CN116003926A - High-heat-conductivity high-toughness chlorinated butyl rubber equalizing plate - Google Patents
High-heat-conductivity high-toughness chlorinated butyl rubber equalizing plate Download PDFInfo
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- CN116003926A CN116003926A CN202211684202.3A CN202211684202A CN116003926A CN 116003926 A CN116003926 A CN 116003926A CN 202211684202 A CN202211684202 A CN 202211684202A CN 116003926 A CN116003926 A CN 116003926A
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- butyl rubber
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Abstract
The invention relates to a high-heat-conductivity high-toughness chlorinated butyl rubber equalizing plate which is manufactured by using chlorinated butyl rubber as main rubber and matching with materials such as boron nitride and the like in a formula. The invention uses the chlorinated butyl rubber as the main material of the rubber layer, which endows the product with better heat resistance and toughness, and increases the use times and storage stability. By using chlorinated butyl rubber and boron nitride, and further optimizing the content ranges of the respective components, a uniform pressure plate having a thermal conductivity of 2.5W/MK, a tensile strength of 6.8mpa, and an elongation at break of 580% was prepared.
Description
Technical Field
The invention belongs to the field of composite materials, and particularly relates to a high-heat-conductivity high-toughness chlorinated butyl rubber equalizing plate.
Background
The equalizing plate is an important auxiliary material in the vacuum bag autoclave forming process, and is mainly a plate profile placed on the surface of a prepreg layering. The pressure equalizing plate has the main effects that in the thermosetting process of the prepreg, the prepreg is stressed more uniformly by means of the gravity of the pressure equalizing plate, the temperature transmission is more stable, and the surface of the cured composite material is smoother. At present, in the can feeding process, steel plates, aluminum plates, paperboards, silicon rubber, acrylic rubber and the like can be used as equalizing plates.
In the use process of the equalizing plate, the most important is that the equalizing plate has good ductility, thermal conductivity, heat resistance and certain flame retardance, in the current aerospace autoclave process auxiliary material market, the provided equalizing plate is always gradually crosslinked under the action of a vulcanizing agent in the autoclave high-temperature high-pressure vulcanization process, but the toughness (the toughness is determined by the elongation and strength, the larger the strength is, the better the elongation is), the weaker the toughness of the vulcanized equalizing plate is, the cracking occurs at the position with certain radian and edge angle after repeated use for a period of time, the characteristic of repeated use is lost, the main reason is that the unvulcanized equalizing plate has poor heat resistance, the equalizing plate manufactured by using the chlorinated butyl has better heat resistance, and the equalizing plate manufactured by using the brominated butyl has poor storage stability, because bromine is more active, and meanwhile, the thermal conductivity of the equalizing plate in the current market is general, and the prepreg such as carbon fiber cannot be heated uniformly in the autoclave use process, so that certain differentiation, layering, bridging and other diseases can occur to the final product.
At present, the brominated butyl is used as main rubber in the high-heat-conductivity high-wear-resistance flame-retardant composite rubber equalizing plate, the heat resistance is inferior to that of chlorinated butyl, the vulcanized equalizing plate has weaker toughness, and after the vulcanized equalizing plate is repeatedly used for a period of time, cracking occurs at a certain radian and edge angle, so that the characteristic of repeated use is lost.
Disclosure of Invention
The invention aims at solving the problems in the prior art and provides a high-heat-conductivity high-toughness chlorinated butyl rubber equalizing plate.
The aim of the invention can be achieved by the following scheme:
the invention provides a high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate which comprises the following components in parts by weight:
in one embodiment of the present invention, the reactive rubber comprises one or more of ethylene propylene diene monomer rubber, butadiene rubber and styrene butadiene rubber. The reactive rubber is preferably 5 to 10 parts.
As one embodiment of the present invention, the butyl rubber includes chlorinated butyl rubber. Butyl rubber has excellent air tightness and water resistance, and also has the characteristics of high temperature resistance and repeated use.
As an embodiment of the present invention, the heat conductive filler includes one or more of aluminum oxide, magnesium oxide, zinc oxide, aluminum nitride, boron nitride, and silicon carbide. The heat-conducting filler is used for helping the heat dissipation of the heating position, and reducing the risk of fire or local overhigh temperature.
As an embodiment of the present invention, the flame retardant filler includes one or more of ammonium polyphosphate, melamine, pentaerythritol, ammonium phosphate salts.
As an embodiment of the present invention, the tackifying resin includes one or more of a carbon five-series petroleum resin, a carbon nine-series petroleum resin, a polyurethane resin, a polyester resin, a rosin resin, a phenolic resin, a terpene phenolic resin, a coumarone resin, a hydrogenated rosin phenol resin, a dicyclopentadiene-series petroleum resin, and a styrene-series resin.
As an embodiment of the present invention, the plasticizer includes one or more of polyisobutylene, paraffin oil, naphthene oil, DINP.
As an embodiment of the present invention, the vulcanizing agent includes one of sulfur, zinc oxide, and a thermally reactive phenolic resin.
The invention also provides a preparation method of the high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate, which comprises the following steps:
step one, uniformly mixing reactive rubber, butyl rubber, heat conducting filler, flame retardant filler, tackifying resin and plasticizer to serve as a base material;
step two, adding a vulcanizing agent into the base material, and kneading to prepare a finished product material;
step three: and calendaring the finished product material to obtain sheets, and then compounding release paper to roll to obtain the high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate.
In the first step, the temperature of mixing is 160-180 ℃, and specifically, the materials are uniformly stirred and dispersed by an internal mixer, and the internal mixing temperature is less than 180 ℃.
In the second step, the temperature of kneading is 40-60 ℃, specifically, the temperature of stirring is less than 60 ℃ by using a kneader with cooling water to uniformly stir and disperse.
In the third step, the rolled sheet is rolled by a four-roller machine, wherein the temperature of the first roller is 60-70 ℃, the temperature of the second roller is 50-60 ℃, the temperature of the third roller is 50-60 ℃, and the temperature of the first roller is 40-50 ℃.
The invention also provides an application of the high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate in a vacuum bag autoclave molding process.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention uses the chlorinated butyl rubber as the main material of the rubber layer, which endows the product with better heat resistance and toughness, and increases the use times and storage stability.
(2) By using chlorinated butyl rubber and a heat conducting filler (boron nitride has the highest heat conductivity coefficient in the formula, and the boron nitride is selected as the heat conducting filler to have the best effect), and further optimizing the content range of each component, the uniform pressure plate with the heat conductivity coefficient of 2.5W/MK, the tensile strength of 6.8mpa and the elongation at break of 580% is prepared.
(3) By adopting the method, the uniform pressure plate with high heat conduction, high heat resistance and high toughness is prepared, and the repeated use characteristic can be improved.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a structure of a pressure equalizing plate rolled by release paper;
FIG. 2 is a schematic flow chart of the equalizing plate of the invention when the equalizing plate is rolled by release paper;
wherein 1 is a rubber layer, and 2 is a release layer.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. The following examples, which are presented to provide those of ordinary skill in the art with a detailed description of the invention and to provide a further understanding of the invention, are presented in terms of implementation and operation. It should be noted that the protection scope of the present invention is not limited to the following embodiments, and several adjustments and improvements made on the premise of the inventive concept are all within the protection scope of the present invention.
Example 1
The high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate comprises the following raw materials in percentage by weight: 9% of styrene-butadiene rubber, 24% of chlorinated butyl rubber, 28.5% of boron nitride, 27% of ammonium polyphosphate, 6% of carbon five resin, 5% of paraffin oil and 0.5% of sulfur.
The preparation method comprises the following steps:
step one, stirring and dispersing the reactive rubber, butyl rubber, heat conducting filler, flame retardant filler, tackifying resin and plasticizer uniformly at 170 ℃ by using an internal mixer to serve as a base material;
step two, adding a vulcanizing agent into the base material, kneading, and stirring and dispersing uniformly by using a kneader with cooling water, wherein the stirring temperature is 50 ℃ to prepare a finished product material;
step three: calendaring the finished product material to obtain sheets, wherein the calendaring step is that a four-roller machine is used for calendaring the sheets, the temperature of the first roller is 65 ℃, the temperature of the second roller is 55 ℃, the temperature of the third roller is 55 ℃, and the temperature of the first roller is 45 ℃; and (2) rolling the high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate by using composite release paper, wherein the structure of the rolled equalizing plate is shown in fig. 1, and the high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate is obtained, wherein the upper layer is a rubber layer 1, and the lower layer is a release layer 2.
Example 2
The high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate comprises the following raw materials in percentage by weight: 7% of styrene-butadiene rubber, 26% of chlorinated butyl rubber, 28.5% of boron nitride, 27% of ammonium polyphosphate, 6% of carbon five resin, 5% of paraffin oil and 0.5% of sulfur. The preparation method is the same as in example 1.
Example 3
The high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate comprises the following raw materials in percentage by weight: 5% of styrene-butadiene rubber, 28% of chlorinated butyl rubber, 28.5% of boron nitride, 27% of ammonium polyphosphate, 6% of carbon five resin, 5% of paraffin oil and 0.5% of sulfur. The preparation method is the same as in example 1.
Example 4
The high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate comprises the following raw materials in percentage by weight: 3% of styrene-butadiene rubber, 30% of chlorinated butyl rubber, 28.5% of boron nitride, 27% of ammonium polyphosphate, 6% of carbon five resin, 5% of paraffin oil and 0.5% of sulfur. The preparation method is the same as in example 1.
Example 5
The high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate comprises the following raw materials in percentage by weight: 7% of ethylene propylene diene monomer, 26% of chlorinated butyl rubber, 28.5% of magnesium oxide, 27% of pentaerythritol, 6% of rosin resin, 5% of polyisobutene and 0.5% of phenolic resin.
The preparation method comprises the following steps:
step one, stirring and dispersing the reactive rubber, butyl rubber, heat conducting filler, flame retardant filler, tackifying resin and plasticizer uniformly at 170 ℃ by using an internal mixer to serve as a base material;
step two, adding a vulcanizing agent into the base material, kneading, and stirring and dispersing uniformly by using a kneader with cooling water, wherein the stirring temperature is 50 ℃ to prepare a finished product material;
step three: calendaring the finished product material to obtain sheets, wherein the calendaring step is that a four-roller machine is used for calendaring the sheets, the temperature of the first roller is 65 ℃, the temperature of the second roller is 55 ℃, the temperature of the third roller is 55 ℃, and the temperature of the first roller is 45 ℃; and (3) rolling by using composite release paper to obtain the high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate. The obtained equalizing plate has high heat conduction, high heat resistance and high toughness.
Comparative example 1
A high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate is prepared by adopting brominated butyl rubber as raw materials in table 1 and the preparation method is the same as that in example 1.
Comparative example 2
A high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate is prepared from 16.5% of styrene-butadiene rubber and 16.5% of chlorinated butyl rubber as shown in table 1, and the preparation method is the same as that of example 1.
Comparative example 3
A high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate is prepared by the same preparation method as in example 1, wherein the raw materials of the equalizing plate are shown in table 1, styrene-butadiene rubber is not added, and the chlorinated butyl rubber is 33%.
Table 1 below compares the specific components of each of the raw materials in the above examples:
TABLE 1
The properties of the compounds corresponding to the components of examples 1 to 4 and comparative example 1, respectively, are shown in Table 2.
TABLE 2
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the invention.
Claims (10)
1. The high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate is characterized by comprising the following components in parts by weight:
2. the high thermal conductivity flame retardant chlorinated butyl rubber equalizing plate of claim 1, wherein the reactive rubber comprises one or more of ethylene propylene diene monomer rubber, butadiene rubber, styrene butadiene rubber.
3. The high thermal conductivity flame retardant chlorinated butyl rubber equalizing plate of claim 1, wherein the butyl rubber comprises chlorinated butyl rubber.
4. The high thermal conductivity flame retardant butyl rubber equalizing plate of claim 1, wherein the thermally conductive filler comprises one or more of aluminum oxide, magnesium oxide, zinc oxide, aluminum nitride, boron nitride, silicon carbide.
5. The high thermal conductivity flame retardant butyl rubber equalizing plate of claim 1, wherein the flame retardant filler comprises one or more of ammonium polyphosphate, melamine, pentaerythritol, ammonium phosphate salts, ammonium polyphosphate.
6. The high thermal conductivity flame retardant chlorinated butyl rubber caul plate of claim 1, wherein the tackifying resin comprises one or more of a carbon penta-series petroleum resin, a carbon nona-series petroleum resin, a polyurethane resin, a polyester resin, a rosin resin, a phenolic resin, a terpene phenolic resin, a coumarone resin, a hydrogenated rosin phenol resin, a dicyclopentadiene-series petroleum resin, a styrene-series resin, an alkyl phenolic resin.
7. The high thermal conductivity flame retardant chlorinated butyl rubber caul plate of claim 1, wherein the plasticizer comprises one or more of polyisobutylene, paraffinic oil, naphthenic oil, DINP.
8. The high thermal conductivity flame retardant chlorinated butyl rubber caul plate of claim 1, wherein the vulcanizing agent comprises one of sulfur, metal oxides, phenolic resins.
9. A method for preparing the high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate according to claim 1, comprising the following steps:
step one, uniformly mixing reactive rubber, butyl rubber, heat conducting filler, flame retardant filler, tackifying resin and plasticizer to serve as a base material;
step two, adding a vulcanizing agent into the base material, and kneading to prepare a finished product material;
step three: and calendaring the finished product material to obtain sheets, and then compounding release paper to roll to obtain the high-heat-conductivity flame-retardant chlorinated butyl rubber equalizing plate.
10. A use of the high thermal conductivity flame retardant chlorinated butyl rubber caul plate of claim 1 in a vacuum bag autoclave molding process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211684202.3A CN116003926B (en) | 2022-12-27 | 2022-12-27 | High-heat-conductivity high-toughness chlorinated butyl rubber equalizing plate |
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| CN202211684202.3A CN116003926B (en) | 2022-12-27 | 2022-12-27 | High-heat-conductivity high-toughness chlorinated butyl rubber equalizing plate |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873288A (en) * | 1987-10-07 | 1989-10-10 | Toa Nenryo Kogyo K.K. | Method for preparation of thermoplastic resin composition |
| US5073597A (en) * | 1989-05-26 | 1991-12-17 | Advanced Elastomer Systems, L. P. | Dynamically vulcanized alloys having two copolymers in the crosslinked phase and a crystalline matrix |
| JP2012149148A (en) * | 2011-01-18 | 2012-08-09 | Denso Corp | Rubber composition |
| CN105315564A (en) * | 2015-11-24 | 2016-02-10 | 黄山市尚义橡塑制品有限公司 | In-situ polymerization reinforced high-thermal-conductivity rubber-based composite and preparation method thereof |
| EP3165563A1 (en) * | 2015-11-06 | 2017-05-10 | Kaimann GmbH | Expandable and crosslinkable elastomeric formulation for the manufacture of insulation materials exhibiting high fire retardancy and low smoke creation properties |
| CN107973943A (en) * | 2017-10-20 | 2018-05-01 | 广东信力科技股份有限公司 | A kind of heat conduction soundproof rubber piece and preparation method thereof |
| CN110184003A (en) * | 2019-06-28 | 2019-08-30 | 广东能辉新材料科技有限公司 | Vulcanization type butyl pressure sensitive adhesive |
| CN111378233A (en) * | 2020-04-17 | 2020-07-07 | 科建高分子材料（上海）股份有限公司 | Low-aldehyde butyl damping sheet for automobile and preparation method thereof |
| CN113861876A (en) * | 2021-09-29 | 2021-12-31 | 科建高分子材料（上海）股份有限公司 | Heat-conducting waterproof insulating adhesive tape |
-
2022
- 2022-12-27 CN CN202211684202.3A patent/CN116003926B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873288A (en) * | 1987-10-07 | 1989-10-10 | Toa Nenryo Kogyo K.K. | Method for preparation of thermoplastic resin composition |
| US5073597A (en) * | 1989-05-26 | 1991-12-17 | Advanced Elastomer Systems, L. P. | Dynamically vulcanized alloys having two copolymers in the crosslinked phase and a crystalline matrix |
| JP2012149148A (en) * | 2011-01-18 | 2012-08-09 | Denso Corp | Rubber composition |
| EP3165563A1 (en) * | 2015-11-06 | 2017-05-10 | Kaimann GmbH | Expandable and crosslinkable elastomeric formulation for the manufacture of insulation materials exhibiting high fire retardancy and low smoke creation properties |
| CN105315564A (en) * | 2015-11-24 | 2016-02-10 | 黄山市尚义橡塑制品有限公司 | In-situ polymerization reinforced high-thermal-conductivity rubber-based composite and preparation method thereof |
| CN107973943A (en) * | 2017-10-20 | 2018-05-01 | 广东信力科技股份有限公司 | A kind of heat conduction soundproof rubber piece and preparation method thereof |
| CN110184003A (en) * | 2019-06-28 | 2019-08-30 | 广东能辉新材料科技有限公司 | Vulcanization type butyl pressure sensitive adhesive |
| CN111378233A (en) * | 2020-04-17 | 2020-07-07 | 科建高分子材料（上海）股份有限公司 | Low-aldehyde butyl damping sheet for automobile and preparation method thereof |
| CN113861876A (en) * | 2021-09-29 | 2021-12-31 | 科建高分子材料（上海）股份有限公司 | Heat-conducting waterproof insulating adhesive tape |
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