Stability, mechanism and unique “zinc burning” inhibition synergistic effect of zinc dehydroacetate as thermal stabilizer for poly(vinyl chloride)

Wu, Bozhen; Wang, Yating; Chen, Si; Wang, Muyan; Ma, Meng; Shi, Yanqin; Wang, Xu

doi:10.1016/j.polymdegradstab.2018.04.025

Cited by 31 publications

(18 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Figure 2, It can be observed that the stretching vibration peak and symmetric stretching vibration peak of COOH for Or were transferred from 3515.4 and 1271.6 cm −1 to 3415.8 and 1373.9 cm −1 , respectively, after generating Zinc salts. It can also be ascertained that ZnOr 2 has been successfully synthesized [26,27].…”

Section: Resultsmentioning

confidence: 99%

“…Figure 3 shows the Congo red test results of PVC samples containing various thermal stabilizers [26,27]. From the figure, it can be observed that the thermal stability time of pure PVC is about 390 s. After addition of the ZnOr 2 and Ca/Zn thermal stabilizers, the thermal stability times of PVC samples were increased to 500 s and 490 s, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…The thermal stability of the zinc salt stabilizer used in this paper, ZnOr 2 , has a similar effect to the Ca/Zn commercial thermal stabilizer. Hence, it is clear that ZnOr 2 has a strong ability to absorb HCl, and can be applied as an potential thermal stabilizer [27,28].…”

Section: Resultsmentioning

confidence: 99%

“…Figure 4 shows the effects of discoloration for PVC with different kinds of thermal stabilizers at 180 °C in air [27,28]. The PVC strip containing only 3 phr ZnSt 2 showed outstanding initial color, but turned absolutely black within 10 min.…”

Section: Resultsmentioning

confidence: 99%

“…In order to ultimately prove the experimental results of the Congo red and oven discoloration tests, the relationship between weight and time of PVC, PVC/ZnOr 2 , PVC/CaSt 2 /ZnOr 2 , PVC/CaSt 2 /ZnOr 2 /PER, and PVC/ZnSt 2 was characterized by thermogravimetric analysis at a specific temperature about 220 °C for 2 h, and the results are summarized in Figure 16 [27,35]. It can be observed from the figure that the sequence for loss of thermal weight is as follows: PVC/CaSt 2 /ZnOr 2 /PER > PVC/CaSt 2 /ZnOr 2 > PVC/ZnOr 2 > PVC/ZnSt 2 .…”

Section: Resultsmentioning

confidence: 99%

See 4 more Smart Citations

Synthesis and Study of Zinc Orotate and Its Synergistic Effect with Commercial Stabilizers for Stabilizing Poly(Vinyl Chloride)

Feng

Zhan

et al. 2019

Polymers

Self Cite

View full text Add to dashboard Cite

Zinc orotate (ZnOr2), which is a new kind of poly(vinyl chloride) (PVC) stabilizer, is prepared in this work through the precipitation method, and its impact on the thermal stability of PVC is measured by thermogravimetric analysis (TG), Congo red test, and discoloration test. The results exhibit that the thermal stability of PVC is positively enhanced after the addition of ZnOr2. In contrast with a commercial thermal stabilizer, zinc stearate (ZnSt2), a noteworthy improvement was observed that ZnOr2 could postpone the “zinc burning” of PVC. This is principally ascribed to the Or anion in the structure of ZnOr2 being able to absorb the HCl released by PVC, and to supersede unstable chlorine atoms in the structure of PVC. In addition, blending ZnOr2 with calcium stearate (CaSt2) in diverse mass ratios can significantly accelerate the thermal stability of PVC. Optimum performance was achieved with a CaSt2:ZnOr2 ratio of 1.8:1.2. Moreover, an outstanding synergistic effect can be observed when CaSt2/ZnOr2 is coupled with other commercial auxiliary stabilizers. The initial color and long-term stability of PVC including CaSt2/ZnOr2 is significantly increased when pentaerythritol (PER) is added, while dibenzoylmethane (DBM) can only improve its long-term thermal stability.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Synthesis and Study of Zinc Orotate and Its Synergistic Effect with Commercial Stabilizers for Stabilizing Poly(Vinyl Chloride)

Feng

Zhan

et al. 2019

Polymers

Self Cite

View full text Add to dashboard Cite

show abstract

Effect ofCaSt₂/ESOthermal stabilizers on the preparation, thermal stability, and thermal stability mechanism of self‐made vinylidene chloride‐methyl acrylate copolymer resin film

Wang

Zhang

et al. 2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

The effects of heat stabilizer systems on the thermal stability and processability of self‐made vinylidene chloride‐methyl acrylate copolymer (PVDC‐MA) film were investigated via accelerated aging test, Congo red test, FTIR, DMA, and TG‐FTIR. These results displayed that CaSt2/ESO performed excellently in synergistic inhibition of PVDC‐MA thermal degradation. Especially, when the mass ratio of CaSt2/ESO was 1.5:1.5, the static thermal stability time of PVDC‐MA was increased from 14.5 to 46.5 min. The kinetic calculation results also verified this point. Compared with pure PVDC‐MA, the average apparent activation energy (Ēa) of thermal degradation reaction of PVDC‐MA stabilized by CaSt2/ESO enhanced from 144.1 to 169.7 kJ mol−1 (α0 ≤ 0.1), indicating that the thermal stability of PVDC‐MA in the initial thermal degradation stage was dramatically improved by CaSt2/ESO. Moreover, the mechanism of the effect of CaSt2/ESO on PVDC‐MA in the initial thermal degradation stage was further explored by the generalized master plot methods. The kinetic analysis result suggested that under the synergistic effect of CaSt2/ESO, the mechanism model followed by the degradation of PVDC‐MA changed essentially (the three‐dimensional diffusion thermal degradation mechanism transformed into two‐dimensional diffusion).

show abstract

A “one‐pot” method for synthesizing zinc tryptophan and its derivatives as highly efficient PVC thermal stabilizer with excellent mechanical properties

Cui,

Jiang,

Leng

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

Zinc Tryptophan (Trp‐Zn) and zinc N‐(salicylic) tryptophan (SalTrp‐Zn) were synthesized from tryptophan, zinc acetate, and salicylic aldehyde by one‐pot method, respectively. The structure was analyzed by FT‐IR, 1H NMR, and elemental analysis. PVC samples were prepared by stirring method and solvent film process, and then the thermal properties of PVC samples were studied by thermal aging chamber test, Congo red test, electrical conductivity test, and thermogravimetric analysis (TGA). The thermal stability of Trp‐Zn and SalTrp‐Zn stabilized PVC samples was better than calcium and zinc soaps used in industry. The thermal stability time was up to 80 min, and it was a long‐acting thermal stabilizer. After the addition of CaSt2 and Trp‐Zn stabilizer in different proportions, the thermal stability of PVC was obviously improved, and the initial whiteness of the film was improved after the combination of Trp‐Zn/SalTrp‐Zn. In addition, the tensile test verified that the PVC samples stabilized by Trp‐Zn and SalTrp‐Zn had the highest elongation at break. The addition of Trp‐Zn can reduce the elastic modulus of PVC, effectively improve the mechanical properties of PVC, and make the PVC film have better toughness and elasticity. Through DMA and EDS tests, it can be seen that Trp, SalTrp‐Zn had good compatibility with PVC and DOP. The quantum chemical calculation of Trp‐Zn, SalTrp‐Zn and vinyl chloride models was carried out, and the thermal stability mechanism of thermal stabilizer on PVC was analyzed accurately, mainly the absorption mechanism of HCl and the substitution mechanism of unstable chlorine atoms.

show abstract

Stability, mechanism and unique “zinc burning” inhibition synergistic effect of zinc dehydroacetate as thermal stabilizer for poly(vinyl chloride)

Cited by 31 publications

References 22 publications

Synthesis and Study of Zinc Orotate and Its Synergistic Effect with Commercial Stabilizers for Stabilizing Poly(Vinyl Chloride)

Synthesis and Study of Zinc Orotate and Its Synergistic Effect with Commercial Stabilizers for Stabilizing Poly(Vinyl Chloride)

Effect ofCaSt₂/ESOthermal stabilizers on the preparation, thermal stability, and thermal stability mechanism of self‐made vinylidene chloride‐methyl acrylate copolymer resin film

A “one‐pot” method for synthesizing zinc tryptophan and its derivatives as highly efficient PVC thermal stabilizer with excellent mechanical properties

Contact Info

Product

Resources

About

Stability, mechanism and unique “zinc burning” inhibition synergistic effect of zinc dehydroacetate as thermal stabilizer for poly(vinyl chloride)

Cited by 31 publications

References 22 publications

Synthesis and Study of Zinc Orotate and Its Synergistic Effect with Commercial Stabilizers for Stabilizing Poly(Vinyl Chloride)

Synthesis and Study of Zinc Orotate and Its Synergistic Effect with Commercial Stabilizers for Stabilizing Poly(Vinyl Chloride)

Effect ofCaSt2/ESOthermal stabilizers on the preparation, thermal stability, and thermal stability mechanism of self‐made vinylidene chloride‐methyl acrylate copolymer resin film

A “one‐pot” method for synthesizing zinc tryptophan and its derivatives as highly efficient PVC thermal stabilizer with excellent mechanical properties

Contact Info

Product

Resources

About

Effect ofCaSt₂/ESOthermal stabilizers on the preparation, thermal stability, and thermal stability mechanism of self‐made vinylidene chloride‐methyl acrylate copolymer resin film