Ceramic silicon rubber and preparation method thereof

A technology for ceramicizing silicone rubber and silicone rubber, which is applied in the field of rubber and its preparation, can solve the problems of inability to maintain the integrity of products, no mechanical strength of burnt residues, dangerous secondary disasters, etc., so as to improve the reaction speed of preparation and reduce production. cost, cost reduction effect

Inactive Publication Date: 2016-10-26
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after continuous high-temperature combustion, the burnt residue has no mechanical strength and turns into ashes, which cannot maintain the integrity of the product, and will cause more dangerous secondary disasters, such as short circuits after the sheath and insulation of the cable are burned.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The preparation of flame-retardant ceramic silicone rubber comprises the following steps:

[0035] ①Knead 100 parts of silicone rubber, 30 parts of fumed silica, 2 parts of hydroxyl silicone oil, and 20 parts of hydroxide in a kneader;

[0036] ② Vacuumize the kneader, keep the vacuum at -0.1~-0.04Mpa, and keep the temperature at 130~200°C;

[0037] ③Add the metal nickel catalyst into the kneader and knead;

[0038] ④ Add 90 parts of vitrified powder into the kneader, so that the vitrified powder and the kneaded silicone rubber can be mixed evenly to form a group of vitrified rubber;

[0039] 5. Move the lumpy ceramic rubber out of the kneader and cool it;

[0040] ⑥Knead the cooled lump ceramic rubber on the mill, add 1.5 parts of vulcanizing agent and knead

[0041] A ceramicized rubber is formed.

[0042] The silicone rubber is methyl vinyl silicone rubber, the average molecular weight of raw rubber is 550,000-650,000, and the selected brand is domestic 110-2.

...

Embodiment 2

[0056] The preparation of flame-retardant ceramic silicone rubber comprises the following steps:

[0057] ①Knead 100 parts of silicone rubber, 35 parts of fumed silica, 3 parts of hydroxyl silicone oil and 30 parts of hydroxide in a kneader;

[0058] ② Vacuum the kneader, keep the vacuum at -0.1~-0.04Mpa, and keep the temperature at 130~200°C;

[0059] ③Add the metal nickel catalyst into the kneader and knead;

[0060] ④ Add 80 parts of vitrified powder into the kneader to knead the vitrified powder and the kneaded silicone rubber evenly to form a lump of vitrified rubber;

[0061] 5. Move the lumpy ceramic rubber out of the kneader and cool it;

[0062] ⑥Knead the cooled lump ceramic rubber on the open mill, add 2.0 parts of vulcanizing agent and start kneading

[0063] A ceramicized rubber is formed.

[0064]The silicone rubber is methyl vinyl silicone rubber, the average molecular weight of raw rubber is 550,000-650,000, and the selected brand is domestic 110-2.

[006...

Embodiment 3

[0078] The preparation method of flame-retardant ceramic silicon rubber comprises the following steps:

[0079] ①Knead 100 parts of silicone rubber, 30 parts of fumed silica, 2 parts of hydroxyl silicone oil, and 30 parts of hydroxide in a kneader;

[0080] ② Vacuumize the kneader, keep the vacuum at -0.1~-0.04Mpa, and keep the temperature at 130~200°C;

[0081] ③Add the metal nickel catalyst into the kneader and knead;

[0082] ④ Add 100 parts of vitrified powder treated with silane coupling agent into the kneader, so that the vitrified powder and the kneaded silicone rubber can be mixed evenly to form a group of vitrified rubber;

[0083] 5. Move the lumpy ceramic rubber out of the kneader and cool it;

[0084] ⑥Knead the cooled lump ceramic rubber on the mill, add 2 parts of vulcanizing agent and knead

[0085] A ceramicized rubber is formed.

[0086] The silicone rubber is methyl vinyl silicone rubber, the average molecular weight of raw rubber is 550,000-650,000, and ...

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Abstract

The invention discloses ceramic silicon rubber and a preparation method thereof and relates to rubber and a preparation method thereof. The ceramic silicon rubber is prepared from, in parts by weight, 100 parts of silicon rubber, 10-60 parts of fumed silica, 0-10 parts of hydroxyl silicone oil, 0.00001-10 parts of metal nickel or a nickel compound calculated based on nickel, 0-10 parts of a coupling agent, 10-180 parts of zinc borate type porcelainized powder, 10-60 parts of a hydroxide flame-retardant and 0.01-5 parts of a vulcanizing agent. The materials are mixed in a kneading machine, vacuumized, then added to the kneading machine and uniformly mixed, bulk ceramic rubber is formed, cooled and mixed with the vulcanizing agent for open milling, and the flame-retardant ceramic silicon rubber is obtained. According to the ceramic silicon rubber, due to the fact that the nickel compound is added to the flame-retardant ceramic silicon rubber, the sintering temperature of the flame-retardant ceramic silicon rubber is reduced, the preparation reaction speed is increased, the production efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to a rubber and a preparation method thereof, in particular to a vitrified silicone rubber and a preparation method thereof. Background technique [0002] Ordinary rubber is generally completely burned in fire. In order to prevent flame and self-extinguishing, the previous technology is to add halogen flame retardant (such as decabromodiphenyl ether, etc.). Although the effect is very good, it emits a lot of poisonous and corrosive Intoxicating gas, accompanied by a large amount of smoke, has been banned by domestic and foreign environmental protection regulations. The current technology mainly uses halogen-free low-smoke flame-retardant rubber, mainly silicone rubber, ethylene-propylene rubber and ethylene-vinyl acetate rubber (EVM), etc. These rubbers are flame retardant and self-extinguishing when burned in fire. play a certain role. However, after continuous high-temperature combustion, the burnt residue has no mechanical st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/06C08K13/06C08K9/06C08K3/36C08K3/34C08K3/22C08K5/14C08K5/00B29C35/02
CPCC08L83/04B29C35/02C08K2201/003C08K2201/014C08L2201/02C08L2205/02C08L2205/025C08L83/06C08K13/06C08K9/06C08K3/36C08K3/34C08K2003/2227C08K2003/2224C08K5/14C08K5/0091
Inventor 梁兵孙重阳
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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