New polyvinylchloride plasticizers

One of the main large-capacity polymers of modern chemical industry is polyvinylchloride (PVC). Polyvinylchloride is characterized by many useful engineering properties – chemical firmness in different environments, good electric properties, etc. It explains immensely various use of materials on the basis of PVC in different engineering industries. It is cable, building, light industries, mechanical engineering and automotive industry where PVC is widely applied. One of the reasons why PVC production is dramatically growing is that there is no yet other polymer which could be subjected to such various modifying as it is done with PVC. However under normal temperature this polymer is fragile and isn't elastic that limits the field of its application. Rapid growth of production of polyvinylchloride is explained by its ability to modify properties, due to introduction of special additives when processing. Introduction of plasticizers – mostlly esters of organic and inorganic acids – into PVC allows significant changing properties of polymer. Plasticizers facilitate process of receiving polymeric composition, increase flexibility and elasticity of the final polymeric product due to internal modification of polymeric molecule. This paper presents the results of research on production methods, physicochemical and mechanical properties of new chemical additives of polyvinylchloride – plasticizers based on oxyalkylated alcohols. It also describes the optimal conditions for the compounds synthesis and the results of experiments performed with these compounds as additives in PVC film compositions. It is noted that composition obtained by introducing developed plasticizers into PVC compositions meet the requirements of the existing standards, and their oil and petrol resistance exceed standard samples.