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Rubber composition

A rubber composition and rubber technology, applied in tire parts, rolling resistance optimization, transportation and packaging, etc., can solve the problem of high price

Inactive Publication Date: 2012-07-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] In the research on the replacement of natural rubber by isoprene rubber, according to literature records, the same amount of isoprene rubber is used to replace natural rubber in the tread rubber formula of agricultural tires, and the vulcanization system is properly adjusted; Russian isoprene rubber SKI-3 completely replaces natural rubber , used in combination with butadiene rubber and styrene-butadiene rubber, have achieved good results, but mostly imported Russian isoprene rubber, the price is higher

Method used

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preparation example Construction

[0052] 2 # The preparation method of isoprene rubber is as follows: isoprene monomer is subjected to solution polymerization under the action of a catalyst, wherein the isoprene monomer is a polymerization grade, the catalyst can be a titanium-based catalyst, and wherein the solvent Can be an inert hydrocarbon solvent.

[0053] The anti-aging agent is two kinds of p-phenylenediamine anti-aging agents: 4010NA and 4020, and one quinoline anti-aging agent: RD.

[0054] The main component of anti-aging agent RD is 2,2,4-trimethyl-1,2-dihydroquinoline polymer. In anti-aging agent RD, only dimer, trimer and tetramer have anti-aging effect , and the antiaging effect of dimer is the best, and the used environmental protection type antioxidant dimer content of this patent reaches 49-52%, and two, three, tetramer total content reaches 70-72%.

[0055] 2,2,4-trimethyl-1,2-dihydroquinoline polymer (resin) Polymerizcd 2,2,4-trimethyl-1,2-dihydroquinoline (Resin)

[0056] Structural form...

Embodiment

[0089] The present invention will be described in more detail below with examples, but the present invention is not limited thereto.

[0090] 1. Raw materials

[0091] Natural rubber: SCR20

[0092] Isoamyl rubber 1: Mooney viscosity 65-75, synthesized by Sinopec Yanshan Branch of Beijing Research Institute of Chemical Industry according to the above method.

[0093] Isoprene rubber 2 # : Mooney viscosity 66-84, synthesized by Yanshan Branch of Sinopec Beijing Research Institute of Chemical Industry according to the above method.

[0094] Carbon black: Zhongchao wear-resistant furnace black N220

[0095] Antiaging agent 1: 4010NA, 4020, RD, complying with EU REACH environmental protection regulations (purchased from Jiangsu Sunon Chemical Technology Co., Ltd.), 4010NA-E, 4020-E, RD-E represent environmental protection 4010NA, 4020, RD respectively

[0096] Antiaging agent 2: 4010NA, not certified by EU REACH environmental regulations (purchased from Sinopec Nanhua Company)...

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Abstract

The invention provides a rubber composition. According to the invention, low-cost alkadiene rubbers are adopted, such as natural rubber (NR) and isoprene rubber (IR); a single alkadiene rubber component can be used, and a combination of two or more than two alkadiene rubber components can also be used; an anti-aging agent used in the rubber composition meets the requirements of European Union REACH environmental protection law, and the rubber composition contains high-content anti-aging active components; an accelerating agent used in the rubber composition can generate fewer nitrocompounds, and the processing property and mechanical property of the rubber composition are equivalent to those of the rubber composition in which a common anti-aging agent and a common accelerating agent are used. The invention simultaneously provides a pneumatic tyre using the rubber composition as a material. Specifically, the invention relates to a rubber composition which comprises a rubber component containing diene rubbers, an environment-friendly anti-aging agent and an environment-friendly accelerating agent; and the invention further relates to a pneumatic tyre using the rubber composition as a material.

Description

technical field [0001] The invention relates to a rubber composition, which uses cheap isoprene rubber to replace natural rubber, the anti-aging agent used in it meets the requirements of EU REACH environmental protection regulations, and has a high content of anti-aging active ingredients, and the accelerator used in it produces less inferior Nitro compounds. The present invention also relates to a pneumatic tire using the combination as a raw material. Background technique [0002] According to IISRP report, the production capacity of isoprene rubber (IR) in the world in 2008 was 611,000 t / a. IR grades mainly include: Russia’s SKI-3 (titanium IR) series and SKI-5 (neodymium IR) series, the SKI-3 series includes SKI-3, SKI-3S, and the SKI-5 series includes SKI-5, SKI -5PM; Nipol2200 series from Zeon Corporation in Japan, and Natsyn series from Goodyear Corporation in the United States. There are a number of enterprises and scientific research institutes in China developi...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/00C08K13/02B60C1/00
CPCY02T10/862
Inventor 赵青松王丽丽于国柱李静刘苹刘翠云乔勋昌李绍宁
Owner CHINA PETROLEUM & CHEM CORP
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