Structure and Morphology of PI/Si02 Hybrid Films In-Situ Prepared by Sol一Gel Technology

doi:10.19491/j.issn.1001-9278.2008.08.010

China Plastics ›› 2008, Vol. 22 ›› Issue (08): 46-49 .DOI: 10.19491/j.issn.1001-9278.2008.08.010

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Structure and Morphology of PI/Si0₂ Hybrid Films In-Situ Prepared by Sol一Gel Technology

SHEN Feng-lei，CAO Qing-hua，XU Shi一hua

School of Material Engineering, Suzhou University, Suzhou 215021，China

Received:2008-06-02 Revised:1900-01-01 Online:2008-08-26 Published:2008-08-26

Abstract

Abstract: Silica sol was introduced into polyamide acid and a polyimidc(PI)silica(SiO2)hybrid film was obtained after amidization of PAA.The influence of silica content on clement composition，chemical structure, crystal structure, and morphology of the hybrid film was determined using EDS, FT-IR，XRD, and八FM. During imidization, random inorganic silicon-oxygen network was formed.Size of SiO2 particle increased with increasing SiO2 content. When Si02 content was lower than 5 wt%，the size of Si02 was less than 50 nm, which was increased to 200 nm via coagulation when the SiO2 content
reached 7 wt%.

Key words: sol-gel, polyimidc, silica, hybrid film

SHEN Feng-lei, CAO Qing-hua, XU Shi一hua. Structure and Morphology of PI/Si0₂ Hybrid Films In-Situ Prepared by Sol一Gel Technology[J]. China Plastics, 2008, 22(08): 46-49 .

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Structure and Morphology of PI/Si0₂ Hybrid Films In-Situ Prepared by Sol一Gel Technology

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