Reinforcement of ultrahigh thermoresistant polybenzimidazole films by hard craters
Literature Information
Jiabei Zhou, Xianzhu Zhong, Yang Liu, Kenji Takada, Tatsuo Kaneko
Porous structures were formed in polybenzimidazole derivative films by a silica template method, followed by HF etching. As expected, the resulting ultrahigh thermoresistant films showed better elongation properties than did the non-porous films, with renewed strength and hardness. Microscopic analyses revealed that the pores were clearly formed, and craters with swollen edges and hardened surfaces were also observed.
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