Synthesis of zinc Schiff base complex and its application as highly efficient thermal stabilizer for flexible poly (vinyl chloride)

Cui, Zhixuan; Jiang, Pingping; Feng, Shan; Lu, Minjia; Chen, Shijun; Sheng, Xunxun

doi:10.1016/j.polymdegradstab.2023.110317

Cited by 6 publications

(2 citation statements)

References 35 publications

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“…The performance of heat stabilizers in terms of thermal stability can be classified into three categories: initial thermal stability performance, long-term thermal stability performance, and residual thermal stability performance. 21,22 Initial thermal stability performance, also referred to as initial color change inhibition performance or color retention stability performance, pertains to the capacity of PVC to maintain its original color in a heated environment. 23 On the other hand, long-term thermal stability refers to the ability of PVC to resist material discoloration during processing without burning.…”

Section: Resultsmentioning

confidence: 99%

Section: Thermal Stability Evaluated By the Congo Red Test And Therma...mentioning

confidence: 99%

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Establishment of an efficient and accurate thermal stability evaluation method based on machine vision and its application in PVC thermal degradation

Wang,

Fan

et al. 2023

New J. Chem.

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Section: Resultsmentioning

confidence: 99%

Section: Thermal Stability Evaluated By the Congo Red Test And Therma...mentioning

confidence: 99%

Establishment of an efficient and accurate thermal stability evaluation method based on machine vision and its application in PVC thermal degradation

Wang,

Fan

et al. 2023

New J. Chem.

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Synergistic effect of Ca/Zn main stabilizer and maltitol auxiliary stabilizer on the thermal stability, mechanical properties, and transparency of poly(vinyl chloride)

Wang,

Zhang,

Dong

et al. 2024

J of Applied Polymer Sci

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Maltitol, a natural compound, offers a potentially eco‐friendly alternative to conventional auxiliary thermal stabilizers. Its auxiliary stabilization effect was studied by discoloration tests, Congo red tests, thermogravimetric analysis, and UV–visible spectroscopy. Additionally, x‐ray photoelectron spectroscopy and discoloration tests were used to study the stabilizing mechanisms of maltitol. Compared to dipentaerythritol, commonly used in the PVC industry, maltitol as an auxiliary stabilizer exhibits better improvement in thermal stability. This improvement is related to its melting point, ability to complex with zinc chloride, and content of hydroxyl groups. Furthermore, the addition of maltitol in PVC not only maintains good transparency of PVC basically unchanged but also improves the mechanical properties. Maltitol, as a natural, eco‐friendly, and efficient auxiliary thermal stabilizer, exhibits a promising application prospect in PVC materials.

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Enhancing mechanical properties of polyvinyl chloride: Novel organic‐modified cinnamate‐intercalated calcium aluminum hydrotalcite as a high‐efficiency thermal stabilizer

Mei,

Jiang,

Zhang

et al. 2024

Vinyl Additive Technology

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To make the hydrotalcite uniformly dispersed in polyvinyl chloride (PVC) and enhance its thermal stability, cinnamate‐intercalated calcium aluminum hydrotalcite (CaAl‐cinnamate‐LDHs) underwent organic modification with cetyltrimethylammonium bromide/sodium dodecyl sulfate/polyethylene glycol (CTAB/SDS/PEG). The structures of modified hydrotalcite were characterized using x‐ray diffractometer, scanning electron microscope, particle size analysis, and water contact angle test. The thermal stability was assessed through thermal aging oven experiment, Congo Red experiment, and thermogravimetric experiment, revealing their exceptional performance. Simultaneously, the synergistic effect of PEG‐LDHs with auxiliary thermal stabilizers was examined, with epoxy soybean oil proving to be the most effective, which made the PVC sample incompletely black within 120 min. Mechanical properties and dynamic thermomechanical analysis indicated that the overall mechanical characteristics of the PVC samples with modified hydrotalcite were significantly superior to the unmodified CaAl‐cinnamate‐LDHs. Additionally, the optical performance test demonstrated excellent transparency in the PEG‐LDHs/PVC sample. Through analyzing the thermal stability mechanism, it was indicated that hydrotalcite effectively absorbed HCl. Furthermore, the combination of PEG‐LDHs and ESO replaced unstable Cl atoms and reacted with conjugated double bonds, thereby reducing the aging and discoloration of PVC.Highlights The modified hydrotalcite preparation process was simple and easy to operate. The CTAB/SDS/PEG‐LDHs/PVC samples exhibited excellent thermal stability. Mechanical properties of the PVC samples with modified hydrotalcite were significantly superior to the unmodified CaAl‐cinnamate‐LDHs.

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Synthesis of zinc Schiff base complex and its application as highly efficient thermal stabilizer for flexible poly (vinyl chloride)

Cited by 6 publications

References 35 publications

Establishment of an efficient and accurate thermal stability evaluation method based on machine vision and its application in PVC thermal degradation

Establishment of an efficient and accurate thermal stability evaluation method based on machine vision and its application in PVC thermal degradation

Synergistic effect of Ca/Zn main stabilizer and maltitol auxiliary stabilizer on the thermal stability, mechanical properties, and transparency of poly(vinyl chloride)

Enhancing mechanical properties of polyvinyl chloride: Novel organic‐modified cinnamate‐intercalated calcium aluminum hydrotalcite as a high‐efficiency thermal stabilizer

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