CN101747565A - Ethylene propylene diene high-temperature and high-voltage resistant synthetic rubber and preparation method thereof - Google Patents
Ethylene propylene diene high-temperature and high-voltage resistant synthetic rubber and preparation method thereof Download PDFInfo
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- CN101747565A CN101747565A CN200810233264A CN200810233264A CN101747565A CN 101747565 A CN101747565 A CN 101747565A CN 200810233264 A CN200810233264 A CN 200810233264A CN 200810233264 A CN200810233264 A CN 200810233264A CN 101747565 A CN101747565 A CN 101747565A
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Abstract
The invention discloses ethylene propylene diene high-temperature and high-voltage resistant synthetic rubber and a preparation method thereof. The ethylene propylene diene high-temperature and high-voltage resistant synthetic rubber is formed by preparing the following raw materials by weight part: ethylene propylene diene 4045, zinc oxide, anti-aging agent MB, anti-aging agent 124, high abrasion carbon black, spray carbon black, three-wire oil and ferrous metal superoxide DOP, The synthetic rubber becomes a highest product in domestic similar products, and the quality thereof is manufactured by low-price raw materials, not high-cost raw materials; and the user requirements of a matched product in high-temperature and high-voltage occasions are satisfied.
Description
Technical field
The present invention relates to a kind of composition of rubber or derivatives thereof, relate in particular to a kind of Ethylene Propylene Terpolymer high temperature high voltage resistant synthetic rubber and preparation method thereof.
Background technology
Rubber items such as rubber gasket, circle, rubber hose and travelling belt thereof are widely used in each industrial circles such as mine, metallurgy, chemical industry, machinery, light textile, medicine, heating power, thermoelectricity, have once brought into play positive effect for scientific research and industrial development.However, along with the continuous development of science and technology and industry is also more and more higher to its service requirements, working conditions is also more and more harsher, as not only requiring acid and alkali-resistance in some special industry, but also requires high temperature high voltage resistant, could satisfy service requirements.And the high temperature resistant index of present domestic terpolymer EP rubber goods can only reach 135 ℃, the high pressure resistant 1.6Mpa of reaching.Therefore the gasket on the plate-type heat exchanger is normally adorned a cooling setter in addition when the superheated vapour occasion that is used for 200 ℃, satisfies service requirements, and this has just increased use cost.
The high temperature resistant index of external like product reaches 150 ℃, high pressure resistant 1.6Mpa.Make the use range of the lower rubber item of this cost of Ethylene Propylene Terpolymer be subjected to certain limitation for these reasons.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, provide a kind of high temperature high voltage resistant, preparation technology is simple, cost is low, the scope of application is wide and obviously reduce use cost, improve the Ethylene Propylene Terpolymer high temperature high voltage resistant synthetic rubber in work-ing life.
Another object of the present invention has provided the elastomeric production method of a kind of Ethylene Propylene Terpolymer high temperature high voltage resistant.
To achieve these goals, technical scheme of the present invention is as follows:
Ethylene Propylene Terpolymer high temperature high voltage resistant synthetic rubber of the present invention is to be compared through being prepared from by following raw materials by weight portion:
Ethylene Propylene Terpolymer 4045 20-24
Active zinc flower 1-2
Antioxidant MB 0.3-1
Anti-aging agent 124 0.3-1
High wear-resistant carbon black 10-12
Spray carbon black 4-5
Third fractional oil 1-3
Ferrous metal superoxide DCP 1-2.
The present invention be with Ethylene Propylene Terpolymer as the synthetic masterbatch, also be that crosslinked material plays the adherent effect; And addition material such as active zinc flower have extremely strong relaxation activity, also have transparent and Decomposition; High wear-resistant carbon black and spray carbon black are a kind of good filling raw materials, use the effect that strengthens hardness that is beneficial to after two kinds of mixing; Third fractional oil plays crosslinked ramollescence, and DCP is the ferrous metal superoxide that chemical industry five factories in Fushun produce, and will become the best interpolation element of vulcanization system thermotolerance, but its consumption GPRS is good.As for antioxidant MB and anti-aging agent 124 anti-aging effects, both share and can strengthen synergy.It strengthens the more abundant of synergy performance the above-mentioned raw materials compatibility.
The preparation method's of product of the present invention processing step is as follows:
1), when the temperature of roller reaches preset temperature before and after the rubber mixing machine, with Ethylene Propylene Terpolymer 4045 rubber mass of formula ratio add opening rubber mixing machine repeatedly mastication repeatedly and reach specific time, loosen sheet under the roller of back, make material become ribbon by the triangle bag;
2), get the high wear-resistant carbon black and the spray carbon black of formula ratio, both mix the back and become mixed carbon black standby;
3), added 1/2 mixed carbon black, the third fractional oil of formula ratio, antioxidant MB, anti-aging agent 124 roll extrusion successively 5 minutes;
4), the DCP that adds the active zinc flower of formula ratio, remaining mixed carbon black, formula ratio more successively continues mixing film releasing after the scheduled time.
The described specified time is 9-11 minute, and wherein preceding roll spacing in 4-5 minute is 5mm, and back 5-6 minute roll spacing is 2mm.
The described scheduled time is 35-40 minute.
Advantageous effect of the present invention is as follows:
The present invention compared with prior art, because the compatibility of formulating of recipe is reasonable, make various additives strengthen synergy, and prove that after testing every technical performance index all obviously is better than the GB7759-87 set quota, particularly the tensile strength of rubber is 14.6MP, high pressure resistantly reaches 13.5Mpa, 100 ℃ * 24h of air compression set 25% behind 256 ℃ * 240h of superheated vapour.Not only become the highest level of domestic like product; Also be better than simultaneously external like product.Go out to be equivalent to quality with expensive raw material finished product with the raw material production of low price, make its scope of application wide, satisfy the service requirements of High Temperature High Pressure occasion and its auxiliary products, dress cooling setter obviously reduces use cost and increases the service life in addition.Objectively also improve and promoted the state of the art and the scope of application with its auxiliary products.
Embodiment
The present invention further specifies summary of the invention by embodiment, but not limit by embodiment.
Embodiment 1
Get Ethylene Propylene Terpolymer 4045 rubber of 24 parts of weight and treat that the preceding roll temperature of rubber mixing machine reaches 50-60 ℃, carries out repeatedly mastication 28 times in the adding opening rubber mixing machine when back roll temperature reaches 60-70 ℃, 5mm is transferred in roll spacing in the time of preceding 4 minutes, 2mm is transferred in back roll spacing in 5 minutes, loosen sheet under the roller of back, play three triangle bags and make sheet material become the ribbon of subsequent handling for the benefit of; After the spray carbon black of getting 10 parts of weight high wear-resistant carbon blacks and 5 parts of weight mixed, it was standby to become mixed carbon black; Anti-aging agent 124 roll extrusion 5 minutes that add 1/2 amount mixed carbon black, 1 part of weight third fractional oil, the antioxidant MB of 1 part of weight, 0.3 part of weight successively; Add 1 part of weight active zinc flower more successively, remaining mixed carbon black, 1 part of weight ferrous metal superoxide DCP (productions of Fushun chemical industry five factories) continued mixing 35 minutes, put afterwards that sheet is ethylene-propylene-non-conjugated diene rubber under the roller.
Embodiment 2
When roll temperature before the rubber mixing machine reach 55 ℃, after roll temperature reach 65 ℃ and Ethylene Propylene Terpolymer 4045 rubber of 20 parts of weight are added in the opening rubber mixing machines carry out repeatedly mastication 30 times, preceding 5 minutes roll spacing 5mm, the 6 minutes roll spacing 2mm in back, loosen sheet under the roller of back, play three triangle bags and make sheet material become ribbon to be beneficial to subsequent handling; Get the high wear-resistant carbon black of 12 parts of weight and the spray carbon black of 4 parts of weight, it is standby to become mixed carbon black after both mix; Anti-aging agent 124 roll extrusion 8 minutes that add the antioxidant MB of the third fractional oil of 1/2 mixed carbon black, 3 parts of weight, 0.3 part of weight, 1 part of weight successively; Add the ferrous metal superoxide DCP that 2 parts of weight active zinc flowers, remaining mixed carbon black, 2 parts of weight Fushun chemical industry five factories produce again successively and continued mixing 40 minutes, put sheet under the roller of back, be finished product.
Embodiment 3
With embodiment 2 identical conditions, Ethylene Propylene Terpolymer 4045 rubber of getting 23 parts of weight are gone into rubber mixing machine and are carried out mastication; Get the high wear-resistant carbon black of 11 parts of weight and the spray carbon black of 4.5 parts of weight, it is standby to become mixed carbon black after both mix; Anti-aging agent 124 roll extrusion 8 minutes that add the antioxidant MB of the third fractional oil of 1/2 mixed carbon black, 2 parts of weight, 0.8 part of weight, 0.5 part of weight successively; Add 1.5 parts of zinc oxide, remaining mixed carbon black, 1.5 parts DCP more successively and continue mixing film releasing, be finished product.
Synthetic rubber with the inventive method is produced, detect its every performance index such as following table through GB7759-87:
| Sequence number | Interventions Requested | Index | Detected value | Conclusion |
| ??1 | Tensile strength MPa | ??13.5 | Qualified | |
| ??2 | Tensile yield % | ?≥120 | ??341 | Qualified |
| ??3 | Setafter break % | ??15.6 | Qualified | |
| ??4 | Hardness (Shao Er A) degree | ??75 | Qualified | |
| ??5 | Tear strength KN/m | ?≥10 | ??44.8 | Qualified |
| ??6 | 100 ℃ * 24h of air compression set % | ??25 | Qualified | |
| ??7 | 256 ℃ * 240h of superheated vapour tensile strength | ??14.6 | Qualified | |
| Annotate | Cure conditions: 200 ℃, 14min |
Claims (6)
1. Ethylene Propylene Terpolymer high temperature high voltage resistant synthetic rubber is characterized in that by following raw materials according by weight through being prepared from:
Ethylene Propylene Terpolymer 4045 20-24
Active zinc flower 1-2
Antioxidant MB 0.3-1
Anti-aging agent 124 0.3-1
High wear-resistant carbon black 10-12
Spray carbon black 4-5
Third fractional oil 1-3
Ferrous metal superoxide DCP 1-2.
2. Ethylene Propylene Terpolymer high temperature high voltage resistant synthetic rubber according to claim 1 is characterized in that by following raw materials according by weight through being prepared from:
Ethylene Propylene Terpolymer 4,045 23
Active zinc flower 1.5
Antioxidant MB 0.8
Anti-aging agent 124 0.5
High wear-resistant carbon black 11
Spray carbon black 4.5
Third fractional oil 2
Ferrous metal superoxide DCP 1.5.
3. one kind prepares the described elastomeric method of claim 1, it is characterized in that processing step is as follows:
1), when the temperature of roller reaches preset temperature before and after the rubber mixing machine, with Ethylene Propylene Terpolymer 4045 rubber mass of formula ratio add opening rubber mixing machine repeatedly mastication repeatedly and reach the specified time, loosen sheet under the roller of back, make material become strip by the triangle bag;
2), get the high wear-resistant carbon black and the spray carbon black of formula ratio, it is standby to become mixed carbon black after both mix;
3), added 1/2 mixed carbon black, the third fractional oil of formula ratio, antioxidant MB, anti-aging agent 124 roll extrusion successively 5 minutes;
4), the DCP that adds the active zinc flower of formula ratio, remaining mixed carbon black, formula ratio more successively continues mixing film releasing after the scheduled time.
4. method according to claim 3 is characterized in that operation 1) described in specified time be 9-11 minute, wherein before roll spacing in 4-5 minute be 5mm, back 5-6 minute roll spacing is 2mm.
5. method according to claim 3 is characterized in that operation 4) described in the scheduled time be 35-40 minute.
6. method according to claim 3 is characterized in that operation 1) described in preset temperature be respectively 50-60 ℃ and 60-70 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810233264A CN101747565A (en) | 2008-12-09 | 2008-12-09 | Ethylene propylene diene high-temperature and high-voltage resistant synthetic rubber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810233264A CN101747565A (en) | 2008-12-09 | 2008-12-09 | Ethylene propylene diene high-temperature and high-voltage resistant synthetic rubber and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101747565A true CN101747565A (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810233264A Pending CN101747565A (en) | 2008-12-09 | 2008-12-09 | Ethylene propylene diene high-temperature and high-voltage resistant synthetic rubber and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101747565A (en) |
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- 2008-12-09 CN CN200810233264A patent/CN101747565A/en active Pending
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| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Bin Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100623 |