A “one stop” thermal stabilizer, zinc arginine complex, with excellent comprehensive thermal stability effect on poly(vinyl chloride)

2019 ◽  
Vol 167 ◽  
pp. 58-66 ◽  
Author(s):  
Yanqin Shi ◽  
Songyan Lu ◽  
Biao Ma ◽  
Meng Ma ◽  
Huiwen He ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Vinyl Chloride ◽  
Thermal Stabilizer ◽  
Poly Vinyl Chloride ◽  
One Stop ◽  
Stability Effect

scholarly journals Development and Investigation of Lanthanum Sulfadiazine with Calcium Stearate and Epoxidised Soyabean Oil as Complex Thermal Stabilizers for Stabilizing Poly(vinyl chloride)

Polymers ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 531 ◽  
Author(s):  
Qiufeng Ye ◽  
Xiaotao Ma ◽  
Bobin Li ◽  
Zhe Jin ◽  
Yingying Xu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Vinyl Chloride ◽  
Calcium Stearate ◽  
Gravimetric Analysis ◽  
Thermal Stabilizer ◽  
Poly Vinyl Chloride ◽  
Water As Solvent ◽  
Vis Spectroscopy ◽  
Thermal Stability Of

Lanthanum sulfadiazine (LaSD) was synthesized from sulfadiazine and lanthanum nitrate using water as solvent under alkaline conditions, and was used as a novel rare earth thermal stabilizer to stabilize poly(vinyl chloride) (PVC). The structure of LaSD was characterized by elemental analysis (EA), Fourier transform infrared spectroscopy (FTIR) and thermo- gravimetric analysis (TGA). The influence of lanthanum sulfadiazine with calcium stearate (CaSt2) and epoxidized soybean oil (ESBO) on stabilizing PVC was studied by using the Congo red test, oven discoloration test, UV-vis spectroscopy and thermal decomposition kinetics. The results showed that the addition of LaSD as a thermal stabilizer can significantly improve the initial whiteness and long-term stability of PVC. In addition, the synergies between LaSD, ESBO, and CaSt2 can provide outstanding improvement in the long-term thermal stability of PVC. When the ratio of LaSD/ESBO/CaSt2 is 1.8/0.6/0.6, its thermal stability time is 2193 s which is the best state for stabilizing PVC. Furthermore, comparing the reaction energy (Ea) and the variations in the conjugate double bond concentration in PVC samples, the order of thermal stability of PVC was PVC/LaSD/ESBO/CaSt2 > PVC/LaSD/ESBO > PVC/LaSD. The thermal stability mechanism of LaSD on PVC was studied by the AgCl precipitation method and FTIR spectrum. The results showed that the action of LaSD on PVC was achieved through replacing unstable chlorine atoms and absorbing hydrogen chloride.

scholarly journals Effects of Zeolites on Thermal Stability of Poly(vinyl chloride)

Polymer Korea ◽  
2015 ◽  
Vol 39 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Jiayou Xu ◽  
Qinghua Liang ◽  
Xiumei Xian ◽  
Kaidan Li ◽  
Jie Liu
Keyword(s):  
Thermal Stability ◽  
Vinyl Chloride ◽  
Poly Vinyl Chloride ◽  
Thermal Stability Of
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