000			02980ntm a2200349 i 4500
003			MY-KuUP
005			20260414094511.0
006			t||||fr|||| 000 0
007			ta
008			260414t20252025my a|||fr|||| 000 0 eng d
020			_aTHE0010458 (Local) _qHardback
040			_aUMPSA _beng _cUMPSA _erda
090			_aFIST .F38 2025 r Bc.
100	1		_aNur Fatin Farhana Binti Tajuddin, _eauthor.
245	1	0	_aSynthesis and characterization of hydrogel reinforced by salacca zalacca fibre as potential slow release fertilizer / _cNur Fatin Farhana Binti Tajuddin
264		1	_aKuantan, Pahang : _bUMPSA, _c2025
264		4	_c© 2025
300			_axiv, 75 pages : _ _billustrations ;
336			_2rdacontent _atext
337			_2rdamedia _aunmediated
338			_2rdacarrier _avolume
347			_2rda _atext file _bPDF
500			_aFaculty of Industrial Sciences and Technology
502			_aFinal Year Report (Bachelor of Applied Science in Material Technology) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2025
504			_aInclude bibliographical reference
520	3		_aSalacca zalacca trunk-grafted-poly(acrylic acid)/NPK [SCZ-g-P(AAc)/NPK] was synthesised. The synthesis involved the Salacca Zalacca (SCZ) trunk fibre, acrylic acid (AA) monomer, N,N'-Methylene-bis-acrylamide (MBA) crosslinker, sodium hydroxide (NaOH) neutralization agents, ammonium persulfate (APS) initiator, and NPK-151515 fertilizers using in-situ polymerization. The material was mixed together and heated in the reactor until it reached 60°C, and after that, APS solution was added to the mixture, creating the gel structure. Hydrogels underwent different kinds of testing to determine the rate of water absorption until it reaches equilibrium, which SAP took around 4 hours, while SAPC and SRFH took 5 hours. The result of the swelling indicated the SRFH was the lowest, followed by SAPC and SAP. Water absorption capacity (WAC) was also measured, indicating SRFH is 93.96 (g/g), SAPC 120 (g/g), and SAP (128.94), which proved SRFH had the lowest WAC. The degradation of SRFH and SAP was measured to study the biodegradability of the hydrogel. It showed that SRFH lost 83% of its weight compared to SAP 71%. The characterisation of hydrogels by using Fourier transform infrared (FTIR) spectroscopy to investigate the presence of functional groups. The downfall of peak at the range 3373 ����−1 in SRFH is different compared to SAPC and SAP. The morphological result of the SRFH and SAPC showed that SCZ trunk fibre was grafted into the gel in the scanning electron microscope. While EDX is able to compare the elements between SAP and SRFH, it indicated that N, P, and K are in existence in the SRFH.
610	2	0	_aFaculty of Industrial Sciences and Technology _xDissertations
650		0	_aUniversities and colleges _xDissertations
650		0	_aTheses _xDissertations
856			_uhttps://umpir.ump.edu.my/id/eprint/45994
942			_2lcc _cPSM
999			_c104734 _d104740