CN104725874A - High-tear-resistance heat-conducting silicone rubber and preparation method thereof - Google Patents
High-tear-resistance heat-conducting silicone rubber and preparation method thereof Download PDFInfo
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- CN104725874A CN104725874A CN201410787222.2A CN201410787222A CN104725874A CN 104725874 A CN104725874 A CN 104725874A CN 201410787222 A CN201410787222 A CN 201410787222A CN 104725874 A CN104725874 A CN 104725874A
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Abstract
The invention discloses a high-tear-resistance heat-conducting silicone rubber which comprises the following components in parts by weight: 120-200 parts of methylvinyl silicone rubber, 24-30 parts of high-wear-resistance carbon black, 50-70 parts of precipitation-process silica white, 33-48 parts of ceramic powder 12-18 parts of aluminum powder, 43-53 parts of silicon nitride, 11-17 parts of hydroxy silicon oil, 0.1-0.5 part of chloroplatinic acid, 8-11 parts of silane coupling agent, 2-4 parts of alkynol inhibitor, 1-2 parts of aromatic oil and 11-13 parts of 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane vulcanizing agent. The silicone rubber has the advantages of low price, favorable product appearance, high tear strength, favorable heat-conducting property and the like.
Description
Technical field
The present invention relates to a kind of rubber product and preparation method thereof, particularly relate to a kind of high tear heat-conducting silicon rubber and preparation method thereof.
Background technology
Silicon rubber is a kind of special synthetic rubber, it has excellent high-and low-temperature resistance, electrical insulating property, moistureproofness, chemical stability and resistance to ozone, UV resistant, fire prevention, the feature such as nontoxic, in national defense industry and each department of national economy, there is very important purposes, the aspects such as aviation, space travel, electrical equipment, medicine equipment can be widely used in.
Summary of the invention
The object of the invention is to for above-mentioned defect of the prior art, provide a kind of cheap, product are good mutually, and tearing toughness is high, high tear heat-conducting silicon rubber of good heat conductivity and preparation method thereof.
For achieving the above object, present invention employs following technical scheme: a kind of high tear heat-conducting silicon rubber, by weight, it comprises following composition,
In addition, the present invention also provides following attached technical scheme:
Described silane coupling agent comprises at least one in γ-aminopropyl triethoxysilane, γ-(2,3 glycidoxy) propyl trimethoxy silicane, γ-(methacryloxypropyl) propyl trimethoxy silicane, gamma-mercaptopropyltriethoxysilane.
Described alkynol class inhibitor is acetylene basic ring alcohol.
A preparation method for high tear heat-conducting silicon rubber, it comprises the steps:
1) by weight, methyl vinyl silicone rubber 120 ~ 200 parts is put in mixing roll, high wear-resistant carbon black 24 ~ 30 parts, precipitated silica 50 ~ 70 parts, ceramics powder 33 ~ 48 parts, aluminium powder 12 ~ 18 parts, silicon nitride 43 ~ 53 parts, hydroxy silicon oil 11 ~ 17 parts, Platinic chloride 0.1 ~ 0.5 part, silane coupling agent 8 ~ 11 parts, 2 ~ 4 parts, alkynol class inhibitor, aromatic hydrocarbon oil 1 ~ 2 part and two two or five vulcanizing agent 11 ~ 13 parts, and mixing roll temperature is adjusted to 80 ~ 100 DEG C, vacuum tightness is 0.01 ~ 0.1MPa, then start to stir, stirring velocity is 40 ~ 70r/min, churning time is 20 ~ 45 minutes, obtain blend glue stuff,
2) blend glue stuff of gained is left standstill cooling 15 ~ 30 minutes;
3) cooled batch mixing is put on advection tabletting machine and is carried out one step cure, and curing temperature is 100 ~ 200 DEG C, and air pressure is 10 ~ 20MPa, and the time is 30 ~ 50 minutes;
4) material after one step cure is put into baking oven and is carried out post vulcanization, and curing temperature is 30 ~ 250 DEG C, and air pressure is normal pressure, and the time is 5 ~ 7 hours;
5) packaging is produced.
Compared to prior art, advantage of the present invention is, the composition that high tear heat-resistant silicon rubber of the present invention comprises has: methyl vinyl silicone rubber, high wear-resistant carbon black, precipitated silica, ceramics powder, aluminium powder, silicon nitride, hydroxy silicon oil, Platinic chloride, silane coupling agent, alkynol class inhibitor, aromatic hydrocarbons oil content and two two or five vulcanizing agents, silicon rubber of the present invention has cheap, product are mutually good, tearing toughness is high, good heat conductivity, and the advantage such as preparation method is easy.
Embodiment
Below in conjunction with preferred embodiment, technical solution of the present invention is further non-limitingly described in detail.
Embodiment 1:
A kind of high tear heat-conducting silicon rubber, by weight, it comprises following composition,
Wherein, the contents of ethylene of methyl vinyl silicone rubber is 0.05mol%, and molecular weight is roughly 550,000.
Silane coupling agent is the mixing of γ-aminopropyl triethoxysilane and γ-(2,3 glycidoxy) propyl trimethoxy silicane.
Alkynol class inhibitor is acetylene basic ring alcohol.
The preparation method of this high tear heat-conducting silicon rubber comprises the steps:
1) by weight, methyl vinyl silicone rubber 120 parts is put in mixing roll, high wear-resistant carbon black 24 parts, precipitated silica 50 parts, ceramics powder 33 parts, aluminium powder 12 parts, silicon nitride 43 parts, hydroxy silicon oil 11 parts, Platinic chloride 0.1 part, γ-aminopropyl triethoxysilane and γ-(2, 3 glycidoxies) mixed solution 8 parts of propyl trimethoxy silicane, acetylene basic ring is alcohol 2 parts, aromatic hydrocarbon oil 1 part and two two or five vulcanizing agent 11 parts, and mixing roll temperature is adjusted to 80 DEG C, vacuum tightness is-0.01MPa, then start to stir, stirring velocity is 40r/min, churning time is 20 minutes, obtain blend glue stuff,
2) blend glue stuff of gained is left standstill cooling 15 minutes;
3) cooled batch mixing is put on advection tabletting machine and is carried out one step cure, and curing temperature is 100 DEG C, and air pressure is 10MPa, and the time is 30 minutes;
4) material after one step cure is put into baking oven and is carried out post vulcanization, and curing temperature is 30 ~ 250 DEG C, and air pressure is normal pressure, and the time is at least 6 hours;
5) packaging is produced.
Wherein step 4) comprising:
A. during temperature 25 DEG C, sulfuration 15 minutes;
B. during temperature 100 DEG C, sulfuration 60 minutes;
C. during temperature 180 DEG C, sulfuration 120 minutes;
D. during temperature 250 DEG C, sulfuration 220 minutes.
Embodiment 2:
A kind of high tear heat-conducting silicon rubber, by weight, it comprises following composition,
Wherein, the contents of ethylene of methyl vinyl silicone rubber is 0.05mol%, and molecular weight is roughly 550,000.
Silane coupling agent γ-(methacryloxypropyl) propyl trimethoxy silicane.
Alkynol class inhibitor is acetylene basic ring alcohol.
The preparation method of this high tear heat-conducting silicon rubber comprises the steps:
1) by weight, methyl vinyl silicone rubber 200 parts, high wear-resistant carbon black 30 parts, precipitated silica 70 parts, ceramics powder 48 parts, aluminium powder 18 parts, silicon nitride 53 parts, hydroxy silicon oil 17 parts, Platinic chloride 0.5 part, γ-(methacryloxypropyl) propyl trimethoxy silicane 11 parts, alkynol class inhibitors 4 part, aromatic hydrocarbon oil 2 parts and two two or five vulcanizing agent 13 parts is put in mixing roll, and mixing roll temperature is adjusted to 100 DEG C, vacuum tightness is 0.1MPa, then start to stir, stirring velocity is 70r/min, churning time is 45 minutes, obtains blend glue stuff;
2) blend glue stuff of gained is left standstill cooling 30 minutes;
3) cooled batch mixing is put on advection tabletting machine and is carried out one step cure, and curing temperature is 200 DEG C, and air pressure is 10 ~ 20MPa, and the time is 30 ~ 50 minutes;
4) material after one step cure is put into baking oven and is carried out post vulcanization, and curing temperature is 30 ~ 250 DEG C, and air pressure is normal pressure, and the time is at least 6 hours;
5) packaging is produced.
Wherein step 4) comprising:
A. during temperature 25 DEG C, sulfuration 15 minutes;
B. during temperature 100 DEG C, sulfuration 60 minutes;
C. during temperature 180 DEG C, sulfuration 120 minutes;
D. during temperature 250 DEG C, sulfuration 220 minutes.
High tear heat-conducting silicon rubber of the present invention has cheap, and product are good mutually, and tearing toughness is high, good heat conductivity, and the advantage such as preparation method is easy.
It is pointed out that above-mentioned preferred embodiment is only and technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to spirit of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (4)
1. a high tear heat-conducting silicon rubber, is characterized in that: by weight, it comprises following composition,
2. high tear heat-conducting silicon rubber according to claim 1, it is characterized in that: described silane coupling agent comprises at least one in γ-aminopropyl triethoxysilane, γ-(2,3 glycidoxy) propyl trimethoxy silicane, γ-(methacryloxypropyl) propyl trimethoxy silicane, gamma-mercaptopropyltriethoxysilane.
3. high tear heat-conducting silicon rubber according to claim 1, is characterized in that: described alkynol class inhibitor is acetylene basic ring alcohol.
4. the preparation method of the high tear heat-conducting silicon rubber according to any one of claims 1 to 3, is characterized in that it comprises the steps:
1) by weight, methyl vinyl silicone rubber 120 ~ 200 parts is put in mixing roll, high wear-resistant carbon black 24 ~ 30 parts, precipitated silica 50 ~ 70 parts, ceramics powder 33 ~ 48 parts, aluminium powder 12 ~ 18 parts, silicon nitride 43 ~ 53 parts, hydroxy silicon oil 11 ~ 17 parts, Platinic chloride 0.1 ~ 0.5 part, silane coupling agent 8 ~ 11 parts, 2 ~ 4 parts, alkynol class inhibitor, aromatic hydrocarbon oil 1 ~ 2 part and two two or five vulcanizing agent 11 ~ 13 parts, and mixing roll temperature is adjusted to 80 ~ 100 DEG C, vacuum tightness is-0.01 ~-0.1MPa, then start to stir, stirring velocity is 40 ~ 70r/min, churning time is 20 ~ 45 minutes, obtain blend glue stuff,
2) blend glue stuff of gained is left standstill cooling 15 ~ 30 minutes;
3) cooled batch mixing is put on advection tabletting machine and is carried out one step cure, and curing temperature is 100 ~ 200 DEG C, and air pressure is 10 ~ 20MPa, and the time is 30 ~ 50 minutes;
4) material after one step cure is put into baking oven and is carried out post vulcanization, and curing temperature is 30 ~ 250 DEG C, and air pressure is normal pressure, and the time is 5 ~ 7 hours;
5) packaging is produced.
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| CN201410787222.2A CN104725874A (en) | 2014-12-17 | 2014-12-17 | High-tear-resistance heat-conducting silicone rubber and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147241A (en) * | 2016-07-26 | 2016-11-23 | 强新正品（苏州）环保材料科技有限公司 | A kind of preparation method of high intensity silica gel material |
| CN106867422A (en) * | 2017-03-03 | 2017-06-20 | 东莞市华鸿橡塑材料有限公司 | Self-adhesion heat-conducting silica gel sheet and preparation method thereof |
| CN107099149A (en) * | 2017-06-16 | 2017-08-29 | 安徽汉采密封件科技有限公司 | A kind of manufacture method and equipment of silicon rubber O-ring seal |
| CN108373594A (en) * | 2018-04-11 | 2018-08-07 | 宁波依诺汽车电子有限公司 | A kind of LED lamp of automobile composite guide hot glue nanometer heat sink material |
| CN108530906A (en) * | 2018-04-25 | 2018-09-14 | 常州市蓝勖化工有限公司 | A kind of silicon nitride enhancing addition thermal conductive silica gel |
| CN108727826A (en) * | 2018-06-15 | 2018-11-02 | 苏州速传导热电子材料科技有限公司 | A kind of high thermal conductivity silica gel pad and preparation method thereof |
| CN109135294A (en) * | 2018-08-03 | 2019-01-04 | 蚌埠市万科硅材料科技有限公司 | A kind of silicon rubber modified white carbon black composite material |
| CN113527888A (en) * | 2020-04-22 | 2021-10-22 | 北京化工大学 | High-tear-resistance white carbon black/methyl vinyl silicone rubber composite material and preparation method thereof |
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| CN102029752A (en) * | 2009-10-08 | 2011-04-27 | 信越化学工业株式会社 | Thermal conductive silicone rubber composite sheet |
| CN102220006A (en) * | 2011-04-28 | 2011-10-19 | 天津大学 | Mixed filling type thermal conductive silicone rubber composite and preparation method thereof |
| CN103804808A (en) * | 2014-01-23 | 2014-05-21 | 安徽华源电缆集团有限公司 | High-strength smoke-inhibiting high-temperature-resisting cable sheath material |
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Patent Citations (3)
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| CN102029752A (en) * | 2009-10-08 | 2011-04-27 | 信越化学工业株式会社 | Thermal conductive silicone rubber composite sheet |
| CN102220006A (en) * | 2011-04-28 | 2011-10-19 | 天津大学 | Mixed filling type thermal conductive silicone rubber composite and preparation method thereof |
| CN103804808A (en) * | 2014-01-23 | 2014-05-21 | 安徽华源电缆集团有限公司 | High-strength smoke-inhibiting high-temperature-resisting cable sheath material |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147241A (en) * | 2016-07-26 | 2016-11-23 | 强新正品（苏州）环保材料科技有限公司 | A kind of preparation method of high intensity silica gel material |
| CN106867422A (en) * | 2017-03-03 | 2017-06-20 | 东莞市华鸿橡塑材料有限公司 | Self-adhesion heat-conducting silica gel sheet and preparation method thereof |
| CN107099149A (en) * | 2017-06-16 | 2017-08-29 | 安徽汉采密封件科技有限公司 | A kind of manufacture method and equipment of silicon rubber O-ring seal |
| CN108373594A (en) * | 2018-04-11 | 2018-08-07 | 宁波依诺汽车电子有限公司 | A kind of LED lamp of automobile composite guide hot glue nanometer heat sink material |
| CN108530906A (en) * | 2018-04-25 | 2018-09-14 | 常州市蓝勖化工有限公司 | A kind of silicon nitride enhancing addition thermal conductive silica gel |
| CN108727826A (en) * | 2018-06-15 | 2018-11-02 | 苏州速传导热电子材料科技有限公司 | A kind of high thermal conductivity silica gel pad and preparation method thereof |
| CN109135294A (en) * | 2018-08-03 | 2019-01-04 | 蚌埠市万科硅材料科技有限公司 | A kind of silicon rubber modified white carbon black composite material |
| CN113527888A (en) * | 2020-04-22 | 2021-10-22 | 北京化工大学 | High-tear-resistance white carbon black/methyl vinyl silicone rubber composite material and preparation method thereof |
| CN113527888B (en) * | 2020-04-22 | 2022-11-29 | 北京化工大学 | High-tear-resistance white carbon black/methyl vinyl silicone rubber composite material and preparation method thereof |
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