An efficient cold-resistant strategy: Synthesis and application of green cold-resistant bio-based plasticizer for poly(vinyl chloride)

Nowadays, the most commonly used cold-resistant plasticizer, bis(2-ethylhexyl)adipate (DOA), not only has the poor migration resistance so that it can only be used as auxiliary plasticizer, but also causes huge pollution to the environment, especially water. Here, using renewable and green oleic acid as raw material, we had synthesized a series of oleate plasticizers. By means of capability tests, we detected that the T r (initial degradation temperature) of PVC films plasticized with oleate plasticizers was 40 degrees C higher than that of DOA/PVC and 20 degrees C higher than that of DOTP/PVC. More importantly, in addition to illustrious migration resistance, they could maintain remarkable flexibility in cold environments as well. The low-temperature efficiency value of these oleate plasticizers exceeded 70 degrees C, which was much higher than DOTP and DOA. These results demonstrated that they possessed the potential to replace toxic DOP and poorly stable DOA, which provided an effective and green approach to solve the harm of plastic products to human health and the threat to the environment. In addition, these plasticizers broadened the application of PVC in cold environments, which was a boon for the application of PVC industry in the cold-resistant field, and contributed to sustainability of the hackneyed and oft-maligned PVC industry.

Automated summary

Plasticizers synthesized from renewable oleic acid outperformed traditional DOA plasticizers in terms of performance, exhibiting excellent migration resistance and flexibility in cold environments. These plasticizers have the potential to replace toxic DOP and poorly stable DOA, providing an effective and green solution to the harm of plastic products to human health and the environment. Additionally, they expand the application of PVC in cold environments, contributing to the sustainability of the often criticized PVC industry.