Malaysian Journal of Analytical
Sciences Vol 22 No 3 (2018): 429 - 434
DOI:
10.17576/mjas-2018-2203-07
MECHANICAL PROPERTIES OF BIOPLASTIC FROM JACKFRUIT
SEED FLOUR AND POLYPROPYLENE
(Sifat Mekanikal Bioplastik daripada Tepung Biji Nangka
dan Polipropelina)
Fairuzdzah
Ahmad Lothfy*, Asiah Mohd Nor, Syamsyir Akmal Senawi, Nur Sha'adah
Zainuddin, Nur Aina Shuhada Norzeri, Nur Yasmin Sahira Saifful Bahri, Puteri Elyana Natasa Mohmad Azmi, Aliya Nuharissa Kamaruzaman
Faculty of
Applied Sciences,
Universiti Teknologi
MARA Pahang, 26400 Bandar Tun Razak Jengka, Pahang, Malaysia
*Corresponding
author: fairuzdzah@pahang.uitm.edu.my
Received: 4
December 2016; Accepted: 1 December 2017
Abstract
In this study, the bioplastic was
successfully fabricated from jackfruit seed flour/polypropylene blend.
Nowadays, the plastic used are originally from petroleum, in which is limited
resources and non-degradable polymer that causes environmental problem. The
jackfruit (Artocarpus heterophyllus)
has been commercially produced in the farming industry. Approximately 8 to 15 %
of jackfruit are mostly thrown after consumption. Thus it can be used as the
value added product development for future demand. In this study, the jackfruit
seeds flour was plasticized by using glycerol, and blended with different
ratios of polypropylene. The mechanical properties such as tensile strength,
strain at break, flexibility and water absorption of fabricated bioplastic were
investigated. The tensile strength and strain at break decreased with
increasing of jackfruit seed flour content, while Young’s Modulus increased
with the jackfruit seed flour content increased. Addition of polypropylene
demonstrated higher water resistant ability. The jackfruit seed can be a new
resource of bioplastic that could be preserved as a petrochemical resource and
reduces the environmental impact.
Keywords: bioplastic, jackfruit seed, mechanical
properties, polypropylene, water absorption
Abstrak
Dalam kajian ini, bioplastik berjaya dihasilkan dari campuran tepung biji nangka/polipropilena. Kini, plastik yang digunakan berasal daripada petroleum, di mana sumber yang terhad dan polimer yang tidak boleh degradasi yang menyebabkan masalah kepada alam sekitar. Buah nangka (Artocarpus heterophyllus) telah dihasilkan secara komersil dalam industri pertanian. Kira-kira 8 hingga 15% daripada nangka dibuang selepas penggunaan. Oleh itu, ia boleh digunakan sebagai nilai tambah produk untuk permintaan masa depan. Dalam kajian ini, tepung biji nangka telah diplastikkan dengan menggunakan gliserol, dan dicampur dengan polipropilena dengan nisbah yang berlainan. Sifat-sifat mekanik seperti kekuatan tegangan, ketegangan pada rehat, fleksibiliti dan penyerapan air bioplastik dikaji. Kekuatan tegangan dan ketegangan pada rehat menurun dengan peningkatan kandungan tepung biji nangka, sementara Modulus Young meningkat dengan kandungan tepung biji nangka meningkat. Penambahan polipropilena menunjukkan keupayaan tahan air yang lebih tinggi. Biji nangka dapat menjadi sumber bioplastik baru yang dapat dipelihara sebagai sumber petrokimia dan mengurangkan kesan kepada persekitaran.
Kata kunci: bioplastik, biji nangka, sifat mekanik, polipropilena,
penyerapan air
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