کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5179096 1502508 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structure and linear viscoelasticity of polymer nanocomposites with agglomerated particles
ترجمه فارسی عنوان
ساختار و ویسکلوالاستیک خطی نانوکامپوزیتهای پلیمری با ذرات آگلومرد
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی


- A new image analysis method and a rheological method were suggested to determine the local volume fraction inside agglomerates.
- The nanocomposites with aggregated particles is regarded as an emulsion.
- A two-phase model was suggested to describe the linear viscoelasticity of polymer nanocomposites.

The connection between the structures and the linear viscoelasticity was revealed in this work for polymer nanocomposites containing agglomerated particles. A new image analysis method using the greyscale histogram of TEM images was suggested to determine the local volume fraction of nanoparticles inside an agglomerate, which represents the degree of agglomeration. It is found that the local volume fraction of nanoparticles is strongly related to the particle-polymer interaction. Such result was justified by a new rheological analysis based on the recently suggested modulus decomposition in the linear viscoelastic properties of polymer nanocomposites, from which the combined shift factor due to the hydrodynamic effect was used to quantify the local volume fraction of nanoparticles. Moreover, a two phase model was suggested to describe the linear viscoelasticity of such polymer nanocomposites. The success of this model in different polymer nanocomposites implies the rationality to regard the isolated agglomerate as a composite droplet in the polymer matrix.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 98, 19 August 2016, Pages 190-200
نویسندگان
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