Comparison of Morphology and Mechanical Properties of Polyoxymethylene/Cellulose and Poly(Lactic Acid)/Cellulose Composites

Abstract

The objective of this study is to fabricate the polyoxymethylene (POM)/microcrystalline cellulose (MCC) and poly(lactic acid) (PLA)/MCC composites, and to compare the effect of MCC on the morphology and mechanical properties of POM and PLA. The polymer composites were prepared by melt mixing in an internal mixer and molded by compression molding. The MCC concentrations were 1, 3, 5, 7, 10, 15 and 10% by weight. From scanning electron microscopy study observes the fracture surface of POM and PLA composites is much rough and the roughness increases with increasing MCC content. This observation indicates MCC induces the ductile fracture characteristic of POM and PLA. The addition of MCC can improve the impact strength of PLA composite and improve Young’s modulus of both POM and PLA composites. While the tensile strength and strain at break decrease after adding MCC. In summary, MCC can enhance the morphology and mechanical properties of PLA composites is better than POM composites.

Morphology and Properties of Poly(Lactic Acid)/Ethylene Propylene Diene Monomer Blends with Micro-Cellulose Fibers from Paper Pulp

“…The monomer of PLA can be received from renewable natural sources such as corn and cassava [1]. PLA has good properties of strength and modulus, high transparency, biocompatibility, and easy processability [2,3]. Although the PLA has many advantages, it has brittleness and low thermal properties [4].…”

Tribo‐mechanical properties of composites based on polyoxymethylene reinforced with basalt fiber andsilicon carbidewhiskers

“…[ 11 ] The natural fibers (NF) inserted in POM matrix composites were cellulose fibers, jute fibers, eucalyptus, kenaf, and wood. [ 12–19 ] Each modification was aimed to develop mechanical, thermal, or tribological properties and was used to obtain an alternative to artificial fibers such as glass, aramid, or carbon fibers. [ 9, 20–25 ] Basalt fibers (BF) are defined as mineral fibers or a new type of NF.…”