CN103740087A - Cold-resisting epichlorohydrin rubber composition - Google Patents
Cold-resisting epichlorohydrin rubber composition Download PDFInfo
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- CN103740087A CN103740087A CN201310753223.0A CN201310753223A CN103740087A CN 103740087 A CN103740087 A CN 103740087A CN 201310753223 A CN201310753223 A CN 201310753223A CN 103740087 A CN103740087 A CN 103740087A
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Abstract
The invention relates to a cold-resisting epichlorohydrin rubber composition. The cold-resisting epichlorohydrin rubber composition comprises the following ingredients in parts by weight: 40 to 60 parts of epichlorohydrin rubber, 10 to 30 parts of butadiene rubber, 1 to 5 parts of promoter NA-22; 3 to 5 parts of promoter DM, 5 to 9 parts of magnesium oxide, 1 to 2 parts of anti-aging agent NBC, 0.5 to 1 part of anti-aging agent MB, 10 to 15 parts of calcium carbonate, 5 to 10 parts of dimethoxyethyl phthalate, 5 to 10 parts of adipic acid di-butoxide ethyl ester, 30 to 50 parts of rapid-compressed carbon black N550, 20 to 40 parts of rapid-compressed furnace blank and 1.5 to 2 parts of gamma-glycidol trimethoxypropyl-silane. The epichlorohydrin rubber and the butadiene rubber are collectively utilized, the low-temperature cold resistance of the epichlorohydrin rubbe is further improved under the effect of the additives such as dimethoxyethyl phthalate and adipic acid di-butoxide ethyl ester, the brittleness temperature reaches minus 30 DEG C, no fracture is produced, and the oil resistance is still good. The cold-resisting epichlorohydrin rubber composition can have a better effect in the fields such as automobiles, petrochemical industry and the like.
Description
Technical field
The present invention relates to rubber technology field, particularly winter hardiness chlorohydrin rubber composition.
Background technology
Along with the expansion of range of application and the raising of application severity, people have proposed more and more higher requirement to the performance of elastomeric material, and chlorohydrin rubber is as a kind of specialty elastomer, because its over-all properties is better, therefore purposes is wider.Can be used as the accessory of automobile, aircraft and various machineries, as packing ring, sealing-ring, O type circle, barrier film etc.; This type of sealing article is the mechanical key part of whole braking, and the quality of its performance directly affects traffic safety.In the use procedure of these rubber items, due to the needs of Working environment, require rubber item except having good oil resistance, also need good low-temperature performance.Temperature limit of brittleness is the most frequently used method for expressing of rubber low temperature resistance performance, refers to that the top temperature of breaking appears in sample when low temperature is subject to certain surging force, occurs that the top temperature of breaking is lower, and low temperature winter hardiness is better.Existing chlorohydrin rubber temperature limit of brittleness starts to occur fracture while reaching-27 ℃.
Chlorohydrin rubber refers to the polyether-type rubber that contains chlorine on side group.It is the macromolecular elastomer being formed by the cyclic ether ring-opening polymerization that contains epoxy group(ing); Chlorohydrin rubber main chain contains ehter bond, and side chain is containing chloromethyl.This distinctive chemical structure, has determined that it has a lot of special performances.The ehter bond of main chain, makes it to have good heat-resistant aging and ozone resistance; Polar side chain chloromethyl, makes it to have excellent oil-proofness and resistance to gas permeability.But on the other hand, these two kinds of structural units but play a different role to winter hardiness, i.e. the existence of ehter bond, gives polymkeric substance with cryogenic subduing flexibility, and the force of cohesion of chloromethyl plays a part infringement low-temperature performance.The low-temperature performance of the homopolymer therefore forming with both equivalent is unsatisfactory.
Summary of the invention
Object of the present invention is mainly a kind of winter hardiness chlorohydrin rubber composition of exploitation, further improve its winter hardiness, when guaranteeing to add some auxiliary agent to improve winter hardiness, other performance does not have obviously to change or change to occur in allowed band simultaneously, guarantees cold-resistant effect and other performance requriements of sizing material.
By the data of searching and lot of experiments practice, determine, chlorohydrin rubber and cis-1,4-polybutadiene rubber are also used the low temperature cold tolerance that can improve sizing material.Reinforcement system adopts the winter hardiness fast carbon black that extrudes preferably.Softening agent is to affect one of most important Synergist S-421 95 of sizing material cold tolerance, two kinds of different softening agent are also with producing synergy, the also use of Dimethoxyethyl phthalate, dibutoxyethyl adipate can improve the winter hardiness of sizing material greatly, also can improve mobility and the processibility of sizing material simultaneously.
Chlorohydrin rubber composition component of the present invention and ratio of quality and the number of copies are:
By adopting chlorohydrin rubber and cis-1,4-polybutadiene rubber use and under the acting in conjunction of the auxiliary agents such as Dimethoxyethyl phthalate, dibutoxyethyl adipate, the low temperature winter hardiness of chlorohydrin rubber has had further raising, and it is still good that temperature limit of brittleness can reach-30 ℃ of nothing fracture oil-proofnesss.
The raising of chlorohydrin rubber winter hardiness has also improved the use value of rubber simultaneously, for chlorohydrin rubber material and goods thereof in automotive field, the field of petrochemical industry important in inhibiting that can better play a role, safety control and the work-ing life of having improved goods.
Embodiment
Winter hardiness chlorohydrin rubber composition embodiment:
In mass fraction
By starting material and consumption in listed formula, carry out common mixed refining process:
1, rubber, starting material weigh
2, one section of banburying-mono-section opens refining-lower sheet
3, two sections of banburying-bis-section open refining-lower sheet
4, sulfide film
5, by standard, cut style
6. test detection
To use cis-1,4-polybutadiene rubber to improve the test-results of chlorohydrin rubber low temperature winter hardiness below:
By the summary to above-mentioned test, when traditional chlorohydrin rubber formula can guarantee certain low temperature cold tolerance, its oil resistance is very poor, under the same terms, compare with selecting the chlorohydrin rubber formula after improvement, changes in hardness, tensile strength at yield change, tensile yield changes greatly, the temperature limit of brittleness of selecting cis-1,4-polybutadiene rubber to improve chlorohydrin rubber is further improved, and rubber each performance variation under oil resistant condition is all lower than traditional chlorohydrin rubber formula, effectively balance oil-proofness, winter hardiness.Met the requirement of automotive rubber products oil resistant, cold tolerance.
The chlorohydrin rubber composition that the present invention proposes, by have been described in detail above, person skilled obviously can be within not departing from content of the present invention, spirit and scope to formula as herein described and preparation method changes or suitably change realize the technology of the present invention with combination.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the artly, they are deemed to be included in spirit of the present invention, scope and content.
Claims (1)
1. a winter hardiness chlorohydrin rubber composition, is characterized in that composition component and ratio of quality and the number of copies are:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310753223.0A CN103740087A (en) | 2013-12-28 | 2013-12-28 | Cold-resisting epichlorohydrin rubber composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310753223.0A CN103740087A (en) | 2013-12-28 | 2013-12-28 | Cold-resisting epichlorohydrin rubber composition |
Publications (1)
| Publication Number | Publication Date |
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| CN103740087A true CN103740087A (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310753223.0A Pending CN103740087A (en) | 2013-12-28 | 2013-12-28 | Cold-resisting epichlorohydrin rubber composition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906862A (en) * | 2016-06-06 | 2016-08-31 | 苏州锦腾电子科技有限公司 | Low temperature resistance and corrosion resistance plastic material and preparation method thereof |
| CN107022120A (en) * | 2017-06-21 | 2017-08-08 | 合肥帧讯低温科技有限公司 | Low-temperature heat-insulating material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245180A (en) * | 2008-03-17 | 2008-08-20 | 沈阳化工学院 | Leadless non-nickel epichlorohydrin rubber sizing material |
| CN102618012A (en) * | 2012-04-05 | 2012-08-01 | 天津鹏翎胶管股份有限公司 | Environment-friendly epichlorohydrin rubber composition bonded with fluorine rubber and application thereof |
| CN102719079A (en) * | 2012-06-27 | 2012-10-10 | 天津滨海新区大港天力胶管有限公司 | Environment-friendly flame-retardant type epichlorohydrin-rubber pipe formula |
-
2013
- 2013-12-28 CN CN201310753223.0A patent/CN103740087A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245180A (en) * | 2008-03-17 | 2008-08-20 | 沈阳化工学院 | Leadless non-nickel epichlorohydrin rubber sizing material |
| CN102618012A (en) * | 2012-04-05 | 2012-08-01 | 天津鹏翎胶管股份有限公司 | Environment-friendly epichlorohydrin rubber composition bonded with fluorine rubber and application thereof |
| CN102719079A (en) * | 2012-06-27 | 2012-10-10 | 天津滨海新区大港天力胶管有限公司 | Environment-friendly flame-retardant type epichlorohydrin-rubber pipe formula |
Non-Patent Citations (1)
| Title |
|---|
| 铁岭地区橡胶厂橡胶研究所: ""氯醇橡胶的特性与应用"", 《辽宁化工技术通讯》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906862A (en) * | 2016-06-06 | 2016-08-31 | 苏州锦腾电子科技有限公司 | Low temperature resistance and corrosion resistance plastic material and preparation method thereof |
| CN107022120A (en) * | 2017-06-21 | 2017-08-08 | 合肥帧讯低温科技有限公司 | Low-temperature heat-insulating material |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140423 |