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Rheological Behavior and Morphologies of Reactively Compatibilized PVDF/TPU Blends

✍ Scribed by Haiying Ma; Zhengrong Xiong; Fengxian Lv; Chan Li; Yuming Yang

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
515 KB
Volume
212
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

Using the comb copolymer PVDF__‐g‐AAc as a compatibilizer, five reactively compatibilized PVDF/TPU blends with different compositions were prepared. During melt blending, the carboxylic acid groups of PVDF‐g‐AAc react with the urethane linkages of TPU to generate the graft copolymers PVDF‐g‐AAc‐g‐__TPU, which lead to compatibilization of the PVDF/TPU blends. The rheological behavior of the compatibilized PVDF/TPU blends can be described by a generalized Zener model. PVDF/TPU 50/50 and PVDF/TPU 30/70 blends show a particle network structure, indicating elastic interactions between the grafted shells of compatibilized PVDF domains. SEM shows that almost all compatibilized PVDF/TPU blends exhibit a dispersion‐type morphology. magnified image

πŸ“œ SIMILAR VOLUMES

Rheological properties, crystallization,
Rheological properties, crystallization, and morphology of compatibilized blends of isotactic polypropylene and polyamide
✍ C. Marco; G. Ellis; M. A. GΓ³mez; J. G. Fatou; J. M. Arribas; I. Campoy; A. Fonte πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 394 KB πŸ‘ 2 views

Blends of isotactic polypropylene (iPP) with the polyamide nylon-6 (N6), prepared by extrusion, were studied with a composition of up to 30% by weight polyamide. In the case of a 70/30 iPP/N6 blend, the influence of a compatibilizing agent based on polypropylene functionalized with maleic anhydride