Plastic films are slippery in nature. When they are used as lamination on packaging materials, it can lead to slippage when they are stacked one above the other. To determine the stackability strength of the plastic films of laminate sheets, it is important to measure the coefficient of friction strength of the products.

Testing the COF strength of the films is of high significance because it helps to prevent accidents during shipping and transportation. The test helps to determine the slip properties of the material. You might be now thinking about how to test the coefficient of friction strength of plastic films or laminates.

Well… the solution is the Coefficient of friction testing machine

The laboratory testing equipment is used to evaluate how easily the two facades of the material will slide over each other. If the value of friction obtained from the test is low, it implies the plastic film surface is slicker in nature which means that it is less resistant to sliding and vice versa.

Continuing the discussion, here will discuss Pacorr's Coefficient of Friction Tester and how the testing machine can help you measure the quality of the plastic films and laminates. Let’s dig in.

How to determine COF using Pacorr’s Testing Machine?

Coefficient of friction testing machine is used to determine the sliding strength of two plastic surfaces when they are placed one above the other. The amount of strength utilized by both the surfaces to slide to the force acting perpendicular to the surfaces is the value of COF.

Mathematically, the formula of COF is
μ = F/N
where,

N = Normal force,
F = Frictional force.

Both F & N are measured in units of force.

The test results from the coefficient of friction COF tester indicates that the lower the co-efficient friction value the more slicker the surfaces will be which means that the material is less resistive to sliding.

The Pacorr’s Coefficient of Friction Tester (COF) helps to examine the angle at which the product will begin to slide. The testing machine is efficient enough in determining the friction quality of a plastic film or laminate sheet and tells the amount of friction force is actually exerted when two similar substrates are slided against each other. The test results will be recorded on the digital display that works on microprocessor based programs. The test machine is designed on various national and international test standards such as ASTM D 883, ASTM D 618, ASTM D 1894 and BS 2782, which ensures the accuracy of the results.

You can easily buy this testing machine from any reputed manufacturer in the market such as Pacorr Testing Instruments. For more information on the usage, specifications and features of the testing machine, contact us at +91-8882149230 or drop your queries at [email protected]. Our team of technical experts will reach out to you.