Investigation of Structure-Properties Relationship of High Performance TPV Based on ENR/TPU

Ekwipoo Kalkornsurapranee; Charoen Nakason; Skulrat Pichaiyut; Claudia Kummerlöwe; Norbert Vennemann

doi:10.4028/www.scientific.net/AMR.844.113

Paper Titles

Dynamic Mechanical and Dielectric Properties of Poly(vinylidene fluoride) and Epoxidized Natural Rubber Blends
p.97

Role of Gel Content on the Structural Changes of Masticated Natural Rubber
p.101

Effect of Mixing Temperature on the Mechanical Dynamic and Morphological Properties of Maleated Natural Rubber/Copolyester Blends
p.105

Mixing Methods Influencing on Properties of Epoxidized Natural Rubber/Polypropylene Thermoplastic Vulcanizates
p.109

Investigation of Structure-Properties Relationship of High Performance TPV Based on ENR/TPU
p.113

Processing of Thermoplastic Vulcanizates Using High Speed Intermeshing-Typed Internal Mixer: Influence of Mixing Patterns
p.117

Assessment of Mixing Efficiency of Intermeshing Rotor Mixers on Morphological and Mechanical Properties and Crosslink Density of Dynamically Vulcanized EPDM/PP Blends
p.122

Properties of Thermoplastic Natural Rubber (TPNR): Influence of Polypropylene Grades on TPNR Properties
p.127

Comparative Study of NR/BR/PP and NR/NBR/PP Ternary Blends for High Abrasion Resistant Thermoplastic Vulcanizates
p.131

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Investigation of Structure-Properties Relationship of High Performance TPV Based on ENR/TPU

Abstract:

Thermoplastic natural rubber based on blending of ENR-50/TPU and un-modified NR/TPU was prepared via dynamic vulcanization technique. Influences types of natural rubber (i.e., un-modified NR and ENR-50) on mechanical and morphological properties of the blends were investigated. It was found that the blends with ENR-50 exhibited superior properties than that of the blend with unmodified NR. This is attributed to the interactions between the functional groups of ENR molecules and polar functional groups in TPU molecules which caused higher interfacial adhesion and interaction between both phases. The chemical interactions were confirmed by ATR-FTIR. Furthermore, it was found that the ENR-50/TPU blend showed smaller and finer grain morphology compared with the un-modified NR/TPU.