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Effect of precipitated calcium carbonate on the mechanical properties of poly(vinyl chloride)
Author(s) -
Fernando N. A. S.,
Thomas N. L.
Publication year - 2007
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.20109
Subject(s) - calcium carbonate , charpy impact test , materials science , ultimate tensile strength , vinyl chloride , calcium , izod impact strength test , carbonate , composite material , particle size , chemical engineering , metallurgy , polymer , copolymer , engineering
This study examines the effect of various grades of precipitated and ground calcium carbonate on the tensile strength and Charpy impact energy of extruded PVC profile. The results confirm that ultra‐fine precipitated calcium carbonate (pcc) can give rise to large improvements in single notch impact strengths. Control values of 9 kJ/m −2 were increased to 79 kJ/m −2 through the addition of ultra‐fine pcc. The results have been interpreted in terms of the particle size, shape, and coating of the calcium carbonate grades and the effect on the gelation characteristics of the PVC formulations. J. VINYL ADDIT. TECHNOL., 13:98–102, 2007. © 2007 Society of Plastics Engineers.