Effects of miscibility on the morphology and microstructure and mechanical properties of PA66/POE blends

Ming Zhang, Yuncan Zhang, Yinong Lu

科研成果: 期刊稿件文章同行评审

3 引用 (Scopus)

摘要

The effect of maleic anhydride (MAH) grafted POE (Polyolefin Elastomer) on the morphology, micro-structure and mechanical properties of PA66/POE blends was investigated by means of SEM, TEM, DSC and mechanical properties measurement. The results show that the grafted product (POE-g-MAH) can improve the miscibility between PA66 and POE, decrease the particle size of dispersion phase and obviously increase the charpy notched impact strength of these blends. It was found that there are more regular structures in the dispersion phase elastomer particles of PA66/POE-g-MAH blends than those in the particles of PA66/POE blends; the dispersion phase elastomer particles of PA66/POE-g-MAH blends can accelerate crystallization of the matrix, and increase the crystallization temperature Tcd and the crystallization enthalpy ΔHcof the PA66 matrix. In the case when the brittle-ductile transition of the blend occurs, the accelerating action reaches the strongest, and the values of Tcd and ΔHc reach maximum; the faster the cooling rate of the melt specimens, the stronger the accelerating action of the particles.

源语言英语
页(从-至)113-119
页数7
期刊Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
22
5
出版状态已出版 - 10月 2005

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