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首页> 外文期刊>Journal of Applied Polymer Science >Mechanical properties of mica-filled PBT/ABAS composites
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Mechanical properties of mica-filled PBT/ABAS composites

机译：云母填充PBT / ABAS复合材料的力学性能

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摘要

Tensile properties and Izod impact strength of mica-filled composites of poly(butylene terephthlate) (PBT)/polyacrylonitrile-butyl acrylate-styrene (ABAS) were studied at mica concentration range 0 to 0.14 volume fraction, (φ_f). Tensile properties such as tensile modulus, strength, and breaking strain were normalized by dividing the data with the crystallinity (%) of the major component PBT in the composites and the matrix blends. The normalized relative tensile properties were compared with simple models to evaluate the interphase interactions between the matrix (i.e. PBT/ABAS blend) and the dispersed phase mica. Mica reinforced the blend increasing the tensile modulus and strength with mica concentration while the strain-at-break was increased marginally up to φ_f = 0.04 and decreased beyond this φ_f. The impact strength, however, decreased with increase in φ_f due to enhanced matrix stiffening and lack of plastic deformation of the matrix. Scanning electron microscopic studies revealed good dispersion of mica in the composites. The effect of surface treatment with a zirconate coupling agent, NZ-97, on the above properties has also been examined.
机译：研究了在云母浓度范围为0至0.14（φ_f）的聚对苯二甲酸丁二醇酯（PBT）/聚丙烯腈-丙烯酸丁酯-苯乙烯（ABAS）的云母填充复合材料的拉伸性能和艾佐德冲击强度。通过将数据除以复合材料和基体共混物中主要成分PBT的结晶度（％），可以标准化拉伸性能（例如拉伸模量，强度和断裂应变）。将归一化的相对拉伸性能与简单模型进行比较，以评估基质（即PBT / ABAS混合物）与分散相云母之间的相间相互作用。云母增强了共混物，并随着云母浓度的增加而提高了拉伸模量和强度，而断裂应变则略有增加，直至φ_f= 0.04，然后降低至超过该φ_f。然而，由于增强的基体刚度和基体缺乏塑性变形，冲击强度随φ_f的增加而降低。扫描电子显微镜研究表明云母在复合物中的良好分散。还研究了使用锆酸酯偶联剂NZ-97进行表面处理对上述性能的影响。

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