MARC View

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003			KUKTEM
005			20251117113344.0
008			171031t2017 my a f a m 000 0 eng d
020			_aTHE0000174(Local)
039		9	_a201905131629 _bnazirah _c201712061231 _dhuda _y201710311432 _zfateeha
040			_aUMP
090			_aFIST .N333 2017 r Bc.
100	0		_aNur Nadia Mohd Nasir
245	1	0	_aSynthesis, characterization and fabrication of porous carboxymethyl cellulose/starch based bio-composite materials / _cNur Nadia Mohd Nasir
260			_aKuantan, Pahang : _bUMP, _c2017
300			_axiv, 35 p. : _bill. (some col.) ; _c30 cm. + _e1 CD-ROM
500			_aFaculty of Industrial Sciences and Technology
502			_aProject Paper (Bachelor of Applied Science (Honour) Material Technology) -- Universiti Malaysia Pahang – 2017
504			_aBibliography : p. 32-33
520	3		_aBio-composite polymer have an important role in many applications. Bio-composite consists of the perfect combination of natural polymers that are biodegradability, least expensive cost and non-toxicity material. The natural polymer combination that have been used in this research are modified cellulose, which is carboxymethyl cellulose (CMC), and starch. In this study, CMC and corn starch will be blend at different weight ratios (100:0, 50:50, 60:40, 30:70, 0:100) by using water as the only solvent. The CMC, corn starch and mixture of CMC/corn starch will be undergo freeze-drying process to produce highly porous biopolymers substrates. Freeze-drying is an easy and convenient technique to produce highly interconnected pores, favourable in tissue engineering. This methods involves the removal of water or any other solvent without damaging of a frozen product by a process called sublimation. All the samples will be physically and thermally characterized by using Rheometer, SEM, ATR-FTIR and TGA. ATR-FTR spectroscopy, has been used to study the functional group of CMC/starch blend polymer solution. In ATR-FTIR study, the changes to the infrared bands, associated with the C-O stretch coupled to the C-C stretch and O-H deformation, were significant and this further supports the strong hydrogen bonding of CMC to the solid surface. SEM have been used to investigate the functional group and porous structure characteristics of the prepared sample. Under SEM testing, the images of each sample shows the different porous structure were obtained by varying the different content of CMC/starch. The measurement of porous scaffolds were assessed with ImageJ, the results showed the increasing of pore size with the addition of CMC content while the granular morphology were showed that the distribution is increased with the amount of corn starch. . Next, TGA and derivatives thermogravimetry (DTG) were carried out for studying the thermal properties of CMC/starch freeze-dried scaffolds. TGA/DTG curve shows that the weight loss of the sample decreased due to the increasing of the temperature of heating. The viscosity of CMC/starch blends polymer solution has been testing by using a rheometer. The sample solution with higher content of CMC showed that the viscosity decrease due to the increasing of shear rate.
610	2	0	_aFaculty of Industrial Sciences and Technology _xDissertations
650		0	_aUniversities and Colleges _xDissertations
650		0	_aTheses
856	4	0	_uhttp://ecollib.ump.edu.my/28012/ _zAccess in library only
999			_aVIRTUA40 _c7269 _d7275
999			_aVTLSSORT00800200040009001000245026003000500050205040520061006500650185609992