1. School of Polymer Science and Engineering Chonnam National University Gwangju 61186 Republic of Korea
2. Institute of Advanced Composite Materials Korea Institute of Science and technology (KIST) Wanju‐gun 55324 Republic of Korea
3. Department of Materials Science and Engineering Korea Advanced institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
4. Korea Testing Laboratory Ansan City 15588 Republic of Korea