导电聚酯片的制备及酸处理对导电层吸附量和黏附性的影响

doi:10.6040/j.issn.1671-9352.0.2014.231

Abstract

Abstract: The conductive polyester (PET) slice was synthesized by in situ polymerization. Hydrochloric acid was used as the doping agent and ammonium persulfate (APS) was used as the oxidizing agent. The PET substrate was pretreated with concentrated sulfuric acid before aniline polymerization for the purpose of improving the adsorbance and adhesion of polyaniline (PANI) coating on the PET substrate. The changes of wettability, chemical composition and morphology of the PET after acid treatment was characterized by contact angle goniometer, X-ray photoelectron spectroscopy (XPS) and field emission scanning electron microscopy (SEM). The weighting method according to the weight change of the PET substrate after aniline polymerization was used to assess the capacity of PANI grafting on the PET slice. The washing fastness of PANI on PET can be evaluated by the changes of conductivity and colour after washing with 1-methyl-2-pyrrolidone (NMP). The conductivity of the samples was performed with a four-point probe conductivity tester. The experimental results indicated that when the PET was treated with acid solution, the PET macromolecular chain was broken and the functional groups were formed, so the wettability, the polar groups and the roughness of PET surface was increase, which was helpful to increase the adsorbance of PANI and enhance the interaction of PANI and PET. The conductive PET prepared by this method is expected to be directly used as the conductive device, which can improve the processability of PANI in a certain extent.

Key words: adsorbance, polyaniline, acid treatment, adhesion, polyester

CLC Number:

SONG Yan-duo, SHAO Guo-jun, WANG Rui, RU Miao-yan. Preparation of conductive polyester slice and influence of acid treatment on the adsorbance and adhesion of the conductive layer[J].JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE), 2015, 50(01): 70-75.

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Preparation of conductive polyester slice and influence of acid treatment on the adsorbance and adhesion of the conductive layer

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