科琴黑增强氯丁橡胶/溴化丁基橡胶复合材料的臭氧与紫外稳定性、透气性及摩擦学性能OA
Ketjenblack-reinforced chloroprene rubber/brominated butyl rubber blends:A leap forward in Ozone and UV stability,Air Per-meability,and Tribological performance
弹性体在工程中应用广泛,但其在高温、臭氧、紫外光照及有毒化学物质环境时性能易衰减.为提升其在特定工业场景中的性能,通常将其与其他材料混合改性.本文将氯丁橡胶与溴化丁基橡胶混合,并添加质量分数为20%的科琴黑(KB)以增强其性能.该科琴黑多孔且蓬松,比表面积高达 1347 m2/g.按照 ASTM 标准,对复合材料在紫外线、臭氧、盐水、汽油及柴油环境暴露前后进行拉伸测试,评价其性能保持率.透射电镜表明科琴黑填料分散均匀.摩擦学研究与阻隔性能结果显示,科琴黑为最优添加量为 10%,此时填料分散最为均匀.采用Kissinger-Akahira-Sunose 模型研究热降解动力学并计算活化能.动态力学分析表明,20%复合材料的玻璃化转变温度降低5℃.这些弹性体混合物可被视为具有巨大应用潜力的前沿材料,适用于极其恶劣的工业应用.
Elastomers are extensively used in engineering,but their properties suffer when they are exposed to heat,ozone,UV radiation,and toxic chemicals.To improve their perform-ance for specific industrial applications,they are often blended with other materials.We blended chloroprene rubber with brominated butyl rub-ber and reinforced it with Ketjenblack(KB)in concentrations up to 20%.KB has a porous and fluffy morphology and a high specific surface area of 1347 m2/g.Tensile tests were conducted before and after exposure to UV,ozone,saline,petrol,and diesel environments,and their retention capacity was evaluated according to ASTM standards.Trans-mission electron microscopy revealed a uniform dispersion of KB filler.Tribological studies and barrier properties showed the best content of KB to be 10%because of its uniform dispersion.Thermal degradation kinetics were studied using Kissinger-Akahira-Sunose modelling to determine its activation energy.Dynamic mechanical analysis indicates a reduction of 5 ℃ in the glass transition for a 20%composite.These elastomeric blends can be considered cutting-edge materials with great potential for use in extremely harsh industrial applications.
Rakesh Reghunath;Dileep P;Mehar Al Minnath;Unnikrishnan T G;Soney C George;Nandakumar Kalarikkal;Murali K P;Jinu Paul
Department of Mechanical Engineering,National Institute of Technology Calicut,Kozhikode,Kerala-673 601,India||Department of Mechanical Engineering,NSS College of Engineering,Palakkad,Kerala-678 008 IndiaJ J Murphy Research Centre,Rubber Park,Valayanchirangara,Ernakulum,Kerala-683 556,IndiaDepartment of Chemistry Department,MES Mampad College,Mampad,Kerala,Pin-676542,IndiaLecturer in Engineering,Leicester College,Leicester,UKCentre for Nanoscience and Technology,Amal Jyothi College of Engineering,Kanjirappally,Kottayam,Kerala-686 518,IndiaInternational and Inter University Centre for Nanoscience and Nanotechnology,MG University,Kottayam,Kerala-686 560,IndiaDepartment of Mechanical Engineering,National Institute of Technology Calicut,Kozhikode,Kerala-673 601,IndiaDepartment of Mechanical Engineering,National Institute of Technology Calicut,Kozhikode,Kerala-673 601,India
通用工业技术
氯丁橡胶/溴化丁基橡胶共混物科琴黑透气性耐臭氧性摩擦学研究
Rubber blendsKetjenblackAir PermeabilityOzone ResistanceTribological Studies
《新型炭材料（中英文）》 2026 (2)
408-430,23
The authors would like to sincerely thank De-partment of Science and Technology(DST)Govt of India and SEM Centre Department of Material Sci-ence and Engineering for providing the facility pur-chased under the scheme-FIST-No SR/FST/ET-I/2021/840,Dept.of Chemical Engineering,NIT Cali-cut,International and Inter University Centre for Nanoscience and Nanotechnology,MG University,and JJ Murphy Research Centre,Rubber Park India(P)Ltd.Ernakulam for providing the infrastructure and technical support for the execution of the work.Also authors would like to thank AICTE,Govt of In-dia,for permitting the first author to avail AICTE-Quality Improvement Scheme for pursuing his doctoral studies.
评论