| abstract |
The invention belongs to the field of plastic additives, and in particular relates to a calcium-zinc heat stabilizer for PVC, a preparation method and application. The present invention develops a metal-organic framework Zn-Atz with a three-dimensional structure by using metal zinc compounds and Atz as raw materials, and compounding Zn-Atz, calcium stearate and phosphite to obtain a metal-organic framework containing metal Zn‑Atz's calcium zinc heat stabilizer for PVC. The calcium-zinc heat stabilizer prepared by the invention has the characteristics of non-toxicity, no heavy metal, environmental protection and the like, and gives it better initial and long-term thermal stability and transparency. The preparation method is simple, the raw material sources are abundant and the price is low. |