OPTIMIZING THE COMPOSITION OF UNPLASTICIZED POLYVINYL CHLORIDE PROFILES BY ADDING CHLORINATED POLYETHYLENE

Petranka Naydenova-Marinova; Danika Aleksandrova

doi:10.59957/jctm.v61.i3.2026.6

Authors

Petranka Naydenova-Marinova University of Chemical Technology and Metallurgy
Danika Aleksandrova University of Chemical Technology and Metallurgy

DOI:

https://doi.org/10.59957/jctm.v61.i3.2026.6

Keywords:

unplasticized polyvinyl chloride, modification, properties, chlorinated polyethylene.

Abstract

The synergistic effect of partial replacement of acrylic modifier with chlorinated polyethylene on the performance properties of extruded profiles made of rigid polyvinyl chloride was studied. Five dryblend formulations with different ratios of chlorinated polyethylene and acrylic modifier were prepared. Profiles with identical geometry (five-chamber frame) were extruded from them. Test specimens were prepared from the surface of the profiles. Tests were conducted and the physicomechanical properties of the tested samples were analysed. Based on this, the optimal content of chlorinated polyethylene in the dryblend composition was established. The impact and cold resistance, linear expansion, strength of the weld (thermally sealed corner), gloss and whiteness of the products were studied on the modified profiles. The aim of the present work is to improve the performance properties and reduce the cost of the final products by modifying the composition of the dryblend to produce profiles made of unplasticized polyvinyl chloride.

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