山东科学

• 新材料 •    

快速硫化型丁腈橡胶的制备及性能研究

李昱彤1,2,陈东平3,李铁柱3,王福善3*,李 琳1,王辉1*

  

  1. 1 青岛科技大学 高分子科学与工程学院,山东 青岛 2660422 上海未蓝工业技术有限公司,上海 2018023 中国石油兰州石化公司,甘肃 兰州 730060
  • 收稿日期:2024-11-15 接受日期:2024-12-16 出版日期:2025-09-02 上线日期:2025-09-02
  • 通信作者: 王福善,王辉 E-mail:wfshan@petrochina.com.cn/hwang@qust.edu.cn
  • 作者简介:李昱彤(2000-),女,硕士研究生,研究方向为快速硫化型丁腈橡胶的制备及性能研究。
  • 基金资助:
    国家自然科学基金项目(51603111、5170311);山东省自然科学基金面上项目(ZR2021ME107);中国博士后科学基金项目(2022M721903、2021M700553、2020M672014);赵氏建新集团有限公司博士后项目

Research on preparation and mechanical properties of rapidly vulcanized nitrile rubber

LI Yutong 1,2,CHEN Dongping3, LI Tiezhu3, WANG Fushan3*, LI Lin1,WANG Hui1*   

  1. 1.College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; 2. Shanghai Weilan Industrial Technology Co., Ltd, Shanghai 201802, China; 3.PetroChina Lanzhou Petrochemical Company, Lanzhou 730060, China 
  • Received:2024-11-15 Accepted:2024-12-16 Online:2025-09-02 Published:2025-09-02
  • Contact: WANG Fushan,WANG Hui E-mail:wfshan@petrochina.com.cn/hwang@qust.edu.cn

摘要: 采用湿法混炼的工艺,将三烷基氯化铵(TAC)、二硫化四甲基秋兰姆(TMTD)和二苄基二硫代氨基甲酸锌(ZTC)这三种促进剂分别填充于丁腈胶乳中,以此改善填料的分散性。将促进剂加入廉价易得的丁腈胶乳中经过混合、絮凝、洗涤、干燥得到丁腈橡胶(NBR),以快速硫化型丁腈橡胶NBR3445F和NBR3345的性能作为参照标准,制备了一种新型的快速硫化型NBR,并研究了不同种类及用量的促进剂对NBR硫化特性、力学性能及微观结构的影响。结果表明:相较于快速硫化型NBR,添加2份TAC的NBR(TAC-2)硫化速度加快了4.7 s,拉伸强度提升了138%,撕裂强度提高了59%,其综合性能也明显优于其他两种促进剂ZTC和TMTD,以上结果与扫描电子显微镜(SEM)图像所呈现的微观结构特征吻合较好。基于在确保较快硫化速度与安全加工性能的前提下,选择性能较优异的促进剂TAC来制备快速硫化型NBR,为相关材料的制备提供了技术路径与实验依据。

关键词: 快速硫化, 湿法混炼, 促进剂, 丁腈胶乳, 丁腈橡胶(NBR)

Abstract: Herein, a wet-mixing process was used to improve the dispersion of fillers in nitrile latex by incorporating three types of accelerators: trialkyl chlorides (TACs), tetramethylthiuram disulfide (TMTD), and zinc dibenzyldithiocarbamate (ZTC). These accelerators were added to cost-effective and readily available nitrile latex, followed by mixing, coagulation, washing, and drying to obtain nitrile rubber nitrile butadiene rubber (NBR). A novel rapidly-vulcanized NBR was developed using the properties of NBR3445F and NBR3345 as reference standards, and the effects of different types and dosages of accelerators on the vulcanization characteristics, mechanical properties, and microstructure of 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 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, ZTC and TMTD. These findings were well aligned with the microstructural characteristics observed in scanning electron microscopy image. Based on the premise of ensuring rapid vulcanization speed and safe processing performance, TAC, an accelerator with better 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:  rapid vulcanization, wet mixing, accelerator, butadiene nitrile latex, nitrile rubber(NBR)

中图分类号: 

  • TQ333.7 

开放获取 本文遵循知识共享-署名-非商业性4.0国际许可协议(CC BY-NC 4.0),允许第三方对本刊发表的论文自由共享(即在任何媒介以任何形式复制、发行原文)、演绎(即修改、转换或以原文为基础进行创作),必须给出适当的署名,提供指向本文许可协议的链接,同时表明是否对原文作了修改,不得将本文用于商业目的。CC BY-NC 4.0许可协议详情请访问 https://creativecommons.org/licenses/by-nc/4.0