In daily contact, many customers ask a question: Is methyl silicone oil used in plastic modification? What role can it play? Today, the editor has sorted out and talked about this relevance with you.

So what is plastic modification? ‌Plastic modification‌ refers to the process of improving the original properties of plastics or improving some of their characteristics through physical, chemical or mechanical methods. Modified plastics are processed by filling, blending, reinforcing and other methods on the basis of general plastics and engineering plastics to improve the flame retardancy, strength, impact resistance and other properties. ‌

Methyl silicone oil is indeed widely used in plastic modification‌. Methyl silicone oil, also known as polymethylsiloxane, is a colorless and transparent liquid with excellent high and low temperature resistance, chemical stability and lubricity. In plastic modification, methyl silicone oil mainly plays the following roles:

Improving the high temperature resistance of plastic products‌: During the plastic processing process, adding an appropriate amount of methyl silicone oil can increase the thermal stability of the plastic, making it less likely to deform, soften or decompose in a high temperature environment, thereby extending the service life of the plastic product. Especially in places that need to withstand high temperatures, such as electronic product housings and automotive parts, the addition of methyl silicone oil can effectively improve the heat resistance of plastic products and ensure their normal operation‌.

Improve the surface smoothness and transparency of plastic products: Methyl silicone oil has excellent lubricating properties. Adding an appropriate amount of methyl silicone oil can help plastic particles to be smoother during the injection molding process, reduce bubbles, defects and textures on the surface of plastic products, improve the surface smoothness and transparency of products, and make them more beautiful and textured. Therefore, in some products with high requirements for appearance, such as daily necessities and cosmetics packaging, the application of methyl silicone oil can make plastic products more attractive.

Increase the softness and toughness of plastic products: During the plastic processing process, methyl silicone oil can be mixed evenly with plastic particles to increase the fluidity of plastic molecular chains, making plastic products softer, tougher, and less likely to crack or break. This modification effect is particularly prominent in some products that require elasticity and impact resistance, such as toys and sports equipment. The addition of methyl silicone oil can improve the durability and safety of plastic products.

Improve the demoulding performance of plastics: Methyl silicone oil can also be used as a demoulding agent to improve the demoulding properties of plastics, which is conducive to improving production efficiency and reducing the wear of tools, molds and equipment. In addition, methyl silicone oil also has excellent high and low temperature resistance, light transmittance, electrical properties, hydrophobicity, moisture resistance and chemical stability, and is suitable for various complex processing occasions.

Matters needing attention when using methyl silicone oil include:

Control coating thickness: The coating thickness should be moderate. Too thick a coating will affect the transparency and texture of the plastic, and may crack and fall off.

Ensure coating adhesion and durability: The plastic surface should be cleaned and treated before application to ensure the adhesion and durability of the coating.

Avoid contact with eyes and mouth: Methyl silicone oil is non-toxic, odorless and non-irritating, but it should be avoided from contact with eyes and mouth during use to prevent accidental ingestion.

Choose a suitable concentration: Choosing a suitable concentration of methyl silicone oil can improve the effect, but plastic aging is an inevitable natural phenomenon, and attention should be paid to maintenance and replacement.