Achievement of Starch Fiberization Technology

淀粉纤维化技术成果

基本信息

批准号：
07556126
负责人：
ISOGAI Akira
金额：
$ 1.28万
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：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07556126/
关键词：
starch fiber spinning paper bio-degradable inter-fiber bond salt-precipitation recycle 繊維間強度

项目摘要

1) A laboratory-scale apparatus for producing starch fiber was manufactured. This is an apinner which extrudes aqueous starch solution into ca. 40% ammonium sulfate solution by air-pressure. The nozzle diameter was designed to vary from 0.1 to 0.4 mm. Starch fibers were able to be prepared in good reproducibility using this apparatus.2) Preparing conditions for starch fibers were examined in terms of shapes of starch fibers thus obtained. Corn starch gave better fibers than potato starch, although potato starch had higher solubility in hot water. This difference in fiberization behavior and solubility must be due to ratios of amylose and amylopectin in these starch samples. The optimum conditions for starch content in solutions and the nozzle diameter of the apparatus were 10% and 0.4mm, respectively. Further experiments for preparing blend fibers with starch and either other water-soluble polymers or fillers will be carried out in near future to improve characteristics of starch fibers.3) Fundamental properties of handsheets containing 0-40% starch fibers were studied. Although sizing and optical properties of the handsheets fell down to some extent by the addition of the starch fibers, mechanical properties were extremely improved by reinforcing interfiber bonds in handsheets with starch fibers. Accelerated aging tests revealed that deterioration due to acidity of acidic handsheets was prevented to some extent by the addition of starch fibers into handsheets.

1）生产用于生产淀粉纤维的实验室规模设备。这是一个将水溶液溶液挤压到Ca中的Apinner。 40％硫酸铵溶液通过气压溶液。喷嘴直径的设计为0.1至0.4毫米。淀粉纤维能够使用这种设备在良好的可重复性中制备。2）根据获得的淀粉纤维形状检查淀粉纤维的准备条件。玉米淀粉的纤维比马铃薯淀粉更好，尽管马铃薯在热水中的溶解度更高。纤维化行为和溶解度的这种差异必须是由于这些淀粉样品中的淀粉和淀粉蛋白的比率造成的。溶液中淀粉含量和设备的喷嘴直径的最佳条件分别为10％和0.4mm。将在不久的将来进行进一步的实验，以制备用淀粉和其他水溶性聚合物或填充剂进行混合纤维。尽管握手的尺寸和光学性能通过添加淀粉纤维在某种程度上降低了，但通过在带有淀粉纤维的握手中加强插入式键，机械性能得到了极大的提高。加速的老化测试表明，由于将淀粉纤维添加到握手中，由于酸性握手的酸度而降低了。