Effects of Ageing on Chemical and Mechanical Properties of Polypropylene (PP) Resin 
Umali, Bernadeth Pasahol 
 - 106 p.  26 cm 
 - EFFECTS OF AGEING ON CHEMICAL AND MECHANICAL PROPERTIES OF POLYPROPYLENE (PP) RESIN .
<br/><br/> This study entitled "Effects of Ageing on Chemical and Mechanical Properties of polypropylyne (PP) Resin" aimed to answer effects of ageing on resins' properties during the five - month storage at different environmental conditions.  The samples used in the experiment were composed for 3 bags, each bag contained 25 kilogram of virgin homopolymer yarn grade PP resin from a gas-phase polypropylene process.