PVC heat-resistant modifiers in powder form with SMA functional resin manufactured by Yangchen Tech are specialized additives used to improve the heat resistance and performance of PVC formulations. These modifiers are typically in powder form and contain SMA functional resin, which is a copolymer of styrene and maleic anhydride.   Here's an overview of how PVC heat-resistant modifiers with SMA functional resin work and their potential applications:   1.Heat Resistance Enhancement: The SMA functional resin component in these modifiers contributes to enhancing the heat resistance of PVC formulations. Maleic anhydride groups in the SMA resin can react with PVC chains, leading to improved thermal stability and resistance to heat deformation at elevated temperatures.   2.Compatibility with PVC: PVC heat-resistant modifiers with SMA functional resin are designed to be compatible with PVC matrices. The presence of maleic anhydride groups in SMA resin promotes good adhesion and dispersion within the PVC matrix, ensuring uniform distribution of the modifier throughout the polymer matrix.   3.Impact Modification: In addition to heat resistance enhancement, SMA-functionalized PVC modifiers may also provide impact modification properties to the PVC formulation. The incorporation of SMA resin can improve the toughness and impact strength of PVC products, making them more resistant to mechanical stresses and impact damage.   4.Processability Enhancement: These modifiers may also improve the processability of PVC formulations during manufacturing processes such as extrusion, injection molding, and calendaring. The presence of SMA functional resin can act as a processing aid, reducing melt viscosity, enhancing melt flow, and facilitating smoother processing of PVC compounds.     Applications PVC heat-resistant modifiers with SMA functional resin are used in a variety of applications where enhanced heat resistance, impact resistance, and processability are required. Common applications include PVC pipes and fittings, wire and cable insulation, automotive components, building materials, and consumer goods.   PVC heat-resistant modifiers in powder form with SMA functional resin offer a versatile solution for improving the heat resistance and performance of PVC formulations across a range of applications. Their compatibility with PVC matrices, heat resistance enhancement, impact modification properties, and processability improvement make them valuable additives in the plastics industry.   Basic Physical Properties      N-phenylmaleimide terpolymer ( NSA copolymer) Test Item Test Standard Test Data Molecular weight and distribution GPC Mw=220-420K，Pd=2.4-3.6 Glass transition temperature/℃ DSC NSA1# NSA2# NSA3# 127.1℃ 142.6℃ 161.2℃ Initial decomposition temperature/℃ TGA 390-398℃ Density ASTM-D792 1.15-1.25g/cm3 Apparent —— Tiny yellow powders or tiny particles     Tab. 2 NSA Heat Resistant Agent Modification Data     Component composites Vicat softening temperature/℃ Glass transition temperature/℃ NSA/PVC=0:100 84.3 95.4 NSA/PVC=10:90 95.2 103.9 NSA/PVC=20:80 101.3 110.5 NSA/PVC=30:70 107.6 118.8   If you have any questions or need us to provide technical service support,pls feel free to contact: business@xysjgm.com