Material Science Insights: Analyzing the Thermodynamic and Rheological Profiles Tunsing’s DS001TS Hot Melt Adhesive Film

Material Science Insights: Analyzing the Thermodynamic and Rheological Profiles Tunsing’s DS001TS Hot Melt Adhesive Film

in advanced material processing, micro-level thermal behavior directly dictates macro-level engineering success. Shenzhen Tunsing Plastic Products Co., Ltd. has released comprehensive laboratory data for its DS001TS Copolyester Hot Melt Adhesive Film, providing global engineers with the exact thermodynamic and rheological metrics needed for precision bonding.

To map out the phase transitions of the copolyester film, the Tunsing Laboratory utilized a Netzsch DSC 214 instrument to conduct Differential Scanning Calorimetry (DSC). The test was executed under a controlled nitrogen atmosphere with a heating rate of 10°C/min, scanning thermal effects across a temperature range of -80°C to 200°C.

The resulting DSC curves reveal critical thresholds:

• Glass Transition Temperature (Tg): A distinct endothermic effect observed near 5.8°C marks the material's glass transition threshold, ensuring low-temperature flexibility (with various baseline states analyzed between 11.9°C and 38°C depending on the molecular batching).

• Melting Temperature (Tf): A prominent endothermic peak is registered at 95.1°C with a complex peak area of 10.53 J/g. This correlates precisely with the product's macro melting range of 80°C - 105°C, guaranteeing rapid melting and quick cycle times during hot pressing.

Understanding when a solid film turns into a structural fluid is vital for managing adhesive squeeze-out and wetting. Tunsing subjected the DS001TS film to dynamic mechanical measurements using an Anton Paar rotational rheometer in a dynamic parallel plate configuration. The temperature was ramped at 2.5°C/min to track the Storage Modulus ($G'$), Loss Modulus ($G''$), and Complex Viscosity ($eta^*$).

As the temperature scales up, both the storage modulus and complex viscosity decline predictably. Crucially, the rheological graph indicates that the crossover point—the exact temperature where the material transitions from a viscoelastic solid to a viscoelastic fluid—occurs at approximately 78.1°C.

In standardized peel strength tests—utilizing a 0.10mm film on a 25mm*120mm cotton cloth backing laminated at 155°C with the release paper peeled off—the DS001TS demonstrated its optimal performance band near the 150°C zone.

Reflecting Tunsing's commitment to precision engineering, the technical documentation for DS001TS has been continuously updated. The current Version 1.4 represents an evolutionary milestone, incorporating newly added transition temperature curves and refined product standards to provide complete transparency to global industrial users.

#Tunsing DS001TS, Copolyester hot melt film, Adhesive film parameters, Netzsch DSC adhesive, and Anton Paar rheometer glue