No abstract

Chemicals usage has been reported as the cause of accidents in a laboratory. Those accidents have caused many injuries, even fatality in many sectors, one of which happened in the University Teaching Laboratory. Accidents usually happen because of unsafe behavior, while unsafe behavior is caused by bad safety perceptions. This paper investigates the correlation of perceptions and behavior in University Teaching Laboratory. The result measured by regression analysis to find out the relationship between two variables showed that there is a strong relationship between perceptions and behavior. Therefore, safe behavior can be created through creating good perception.

Plastics materials have been an integral part in people’s daily life due to their high elasticity, formability and lightweight characteristics which are suitable for many products. However, exponentially growth of plastics waste leads to heavy environmental problems due to the plastics nature which is not easily degradable. One of solution to alleviate environmental problems due to plastics waste is to use pyrolysis method to burn plastics waste and convert them into lighter hydrocarbon which can be used as a source of energy. In this final project, the addition of zeolite catalyst in pyrolysis process of Polypropylene plastic waste has been studied in the terms of energy activation. Isoconversional Friedman and Flynn-Wall-Ozawa methods were used. The results may suggest that the role of zeolite as catalyst is pronounced only in the early stage of pyrolysis process. Keywords: plastics waste, Polypropylene, Zeolite, Friedman, Flynn-Wall-Ozawa