Mechanical Properties of Jute/PLA SandwichCompositeswith Corrugated Board as a Core Layer

• Main Authors: YI-TING LIN, 林怡亭
• Other Authors: Jieng-Chiang Chen
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/81122067553763367542

碩士 === 萬能科技大學 === 材料科技研究所 === 100 === The main objective of this thesis was to study the mechanical characteristics of jute/PLA sandwich composites with a corrugated board as a core layer. The core layer composites were made with corrugated board and polylactic acid. The core layer composites were then stacked with jute fabrics and PLA films on the top and bottom surfaces to fabricate sandwich composites. Two composites (the corrugated board reinforced PLA composites and jute /PLA sandwich composites with the corrugated board as a core layer) were developed in the current study. For the manufacturing of corrugated board reinforced PLA composite core layer, a dipping bath was used to impregnate the corrugated boards with melting solution. For sandwich composites, resin film method and hot press with mold were used to produce the jute /PLA sandwich composites with the corrugated board as a core layer. A material test system (MTS810) was used to study the tensile, compressive, bending properties of the composites. Furthermore, an IZOD impacting instrument was used to examine the impacting characteristics of the composites. Experimental results revealed that both the corrugated board reinforced PLA composites, and jute fabric/PLA sandwich composites have well reinforced efficient. The tensile and compressive modulus of the corrugated board reinforced PLA composites were 144.8% and 6329.7% higher than that of the pure corrugated board, respectively. For the core layer composites, the proper content of the corrugated board was 32%. The tensile and compressive moduli of jute /PLA sandwich composites with the corrugated board as a core layer was 41.5% and 635.3% higher than that of the corrugated board reinforced PLA composites, respectively. The proper content of fiber and board for the sandwich composite was 26%. Both the corrugated board reinforced PLA composites and the jute fabric/PLA sandwich composites with the corrugated board as a core layer reinforcements increase the energy absorption capacity while impacting test.