Challeging for the preparation of ultra-thin paper sheet derived from cellulose nanofiber

纤维素纳米纤维制备超薄纸张的挑战

• 批准号: 25660133
• 负责人: SUZUKI Kyoji
• 金额: $ 1.33万
• 依托单位: Shizuoka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2013
• 资助国家: 日本
• 起止时间: 2013-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-25660133/
• 关键词: セルロース; ナノファイバー; キチン; 填料

Microfibril-cellulose and bacterial cellulose consist of nano-level width fibers, therefore, they are called cellulose nano-fiber. In this study bacterial cellulose fiber was selected and ultra-thin sheet-making was investigated. At the sheet making, chitin powder was added as filler. Chitin addition is hopeful for improving opacity of cellulose sheets. N-chlorinated bacterial cellulose was prepared for increasing sheet strength. N-chlorinated bacterial cellulose was prepared by the three step reaction: cyanoethylation, carbamoylethylation and N-chlorination. Each reaction readily proceeded. The dry tensile index of N-chlorinated BC sheet (10 micrometers thickness) was about 1.7 times higher than that of a BC sheet, and the wet tensile strength was about 3.6 times higher. By N-chlorination of BC, I could prepare sheets down to a thickness of 3 micrometers. Opacity of chitin-powder added BC sheet was increased about 10 % comparing to untreated BC sheet.

微纤纤维素和细菌纤维素是由纳米级宽度的纤维组成，因此被称为纤维素纳米纤维。本研究选用细菌纤维素纤维，对超薄切片进行了研究。在抄片时，加入甲壳素粉作为填料。添加甲壳素有望改善纤维素片材的不透明度。制备了N-氯化细菌纤维素以提高纸张强度。通过氰乙基化、氨甲酰乙基化和N-氯化三步反应制备了N-氯化细菌纤维素。每个反应都很容易进行。N-氯化BC片材（10微米厚）的干拉伸指数比BC片材高约1.7倍，湿拉伸强度高约3.6倍。通过对BC进行N-氯化，我可以制备厚度为3微米的片材。与未处理的BC片材相比，添加几丁质粉末的BC片材的不透明度增加约10%。

项目成果

N-クロルバクテリアセルロースの耐水性評価

N-绿细菌纤维素的耐水性评价

• 发表时间: 2013
• 期刊: 日本包装学会誌
• 作者: 知久達哉;鈴木恭治;鮫島一彦
• 通讯作者: 鮫島一彦

N-クロルバクテリアセルロースシートの耐水性評価

N-绿细菌纤维素片的耐水性评价

• 发表时间: 2013
• 期刊: 日本包装学会誌
• 作者: 知久達哉;鈴木恭治;鮫島一彦
• 通讯作者: 鮫島一彦

バクテリアセルロースシートの強度改善とキチン添加効果

细菌纤维素片强度的提高及添加甲壳素的效果

• 发表时间: 2014
• 作者: 鈴木恭治;河合 光;知久達哉;鮫島一彦
• 通讯作者: 鮫島一彦