Silicon masterbatch, also known as silicone masterbatch, is a specialized additive used in the plastics industry to introduce silicone-based properties to plastic materials. It is designed to enhance various characteristics such as lubricity, heat resistance, release properties, and surface smoothness.
| Appearance | Granule/Pellets |
|---|---|
| Color | Natural |
| Carrier Resin | PE |
| Active Ingredients | ≈ 50 % PDMS |
| Thermal Stabilizer | Yes |
| Melf Flow Index | 7 gr/10min. (@ 190 °C , 2.16 kg) |
| Specific Density | ≈ 0.91 gr/cm3 |
Silicon masterbatch is composed of silicone-based materials, typically in the form of silicone oil or silicone resin, dispersed in a carrier resin that is compatible with the base polymer. The carrier resin helps to evenly distribute the silicone throughout the plastic matrix.
Silicon masterbatch imparts lubricating properties to the plastic material, resulting in reduced friction between surfaces. This can improve the flow properties of the polymer during processing and reduce sticking or blocking issues. The slip provided by the silicone can also enhance the release properties of plastic products from molds and improve their surface smoothness.
Silicone-based additives in the masterbatch contribute to improved heat resistance of the plastic material. Silicones have inherent thermal stability, allowing them to withstand higher temperatures without significant degradation. This can be beneficial in applications where the plastic is exposed to elevated temperatures during processing or use.
Silicon masterbatch should be compatible with the base polymer to ensure proper dispersion and effective transfer of silicone properties. Compatibility testing is recommended to assess the performance and compatibility of the masterbatch in the specific plastic matrix.
The concentration of silicon masterbatch required depends on factors such as the desired level of silicone properties, the specific polymer type, and the intended application. Optimal concentration should be determined through testing to achieve the desired effects without compromising other properties of the plastic.
Silicon masterbatch finds applications in various industries, including automotive, packaging, electronics, and consumer goods. It can be used to improve the performance and functionality of plastic products, such as reducing friction, enhancing release properties, improving surface quality, and providing heat resistance.
When selecting a polymer processing aid masterbatch, it is important to consider factors such as the specific polymer type, processing conditions (temperature, shear rates), and end-use requirements. Different masterbatches may offer varying performance benefits, and the selection should be based on the specific needs of the application.
The information provided herein is based on our current knowledge and is intended to offer general guidance on products and their applications. It should not be construed as a guarantee of specific product properties or their suitability for a particular purpose. Due to the wide variability of conditions in product usage, which are beyond MKEY's control, users must independently assess whether MKEY products are suitable for their intended applications prior to use.
The quality of our products is warranted in accordance with our General Terms and Conditions of Sale, which are currently in effect or may be updated in the future. Technical information, test data, and advice provided by MKEY personnel are based on our best knowledge and reliable tests. However, it is assumed that recipients of such information possess the necessary expertise and technical skills to analyze test methods and conditions, as well as handle and utilize raw polymers and related compounding ingredients effectively.
