796717.6A Pending CN105237894A (en) | 2015-11-18 | 2015-11-18 | Formula of ethylene propylene diene monomer rubber for rubber layer in rubber tube of air conditioner |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106700279A (en) * | 2016-11-29 | 2017-05-24 | 芜湖集拓橡胶技术有限公司 | Low-temperature-resistant ethylene propylene diene monomer door and window sealing strip formula |
| CN107383492A (en) * | 2017-08-11 | 2017-11-24 | 广州市政鑫橡塑有限公司 | A kind of no blooming rubber composition and preparation method thereof |
| CN109054194A (en) * | 2018-06-29 | 2018-12-21 | 宁国中信零部件有限公司 | A kind of idle call ageing-resistant rubber formula and preparation method thereof |
| CN113789013A (en) * | 2021-09-16 | 2021-12-14 | 漯河市久隆液压科技有限公司 | Automobile air conditioner rubber tube for conveying R134a refrigerant |
| CN114891305A (en) * | 2022-06-24 | 2022-08-12 | 青岛三祥科技股份有限公司 | Rubber composition and automobile air conditioner hose |
Citations (4)
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|---|---|---|---|---|
| CN101875744A (en) * | 2009-12-03 | 2010-11-03 | 天津鹏翎胶管股份有限公司 | Formula of outer rubber layer of hyposmosis air conditioner rubber pipe |
| CN201688045U (en) * | 2010-06-01 | 2010-12-29 | 广东美的电器股份有限公司 | Household air-conditioner refrigerant hose |
| CN102585379A (en) * | 2011-01-13 | 2012-07-18 | 北京橡胶工业研究设计院 | Ethylene propylene diene rubber composition and preparation method |
| CN102829262A (en) * | 2012-09-06 | 2012-12-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Soft hose of automobile air conditioner and manufacturing method thereof |
-
2015
- 2015-11-18 CN CN201510796717.6A patent/CN105237894A/en active Pending
Patent Citations (4)
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| CN101875744A (en) * | 2009-12-03 | 2010-11-03 | 天津鹏翎胶管股份有限公司 | Formula of outer rubber layer of hyposmosis air conditioner rubber pipe |
| CN201688045U (en) * | 2010-06-01 | 2010-12-29 | 广东美的电器股份有限公司 | Household air-conditioner refrigerant hose |
| CN102585379A (en) * | 2011-01-13 | 2012-07-18 | 北京橡胶工业研究设计院 | Ethylene propylene diene rubber composition and preparation method |
| CN102829262A (en) * | 2012-09-06 | 2012-12-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Soft hose of automobile air conditioner and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106700279A (en) * | 2016-11-29 | 2017-05-24 | 芜湖集拓橡胶技术有限公司 | Low-temperature-resistant ethylene propylene diene monomer door and window sealing strip formula |
| CN107383492A (en) * | 2017-08-11 | 2017-11-24 | 广州市政鑫橡塑有限公司 | A kind of no blooming rubber composition and preparation method thereof |
| CN109054194A (en) * | 2018-06-29 | 2018-12-21 | 宁国中信零部件有限公司 | A kind of idle call ageing-resistant rubber formula and preparation method thereof |
| CN113789013A (en) * | 2021-09-16 | 2021-12-14 | 漯河市久隆液压科技有限公司 | Automobile air conditioner rubber tube for conveying R134a refrigerant |
| CN114891305A (en) * | 2022-06-24 | 2022-08-12 | 青岛三祥科技股份有限公司 | Rubber composition and automobile air conditioner hose |
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Address after: 211500 No. 581, Ning six road, Liuhe Economic Development Zone, Jiangsu, Nanjing, China Applicant after: NANJING ORIENTLEADER TECHNOLOGY CO., LTD. Address before: 210028 Maigaoqiao, Jiangsu, Qixia District, No. 7 Venture Park, Applicant before: NANJING 7425 RUBBER & PLASTIC CO., LTD. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160113 |
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| RJ01 | Rejection of invention patent application after publication |