Regenerated vulcanized hydrogenated nitrile-butadiene rubber and preparation method thereof
A hydrogen sulfide nitrile and rubber technology, which is applied in the field of rubber material recycling and reuse, can solve the problems of no public reports on the hydrogen sulfide nitrile recycling technology, high price of hydrogen sulfide nitrile rubber, large secondary pollution, etc. , to achieve good prospects for industrial application, significant economic and social benefits, and no pollution
Inactive Publication Date: 2014-08-13
XUZHOU COLLEGE OF INDAL TECH +1
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Problems solved by technology
[0002] The recycling and reuse of waste rubber and its products is one of the main methods to reduce the environmental pollution of waste rubber and realize the recycling of resources. Among the regeneration methods of ordinary rubber (natural rubber, styrene-butadiene rubber, butadiene rubber, nitrile rubber, etc.), most of them are Chemical methods, which produce large secondary pollution, large equipment investment, and large energy consumption, are restricted in many regions and countries
Due to the relatively high-speed development of my country's economy in recent years, the amount of hydrogenated nitrile rubber has increased rapidly, and the amount of waste hydrogenated nitrile rubber or waste hydrogenated nitrile rubber products produced thereupon is also large. Hydrogenated nitrile rubber The price is high (about 300 yuan / kg), and the recycling of these hydrogen-sulfurized nitrile rubbers has realistic social and economic value, but there are no public reports on the recycling technology of hydrogen-sulfured nitrile rubber.
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0018] After slicing the recovered 2010 hydrogenated nitrile vulcanizate, weigh 100 parts (parts by weight, the same below) and add 20 parts of modifier E1102 to the open rubber mixing machine. ~60°C, thin pass times 50 times, then put it in the refining machine, out of the sheet, package and store.
Embodiment 2
[0020] After slicing the recovered 2010 hydrogenated nitrile vulcanizate, weigh 100 parts and mix it with 20 parts of modifier E1102 at 50-70°C, then add it to the open rubber mixing machine, with a roll distance of 0.3-0.5 mm, and a roll The temperature is 60-90°C, the number of times of thinning is 30 times, and then it is placed in a refiner, and the slices are released and packaged for storage.
Embodiment 3
[0022] First, the recovered 2010 hydrogenated nitrile vulcanizate is pulverized with a special rubber pulverizer, and then the rubber powder is screened with a mesh size of 20 mesh or more. Weigh 100 parts of the above rubber powder and 20 parts of 2,3-benzofuran and mix them well at 50-70°C, then add them to the open rubber mixing machine, the roller distance is 0.2-0.3mm, and the roller temperature is 50-70°C , the number of times of thinning is 50 times, and then it is placed in a refiner, and the film is released, packaged and stored.
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The invention relates to a regenerated vulcanized hydrogenated nitrile-butadiene rubber and a preparation method thereof. The regenerated vulcanized hydrogenated nitrile-butadiene rubber is prepared by adding recovered vulcanized hydrogenated nitrile-butadiene rubber and a modifier in a certain weight ratio into a rubber mixing mill and carrying out thin-rubber passing and refining. According to detection results, the regenerated vulcanized hydrogenated nitrile-butadiene rubber has good performance and can partially or totally replace novel hydrogenated nitrile-butadiene rubber in manufacturing of hydrogenated nitrile-butadiene rubber products. According to the invention, waste vulcanized hydrogenated nitrile-butadiene rubber and leftover materials and unqualified products generated in production of vulcanized hydrogenated nitrile-butadiene rubber are recovered and reused, and the method has the advantages of easy and convenient implementation and operation, small equipment investment, no pollution, good economic and social benefits and wide industrial popularization and application prospects.
Description
technical field [0001] The invention relates to a rubber material recycling technology, in particular to a regenerated hydrogenated nitrile rubber and a preparation method thereof, belonging to the technical field of rubber material recycling. Background technique [0002] The recycling and reuse of waste rubber and its products is one of the main methods to reduce the environmental pollution of waste rubber and realize the recycling of resources. Among the regeneration methods of ordinary rubber (natural rubber, styrene-butadiene rubber, butadiene rubber, nitrile rubber, etc.), most of them are Chemical methods, which produce large secondary pollution, large equipment investment, and large energy consumption, are restricted in many regions and countries. Due to the relatively high-speed development of my country's economy in recent years, the amount of hydrogenated nitrile rubber has increased rapidly, and the amount of waste hydrogenated nitrile rubber or waste hydrogenate...
Claims
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Login to View More IPC IPC(8): C08L15/00B29B7/00
Inventor 翁国文刘琼琼杨慧
Owner XUZHOU COLLEGE OF INDAL TECH