CN104479186A - Dynamic-ozone-resistant chloroprene rubber composition and preparation method thereof - Google Patents
Dynamic-ozone-resistant chloroprene rubber composition and preparation method thereof Download PDFInfo
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Abstract
A dynamic-ozone-resistant chloroprene rubber composition is composed of, by mass, 100 parts of chloroprene rubber (CR), 3.5-7 parts of zinc oxide, 3-5.5 parts of magnesium oxide, 0.5-2 parts of 2, 2' -Dithio-dibenzo thiazole (DM), 0.5-2 parts of 3 -methyl-2-thiazolidinethione (MTT-80), 0.5-2 parts of stearic acid, 1.5-3.5 parts of Poly (1,2-dihydro-2,2,4-trimethyl-quinoline) (RD), 1.5-3.5 parts of N-isopropyl-N`-phenylenediamine (4010NA), and 0.5-3 parts of protection wax. The dynamic-ozone-resistant performance of the single-component chloroprene rubber is improved, and the service life of a rubber hose of an automobile is prolonged.
Description
Technical field
The present invention relates to rubber materials, be specifically related to a kind of chloroprene rubber composition of resistance to dynamic ozone and preparation method thereof.
Background technology
Along with the fast development of automobile industry, automobile rubber flexible pipe receives the concern of more and more auto vendor as important safety parts of automobile.Due to automobile rubber flexible pipe in working order under be usually in shake and high temperature semi-closed state, when particularly road conditions are bad, it can work under the combinational environment having certain ozone concn, this just requires that automobile rubber flexible pipe has higher dynamic ozone resistance, and under 100pphm × 40 DEG C × extend 20% × frequency 0.5HZ dynamic ozone environment, 72h does not occur crack performance.Mostly domestic normally used dynamic resistance to ozone Chloroprene rubber formula is two or more rubber blendings, add compounding procedure, also the dispersed of epoxy glue is unfavorable for, and domestic general one-component Chloroprene rubber formula does not reach the higher dynamic ozone resistance of automobile rubber flexible pipe under this condition, such as CN 102093603A discloses a kind of chloroprene rubber for automotive hose, this formula is made up of following component: chloroprene rubber rubber 100, zinc oxide 3 ~ 10, magnesium oxide 3 ~ 10, anti-aging agent 1 ~ 2, paraffin 0.5 ~ 2, tinting material 3 ~ 10, titanium dioxide 5 ~ 20, light calcium carbonate 20 ~ 60, White Carbon black 20 ~ 60, trioctyl trimellitate 5 ~ 15, dioctyl phthalate (DOP) 5 ~ 15, vulcanizing agent ETU 0.3 ~ 1.5, altax 1 ~ 2.It is 50pphm that this rubber only meets ozone concn, and envrionment temperature is 40 DEG C, 72h flawless under rubber test piece stretching 20% amount static conditions.Therefore a kind of high chloroprene rubber composition of resistance to dynamic ozone of exploitation and preparation method thereof is imperative.
Summary of the invention
Main purpose of the present invention is to provide effective chloroprene rubber composition of a kind of resistance to dynamic ozone and preparation method thereof, to overcome above-mentioned defect.
Technical scheme of the present invention is:
A kind of chloroprene rubber composition of resistance to dynamic ozone, this chloroprene rubber composition of resistance to dynamic ozone is prepared from by the component of following mass parts:
Chloroprene rubber, 100 mass parts; Zinc oxide, 3.5 ~ 7 mass parts; Magnesium oxide, 3 ~ 5.5 mass parts; Altax, 0.5 ~ 2 mass parts; Captax TT-80,0.5 ~ 2 mass parts; Stearic acid, 0.5-2 mass parts; Anti-aging agent RD, 1.5 ~ 3.5 mass parts; Antioxidant 4010NA, 1.5 ~ 3.5 mass parts; Protection wax, 0.5 ~ 3 mass parts; Microcrystalline Wax, 1 ~ 3.5 mass parts; Fast extrusion carbon black N550,20 ~ 70 mass parts; Natural semi-reinforcing hydrocarbon black 10 ~ 60 mass parts; Potter's clay, 5 ~ 25 mass parts; Dibutyl phthalate, 15 ~ 30 mass parts.
Described altax is 2,2'-dithio-bis-benzothiazole;
Described antioxidant 4010NA is N-sec.-propyl-N '-diphenyl-para-phenylene diamine, and anti-aging agent RD is 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer.
Rubber of the present invention is domestic non-sulphur adjustment type chloroprene rubber, and the advantage of this chloroprene rubber is that prepared rubber unvulcanizate time of scorch is long, processing safety and shelf stability all better, meanwhile, adds not roll banding in man-hour, easy slitting bottom sheet opening on refining glue.
The selection of vulcanization system is particularly important, traditional vulcanization system selects the ethylene thiocarbamide (NA-22) of pollution usually, and this vulcanization accelerator is forbidden by European Union, rubber unvulcanizate time of scorch prepared by this vulcanizing agent is partially short, is unfavorable for the storage of rubber unvulcanizate.The present invention adopts novel 3-methyl-2-thiazole thione (MTT-80) promotor, not only has the physicals that prepared by accelerant N A-22, cross-linked rubber has, and has greatly improved in time of scorch and complete processing.
Due to higher to the performance requriements of resistance to dynamic ozone of cross-linked rubber; so the selection of protection system is more crucial to the present invention; antioxidant 4010NA to cross-linked rubber ozone ageing, deflect be full of cracks and light-heat aging have excellent protection function; anti-aging agent RD can protect the thermal ageing of condition harshness; protection wax easily moves to the surface of vulcanized rubber; layer protecting film is formed on the top layer of sizing material; stop ozone to the destruction of vulcanized rubber; described Microcrystalline Wax fusing point is 61-65 DEG C; be the Microcrystalline Wax of large-scale carbon number distribution, there is the resistance to dynamic ozone effect of efficient physics.The present invention finds that above-mentioned four kinds of anti-aging agent use simultaneously can obtain excellent resistance to dynamic ozone performance, the rubber combination standard film obtained in embodiment 1-5 stretch 20% time be 100pphm at ozone concn, temperature is 40 DEG C, frequency is under the dynamic ozone environment of 0.5HZ, continuous placement 72h, all standard films all do not chap.
In the present invention, the preparation method of described rubber combination comprises chloroprene rubber by the feed composition of rubber according to claim 1 and weight ratio thereof, stearic acid, antioxidant 4010NA, anti-aging agent RD, protection wax and Microcrystalline Wax add mill mixing 3 ~ 5 minutes, then dibutyl phthalate, potter's clay, natural semi-reinforcing hydrocarbon black is added, fast extrusion carbon black N550; Carbon black is all uniformly dispersed and adds zinc oxide, magnesium oxide, altax again, and captax TT-80 mixes 3 ~ 5 minutes, is then taken out by the mixture obtained, and under 150 DEG C of conditions, in vulcanizing press, carry out compression molding, curing time is 30 minutes, obtains rubber combination.
The invention has the beneficial effects as follows:
The chloroprene rubber composition of resistance to dynamic ozone of the present invention, improves the resistance to dynamic ozone performance of one-component chloroprene rubber, meets the high requirement of automobile rubber flexible pipe to dynamic ozone resistance, improves the work-ing life of rubber hose on automobile.The present invention adopts 3-methyl-2-thiazole thione (MTT-80) to replace the ethylene thiocarbamide (NA-22) forbidden by European Union, has more environmental protection.Meanwhile, only with single domestic non-sulfur modified polychloroprene rubber, reduce production cost, without the need to other rubber blendings, be convenient to processing.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
The chloroprene rubber trade mark that the present invention adopts is SN-233, is produced by Shan Na synthetic rubber company limited; Carbon black N550 of the present invention, natural semi-reinforcing hydrocarbon black are that Wuxi Shuan Cheng carbon black company limited produces.Captax TT-80 of the present invention is that upper seascape favour Chemical Co., Ltd. produces, altax is that Shandong Yanggu Chemical Co., Ltd. produces, antioxidant 4010NA is that Jiangsu Sheng'Ao Chemical Technology Co., Ltd produces, and anti-aging agent RD is that Kemai Chemical Co., Ltd. produces.Zinc oxide, magnesium oxide are that China Chemical Industry limited rubber company produces; The stearic acid of the present invention's employing is Yangzhou Rui Yu novel material company limited and produces, and the potter's clay that the present invention adopts is China Kaolin Clay Co., Ltd. and produces, and the dibutyl phthalate that the present invention adopts is Suzhou three and stands trade Co., Ltd's production.The Microcrystalline Wax trade mark that the present invention adopts is Okrein1900, can be huge rock Chemical Co., Ltd. and buys.
The each component of embodiment 1 to 5 is in table 1:
The preparation method of embodiment 1 to 5 mixes 5 minutes for chloroprene rubber, zinc oxide, stearic acid, antioxidant 4010NA, anti-aging agent RD, protection wax and Microcrystalline Wax being added mill by composition weight each in table 1, then dibutyl phthalate, potter's clay, natural semi-reinforcing hydrocarbon black is added, fast extrusion carbon black N550; Carbon black is all uniformly dispersed and adds magnesium oxide, altax again, captax TT-80 mixes 5 minutes, then the mixture obtained is taken out, and under 150 DEG C of conditions, compression molding is carried out in vulcanizing press, curing time is 30 minutes, and obtaining thickness is that the rubber combination of 2 millimeters is followed successively by S1, S2, S3, S4, S5.
Table 1
Mass unit: gram
Rubber combination experimental performance prepared by above-mentioned example detects as table 2:
Table 2
As can be seen from Table II, rubber combination S1-S5 prepared by benzene inventive embodiments 1-5 is under the state of 20% amount of tension, under the dynamic resistance to ozone environment that ozone concn is 100pphm, temperature is 40 DEG C, frequency is 0.5HZ, place 72h continuously and do not occur crack performance.Illustrate that rubber combination provided by the invention has good resistance to dynamic ozone performance.
Embodiment recited above is only be described the preferred embodiment of the present invention; not the spirit and scope of the present invention are limited; do not departing under design concept prerequisite of the present invention; the various modification that in this area, common engineering technical personnel make technical scheme of the present invention and improvement; all should fall into protection scope of the present invention, the technology contents of request protection of the present invention is all recorded in detail in the claims.
Claims (4)
1. the chloroprene rubber composition of resistance to dynamic ozone, is characterized in that this chloroprene rubber composition of resistance to dynamic ozone is prepared from by the component of following mass parts:
Chloroprene rubber, 100 mass parts; Zinc oxide, 3.5 ~ 7 mass parts; Magnesium oxide, 3 ~ 5.5 mass parts; Altax, 0.5 ~ 2 mass parts; Captax TT-80,0.5 ~ 2 mass parts; Stearic acid, 0.5-2 mass parts; Anti-aging agent RD, 1.5 ~ 3.5 mass parts; Antioxidant 4010NA, 1.5 ~ 3.5 mass parts; Protection wax, 0.5 ~ 3 mass parts; Microcrystalline Wax, 1 ~ 3.5 mass parts; Fast extrusion carbon black N550,20 ~ 70 mass parts; Natural semi-reinforcing hydrocarbon black, 10 ~ 60 mass parts; Potter's clay, 5 ~ 25 mass parts; Dibutyl phthalate, 15 ~ 30 mass parts.
2. the one chloroprene rubber composition of resistance to dynamic ozone according to claim 1, wherein, described chloroprene rubber is non-sulphur adjustment type chloroprene rubber.
3. the one chloroprene rubber composition of resistance to dynamic ozone according to claim 1, described Microcrystalline Wax fusing point is 61-65 DEG C.
4. as described in one of as any in claim 1 to 2, a preparation method for the chloroprene rubber composition of resistance to dynamic ozone, is characterized in that: by following component: chloroprene rubber, 100 mass parts; Stearic acid, 0.5-2 mass parts; Anti-aging agent RD, 1.5 ~ 3.5 mass parts; Antioxidant 4010NA, 1.5 ~ 3.5 mass parts; Protection wax, 0.5 ~ 3 mass parts; Microcrystalline Wax, 1 ~ 3.5 mass parts adds mill mixing 3 ~ 5 minutes; Then dibutyl phthalate is added, 15 ~ 30 mass parts; Potter's clay, 5 ~ 25 mass parts; Fast extrusion carbon black N550,20 ~ 70 mass parts; Natural semi-reinforcing hydrocarbon black 10 ~ 60 mass parts; Treat that carbon black is all uniformly dispersed, then add zinc oxide, 3.5 ~ 7 mass parts; Magnesium oxide, 3 ~ 5.5 mass parts; Altax, 0.5 ~ 2 mass parts; Captax TT-80,0.5 ~ 2 mass parts; Mix 3 ~ 5 minutes, then taken out by the mixture obtained, and under 150 DEG C of conditions, in vulcanizing press, carry out compression molding, curing time is 30 minutes, obtains rubber combination.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105061354A (en) * | 2015-08-21 | 2015-11-18 | 山东阳谷华泰化工股份有限公司 | 3-methyl-2-thiazole thioketone and low-cost environmentally-friendly preparing method thereof |
| CN105086032A (en) * | 2015-09-09 | 2015-11-25 | 宁波硫华聚合物有限公司 | Pre-disperse master batch for chloroprene rubber vulcanization crosslinking and preparation method thereof |
| CN105273267A (en) * | 2015-11-24 | 2016-01-27 | 南京七四二五橡塑有限责任公司 | Environment-friendly low-smoke flame-retardant rubber composition as well as preparation method and application of environment-friendly low-smoke flame-retardant rubber composition |
| CN106317527A (en) * | 2016-08-30 | 2017-01-11 | 安徽中鼎密封件股份有限公司 | Connecting plate as well as preparation method and application thereof |
| CN106750683A (en) * | 2016-12-13 | 2017-05-31 | 芜湖集拓橡胶技术有限公司 | A kind of automotive air-conditioning system neoprene cooling water pipe formula |
| CN106867062A (en) * | 2017-03-24 | 2017-06-20 | 安徽高德韦尔精密部件有限公司 | A kind of new neoprene elastomeric material |
| CN106947132A (en) * | 2017-05-06 | 2017-07-14 | 安徽瑞研新材料技术研究院有限公司 | A kind of degradable flexible pipe production procedure of nano environmental protection |
| CN108676216A (en) * | 2018-05-07 | 2018-10-19 | 广东贝洛新材料科技有限公司 | A kind of aerospace connectors chlorobutadiene sizing material and preparation method thereof of resistance to 150 DEG C of high temperature |
| CN109912896A (en) * | 2019-03-29 | 2019-06-21 | 珠海科茂威新材料有限公司 | A kind of vulcanization of rubber delayed-action activator and its application |
| CN110194856A (en) * | 2019-02-25 | 2019-09-03 | 青岛铁路橡胶厂 | A kind of pollution-free chloroprene rubber composition of resistance to ozone |
| CN110484165A (en) * | 2019-07-18 | 2019-11-22 | 南京利德东方橡塑科技有限公司 | A kind of high- and low-temperature resistance environment-friendly type neoprene adhesive and preparation method |
| CN111363214A (en) * | 2020-03-06 | 2020-07-03 | 安徽中鼎密封件股份有限公司 | ETU-free distilled water-resistant and copper corrosion-resistant chloroprene rubber and preparation method thereof |
| CN115678135A (en) * | 2023-01-04 | 2023-02-03 | 中国万宝工程有限公司 | Rubber composition with vulcanization promoting effect |
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| CN105061354A (en) * | 2015-08-21 | 2015-11-18 | 山东阳谷华泰化工股份有限公司 | 3-methyl-2-thiazole thioketone and low-cost environmentally-friendly preparing method thereof |
| CN105086032A (en) * | 2015-09-09 | 2015-11-25 | 宁波硫华聚合物有限公司 | Pre-disperse master batch for chloroprene rubber vulcanization crosslinking and preparation method thereof |
| CN105273267A (en) * | 2015-11-24 | 2016-01-27 | 南京七四二五橡塑有限责任公司 | Environment-friendly low-smoke flame-retardant rubber composition as well as preparation method and application of environment-friendly low-smoke flame-retardant rubber composition |
| CN106317527A (en) * | 2016-08-30 | 2017-01-11 | 安徽中鼎密封件股份有限公司 | Connecting plate as well as preparation method and application thereof |
| CN106750683A (en) * | 2016-12-13 | 2017-05-31 | 芜湖集拓橡胶技术有限公司 | A kind of automotive air-conditioning system neoprene cooling water pipe formula |
| CN106867062A (en) * | 2017-03-24 | 2017-06-20 | 安徽高德韦尔精密部件有限公司 | A kind of new neoprene elastomeric material |
| CN106947132A (en) * | 2017-05-06 | 2017-07-14 | 安徽瑞研新材料技术研究院有限公司 | A kind of degradable flexible pipe production procedure of nano environmental protection |
| CN108676216A (en) * | 2018-05-07 | 2018-10-19 | 广东贝洛新材料科技有限公司 | A kind of aerospace connectors chlorobutadiene sizing material and preparation method thereof of resistance to 150 DEG C of high temperature |
| CN110194856A (en) * | 2019-02-25 | 2019-09-03 | 青岛铁路橡胶厂 | A kind of pollution-free chloroprene rubber composition of resistance to ozone |
| CN109912896A (en) * | 2019-03-29 | 2019-06-21 | 珠海科茂威新材料有限公司 | A kind of vulcanization of rubber delayed-action activator and its application |
| CN110484165A (en) * | 2019-07-18 | 2019-11-22 | 南京利德东方橡塑科技有限公司 | A kind of high- and low-temperature resistance environment-friendly type neoprene adhesive and preparation method |
| CN110484165B (en) * | 2019-07-18 | 2021-09-24 | 南京利德东方橡塑科技有限公司 | High-temperature-resistant and low-temperature-resistant environment-friendly chloroprene rubber adhesive and preparation method thereof |
| CN111363214A (en) * | 2020-03-06 | 2020-07-03 | 安徽中鼎密封件股份有限公司 | ETU-free distilled water-resistant and copper corrosion-resistant chloroprene rubber and preparation method thereof |
| CN115678135A (en) * | 2023-01-04 | 2023-02-03 | 中国万宝工程有限公司 | Rubber composition with vulcanization promoting effect |
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Application publication date: 20150401 |