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Popular Science! How Much Do You Know About Dimethyl Silicone Oil?
2025-07-11
Popular Science! Dimethyl silicone oil: What you need to know?
- Dimethyl silicone oil: High performance Silicone Core properties of polymers
Dimethyl silicone oil, due to its wide viscosity range (0.65~1000000 mm/s), low temperature viscosity coefficient, high expansion coefficient, high flash point, high and low temperature resistance, weather resistance, chemical corrosion resistance, radiation resistance, low surface tension, high insulation, and shear resistance, determines its wide range of uses. 2 II. In-depth analysis of the five core uses of dimethyl silicone oil
1. Used as a textile auxiliary agent
Methyl silicone oil is widely used as an oil agent for fiber raw materials and raw cotton, spinning oil agent, and sewing thread smoothing agent. The oil agent for raw materials and raw cotton is low-viscosity methyl silicone oil. The sewing thread smoothing agent is medium-to-high viscosity methyl silicone oil. Utilizing the thermal stability and low viscosity-temperature coefficient of dimethyl silicone oil, it can be used to produce spinning oil agents, mainly used in the spinning process of nylon and polyester to prevent breakage and loosening.
2. Making defoamers:
Due to the low surface tension of dimethyl silicone oil, its insolubility in water, animal and vegetable oils, and high-boiling-point mineral oils, its good chemical stability and non-toxicity, it is used as a raw material for defoamers. Dimethyl silicone oil is mixed with fumed silica to make silicone paste, and then the silicone paste is emulsified to form a water-based emulsion defoamer.
Defoamers have been widely used in petroleum, chemical, medical, pharmaceutical, food processing, textile, printing and dyeing, and papermaking industries. Adding only 10-100 PPM has a good defoaming effect. Silicone 3. Making release agents: Silicone Its non-stickiness to rubber, plastics, and metals, and its easy film-forming characteristics, are also used in the manufacture of release agents for various rubber and plastic product molding processes.
4. As a lubricant:
Used as a lubricant for rubber and plastic bearings and gears. Lubricants made from dimethyl silicone oil are usually used in the form of grease.
Other aspects:
Utilizing its high flash point, odorless, colorless, transparent, and non-toxic properties to the human body, it is used as a heat carrier in oil baths or thermostats in the steel, glass, and ceramic industries and scientific research. Due to its good shear resistance, it can be used as hydraulic oil, especially aviation hydraulic oil. Treating artificial silk spinning heads with it can eliminate static electricity and improve spinning quality.
- 其它方面：
利用其闪点高、无嗅、无色、透明且对人体无毒等特性，在钢铁、玻璃、陶瓷等工业和科研中，作为油浴或恒温器中的热载体。利用其抗切变性能好，可做液压油尤其是航空液压油。用其处理人造丝纺丝头，可消除静电，提高抽丝质量。
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