TY  - MANSCPT
AU  - Nur Fatin Farhana Binti Tajuddin
TI  - Synthesis and characterization of hydrogel reinforced by salacca zalacca fibre as potential slow release fertilizer
SN  - THE0010458 (Local)
PY  - 2025///
CY  - Kuantan, Pahang
PB  - UMPSA
KW  - Faculty of Industrial Sciences and Technology
KW  - Dissertations
KW  - Universities and colleges
KW  - Theses
N1  - Faculty of Industrial Sciences and Technology; Final Year Report (Bachelor of Applied Science in Material Technology) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2025; Include bibliographical reference
N2  - Salacca 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
UR  - https://umpir.ump.edu.my/id/eprint/45994
ER  -