Factors that affect peel strength of tape adhesives

In summary: Adhesives Technology for Electronic Applications" by James J. Licari, Dale W. Swanson, and Philip E. Bussinger 7. "Handbook of Adhesion" by D. E. PackhamIn summary, the main factors that affect the peel adhesion strength of adhesive tapes are the surface topography, surface energy, and the type of adhesive used. The surface topography should be smooth and free of any contaminants, and surface energy can be increased with the use of a primer or activator. The thickness of the tape and the duration of contact also play a role in the peel adhesion strength. Good references for further learning on this topic include "Adhesion Science" by Hans-Jur
  • #1
AeroMech
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I am working with flexible electrostatic adhesive pads. These are similar in many ways to a normal adhesive tape in but the adhesion can be turned on and off electrically. Like many adhesives they are notoriously weak in peel.
This bring me to my problem. I am trying to get a qualitative idea about how changes properties of the substrate material will affect the peel adhesion strength. Does anyone know what factors most predominately affect the peel strength of normal adhesive tapes? Any good references to check out to learn more?
 
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The main factors that affect the peel adhesion strength of adhesive tapes are the surface topography, surface energy, and the type of adhesive used. The surface topography should be smooth and free of any contaminants to ensure maximum adhesion. Surface energy can be increased by using a primer or an activator to increase the surface energy of the substrate material. The type of adhesive used will also affect the peel strength, with different adhesives having different adhesion properties. Additionally, the thickness of the adhesive tape and the length of time it has been in contact with the substrate material can influence the peel adhesion strength. Good references to learn more about this topic include the following: 1. "Adhesion Science" by Hans-Jurgen Hvolkmann and Heinz W. Siesler 2. "Adhesion and Adhesives Technology" by Arthur H. Landrock 3. "Handbook of Adhesive Technology, Third Edition" by Alexander A. Harwood 4. "Adhesion and Bonding in Polymeric Coatings" by Sheng Hu 5. "Adhesives Technology Handbook, Third Edition" by Celestine A. Akwagala
 

1. What is the definition of peel strength in tape adhesives?

Peel strength is the force required to peel apart two surfaces adhered together with tape adhesive. It is typically measured in pounds per inch or Newtons per meter.

2. How does the type of adhesive affect peel strength?

The type of adhesive used can greatly affect the peel strength of tape. Adhesives with high tack and high shear strength tend to have higher peel strength compared to those with low tack and low shear strength.

3. What role does surface preparation play in peel strength?

Surface preparation is crucial in achieving optimal peel strength of tape adhesives. Surfaces should be clean, dry, and free of any oils, dust, or debris. Proper surface preparation can greatly improve the adhesion of the tape and increase peel strength.

4. How does temperature affect peel strength?

Temperature can have a significant impact on the peel strength of tape adhesives. In general, higher temperatures can soften the adhesive, making it easier to peel off. However, extreme temperatures can also cause the adhesive to lose its effectiveness, resulting in lower peel strength.

5. What are some other factors that can affect peel strength of tape adhesives?

Other factors that can affect peel strength include the type and condition of the surfaces being bonded, the thickness and width of the tape, and the duration of the bond. Additionally, environmental factors such as humidity and exposure to chemicals can also impact peel strength.

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