Method for preparing liquid butadiene rubber anti-aging agent

A rubber antioxidant and liquid cis-butadiene technology, applied in the field of composite antioxidants, can solve the problems of inconvenient use of antioxidants, uncontrollable cross-linking aging of cis-butadiene rubber, increase in gel content and Mooney viscosity, etc. Comprehensive anti-aging performance, good synergistic effect, and the effect of improving stability
CN103304716AActive Publication Date: 2013-09-18嘉兴如运建筑科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
嘉兴如运建筑科技有限公司
Publication Date
2013-09-18

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Abstract

The invention discloses a method for preparing a liquid butadiene rubber stabilizer, and belongs to the technical field of preparation of an anti-aging agent, and relates to a liquid phenolic antioxidant and a sulfur ethers antioxidant. The method comprises the steps of: preparing a liquid phenolic antioxidant and a sulfur ether antioxidant; compounding the liquid phenolic antioxidant and the sulfur ether antioxidant with a polymerization reaction terminator; adding to a blending kettle; agitating, heating and mixing to form a liquid mixture, and cooling to room temperature, so as to obtain the liquid butadiene rubber anti-aging agent. In the process of preparing the liquid anti-aging agent, the mass ratio of the sulfur ether antioxidant to the phenolic antioxidant is 1:(0.40-0.63); the mass ratio of the sulfur ether antioxidant to a phosphite antioxidant is 1:(0.25-0.40); the mass ratio of the sulfur ether antioxidant to the polymerization reaction terminator is 1:(0.10-0.20). By adopting the anti-aging system, the comprehensive anti-aging performance of the rubber product can be obviously improved.
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Description

technical field

[0001] The present invention is to prepare a liquid nickel-based butadiene rubber anti-aging agent, and relates to preparing a liquid phenolic antioxidant, which is compounded with other liquid-state substances to form a compound anti-aging agent with a liquid dosage form. It is used in butadiene rubber to solve dust pollution and use safety problems in the industrialization process, and has good anti-aging performance. Background technique

[0002] 1,3-butadiene as raw material, C 6 Mixed aliphatic hydrocarbons are used as solvents, nickel naphthenate is used as the main catalyst, and triisobutylaluminum and boron trifluoride etherate complexes are used as co-catalysts. Anionic polymerization, after the polymerization reaction is completed, anti-aging agent is added, condensed, and dried to make nickel-based butadiene rubber (NiBR for short), NiBR is a diene-based stereoregular polymer, molecular formula:

[0003]

[0004] Due to the high degree of unsa...

Claims

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