JOURNAL OF POLYMER ENGINEERING

Vol. 23, No. 6, 2003, page 457

An Approach of CF₄/CH₄ Plasmas Induced Surface Modification to Impart Flame Retardancy to Polypropylene and Poly(ethylene terephthalate)

Laishun Shi* and Yongfang Xie

School of Chemistry and Chemical Engineering, South Campus, Shandong University, Jinan 250061, P. R. China

ABSTRACT

Plasma technology was used to modify polymer surface properties, especially to impart flame retardancy. The flammability and thermal stability of PP and PET were investigated by using burning rate and TGA analysis. The flame retardancy, thermal stability and char residue of polymer films were increased by the presence of a highly crosslinking barrier layer pretreated with CH₄ plasma. The difference of PP and PET film treated with CF₄/CH₄ plasma in the flammability and thermal stability was measured.

Keywords: Flame retardancy, Plasma, CF₄/CH₄ system, Polypropylene, Poly(ethylene terephthalate), Surface modification

^*To whom correspondence should be addressed.

^*E-mail: LSHUNSH@sdu.edu.cn

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