There is a wide demand for PVC products with microbiocidal property. For this purpose, additional antimicrobial agents have to be added. In this work, we synthesized pentaerythritol p-hydroxybenzoate ester-based zinc metal alkoxides (PHE-Zn) additive as highly efficient antibacterial agent, thermal stabilizer, plasticizer and lubricant for PVC. PHE-Zn was characterized by Fourier-transform infrared spectrometer (FT-IR), X-ray photoelectron spectroscopy (XPS), and elemental analysis. The results confirm the formation of R-O-Zn bonds and the molecular structure of PHE-Zn. The property enhancement of PVC by PHE-Zn were investigated by conductivity, oven aging, and torque rheological tests. PHE-Zn not only contributes to excellent initial whiteness and significant long-term thermal stability (without color change up to 90 min), but also improves plasticization and lubrication of PVC. In addition, using E. coli (E. coli) and Staphylococcus aureus (S. aureus) as typical microorganisms, the antibacterial properties of PHE-Zn stabilized PVC were tested. PVC with 4 phr PHE-Zn displayed high killing rates against E. coli and S. aureus (97.92% and 91.84%, respectively). Further experiments showed that PHE-Zn was a contact-active antibacterial agent. Moreover, the mechanisms for the enhanced thermal stability and biocidal property of PHE-Zn on PVC was explored.

具有杀微生物特性的PVC产品有广泛的需求。为此，必须添加其他的抗菌剂。在这项工作中，我们合成了季戊四醇对羟基苯甲酸酯基的锌金属醇盐（PHE-Zn）添加剂，作为PVC的高效抗菌剂，热稳定剂，增塑剂和润滑剂。通过傅里叶变换红外光谱仪（FT-IR），X射线光电子能谱（XPS）和元素分析来表征PHE-Zn。结果证实了RO-Zn键的形成和PHE-Zn的分子结构。通过电导率，烘箱老化和扭矩流变测试研究了PHE-Zn对PVC的增强性能。PHE-Zn不仅具有出色的初始白度和显着的长期热稳定性（在90分钟内没有发生颜色变化），而且还改善了PVC的增塑和润滑。另外，使用以大肠杆菌（E. coli）和金黄色葡萄球菌（S. aureus）为典型微生物，对PHE-Zn稳定PVC的抗菌性能进行了测试。具有4 phr PHE-Zn的PVC对大肠杆菌和金黄色葡萄球菌的杀灭率很高（分别为97.92％和91.84％）。进一步的实验表明，PHE-Zn是一种接触活性抗菌剂。此外，还研究了增强PHE-Zn在PVC上的热稳定性和杀菌性能的机理。