Rice straw reinforce poly (latic acid) biopolymer. mechanical and thermal properties / Shuhaila Saindin

Poly(lactic) acid is currently a most potential and popular polymeric material, which will play a key role in building of a sustainable bioeconomy. Knowledge of biodegradation of PLA is crucial for treating plastic wastes and easing the serious energy crisis. The biodegradability of Poly(lactic) aci...

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Main Author:	Saindin, Shuhaila
Format:	Thesis
Language:	English
Published:	2020
Subjects:	Organic chemistry
Online Access:	https://ir.uitm.edu.my/id/eprint/34244/1/34244.pdf
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spelling	my-uitm-ir.342442020-09-14T09:31:46Z Rice straw reinforce poly (latic acid) biopolymer. mechanical and thermal properties / Shuhaila Saindin 2020-09-02 Saindin, Shuhaila Organic chemistry Polymers. Macromolecules Poly(lactic) acid is currently a most potential and popular polymeric material, which will play a key role in building of a sustainable bioeconomy. Knowledge of biodegradation of PLA is crucial for treating plastic wastes and easing the serious energy crisis. The biodegradability of Poly(lactic) acid based on microorganisms (bacteria and fungus) and biochemical processes of degradation have been advanced in recent years. However, using 100 percent amount of Poly(lactic) acid to produce a plastic film need high cost and the plastic film tend to be brittle. Addition of natural fibre which is rice straw has reduced the cost as well as enhanced the strength of the film. The objectives of this study is to fabricate biopolymer Poly(lactic) acid reinforced with various ratio of RS namely 0, 10, 20, 30, and 40 (% w/w). Other than that, the aim of this study is to investigate thermal and mechanical properties of PLA/RS biopolymer by various testing such as Fourier Transform Infrared Analysis (FTIR), Differential Scanning Calorimeter (DSC), tensile, and water absorption test and as well as to analyse biodegradability of PLA/RS biopolymer by soil-degradability test. The result of FTIR distinctly showed that bonding of hydrogen present between the polymers can increase the toughness of the film. This bonding is presented at frequency 2996 cm-1 and 3500cm-1 which contributed to the hydrogen bonding. In this research the optimum fibre loading is 10% because it the higher value of tensile strength among others which is 15.11MPa. Other than that, the percent crystallinity of film with optimum rice straw fibre content is higher than neat Poly(lactic) acid film which is 253.80% as compared to 133.13%. The PLA/RS film also can withstand under modest to high temperature with the highest melting temperature (Tm) at 59.64°C and optimum glass temperature (Tg) at 152.08°C. Besides, the percentage of water intake of PLA/RS increased gradually with increment of RS fibre through the hydrophobicity property in RS fibre was lead to improvement in biodegradation. 2020-09 Thesis https://ir.uitm.edu.my/id/eprint/34244/ https://ir.uitm.edu.my/id/eprint/34244/1/34244.pdf text en public degree Universiti Teknologi Mara Perlis Faculty of Applied Sciences
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
topic	Organic chemistry Organic chemistry
spellingShingle	Organic chemistry Organic chemistry Saindin, Shuhaila Rice straw reinforce poly (latic acid) biopolymer. mechanical and thermal properties / Shuhaila Saindin
description	Poly(lactic) acid is currently a most potential and popular polymeric material, which will play a key role in building of a sustainable bioeconomy. Knowledge of biodegradation of PLA is crucial for treating plastic wastes and easing the serious energy crisis. The biodegradability of Poly(lactic) acid based on microorganisms (bacteria and fungus) and biochemical processes of degradation have been advanced in recent years. However, using 100 percent amount of Poly(lactic) acid to produce a plastic film need high cost and the plastic film tend to be brittle. Addition of natural fibre which is rice straw has reduced the cost as well as enhanced the strength of the film. The objectives of this study is to fabricate biopolymer Poly(lactic) acid reinforced with various ratio of RS namely 0, 10, 20, 30, and 40 (% w/w). Other than that, the aim of this study is to investigate thermal and mechanical properties of PLA/RS biopolymer by various testing such as Fourier Transform Infrared Analysis (FTIR), Differential Scanning Calorimeter (DSC), tensile, and water absorption test and as well as to analyse biodegradability of PLA/RS biopolymer by soil-degradability test. The result of FTIR distinctly showed that bonding of hydrogen present between the polymers can increase the toughness of the film. This bonding is presented at frequency 2996 cm-1 and 3500cm-1 which contributed to the hydrogen bonding. In this research the optimum fibre loading is 10% because it the higher value of tensile strength among others which is 15.11MPa. Other than that, the percent crystallinity of film with optimum rice straw fibre content is higher than neat Poly(lactic) acid film which is 253.80% as compared to 133.13%. The PLA/RS film also can withstand under modest to high temperature with the highest melting temperature (Tm) at 59.64°C and optimum glass temperature (Tg) at 152.08°C. Besides, the percentage of water intake of PLA/RS increased gradually with increment of RS fibre through the hydrophobicity property in RS fibre was lead to improvement in biodegradation.
format	Thesis
qualification_level	Bachelor degree
author	Saindin, Shuhaila
author_facet	Saindin, Shuhaila
author_sort	Saindin, Shuhaila
title	Rice straw reinforce poly (latic acid) biopolymer. mechanical and thermal properties / Shuhaila Saindin
title_short	Rice straw reinforce poly (latic acid) biopolymer. mechanical and thermal properties / Shuhaila Saindin
title_full	Rice straw reinforce poly (latic acid) biopolymer. mechanical and thermal properties / Shuhaila Saindin
title_fullStr	Rice straw reinforce poly (latic acid) biopolymer. mechanical and thermal properties / Shuhaila Saindin
title_full_unstemmed	Rice straw reinforce poly (latic acid) biopolymer. mechanical and thermal properties / Shuhaila Saindin
title_sort	rice straw reinforce poly (latic acid) biopolymer. mechanical and thermal properties / shuhaila saindin
granting_institution	Universiti Teknologi Mara Perlis
granting_department	Faculty of Applied Sciences
publishDate	2020
url	https://ir.uitm.edu.my/id/eprint/34244/1/34244.pdf
_version_	1783734259201081344

Rice straw reinforce poly (latic acid) biopolymer. mechanical and thermal properties / Shuhaila Saindin

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