000			03022ntm a2200277 a 4500
001			vtls000102271
003			KUKTEM
005			20251117113348.0
008			171030s2017 my da f abm 000 0 eng d
020			_aTHE0000129(Local)
039		9	_a201905131236 _bnazirah _y201710301037 _zsaini
040			_aUMP
090			_aFIST .B79 2017 r Bc.
100	0		_aBryan Andrew Balasan
245	1	0	_aSynthesis and characterization of polyvinyl alcohol/cerium (III) acetate nanofiber composites of various ratio of [OH-] : [Ce3+] / _cBryan Andrew Balasan
260			_aKuantan, Pahang : _bUMP, _c2017
300			_axiii, 40 p. : _bill. (some col.), charts ; _c30 cm. + _e1 CD-ROM
500			_aFaculty of Industrial Sciences and Technology
502			_aProject Paper (Bachelor of Applied Science (Honor) Material Technology) -- Universiti Malaysia Pahang – 2017
504			_aBibliography : p. 30-32
520	3		_aThis research describes the synthesis and characterization of Polyvinyl Alcohol/Cerium (III) Acetate nanofibers by electrospinning using different molar ratios (PVA/Ce(III)Ac). The molecular weight of PVA used was MW 145,000 and Cerium (III) Acetate Hydrate at 99.9% purity. 11wt% of PVA solution with different molar ratio were prepared. The prepared solutions were molar ratios of PVA:Ce(III)Ac as 1:0, 1:1/3, 1:1/2, and 1:1. Viscosity results showed that increasing Ce(III)Ac ratio have decreased the viscosity of the prepared solutions. The pure solution was spun into nanofiber having good flexibility. Nanofiber having increasing ratio of Ce(III)Ac becomes less flexibility and more breakable. Observation under microscope reveals that the nanofibers of 1:0 were smooth, aligned, continuous and average diameter 550 ± 181 nm. Nanofibers with increasing ratio of Ce(III)Ac showed increasing beads, random allignment nanofibers, discontinuous and average diameter of 168 ± 54 nm, 216 ± 74 nm and 186 ± 47 nm. Thermal gravimetric analysis showed that nanofiber with increasing Ce(III)Ac at second stage experienced greater weight lost compared to the second stage of pure PVA. Pure PVA nanofiber has high thermal stability because onset temperature of second stage was 199°C whereas nanofibers of increasing rato of Ce(III)Ac were 160°C-181°C. Differential scanning calorimetry results of first heating cycle showed similar first melting point and cold crystallization at 32°C and 36°C respectively. For the second heating cycle showed that melting point had increased for recrystallization of all nanofiber compoites samples at around 223 ± 2°C but cold crystallization have changed for increasing Ce(III)Ac at 320 ± 24°C. The second melting point after cold crystallization occurs much later as for increasing Ce(III)Ac ratios.
610	2	0	_aFaculty of Industrial Sciences and Technology _xDissertations
650		0	_aUniversities and Colleges _xDissertations
650		0	_aTheses
999			_aVIRTUA40 _c7370 _d7376
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