Degreasing Treatment of Tofu Refuse and Mechanical Properties of Its Biodegradable Polymer Composites

作者：Qiu Jianhui^*; Nagoka Hiroshi; Zhang Min; Murata Takuya; Feng Huixia; Kudo Makoto; Kamata Satoru

来源：Kobunshi Ronbunshu, 2008, 65(5): 342-348.

DOI：10.1295/koron.65.342

• Tofu Refuse
• Degreasing Treatment
• Biodegradable Polymer Composites
• Mechanical Properties

Tofu by-product refuse degreasing and the mechanical properties of the obtained biodegradable polymer composites were investigated. The following main results have been obtained. (1) Ethyl alcohol can extract lipids in the tofu refuse. Therefore, the unique smell of soybean composites which are contained in tofu refuse could be suppressed. (2) Increasing the number of degreasing treatments is more effective than increasing mix time. (3) Compared with the composites that contained undegreased tofu refuse, samples containing degreased refuse had higher tensile strength. This is mainly because of the following two reasons, First, the degreasing treatment improved the dispersivity; 8 micron sized tofu refuse particle Second, because the lipid is extracted the tofu refuse surface, enables a better contact surface for cohesion. (4) The tensile strength, flexural strength and impact strength of the composites did not decrease so much, even at a content of tofu refuse of 50%. The reason for thos may be related to the degreasing treatment.

• 出版日期2008
• 单位陕西科技大学; 兰州理工大学