Fabrication of Bio-Composites From Sugarcane Bagasse Cellulose and Poly(Lactic Acid): Published online: 22/10/2025

Journal of Technical Education Science - Trang - 2025
Nguyen Hong Nhu Pham1, Van Tai Pham1, Phuong Dong Bui1, Thanh Huy Nguyen2, Bui Anh Duy Nguyen2, Thi Thuy Giang Bach3, Chi Thanh Nguyen1
1Ho Chi Minh City University of Technology and Education, Vietnam
2Ho Chi Minh City University of Technology (HCMUT), VNU-HCM, Vietnam
3Nong Lam University, Ho Chi Minh City, Vietnam

Tóm tắt

The development trend of green materials based on agricultural waste combined with biodegradable polymers such as PLA, PVA, starch, and chitosan has significantly advanced in recent decades. This trend was driven by the rapid increase in plastic waste and agricultural biomass, which have had substantial negative impacts on the environment and human health. This study aimed to extract cellulose fibers from sugarcane bagasse as a reinforcing agent for PLA-based bio-composites. Scanning electron microscopy (SEM) analysis results showed that the extracted cellulose fibers had smooth surfaces and were relatively well dispersed in the PLA matrix. Infrared spectroscopy (FTIR) analysis technique showed that the chemical structure of cellulose fibers unchanged after chemical treatment and the effective removal of amorphous components. X-ray diffraction analysis showed a type I cellulose crystalline structure of the extracted cellulose fibers with a crystallinity index of 63.71%. Thermal gravimetric analysis identified three stages of weight loss for the extracted cellulose fibers: below 120 oC, from 120 oC to 380 oC, and above 380 oC. The analysis results of mechanical properties of bio-composites indicated that upon incorporation of cellulose at loading ranging from 0.1% to 0.5%, the mechanical performance of the bio-composites decreased compared to that of neat PLA.

Từ khóa

#Agricultural biomass #Sugarcane bagasse #Cellulose fibers #Bio-composite #Polylactic acid

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