000			03641nam a2200349 i 4500
999			_c96405 _d96411
003			MY-KuUP
005			20251125105952.0
006			a||||fr|||| 001 0
007			ta
008			220407t20212021my a|||fram|| 001 0 eng d
020			_aTHE0009293(Local)
040			_aUMP _beng _cUMP _erda
090			_aKK .Z35 2021 r Thesis
100	0		_aZalinawati Muhamad, _eauthor.
245	1	0	_aPerformance of buri palm (corypha utan) reinforced epoxy composite : _beffect of alkali treatment / _cZalinawati Muhamad
264		1	_aKuantan, Pahang : _bUMP, _c2021
264		4	_a© 2021
300			_axiii, 117 pages : _billustrations (some color) ; _c30 cm. + _e1 CD ROM
336			_atext _2rdacontent
337			_aunmediated _2rdamedia
338			_avolume _2rdacarrier
347			_atext file _bPDF _2rda
500			_aCollege of Engineering
502			_aThesis (Master of Science) -- Universiti Malaysia Pahang – 2021
504			_aIncludes bibliographical references
520	3		_aThe development of polymer composites using natural fiber reinforced polymer has grown in recent years due to increase in environmental awareness. Natural fibers are much cheaper than synthetic fibers and can be used as a subtitute in applications, where the cost concern outweighs strength requirements. Due to the low cost in comparison to synthetic fibers, the buri (corypha utan) fiber reinforced composites have great potential to be used in engineering applications. The aim of this study was to analyse density, Fourier transform spectroscopy (FTIR), and physical and mechanical properties of the single- strand buri palm fiber in different conditions of surface modification, one with 5 wt.% and the other with 10 wt.% sodium hydroxide (NaOH) for 1 and 24 h immersion. This study was to fabricate the buri palm fiber reinforced epoxy composite and evaluate the effects of fiber treatment on water absorption, tensile properties and flexural properties. The density of buri palm fiber showed that a higher NaOH solution concentration and immersion period leads to lower density. The best treatments of single-strand treated with 5 wt.% 24 h immersion showed the highest tensile strength of 159.16 MPa. It was used to fabricate the composite of four-layers and five-layer stacking sequence composite made by using hand lay-up technique and hydraulic press. The water absorption experiment was conducted by immersing the specimen in distilled water at room temperature until it reached the saturated moisture absorption. The percentage of moisture uptake was reduced to 69% and 95% in treated four-layer and five-layer sequences. It is observed that the thickness swelling of the composite increased with the increase of sequence layering, while the thickness swelling decreased with the treated fiber. The results for dry composites show that the five-layer treated gave the highest tensile strength and flexural of 33.51 MPa and 56.72 MPa. Finally, morphology examinations were carried out to analyse the fracture behavior and fiber failure on the tensile test specimen by using Scanning electron microscopy (SEM) and microscope analysis. In conclusion, it would appear that the mechanical properties increased as increase of sequence layering treated fiber composite. Alkali treatment affected the properties of buri palm fiber which improved the interfacial bonding between the fiber and epoxy matrix for better tensile properties and reduced water absorption.
610	2	0	_aCollege of Engineering _xDissertations
650		0	_aUniversities and colleges _xDissertations
650		0	_aTheses
942			_2lcc _cTHESIS