Evaluation of the Thermal Stabilization Effect of the Bis (Mercaptoethanol Oleate) Dimethyl Tin on Polyvinyl Chloride

Liu, Jianping; Shang, Hong; Song, Xia; Yuan, Wei; Zhou, Shenghu

doi:10.4028/www.scientific.net/amr.581-582.81

Cited by 1 publication

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dynamic thermal stability time of PVC with Zn(Arg)(St) is slightly shorter than that of PVC with Zn(Arg) 2 . Importantly, compared with other thermal stabilizers reported, 30,31 Zn(Arg)(St) is outstanding as a one‐component thermal stabilizer. The reason is that Zn(Arg)(St) not only has the strong ability to replace the unstable chlorine atoms in the PVC chains, but also could absorb the HCl produced by PVC degradation after the replacement.…”

Section: Resultsmentioning

confidence: 91%

A new organic zinc thermal stabilizer containing two kinds of anions with excellent thermal stability on polyvinyl chloride by multistep substitution

Shi

Chen

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

A new kind of highly efficient organic zinc thermal stabilizer for polyvinyl chloride (PVC), zinc arginine stearate [Zn(Arg)(St)], is designed by introducing the arginine and stearate to the same zinc atoms to regulate the binding energy between anions and cation. Gaussian soft is used to calculate the binding energy.The results of Fourier transform infrared spectra, elemental analysis, thermogravimetric analysis, and differential scanning calorimetry show that Zn(Arg)(St) has been successfully synthesized. Zn(Arg)(St) stabilized PVC displays excellent Congo red, static and dynamic thermal stability time, especially the excellent initial whiteness and whiteness retention time. The thermal stability mechanism of Zn(Arg)(St) attributes to the different binding energy between the two anions and zinc cation, which results in Zn(Arg)(St) continuously replacing the unstable chlorine atoms step by step by Arg and St anions. Moreover, the amino group in Arg could complex ZnCl 2 to inhibit the "zinc burning" effect, and the guanidine group could absorb HCl to inhibit the "autocatalytic effect" of HCl. In addition, Zn(Arg) (St) has a remarkable lubrication effect, which also enhances the thermal stability of PVC. Thus, Zn(Arg)(St) is an environmentally friendly thermal stabilizer for PVC with an excellent thermal stability effect. Importantly, this work also proposes a new method to design highly efficient thermal stabilizers for PVC.

show abstract

Section: Resultsmentioning

confidence: 91%