Processing-Structure-Property Relationships in Polymer/Boron Nitride Nanotube Composite Fibers for Electronic Packaging Applications.

ABSTRACT: Boron nitride nanotubes are promising materials for polymeric composites due to their electrical insulation and thermal conductivity properties. In this work, boron nitride nanotubes (BNNTs) are dispersed in a polymer solution that is then spun and drawn to make polymeric fibers with aligned bundles of long BNNTs. These polymer/BNNT fibers are then studied to determine the relationship among processing, structure, and properties. A sonication-centrifuge procedure was conducted to preserve longer BNNTs within the polymer structure and improve the alignment of BNNTs within the fiber. Herein, changes in the internal structure of PAN/BNNT fiber are mapped, highlighting the importance of the dry-jet wet spinning air gap and cold and hot drawing stages to achieve high orientation of BNNTs and a

SUBMITTER: Smith CL 

PROVIDER: S-EPMC12481483 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature