Journal
POLYMER TESTING
Volume 55, Issue -, Pages 10-16Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymertesting.2016.08.006
Keywords
UHMWPE fiber; Potassium permanganate; Natural rubber; Composites; Mechanical properties
Funding
- National Science Foundation of Ningbo, China [2016A610046]
- K.C.Wong Magna Fund in Ningbo University
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The effects of surface treatment using potassium permanganate on ultra-high molecular weight polyethylene (UHMWPE) fibers reinforced natural rubber (NR) composites were investigated. The results showed the surface roughness and the oxygen-containing groups on the surface of the modified fibers were effectively increased. The NR matrix composites were prepared with as-received and modified UHMWPE fibers added 0-6 wt.% The treated fibers increased the modulus and tensile stress at a given elongation. The tear strength increased with increasing fiber mass fraction, attained maximum values at 4 wt%. The hardness of composites exhibited continuous increase with increasing the fiber content The dynamic mechanical tests showed that the storage modulus and the tangent of the loss angle were decreased in the modified UHMWPE fibers/Nil composites. Several micro-fibrillations between the treated fiber and NR matrix were observed, which meant the interfacial adhesion strength was improved. (C) 2016 Elsevier Ltd. All rights reserved.
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