Influence of Polyols as a Co-Stabilizer on Stabilization Efficiency of Calcium/Zinc Stabilizers to PVC

Abstract:

In order to prepare the innocuity polyvinyl chloride (PVC) products, the calcium/zinc stearate was used as the thermal stabilizer of PVC and the polyols were used as co-stabilizer of Ca/Zn stabilizer. The influence of polyols on the stabilization efficiency of Ca/Zn stabilizer to PVC was investigated by Congo red methods. The rheological behaviors and dynamic mechanical properties of PVC were also investigated by rotational rheometer and dynamic mechanical analyzer (DMA). The results showed that different polyols have different influences on the stability, but the pentaerythritol has a good synergy effect with Ca/Zn stabilizer for PVC and pentaerythritol and dipentaerythritol have a lower melt viscosity and good product color.

• Periodical: Advanced Materials Research (Volume 549)
• Pages: 251-254
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.549.251
• Online since: July 2012
• Authors: Jun Gang Gao, Xiao Qian Liu, Jiang Bo Yang, Feng Li Zhu
• Keywords: Calcium/Zinc Stabilizer, Poly(vinyl chloride), Polyols, Rheological Behavior

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