Development of Super Water Absorbent from Low Quality Cellulosic Materials

利用低品质纤维素材料开发超吸水剂

• 批准号: 10556036
• 负责人: MESHITSUKA Gyosuke
• 金额: $ 8.45万
• 依托单位: THE UNIVERSITY OF TOKYO
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-10556036/
• 关键词: paper; recycled paper; cellulose; water absorbency; water absorbent; reforestation; cross-linking agent; biodegradability; 天然繊維

There are great demands for the super water absorbents in the various fields of disposable soft goods, such as napkins and diapers and in the agricultural and gardening agents. It must be also very useful for the reforestation of desert area and of the area of deteriorated soil conditions. In this research, super water absorbents were tried to develop from cellulosic raw materials. In this case, the water absorbent should have a water retention valtue of several hundreds which is extremely higher value compared to the regular cellulosic water absorbent.As a cellulosic material, bleached hardwood kraft pulp was carboxymethylated and cross-linked with polyethyleneglycol-di-glycidyl ether with different chain length. The highest water retention value obtained was almost 700 (g/g) which was obtained by the two-stages method developed in this study. It was found that a cross-linking agent with a higher chain length is more effective for a higher water retention value of the product.For the practical application to the reforestation, it may be beneficial to further develop a new and more economical cross-linking agent based on the information obtained in this study.

在一次性纺织品的各个领域，如餐巾纸和尿布以及农业和园艺剂中，对超级吸水剂有很大的需求。它也必须是非常有用的沙漠地区和土壤条件恶化的地区重新造林。本研究尝试以纤维素为原料开发高吸水性树脂。以漂白阔叶木硫酸盐浆为纤维素原料，用不同链长的聚乙二醇-二缩水甘油醚进行羧甲基化交联。通过本研究中开发的两阶段方法获得的最高保水值几乎为700（g/g）。结果表明，交联剂的链长越长，产品的保水性越好，为进一步开发新型、经济的交联剂提供了理论依据。

项目成果

Yuehua Xiao, Gyosuke Meshitsuka: "Development of super water absorbent from cellulosic materials : Properties and structure of water absorbent"Japan Tappi Journal. in printing.

肖跃华，Gyosuke Meshitsuka：“纤维素材料超级吸水剂的开发：吸水剂的性能和结构”日本龙飞杂志。

Yuehua Xiao, Gyosuke Meshitsuka: "Development of high retentin water absorbent from cellulosic materials : Water absorbent from bleached kraft pulp"Journal Wood Sci.. in printing.

肖跃华，Gyosuke Meshitsuka：“用纤维素材料开发高保水剂吸水剂：漂白牛皮纸浆的吸水剂”《木材科学》杂志印刷。

Yuehua Xiao,Gyosuke Meshitsuka: "Development of super water-absorbent from cellulosic materials : Properties and structure of water absorbent"紙パルプ技術協会誌、. (in printing).

肖跃华，Gyosuke Meshitsuka：“纤维素材料超吸水剂的开发：吸水剂的性能和结构”纸浆和造纸技术协会杂志（印刷中）。

Yuehua Xiao,Gyosuke Meshitsuka: "Development of high-retention water absorbent from cellulosic materials : Water absorbent from bleached kraft pulp"Journal Wood Science. (in printing).

肖跃华，Gyosuke Meshitsuka：“用纤维素材料开发高保水性吸水剂：漂白牛皮纸浆的吸水剂”《木材科学》杂志。

Yuehua Xiao,Gyosuke Meshitsuka: "Development of super water-absorbent from cellulosic materials : Properties and structure of water absorbent"紙パルプ技術協会誌. (in printing).

肖跃华，Gyosuke Meshitsuka：“纤维素材料超吸水剂的开发：吸水剂的性能和结构”纸浆和造纸技术协会杂志（印刷中）。