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Understanding pressure sensitive tape peeling

xinst3月 24, 2020

The full name of pressure-sensitive adhesive is pressure-sensitive adhesive, also known as pressure-sensitive adhesive, referred to as pressure-sensitive adhesive. Pressure-sensitive adhesive products include pressure-sensitive adhesive tape, pressure-sensitive adhesive label paper, and pressure-sensitive film. Their full name is pressure-sensitive adhesive tape, pressure-sensitive adhesive label paper, pressure-sensitive adhesive sheet, commonly known as tape, self-adhesive label paper, pressure-sensitive film. This component has been adjusted to achieve better product performance.

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Concept of peeling force

The force required to peel the tested tape from the object is one of the most important indicators of the tape.

It is also a reference index used to quickly determine whether product batches are consistent. It has practical significance in quality assurance (QA) and quality control (QC).

Total peeling energy = energy of interface peeling (physical adsorption) + energy absorbed by colloid deformation (rheological properties of glue) + energy absorbed by deformation of backing material (rheological properties)

 

step:

1. Attach the test tape to the specified backing material and cut it into 25.4MM * 20MM sheets (or 10MM * 20MM sheets) in the longitudinal direction.

2. Stick the other side to the standard test steel plate (SUS 304 steel plate), and press it back and forth 3 times with a 2KG pressure roller.

3. Peel at an angle of 180 (or 90 °) after standing for a certain time. The peeling length is about 100MM and the peeling speed is 300MM / MIN.

4 The peeling force curve graph and value are displayed on the tensile machine, and the average of the three tests is taken.

5. Experimental environment: Normal temperature and humidity.

 

 

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