Effects of poly(butylene succinate) and calcium carbonate on the physical properties of plasticized poly(vinyl chloride)
In this studypoly(butylene succinate) (PBS) , a polymeric plasticizer, was partially replaced a conventional plasticizer, diisononyl phthalate (DINP) to avoid the plasticizer loss from poly(vinyl chloride) (PVC) overtime for various service conditions and to obtain a long-term plasticizer retention in the flexible PVC products. The plasticized PVC samples were prepared by melt mixing on a two roll mill, followed by compression molding. The mechanical properties (tensile properties, tear strength and hardness), thermal stability and morphology of the 20/20 phr (parts by weight per hundred parts of resin) DINP/PBS-plasticized PVC were evaluated and compared with those of the 40 phr DINP-plasticized PVC. The tensile strength, Young’s modulus, tear strength, hardness and thermal stability were found to be improved, while the elongation at break was decreased as a result of the partial replacement of DINP with PBS in the plasticized PVC. Moreover, the DINP/PBS-plasticized PVC composites filled with varied loadings of CaCO3 (2.5, 5, 7.5 and 10 phr) showed an increase in the elongation at break, Young’s modulus and thermal stability in a dose-dependent manner, while the tensile strength, tear strength and hardness were unaffected by the increasing amount of CaCO3. The morphology of the composites observed by scanning electron microscopy showed a number of voids on the fractured surface of the plasticized PVC due to the pulling out CaCO3 particles, caused by the low interfacial adhesion between filler and polymer.
How to Cite
LicenseAuthors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.