The effect of corn stalk fiber loading on tensile properties and absorption ability on polybutadiene adipate terephalate composite.

Abstract

The natural fiber have recently become attractive and been widely used as reinforcement material to replace synthetic fiber as a concern to environmental issue. However, there are some of natural fiber unable to perform well as reinforcement material due to their natural properties. In this research study, the corn stalk fiber was selected as natural fiber reinforced with polybutadiene adipate terephalate (PBAT) to form bio-composite materials. There are two type of PBAT used which are in pellets form and powder form. The objectives of using different type of PBAT are to identify their compatibility with filler and the dispersion of corn stalk fiber in both forms of matrix. Then, the both type of PBAT also compounded with difference loadings of corn stalk fiber. Lastly, their effect on tensile properties and absorption ability were identified. After the test is run, the composite of neat PBAT in powder form shows highest tensile strength and elongation at break but lowest in water absorption percentage compared to others. However, the composition of pellets PBAT with 30wt% of corn stalk fiber shows highest percentage of water absorption compared to others.

Effect of large sized reed fillers on properties and degradability of PBAT composites

“…[ 31,34,35,39,45,47,54–63 ] (B) Comparison of tensile strength and elongation of PBAT composites in our study and literature. [ 36,41,47,54,62,64,65 ]…”

“…It leads to the limited increase of mechanical properties of PBAT composites. As reported in many references, [ 35–39 ] the tensile modulus and strength of PBAT composites with powdered biomass fillers are lower than 300 MPa and 10 MPa. Besides the powdered biomass fillers, partial literature [ 40–42 ] reported the enhancement of PBAT with biomass filler at a relatively large size (microfibril structure and close to millimeter level).…”

“…Figure 3B compares this study's tensile strength and elongation and those reported in the literature. [36,41,47,54,62,64,65] Even if the incorporation of large-sized reeds also caused a decrease in the toughness of the PBAT material, it appears to maintain a higher toughness than powder-filled composites. The excellent overall mechanical properties provided a promising application for composites in profiles and other applications.…”

“…[31,34,35,39,45,47,[54][55][56][57][58][59][60][61][62][63] (B) Comparison of tensile strength and elongation of PBAT composites in our study and literature. [36,41,47,54,62,64,65] patterns of PBAT and its composites. Five characteristic diffraction peaks of PBAT are present on the (011), (010), (110), (100), and (111) planes at 16.0 , 17.5 , 20.7 , 23.1 , and 24.8 .…”

Biodegradable compatibilizer modified corn stover/poly(butylene adipate‐co‐terephthalate) composites

“…34 Additionally, the type of polymer may affect the properties of corn stalk fiber filled composites, and the composite produced by PBAT powders exhibits higher mechanical strength and toughness but weaker water absorption than that produced by PBAT pellets. 35 In our previous study, the influence of particle content and size of CS fillers on the structure and properties of PBAT based biocomposites were studied, and the results imply that the decrease in the content and size of CS fillers is helpful for the uniform particle dispersion and thus the improvement of the thermostability and mechanical strength of composites. 36 CS contains polarized hydroxyl groups from its main component cellulose, thus leading to its poor wetting by the hydrophobic PBAT matrix.…”