| Autor: |
Longshan Bai, Changlin Cao, Liren Xiao, Huibin Cheng, Zhen Liu, Xiaoli Sun, Qiao Xiao, Songwei Yang, Guoliang Lin, Qingrong Qian, Qinghua Chen |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Polymer Testing, Vol 111, Iss , Pp 107597- (2022) |
| Druh dokumentu: |
article |
| ISSN: |
0142-9418 |
| DOI: |
10.1016/j.polymertesting.2022.107597 |
| Popis: |
Good interfacial adhesion is one of the key factors to ensure the excellent performance of composite materials. However, the interfacial effect of fiber-polymer composites remain incompletely understood. Herein, a self-designed mold was used to prepare UHMWPE (Ultra-high molecular weight polyethylene)-fiber/LDPE (Low density polyethylene)-matrix (LU) and PET (polyethylene terephthalate)-fiber/LDPE-matrix composite materials (LP). The interfacial bonding effect was explored by the interfacial shear strength (IFSS), and the interfacial structure and failure mechanism during the fiber pull-out process were analyzed by the combination of experiment and finite element simulation. The results show that the IFSS of LU (3.59 MPa) is 3 times greater than that of LP (1.18 MPa), giving rise to a higher tensile strength. Moreover, Raman mapping and DSC results suggest that UHMWPE-fiber act as nucleation sites to improve the orientation and crystallization of LDPE molecular chains, generating an obvious interfacial transition zone between UHMWPE-fiber and LDPE, while no obvious interfacial transition zone is found between PET-fiber and LDPE. These findings will be expected to give some guidelines for the design and manufacturing high-performance fiber-polymer composites. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
Full Text from ScienceDirect