Nano-boria reinforced polyimide composites with greatly enhanced thermal and mechanical properties via in-situ thermal conversion of boric acid. (March 2017)

• Record Type: Journal Article
• Authors: Jian, Shaoju; Liu, Shuwu; Chen, Linlin; Zhou, Songzhi; Fan, Pinchao; Zeng, Yue; Hou, Haoqing
• Is Part Of: Composites communications. Volume 3(2017)
• Page Start: 14
• Page End: 17
• Publication Date: 2017-03
• Subjects: Boric acid -- Nanocomposites -- Polyimide -- Thermal properties -- Mechanical property
• DOI: 10.1016/j.coco.2016.11.002
• Languages: English
• ISSNs: 2452-2139

Abstract

Abstract: High performance materials with excellent thermal stability and mechanical properties are highly required in high temperature area. The addition of inorganic particles is effective to improve the thermal and mechanical properties of polymers. In this work, B2 O3 nanoparticles and their polymeric composites, B2 O3 /PI composite films, were formed by an in-situ thermal conversion. The morphology of B2 O3 /PI composite films were investigated by SEM, EDS and TEM. TGA and DMA were used to monitor the thermal properties of B2 O3 /PI composite films. The mechanical properties of the B2 O3 /PI composite films were characterized by tensile testing. The results indicated that the addition of B2 O3 nanoparticles could significantly improve the thermal and mechanical properties of B2 O3 /PI composite films. Graphical abstract: B2 O3 /PI composite films prepared by in-situ thermal conversion showed greatly improvement on thermal and mechanical properties. Highlights: In-situ thermal conversion to prepare B2 O3 nanoparticles and B2 O3 /PI composite films. B2 O3 nanoparticle size is below 10 nm. Great improvement on thermal stability. Significant enhancement on mechanical properties.