快速硫化型丁腈橡胶的制备及性能研究

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中图分类号：TQ333.7 文献标志码：A文章编号：1002-4026（2025）06-0086-08开放科学（资源服务）标志码（OSID）

Research on preparation and properties of rapidly vulcanized nitrile rubber

LI Yutong1，²，CHEN Dongping³，LI Tiezhu³，WANG Fushan ³*，LI Lin'，WANG Hui1 * （1.Collge of Polymer Science and Engineering，Qingdao Universityof Scienceand Technology，Qingdao 26042，China; 2. Shanghai Weilan Industrial Technology Co.，Ltd， Shanghai 201802， China;3. PetroChina Lanzhou Petrochemical Company，Lanzhou 730o60，China）

Abstract：Herein，a wet-mixing processwasused toimprovethedispersionoflersinnitrle latexbyincorporatingthree types of accelerators：trialkylchlorides（TACs），tetramethylthiuramdisulfide（TMTD），and zincdibenzyldithiocarbamate （ZTC）.These accelerators were added to cost-effectiveand readily availablenitrile latex，followed by mixing，coagulation，washing，and drying toobtain nitrile rubber nitrle butadiene rubber（NBR）.Anovel rapidly-vulcanized NBR was developed usingthe properties of NBR3445Fand NBR3345as reference standards，andthe effects of diferent types anddosages of accelerators onthe vulcanizationcharacteristics，mechanicalproperties，andmicrostructureof the developed NBR were studied.Results showed that compared with conventional rapidly vulcanized NBR，the developed NBR with 2 parts of accelerator TAC （TAC-2） exhibited 4.7 s higher vulcanization speed，a 138% higher tensile strength， and 59% higher tear strength.This NBR also exhibited substantially higher overall performance than NBRs with the other two accelerators，ZTCandTMTD.These findings were wellaligned withthe microstructural characteristics observed in scanning electron microscopyimage. Based on the premise of ensuring rapid vulcanization speed and safe processing performance，TAC，an accelerator with beter performance，can be selected to manufacture a rapidly vulcanized NBR， providing a technical path and an experimental basis for the development of related materials.

Key words σ：σ rapid vulcanization；wet mixing；accelerator；butadiene nitrile latex；nitrile rubber

丁腈橡胶（NBR）是由丁二烯和丙烯腈经过乳液聚合得到的，主要用于各种耐油及抗静电制品[1-2]。（剩余9936字）