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1. Key of silicone masterbatch
The dispersibility of silicone masterbatch in plastic processing is one of the key factors for its successful application. According to the search results, silicone masterbatch has functions such as improving processing performance, reducing friction coefficient, increasing melting rate and deformability, which help to improve its dispersibility in plastics. Specifically, silicone mb can be used as a flow promoter, anti caking agent, synergistic flame retardant, lubricant, hydrophobic agent, and release agent to improve the impact resistance, lubricity, dispersibility, flame retardancy, and droplet resistance of plastics.
2. Processing of silicone masterbatch
The dispersibility of silicone masterbatch can be optimized through the following techniques in different plastic processing processes:
Using carrier: Silicone masterbatch is usually carried on EVA or other polymers as carriers, which helps to improve its dispersibility in plastic matrices.
Control the addition amount: Adding an appropriate amount of silicone mb can significantly improve the processing performance of composite materials. For example, in high-density polyethylene composite materials filled with 30% talc powder, adding 0.5% silicone masterbatch can balance a 2.5% decrease in torque and an 11.9% increase in melt mass flow rate.
Choose the appropriate type of silicone masterbatch: Based on the type of plastic and processing requirements, select silicone additive with appropriate molecular weight and physical morphology, such as the Grade DX052P with white particle morphology.
Optimize mixing process: During the mixing process, ensure that the silicone masterbatch is fully mixed with other components to achieve uniform dispersion.
In addition, the addition of silicone mb may lead to a slight decrease in the tensile and bending strength of the composite material, but at the same time, it can improve the impact strength of the material. Therefore, in practical applications, it is necessary to adjust the amount and type of silicone mb added according to specific product requirements and performance balance.
The dispersibility of silicone masterbatch in plastic processing can be achieved by selecting appropriate carriers, controlling the amount of additives, choosing appropriate types of silicone mb, and optimizing the mixing process. These methods help improve the dispersibility of silicone masterbatch in plastics, thereby enhancing the overall performance of plastic materials.
3. Application of silicone masterbatch
Suitable for thermoplastic materials such as PP, PE, EVA, ABS, PA, PC, etc. Widely used in modified plastics, halogen-free flame-retardant cable materials, high-end shoe soles, plastic insulation sealing strips, large injection molded parts, thin-walled and complex plastic parts, plastic pipes and other fields.
Usage: Mix silicone plastic additives with thermoplastic resin in proportion, and then shape and process them. In plastic processing, it can be widely used as a flow promoter, anti caking agent, synergistic flame retardant, lubricant, hydrophobic agent, release agent, etc., to improve impact resistance, lubricity, dispersibility, flame retardancy, and droplet resistance.
For example, it is used as a flame retardant synergist in polyethylene aluminum hydroxide/magnesium halogen-free flame retardant system, an impact modifier and lubricant for general-purpose polystyrene.
The production of polyolefin cables not only has good flame retardant effect, but also improves the glossiness, feel, insulation and aging resistance of the cable surface.
Used for high-end shoe materials, it can make plastic shoe soles have ultra-high wear resistance and scratch resistance.
