CN104046039A - Heat-resistant silicone rubber and preparation method thereof - Google Patents
Heat-resistant silicone rubber and preparation method thereof Download PDFInfo
- Publication number
- CN104046039A CN104046039A CN201410300327.0A CN201410300327A CN104046039A CN 104046039 A CN104046039 A CN 104046039A CN 201410300327 A CN201410300327 A CN 201410300327A CN 104046039 A CN104046039 A CN 104046039A
- Authority
- CN
- China
- Prior art keywords
- parts
- heat
- silicone rubber
- methyl vinyl
- silicon rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Silicon Polymers (AREA)
Abstract
The invention provides heat-resistant silicone rubber. The heat-resistant silicone rubber consists of the following components in parts by mass: 100 parts of raw methyl vinyl silicone rubber, 80-85 parts of poly-metal organosiloxane, 22-28 parts of alkoxy-terminated polysiloxane, 18-22 parts of gas-phase white carbon black, 8-12 parts of methyl silicone oil, 6-8 parts of quartz powder, 2-3 parts of boric acid and 1-2 parts of barium silicate, wherein the raw methyl vinyl silicone rubber comprises 62+/-2 parts of the raw methyl vinyl silicone rubber of which the vinyl content is 0.07-0.09% and 38+/-2 parts of the raw methyl vinyl silicone rubber of which the vinyl content is 0.15-0.17%, and the number-average molecular weight of the raw methyl vinyl silicone rubber of which the vinyl content is 0.07-0.09% and the raw methyl vinyl silicone rubber of which the vinyl content is 0.15-0.17% is between 580000 and 600000. For the purpose, the invention also provides a preparation method of the heat-resistant silicone rubber. By virtue of experiments, the silicone rubber provided by the invention can be used for a long time in the environment at 360-370 DEG C, can reach a tearing strength of more than 32.1KN/m, and has excellent heat-resistant properties.
Description
Technical field
The invention belongs to material technology field, be specifically related to a kind of heat-resistant silicon rubber.
Background technology
Silicon rubber is to carry out copolymerization and the elastocopolymer that makes by cyclic organic siloxane ring-opening polymerization or with different silicones. in long-term operational process, high temperature will impel silicon rubber aging.In the time that surrounding temperature raises, silicon rubber molecular chain constantly obtains energy, in the time that temperature reaches its glutinous stream temperature, so that the free movement of whole piece molecular chain becomes mobile mucus.Now, silicon rubber becomes viscous state from elastomeric state, and mechanical property and insulating property are lost.Modern industry has proposed requirements at the higher level to the thermotolerance of silicon rubber, as high to 300 DEG C or higher to silicon rubber heat-resisting air aging temperature in automotive hose, electronic seal, electric wire, gold stamping printing silicon rubber hot pressing rubber roll offset plate, low-temperature alloy mould, refractory seals part etc. field, therefore the resistance to elevated temperatures that, further improves silicon rubber has very large meaning.Therefore need a kind of new silicon rubber to improve to some extent aspect thermotolerance.
Summary of the invention
In order to solve problems of the prior art, the invention provides a kind of heat-resistant silicon rubber; For this reason, the present invention also provides the preparation method of this heat-resistant silicon rubber.
In order to realize foregoing invention object, technical scheme provided by the invention is as follows:
A kind of heat-resistant silicon rubber, described heat-resistant silicon rubber is made up of each component of following mass fraction: 100 parts of methyl vinyl silicon kautschuks, polyorganometallosiloxane 80-85 part, alkoxy end-capped polysiloxane 22-28 part, gas-phase silica 18-22 part, methyl-silicone oil 8-12 part, silica powder 6-8 part, boric acid 2-3 part, barium silicate 1-2 part;
Wherein, methyl vinyl silicon kautschuk comprises that 38 ± 2 parts of the methyl vinyl silicon kautschuks of 62 ± 2 parts of contents of ethylene 0.07%-0.09% methyl vinyl silicon kautschuks, contents of ethylene 0.15-0.17% and the number-average molecular weight of the two are between 58-60 ten thousand.
Preferably, the metallic element of described polyorganometallosiloxane is iron or copper, and described polyorganometallosiloxane is pressed powder.
Preferably, described polyorganometallosiloxane granularity is 900-1000 order.
Preferably, described alkoxy end-capped polysiloxane molecule formula is ROSi (CH
3)
2(OSi (CH
3)
2)
nr, wherein n=8-15, R is CH
3, C
2h
5, C
6h
5in one.
Preferably, described gas-phase silica is that silanization is processed hydrophobic type gas-phase silica.
The present invention also provides the preparation method of above-mentioned heat-resistant silicon rubber, is each component is added to banburying in vacuum Banbury mixer in proportion, after banburying finishes and get final product.
Through test, silicon rubber of the present invention can use for a long time under the environment of 360-370 DEG C, more than tear strength reaches 32.1KN/m, has good resistance toheat.
Embodiment
Following embodiment is convenient to understand better the present invention, but does not limit the present invention.Experimental technique in following embodiment, if no special instructions, is ordinary method.
embodiment 1
The formula of a kind of heat-resistant silicon rubber of the present invention is as follows:
Methyl vinyl silicon kautschuk 100kg, polyorganometallosiloxane pressed powder (granularity 900 orders) 82kg, alkoxy end-capped polysiloxane 25kg, silanization are processed hydrophobic type gas-phase silica 20kg, methyl-silicone oil 10kg, silica powder 7kg, boric acid 2.5kg, barium silicate 1.5kg.
Wherein, described methyl vinyl silicon kautschuk, comprises that 38 parts of the methyl vinyl silicon kautschuks of 62 parts of contents of ethylene 0.07% methyl vinyl silicon kautschuks, contents of ethylene 0.16% and the number-average molecular weight of the two are between 58-60 ten thousand.
The metallic element of polyorganometallosiloxane is iron.
Alkoxy end-capped polysiloxane molecule formula is ROSi (CH
3)
2(OSi (CH
3)
2)
10r, R is C
2h
5.
Above-mentioned each component is added to banburying in vacuum Banbury mixer, 162 DEG C of temperature, vacuum tightness is-0.05MPa to make heat-resistant silicon rubber of the present invention after banburying finishes.
Silicon rubber prepared by the present embodiment can use for a long time under the environment of 360 DEG C, and tear strength reaches 32.8KN/m.
embodiment 2
The formula of a kind of heat-resistant silicon rubber of the present invention is as follows:
Methyl vinyl silicon kautschuk 100kg, polyorganometallosiloxane pressed powder (granularity 900 orders) 80kg, alkoxy end-capped polysiloxane 28kg, silanization are processed hydrophobic type gas-phase silica 18kg, methyl-silicone oil 8kg, silica powder 8kg, boric acid 2kg, barium silicate 1kg.
Wherein, methyl vinyl silicon kautschuk comprises that 36 parts of the methyl vinyl silicon kautschuks of 64 parts of contents of ethylene 0.09% methyl vinyl silicon kautschuks, contents of ethylene 0.15% and the number-average molecular weight of the two are between 58-60 ten thousand.
The metallic element of polyorganometallosiloxane is copper.
Alkoxy end-capped polysiloxane molecule formula is ROSi (CH
3)
2(OSi (CH
3)
2)
15r, R is C
6h
5.
Above-mentioned each component is added to banburying in vacuum Banbury mixer, 160 DEG C of temperature, vacuum tightness is-0.05MPa to make heat-resistant silicon rubber of the present invention after banburying finishes.
Silicon rubber prepared by the present embodiment can use for a long time under the environment of 365 DEG C, and tear strength reaches 32.3KN/m.
embodiment 3
The formula of a kind of heat-resistant silicon rubber of the present invention is as follows:
Methyl vinyl silicon kautschuk 100kg, polyorganometallosiloxane pressed powder (granularity 1000 orders) 85kg, alkoxy end-capped polysiloxane 22kg, silanization are processed hydrophobic type gas-phase silica 22kg, methyl-silicone oil 12kg, silica powder 6kg, boric acid 3kg, barium silicate 2kg.
Wherein, methyl vinyl silicon kautschuk comprises that 40 parts of the methyl vinyl silicon kautschuks of 60 parts of contents of ethylene 0.08% methyl vinyl silicon kautschuks, contents of ethylene 0.15% and the number-average molecular weight of the two are between 58-60 ten thousand.
The metallic element of polyorganometallosiloxane is copper.
Alkoxy end-capped polysiloxane molecule formula is ROSi (CH
3)
2(OSi (CH
3)
2)
8r, R is CH
3.
Above-mentioned each component is added to banburying in vacuum Banbury mixer, 170 DEG C of temperature, vacuum tightness is-0.07MPa to make heat-resistant silicon rubber of the present invention after banburying finishes.
Silicon rubber prepared by the present embodiment can use for a long time under the environment of 370 DEG C, and tear strength reaches 32.1KN/m.
embodiment 4
The formula of a kind of heat-resistant silicon rubber of the present invention is as follows:
Methyl vinyl silicon kautschuk 100kg, polyorganometallosiloxane pressed powder (granularity 950 orders) 82kg, alkoxy end-capped polysiloxane 22kg, silanization are processed hydrophobic type gas-phase silica 18kg, methyl-silicone oil 10kg, silica powder 7kg, boric acid 2kg, barium silicate 1kg.
Wherein, methyl vinyl silicon kautschuk comprises that 38 parts of the methyl vinyl silicon kautschuks of 62 parts of contents of ethylene 0.07% methyl vinyl silicon kautschuks, contents of ethylene 0.17% and the number-average molecular weight of the two are between 58-60 ten thousand.
The metallic element of polyorganometallosiloxane is copper.
Alkoxy end-capped polysiloxane molecule formula is ROSi (CH
3)
2(OSi (CH
3)
2)
8r, R is C
6h
5.
Above-mentioned each component is added to banburying in vacuum Banbury mixer, 165 DEG C of temperature, vacuum tightness is-0.06MPa to make heat-resistant silicon rubber of the present invention after banburying finishes.
Silicon rubber prepared by the present embodiment can use for a long time under the environment of 365 DEG C, and tear strength reaches 32.7KN/m.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a heat-resistant silicon rubber, is characterized in that: described heat-resistant silicon rubber is made up of each component of following mass fraction: 100 parts of methyl vinyl silicon kautschuks, polyorganometallosiloxane 80-85 part, alkoxy end-capped polysiloxane 22-28 part, gas-phase silica 18-22 part, methyl-silicone oil 8-12 part, silica powder 6-8 part, boric acid 2-3 part, barium silicate 1-2 part;
Wherein, described methyl vinyl silicon kautschuk comprises that 38 ± 2 parts of the methyl vinyl silicon kautschuks of 62 ± 2 parts of contents of ethylene 0.07%-0.09% methyl vinyl silicon kautschuks, contents of ethylene 0.15-0.17% and the number-average molecular weight of the two are between 58-60 ten thousand.
2. heat-resistant silicon rubber according to claim 1, is characterized in that: the metallic element of described polyorganometallosiloxane is iron or copper, and described polyorganometallosiloxane is pressed powder.
3. heat-resistant silicon rubber according to claim 1, is characterized in that: described polyorganometallosiloxane granularity is 900-1000 order.
4. heat-resistant silicon rubber according to claim 1, is characterized in that: described alkoxy end-capped polysiloxane molecule formula is ROSi (CH
3)
2(OSi (CH
3)
2)
nr, wherein n=8-15, R is CH
3, C
2h
5, C
6h
5in one.
5. heat-resistant silicon rubber according to claim 1, is characterized in that: described gas-phase silica is that silanization is processed hydrophobic type gas-phase silica.
6. the preparation method of the arbitrary described heat-resistant silicon rubber of claim 1-5, is characterized in that: be that each component is added to banburying in vacuum Banbury mixer in proportion, after banburying finishes and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410300327.0A CN104046039A (en) | 2014-06-30 | 2014-06-30 | Heat-resistant silicone rubber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410300327.0A CN104046039A (en) | 2014-06-30 | 2014-06-30 | Heat-resistant silicone rubber and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104046039A true CN104046039A (en) | 2014-09-17 |
Family
ID=51499454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410300327.0A Pending CN104046039A (en) | 2014-06-30 | 2014-06-30 | Heat-resistant silicone rubber and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104046039A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327514A (en) * | 2014-10-08 | 2015-02-04 | 安徽奥丰汽车配件有限公司 | Mixing silicon rubber for low hardness rubber roller |
| CN106751900A (en) * | 2016-12-14 | 2017-05-31 | 东至绿洲环保化工有限公司 | A kind of silicon rubber of high temperature resistant oil resistant |
| CN106832944A (en) * | 2016-12-29 | 2017-06-13 | 沈阳化工大学 | A kind of heat-resistant silicon rubber |
| CN113131103A (en) * | 2021-04-08 | 2021-07-16 | 惠州市超聚电池有限公司 | Circular tab and button cell |
| CN113637327A (en) * | 2021-09-26 | 2021-11-12 | 深圳市思汇恒实业有限公司 | High-temperature-resistant silicon rubber sealing ring and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993590A (en) * | 2010-11-01 | 2011-03-30 | 深圳市森日有机硅材料有限公司 | Silicone rubber putty and preparation method thereof |
| CN102585514A (en) * | 2012-02-28 | 2012-07-18 | 上海旭创高分子材料有限公司 | Oil-resistant silicon rubber |
| CN103788655A (en) * | 2013-11-25 | 2014-05-14 | 山东永泰化工有限公司 | Silicon rubber |
-
2014
- 2014-06-30 CN CN201410300327.0A patent/CN104046039A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993590A (en) * | 2010-11-01 | 2011-03-30 | 深圳市森日有机硅材料有限公司 | Silicone rubber putty and preparation method thereof |
| CN102585514A (en) * | 2012-02-28 | 2012-07-18 | 上海旭创高分子材料有限公司 | Oil-resistant silicon rubber |
| CN103788655A (en) * | 2013-11-25 | 2014-05-14 | 山东永泰化工有限公司 | Silicon rubber |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327514A (en) * | 2014-10-08 | 2015-02-04 | 安徽奥丰汽车配件有限公司 | Mixing silicon rubber for low hardness rubber roller |
| CN106751900A (en) * | 2016-12-14 | 2017-05-31 | 东至绿洲环保化工有限公司 | A kind of silicon rubber of high temperature resistant oil resistant |
| CN106832944A (en) * | 2016-12-29 | 2017-06-13 | 沈阳化工大学 | A kind of heat-resistant silicon rubber |
| CN113131103A (en) * | 2021-04-08 | 2021-07-16 | 惠州市超聚电池有限公司 | Circular tab and button cell |
| CN113131103B (en) * | 2021-04-08 | 2022-09-16 | 惠州市超聚电池有限公司 | Circular tab and button cell |
| CN113637327A (en) * | 2021-09-26 | 2021-11-12 | 深圳市思汇恒实业有限公司 | High-temperature-resistant silicon rubber sealing ring and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104046039A (en) | Heat-resistant silicone rubber and preparation method thereof | |
| CN104046040A (en) | High-temperature resistant silicone rubber and preparation method thereof | |
| CN104761911B (en) | High temperature mixing silicone rubber as well as preparation method and application thereof | |
| CN104046041A (en) | High-temperature resistant silicone rubber and preparation method thereof | |
| CN101872678B (en) | Process of producing electrical product through pressure gelation of epoxy resin | |
| CN103756327A (en) | Heat-conducting silicone rubber electronic casting glue and preparation method and application thereof | |
| CN107353871A (en) | A kind of high temperature resistant adhering and sealing silicones and preparation method thereof | |
| CN101768363A (en) | Method for preparing addition highly heat-conducting room temperature-curing silicon rubber | |
| JP2010232535A (en) | Heat-resistant heat dissipation sheet | |
| CN101311238A (en) | Light-coloured high temperature resistant organic silicone adhesive/sealant | |
| CN103554924B (en) | Additional organosilicon damping material performed polymer, additional organosilicon damping material and preparation method thereof | |
| CN106751881A (en) | A kind of room temperature molded curing heat conduction electromagnetic-wave absorbing rubber material and preparation method thereof | |
| CN105001650A (en) | Silicon rubber internal release agent and preparation method thereof | |
| CN104419114B (en) | Resin composition for encapsulating semiconductor and with the composition hardening thing semiconductor device | |
| CN103642247A (en) | High-temperature-resistant electric-insulation silicon rubber | |
| CN106633901A (en) | Graphene-contained high-temperature-resistant condensation type room temperature vulcanized silicone rubber | |
| CN110408034B (en) | Synthetic method of phenyl block silicone resin | |
| CN103694707A (en) | High temperature-resistant silicone rubber additive | |
| CN105623592A (en) | Flexible insulation pouring sealant based on modified epoxy resin | |
| CN106800781A (en) | One kind is used（Tetraphenyl）Silicon rubber prepared by phenethyl POSS heat resistance accessories | |
| CN103788659A (en) | High-temperature-resisting silicone rubber | |
| CN104877109A (en) | Tetra-(3-ethynylaniline)-based silane-modified TGDDM/DDS (tetraglycidyl 4,4'-diaminodiphenyl methane/4,4'-diaminodiphenyl sulfone) system and preparation method thereof | |
| CN107459748A (en) | A kind of manufacture method of teflon gasket | |
| CN103613860A (en) | Preparation method of high temperature-resistant rubber | |
| CN108003630A (en) | A kind of power cable sheath is with being not easy hot cracking silicon rubber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140917 |
|
| RJ01 | Rejection of invention patent application after publication |