The plastic processing industry is rapidly advancing towards high-speed extrusion, automated injection molding, and continuous granulation. The production capacity of common plastics such as PP, PE, ABS, PC, nylon, PBT, etc. is continuously expanding. In the processes of modified granulation, injection molding, and blown film extrusion, problems such as insufficient melt flow, uneven dispersion of fillers, excessive equipment torque, and numerous surface defects have long hindered the production efficiency and product yield of enterprises. Modified organic silicone oil, with its unique lubricating properties, is widely used as an internal and external lubricant additive in various plastic systems, becoming an indispensable functional raw material for the upgrading of rubber and plastic industries.
Inorganic powder filling modification is the mainstream solution for reducing plastic production costs and improving product rigidity. Calcium carbonate, talc powder, glass fiber, carbon black, mica, etc. tend to agglomerate and form lumps in the resin matrix, directly causing particle defects inside the plastic and significant fluctuations in the mechanical properties of the products. By adding compatible modified silicone oil at the twin-screw granulation stage to the system, the silicone oil molecules can encapsulate the inorganic filler particles, reduce the surface energy of the powder, break the agglomeration structure, and achieve uniform dispersion of the fillers in the resin. After the dispersion effect is improved, the impact strength and tensile strength of the modified plastic become more stable, and the appearance defects such as black spots and fish eyes caused by filler agglomeration are reduced. At the same time, the silicone oil plays an internal lubrication role, weakening the friction between resin molecular chains, effectively reducing the screw torque of the extruder, reducing equipment energy consumption, alleviating screw wear, and extending the service life of the extrusion equipment, helping factories reduce equipment maintenance costs.
In the external lubrication aspect, the silicone oil can migrate to the melt and the contact surfaces of the mold and the die, reducing the friction resistance between the melt and the metal equipment. In the injection molding process, it reduces defects such as mold sticking, scratching, and edge tear of the products, prolongs the mold cleaning cycle; in the blown film extrusion process, it improves the uniformity of melt flow, stabilizes the thickness tolerance of the film, and reduces surface problems such as crystal points, bubbles, and longitudinal stripes. Unlike traditional waxes and fatty acid salts lubricants, modified silicone oil has better heat resistance, does not volatilize or decompose at temperatures above 200°C, and does not form carbon deposits at the mold mouth, suitable for processing conditions of high-temperature engineering plastics.
The industry's production focuses on the risk of additive precipitation. Ordinary silicone oil has poor compatibility with plastics and is prone to migrate to the surface of the products, causing frosting and affecting subsequent painting, silk-screening, and bonding processes. The IOTA series of plastic-specific modified silicone oil, through molecular structure optimization, precisely regulates compatibility and achieves controlled migration, while minimizing surface precipitation risks while exerting lubricating effects. For different resin systems, custom branched structure silicone oils can be produced to adapt to general plastics, glass fiber reinforced engineering plastics, and flame-retardant modified plastics and other multi-formulations.
As the downstream industries such as home appliances, automobiles, packaging, and electronics continue to raise the quality requirements for plastics, traditional lubricants of low-end quality are gradually being replaced by environmentally friendly modified silicone oils. The domestic market for modified plastics will continue to grow in 2026, and the demand for high-performance processing additives will also increase simultaneously. Industry analysts believe that modified silicone oil with multiple functions such as lubrication, dispersion, and heat resistance will continue to empower rubber and plastic enterprises to achieve high-speed production, improved product yield, and reduced energy consumption, supporting the plastic industry to continuously develop towards high-end and green directions.