DEGRADATION STUDY OF POLYLACTIC ACID COMPOSITES

Authors

  • Mohammad Shahrizad Pairon Department of Biotechnology Engineering, Kulliyyah of Engineering, International Islamic University Malaysia
  • Fathilah binti Ali Department of Biotechnology Engineering, Kulliyyah of Engineering, International Islamic University Malaysia
  • Hazleen Anuar Department of Manufacturing and Materials Engineering, Kulliyyah of Engineering, International Islamic University Malaysia

Keywords:

polylactic acid, alginate, spirulina, biodegradation

Abstract

Plastic composites are suitable materials in the production of a cosmetic patch. It can be used as a matrix to hold the fiber in the composites. The fiber used in the cosmetic patch is an active ingredient that has a good reaction in the skin. However, the plastic material gives irritation and allergic when contacting the skin. Hence, the usage of biodegradable plastic such as Polylactic acid (PLA) replaces the conventional plastic in the plastic composites of the cosmetic patch. PLA has a slow degradation rate, therefore the natural fiber (spirulina and alginate) were used to increase the degradation rate of PLA. The objectives of this project were to study the mechanical properties of the PLA composites, the degradation rate of the PLA composites and to characterize the surface morphology and surface properties of the degraded PLA composites. The selection of the best PLA composites is by the highest Young’s Modulus and Elongation at break value. The samples were then left for microbial degradation. The biodegradability results showed that the spirulina enhanced microbial degradation. However, microbial degradation was not the best degradation method since the disturbance of alginate as a binding agent in the soil give an inconsistent result. Scanning Electron Microscopy images showed that the fiber initiates the degradation in the PLA composites.

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Published

2021-06-24

How to Cite

Pairon, M. S. ., Ali, F. binti, & Anuar, H. . (2021). DEGRADATION STUDY OF POLYLACTIC ACID COMPOSITES. Chemical and Natural Resources Engineering Journal (Formally Known As Biological and Natural Resources Engineering Journal), 5(1), 45–52. Retrieved from https://journals.iium.edu.my/bnrej/index.php/bnrej/article/view/57