May 18, 2024
Thixotropic agents are additives that impart thixotropy to a formulation, meaning they enable the material to become less viscous under shear stress (such as shaking or spraying) and return to a more viscous state when at rest. In PVC (polyvinyl chloride) aerosols, thixotropic agents are used to ensure that the PVC particles remain uniformly suspended and to control the flow and application properties of the aerosol.
Organoclays:
Fumed Silica:
Polyamide Waxes:
Cellulose Derivatives:
Polyurethane Rheology Modifiers:
Thixotropic agents function by forming a three-dimensional network within the PVC aerosol formulation. This network:
Preparation:
Formulation Considerations:
Performance Testing:
In conclusion, thixotropic agents are essential for ensuring the performance and stability of PVC aerosol formulations. By selecting the appropriate agent and optimizing its concentration and dispersion, manufacturers can achieve the desired thixotropic properties, enhancing the application and overall effectiveness of the product.