PVC processing products multi-phase system often appear due to poor compatibility, resulting in PVC products mechanical properties are not ideal, processing instability, resulting in increased costs.
At the same time, stearic acid, titanate coupling agent, aluminate coupling agent, etc. are used to modify the inorganic filler to change the lipophilicity of the inorganic phase, but it does not fundamentally change the balance and compatibility of the multi-phase PVC system. Long-term industrial application shows that defects will appear:
① High viscosity of processing melt;
Poor dispersion of inorganic fillers and inorganic pigments in organic polymers;
The lipophilic chain of the traditional coupling agent has poor compatibility with the phases of the PVC system, which greatly reduces the impact toughness and strength of the composite material.
The use of special additives for PVC plastics can efficiently disperse inorganic powders and pigments, and effectively reduce the surface tension of phases in PVC multiphase complex systems. Eliminate micro-phase micro-cracks and phase stress caused by poor phase compatibility in PVC multiphase complex systems, and greatly improve the mechanical properties of PVC composites. Efficient fusion of PVC multiphase system improves PVC processability and surface gloss of PVC products; greatly increase the amount of inorganic powder in PVC composite materials by 50% ~ 100, while ensuring good product quality, greatly reducing the cost of enterprises.
To sum up, the use of special additives for PVC plastics in the formulation of PVC products is extremely flexible, which can greatly improve the impact toughness and strength of PVC products KJ-0921 adding special additives for PVC plastics without changing the original formulation. It is also possible to increase the inorganic filler by 50% ~ 100 on the basis of the original formula, reduce the enterprise cost by 3% ~ 8% on the basis of ensuring the product quality, and users can choose according to their needs.