Preparation, structure and properties of poly(p-phenylene benzobisoxazole) composite fibers reinforced with graphene

被引：14
|
作者：
Jeong, Young Gyu [1 ]
Baik, Doo Hyun [1 ]
Jang, Jin Woo [2 ]
Min, Byung Gil [2 ]
Yoon, Kwan Han [3 ]
机构：
[1] Chungnam Natl Univ, Dept Adv Organ Mat & Text Syst Engn, Taejon 305764, South Korea
[2] Kumoh Natl Inst Technol, Dept Mat Design Engn, Gyeongbuk 730701, South Korea
[3] Kumoh Natl Inst Technol, Dept Polymer Sci & Engn, Gyeongbuk 730701, South Korea
来源：
MACROMOLECULAR RESEARCH | 2014年 / 22卷 / 03期
基金：
新加坡国家研究基金会;
关键词：
poly(p-phenylene benzobisoxazole) (PBO); graphene; composite fiber; dry-jet wet-spinning; thermal stability; mechanical property; FUNCTIONALIZED GRAPHENE; POLYMERIZATION; PBO; DEFORMATION; COPOLYMER; SHEETS;
D O I：
10.1007/s13233-014-2043-8
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Graphene-reinforced poly(p-phenylene benzobisoxazole) (PBO) composite fibers were manufactured via dry-jet wet-spinning of PBO/graphene mixtures in poly(phosphoric acid) (PPA), which were reaction products prepared by the in situ polymerization of 4,6-diaminoresorcinol dihydrochloride and terephthaloyl chloride in the presence of PPA solvent and exfoliated graphene sheets. The content of graphene sheets in the as-spun fibers was adjusted to 0.0 similar to 2.0 wt%. The molecular structure, crystalline order, and morphology of the as-spun fibers of pristine PBO and PBO/graphene composites were identified using FTIR, X-ray diffraction, and electron/optical microscopy. The thermal stability and tensile mechanical properties of the composite fiber with 0.2 wt% graphene were found to be significantly improved compared to the pristine PBO fiber.
引用
收藏
页码：279 / 286
页数：8
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