کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
830612 1470357 2012 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of kaolin–metal oxides core–shell pigments on the properties of styrene–butadiene rubber composites
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Effect of kaolin–metal oxides core–shell pigments on the properties of styrene–butadiene rubber composites
چکیده انگلیسی

This study investigated the effects of core–shell kaolin–metal oxide pigments on the rheological, physico-mechanical and dielectric properties of styrene–butadiene rubber composites. In this way, newly prepared core–shell pigments based on kaolin as the core representing 90% of the whole pigment was covered with different metal oxides (CaO, MgO and CaO⋅MgO) comprising the shell which represents only 10% of the prepared pigments were incorporated with different concentrations in styrene–butadiene (SBR) rubber composites. Studying the different properties of pigmented and unpigmented SBR composites were done. Scanning electron microscopy (SEM) was used to feature out the surface morphology. Addition of the new pigments increased the tensile strength and strain energy, while elastic modulus was decreased. This study revealed that there is a significant effect of the new prepared pigments on SBR properties and the optimum pigment loading was 40 phr for CaO/kaolin, while it was 2.5 phr for MgO/kaolin. The dielectric results also showed that, the values of ε′ (relative permittivity) and ε′′ (dielectric loss) increased with increasing core shell content. Moreover, the samples containing MgO/kaolin and MgO⋅CaO/kaolin showed promising dielectric properties with low relative permittivity and electrical insulating properties. The different measurements showed good agreement in their results.


► SBR was loaded with MeO/K pigments.
► CaO/K mixes showed the best properties.
► CaO⋅MgO/K possessed the least.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 40, September 2012, Pages 343–355
نویسندگان
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