CN104046037A - Tear resistant aging resistant high strength wear resistant organic silicone rubber material - Google Patents
Tear resistant aging resistant high strength wear resistant organic silicone rubber material Download PDFInfo
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- CN104046037A CN104046037A CN201410188758.2A CN201410188758A CN104046037A CN 104046037 A CN104046037 A CN 104046037A CN 201410188758 A CN201410188758 A CN 201410188758A CN 104046037 A CN104046037 A CN 104046037A
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Abstract
The invention discloses a tear resistant aging resistant high strength wear resistant organic silicone rubber material which is prepared as follows: first, mixing 100 parts of methyl vinyl raw rubber, 35 to 40 parts of aluminum hydroxide, 1 to 3 parts of methyl silicone oil, 0.5 to 1 part of a mould release assistant agent with 0.5-1.2wt% of dimethyl vinyl ethoxy silane, 0.4-1wt% of diethyldiethoxysilane and 1-2.5wt% of vinyltriethoxysilane on the basis of taking the methyl vinyl raw rubber as a benchmark; then adding heavy calcium carbonate for mixing with 8-12wt% of nano cellulose whiskers on the basis of taking the methyl vinyl raw rubber as the benchmark; then adding white carbon black and 0.8 to 1.3 parts of epoxy alkyl siloxane oligomers into a vacuum kneader for stirring to obtain the tear resistant aging resistant high strength wear resistant organic silicone rubber material. Thee tear resistant aging resistant high strength wear resistant organic silicone rubber material has good fire resistance and excellent wear resistance, water resistance, aging resistance and tear resistance, and can enhance the safety performance of silica gel.
Description
Technical field
The present invention relates to silicon rubber technical field, relate in particular to a kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material.
Background technology
Silicon rubber is because use temperature scope is wide, have that as large in volume resistance, the resistance to disruptive strength of excellent electrical insulation properties is high and corona-resistance property good, there is the performances such as good water-fast, corrosion-resistant, radiation hardness, resistance to atmospheric aging simultaneously, its adhesive property is good, location, bonding, sealing and the cementation of fissures etc. that are widely used in components and parts in electronic product, electric installation, play insulation, dustproof, moistureproof, protection against corrosion and the effect such as shockproof.But how the demand that because silica gel product develops rapidly, it is torn, stretching and elongation can not meet current fast development gradually, prepare good physical performance, silica gel wear-resisting, tear-resistant, that flame retardant properties is good becomes technical problem urgently to be resolved hurrily at present.
Summary of the invention
The technical problem that basic background technology exists, the present invention proposes a kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material, possesses good flame retardant properties and excellent wear-resisting, water-fast, anti-aging and tear resistance, has strengthened the safety performance of silica gel.
A kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material that the present invention proposes, first by 100 parts of Methyl-ethylenvinyl gums, 35-40 part aluminium hydroxide, 1-3 part methyl-silicone oil, 0.5-1 part assisted ejection agent and take Methyl-ethylenvinyl gum as benchmark 0.5-1.2wt% Vinyldimethylethoxysilane, 0.4-1wt% diethyl diethoxy silane, 1-2.5wt% vinyltriethoxysilane drops in vacuum kneader mixing, melting temperature is 80-85 ℃, mixing time is 3-5min, mixing negative pressure is 0.5-0.9mpa, rotating speed is 35-45rpm, treat that temperature rises to 92-95 ℃ and adds water-ground limestone and take Methyl-ethylenvinyl gum and obtain material A as benchmark 8-12wt% nano-cellulose whisker continues mixing 10-12min, the weight ratio of water-ground limestone and nanofiber whisker is 4-5:2-3, then to adding in material A white carbon black and 0.8-1.3 part epoxy alkyl siloxane oligomer to drop in vacuum kneader, stir, wherein the weight ratio of Methyl-ethylenvinyl gum and white carbon black is 10:4-5, vacuum kneader rotating speed is 35-45rpm, after all materials are agglomerating, with 18-24 ℃/h heat-up rate, be warmed up to 160-180 ℃ of insulation, during insulation, negative pressure is 0.15-0.4Mpa, soaking time is 1-3h, be cooled to 75-85 ℃ and obtain a kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material, cooling rate is 25-30 ℃/h.
Preferably, the particle diameter of described water-ground limestone is 1-5 μ m.
Preferably, the weight ratio of Methyl-ethylenvinyl gum, precipitated silica and nano-cellulose whisker is 10:5:1.
Preferably, the weight ratio of Methyl-ethylenvinyl gum, Vinyldimethylethoxysilane, diethyl diethoxy silane and vinyltriethoxysilane is 100:1-1.2:0.5-0.8:1.5-2.
Preferably, melting temperature is 82 ℃, and mixing time is 4min, and mixing negative pressure is 0.8mpa, and rotating speed is 40rpm, treats that temperature rises to 92 ℃ and adds nano-cellulose whisker, water-ground limestone to continue mixing 10min to obtain material A.
Preferably, after all materials are agglomerating, with 20-22 ℃/h heat-up rate, be warmed up to 165-170 ℃, negative pressure is 0.2-0.3Mpa, and the time is 1-3h, be cooled to 78-82 ℃ and obtain a kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material, cooling rate is 30 ℃/h.
It is major ingredient that the present invention adopts Methyl-ethylenvinyl gum, be aided with aluminium hydroxide and significantly improved flame retardant properties of the present invention, strengthened the safety performance of silica gel, coordinate and add Vinyldimethylethoxysilane, diethyl diethoxy silane, vinyltriethoxysilane, promote water-ground limestone, precipitated silica, dispersiveness and the bounding force of nano-cellulose whisker in Methyl-ethylenvinyl gum, improve the consistency between above-mentioned three kinds of fillers and rubber, improve bond properties of the present invention, and water-ground limestone wherein, precipitated silica, nano-cellulose whisker is combined use, be filled between silica gel group molecule, significantly improve physical strength of the present invention, wear-resisting, water-fast, anti-aging and tear resistance.
Embodiment
A kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material that the present invention proposes, first by 100 parts of Methyl-ethylenvinyl gums, 35-40 part aluminium hydroxide, 1-3 part methyl-silicone oil, 0.5-1 part assisted ejection agent and take Methyl-ethylenvinyl gum as benchmark 0.5-1.2wt% Vinyldimethylethoxysilane, 0.4-1wt% diethyl diethoxy silane, 1-2.5wt% vinyltriethoxysilane drops in vacuum kneader mixing, melting temperature is 80-85 ℃, mixing time is 3-5min, mixing negative pressure is 0.5-0.9mpa, rotating speed is 35-45rpm, treat that temperature rises to 92-95 ℃ and adds water-ground limestone and take Methyl-ethylenvinyl gum and obtain material A as benchmark 8-12wt% nano-cellulose whisker continues mixing 10-12min, the weight ratio of water-ground limestone and nanofiber whisker is 4-5:2-3, then to adding in material A white carbon black and 0.8-1.3 part epoxy alkyl siloxane oligomer to drop in vacuum kneader, stir, wherein the weight ratio of Methyl-ethylenvinyl gum and white carbon black is 100:40-50, vacuum kneader rotating speed is 35-45rpm, after all materials are agglomerating, with 18-24 ℃/h heat-up rate, be warmed up to 160-180 ℃ of insulation, during insulation, negative pressure is 0.15-0.4Mpa, soaking time is 1-3h, be cooled to 75-85 ℃ and obtain a kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material, cooling rate is 25-30 ℃/h.
Below, by specific embodiment, technical scheme of the present invention is elaborated.
Embodiment 1
A kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material that the present invention proposes, first by 100 parts of Methyl-ethylenvinyl gums, 35 parts of aluminium hydroxides, 3 parts of methyl-silicone oils, 0.5 part of assisted ejection agent and take Methyl-ethylenvinyl gum as benchmark 1.2wt% Vinyldimethylethoxysilane, 0.4wt% diethyl diethoxy silane, 2.5wt% vinyltriethoxysilane drops in vacuum kneader mixing, melting temperature is 80 ℃, mixing time is 5min, mixing negative pressure is 0.5mpa, rotating speed is 45rpm, treat that temperature rises to 92 ℃ and adds water-ground limestone and take Methyl-ethylenvinyl gum and obtain material A as 12 parts of nano-cellulose whiskers of benchmark continue mixing 10min, the weight ratio of water-ground limestone and nanofiber whisker is 5:2, then to adding in material A white carbon black and 1.3 parts of epoxy alkyl siloxane oligomers to drop in vacuum kneaders, stir, wherein the weight ratio of Methyl-ethylenvinyl gum and white carbon black is 5:2, vacuum kneader rotating speed is 45rpm, after all materials are agglomerating, with 18 ℃/h heat-up rate, be warmed up to 180 ℃ of insulations, during insulation, negative pressure is 0.15Mpa, soaking time is 3h, is cooled to 75 ℃ and obtains a kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material, and cooling rate is 30 ℃/h.
Embodiment 2
A kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material that the present invention proposes, first by 100 parts of Methyl-ethylenvinyl gums, 40 parts of aluminium hydroxides, 1 part of methyl-silicone oil, 1 part of assisted ejection agent and take Methyl-ethylenvinyl gum as benchmark 0.5wt% Vinyldimethylethoxysilane, 1wt% diethyl diethoxy silane, 1wt% vinyltriethoxysilane drops in vacuum kneader mixing, melting temperature is 85 ℃, mixing time is 3min, mixing negative pressure is 0.9mpa, rotating speed is 35rpm, treat that temperature rises to 95 ℃ and adds water-ground limestone and take Methyl-ethylenvinyl gum and obtain material A as 8 parts of nano-cellulose whiskers of benchmark continue mixing 12min, the weight ratio of water-ground limestone and nanofiber whisker is 4:3, then to adding in material A white carbon black and 0.8 part of epoxy alkyl siloxane oligomer to drop in vacuum kneader, stir, wherein the weight ratio of Methyl-ethylenvinyl gum and white carbon black is 2:1, vacuum kneader rotating speed is 35rpm, after all materials are agglomerating, with 24 ℃/h heat-up rate, be warmed up to 160 ℃ of insulations, during insulation, negative pressure is 0.4Mpa, soaking time is 1h, is cooled to 85 ℃ and obtains a kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material, and cooling rate is 25 ℃/h.
Embodiment 3
A kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material that the present invention proposes, first by 100 parts of Methyl-ethylenvinyl gums, 38 parts of aluminium hydroxides, 2 parts of methyl-silicone oils, 0.6 part of assisted ejection agent and take Methyl-ethylenvinyl gum as benchmark 1wt% Vinyldimethylethoxysilane, 0.8wt% diethyl diethoxy silane, 1.5wt% vinyltriethoxysilane drops in vacuum kneader mixing, melting temperature is 82 ℃, mixing time is 4min, mixing negative pressure is 0.8mpa, rotating speed is 40rpm, treat that temperature rises to 92 ℃ and adds and take Methyl-ethylenvinyl gum as benchmark 10wt% nano-cellulose whisker, water-ground limestone continues mixing 10min and obtains material A, the weight ratio of water-ground limestone and nanofiber whisker is 17:11, then to adding in material A white carbon black and 0.9 part of epoxy alkyl siloxane oligomer to drop in vacuum kneader, stir, wherein the weight ratio of Methyl-ethylenvinyl gum and white carbon black is 10:3, vacuum kneader rotating speed is 42rpm, after all materials are agglomerating, with 20 ℃/h heat-up rate, be warmed up to 170 ℃, negative pressure is 0.2Mpa, time is 1h, is cooled to 78 ℃ and obtains a kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material, and cooling rate is 30 ℃/h.
Embodiment 4
A kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material that the present invention proposes, first by 100 parts of Methyl-ethylenvinyl gums, 36 parts of aluminium hydroxides, 2 parts of methyl-silicone oils, 0.9 part of assisted ejection agent and take Methyl-ethylenvinyl gum as benchmark 1wt% Vinyldimethylethoxysilane, 0.5wt% diethyl diethoxy silane, 2wt% vinyltriethoxysilane drops in vacuum kneader mixing, melting temperature is 82 ℃, mixing time is 4min, mixing negative pressure is 0.8mpa, rotating speed is 40rpm, treat that temperature rises to 92 ℃ and adds and take Methyl-ethylenvinyl gum as benchmark 10wt% nano-cellulose whisker, water-ground limestone continues mixing 10min and obtains material A, the weight ratio of water-ground limestone and nanofiber whisker is 19:9, then to adding in material A white carbon black and 1.1 parts of epoxy alkyl siloxane oligomers to drop in vacuum kneaders, stir, wherein the weight ratio of Methyl-ethylenvinyl gum and white carbon black is 2:1, vacuum kneader rotating speed is 38rpm, after all materials are agglomerating, with 22 ℃/h heat-up rate, be warmed up to 165 ℃, negative pressure is 0.3Mpa, time is 3h, is cooled to 82 ℃ and obtains a kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material, and cooling rate is 30 ℃/h.
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 (6)
1. a tear-resistant ageing-resistant high-strength wearable organic silicon rubber material, it is characterized in that, first by 100 parts of Methyl-ethylenvinyl gums, 35-40 part aluminium hydroxide, 1-3 part methyl-silicone oil, 0.5-1 part assisted ejection agent and take Methyl-ethylenvinyl gum as benchmark 0.5-1.2wt% Vinyldimethylethoxysilane, 0.4-1wt% diethyl diethoxy silane, 1-2.5wt% vinyltriethoxysilane drops in vacuum kneader mixing, melting temperature is 80-85 ℃, mixing time is 3-5min, mixing negative pressure is 0.5-0.9mpa, rotating speed is 35-45rpm, treat that temperature rises to 92-95 ℃ and adds water-ground limestone and take Methyl-ethylenvinyl gum and obtain material A as benchmark 8-12wt% nano-cellulose whisker continues mixing 10-12min, the weight ratio of water-ground limestone and nanofiber whisker is 4-5:2-3, then to adding in material A white carbon black and 0.8-1.3 part epoxy alkyl siloxane oligomer to drop in vacuum kneader, stir, wherein the weight ratio of Methyl-ethylenvinyl gum and white carbon black is 10:4-5, vacuum kneader rotating speed is 35-45rpm, after all materials are agglomerating, with 18-24 ℃/h heat-up rate, be warmed up to 160-180 ℃ of insulation, during insulation, negative pressure is 0.15-0.4Mpa, soaking time is 1-3h, be cooled to 75-85 ℃ and obtain a kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material, cooling rate is 25-30 ℃/h.
2. tear-resistant ageing-resistant high-strength wearable organic silicon rubber material according to claim 1, is characterized in that, the particle diameter of described water-ground limestone is 1-5 μ m.
3. tear-resistant ageing-resistant high-strength wearable organic silicon rubber material according to claim 1, is characterized in that, the weight ratio of Methyl-ethylenvinyl gum, precipitated silica and nano-cellulose whisker is 10:5:1.
4. tear-resistant ageing-resistant high-strength wearable organic silicon rubber material according to claim 1, it is characterized in that, the weight ratio of Methyl-ethylenvinyl gum, Vinyldimethylethoxysilane, diethyl diethoxy silane and vinyltriethoxysilane is 100:1-1.2:0.5-0.8:1.5-2.
5. tear-resistant ageing-resistant high-strength wearable organic silicon rubber material according to claim 1, it is characterized in that, melting temperature is 82 ℃, mixing time is 4min, mixing negative pressure is 0.8mpa, rotating speed is 40rpm, treats that temperature rises to 92 ℃ and adds nano-cellulose whisker, water-ground limestone to continue mixing 10min to obtain material A.
6. tear-resistant ageing-resistant high-strength wearable organic silicon rubber material according to claim 1, it is characterized in that, after all materials are agglomerating, with 20-22 ℃/h heat-up rate, be warmed up to 165-170 ℃, negative pressure is 0.2-0.3Mpa, time is 1-3h, be cooled to 78-82 ℃ and obtain a kind of tear-resistant ageing-resistant high-strength wearable organic silicon rubber material, cooling rate is 30 ℃/h.
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| CN201410188758.2A CN104046037A (en) | 2014-05-06 | 2014-05-06 | Tear resistant aging resistant high strength wear resistant organic silicone rubber material |
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| CN201410188758.2A CN104046037A (en) | 2014-05-06 | 2014-05-06 | Tear resistant aging resistant high strength wear resistant organic silicone rubber material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100012902A1 (en) * | 2006-06-26 | 2010-01-21 | Lawrence Joseph Rapson | Preparation Of Silicone Rubber Elastomers |
| CN101787846A (en) * | 2010-03-05 | 2010-07-28 | 浙江凌志精细化工有限公司 | Flame-retardant high-temperature vulcanized silicone rubber strips for doors and windows of buildings and preparation method thereof |
| CN102079878A (en) * | 2010-12-20 | 2011-06-01 | 东莞市贝特利新材料有限公司 | Bicomponent additional silicone rubber composite and preparation method thereof |
| CN102936413A (en) * | 2012-10-31 | 2013-02-20 | 浙江优特格尔医疗用品有限公司 | Silica gel catheter sacculus with high tear strength and preparation method thereof |
-
2014
- 2014-05-06 CN CN201410188758.2A patent/CN104046037A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100012902A1 (en) * | 2006-06-26 | 2010-01-21 | Lawrence Joseph Rapson | Preparation Of Silicone Rubber Elastomers |
| CN101787846A (en) * | 2010-03-05 | 2010-07-28 | 浙江凌志精细化工有限公司 | Flame-retardant high-temperature vulcanized silicone rubber strips for doors and windows of buildings and preparation method thereof |
| CN102079878A (en) * | 2010-12-20 | 2011-06-01 | 东莞市贝特利新材料有限公司 | Bicomponent additional silicone rubber composite and preparation method thereof |
| CN102936413A (en) * | 2012-10-31 | 2013-02-20 | 浙江优特格尔医疗用品有限公司 | Silica gel catheter sacculus with high tear strength and preparation method thereof |
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Application publication date: 20140917 |