Ethyl silicone oil has opened up new tracks in the fields of cosmetics and personal care due to its excellent lubricity, breathability, and chemical stability. As a lubricant, the methyl group in its molecular chain forms a hydrophobic layer, which can significantly reduce the surface tension of the formula system (about 20 dyne/cm), making liquid foundation, lipstick and other products easier to apply without caking. For example, after adding 5% ethyl silicone oil to an international brand liquid foundation, the ductility is increased by 40%, and the makeup holding time is extended to 12 hours.


In the field of UV protection, ethyl silicone oil wraps around physical sunscreens such as titanium dioxide to form a uniform light reflective film, increasing SPF value while reducing "whitening" phenomenon. In a certain sunscreen formula, ethyl silicone oil is combined with chemical sunscreen agents to increase UVB protection efficiency by 25%, and the skin feels refreshing and non greasy. In addition, its low allergenicity (tested as level 0 for skin irritation) and biocompatibility make it an ideal material for lubrication and sealing of medical devices. For example, the surface coating of endoscopic catheters can reduce the friction coefficient to 0.05, reducing patient discomfort.


The textile industry is another major application scenario for ethyl silicone oil. As a soft finishing agent, it can penetrate into the fibers to form an elastic film, making the fabric feel smooth and increasing wear resistance by 30%. A certain sports brand uses polyester fibers treated with ethyl silicone oil, which maintains 90% of its initial softness after 50 washes, far exceeding traditional softeners. At the same time, its waterproof performance (contact angle>120 °) enables products such as raincoats and tents to have self-cleaning characteristics, taking away surface stains when water droplets roll off.

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