کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5201617 | 1502900 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Heat stabilising flexible PVC with layered double hydroxide derivatives
ترجمه فارسی عنوان
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کلمات کلیدی
هیدروکسید دو لایه کلرید پلی وینیل)، تثبیت کننده گرما، تجزیه و تحلیل حرارتی،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
The layered double hydroxide ([Mg0.667Al0.333(OH)2](CO3)0.167·mH2O) (LDH) has found application as a heat stabiliser for PVC. Derivatives of this compound were synthesised using a hydrothermal method. Emulsion grade PVC was plasticised with 100 phr diisononyl phthalate and stabilised with 30 phr of the LDH filler additives. Heat stabilities were determined at 200 °C. The dynamic heat stability tests were performed on the plastisols using the torque rheometer method. Static heat stability was evaluated on the fused compounds. It was evaluated from discoloration profiles of strips exposed for various lengths of time to heat in a Metrastat oven. The time dependence of hydrogen chloride evolution was followed with a Metrohm Thermomat instrument. The conventional LDH provided the best dynamic heat stability. However, partial replacement of the magnesium with copper significantly delayed the release of volatile HCl. If instead the replacement was done using zinc, better colour retention was achieved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 113, March 2015, Pages 46-54
Journal: Polymer Degradation and Stability - Volume 113, March 2015, Pages 46-54
نویسندگان
F.J.W.J. (Johan) Labuschagne, Dan Matlhomola Molefe, Walter W. Focke, Isbé van der Westhuizen, Harry Charles Wright, Mikhail David Royeppen,