کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7824045 | 1502861 | 2018 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Stability, mechanism and unique “zinc burning” inhibition synergistic effect of zinc dehydroacetate as thermal stabilizer for poly(vinyl chloride)
ترجمه فارسی عنوان
پایداری، مکانیسم و منحصر به فرد؟ مهار اثر سینرژیک روی دی هیدرواستاتیک به عنوان ترمیم کننده حرارتی برای پلی وینیل کلرید
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
A novel kind of poly(vinyl chloride) (PVC) thermal stabilizer, zinc dehydroacetate (ZnL2), was designed and synthesized using zinc acetate and dehydroacetic acid (DA) as raw materials, which had a unique "zinc burning" inhibition synergistic effect with calcium stearate (CaSt2) that was 8 times greater than that of the CaSt2/ZnSt2 combination reference stabilizer. The structure and stability of ZnL2 were confirmed by Fourier-transform infrared, elemental analysis, and thermogravimetric analysis. The stability distinction of ZnL2 and ZnSt2, and the stable effect of the two systems after being combined with CaSt2, were investigated by the Congo red test, solution acidity test, and discoloration test. The results showed that in the Congo red test the stability time of ZnL2 was 8.9â¯min, which was 1.3 times that of ZnSt2, and the stability time of ZnL2/CaSt2 was 13â¯min, which was 1.4 times that of a traditional Ca/Zn stabilizer. Furthermore, the stability time of ZnL2 was 36â¯min in the solution acidity test, which was 2 times higher than that of ZnSt2, and the stability time was increased to 196â¯min after combining it with CaSt2, which was 8 times greater than that of the Ca/Zn stabilizer. Moreover, the dehydrochlorination rate of PVC stabilized with ZnL2 was slower than with other stabilizers. The system with ZnL2/CaSt2 could effectively delay “zinc burning” because of the excellent synergistic effect in the thermal aging test, with a stability time as long as 140â¯min. At the same time, the mechanism of PVC stabilization by ZnL2 was studied in two simple experiments, and the stabilization mechanism of ZnL2 in PVC degradation was speculated on.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 152, June 2018, Pages 228-234
Journal: Polymer Degradation and Stability - Volume 152, June 2018, Pages 228-234
نویسندگان
Bozhen Wu, Yating Wang, Si Chen, Muyan Wang, Meng Ma, Yanqin Shi, Xu Wang,