Malaysian Journal of Analytical Sciences Vol 18 No 3 (2014): 612 - 617

 

 

 

PREPARATION AND CHARACTERIZATION OF TAPIOCA STARCH FILLED POLYCAPROLACTONE COMPOSITE FILMS

 

(Penyediaan dan Pencirian Filem Komposit Polikaprolakton Terisi Kanji Ubi Kayu)

 

Nurulhusna Azmi*, Aznizam Abu Bakar, Sani Amril Samsudin, Nur Azmyra Abdul Aziz

 

Enhance Polymer Research Group (EnPRO), Faculty of Chemical Engineering,

Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia

 

*Corresponding author: husna.azmi89@gmail.com

 

 

Abstract

This research was conducted to develop a new biodegradable polymeric packaging material to replace the current polymer packaging without changing the requirements properties. Polycaprolactone (PCL) was chosen as the matrix because of its biodegradability characteristics. Tapioca starch was used as filler from 10 to 40 wt% loading contents. The composite films were prepared using solvent casting technique and chloroform was used as solvent to dissolve the PCL pellets. The PCL matrix showed result of higher tensile strength which was 65.9 N/mm² with elongation at break at approximately 731%.  The addition of starch in the PCL composite films increased the tensile modulus of the films. The tensile strength of the composite films decreased with increasing starch contents. Similar trends were also observed for elongation at break of the films.

 

Keywords: polycaprolactone (PCL), tapioca starch, casting films, biodegradable, polymer packaging

 

Abstrak

Kajian ini telah dijalankan bagi menghasilkan produk baru untuk menggantikan pembungkus plastik yang sedia ada dengan plastik mesra alam tanpa mengubah kriteria dan ciri-ciri yang diperlukan. Polikaprolakton (PCL) dipilih sebagai matrik kerana cirinya yang boleh terurai secara semulajadi. Kanji digunakan sebagai pengisi didalam komposit filem dari 10 hingga 40 wt%. Komposit ini telah disediakan dengan menggunakan teknik tuangan ke dalam acuan dan klorofom digunakan sebagai bahan pelarut untuk melarutkanpelet PCL. Matrik PCL menunjukkan kekuatan tegangan yang tinggi iaitu 65.9 N/mm² dengan pemanjangan pada ketika putus lebih kurang 731%. Penambahan kanji didalam PCL meningkatkan modulus tegangan komposit filem. Didapati kekuatan tegangan komposit filem semakin menurun dengan penambahan kanji. Corak yang sama juga dapat dilihat pada pemanjangan filem pada ketika putus.

 

Keywords: polycaprolactone (PCL), kanji ubi kayu, filem casting, biodegradasi, pembungkusan polimer

 

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