CN112679957A - Silicone rubber material with good hydrophobicity and preparation method thereof - Google Patents
Silicone rubber material with good hydrophobicity and preparation method thereof Download PDFInfo
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- CN112679957A CN112679957A CN202011410965.XA CN202011410965A CN112679957A CN 112679957 A CN112679957 A CN 112679957A CN 202011410965 A CN202011410965 A CN 202011410965A CN 112679957 A CN112679957 A CN 112679957A
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- silicone oil
- vulcanizing agent
- rubber material
- silicone rubber
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- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 title claims abstract description 25
- 239000004945 silicone rubber Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 229920001971 elastomer Polymers 0.000 claims abstract description 22
- 229920002545 silicone oil Polymers 0.000 claims abstract description 22
- 239000005060 rubber Substances 0.000 claims abstract description 20
- -1 methyl vinyl Chemical group 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000006229 carbon black Substances 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 18
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000004073 vulcanization Methods 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000015556 catabolic process Effects 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- WRXCBRHBHGNNQA-UHFFFAOYSA-N (2,4-dichlorobenzoyl) 2,4-dichlorobenzenecarboperoxoate Chemical group ClC1=CC(Cl)=CC=C1C(=O)OOC(=O)C1=CC=C(Cl)C=C1Cl WRXCBRHBHGNNQA-UHFFFAOYSA-N 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims 1
- 230000002209 hydrophobic effect Effects 0.000 abstract description 2
- 239000000806 elastomer Substances 0.000 description 2
- 229910018557 Si O Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
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Abstract
The invention discloses a silicone rubber material with good hydrophobicity, which comprises the following raw materials: methyl vinyl crude rubber, white carbon black, a vulcanizing agent, zinc stearate and modified silicone oil. A preparation method of a silicone rubber material with good hydrophobicity comprises the following steps: preparing raw materials, adding and mixing auxiliary materials, vulcanizing and testing. The silicone rubber prepared by the invention has high structural strength, strong viscosity and good hydrophobic property, and can meet the use requirements.
Description
Technical Field
The invention relates to the technical field of silicone rubber materials, in particular to a silicone rubber material with good hydrophobicity and a preparation method thereof.
Background
The silicone rubber belongs to special synthetic rubber, is different from the C-C bond of common rubber, has an inorganic structure of Si-O as a main chain, and belongs to a semi-inorganic, saturated, miscellaneous-chain and nonpolar elastomer. The elastomer with the side group being an organic group has the characteristics of excellent high and low temperature resistance, weather aging resistance, electric insulation, physiological inertia and the like, is widely applied to the fields of electronic and electric appliances, aerospace, machinery manufacturing, medical health and the like, and also has wide application in daily life. The service temperature range of the common silicon rubber is-50-200 ℃. With the continuous development of science and technology, the application field of the silicon rubber is wider and wider, and higher requirements are also put forward on the hydrophobicity of the silicon rubber. On the whole, the traditional silicon rubber has low structural strength, poor viscosity and unsatisfactory hydrophobic effect, and the traditional silicon rubber cannot meet the use requirements and has certain limitation. Therefore, a silicone rubber material with good hydrophobicity and a preparation method thereof are provided.
Disclosure of Invention
The invention aims to provide a silicone rubber material with good hydrophobicity and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a silicone rubber material with good hydrophobicity comprises the following raw materials: methyl vinyl crude rubber, white carbon black, a vulcanizing agent, zinc stearate and modified silicone oil.
A preparation method of a silicone rubber material with good hydrophobicity is characterized by comprising the following steps: comprises the following steps;
the method comprises the following steps: preparing raw materials: methyl vinyl raw rubber and white carbon black are used as main raw materials, and zinc stearate, modified silicone oil and a vulcanizing agent are used as a mixing agent;
step two: adding and mixing auxiliary materials: adding raw materials of methyl vinyl raw rubber, white carbon black and zinc stearate according to a ratio to obtain a uniformly mixed material, stirring and mixing by using a tool, and then adding modified silicone oil into the mixture according to a ratio;
step three: and (3) vulcanization: adding a vulcanizing agent into the mixture obtained in the step two, and carrying out primary vulcanization and secondary vulcanization;
step four: and (3) testing: the method comprises the steps of testing hydrophobicity of the silicon rubber, testing volume resistivity and testing breakdown field strength.
Preferably, in the step one, 95-120 parts of methyl vinyl raw rubber, 25-55 parts of white carbon black, 5-12 parts of hydroxyl silicone oil, 0.1-2.5 parts of vulcanizing agent, 0-0.4 part of zinc stearate and 0-0.4 part of phenyl silicone oil are used according to parts by weight.
Preferably, in the step one, the methyl vinyl crude rubber comprises, by weight, 125 parts of methyl vinyl crude rubber, 30-50 parts of white carbon black, 7-10 parts of hydroxyl silicone oil, 0.5-2.1 parts of vulcanizing agent, 0-0.3 part of zinc stearate and 0-0.3 part of phenyl silicone oil.
Preferably, the conditions adopted in the primary vulcanization in the step three are 140-; the secondary vulcanization adopts the conditions of 190 ℃ and 230 ℃ for 3.8-4.2 h.
Preferably, the vulcanizing agent is 2, 4-dichlorobenzoyl peroxide.
Compared with the prior art, the invention has the beneficial effects that: according to the silicone rubber material with good hydrophobicity and the preparation method thereof, the silicone rubber is prepared by selecting the methyl vinyl raw rubber, the white carbon black, the vulcanizing agent, the zinc stearate and the modified silicone oil, and the formed silicone rubber has high viscosity and hydrophobicity, is stable in structure and excellent in performance, and can meet the use requirements in various environments.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
taking methyl vinyl raw rubber and white carbon black as main raw materials, taking zinc stearate, modified silicone oil and vulcanizing agent as mixing agents, adding 95-120 parts of methyl vinyl raw rubber, 25-55 parts of white carbon black, 0.1-2.5 parts of vulcanizing agent, 0-0.4 part of zinc stearate and the like according to a proportion to obtain a uniformly mixed material, stirring and mixing by using a tool, adding the modified silicone oil into the mixture according to a proportion, adding the vulcanizing agent into the mixture, carrying out primary vulcanization and secondary vulcanization, wherein the conditions adopted by the primary vulcanization are 140-155 ℃ and 10-15 min; the secondary vulcanization adopts the conditions of 190 ℃ and 230 ℃ for 3.8-4.2h, and then the secondary vulcanization is carried out by carrying out hydrophobicity test, volume resistivity test and breakdown field strength test on the silicon rubber.
Example two:
taking methyl vinyl crude rubber and white carbon black as main raw materials, taking zinc stearate, modified silicone oil and vulcanizing agent as mixing agents, adding raw materials such as 100 portions of methyl vinyl crude rubber, 30-50 portions of white carbon black, 0.5-2.1 portions of vulcanizing agent, 0-0.3 portion of zinc stearate and the like according to a proportion to obtain a uniformly mixed material, stirring and mixing by using a tool, adding the modified silicone oil into the mixture according to a proportion, adding the vulcanizing agent into the mixture, carrying out primary vulcanization and secondary vulcanization, wherein the conditions adopted by the primary vulcanization are 145-155 ℃ and 9-13 min; the secondary vulcanization adopts conditions of 185-225 ℃ and 3.5-4.5h, and then the secondary vulcanization is carried out with a silicon rubber hydrophobicity test, a volume resistivity test and a breakdown field strength test.
Example three:
taking methyl vinyl raw rubber and white carbon black as main raw materials, taking zinc stearate, modified silicone oil and vulcanizing agent as mixing agents, adding 95-120 parts of methyl vinyl raw rubber, 25-55 parts of white carbon black, 0.1-2.5 parts of vulcanizing agent, 0-0.4 part of zinc stearate and the like according to a proportion to obtain a uniformly mixed material, stirring and mixing by using a tool, adding the modified silicone oil into the mixture according to a proportion, adding the vulcanizing agent into the mixture, carrying out primary vulcanization and secondary vulcanization, wherein the conditions adopted by the primary vulcanization are 140-155 ℃ and 10-15 min; the secondary vulcanization adopts the conditions of 190 ℃ and 230 ℃ for 3.8-4.2h, and then the secondary vulcanization is carried out by carrying out hydrophobicity test, volume resistivity test and breakdown field strength test on the silicon rubber.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A silicone rubber material with good hydrophobicity comprises the following raw materials: methyl vinyl crude rubber, white carbon black, a vulcanizing agent, zinc stearate and modified silicone oil.
2. A preparation method of a silicone rubber material with good hydrophobicity is characterized by comprising the following steps: comprises the following steps;
the method comprises the following steps: preparing raw materials: methyl vinyl raw rubber and white carbon black are used as main raw materials, and zinc stearate, modified silicone oil and a vulcanizing agent are used as a mixing agent;
step two: adding and mixing auxiliary materials: adding raw materials of methyl vinyl raw rubber, white carbon black and zinc stearate according to a ratio to obtain a uniformly mixed material, stirring and mixing by using a tool, and then adding modified silicone oil into the mixture according to a ratio;
step three: and (3) vulcanization: adding a vulcanizing agent into the mixture obtained in the step two, and carrying out primary vulcanization and secondary vulcanization;
step four: and (3) testing: the method comprises the steps of testing hydrophobicity of the silicon rubber, testing volume resistivity and testing breakdown field strength.
3. The method for preparing a silicone rubber material with good hydrophobicity according to claim 2, wherein: according to the parts by weight, 95-120 parts of methyl vinyl raw rubber, 25-55 parts of white carbon black, 5-12 parts of hydroxyl silicone oil, 0.1-2.5 parts of vulcanizing agent, 0-0.4 part of zinc stearate and 0-0.4 part of phenyl silicone oil in the step one.
4. The method for preparing a silicone rubber material with good hydrophobicity according to claim 2, wherein: according to the parts by weight, in the step one, 100 parts of methyl vinyl crude rubber, 125 parts of white carbon black, 30-50 parts of hydroxyl silicone oil, 0.5-2.1 parts of vulcanizing agent, 0-0.3 part of zinc stearate and 0-0.3 part of epoxy modified silicone oil.
5. The method for preparing a silicone rubber material with good hydrophobicity according to claim 2, wherein: the conditions adopted by the primary vulcanization in the step three are 140-155 ℃ and 10-15 min; the secondary vulcanization adopts the conditions of 190 ℃ and 230 ℃ for 3.8-4.2 h.
6. The silicone rubber material with good hydrophobicity as claimed in claim 1, wherein: the vulcanizing agent is 2, 4-dichlorobenzoyl peroxide.
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| CN202011410965.XA CN112679957A (en) | 2020-12-03 | 2020-12-03 | Silicone rubber material with good hydrophobicity and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031945A (en) * | 2021-12-08 | 2022-02-11 | 哈尔滨理工大学 | Silicone rubber material with good hydrophobicity and flame retardance and preparation method thereof |
| CN114806183A (en) * | 2022-03-17 | 2022-07-29 | 哈尔滨理工大学 | Silicon rubber material with electrochromic property and preparation method thereof |
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2020
- 2020-12-03 CN CN202011410965.XA patent/CN112679957A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031945A (en) * | 2021-12-08 | 2022-02-11 | 哈尔滨理工大学 | Silicone rubber material with good hydrophobicity and flame retardance and preparation method thereof |
| CN114806183A (en) * | 2022-03-17 | 2022-07-29 | 哈尔滨理工大学 | Silicon rubber material with electrochromic property and preparation method thereof |
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