CN102276931A - Strong-wear-resistant corrosion-resistant rubber composition for valve - Google Patents
Strong-wear-resistant corrosion-resistant rubber composition for valve Download PDFInfo
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- CN102276931A CN102276931A CN2011101818216A CN201110181821A CN102276931A CN 102276931 A CN102276931 A CN 102276931A CN 2011101818216 A CN2011101818216 A CN 2011101818216A CN 201110181821 A CN201110181821 A CN 201110181821A CN 102276931 A CN102276931 A CN 102276931A
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Abstract
The invention provides a strong-wear-resistant corrosion-resistant rubber composition for a valve, and the rubber composition is prepared from the following materials in parts by weight: 52-55 parts of 60/40 ethylene-propylene-diene monomer, 3-5 parts of active zinc oxide, 0.5-0.7 part of stearic acid used as an organic activating agent, 40 parts of N220 carbon black, 10 parts of N330 carbon black, 20 parts of dioctyl ester, 0.8-1 part of sulfur, 0.8-1 part of dicumyl peroxide, 3-3.5 parts of accelerant, 3-3.5 parts of flowing agent, 5-6 parts of zinc oxide, 3.5-4 parts of anti-aging agent, 4-5 parts of anti-cracking agent, 8-10 parts of defoamer and 2-4 parts of 2% water-emulsified organic silicon used as a release agent. The rubber composition provided by the invention has the characteristics of more reasonable formula and good wear resistance, and is more safe and reliable when used for high-corrosion valves.
Description
Technical field
The present invention relates to a kind of rubber combination, especially relate to a kind of valve rubber combination of strong wear resistant corrosion resistant.
Background technology
Common valve is under deep-etching, poisonous and hazardous processing condition, and often poor sealing performance easily leaks, and housing is easily bored a hole, and work-ing life is short, can not satisfy the particular requirement of permanently effective conveying poisonous medium.In order to satisfy the demand of permanently effective conveying poisonous medium, some entity and individual have developed and have been fit to the extraordinary valve that high corrosive medium is carried, and for guaranteeing safe effect, the valve periphery often is equipped with the rubber spacer.Often be furnished with different material prescriptions according to different service requirementss, a part of unit or individual also with regard to this type of rubber combination application patent of invention.
Once submitted the application for a patent for invention (number of patent application is 200410020251.2) that is called " a kind of rubber that is used for valve bushing and preparation method thereof " on August 9th, 2004 as Tianjin Kaifa Valve Co., Ltd., its component is as follows: 60/40 terpolymer EP rubber, active zinc flower, organic active agent stearic acid 0, quinoline polymkeric substance, carbon black HAF, oil base furnace black SRF, silicon-nitrogen compound, dimethyl phthalate, dispersion agent T-78, wetting agent 935P, thiuram, superoxide DCP, sulphur.After mixing, adopt rubber injection machine at material feeding tube (40-50) ℃, annotating plug pressure is that (2.5-3.0) kg/cm2 injects mould with the sizing material after mixing, places the valve part that needs lining rubber in this mould, and sizing material is injected directly into needs the valve part of lining rubber surface, after vulcanizing, the valve part surface gets final product lining rubber, can be at fluming water steam, high-temperature water, use in the pipeline of acid-alkali medium, the life-span can reach more than 1 year.Similarly patent also has a lot, but this type of patent has a common shortcoming, mainly is that elasticity is relatively poor, and is that the product reliability is good inadequately, is difficult to satisfy the high reliability request of high corrosion valve to the rubber quality.
Summary of the invention
Problem to be solved by this invention provides a kind of super wear-resisting super corrosion resistant door rubber combination.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of valve rubber combination of strong wear resistant corrosion resistant, material by following weight percent is made: 60/40 terpolymer EP rubber, 52～55 weight parts, active zinc flower 3～5 weight parts, organic active agent stearic acid 0.5-～0.7 weight part, N220 carbon black 40 weight parts, N330 carbon black 10 weight parts, dibutyl ester 20 weight parts, sulphur 0.8～1 weight part, dicumyl peroxide 0.8～1 weight part, promotor 3～3.5 weight parts, flowing agent 3～3.5 weight parts, zinc oxide 5～6 weight parts, anti-aging agent 3.5～4 weight parts, be full of cracks prevents agent 4～5 weight parts, defoamer 8～10 weight parts, 2% aqueous emulsion organosilicone mold releasing agent, 2～4 weight parts.
As a further improvement on the present invention, each component is preferably: 60/40 terpolymer EP rubber, 54 weight parts, active zinc flower 4 weight parts, organic active agent stearic acid 0.6 weight part, N220 carbon black 40 weight parts, N330 carbon black 10 weight parts, dibutyl ester 20 weight parts, sulphur 0.9 weight part, dicumyl peroxide 0.9 weight part, promotor 3.5 weight parts, flowing agent 3 weight parts, zinc oxide 6 weight parts, anti-aging agent 3.5 weight parts, be full of cracks prevents agent 5 weight parts, defoamer 10 weight parts, 2% aqueous emulsion organosilicone mold releasing agent, 2～4 weight parts.
Adopt above technical scheme, compare with existing common rubber combination, remarkable advantage of the present invention is:
1, prescription is more reasonable.Adjustment by proportioning, system has adjusted the consumption of dicumyl peroxide, having broken through must be by a little sulphur and a large amount of mutually crosslinked technical limitation of superoxide in traditional rubber process prescription, and the collaborative crosslinked finished product ozone resistance that makes this component make of the sulphur of basic identical deal and superoxide obviously strengthens; Because carbon black can not only improve the intensity of rubber item, and give rubber item with good abrasion performance, tear-resistant, heat-resisting, oil resistant, prolong the work-ing life of goods,, change whole N330 carbon blacks into a certain proportion of N220 carbon black and N330 carbon black through test of many times; Because be full of cracks prevents agent and has the composition of the carbon number distribution of broad and very rational straight-chain paraffin and isoparaffin, in very wide temperature range, can both play protective effect to the ozone-induced cracking of rubber item, rationally used the be full of cracks of certain part by weight to prevent that agent from can form the physical protection film at product surface, prevented that effectively be full of cracks from producing; In this component, add other auxiliary agents such as flowing agent of appropriate amount, under the prerequisite of the over-all properties that does not influence component, also help to improve complete processing.Add appropriate amount of defoamer, can avoid that rubber item bubbles when high temperature vulcanized, make the appearance impression of finished product of this rubber combination better; Add concentration and be 2% aqueous emulsion organosilicone mold releasing agent and help the stripping result of rubber finished product, can reduce the surface damage of finished product, increase the surperficial impression of finished product.
2, over-all properties is obviously improved.By synthesis measuring to embodiment, the present invention is by reform and adjustment to relevant prescription, than the General Purpose Rubber composition of similar prescription performances such as abrasion performance, tear-resistant, heat-resisting, sealing all promote to some extent, overall performance reduces by 30～40% before adjusting prescription.
Embodiment
Further specify the present invention below by embodiment.
Embodiment 1: the valve rubber combination of strong wear resistant corrosion resistant, material by following weight percent is made: 60/40 terpolymer EP rubber 52KG, active zinc flower 3KG, organic active agent stearic acid 0.5KG, N220 carbon black 40KG, N330 carbon black 10KG, dibutyl ester 20KG, sulphur 0.8KG, dicumyl peroxide 0.8KG, promotor 3KG, flowing agent 3KG, zinc oxide 5KG, anti-aging agent 3.5KG, be full of cracks prevents agent 4KG, defoamer 8KG, 2% aqueous emulsion organosilicone mold releasing agent 2KG.
Embodiment 2: the valve rubber combination of strong wear resistant corrosion resistant, material by following weight percent is made: 60/40 terpolymer EP rubber 55KG, active zinc flower 5KG, organic active agent stearic acid 0.7KG, N220 carbon black 40KG, N330 carbon black 10KG, dibutyl ester 20KG, sulphur 1KG, dicumyl peroxide 1KG, promotor 3.5KG, flowing agent 3.5KG, zinc oxide 6KG, anti-aging agent 4KG, be full of cracks prevents agent 5KG, defoamer 10KG, 2% aqueous emulsion organosilicone mold releasing agent 4KG.
Embodiment 3: the valve rubber combination of strong wear resistant corrosion resistant, material by following weight percent is made: 60/40 terpolymer EP rubber 54KG, active zinc flower 4KG, organic active agent stearic acid 0.6KG, N220 carbon black 40KG, N330 carbon black 10KG, dibutyl ester 20KG, sulphur 0.9KG, dicumyl peroxide 0.9KG, promotor 3.5KG, flowing agent 3KG, zinc oxide 6KG, anti-aging agent 3.5KG, be full of cracks prevents agent 5KG, defoamer 10KG, 2% aqueous emulsion organosilicone mold releasing agent 4KG.
Claims (2)
1. the valve rubber combination of a strong wear resistant corrosion resistant, its special sheet is to be made by the material of following weight percent: 60/40 terpolymer EP rubber, 52～55 weight parts, active zinc flower 3～5 weight parts, organic active agent stearic acid 0.5-～0.7 weight part, N220 carbon black 40 weight parts, N330 carbon black 10 weight parts, dibutyl ester 20 weight parts, sulphur 0.8～1 weight part, dicumyl peroxide 0.8～1 weight part, promotor 3～3.5 weight parts, flowing agent 3～3.5 weight parts, zinc oxide 5～6 weight parts, anti-aging agent 3.5～4 weight parts, be full of cracks prevents agent 4～5 weight parts, defoamer 8～10 weight parts, 2% aqueous emulsion organosilicone mold releasing agent, 2～4 weight parts.
2. the valve rubber combination of strong wear resistant corrosion resistant according to claim 1, its special sheet is to be made by the material of following weight percent: 60/40 terpolymer EP rubber, 52～55 weight parts, active zinc flower 3～5 weight parts, organic active agent stearic acid 0.5-～0.7 weight part, N220 carbon black 40 weight parts, N330 carbon black 10 weight parts, dibutyl ester 20 weight parts, sulphur 0.8～1 weight part, dicumyl peroxide 0.8～1 weight part, promotor 3～3.5 weight parts, flowing agent 3～3.5 weight parts, zinc oxide 5～6 weight parts, anti-aging agent 3.5～4 weight parts, be full of cracks prevents agent 4～5 weight parts, defoamer 8～10 weight parts, 2% aqueous emulsion organosilicone mold releasing agent, 2～4 weight parts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101818216A CN102276931A (en) | 2011-06-30 | 2011-06-30 | Strong-wear-resistant corrosion-resistant rubber composition for valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101818216A CN102276931A (en) | 2011-06-30 | 2011-06-30 | Strong-wear-resistant corrosion-resistant rubber composition for valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103724838A (en) * | 2013-12-20 | 2014-04-16 | 柳州日高橡胶制品有限责任公司 | Formula of ethylene-propylene-diene monomer |
| CN105385046A (en) * | 2015-11-25 | 2016-03-09 | 四川佳世特橡胶有限公司 | Underground comprehensive pipe rack sealing product formula |
| CN107868347A (en) * | 2017-11-27 | 2018-04-03 | 桂林市和鑫防水装饰材料有限公司 | Anticracking ethylene propylene diene rubber |
| CN109023207A (en) * | 2018-08-28 | 2018-12-18 | 四川中物红宇科技有限公司 | A kind of Coating Materials and automobile lasso surface treatment method for the surface treatment of automobile lasso |
-
2011
- 2011-06-30 CN CN2011101818216A patent/CN102276931A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103724838A (en) * | 2013-12-20 | 2014-04-16 | 柳州日高橡胶制品有限责任公司 | Formula of ethylene-propylene-diene monomer |
| CN103724838B (en) * | 2013-12-20 | 2016-09-07 | 柳州日高汽车减振技术有限责任公司 | A kind of ethylene propylene diene rubber |
| CN105385046A (en) * | 2015-11-25 | 2016-03-09 | 四川佳世特橡胶有限公司 | Underground comprehensive pipe rack sealing product formula |
| CN107868347A (en) * | 2017-11-27 | 2018-04-03 | 桂林市和鑫防水装饰材料有限公司 | Anticracking ethylene propylene diene rubber |
| CN109023207A (en) * | 2018-08-28 | 2018-12-18 | 四川中物红宇科技有限公司 | A kind of Coating Materials and automobile lasso surface treatment method for the surface treatment of automobile lasso |
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Application publication date: 20111214 |