Ultra-strong gel-spun ultra-high molecular weight polyethylene fibers filled with chitin nanocrystals
| Autor: | Liang Hong, Haojun Xu, Zongbao Wang, Qun Gu, Minfang An, You Lv, Tianchen Duan, Feng Tian |
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| Rok vydání: | 2016 |
| Předmět: |
Ultra-high-molecular-weight polyethylene
Thermogravimetric analysis Materials science Nanocomposite Scanning electron microscope General Chemical Engineering 02 engineering and technology General Chemistry Polyethylene 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Crystallinity chemistry.chemical_compound Differential scanning calorimetry chemistry Ultimate tensile strength Composite material 0210 nano-technology |
| Zdroj: | RSC Advances. 6:20629-20636 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c5ra25786g |
| Popis: | Ultra-high molecular weight polyethylene (UHMWPE)/chitin nanocrystals (CNC) and UHMWPE/acetylated chitin nanocrystals (ACNC) fibers were prepared. The addition of CNC and ACNC significantly enhanced the ultimate tensile strength and Young's modulus of the UHMWPE fibers matrix. Compared with that of pure UHMWPE fibers, the ultimate tensile strength and Young's modulus of UHMWPE/CNC fibers are increased by about 14.5% and 17.0%, respectively, with the incorporation of 1.0 wt% CNC. Furthermore, with the addition of 1.0 wt% ACNC, the ultimate tensile strength and Young's modulus of UHMWPE/ACNC fibers are improved by 15.8% and 21.3%, respectively. To understand the mechanism of CNC and ACNC reinforcing UHMWPE fibers, the thermal, crystallinity, orientation and shish structure of pure UHMWPE fibers, UHMWPE/CNC fibers, and UHMWPE/ACNC fibers were determined by employing a differential scanning calorimeter (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), wide-angle X-ray diffraction (WAXD), and small-angle X-ray scattering (SAXS) analyses. |
| Databáze: | OpenAIRE |
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