A comparison of chemical treatments for surface modification of rice straw before use as reinforcement material in wood polymer composites

Name: Phanthila Papimon

Organization : Naresuan University. Faculty of Engineering

Email : phanthilap61@nu.ac.th

Name: Piyanan Boonphayak

Organization : Naresuan University. Faculty of Engineering

Email : piyananb@nu.ac.th

Name: Sirikarn Khansumled

Organization : Naresuan University. Faculty of Engineering

Email : sirikarnk@nu.ac.th

keyword: Wood Polymer Composite

LCSH: Rubber -- Reinforcement

LCSH: Chemical processes

LCSH: Rice straw

Abstract: Thailand’s production of rice remains a major factor in global rice supplies. Thailand grows this crop in all regions of the country. Additionally, it generates a tremendous amount of agricultural rice straw waste, 56 million metric tons, in 2020. Most farmers simply burn the rice straw, which causes local severe air pollution issues from PM2.5 particles. Other kinds of environmental damage are caused by cutting forests to meet the high demand for wood in the construction and furniture industries. Modern artificial wood materials provide a practical and attractive alternative to the use of natural wood and thereby reduce the cutting of forests. The purpose of the current study the effect of various surface modifications on the chemical, mechanical and morphological properties of wood polymer composites (WPC) prepared from low-density polyethylene reinforced by rice straw fiber. The rice straw fibers were modified with three chemical treatment agents: silane A-137, maleic anhydride-grafted-polyethylene (MAPE), and the cellulase enzyme. Rice straw fiber was successfully incorporated into WPC as a reinforcement material, and the experimental results indicated that both the A-137 and the MAPE agents improved the tensile and flexural properties of the WPC, while cellulase enzyme did not. Moreover, MAPE showed a more significant effect on mechanical properties enhancement than silane A-137. In addition, FTIR showed the IR specter of the polysiloxane and ester linkage from the reaction between fiber with silane A-137 or with MAPE, respectively. Morphology of WPC from SEM technique showed that the use of the MAPE and silane A-137 improved the interfacial adhesion between the matrix and the reinforcement. The data indicated that MAPE could be an effective fiber modification method for fiber-reinforced composite

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2022

Modified: 2022-12-13

Issued: 2022-12-13

BibliograpyCitation : In Naresuan University. The 31st Thai Institute of Chemical Engineering and Applied Chemistry Conference (TiCHE 2022) (pp.86-99). Phitsanulok : Naresuan University

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