สำหรับแผ่นการศึกษาค่าพารามิเตอร์ที่เหมาะสมอัดเศษวัสดุธรรมชาติ

Abstract

This research aims to optimize the parameters for the natural waste material board forming. Three types of the natural waste materials have been used in this work including corn husk, water hyacinth and rice straw. The strengthen materials of each the natural waste material are cassava flour, saw dust and rice husk for corn husk, water hyacinth and rice straw. Two parameters were used in this study including mixture ratio and compressive force which were categorized as independent variable. From preliminary experimental results, the obtained fiber boards are good forming with no crack after dried at 0−30 weight percentage of the strengthen materials. From statistical analysis, the compressive force and the mixture ratio effect on the compressive and bending strength properties of the received boards. From the results, the corn husk board has the highest compressive strength with 30 ton of forming compressive force at 92:8 mixture ratio of the corn husk and the cassava flour. The predicted compressive strength value from regression analysis is 1,204.77 newton per square millimeter. The water hyacinth board gave the highest bending strength with the suitable forming compressive force at 30 ton and the mixture ratio of the water hyacinth and the rice husk at 92:8. The regressive equation analysis presents the highest predicted bending strength property value at 218.03 newton per square millimeter. Therefore, the produced boards from corn husk and water hyacinth are more appropriate than the rice straw board in compressive and bending application. Hence, in utility, the board type determination should consider the environment and force which react on it. Finally, this project can be a guideline on the natural material waste board forming and can be used as the data base for development further in the future.