Fundamentals and Performance Evaluation of Foaming Molding Technology Using Physical Foaming Agents

basic information

*New members who apply for the first time by September 6 will receive an early bird discount price of 39,900 yen.* **Lecture Summary** This presentation will provide an easy-to-understand introduction to plastic foams containing fine bubbles using carbon dioxide and nitrogen as physical blowing agents. It will cover the principles of foaming, basic theories, various foaming processes and control methods based on the viscoelastic properties of the materials, as well as foaming molding systems using injection molding machines. The focus will be on the fundamentals of foaming molding technology for manufacturing and methods for evaluating their characteristics.

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Applications/Examples of results

1. Foam Generation Principles 1) Qualitative explanation of the foam generation principle of physical foaming 2) Fundamental theory of uniform nucleation 2. Required Properties of Foaming Materials 1) Viscoelastic properties of materials (time-temperature dependence of elasticity) 2) Solubility characteristics of materials 3. Foaming Control Methods and Molding Processes Based on Viscoelastic Properties 1) Batch foaming molding systems 2) Continuous foaming molding systems (extrusion molding, injection molding, blow molding: molds for foaming) 3) Factors affecting foaming and foaming control 4. Methods for Controlling Bubble Diameter and Number 1) Time-temperature conversion rules related to bubble diameter and number 2) Control methods for foams with desired bubble diameters 5. Various Properties of Foams 1) Methods for improving the strength of foams 2) Thermal properties and others [Q&A, Business Card Exchange]