Epoxidized Soya Bean Oil is a kind of bio-based plasticizer with good thermal stability and non-toxicity. It is made by adding oxirane into soybean oil to form side chains with epoxy groups. ESBO is often used as a plasticizer in many food packaging materials and medical devices due to its excellent biodegradability and low cost. Moreover, Epoxidized Soya Bean Oil can also be utilized as a stabilizer in PVC products, which improves the thermal stability and weathering resistance of the product. Moreover, ESBO can replace traditional phthalates as a plasticizer, which are considered toxic and harmful to human health.