Dear Colleagues.
Currently, I am developing a polymer-based adhesive and want to analyze its properties. I do not have access to advanced instruments such as DMA, TGA, DSC, or other instruments that are usually used to analyze the adhesive properties of the polymer blend. I can only use a modified universal testing machine and its mechanism is similar to a probe tack test machine.
The probe is a 138 g cylinder (diameter approx. 0,7 cm) made of stainless steel. The dwell time, temperature, and force are not standarized (but the repeatability of the experiment is quite good) while the pull rate is 100 mm/min. I attach the graph from polymer blend A and polymer blend B.
How can I relate this graph to important adhesive properties such as tackiness, peel, and shear?
Thank you.
If the graph does not clear enough, I attach a better resolution version.
In my opinion and with the required modesty, tensile tests are the most important tests in practice. They will give you information about the strength of the adhesive in relation to the strength of the material and you can check if the failure is adhesive or cohesive and if the values and manner of failure are right for you.
You can, depending on the application of the glue and the reasonable use that you plan to recommend for it, also perform impact tests and vibration tests. If necessary, mechanical tests can also be performed before and after contact with various chemicals.
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