Non-isothermal crystallization kinetics and thermal behaviour of PA12/SEBS-g-MA blends

Bulletin of materials science

J-M Lopez Cuesta¹  Khushboo Rinawa²  S N Maiti²  R Sonnier¹ 

[1] Centre des Matériaux de Grande Diffusion, Ecole des Mines d’Alès, 6, Avenue de Clavières, 30318 Alès Cedex, France$$Centre des Matériaux de Grande Diffusion, Ecole des Mines d’Alès, 6, Avenue de Clavières, 30318 Alès Cedex, FranceCentre des Matériaux de Grande Diffusion, Ecole des Mines d’Alès, 6, Avenue de Clavières, 30318 Alès Cedex, France$$;Centre for Polymer Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110 016, India$$Centre for Polymer Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110 016, IndiaCentre for Polymer Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110 016, India$$

关键词: Crystallization kinetics;    Avrami;    PA12;    DSC;    activation energy.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The thermal behaviour and crystallization kinetics of PA12/SEBS-g-MA blends were investigated under non-isothermal and isothermal conditions using thermogravimetric analysis and differential scanning calorimetry, respectively. The macrokinetic model given by Avrami was used to analyse both the nonisothermal and isothermal crystallization kinetics of the blends. The value of the Avrami exponent during non-isothermal crystallization predicted that pure PA12 and PA12/SEBS-g-MA blends show spherulitic growth with random nucleation of crystal structures as the n-values lie between 3 and 4. The slight nucleating effect of SEBS-g-MA was showed by nucleating activity calculated by the Dobreva and Gutzowa method.

【 授权许可】

Unknown