Abstract
AbstractIn addition to the primary plasticizers which are essential for giving the required ease of processing to and improving desirable mechanical properties of polyvinyl chloride (PVC) compounds, secondary plasticizers also play a significant role in confering specific properties to PVC. It was from this point of view that the boric acid esters were evaluated in PVC compositions. Because of the limited compatibility of boric acid esters with PVC by themselves, their use could be recommended only as secondary plasticizers. In the present paper various boric acid esters prepared in this laboratory [S. P. Potnis and A. G. Khanolkar, Popular Plastics, 15, 20 (1969)] have been evaluated for their performance in PVC compounds, and results obtained indicate that the monomeric and alicyclic esters of boric acid could be used with definite advantage and improve such properties as electrical resistance, heat stability, and in some cases even the mechanical properties.
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