کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
673170 1459493 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of antioxidant on the thermal–oxidative degradation behavior and oxidation stability of synthetic ester
ترجمه فارسی عنوان
تأثیر آنتی اکسیدان بر رفتار ترمیم اکسیداتیو ترمالال و پایداری اکسیداسیون استرهای ترکیبی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی


• Influence of antioxidants on the thermal–oxidative degradation of DEHS was studied.
• Oxidative stability of antioxidants in DEHS was also evaluated.
• Antioxidants could increase the E values of thermal–oxidative degradation of DEHS.
• Good corresponding relationship was observed between these analytical techniques.

The influence of pentaerythritol tetrakys 3-(3,5-ditert-butyl-4-hydroxyphenyl) propionate (1010) and octylated/butylated diphenylamine (L57) on the thermal–oxidative degradation of di-2-ethylhexyl sebacate (DEHS) was studied by using model-free thermo analysis under air atmosphere. Activation energies about the thermal–oxidative degradation of lubricants were evaluated by Kissinger–Akahira–Sunose (KAS) method. Pressure drop test (PDT) and pressurized differential scanning calorimetry (PDSC) tests were also employed to study their antioxidant performance in DEHS. The results showed that the addition of 1010 and L57 could enhance the oxidation stability of DEHS and increase the activation energy of thermal–oxidative degradation especially at the initial stage of thermal–oxidative decomposition. Meanwhile, a good corresponding relationship was found between model-free method and traditional test methods.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 591, 10 September 2014, Pages 16–21
نویسندگان
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