{"title":"球磨辅助剥离和沉积制备热稳定性更强的几层石墨烯/PVC 纳米复合材料","authors":"Jinyun Li, Jingwei Xu, Wenhua Chen, Chen Ma, Guohua Chen","doi":"10.1002/vnl.22080","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <p>It is still a great challenge to prepare high-performance graphene/polymer nanocomposites by fully utilizing the large surface area, high tensile strength, and high thermal stability. Herein, a simple but efficient approach based on ball milling was developed to in situ exfoliate graphite into single-layer graphene and simultaneously deposit them onto polyvinyl chloride (PVC) surface. Graphene/PVC nanocomposites were prepared via the plasticized molding and followed by hot pressing. Resulting from incorporation of highly exfoliated and evenly distributed graphene nanosheets, the obtained graphene/PVC nanocomposites displayed a significantly enhanced thermal stability. In contrast with neat PVC, the temperature of maximum weight loss (<i>T</i><sub>max</sub>), glass transition temperature (<i>T</i><sub>g</sub>), and residual content of composite with 2.0 wt% graphene were increased by 10, 13°C, and 4.4%, respectively. Based on the deep analysis on heat releasing behavior and structure of residue, we proposed the related enhancing mechanism. Large-area and highly exfoliated graphene sheets effectively inhibited the heat/mass transfer in composite system and prevented the degradation of PVC, as well as promoted the compact residue formation from polymer itself at high temperatures. In short, this work provided an environmentally friendly strategy to prepare high-performance graphene/polymer nanocomposites with using low additive amount of single-layer graphene.</p>\n </section>\n \n <section>\n \n <h3> Highlights</h3>\n \n <div>\n <ul>\n \n <li>A simple graphite exfoliation method based on ball milling was proposed.</li>\n \n <li>Strong shearing and compact force induce graphene exfoliation and deposition.</li>\n \n <li>Graphene/PVC nanocomposites with enhanced thermal stability was prepared.</li>\n </ul>\n </div>\n </section>\n </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"30 3","pages":"715-726"},"PeriodicalIF":3.8000,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ball milling-assisted exfoliation and deposition to prepare few-layer graphene/PVC nanocomposites with enhanced thermal stability\",\"authors\":\"Jinyun Li, Jingwei Xu, Wenhua Chen, Chen Ma, Guohua Chen\",\"doi\":\"10.1002/vnl.22080\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <p>It is still a great challenge to prepare high-performance graphene/polymer nanocomposites by fully utilizing the large surface area, high tensile strength, and high thermal stability. Herein, a simple but efficient approach based on ball milling was developed to in situ exfoliate graphite into single-layer graphene and simultaneously deposit them onto polyvinyl chloride (PVC) surface. Graphene/PVC nanocomposites were prepared via the plasticized molding and followed by hot pressing. Resulting from incorporation of highly exfoliated and evenly distributed graphene nanosheets, the obtained graphene/PVC nanocomposites displayed a significantly enhanced thermal stability. In contrast with neat PVC, the temperature of maximum weight loss (<i>T</i><sub>max</sub>), glass transition temperature (<i>T</i><sub>g</sub>), and residual content of composite with 2.0 wt% graphene were increased by 10, 13°C, and 4.4%, respectively. Based on the deep analysis on heat releasing behavior and structure of residue, we proposed the related enhancing mechanism. Large-area and highly exfoliated graphene sheets effectively inhibited the heat/mass transfer in composite system and prevented the degradation of PVC, as well as promoted the compact residue formation from polymer itself at high temperatures. In short, this work provided an environmentally friendly strategy to prepare high-performance graphene/polymer nanocomposites with using low additive amount of single-layer graphene.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Highlights</h3>\\n \\n <div>\\n <ul>\\n \\n <li>A simple graphite exfoliation method based on ball milling was proposed.</li>\\n \\n <li>Strong shearing and compact force induce graphene exfoliation and deposition.</li>\\n \\n <li>Graphene/PVC nanocomposites with enhanced thermal stability was prepared.</li>\\n </ul>\\n </div>\\n </section>\\n </div>\",\"PeriodicalId\":17662,\"journal\":{\"name\":\"Journal of Vinyl & Additive Technology\",\"volume\":\"30 3\",\"pages\":\"715-726\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2023-12-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Vinyl & Additive Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/vnl.22080\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Vinyl & Additive Technology","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/vnl.22080","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Ball milling-assisted exfoliation and deposition to prepare few-layer graphene/PVC nanocomposites with enhanced thermal stability
It is still a great challenge to prepare high-performance graphene/polymer nanocomposites by fully utilizing the large surface area, high tensile strength, and high thermal stability. Herein, a simple but efficient approach based on ball milling was developed to in situ exfoliate graphite into single-layer graphene and simultaneously deposit them onto polyvinyl chloride (PVC) surface. Graphene/PVC nanocomposites were prepared via the plasticized molding and followed by hot pressing. Resulting from incorporation of highly exfoliated and evenly distributed graphene nanosheets, the obtained graphene/PVC nanocomposites displayed a significantly enhanced thermal stability. In contrast with neat PVC, the temperature of maximum weight loss (Tmax), glass transition temperature (Tg), and residual content of composite with 2.0 wt% graphene were increased by 10, 13°C, and 4.4%, respectively. Based on the deep analysis on heat releasing behavior and structure of residue, we proposed the related enhancing mechanism. Large-area and highly exfoliated graphene sheets effectively inhibited the heat/mass transfer in composite system and prevented the degradation of PVC, as well as promoted the compact residue formation from polymer itself at high temperatures. In short, this work provided an environmentally friendly strategy to prepare high-performance graphene/polymer nanocomposites with using low additive amount of single-layer graphene.
Highlights
A simple graphite exfoliation method based on ball milling was proposed.
Strong shearing and compact force induce graphene exfoliation and deposition.
Graphene/PVC nanocomposites with enhanced thermal stability was prepared.
期刊介绍：
Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.
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