000 04045ntm a2200373 i 4500
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005 20251114204522.0
008 180928t20182018my da f a m 001 0 eng d
020 _aTHE0000829(Local)
039 9 _a201905271213
_bnazirah
_y201809281025
_zfateeha
040 _aUMP
_beng
_cUMP
_erda
090 _aFKKSA .A363 2018 r Thesis
100 0 _aNurul Akma Reduan,
_eauthor.
245 1 0 _aSynthesis and characterization of silver nanoparticles filled epoxy composite /
_cNurul Akma Reduan
264 1 _aKuantan, Pahang :
_bUMP,
_c2018
264 4 _c© 2018
300 _axvi, 125 pages :
_billustrations (some color), charts ;
_c30 cm. +
_e1 CD-ROM
336 _atext
_2rdacontent
336 _atext
_2rdacontent
337 _aunmediated
_2rdamedia
337 _acomputer
_2rdamedia
338 _avolume
_2rdacarrier
338 _acomputer disc
_2rdacarrier
347 _atext file
_bPDF
_2rda
500 _aFaculty of Chemical & Natural Resources Engineering
502 _aThesis (Master of Engineering (Chemical)) -- Universiti Malaysia Pahang – 2018
504 _aIncludes bibliographical references
520 3 _aIn this study, silver nanoparticles (AgNPs) were successfully synthesized via chemical reduction method. Silver nitrate (AgNO3), was used as a precursor, Sodium Borohydride (NaBH4) as a reducing agent and Cetyltrimethylammonium Bromide (CTAB) as a surfactant. The effect of reaction temperature, concentration of AgNO3 and NaCl were investigated in order to synthesize AgNPs with uniform shape and narrow particles distribution. The synthesized AgNPs was characterized by UV-VIS, TEM, XRD, and FESEM while; the average size was measured by Image-J software. XRD diffraction peak confirm that the samples prepared are AgNPs based on the peak position at 38.4° and 44.8°. Synthesis parameter at 60°C, 1.00 mM and 3.0 mM of reaction temperature, concentration of AgNO3 and NaCl respectively shows an optimum condition which produced AgNPs with narrow particle distribution, no agglomeration and uniform spherical shape at the end of reaction. The addition of NaCl affected the state of the reaction solution which is pH. This study shows solution at pH 7.5 gave better particles formation with no appearance of agglomerated particles. Meanwhile, stability study by UV-Vis and TEM analysis shows that the as-synthesized AgNPs was remain stable up to 1 month. The implementation of aqueous to organic phase transfer technique in this study is aimed to improve particles dispersivity in the epoxy polymeric system (composite preparation). FESEM analysis showed the AgNPs were dispersed well in the epoxy system. The composites of epoxy and AgNPs composite were fabricated as a function of particles concentration in the volume percentage (vol %) on thermal and thermo-mechanical properties of composite. Incorporation of AgNPs in the epoxy system is aimed to improve the thermal and thermo-mechanical properties of the resultant composite. The thermal and thermo-mechanical properties from TGA, DSC and DMA analysis shows that AgNPs- filled epoxy composite have higher thermal and thermo-mechanical properties compared to unfilled epoxy polymer. TGA analysis showed that, sample at 1.0 vol % AgNPs was recorded in the highest value of thermal properties compared to the unfilled AgNPs. From DMA analysis, samples at 0.2 vol% shows the thermo-mechanical properties of AgNPs-filled epoxy composite obtained 47-56% increment in the storage modulus and tan delta compared to unfilled AgNPs epoxy composite. Based on experimental results, thermal and thermo-mechanical can be conclude that AgNPs-filled epoxy composite can be used either in engineering or in various applications.
610 2 0 _aFaculty of Chemical & Natural Resources Engineering
_xDissertations
650 0 _aUniversities and colleges
_xDisertations
650 0 _aTheses
999 _aVIRTUA40
_c3431
_d3437
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2640*2641*3000*3360*3361*3370*3371*3380*3381*3470*5000*5020*5040*5200*6100*6500*6501*9992