Abstract
Hybrid composite panels of Wood-Plastic Composites (WPC) consisting of wood and poly (methyl methacrylate) (PMMA) were reinforced with alumina particles and made by ?hot pressing? method. Alumina-based particles were made by sol-gel technique. The particles were characterized by the X-ray diffraction (XRD). The resulting alumina particles were modified with (3mercaptopropyl) trimethoxysilane (MPTMS), in order to obtain better mechanical properties of the composite relative to the composite with unmodified alumina particles. The aim of this work was to study the influence of composite structure and the moisture absorption on bending and the impact properties of the hybrid composite. The bending and impact tests revealed that modulus of elasticity and absorbed energy of deformation increased with modification of alumina and slightly decrease after moisture absorption.
Highlights
Along with the development and increasing use of bioplastic composite materials, there was a need for various mechanical improvements
The aim of this work was to study the influence of composite structure and the moisture absorption on bending and the impact properties of the hybrid composite
Spectrums of PMMA-wood-modified with (3mercaptopropyl) trimethoxysilane (MPTMS) show peaks of 1070, 1039 and 994 cm-1 assigned to the Si–O–H and Si–O–Si groups [21]
Summary
Along with the development and increasing use of bioplastic composite materials, there was a need for various mechanical improvements. Alumina particles prepared by different techniques have been used as reinforcements in order to improve particular properties of composite structures [1,2,3]. Hybrid wood-plastic composites (WPC) with biodegradable natural fibers have many advantages, such as low density, high specific strength value, good impact and flexural properties. They are eco-friendly and have costeffective processability [4]. For the preparation of composites, wood fibers and particles are commonly used (as) biodegradable materials in thermoplastic polymer matrices. They have found application in various industrial fields, such as civil engineering, interior and exterior design and present excellent alternatives to inorganic fiber polymer composites. The creep behavior of WPC originates from their viscoelastic nature [10] and depends on
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