AndTech to Hold Zoom Seminar on June 25th: "Elucidation of Adhesion Mechanism and Evaluation Technology ~ For Adhesive Design Towards Medical Applications~"

AndTech Co., Ltd. (Head office: Kawasaki City, Kanagawa Prefecture; President: Masao Toyama; hereinafter "AndTech") will provide an explanation on "Adhesion Mechanism Elucidation and Design" as part of its R&D development support. You can learn about the basics of adhesion, evaluation tests, and design! The strength of adhesion is expressed by × . This course will explain the expression of adhesion, how to utilize Pulse NMR and AFM force curves, and apply it to actual adhesive design, taking into account the adhesive properties required for medical applications. Live Streaming / Web Seminar Outline ────────────────── Theme: Elucidation of Adhesion Mechanism and Evaluation Technology ~ For Adhesive Design Towards Medical Applications~ Date and Time: Thursday, June 25, 2026, 10:30-16:30 Recorded Viewing: Available Participation Fee: 49,500 JPY (tax included) *Materials will be distributed electronically URL: https://andtech.co.jp/seminars/1f13e2da-44bd-60e0-a382-064fb9a95405 Web Distribution Format: This will be a live streaming seminar using the web conferencing tool "Zoom". Details will be provided after application. Seminar Course Content Structure ──────────── Lecturer: Yoshinobu Nakamura, Visiting Professor, Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology / (Former) Nitto Denko Corporation Knowledge and Technical Challenges to Learn and Solve in This Seminar ─────────────────────── ① Observation methods for stringiness and morphology ② How to interpret morphology ③ How to utilize Pulse NMR and AFM force curves ④ Application to adhesive design (especially for medical use) All program items below (please see if you are interested in details) ────────────────────────────── [Key points of the lecture] Adhesive properties must be considered in collaboration with the substrate, not just the adhesive itself. Furthermore, final products such as medical devices are those with functions added to the adhesive layer and substrate. Designing with the question "why does it stick?" in mind shortens the path to the goal. [Program] ∽∽────────────────────────────∽∽ 1. What is Adhesion ∽∽────────────────────────────∽∽ 1.1 History of adhesive tape 1.2 Classification by base polymer Utilization of properties of rubber, acrylic, silicone, etc. 1.3 Classification by substrate Adhesive tape performance is a collaboration with the substrate ∽∽────────────────────────────∽∽ 2. Why it sticks ~ Adhesion Mechanism Elucidation ∽∽────────────────────────────∽∽ 2.1 Adhesion strength is "interfacial adhesion × elastic modulus" 2.2 Major differences from bonding 2.3 What is interfacial adhesion? ~ Chemical and physical interactions~ 2.4 Elastic modulus ~ Effects of elastic term and viscous term~ 2.5 Balance between interfacial adhesion and elastic modulus is important Easily evaluated by Pulse NMR 2.6 Adhesion expression by tackifier Tackifier is the key to morphology Morphology evaluation by Pulse NMR 2.7 Prediction of tackifier morphology Simple compatibility test 2.8 Rate dependence of adhesives Two-pronged approach: soft when adhering, hard when peeling 2.9 Adhesive design from morphology Utilization of Pulse NMR difference spectra ∽∽────────────────────────────∽∽ 3. Peel Test ∽∽────────────────────────────∽∽ 3.1 Beware of contamination of adherends in peel tests 3.2 Elucidation of viscous term effect from stringiness ∽∽────────────────────────────∽∽ 4. Tack Test ∽∽────────────────────────────∽∽ 4.1 Evaluate wettability with probe tack test 4.2 Utilization of probe shape and smoothness 4.3 Elucidation of viscous term effect with probe tack test 4.4 Quantifying the ball tack test 4.5 Comparison of multiple tack tests is important 4.6 Various precautions for tack tests as well ∽∽────────────────────────────∽∽ 5. Understanding the balance between interfacial adhesion and elastic modulus ∽∽────────────────────────────∽∽ 5.1 Pulse NMR relaxation spectrum 5.2 AFM force curves