Effect of maleimide curing on mechanical properties of ground tyre rubber/waste polypropylene blends

被引：6

作者：

Egodage, S. M. ^{[2
]}

Harper, J. F. ^{[1
]}

Walpalage, S. ^{[2
]}

机构：

[1] Univ Loughborough, Dept Mat, Loughborough LE11 3TU, Leics, England

[2] Univ Moratuwa, Dept Chem & Proc Engn, Moratuwa 10400, Sri Lanka

来源：

PLASTICS RUBBER AND COMPOSITES | 2012年 / 41卷 / 08期

关键词：

Ground tyre rubber; Rubber-thermoplastic blends; Waste polypropylene; Maleimide cure; Mechanical properties; THERMOPLASTIC ELASTOMERS; MORPHOLOGICAL PROPERTIES; IMPACT STRENGTH; CROSS-LINKING; TIRE; POLYMERS;

D O I：

10.1179/1743289811Y.0000000042

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Blends of ground tyre rubber and waste polypropylene with a maleimide curing system (50 : 50 blends of ground tyre rubber/waste polypropylene) were prepared in a Haake Rheocord Polylab System, at 180 degrees C and 90 rev min(-1) for 5 min. The curing agent and the activator used were N, N-9meta-phenylene dimaleimide (HVA-2) and di(tert-butylperoxyisopropyl) benzene (DTBPIB) respectively. The HVA-2 level varied from 0 to 5 parts per hundred parts (pphp), while the DTBPIB level varied from 0 to 1 pphp. Melt viscosity, tensile strength and elongation at break showed an increase with HVA-2 content, while the impact energy showed an optimum at 3 pphp level. The addition of the DTBPIB increased melt viscosity further and produced a homogeneous phase morphology of the blends. Impact energy improved with the DTBPIB level, while elongation at break and tensile strength showed an optimum at 0.6 pphp. Swelling behaviour and gel/sol from the boiled xylene extractions were studied, and the results obtained were correlated with the impact and tensile properties.

引用

页码：332 / 340

页数：9

共 31 条

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