PREPARATION AND PROPERTIES OF LAPONITE/POLYURETHANE NANOCOMPOSITES
文献类型：期刊论文
| 作者 | Zhang, An-su1,2; Wang, Dong2; Yang, Xiao-li2; Wu, Jun-jie2; Zhu, Cai-zhen2; Yang, Shu-guang1; Ma, Jing-hong1; Xu, Jian1,2 |
| 刊名 | ACTA POLYMERICA SINICA
 |
| 出版日期 | 2013-07-20 |
| 期号 | 7页码:943-948 |
| 关键词 | Polyurethane Laponite Nanocomposites Solvent-exchange Approach Ultrasound |
| ISSN号 | 1000-3304 |
| DOI | 10.3724/SP.J.1105.2013.13004 |
| 英文摘要 | Laponite/polyurethane nanocomposites were successfully prepared by following two steps: (1) solvent-exchange approach to efficiently exfoliate Laponite into N, N-dimethyl acetamide (DMAC) solvent; (2) under ultrasound insert Laponite into polyurethane macromolecules. The structure and properties of the resulting nanocomposites were characterized by transmission electron microscopy (TEM), atomic force microscopy (AFM), thermogravimeric analysis (TGA), differential scanning calorimetry (DSC), thermodynamic mechanical analysis (DMA) and tensile testing. The results of TEM and AFM indicated that the most of Laponite was fully exfoliated into individual layers and uniformly dispersed in the polyurethane matrix. The Laponite platelets preferentially reinforce the hard segments or micro-domains of polyurethane because of the similar characteristic dimensions of Laponite and hard micro-domains and the hydrogen bond interaction,which was also further confirmed by DMA and DSC. The tensile testing results showed that the incorporation of Laponite into PU gave rise to significant improvements in mechanical properties, including tensile modulus, tensile strength and ultimate elongation. The hierarchical order induced by the addition of discotic Laponite platelets creates a percolated network that significantly improves the stiffness and toughness of the nanocomposites without reducing their extensibility. |
| 语种 | 英语 |
| WOS记录号 | WOS:000323400300018 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/53727]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, An-su |
| 作者单位 | 1.Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, An-su,Wang, Dong,Yang, Xiao-li,et al. PREPARATION AND PROPERTIES OF LAPONITE/POLYURETHANE NANOCOMPOSITES[J]. ACTA POLYMERICA SINICA,2013(7):943-948. |
| APA | Zhang, An-su.,Wang, Dong.,Yang, Xiao-li.,Wu, Jun-jie.,Zhu, Cai-zhen.,...&Xu, Jian.(2013).PREPARATION AND PROPERTIES OF LAPONITE/POLYURETHANE NANOCOMPOSITES.ACTA POLYMERICA SINICA(7),943-948. |
| MLA | Zhang, An-su,et al."PREPARATION AND PROPERTIES OF LAPONITE/POLYURETHANE NANOCOMPOSITES".ACTA POLYMERICA SINICA .7(2013):943-948. |
入库方式： OAI收割
来源：化学研究所
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