RESEARCH OF THERMOSTABILITY OF PHTHALATES OF OXYALKYLATED ALCOHOLS
Journal: Nanotechnologies in Construction: A Scientific Internet-Journal (Vol.10, No. 2)Publication Date: 2018-04-30
Authors : Mazitova A.K. Aminova G.K. Maskova A.R.;
Page : 157-170
Keywords : antioxidant; PVC; aromatic alcohols derivatives; ester plasticizers; thermal stability; phthalates of aliphatic oxyalkylated alcohols.;
Abstract
The production of polyvinyl chloride (PVC) requires implication of a large number of plasticizers. Ester compounds are the most suitable for plasticization. Currently the existing range of industrial plasticizers does not satisfy a need of the polymer industry and it is of great importance to develop new plasticizers that meet modern requirements. Therefore, the elaboration of new ester compounds with effective plasticizing properties, is relevant and has not only scientific value, but also practical one. One of the basic requirements for ester plasticizers is their resistance to thermal oxidation. Accordingly, we considered the effect of oxygen at 150о C (the temperature of conversion of PVC-plastic compounds) on a wide range of oxyalated alcohol phthalates developed earlier. The first group consisted of aromatic alcohols, the second group – phthalates of oxyalkylated aliphatic alcohols. The first group showed high thermal stability, the latter should be stabilized by the addition of antioxidants. It is known that aromatic hydrocarbon derivatives are widely used as stabilizers of thermooxidative disrupture. The main function of the mentioned compounds is to suppress the catalytic action of air oxygen in energy impacts on polymers and plasticizers. Consequently, we investigated the effect of Agidol-1 on increasing the stability of phthalate plasticizers to thermaloxidative degradation.
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