Premium
Study of Ashes from Pachystroma longifolium Leaf as Stabilizer For PVC Exposed to γ‐Irradiation
Author(s) -
de Carvalho Fernando H. A.,
Barbosa de Souza Paulo Fernandes,
da Silva Lindomar A.,
de França Elvis J.,
Araújo Elmo S.,
da Silva Santos Renata Francisca,
da Silva Aquino Kátia Aparecida
Publication year - 2019
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201800021
Subject(s) - thermogravimetric analysis , stabilizer (aeronautics) , radiolysis , irradiation , chemistry , thermal , nuclear chemistry , chemical engineering , materials science , organic chemistry , thermodynamics , radical , physics , mechanical engineering , nuclear physics , engineering
We describe the use of Pachystroma longifolium (Nees) I. M. Johnst, commonly called canxim, as a radiolytic stabilizer of PVC exposed to γ‐irradiation. Results obtained by viscosity analysis shows that ashes from canxim leaves at the concentration of 0.7 wt% provided macromolecular radioprotective action of 88.2% to the PVC. FT‐IR spectra analysis reveals the existence of specific intermolecular interactions between PVC and canxim ashes. Furthermore, thermogravimetric analysis shows that canxim can also be a potential thermal stabilizer for PVC matrix. Hence, we suggest that canxim have interesting applications in radiolytic and thermal stabilization of PVC.