Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5205460 | Polymer Testing | 2017 | 31 Pages |
Abstract
The impact fracture strength, melt volume flow rate (MVR) and melt density of polypropylene composites filled separately with two flame retardants (aluminum hydroxide and magnesium hydroxide), zinc borate (ZB), polyolefin elastomer (POE) and nanometer calcium carbonate (nano-CaCO3) were measured to identify the effects of the flame-retardant content on the flow properties and impact fracture toughness. The results showed that the MVR decreased with increasing flame-retardant weight fraction (Ïf) while it increased with increasing load; the melt density increased approximately linearly with increasing Ïf while the influence of the ZB, nano-CaCO3, POE and load on the melt density was insignificant. The V-notched Izod impact strength increased when Ïf was lower than 30Â wt.%, then it decreased slightly with increasing Ïf. The value of the V-notched Izod impact strength reached a maximum at Ïf about 20Â wt.%.
Related Topics
Physical Sciences and Engineering
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Organic Chemistry
Authors
Ji-Zhao Liang,