The maximum force is usually taken as the measurement of stickiness.
After this time the probe then withdraws to a chosen distance at a chosen speed in order to measure the force to separate the two surfaces and provide a measure of stickness/adhesiveness. It allows the testing probe to approach the sample at a chosen speed and then apply a chosen force for a chosen period of time (to allow a good controlled bond to be achieved between the two surfaces). In Exponent software a special test is available called an ‘Adhesive Test’ which focuses on the measurement of this property. The ability to measure this property will allow manufacturers to control the quality of a product or assess stages in production so as to avoid downtime dough, and can cause production stoppages and product failures. adhesive pastes or tapes, confectionery products and thereby their salient feature or can be a major issue for a product, e.g. Why perform an adhesion test?Īdhesive properties can be the most desirable characteristic of a product e.g. The operator is given the ability to control the data acquisition rate (2000pps advised for maximum detail collection from a quick test), the probe separation rate, the probe material and a controlled force to apply to the sample. Stable Micro Systems has a wide range of solutions for the purpose of holding down a product in order to be able to successfully measure its adhesive properties. The success of the measurement depends on the means of being able to hold the sample in order to pull away from it and measure the ‘withdrawal’. The distance the probe needs to be pulled away from the product before the two surfaces are separated will also indicate its viscoelastic behaviour, and depending upon the product, its ‘tailing’ or ‘stringiness’ characteristic. The higher the force to separate these surfaces, the more adhesive is the product. Adhesiveness ('Stickiness') is most commonly measured with a cylinder probe, which is pressed (application of compression), onto the surface of the sample after which the force to pull the probe off it is measured. An adhesion test measures the adhesive characteristics of a product by measuring the forces to separate the product from the test surface which it comes into contact with. World leaders in texture analysis and volume measurement FIND OUT WHYĪdhesion is the force that resists the separation of two bodies in contact.
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