Recommendation for Moisture Measurement for Stability in Molding and Converting

Understanding the "moisture content" of materials and products is important for stabilizing plastic molding and reducing costs. A brief explanation of "moisture content" and "moisture meters."

01. Reduction of Molding Defects and Performance Verification of Dryers A moisture meter is a device that measures the trace moisture contained in plastic products and their materials. By using a moisture meter, the drying level of materials can be stabilized, which not only prevents molding defects but also allows for performance verification of resin drying equipment. In other words, it is also possible to eliminate waste generated by high operating cost resin drying equipment. 02. Moisture Meters for High-Quality Molding Measuring moisture content is crucial for molding high-quality products. Among these, the molding of hygroscopic resins such as polyamide (PA), polycarbonate (PC), polyethylene terephthalate (PET), and polybutylene terephthalate (PBT), as well as additives like masterbatches, requires material drying. In other words, "moisture management" is very important. 03. The Necessity of Moisture Meters Managing resin with a moisture meter greatly contributes to product quality. The necessity of moisture meters significantly affects the drying process of materials and molding, and it can also impact the strength and appearance of molded products. Therefore, it is recommended to manage moisture levels at several tens of ppm using dehumidifying material dryers. To prevent molding defects and ensure high-quality products, moisture management has become indispensable.

ISO-15512 E Method Moisture Meter HP

basic information

=Comparison of ISO-15512 E Method and Karl Fischer Method= ■ISO-15512 E Method ◎Advantages - High measurement accuracy (equivalent to Karl Fischer) - Capable of measuring trace moisture in the ppm range - Requires a large sample amount, ensuring high precision and reproducibility - The large test tube allows for measurement of molded products - Low cost, using only reagents and a 100V power supply - Reagent is calcium hydroxide, making management relatively easy - Compact and portable with no additional equipment required - Easy operation with a touch panel × Disadvantages - Low recognition ■Karl Fischer Method ◎Advantages - High measurement accuracy - Capable of measuring trace moisture in the ppm range - High recognition × Disadvantages - Requires large ancillary equipment such as nitrogen gas - Measurement locations are limited - Use of special reagents restricts the number of qualified testers - Significant differences in reproducibility depending on the operator's skill level - Some reagents contain hazardous substances, making management difficult

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Applications/Examples of results

What is a moisture meter for polymers? It is a device used to measure trace moisture contained in plastic products and their materials. By using a moisture meter, the drying level of materials can be stabilized, which not only prevents molding defects but also allows for performance verification of resin drying equipment. In other words, it is also possible to eliminate waste generated by high operating cost resin drying equipment.