阻燃剂
膨胀的
聚丙烯
材料科学
复合材料
钢筋
聚合物
作者
Katalin Bocz,Dániel Ábel Simon,Tamás Bárány,György Marosi
出处
期刊:Polymers
[MDPI AG]
日期:2016-08-08
卷期号:8 (8): 289-289
被引量:12
摘要
The flame retardant synergism between highly stretched polymer fibres and intumescent flame retardant systems was investigated in self-reinforced polypropylene composites. It was found that the structure of reinforcement, such as degree of molecular orientation, fibre alignment and weave type, has a particular effect on the fire performance of the intumescent system. As little as 7.2 wt % additive content, one third of the amount needed in non-reinforced polypropylene matrix, was sufficient to reach a UL-94 V-0 rating. The best result was found in self-reinforced polypropylene composites reinforced with unidirectional fibres. In addition to the fire retardant performance, the mechanical properties were also evaluated. The maximum was found at optimal consolidation temperature, while the flame retardant additive in the matrix did not influence the mechanical performance up to the investigated 13 wt % concentration.
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