DINP and DPHP are both plasticizers used to improve the flexibility and processing performance of PVC and other polymer materials. Their main difference lies in their performance profile and the application requirements they are designed to meet.
DINP is suitable for standard flexible PVC products, while DPHP has a higher molecular weight, lower volatility, and improved heat and aging resistance, making it better suited to demanding applications such as wire and cable and outdoor PVC.
DINP is commonly used in ordinary flexible PVC products where standard flexibility and processing performance are required. It is a practical plasticizer option for applications that do not require especially high resistance to heat, aging, or volatilization.
DPHP has a higher molecular weight than DINP. This contributes to lower volatility and better resistance to heat and aging. These characteristics make DPHP more appropriate for PVC products exposed to more demanding service conditions.
The choice depends on the required performance of the finished PVC product. DINP is appropriate for general flexible PVC uses, whereas DPHP is the preferred option when lower volatility, stronger heat resistance, and improved aging performance are important. Henan GO Biotech Co., Ltd. supplies DINP and DPHP plasticizers for B2B customers and supports application-based product selection for PVC processing requirements.
