Preparation and properties of two types of tung oil‐based liquid auxiliary heat stabilizer for polyvinyl chloride processing

In this work, two types of tung oil‐based auxiliary heat stabilizers (Ph‐T and Ph‐TO) were prepared for application in PVC processing. Combined with traditional heat stabilizers (calcium stearate and zinc stearate), Ph‐T or Ph‐TO can greatly alleviate “zinc burning” during the PVC processing which can significantly extend the processing time of PVC, so that improve the fault tolerance rate during PVC processing. Notably, the preparation process of Ph‐T and Ph‐TO is simple and does not require any heating, leading to reduced production costs and simplified manufacturing processes. Additionally, Ph‐T or Ph‐TO can enhance the plasticity of PVC, reducing the need for plasticizers and achieving multiple benefits with a single additive, which might be applicable in the production of blood bags or cable sheathing. Highlights Two types novel tung oil‐based liquid auxiliary heat stabilizer for PVC processing were prepared. The preparation process is simple and does not require any heating. These auxiliary heat stabilizers can greatly alleviate “zinc burning” during the PVC processing and which can significantly extend the processing time of PVC, improve the fault tolerance rate during PVC processing. These auxiliary heat stabilizers can improve the overall plasticity of the PVC material and achieving the multi‐effect.