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首页> 外文期刊>Journal of Polymers and the Environment >Recycled Poly(Ethylene Terephthalate)/Clay Nanocomposites: Rheology, Thermal and Mechanical Properties
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Recycled Poly(Ethylene Terephthalate)/Clay Nanocomposites: Rheology, Thermal and Mechanical Properties

机译：再生聚对苯二甲酸乙二酯/粘土纳米复合材料：流变，热和机械性能

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摘要

Polymer nanocomposites containing recycled poly(ethylene terephthalate) (r-PET) as a polymer matrix and Cloisite(A (R)) 10A as a reinforcement were prepared through melt compounding. First, a masterbatch containing 20 wt% of Cloisite(A (R)) 10A clay was prepared and later diluted with neat r-PET to obtain nanocomposites containing 1, 2, 4 and 6 wt% of clay. The rheological, thermal, mechanical and morphological properties of the PET-clay nanocomposites were characterized. The complex viscosity of the nanocomposites gradually increases with increase in clay content. The storage modulus and loss modulus of nanocomposite containing 1 wt% of clay was similar to neat r-PET but increases with increase in clay content. Incorporation of clay into a r-PET slightly increases the crystallisation temperature and degree of crystallinity due to the heterogenous nucleating effect of clay. Thermal stability and glass transition temperature of nanocomposite containing Cloisite(A (R)) 10A clay at lower loadings was similar to r-PET and gradually decreases with increase in clay content. The tensile properties of PET-clay nanocomposites increased gradually with clay content. The impact strength of nanocomposites was not altered until 4 wt% and decreased at 6 wt%. Morphological investigations indicated homogeneous dispersion of clay in r-PET.
机译：通过熔融混合制备了包含再循环的聚对苯二甲酸乙二酯（r-PET）作为聚合物基质和Cloisite（A）10A作为增强材料的聚合物纳米复合材料。首先，制备包含20重量％的Cloisite（A）10A粘土的母料，然后用纯净的r-PET稀释以获得包含1、2、4和6重量％的粘土的纳米复合材料。表征了PET-粘土纳米复合材料的流变，热，机械和形态学性质。随着粘土含量的增加，纳米复合材料的复数粘度逐渐增加。含有1 wt％粘土的纳米复合材料的储能模量和损耗模量与纯r-PET相似，但随粘土含量的增加而增加。由于粘土的异相成核作用，将粘土掺入r-PET中会稍微提高结晶温度和结晶度。含有较低含量的Cloisite（A）10A粘土的纳米复合材料的热稳定性和玻璃化转变温度与r-PET相似，并且随着粘土含量的增加而逐渐降低。 PET-粘土纳米复合材料的拉伸性能随着粘土含量的增加而逐渐增加。纳米复合材料的冲击强度直到4wt％才改变，而在6wt％时才降低。形态学研究表明，粘土在r-PET中均匀分散。

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