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020 _aTHE0004948(Local)
039 9 _a201905131538
_bSHAHRILJ
_c201107132316
_dVLOAD
_c201010110924
_dida
_c201004300748
_dida
_y201004291706
_zida
040 _aUMP
090 _aTP1180.B55 H57 2009 rs Bc.
100 0 _aAbdul Hisham Ruslan
245 1 0 _aEffect of cobalt laurate on the photo-degradation of high density polyethylene /
_cAbdul Hisham Bin Ruslan
246 3 _aEffect of cobalt laurate on the photo-degradation of high density polyethylene
_h[electronic resource]
260 _aKuantan, Pahang :
_bUMP,
_c2009
300 _axvi, 57 p. :
_bill. (some col.) ;
_c30 cm. +
_e1 computer file
502 _aProject paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang - 2009
504 _aBibliography : p. 53-54
520 3 _aPlastics nowadays become something very needful in our packaging industry and its roles in our daily activities are irreplaceable. Plastics help make our life easier and better without any doubt. Plastics are polymer and it takes thousand of time to degrade to the environment. Plastic can degrade to the environment by several methods and photo-degradation is one of them. A common photo degradation reaction is oxidation. Then, oxidation agent that use in this research is cobalt laurate. There are 2 reactions involve in production of cobalt laurate. First reaction is sodium hydroxide with lauric acid, and then continues with cobalt chloride after that. The properties of cobalt laurate were measure like density, solubility, melting point and degradation point to analyze. To study the degradation process the polymer type high density polyethylene is used and it was mixed with cobalt laurate as the oxidation agent. The sample was produced by plastic injection molding. The amount of cobalt laurate in the sample is verified to study their effect on the degradation process. The sample was exposed to the sun light under normal and natural environment condition for two weeks to undergo the photo-degradation process. In this process, the sample will absorb the energy in the form of light to break the chain and bonding among polymer. To ensure the photo-degradation is taken place in the sample, it can reveal by determine differentiation and change in mechanical properties of sample before and after the photo-degradation. The mechanical properties are mass, density, tensile strength, elongation break and surface morphology. After this research is done, the conclusion is the degradation of polymer is faster as the amount of cobalt laurate in the sample increase.
650 0 _aBiodegradable plastics
999 _aVIRTUA40
_c1789
_d1795
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