Investigation of Rice as an Absorbent and Degradable Material for Personal Hygiene Applications. SM Journal of Engineering Sciences, January 2016.
Authors: Jeffrey S Bates, Megan A Adams and Taylor D Sparks
This research explores the uses of natural materials in personal hygiene applications. In order to maximize the use of materials for personal hygiene, they must be absorbent, but should also be biodegradable to minimize their impact on the environment. Rice was prepared for testing by increase the porosity.
The material was ground into three size distributions and tested to determine its ability to absorb moisture under both ambient and body temperatures. Research goals address the percentage of moisture absorbed by weight, the absorption as a function of temperature, and the optimal particle size required for the selected application.
Results indicate that the amount of moisture absorbed by the material increases as the temperature approaches body temperature. Furthermore, the time required for the material to reach equilibrium, as also defined by the amount at which the material will no longer absorb moisture, varies by particle size.