Despite growing interest in nano-sized fillers,micro-sized fillers with desired compatibility are still used for reinforcing rubbers,owing to their lower production cost and easier processing relative to nano-sized fillers.Especially,the abundant and eco-friendly clay minerals are recognized as the materials of the twenty-first century.Herein,illite,a naturally occurring clay having dimension in micrometric scale,has been selected as filler to reinforce the SBR.To improve the compatibility of illite with SBR,the illite was modified by either bis[3-(triethoxysilyl)propyl]tetrasulfide(Si69-illite)or 3-mercaptopropyltriethoxysilane(KH580-illite).The interfacial interactions of SBR composites filled with pristine illite(illite/SBR)and Si69-illite(Si69-illite/SBR),or KH580-illite(KH580-illite/SBR)were characterized by bound rubber content and Payne effect measurements,while dynamic hysteresis losses of these uncured and cured composites were also analyzed under various strain amplitudes.It was found that the filler-rubber interactions were greatly improved for Si69-illite/SBR and KH580-illite/SBR systems compared to the illite/SBR composite.This leads to an increment of modulus at 300％strain of the composites from 3.46 MPa for illite/SBR to 7.70 MPa for Si69-illite/SBR and 12.96 MPa for KH580-illite/SBR.Moreover,lower rolling resistance and better wear resistance without compromising wet traction of Si69-illite/SBR and KH580-illite/SBR have been achieved.This demonstrates the high possibility of Si69 and KH580 modified illites as promising alternative fillers for reinforcing rubbers.

Zhe-Peng Wang;Hao Zhang;Qiang Liu;Shao-Juan Wang;Shou-Ke Yan

Key Laboratory of Rubber-Plastics,Ministry of Education,Qingdao University of Science & Technology,Qingdao 266042,China;State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology,Beijing 100029,China

高分子科学（英文版）

[1]Zhe-Peng Wang;Hao Zhang;Qiang Liu;Shao-Juan Wang;Shou-Ke Yan-.Effects of Interface on the Dynamic Hysteresis Loss and Static Mechanical Properties of Illite Filled SBR Composites)[J].高分子科学（英文版）,2022(11):1493-1502

Illite,micrometric,triethoxysilyl,mercaptopropyltriethoxysilane,KH580,uncured,illites

Effects,Interface,Dynamic,Hysteresis,Loss,Static,Mechanical,Properties,Filled,SBR,Composites,Despite,growing,interest,nano,sized,fillers,desired,compatibility,still,used,reinforcing,rubbers,their,lower,production,cost,easier,processing,relative,Especially,abundant,friendly,clay,minerals,recognized,materials,twenty,first,century,Herein,naturally,occurring,having,dimension,scale,has,been,selected,reinforce,To,was,modified,by,either,bis,tetrasulfide,Si69,interfacial,interactions,composites,filled,pristine,were,characterized,bound,content,Payne,effect,measurements,while,dynamic,hysteresis,losses,these,also,analyzed,under,various,strain,amplitudes,It,found,that,greatly,improved,systems,compared,This,leads,increment,modulus,from,Moreover,rolling,resistance,better,wear,without,compromising,wet,traction,have,achieved,demonstrates,high,possibility,alternative

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