Production of PVC-films with specific properties

Abstract

When developing polymeric materials with specified properties special compounds such as fungicides are used alongside traditional chemical additives (plasticizers). Usage of fungicides are determined by negative influence of mold fungi, bacteria and other microorganisms on polyvinyl chloride (PVC) material. The present work focuses on the possibility to implement octylphenoxypropyl phthalates (OPOPP), proposed as plasticizers, and derivatives of 3-mercapto1,2,4-triazinon-5, proposed as fungicides, in PVC films. The first additive was produced by esterification of phthalic anhydride by oxypropylated phenols and 2-ethylhexanol, the second additive – by cyclocondensation of alpha-keto acids with thiosemicarbazide. Having analyzed the results of experiments the authors found out that compositions obtained with the use of new additives – octylphenoxypropyl phthalates and derivatives of 3-mercapto-1,2,4-triazinone-5, acquire high performance properties that leads to increased service life. At the same time such important characteristics as strain at elongation, ultimate tensile stress, thermostability and funginertness are enhanced.

Keywords

• funginertness
• dioctyl phthalate
• tension at elongation
• octylphenoxypropyl