A Study On UV Curing Process Of Polymeric Materials

Ramli , Junid (2006) A Study On UV Curing Process Of Polymeric Materials. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Polymer material manufacturing techniques have over the years generated tremendous interest in the area of research and development in response to current trends and demands. Bullet proof vests use polymer materials as their constituent in resisting high ballistic impact. One of the section to produce bullet proof vest as personnel protective equipment (PPE) is through a UV curing process to the polymeric materials. Although curing by this technique is relatively slow compared to heat curing, the result is high strength and high impact properties of polymer composites due to crystallinity enhancement of the polymers through cross-linking mechanism. Two types of adhesives materials were used: epoxy and vinyl ester. They were mixed together with different photoinitiator, Bisacyl Phosphine Oxide (BaPO) and Alpha Hydroxyl Ketone Peroxide (AHK). 1.0 and 10.0 per hundred of resin (phr) photoinitiator from the total mi>..'ture was added to the adhesive materials. Samples were cured under various times of curing which are 3, 6, 9 and 12 minutes to compare the quality of time exposure under UV light The mixture of adhesive and photo initiator ·was wiped on the fiber layers to act as glue to stick the layers. The laminate was then tested to determine its characteristics such as physical testing like density test, mechanical testing was also performed in order to know its tensile and hardness properties. Morphology study by Scanning Electron Microscope was performed in order to study if proper adhesion has been achieved in each layer. The data obtained was analyzed to determine whether epoxy and vinyl ester give better results.

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