Comparative thermal decomposition kinetic analysis of the biodegradable terpolymer poly(lactide-co-propylene carbonate) applied by various theoretical models

2018 ◽  
Vol 71 ◽  
pp. 95-100 ◽  
Author(s):  
Guojia Huang ◽  
Jinmei Lin ◽  
Bo Yang ◽  
Maodong Li ◽  
Yujie Li ◽  
...  
2008 ◽  
Vol 24 (06) ◽  
pp. 1090-1094
Author(s):  
MA Wei ◽  
◽  
◽  
WANG Su ◽  
CUI Ji-Ping ◽  
...  

2012 ◽  
Vol 182-183 ◽  
pp. 1575-1580 ◽  
Author(s):  
Juan Wang ◽  
Da Bin Liu ◽  
Xin Li Zhou

The certain nitrate ester explosive has been tested by TG at the heating rates of 10, 15, 20, 25K•min-1. Basing on the TG experiment results the thermal decomposition activation energy has been calculated by the methods of Ozawa, KAS and iteration. And the thermal decomposition mechanism function of the explosive with 38 kinds of dynamic function was deduced by the method of integration. The results show that the thermal decomposition mechanism of the nitrate ester is chemical reaction mechanism. The thermal decomposition kinetic parameters such as average activation energy Ea and pre-exponential factor A are 133.23×103 J•mol-1 and 3.191×107 s-1 respectively.


2010 ◽  
Vol 152-153 ◽  
pp. 184-191 ◽  
Author(s):  
Dong Lian Chen ◽  
Shao Mei Ma ◽  
Hui Cheng Yu ◽  
Ai Qun Yuan ◽  
An Ping Liao ◽  
...  

Thermal decomposition kinetic reaction parameters of KZn2(PO4)(HPO4) was investigated by non-isothermal measurement used in a multivariate non-linear regression analysis. The anticorrosive performance of the phosphate extracts in different pH 3.5% NaCl was studied by polarization and open circuit potential measurements. Kinetics analysis shows that the decomposition of KZn2(PO4)(HPO4) acts as a double-step reaction of : a n order autocatalytic reaction (Cn) with n =1.0791, E1 = 365.06 kJ/ mol, A1 =8.69×1022s−1 is followed by a expended Prout-Tompkins reaction (Bna) with n=2.6548, E2 = 390.91 kJ /mol, A2 = 5.37×1024 s−1. In different pH 3.5% NaCl extracts, KZn2(PO4)(HPO4) functions as a cathodic inhibitor on steel and is even superior to other phosphates in efficiency. The inhibiting efficiency of the pigments on steel decrease in the order: KZn2(PO4)(HPO4) > aluminum zinc phosphate > zinc phosphate ≧ aluminum triphosphate


2014 ◽  
Vol 589 ◽  
pp. 270-277 ◽  
Author(s):  
I. Ben Talouba ◽  
N. Bensahlam ◽  
H. Medjkoune ◽  
N. Mouhab ◽  
L. Balland ◽  
...  

Author(s):  
Fatemeh Najarnia ◽  
Fatemeh Ahmadpoor ◽  
Samaneh Sahebian ◽  
Jacqueline A. Johnson ◽  
Saeed Kamali ◽  
...  

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