CN104004361A - High-performance methyl vinyl silicone rubber material - Google Patents
High-performance methyl vinyl silicone rubber material Download PDFInfo
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- CN104004361A CN104004361A CN201410191418.5A CN201410191418A CN104004361A CN 104004361 A CN104004361 A CN 104004361A CN 201410191418 A CN201410191418 A CN 201410191418A CN 104004361 A CN104004361 A CN 104004361A
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Abstract
The invention discloses a high-performance methyl vinyl silicone rubber material. 60-80 parts of raw methyl vinyl rubber, 20-30 parts of aluminum hydroxide, 1-3 parts of methyl silicone oil, 1-2 parts of dimethicone and 0.1-0.4 parts of a demolding assistant are added with diethyldiethoxysilane and vinyltriethoxysilane and the mixture is blended, wherein based on the weight of the raw methyl vinyl rubber, a diethyldiethoxysilane use ratio is in a range of 0.3-1.2wt% and a vinyltriethoxysilane use ratio is in a range of 0.8-1.5wt%, the mixture is added with 8-13 parts of modified titanium dioxide, nanocellulose whisker and silica micro-powder and the mixture is blended, wherein a weight ratio of the modified titanium dioxide, nanocellulose whisker to silica micro-powder is 15-20: 2-3: 3-4, and the mixture is added with WPH white carbon black and modified white carbon black so that the high-performance methyl vinyl silicone rubber material is obtained, wherein based on the weight of the raw methyl vinyl rubber, a WPH white carbon black use ratio is in a range of 5-13wt% and a modified white carbon black use ratio is in a range of 20-40wt%. Compared with the original silicone rubber, the high-performance methyl vinyl silicone rubber material improves density and tensile strength, has good flame retardation, excellent wear resistance and tear resistance, and improves silica gel safety.
Description
Technical field
The present invention relates to methyl vinyl silicone rubber technical field, relate in particular to a kind of high-performance methyl vinyl silicone rubber material.
Background technology
Silicon rubber refers to that molecular backbone chain is Si-O inorganic structure, the class elastomerics that side chain is organic group.Silicon rubber belongs to half inorganic saturated, heterochain, nonpolar elastic body.At present, silicon rubber has a wide range of applications at building, chemical industry, communications and transportation, electronic apparatus, biomaterial and aerospace material everyway, it has good heat-resisting, low temperature resistant, insulativity, antidetonation, resistance to compression, resistance to abrasion and good biological nature, but the tensile strength of silicon rubber is low, anti tear, energy is wear-resisting, flame retardant properties is poor, has influence on use range and the function of silicon rubber.
Summary of the invention
The technical problem that basic background technology exists, the present invention proposes a kind of high-performance methyl vinyl silicone rubber material, improves density and tensile strength, also possesses good flame retardant properties and excellent wear-resisting, tear resistance, has strengthened the safety performance of silica gel.
A kind of high-performance methyl vinyl silicone rubber material that the present invention proposes, comprise: by 60-80 part Methyl-ethylenvinyl gum, 20-30 part aluminium hydroxide, 1-3 part methyl-silicone oil, 1-2 part dimethyl silicone oil, the agent of 0.1-0.4 part assisted ejection, the Methyl-ethylenvinyl gum of take drops in vacuum kneader mixing as benchmark 0.8-1.5wt% vinyltriethoxysilane as benchmark 0.3-1.2wt% diethyl diethoxy silane and the Methyl-ethylenvinyl gum of take, melting temperature is 70-78 ℃, mixing time is 2-5min, mixing negative pressure is 0.4-0.8MPa, rotating speed is 35-45rpm, treat that temperature rises to 88-95 ℃ and adds 8-13 part modified titanium, nano-cellulose whisker and silicon powder continue mixing 12-15min and obtain Preblend, Methyl-ethylenvinyl gum wherein, the weight ratio of nano-cellulose whisker and silicon powder is 15-20:2-3:3-4, then the Methyl-ethylenvinyl gum of take takes 5-13wt%WPH white carbon black and 20-40wt% modified white carbon black as benchmark, to add in the Preblend in above-mentioned vacuum kneader take WPH white carbon black total amount as benchmark 40-70wt%WPH white carbon black with take modified white carbon black total amount and continue to stir as benchmark 50-60wt% modified white carbon black, vacuum kneader rotating speed is 35-45rpm, while being warming up to 120-130 ℃ with 15-20 ℃/h heat-up rate after all materials are agglomerating, add take WPH white carbon black total amount as benchmark 10-25wt%WPH white carbon black with take modified white carbon black total amount and be warming up to 145-150 ℃ as benchmark 20-30wt% modified white carbon black and with 10-15 ℃/h heat-up rate, add remaining WPH white carbon black and modified white carbon black to continue to be warming up to 165-175 ℃, to maintain negative pressure be 0.1-0.5MPa and be incubated 1-3h, be cooled to 75-80 ℃ and obtain high-performance methyl vinyl silicone rubber material.
Preferably, WPH white carbon black specific surface area is 550-630m
2/ g, particle diameter is 55-85mm.
Preferably, modified white carbon black is the white carbon black of surface after surface-modifying agent is processed, and described surface-modifying agent is comprised of one or more of tri-methyl-chlorosilane, dimethyldichlorosilane(DMCS), straight chain lauryl alcohol, Union carbide A-162, methyltrimethoxy silane, hexamethyl cyclotrisiloxane, tetramethyl-tetrem thiazolinyl cyclotetrasiloxane, tetramethyl-tetrahydrochysene cyclotetrasiloxane.
Preferably, the particle diameter of silicon powder is 4-5 μ m.
Preferably, the titanium dioxide that modified titanium obtains through metal oxide treated for surface.
The present invention be take Methyl-ethylenvinyl gum as major ingredient, be aided with appropriate aluminium hydroxide and significantly improved flame retardant properties of the present invention, strengthened the safety performance of silica gel, coordinate and add modified titanium, nano-cellulose whisker and silicon powder are as packing strengthening agent, be filled between silica gel group molecule, improve of the present invention wear-resisting, tear resistance and tensile strength, by the mating reaction of diethyl diethoxy silane and vinyltriethoxysilane and above-mentioned raw materials, further promote the consistency between above-mentioned three kinds of packing strengthening agents and rubber, improve bond properties of the present invention, add again WPH white carbon black and modified white carbon black, make the surface wettability of silicon rubber, dispersiveness improves, significantly improve tensile strength of the present invention and elongation, further strengthen of the present invention wear-resisting, tear resistance and tensile strength, and the compound action of white carbon black and silicon powder, increase again density of the present invention, improve mobility of the present invention and row's bubble property.
Embodiment
A kind of high-performance methyl vinyl silicone rubber material that the present invention proposes, comprise: by 60-80 part Methyl-ethylenvinyl gum, 20-30 part aluminium hydroxide, 1-3 part methyl-silicone oil, 1-2 part dimethyl silicone oil, the agent of 0.1-0.4 part assisted ejection, the Methyl-ethylenvinyl gum of take drops in vacuum kneader mixing as benchmark 0.8-1.5wt% vinyltriethoxysilane as benchmark 0.3-1.2wt% diethyl diethoxy silane and the Methyl-ethylenvinyl gum of take, melting temperature is 70-78 ℃, mixing time is 2-5min, mixing negative pressure is 0.4-0.8MPa, rotating speed is 35-45rpm, treat that temperature rises to 88-95 ℃ and adds 8-13 part modified titanium, nano-cellulose whisker and silicon powder continue mixing 12-15min and obtain Preblend, Methyl-ethylenvinyl gum wherein, the weight ratio of nano-cellulose whisker and silicon powder is 15-20:2-3:3-4, then the Methyl-ethylenvinyl gum of take takes 5-13wt%WPH white carbon black and 20-40wt% modified white carbon black as benchmark, to add in the Preblend in above-mentioned vacuum kneader take WPH white carbon black total amount as benchmark 40-70wt%WPH white carbon black with take modified white carbon black total amount and continue to stir as benchmark 50-60wt% modified white carbon black, vacuum kneader rotating speed is 35-45rpm, while being warming up to 120-130 ℃ with 15-20 ℃/h heat-up rate after all materials are agglomerating, add take WPH white carbon black total amount as benchmark 10-25wt%WPH white carbon black with take modified white carbon black total amount and be warming up to 145-150 ℃ as benchmark 20-30wt% modified white carbon black and with 10-15 ℃/h heat-up rate, add remaining WPH white carbon black and modified white carbon black to continue to be warming up to 165-175 ℃, to maintain negative pressure be 0.1-0.5MPa and be incubated 1-3h, be cooled to 75-80 ℃ and obtain high-performance methyl vinyl silicone rubber material.
Below, by specific embodiment, technical scheme of the present invention is elaborated.
Embodiment 1
A kind of high-performance methyl vinyl silicone rubber material that the present invention proposes, comprise: by 60 parts of Methyl-ethylenvinyl gums, 30 parts of aluminium hydroxides, 1 part of methyl-silicone oil, 2 parts of dimethyl silicone oils, 0.1 part of assisted ejection agent, the Methyl-ethylenvinyl gum of take drops in vacuum kneader mixing as benchmark 0.8wt% vinyltriethoxysilane as benchmark 1.2wt% diethyl diethoxy silane and the Methyl-ethylenvinyl gum of take, melting temperature is 78 ℃, mixing time is 2min, mixing negative pressure is 0.8MPa, rotating speed is 35rpm, treat that temperature rises to 95 ℃ and adds 8 parts of modified titaniums, nano-cellulose whisker and silicon powder continue mixing 15min and obtain Preblend, Methyl-ethylenvinyl gum wherein, the weight ratio of nano-cellulose whisker and silicon powder is 5:1:1, then the Methyl-ethylenvinyl gum of take takes 13wt%WPH white carbon black and 20wt% modified white carbon black as benchmark, to add in the Preblend in above-mentioned vacuum kneader take WPH white carbon black total amount as benchmark 70wt%WPH white carbon black with take modified white carbon black total amount and continue to stir as benchmark 50wt% modified white carbon black, vacuum kneader rotating speed is 45rpm, while being warming up to 130 ℃ with 15 ℃/h heat-up rate after all materials are agglomerating, add take WPH white carbon black total amount as benchmark 10wt%WPH white carbon black with take modified white carbon black total amount and be warming up to 145 ℃ as benchmark 30wt% modified white carbon black and with 10 ℃/h heat-up rate, add remaining WPH white carbon black and modified white carbon black to continue to be warming up to 175 ℃, to maintain negative pressure be 0.1MPa and be incubated 3h, be cooled to 75 ℃ and obtain high-performance methyl vinyl silicone rubber material.
Embodiment 2
A kind of high-performance methyl vinyl silicone rubber material that the present invention proposes, comprise: by 80 parts of Methyl-ethylenvinyl gums, 20 parts of aluminium hydroxides, 3 parts of methyl-silicone oils, 1 part of dimethyl silicone oil, 0.4 part of assisted ejection agent, the Methyl-ethylenvinyl gum of take drops in vacuum kneader mixing as benchmark 1.5wt% vinyltriethoxysilane as benchmark 0.3wt% diethyl diethoxy silane and the Methyl-ethylenvinyl gum of take, melting temperature is 70 ℃, mixing time is 5min, mixing negative pressure is 0.4MPa, rotating speed is 45rpm, treat that temperature rises to 88 ℃ and adds 13 parts of modified titaniums, nano-cellulose whisker and silicon powder continue mixing 12min and obtain Preblend, Methyl-ethylenvinyl gum wherein, the weight ratio of nano-cellulose whisker and silicon powder is 80:8:16, then the Methyl-ethylenvinyl gum of take takes 5wt%WPH white carbon black and 40wt% modified white carbon black as benchmark, to add in the Preblend in above-mentioned vacuum kneader take WPH white carbon black total amount as benchmark 40wt%WPH white carbon black with take modified white carbon black total amount and continue to stir as benchmark 60wt% modified white carbon black, vacuum kneader rotating speed is 35rpm, while being warming up to 120 ℃ with 20 ℃/h heat-up rate after all materials are agglomerating, add take WPH white carbon black total amount as benchmark 25wt%WPH white carbon black with take modified white carbon black total amount and be warming up to 150 ℃ as benchmark 20wt% modified white carbon black and with 15 ℃/h heat-up rate, add remaining WPH white carbon black and modified white carbon black to continue to be warming up to 165 ℃, to maintain negative pressure be 0.5MPa and be incubated 1h, be cooled to 80 ℃ and obtain high-performance methyl vinyl silicone rubber material, modified white carbon black is the white carbon black of surface after surface-modifying agent is processed, described surface-modifying agent is comprised of tetramethyl-tetrem thiazolinyl cyclotetrasiloxane and tetramethyl-tetrahydrochysene cyclotetrasiloxane.
Embodiment 3
A kind of high-performance methyl vinyl silicone rubber material that the present invention proposes, comprise: by 63 parts of Methyl-ethylenvinyl gums, 27 parts of aluminium hydroxides, 2 parts of methyl-silicone oils, 1.5 parts of dimethyl silicone oils, 0.2 part of assisted ejection agent, the Methyl-ethylenvinyl gum of take drops in vacuum kneader mixing as benchmark 1t% vinyltriethoxysilane as benchmark 1.1wt% diethyl diethoxy silane and the Methyl-ethylenvinyl gum of take, melting temperature is 77 ℃, mixing time is 3min, mixing negative pressure is 0.6MPa, rotating speed is 37rpm, treat that temperature rises to 93 ℃ and adds 9 parts of modified titaniums, nano-cellulose whisker and silicon powder continue mixing 12min and obtain Preblend, Methyl-ethylenvinyl gum wherein, the weight ratio of nano-cellulose whisker and silicon powder is 77:10:13, then the Methyl-ethylenvinyl gum of take takes 12wt%WPH white carbon black and 22wt% modified white carbon black as benchmark, to add in the Preblend in above-mentioned vacuum kneader take WPH white carbon black total amount as benchmark 68wt%WPH white carbon black with take modified white carbon black total amount and continue to stir as benchmark 53wt% modified white carbon black, vacuum kneader rotating speed is 42rpm, while being warming up to 127 ℃ with 16 ℃/h heat-up rate after all materials are agglomerating, add take WPH white carbon black total amount as benchmark 11wt%WPH white carbon black with take modified white carbon black total amount and be warming up to 148 ℃ as benchmark 28wt% modified white carbon black and with 11 ℃/h heat-up rate, add remaining WPH white carbon black and modified white carbon black to continue to be warming up to 167 ℃, to maintain negative pressure be 0.4MPa and be incubated 1.2h, be cooled to 79 ℃ and obtain high-performance methyl vinyl silicone rubber material, wherein the particle diameter of silicon powder is 4 μ m, the titanium dioxide that modified titanium obtains through metal oxide treated for surface, WPH white carbon black specific surface area is 630m
2/ g, WPH white carbon black particle diameter is 55mm, and modified white carbon black is the white carbon black of surface after surface-modifying agent is processed, and described surface-modifying agent is comprised of tri-methyl-chlorosilane and dimethyldichlorosilane(DMCS).
Embodiment 4
A kind of high-performance methyl vinyl silicone rubber material that the present invention proposes, comprise: by 67 parts of Methyl-ethylenvinyl gums, 22 parts of aluminium hydroxides, 2 parts of methyl-silicone oils, 1.5 parts of dimethyl silicone oils, 0.3 part of assisted ejection agent, the Methyl-ethylenvinyl gum of take drops in vacuum kneader mixing as benchmark 1.4wt% vinyltriethoxysilane as benchmark 0.5wt% diethyl diethoxy silane and the Methyl-ethylenvinyl gum of take, melting temperature is 73 ℃, mixing time is 4min, mixing negative pressure is 0.5MPa, rotating speed is 43rpm, treat that temperature rises to 90 ℃ and adds 12 parts of modified titaniums, nano-cellulose whisker and silicon powder continue mixing 13min and obtain Preblend, Methyl-ethylenvinyl gum wherein, the weight ratio of nano-cellulose whisker and silicon powder is 67:11:15, then the Methyl-ethylenvinyl gum of take takes 7wt%WPH white carbon black and 37wt% modified white carbon black as benchmark, to add in the Preblend in above-mentioned vacuum kneader take WPH white carbon black total amount as benchmark 45wt%WPH white carbon black with take modified white carbon black total amount and continue to stir as benchmark 57wt% modified white carbon black, vacuum kneader rotating speed is 37rpm, while being warming up to 123 ℃ with 19 ℃/h heat-up rate after all materials are agglomerating, add take WPH white carbon black total amount as benchmark 23wt%WPH white carbon black with take modified white carbon black total amount and be warming up to 146 ℃ as benchmark 21wt% modified white carbon black and with 14 ℃/h heat-up rate, add remaining WPH white carbon black and modified white carbon black to continue to be warming up to 172 ℃, to maintain negative pressure be 0.2MPa and be incubated 2.1h, be cooled to 77 ℃ and obtain high-performance methyl vinyl silicone rubber material, wherein the particle diameter of silicon powder is 5 μ m, the titanium dioxide that modified titanium obtains through metal oxide treated for surface, WPH white carbon black specific surface area is 550m
2/ g, WPH white carbon black particle diameter is 85mm, and modified white carbon black is the white carbon black of surface after surface-modifying agent is processed, and described surface-modifying agent is comprised of straight chain lauryl alcohol, Union carbide A-162, methyltrimethoxy silane and hexamethyl cyclotrisiloxane.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (5)
1. a high-performance methyl vinyl silicone rubber material, it is characterized in that, comprise: by 60-80 part Methyl-ethylenvinyl gum, 20-30 part aluminium hydroxide, 1-3 part methyl-silicone oil, 1-2 part dimethyl silicone oil, the agent of 0.1-0.4 part assisted ejection, the Methyl-ethylenvinyl gum of take drops in vacuum kneader mixing as benchmark 0.8-1.5wt% vinyltriethoxysilane as benchmark 0.3-1.2wt% diethyl diethoxy silane and the Methyl-ethylenvinyl gum of take, melting temperature is 70-78 ℃, mixing time is 2-5min, mixing negative pressure is 0.4-0.8MPa, rotating speed is 35-45rpm, treat that temperature rises to 88-95 ℃ and adds 8-13 part modified titanium, nano-cellulose whisker and silicon powder continue mixing 12-15min and obtain Preblend, Methyl-ethylenvinyl gum wherein, the weight ratio of nano-cellulose whisker and silicon powder is 15-20:2-3:3-4, then the Methyl-ethylenvinyl gum of take takes 5-13wt%WPH white carbon black and 20-40wt% modified white carbon black as benchmark, to add in the Preblend in above-mentioned vacuum kneader take WPH white carbon black total amount as benchmark 40-70wt%WPH white carbon black with take modified white carbon black total amount and continue to stir as benchmark 50-60wt% modified white carbon black, vacuum kneader rotating speed is 35-45rpm, while being warming up to 120-130 ℃ with 15-20 ℃/h heat-up rate after all materials are agglomerating, add take WPH white carbon black total amount as benchmark 10-25wt%WPH white carbon black with take modified white carbon black total amount and be warming up to 145-150 ℃ as benchmark 20-30wt% modified white carbon black and with 10-15 ℃/h heat-up rate, add remaining WPH white carbon black and modified white carbon black to continue to be warming up to 165-175 ℃, to maintain negative pressure be 0.1-0.5MPa and be incubated 1-3h, be cooled to 75-80 ℃ and obtain high-performance methyl vinyl silicone rubber material.
2. high-performance methyl vinyl silicone rubber material according to claim 1, is characterized in that, WPH white carbon black specific surface area is 550-630m
2/ g, particle diameter is 55-85mm.
3. high-performance methyl vinyl silicone rubber material according to claim 1, it is characterized in that, modified white carbon black is the white carbon black of surface after surface-modifying agent is processed, and described surface-modifying agent is comprised of one or more of tri-methyl-chlorosilane, dimethyldichlorosilane(DMCS), straight chain lauryl alcohol, Union carbide A-162, methyltrimethoxy silane, hexamethyl cyclotrisiloxane, tetramethyl-tetrem thiazolinyl cyclotetrasiloxane, tetramethyl-tetrahydrochysene cyclotetrasiloxane.
4. high-performance methyl vinyl silicone rubber material according to claim 1, is characterized in that, the particle diameter of silicon powder is 4-5 μ m.
5. high-performance methyl vinyl silicone rubber material according to claim 1, is characterized in that, the titanium dioxide that modified titanium obtains through metal oxide treated for surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410191418.5A CN104004361A (en) | 2014-05-07 | 2014-05-07 | High-performance methyl vinyl silicone rubber material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410191418.5A CN104004361A (en) | 2014-05-07 | 2014-05-07 | High-performance methyl vinyl silicone rubber material |
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| CN104004361A true CN104004361A (en) | 2014-08-27 |
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| CN201410191418.5A Withdrawn CN104004361A (en) | 2014-05-07 | 2014-05-07 | High-performance methyl vinyl silicone rubber material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725865A (en) * | 2014-12-17 | 2015-06-24 | 苏州锦腾电子科技有限公司 | Wear-resistant and high-temperature resistant silicone rubber and preparation method thereof |
| CN105623175A (en) * | 2016-04-06 | 2016-06-01 | 苏州甫众塑胶有限公司 | Enhanced-type wear-resistant composite plastic material and preparation method thereof |
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| CN101538406A (en) * | 2009-04-17 | 2009-09-23 | 天惠有机硅(深圳)有限公司 | Formulation of silastic anti-yellowing vulcanizing agent 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 |
| CN103436033A (en) * | 2013-08-13 | 2013-12-11 | 天长市荣盛有机硅科技有限公司 | Novel silica gel and preparation method thereof |
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2014
- 2014-05-07 CN CN201410191418.5A patent/CN104004361A/en not_active Withdrawn
Patent Citations (3)
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| CN101538406A (en) * | 2009-04-17 | 2009-09-23 | 天惠有机硅(深圳)有限公司 | Formulation of silastic anti-yellowing vulcanizing agent 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 |
| CN103436033A (en) * | 2013-08-13 | 2013-12-11 | 天长市荣盛有机硅科技有限公司 | Novel silica gel and preparation method thereof |
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| 来国桥等: "《有机硅产品合成工艺及应用（第二版）》", 31 January 2010, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725865A (en) * | 2014-12-17 | 2015-06-24 | 苏州锦腾电子科技有限公司 | Wear-resistant and high-temperature resistant silicone rubber and preparation method thereof |
| CN105623175A (en) * | 2016-04-06 | 2016-06-01 | 苏州甫众塑胶有限公司 | Enhanced-type wear-resistant composite plastic material and preparation method thereof |
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