Journal
POLYMER ENGINEERING AND SCIENCE
Volume 58, Issue 3, Pages 272-279Publisher
WILEY
DOI: 10.1002/pen.24564
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Funding
- National Natural Science Foundation of China [51273050]
- National Small and Mid-sized Enterprise Technology Innovation Fund Project [13C26212301440]
- Fundamental Research Funds for the Central Universities [2572015BX04]
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The effects of -ray radiation on PBO fibers and its composite materials have been investigated, the results showed that the microstructure and the performance of radiated PBO fibers have been improved with 30-120 kGy radiation dose, crosslinking reactions came from PBO polymer molecule chains and micro-fibrils. As a result, the molecular weight the thermal stability were increased, the tendency of micro-fibrils to split-off also decreased, the hook force of radiated PBO fibers increased by 14.0% without tensile strength loss, and the nano-compression modulus and the flexure strength of radiated PBO fiber composites also increased by 21.0% and 22.7%, respectively. The work indicated that -ray radiation could synchronously strengthen the microstructure and improve the properties of PBO fibers. POLYM. ENG. SCI., 58:272-279, 2018. (c) 2017 Society of Plastics Engineers
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