Influence of Filler Surface Modification on Static and Dynamic Mechanical Responsesof Rice Husk Reinforced Linear Low-Density Polyethylene Composites

Archives of Metallurgy and Materials

article

Mohd Firdaus Omar¹  Mohd Mustafa Al Bakri Abdullah¹  Sam Sung Ting¹  B. Jeż³  M. Nabiałek³  Hazizan Md Akil⁴  Nik Noriman Zulkepli¹  Shayfull Zamree Abd Rahim¹  Azida Azmi² 

[1] Universiti Malaysia Perlis ,(UniMAP),Centre of Excellent Geopolymer & Green Technology;Universiti Malaysia Perlis ,(UniMAP), Faculty of Chemical Engineering Technology;Częstochowa University of Technology, Faculty of Mechanical Engineering and Computer Science;Universiti Sains Malaysia, School of Materials and Mineral Resources Engineering

关键词: Silane coupling agents;    Strain rate;    Universal testing machine;    Split Hopkinson Pressure Bar;    Strain rate sensitivity;   

DOI  :  10.24425/amm.2022.137784

学科分类：物理（综合）

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

Filler surface modification has become an essential approach to improve the compatibility problem between natural fillers andpolymer matrices. However, there is limited work that concerns on this particular effect under dynamic loading conditions. Therefore,in this study, both untreated and treated low linear density polyethylene/rice husk composites were tested under static (0.001 s–1,0.01 s–1 and 0.1 s–1) and dynamic loading rates (650 s–1, 900 s–1 and 1100 s–1) using universal testing machine and split Hopkinsonpressure bar equipment, respectively. Rice husk filler was modified using silane coupling agents at four different concentrations(1, 3, 5 and 7% weight percentage of silane) at room temperature. This surface modification was experimentally proven by Fouriertransform infrared and Field emission scanning electron microscopy. Results show that strength properties, stiffness properties andyield behaviour of treated composites were higher than untreated composites. Among the treated composites, the 5% silane weightpercentage composite shows the optimum mechanical properties. Besides, the rate of sensitivity of both untreated and treated composites also shows great dependency on strain rate sensitivity with increasing strain rate. On the other hand, the thermal activationvolume shows contrary trend. For fracture surface analysis, the results show that the treated LLDPE/RH composites experiencedless permanent deformation as compared to untreated LLDPE/RH composites. Besides, at dynamic loading, the fracture surfaceanalysis of the treated composites showed good attachment between RH and LLDPE.

【 授权许可】

CC BY-NC