Journal
POLYMER TESTING
Volume 59, Issue -, Pages 371-376Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymertesting.2017.02.021
Keywords
Nondestructive evaluations; FTIR imaging; Morphology; UHMWPE/Recycled-PA6 blends; DMA analysis
Funding
- National Natural Science Foundation of China [51272110]
- Natural Science Foundation of Heilongjiang Province [E201101]
- Qiqihar industrial research project [GYGG-201502]
- Guangdong Provincial Natural Science Foundation of China [2015A030313543]
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The noninvasive and nondestructive Fourier transform infrared (FTIR) imaging and dynamic mechanical analysis (DMA) are developed in this work to evaluate the microstructure-related properties of UHMWPE/Recycled-PA6 blends. FFIR imaging which is of in-situ and visualizing capabilities is shown to be extremely valuable in determining the phase structure of a multiphase system. It is found that small quantities of the HDPE-g-MAH compatibilizer could significantly improve the miscibility of the two immiscible polymers. It is further proved that in the UHMWPE/R-PA6 blends the R-PA6 phase distributes continuously, while the UHMWPE phase disperses in a discontinuous manner. Moreover, the blends with 44 wt% R-PA6 is found to exhibit an optimal miscibility behavior. This work demonstrates that FFIR imaging is a direct method in visualizing the miscibility of polymer blends. The combined FTIR imaging and DMA testing offers a new approach for qualitative and quantitative investigations on polymer blends with complex microstructures. (C) 2017 Elsevier Ltd. All rights reserved.
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