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Mechanical properties and morphology for polypropylene composites filled with microencapsulated red phosphorus
Author(s) -
Liang JiZhao,
Feng JinQing,
Tsui ChiPong,
Tang ChakYin,
Huang WenFei
Publication year - 2014
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.3248
Subject(s) - materials science , ultimate tensile strength , composite material , izod impact strength test , polypropylene , elongation , modulus , mass fraction , morphology (biology) , toughening , flexural strength , scanning electron microscope , absorption of water , toughness , genetics , biology
The effects of the microencapsulated red phosphorus (MRP) content and specimen thickness on the mechanical properties of the filled polypropylene (PP) composites were studied at room temperature. The results showed that the influence of the MRP on the tensile and impact properties of the composites was significant, and the Young's modulus and impact strength of the composites increased nonlinearly while the tensile strength decreased slightly with increasing the MRP weight fraction; the tensile elongation at break increased outstandingly when the MRP weight fraction was less than 2% and then decreased with increasing the MRP weight fraction. Furthermore, the impact fracture surface was examined by scanning electronic microscope. The results suggested that the toughening effect was attributed to the absorption of impact fracture energy by the microencapsulated layer. Copyright © 2014 John Wiley & Sons, Ltd.