Desiccant Masterbatches can counter problems that develop during the processing of plastics due to the presence of moisture and prevents the absorption of moisture during transportation. Moisture can be present in raw materials such as hygroscopic polymers, fillers, and pigments. Reprocess polymer can also have high moisture content.
When processing polymer with high moisture content the polymer can become porous and show voids/lower tensile in the final articles or extruded/blown sheet. In film applications, the high moisture content can lead to film bubble breakage.
Action of Desiccant Masterbatches
Desiccant masterbatch chemically binds moisture during processing and allows higher levels of reprocess polymers & fillers to be used
Desiccant Masterbatches
Desiccant Masterbatches are based on extra pure Calcium Oxide minerals. These masterbatches are used in eliminating moisture in virgin and recycled LD, LLDPE, HM, PP, etc. These are mainly used in blown film, molding & raffia.
Desiccant Masterbatches help reduce
- Fish Eyes
- Porosity
- Windows/lenses in films;
- Silver streak in molding.
Benefits of using Desiccant Masterbatches in detail
Moisture Control: It absorbs moisture during the processing and storage of plastics very effectively and also prevent issues like hydrolysis, which can further weaken the material and affect its properties thus giving the bad final product.
Enhanced Product Quality: It keeps the the physical and mechanical properties of the plastic material, such as strength, clarity, and dimensional stability.
Extended Shelf Life: Moisture can accelerate degradation and spoilage of plastic products and the use of this desiccants helps extend the shelf life by preventing moisture-related issues.
Improved Processing: In plastic manufacturing, moisture can cause processing problems like excessive bubbling or splay and it helps to mitigate these issues and helping to smoother processing and better end-product quality.
Cost Efficiency: By reducing the need for additional drying processes and minimizing defects, it further lower overall production costs and waste.
Versatility: It can be used with various types of polymers, including PET, nylon, and others, making it a versatile choice for different applications.
Enhanced Appearance: Moisture can cause imperfections like blushing or cloudiness in the final product and our this desiccant help in achieving a cleaner, more consistent appearance.
Regulatory Compliance: In some industries have strict regulations regarding moisture control in plastic products and using the desiccant masterbatch can help in meeting these regulatory requirements.
What are some of the key features of Desiccant Masterbatch? Let us discuss them in detail point wise:
Compatibility: Designed to be compatible with a wide range of polymers, including PET, PA (nylon), PP, and others, without affecting their mechanical properties or processing characteristics.
Concentration Control: Typically available in various concentrations, allowing for precise adjustment based on the specific moisture control needs of different plastic applications.
Easy Integration: Can be easily blended with the base polymer during the extrusion or injection molding process, without requiring significant modifications to existing equipment.
Low Migration: Generally designed to minimize migration or leaching into the final product, maintaining the integrity and safety of the plastic.
Regulatory Compliance: Often formulated to meet industry-specific regulations and standards, ensuring that the final products are compliant with safety and performance requirements.
Tailored Performance: Can be customized to meet specific requirements, such as different absorption capacities or physical forms, to match the needs of various applications and processing conditions.
We hope all the answers to your questions related to desiccant masterbatch and it’s uses, features are answered in this article.
