Super tough bentonite/SiO2-based dual nanocomposite hydrogels using silane as both an intercalator and a crosslinker
文献类型：期刊论文
| 作者 | Yu, Lina1; Wang, Di1; Tan, Yun2; Du, Juan1; Xiao, Zhixin1; Wu, Ronglan1; Xu, Shimei2; Huang, Jianbin1,3 |
| 刊名 | APPLIED CLAY SCIENCE
 |
| 出版日期 | 2018-05-01 |
| 卷号 | 156页码:53-60 |
| 关键词 | Nanocomposite Sol-gel Preparation Bentonite Intercalation Silane |
| ISSN号 | 0169-1317 |
| DOI | 10.1016/j.clay.2018.01.026 |
| 英文摘要 | A new dual nanocomposite hydrogel with excellent mechanical properties have been developed by sol-gel reaction of vinyl triethoxysilane (VTES) and in situ radical polymerization of acrylamide (AM) and VTES in the dispersion of Bentonite (Bent). Unlike conventional cationic surfactant intercalators, VTES was used as both an intercalator and a crosslinker. Good intercalation and exfoliation were confirmed by transmission electron microscopy (TEM) and X-ray diffraction (XRD) results. The covalent interaction between Bent and silica by condensation of VIES was confirmed by Fourier transform infrared spectroscopy (FTIR) and Si-29 solid-state NMR. The compressive stress of the gel reached up to 4.65 MPa with ha huge fracture energy of 6285.59 J m(-2) (water content of 85 wt%). The gel showed a high cross-linking density of 77.17 mol m(-3) by dynamic viscoelastic measurement. The compressive stress increased to above 25 MPa when the water content decreased to 50 wt%. In the tough nanocomposite hydrogel, the nano-scaled SiO2 was covalently bonded to intercalated or exfoliated Bent and polymer chains, and thus greatly improved the mechanical properties of the gel |
| 语种 | 英语 |
| WOS记录号 | WOS:000430620800007 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/46065]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wu, Ronglan; Xu, Shimei |
| 作者单位 | 1.Xinjiang Univ, Key Lab Oil & Gas Fine Chem, Minist Educ & Xinjiang Uyghur Autonomous Reg, Coll Chem & Chem Engn, Urumqi 830046, Peoples R China 2.Sichuan Univ, Coll Chem, Chengdu 610064, Sichuan, Peoples R China 3.Peking Univ, BNLMS, Coll Chem & Mol Engn, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Lina,Wang, Di,Tan, Yun,et al. Super tough bentonite/SiO2-based dual nanocomposite hydrogels using silane as both an intercalator and a crosslinker[J]. APPLIED CLAY SCIENCE,2018,156:53-60. |
| APA | Yu, Lina.,Wang, Di.,Tan, Yun.,Du, Juan.,Xiao, Zhixin.,...&Huang, Jianbin.(2018).Super tough bentonite/SiO2-based dual nanocomposite hydrogels using silane as both an intercalator and a crosslinker.APPLIED CLAY SCIENCE,156,53-60. |
| MLA | Yu, Lina,et al."Super tough bentonite/SiO2-based dual nanocomposite hydrogels using silane as both an intercalator and a crosslinker".APPLIED CLAY SCIENCE 156(2018):53-60. |
入库方式： OAI收割
来源：化学研究所
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