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第 35 卷第 10 期 精 细 化 工 Vol.35, No.10
2018 年 10 月 FINE CHEMICALS Oct. 2018

功能材料
聚酰亚胺/聚苯胺-TiO 复合薄膜制备及表征
2

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孙才英，王 莹，郇迎红，姜大伟
（东北林业大学 化学系，黑龙江省高校阻燃新材料重点实验室，黑龙江 哈尔滨 150040）

摘要：以 4,4-二氨基二苯醚（ODA）和均苯四甲酸二酐（PMDA）为单体，以聚苯胺-二氧化钛（PANI-TiO 2 ）
为掺杂物，用原位聚合和超声振荡法制得聚酰胺酸/聚苯胺-二氧化钛溶液，经热亚胺化制得聚酰亚胺/聚苯胺-二
氧化钛（PI/PANI-TiO 2 ）复合薄膜。采用 FTIR、SEM、TG-DTG、介电常数、电子万能试验机等对复合薄膜的
结构、形貌和性能进行了表征与测试。结果表明：PI/PANI-TiO 2 薄膜的热亚胺化完全，PANI-TiO 2 粒子在 PI 基
体中分布均匀。掺杂 10%（以反应制得 PI 的质量为基准，下同）PANI-TiO 2 的 PI/PANI-TiO 2 复合薄膜的综合性
能优于纯 PI，其拉伸强度由纯 PI 的 14.8 MPa 提高到 43.8 MPa；初始分解温度由纯 PI 的 435 ℃提高到 518 ℃，
800 ℃时的残炭量达到 57.7%；介电常数由 3.38 提高到 3.86，介电损耗由 0.0013 提高到 0.0040。
关键词：聚酰亚胺；聚苯胺-二氧化钛；复合薄膜；功能材料
中图分类号：TB333 文献标识码：A 文章编号：1003-5214 (2018) 10-1630-06

Preparation and Characterization of Polyimide/
Polyaniline-TiO 2 Composite Films

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SUN Cai-ying, WANG Ying, HUAN Ying-hong, JIANG Da-wei
（Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retardant Materials, Department of
Chemistry, Northeast Forestry University, Harbin 150040, Heilongjiang, China）

Abstract: Polyamic acid/polyaniline-titanium dioxide (PAA/PANI-TiO 2) composite materials were
prepared by in-situ polymerization and ultrasonic oscillation method with 4,4-oxybisbenzenamine (ODA)
and pyromellitic dianhydride (PMDA) as monomers, PANI-TiO 2 composite material as dopant, and further
imidized into polyimide/polyaniline-titanium dioxide (PI/PANI-TiO 2) composite films by heating process.
The structure, morphology and properties of the obtained composite films were characterized by means of
FTIR, SEM, TG-DTG, dielectric constant meter and universal mechanical testing machine. The results
showed that the imidization of PI/PANI-TiO 2 composite film was completely and PANI-TiO 2 particles were
evenly distributed in PI matrix. It was found that the PI/PANI-TiO 2 composite film containing 10% (base on
the mass of PI, as the below) PANI-TiO 2 exhibited more excellent comprehensive properties than pure PI.
The tensile strength was 43.8 MPa, higher than that of PI (14.8 MPa). The initial degradation temperature
increased from 435 ℃ to 518 ℃. The ratio of remaining carbon at 800 ℃ was 57.7%. The relative
dielectric constant and the relative dielectric loss increased from 3.38 to 3.86 and 0.0013 to 0.0040,
respectively.
Key words: polyimide;polyaniline-titanium dioxide; composite film; functional materials
Foundation items: China Postdoctoral Science Foundation (2016M601402); Natural Science Foundation of
Heilongjiang Province (QC2017038); Postdoctoral Science Foundation of Heilongjiang Province (LBH-Z16004)

[1]
聚酰亚胺（Polyimide，PI）是一类主链上含有 氟聚酰亚胺 。全芳香聚酰亚胺是一类耐高温、耐
重复五元酰亚胺环结构单元的特殊聚合物。聚酰亚 辐射、耐溶剂、化学稳定性强、介电性低的功能
胺分为脂肪族二酸聚酰亚胺、全芳香聚酰亚胺、含 高分子材料 [2-3] ，其在航空航天、液晶、集成电路、

收稿日期：2017-09-27; 定用日期：2018-01-12; DOI: 10.13550/j.jxhg.20170780
基金项目：中国博士后基金（2016M601402）；黑龙江省自然科学基金（QC2017038）；黑龙江省博士后基金（LBH-Z16004）
作者简介：孙才英（1964—），女，教授，博士。联系人：姜大伟(1982—)，男，讲师，电话：0451-82190613，E-mail：sharkwei12345@163.com。