Synthesis, characterization and water-absorption behavior of tartaric acid-modified cellulose gel fromcorn stalk pith
文献类型：期刊论文
| 作者 | Tan, Tian; Zhou, Jiali; Gao, Xin; Tang, Xiaoning; Zhang, Heng |
| 刊名 | INDUSTRIAL CROPS AND PRODUCTS
 |
| 出版日期 | 2021 |
| 卷号 | 169 |
| 关键词 | SUPERABSORBENT HYDROGELS CROSS-LINKING SOLVENT ABSORBENTS RETENTION REMOVAL POLYMER IONS |
| 英文摘要 | The eco-benign water-absorbent gel was obtained by modification of tartaric acid (TA) onto parenchyma cellulose from corn stalk pith (CSP) in N, N-dimethylacetamide (DMAc)/LiCl system. The water affinity of the gel was aided with TA as both grafting agent and cross-linker via esterification. The degree of swelling was strongly influenced by TA amount, reaction temperature and duration, and the absorbency of TA-esterified product reached up to about 417 g H2O/g dry gel. The three-dimensional macro-porous structures of the bio-absorbent led to fast penetration and diffusion of water into gel. Studies of absorption behavior in deionized water showed that the initial water uptake followed the non-Fickian mechanism, the Schott second-order equation governed the swelling kinetics, and the later part of swelling was relaxation of polymer chains. FTIR and X-ray diffraction analyses confirmed successful modification of TA molecules onto cellulose chains through the formation of ester bonds and transition of crystalline forms from cellulose I to cellulose II. Moreover, thermogravimetric outcomes illustrated the thermal resistance of the TA-esterified gel with a loose structure was lower than SCP cellulose. This work designed a green water-absorbent that could be potentially utilized as favorable water retention material in agriculture and horticulture. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21446]  |
| 专题 | 2021专题_期刊论文 |
| 作者单位 | 1.Tang, XN (corresponding author), Kunming Univ Sci & Technol, Fac Chem Engn, Kunming 650500, Yunnan, Peoples R China. 2.Gao, X |
| 推荐引用方式 GB/T 7714 | Tan, Tian,Zhou, Jiali,Gao, Xin,et al. Synthesis, characterization and water-absorption behavior of tartaric acid-modified cellulose gel fromcorn stalk pith[J]. INDUSTRIAL CROPS AND PRODUCTS,2021,169. |
| APA | Tan, Tian,Zhou, Jiali,Gao, Xin,Tang, Xiaoning,&Zhang, Heng.(2021).Synthesis, characterization and water-absorption behavior of tartaric acid-modified cellulose gel fromcorn stalk pith.INDUSTRIAL CROPS AND PRODUCTS,169. |
| MLA | Tan, Tian,et al."Synthesis, characterization and water-absorption behavior of tartaric acid-modified cellulose gel fromcorn stalk pith".INDUSTRIAL CROPS AND PRODUCTS 169(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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