Ong Hui Lin, Assoc. Prof. Dr.This page provides access to scholarly publications by UniMAP Faculty members and researchers.http://dspace.unimap.edu.my:80/xmlui/handle/123456789/340262024-03-28T13:22:27Z2024-03-28T13:22:27ZThermal properties of linear-low density polyethylene (LLDPE)/soya spent powder blends with the addition of epoxidised natural rubberSam, Sung Ting, Dr.Nik Noriman, Zulkepli, Dr.Santiagoo, Ragunanthan.Ong, Hui Lin, Dr.Hanafi, Ismailhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/351992014-06-09T04:47:57Z2013-01-01T00:00:00ZThermal properties of linear-low density polyethylene (LLDPE)/soya spent powder blends with the addition of epoxidised natural rubber
Sam, Sung Ting, Dr.; Nik Noriman, Zulkepli, Dr.; Santiagoo, Ragunanthan.; Ong, Hui Lin, Dr.; Hanafi, Ismail
Soya spent powder as an inexpensive and renewable source has been used as a filler for linear-low density polyethylene (LLDPE) in this study. Linear-low density polyethylene (LLDPE)/soya spent powder composites were prepared by using Haake internal mixer. The mixing time was 10 minutes at 150°C with rotor speed 50 rpm. Epoxidised natural rubber (ENR 50) has been used as a compatibilizer in the present study. The thermal properties of the LLDPE/soya spent powder composites with and without ENR were studied with a differential scanning calorimetry (DSC). The crystallinity of the LLDPE/soya spent powder composites decreased with increasing soya spent powder content. However, the addition of ENR 50 as a compatibilizer increased the crystallinity of the LLDPE/soya spent powder composites.
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2013-01-01T00:00:00ZTensile properties LLDPE/soya spent powder blends: Oven agingSam, Sung Ting, Dr.Nik Noriman, Zulkepli, Dr.Santiagoo, RagunanthanOng, Hui Lin, Dr.Hanafi, Ismailhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/351972014-06-09T04:10:39Z2013-01-01T00:00:00ZTensile properties LLDPE/soya spent powder blends: Oven aging
Sam, Sung Ting, Dr.; Nik Noriman, Zulkepli, Dr.; Santiagoo, Ragunanthan; Ong, Hui Lin, Dr.; Hanafi, Ismail
Linear low-density polyethylene (LLDPE)/soya spent powder blends with different blends ratio were prepared by using internal mixer. Soya spent powder was varied from 5 to 40 wt. The thermal degradability was assessed by subjecting the dumbbell sample to oven aging. Thermal aging was carried out for 5 weeks. The degradability was measured by the periodic change in tensile properties of the blend samples. The tensile strength and elongation at break of the blends reduced as increasing the aging time. The effect of degradation was obvious in higher soya spent powder blends.
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2013-01-01T00:00:00ZEffect of particle morphology on the properties of polypropylene / nanometric zinc oxide (PP/nanoZnO) compositesOng, Hui Lin, Dr.Hazizan, Md AkilShahrom, Mahmudhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/344352014-05-15T13:05:02Z2009-01-01T00:00:00ZEffect of particle morphology on the properties of polypropylene / nanometric zinc oxide (PP/nanoZnO) composites
Ong, Hui Lin, Dr.; Hazizan, Md Akil; Shahrom, Mahmud
Polypropylene/nanometric zinc oxide (PP/nanoZnO) composites at 1 wt% nanoZnO content were prepared using melt blending method using a thermo Haake internal mixer. Three different types of zinc oxide (ZnO) with different morphologies were used as fillers. Each composite was subjected to characterization analyses including tensile testing, UV-vis spectroscopy and electron microscopy. The tensile strength, tensile modulus and elongation at break of the PP/nanoZnO composites were observed to be greatly enhanced despite the low filler content (1 wt%). All ZnO-reinforced composites exhibited superior UV absorption characteristic especially for composite specimens reinforced with ZnO morphology rich in nanorods.
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2009-01-01T00:00:00ZEffect of inorganic fillers on the flammability behavior of polypropylene compositesJamilah, Abd RazakHazizan, Md AkilOng, Hui Lin, Dr.http://dspace.unimap.edu.my:80/xmlui/handle/123456789/344342014-05-15T08:58:28Z2007-01-01T00:00:00ZEffect of inorganic fillers on the flammability behavior of polypropylene composites
Jamilah, Abd Razak; Hazizan, Md Akil; Ong, Hui Lin, Dr.
This report summarizes the effect of various inorganic fillers such as alumina (-Al2O3), calcium carbonate (CaCO3), silica (SiO2), and feldspar (KAlSi3O8) on the flammability behavior of polypropylene (PP) composites. The effect of various filler loadings (by weight percent), typically at 40 and 60% has also been investigated for each of the fillers used. Initially, the compounding of composites (filler and polypropylene) was carried out using a two-roll mill; later, the test specimens were prepared using the compression molding technique. For each composite system, the linear rate of burning at two filler loadings was calculated, analyzed, and compared. Consequently, the characteristics of the flame, typically smoke suppression and char formation, were also analyzed as recommended by ASTM and UL 94 methods. From the results, it is clear that adding alumina fillers to polypropylene, at both percentages, results in decreasing the linear rate of burning, and hence improves flammability resistance. It is also interesting to note that alumina-filled PP shows greater flame-retardant behavior at both the 40 and 60% filler loadings.
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2007-01-01T00:00:00Z