Improving Fiber-Matrix Compatibility by Surface Modification of Coconut Coir Fiber Using White Rot Fungi

Hairul Arsyad; Lukmanul Hakim Arma; Muhammad Syahid; Muhammad Try Putra

doi:10.4028/p-86979u

Paper Titles

Preface

Control of the Deformation Mode of Aluminum Foam-Filled Tubes as a Function of Foam Porosity
p.3

Crashworthiness Analysis of Vehicle Crash-Box Filled with Aluminium Foam
p.13

Improving Fiber-Matrix Compatibility by Surface Modification of Coconut Coir Fiber Using White Rot Fungi
p.19

Ramie Fiber Woven Composite: The Effect of Feedrate Variation on the Tensile Strength of the Open Hole in the Drilling
p.27

Mathematical Model of Shear Stress Transfer at Fiber-Matrix Interface of Composite Material
p.35

Study on the Mechanical Properties and Behavior of Corrugated Cardboard under Tensile and Compression Loads
p.45

Modification of Polyester Properties through Functionalization with PVA
p.57

Cellulosic Textile Materials Functionalization with Formic Acid and Improvement of their Properties
p.75

HomeMaterials Science ForumMaterials Science Forum Vol. 1092Improving Fiber-Matrix Compatibility by Surface...

Improving Fiber-Matrix Compatibility by Surface Modification of Coconut Coir Fiber Using White Rot Fungi

Abstract:

Compatibility between elements in natural fiber based-composite always becomes a hot issue. The presence of lignin in natural fibers inhibits interlock with its matrix. This research investigates the degradation of lignin encapsulating coconut coir fiber using white-rot fungus (Pleurotus Ostreatus) and its effect on composite compatibility. The process of delignification was carried out by exposing coconut coir fibers in the media where the white-rot fungus was incubated and grown. The period of exposure was 10, 20, and 30 days, and the ratio of coconut coir fiber to white-rot fungi were 1:1, 1:1.5, and 1.5:1 (by weight). To find the effect of delignification, several tests were conducted namely lignin content, fiber surface morphology, wettability, and pull-out tensile test. The results show that there is a reduction in the lignin content of the fibers. The largest reduction is 27.11% for 30 days of exposure times with the ratio of 1:1.5. The surface morphology of the fibers is smoother due to the loss of lignin. In the wettability test, it is found a decrease in the contact angle between the fibers and the resin. In line with that, the pull-out tensile test reveals a double increase in the IFSS value reaching 115.54%. This significant improvement might be due to the interlocking ability contributed by surface modification of the fibers. Since this chemical-free treatment promotes good composite compatibility, it might be introduced as an environmentally friendly treatment in the production of natural fiber based-composites