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Permanent antistatic polypropylene based on polyethylene wax/polypropylene wax‐grafting sodium acrylate
Author(s) -
Xu Xiang,
Xiao Huining,
Guan Yong,
Li Shuzhao,
Wei Dafu,
Zheng Anna
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.37524
Subject(s) - antistatic agent , materials science , polypropylene , polyethylene , wax , contact angle , composite material , polymer blend , fourier transform infrared spectroscopy , polymer chemistry , grafting , chemical engineering , polymer , copolymer , layer (electronics) , engineering
Two types of permanent antistatic agents, polyethylene wax grafted with sodium acrylate (PEW‐ g ‐AAS) and polypropylene (PP) wax grafted with sodium acrylate (PPW‐ g ‐AAS), were prepared using a solution grafting method and applied to PP to enhance antistatic properties. The grafting degree was determined using back titration method, and structures were confirmed by Fourier transform infrared spectroscopy. The antistatic properties of PEW‐ g ‐AAS/PP blends and PPW‐ g ‐AAS/PP blends were characterized by surface resistivities (ρ s ) and volume resistivities (ρ v ), and a combination of contact angle measurement, scanning electron microscopy, permittivity, and dielectric loss were used to investigate the surface and inner structures of the blends. Results showed that ρ s and ρ v of PEW‐ g ‐AAS/PP blends dropped significantly (four to seven orders of magnitudes) above a critical addition at 10%, where an electrostatic dissipative network formed; PPW‐ g ‐AAS revealed an inferior antistatic performance than PEW‐ g ‐AAS due to its better compatibility and smaller content of dispersed phase in the matrix. Furthermore, the antistatic blends treated in 80°C water, 80°C air, and room temperature were investigated, and the results were interpreted from surface energy. Moreover, the addition of antistatic agent had little impact on tensile strength of the PP matrix. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013