Effect of silanecoupling agent on properties of biocomposites based on poly(lactic acid)and durian rind cellulose

Abstract

Abstract. Durian rind cellulose reinforced poly(lactic acid) (PLA) biocomposites were prepared using Brabender internal mixer followed by hot compression molding technique. Cellulose was previously treated by 3-aminopropyltriethoxysilane for improving the compatibility with PLA matrix. The silane-grafting of cellulose was confirmed via Fourier transform infrared spectroscopy (FTIR) with the presence of Si-O-Si, Si-C, and Si-O-C bonds. The silane-treated cellulose was subsequently introduced into PLA matrix, and the effects of cellulose surface modification on mechanical, thermal and morphological properties, and water absorption of biocomposites were studied. It was found that silane-treated cellulose reinforced biocompositeshave superior mechanical properties compared with untreated cellulose reinforced biocomposites. The lowest crystallization temperature of silane-treated biocomposites was confirmed via Differential scanning calorimetry (DSC). Scanning electron microscopy (SEM) investigation also showed that adhesion of cellulose and PLA matrix was improved by modification of cellulosesurfaceusing3-aminopropyltriethoxysilanewhich can result in less water absorption into biocomposites.

Isolation, Modification, and Characterization of Local Indonesia's Sugarcane Bagasse Cellulose for Dye‐Adsorbent Application

“…[6] Natural cellulose fibers are used as a reinforcing base material in thermosetting and thermoplastic cellulose matrices, especially in products using raw glass fiber materials because of their unique characteristics: renewable, low density, and high specific strength. [8] Cellulose exists in most of the biomass of plants in the lingo-cellulosic form. Lignocellulosic has been successfully extracted from various types of biomass, such as rice straw, sago pulp, oil palm, and sugarcane bagasse.…”

“…Some of the uses of cellulose include paper manufacture, food as a stabilizer, [6] anti‐caking agent, suspending agent, and packaging, [7] adsorbent, flow‐ability, and innovative composite applications [6] . Natural cellulose fibers are used as a reinforcing base material in thermosetting and thermoplastic cellulose matrices, especially in products using raw glass fiber materials because of their unique characteristics: renewable, low density, and high specific strength [8] …”