The automation and high-speed production in the rubber and plastic industry are continuously advancing. Processes such as injection molding, extrusion granulation, blow molding, and rotational molding are being increasingly popularized. Plastic products are facing a series of production challenges including insufficient melt fluidity, difficult demolding, surface scratches, frosting, fish eyes, static adsorption of dust, etc. Different types of modified silicone oil are used as internal and external lubricants, demolding agents, and wear-resistant additives, and are widely applied in processing systems of common and engineering plastics such as PP, PE, PVC, ABS, PC, and nylon, enhancing processing efficiency and product performance.
In the injection molding production process, silicone oil is sprayed onto the inner wall of the mold, forming a low surface energy isolation film after curing. After the molten plastic cools down, it can be smoothly demolded, effectively preventing defects such as product sticking to the mold, edge tearing, and surface scratches, reducing the frequency of mold grinding and cleaning, and significantly improving the effective production capacity of the production line. In the blow molding film production process, a small amount of silicone oil is added to reduce the internal friction of the resin melt and the friction of the die, improve the uniformity of the melt, reduce surface flaws such as fish eyes, crystal points, and bubbles in the film, and significantly improve the uniformity of the film thickness. In the granulation process, silicone oil acts as an efficient lubricant, promoting the uniform dispersion of inorganic fillers such as calcium carbonate, glass fiber, and carbon black in the resin, avoiding powder agglomeration and blockage, reducing the processing torque of the extruder, reducing energy consumption, and extending the service life of the screw.
The thin layer of silicone that migrates and precipitates on the surface of the finished plastic parts gives plastic products excellent smoothness, wear resistance, and water repellency. Household appliance shells, plastic storage boxes, and plastic toys are less likely to attract fingerprints and oil stains. Through formula control, special plastic silicone oil can achieve appropriate migration without damaging the printing, painting, and bonding properties of the plastic surface, avoiding common problems caused by ordinary lubricants such as coating detachment. Outdoor plastic pipes and landscape plastic products add weather-resistant modified silicone oil to enhance the resistance to ultraviolet rays and delay plastic aging and cracking.
With the continuous expansion of the market for modified plastics and functional plastic products, environmentally friendly low-extraction silicone oil gradually replaces traditional paraffin-based lubricants. The IOTA series of plastic-specific silicone oil is compatible with various rubber and plastic systems, has controllable addition amount, strong processing stability, and helps many rubber and plastic enterprises reduce defect rates and achieve quality improvement and cost reduction. Under the trend of plastic high-endization, multi-functional modified silicone oil will continue to be a core auxiliary agent in rubber and plastic processing, supporting the high-quality development of the industry.