Study on preparation and performance of zinc cyanurate thermal stabilizer for PVC

Journal of Hebei University of Science and Technology

Huanzhang CHEN¹  Hua LI¹  Hong LI¹ 

[1] School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, China;

关键词: fine chemical engineering;    PVC;    heat stabilizer;    zinc cyanurate;    preparation;    thermal stability;    zinc stearate;   

DOI  :  10.7535/hbkd.2016yx01006

来源: DOAJ

【 摘 要 】

The heat stabilizer Zinc cyanurate is prepared with zinc oxide and cyanuric acid as raw materials under the condition of weak acid. The product is characterized by FTIR and X-ray diffraction. Thermogravimetric analysis shows that zinc cyanurate as heat stabilizer can passivate unstable structures in PVC chain, absorb hydrogen chloride gas, and inhibit self catalytic of PVC, which effectively slow the thermal degradation of PVC. The thermal stability performance of zinc cyanurate as the thermal stabilizer of PVC is investigated by static Congo red test, dryer thermal ageing test and dynamic rheological test. It is found that when the mass of heat stabilizer is 0.3% of PVC, the thermal stability of zinc cyanurate is better compared to that of zinc stearate, and the thermal stability time of PVC with zinc cyanurate is 18 min, nearly two times that of PVC with zinc stearate; the thermal stability of zinc cyanurate for PVC is superior to that of traditional zinc stearate, and zine cyanurate can prolong the zinc burning phenomnon; zinc cyanurate and PVC have good compatibility and lubricity.

【 授权许可】

Unknown