摘要：

in recent years, biopolymers with controllable lifetimes have become increasingly important for many applications in the areas of agriculture, biomedical implants and drug release, forestry, wild life conservation and waste management. natural oils are considered to be the most important class of renewable sources. they can be obtained from naturally occurring plants, such as sunflower, cotton, linseed and palm oil. in malaysia, palm oil is an inexpensive and commodity material. biopolymer produced from palm oil (bio-vop) is a naturally occurring biodegradable polymer and readily available from agriculture. for packaging use however, bio-vop is not thermoplastic and its granular form is unsuitable for most uses in the plastics industry, mainly due to processing difficulties during extrusion or injection moulding. thus, research workers have developed several methods to blend bio-vop appropriately for industrial uses. in particular, injections moulding processes, graft copolymerisation, and preparation of blends with thermoplastic polymers have been studied to produce solid biodegradable shaped bodies. hdpe was chosen as commercial thermoplastic materials and was added with 10% bio-vop for the preparation of solid biodegradable shaped bodies named as hd-vop. the uv light exposure of hd-vop at 12 minutes upon gives the highest strength of this material that is 17.6 mpa. the morphological structure of hd-vop shows dwi structure surface fracture which is brittle and ductile properties.

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