Abstract
AbstractBy replacing the 10 php (parts per hundred polyvinylchloride) DOP plasticizer with the epoxidized linseed oil (ELO) in polyvinylchloride (PVC) processing, a slight increase in tensile properties was observed. The water, 30 wt.% acetic acid, 10 wt.% KOH solution, sunflower oil and n‐hexane were used as media to evaluate the leaching characteristic. The sample weight increased slightly after soaking in water, 30 wt.% acetic solution and decreased slightly in 10 wt.% KOH solution, reduced sharply and strongly in sunflower oil and n‐hexane. The presence of ELO has shown an improvement in migration, volatilization characteristics and thermal property of PVC. The positive effect of ELO as a secondary plasticizer was most evident after 72 hours of soaking in n‐hexane because the shore A hardness of ELO plasticized PVC sample increased by 12 % while PVC sample without ELO was blistered and its shore A hardness could not be measured. The scanning electron microscopy was used to study the morphology of fractured surface the samples after immersing in n‐hexane.
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