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Properties of bamboo flour/high-density polyethylene composites reinforced with ultrahigh molecular weight polyethylene

机译：Properties of bamboo flour/high-density polyethylene composites reinforced with ultrahigh molecular weight polyethylene

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In order to improve the properties of bamboo-plastic composites (BPCs), bamboo flour/high-density polyethylene (HDPE) composites were reinforced with ultrahigh molecular weight polyethylene (UHMWPE). The effects of UHMWPE on properties of composites were studied. The crystallinity of composites decreased slightly. Compared with non-UHMWPE added bamboo powder/HDPE composite, the composite with 6 wt % UHMWPE, showed decrease in water absorption to 0.41%, whereas its tensile strength and flexural strength increased to 34.51 and 25.88 MPa, respectively, a corresponding increase of 34.59 and 12.87%. The temperatures corresponding to initial degradation temperature (T-initial) and maximum degradation temperature (T-max) of the composite increased from 282.7 and 467.4 degrees C to 288.5 and 474.7 degrees C respectively. Scanning electron microscopic images showed that UHMWPE was well dispersed and fully extended as long fibers in the composite, forming a "three-dimensional physically cross-linked network structure," which contributed to the improved properties of the composites. (c) 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48971.

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