Bridging chains mediate nonlinear mechanics of polymer nanocomposites under cyclic deformation
文献类型：期刊论文
| 作者 | Varol, H. Samet; Srivastava, Anchit4; Kumar, Sachin; Bonn, Mischa; Meng, Fanlong3 ; Parekh, Sapun H.
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| 刊名 | POLYMER
 |
| 出版日期 | 2020 |
| 卷号 | 200页码:122529 |
| 关键词 | REINFORCEMENT ELASTOMERS MODEL SOFT SIZE |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2020.122529 |
| 英文摘要 | Elastomer-based nanocomposites, mixtures of elastomeric rubber with hard nanoparticles, generally exhibit strain stiffening under large strains while also showing strain softening at low strain during large cyclic deformations due to the Mullins Effect. Numerous studies have documented the Mullins effect over the last 50 years, and many models have been developed to explain (and predict) the Mullins effect as it is closely related to material failure. Even with this rich history, relatively few studies have connected experimentally measured changes in nanocomposite chain structure with nonlinear strain hardening and nanofiller dispersion. In this work, we quantify the strain hardening mechanics, and chain anisotropy in situ in silica-filled acrylonitrile butadiene rubber (NBR) nanocomposites under cyclic tensile loading. Macroscopic strain hardening and molecular chain anisotropy increased after the first loading cycle, as a strong Mullins effect appeared, for nanocomposites with sufficient filler volume fraction. In composites with low filler content, we observed little increase in strain hardening or chain anisotropy and a barely-visible Mullins effect. Our results provide strong experimental support that chain delamination from the filler surface is related to the Mullins effect in nanocomposite materials. |
| 学科主题 | Polymer Science |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27170]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Parekh, Sapun H.] Univ Texas Austin, Dept Biomed Engn, 107 W Dean Keeton Rd, Austin, TX 78712 USA 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Max Planck Inst Sci Light, Staudtstr 2, D-91058 Erlangen, Germany 4.Tech Univ Darmstadt, Ernst Berl Inst Tech & Makromol Chem, Alarich Weiss Str 12, D-64287 Darmstadt, Germany 5.[Varol, H. Samet; Srivastava, Anchit; Kumar, Sachin; Bonn, Mischa; Parekh, Sapun H.] Max Planck Inst Polymer Res, Dept Mol Spect, Ackermannweg 10, D-55128 Mainz, Germany |
| 推荐引用方式 GB/T 7714 | Varol, H. Samet,Srivastava, Anchit,Kumar, Sachin,et al. Bridging chains mediate nonlinear mechanics of polymer nanocomposites under cyclic deformation[J]. POLYMER,2020,200:122529. |
| APA | Varol, H. Samet,Srivastava, Anchit,Kumar, Sachin,Bonn, Mischa,Meng, Fanlong,&Parekh, Sapun H..(2020).Bridging chains mediate nonlinear mechanics of polymer nanocomposites under cyclic deformation.POLYMER,200,122529. |
| MLA | Varol, H. Samet,et al."Bridging chains mediate nonlinear mechanics of polymer nanocomposites under cyclic deformation".POLYMER 200(2020):122529. |
入库方式： OAI收割
来源：理论物理研究所
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