{"title":"Influence of nanoclay on the mechanical performance of CR/NR composites","authors":"K. Parthasarathy, S. Baskar, S. Vishvanathperumal","doi":"10.1007/s42464-026-00339-4","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>This study investigates the effect of nanoclay incorporation on the properties of chloroprene rubber (CR)/natural rubber (NR) blends, with a primary objective of enhancing mechanical performance, curing behaviour, solvent resistance, and durability for advanced engineering applications. Nanocomposites were prepared using a 50/50 CR/NR blend with varying nanoclay loadings of 0, 2, 4, 6, 8, and 10 phr (parts per hundred rubber) via a two-roll mill and subsequently vulcanised at 160 °C in a compression mould. Comprehensive characterisation included tensile strength, stress at 100% elongation, hardness, elongation at break, tear strength, rebound resilience, compression set, swelling, and abrasion resistance. Curing analysis revealed that nanoclay accelerated vulcanisation and increased torque values, indicating higher crosslink density. Up to 6 phr nanoclay, tensile strength and stress at 100% elongation improved by 31% and 32%, respectively, while tear strength increased by 43%. Beyond this loading, these properties declined. Elongation at break and rebound resilience decreased with increasing nanoclay, whereas hardness, tear strength, and compression set consistently rose. Solvent interaction studies were performed using eleven solvents—benzene, toluene, xylene, mesitylene, n-pentane, n-hexane, n-heptane, n-octane, dichloromethane, chloroform, and carbon tetrachloride—providing insight into the swelling behaviour of nanocomposites in both aromatic/aliphatic hydrocarbons and chlorinated solvents. The results demonstrate that optimal nanoclay content improves mechanical strength, abrasion resistance, and solvent resistance, supporting its potential use in demanding industrial environments.</p>\n </div>","PeriodicalId":662,"journal":{"name":"Journal of Rubber Research","volume":"29 1","pages":"25 - 41"},"PeriodicalIF":1.4000,"publicationDate":"2026-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Rubber Research","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s42464-026-00339-4","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
This study investigates the effect of nanoclay incorporation on the properties of chloroprene rubber (CR)/natural rubber (NR) blends, with a primary objective of enhancing mechanical performance, curing behaviour, solvent resistance, and durability for advanced engineering applications. Nanocomposites were prepared using a 50/50 CR/NR blend with varying nanoclay loadings of 0, 2, 4, 6, 8, and 10 phr (parts per hundred rubber) via a two-roll mill and subsequently vulcanised at 160 °C in a compression mould. Comprehensive characterisation included tensile strength, stress at 100% elongation, hardness, elongation at break, tear strength, rebound resilience, compression set, swelling, and abrasion resistance. Curing analysis revealed that nanoclay accelerated vulcanisation and increased torque values, indicating higher crosslink density. Up to 6 phr nanoclay, tensile strength and stress at 100% elongation improved by 31% and 32%, respectively, while tear strength increased by 43%. Beyond this loading, these properties declined. Elongation at break and rebound resilience decreased with increasing nanoclay, whereas hardness, tear strength, and compression set consistently rose. Solvent interaction studies were performed using eleven solvents—benzene, toluene, xylene, mesitylene, n-pentane, n-hexane, n-heptane, n-octane, dichloromethane, chloroform, and carbon tetrachloride—providing insight into the swelling behaviour of nanocomposites in both aromatic/aliphatic hydrocarbons and chlorinated solvents. The results demonstrate that optimal nanoclay content improves mechanical strength, abrasion resistance, and solvent resistance, supporting its potential use in demanding industrial environments.
期刊介绍：
The Journal of Rubber Research is devoted to both natural and synthetic rubbers, as well as to related disciplines. The scope of the journal encompasses all aspects of rubber from the core disciplines of biology, physics and chemistry, as well as economics. As a specialised field, rubber science includes within its niche a vast potential of innovative and value-added research areas yet to be explored. This peer reviewed publication focuses on the results of active experimental research and authoritative reviews on all aspects of rubber science.
The Journal of Rubber Research welcomes research on:
the upstream, including crop management, crop improvement and protection, and biotechnology;
the midstream, including processing and effluent management;
the downstream, including rubber engineering and product design, advanced rubber technology, latex science and technology, and chemistry and materials exploratory;
economics, including the economics of rubber production, consumption, and market analysis.
The Journal of Rubber Research serves to build a collective knowledge base while communicating information and validating the quality of research within the discipline, and bringing together work from experts in rubber science and related disciplines.
Scientists in both academia and industry involved in researching and working with all aspects of rubber will find this journal to be both source of information and a gateway for their own publications.
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