i-COFTEK 3300 Coefficient of Friction Testing Equipment is designed to determine static and dynamic coefficient of friction tests of plastic films, sheets, rubber, paper, paper board, PP woven bags, fabric style, and metal-material belts for communication cable, conveyor belts, wood, coatings, brake pads, windshield wipers, shoe materials and tyres, etc. Additionally the instrument could be used to test the smoothness of cosmetics, eye drops and other daily chemical products. Test Procedures A: Prepare test specimens [...]

Working in virtually nearly every facet of our lives, friction is the invisible force that allows, or hinders the movement of two surfaces that are in contact with one another. Coefficient of Friction is the ratio of the force that maintains contact between an object and a surface and the frictional force that resists the motion of the object. A packaging film’s “coefficient of friction” (COF) provides a relative indication of frictional characteristics. Controlling COF [...]

The ISO 8295 test method is used to investigate the static and dynamic frictional properties of film and sheet plastics when sliding on itself or other materials. This method is intended to be used for non-sticky plastic film and sheeting of up to 0.5 mm thickness. In principle, the test specimen is supported on a friction table, consisting of a horizontal test table, a sled, and a driving mechanism via a pulley to produce a [...]

Dry surfaces For low surface pressures the friction is directly proportional to the pressure between the surfaces.  As the pressure rises the friction factor rises slightly. At very high pressure the friction factor then quickly increases to seizing For low surface pressures the coefficient of friction is independent of surface area. At low velocities the friction is independent of the relative surface velocity.  At higher velocities the coefficent of friction decreases. Well lubricated surfaces The [...]

Coefficient of Friction (COF) is the measurement of resistance to friction as related to the effect of how smooth or rough a surface is to prevent material to “slip” across the surface. A low coefficient of friction for a pair of surfaces means they can move easily over each other. Ice and metal have a low coefficient of friction, so metal ice skates slide easily on ice. A high coefficient of friction for a pair [...]

Static and kinetic coefficients of friction are related to the slip properties of plastic films that are of wide interest in packaging applications. By testing the frictional properties of materials, the technical indexes could be controlled to meet requirements for production. How can we get the Static and kinetic coefficients of friction of plastic films and sheetings? ASTM D1894 descirbes a standard test method for static and kinetic coefficients of friction of plastic film and [...]

Dairy products as the daily necessity, plays more and more important role in our life. Many dairy manufacturers, in order to meet the demands of customers, promote new products with new packages. The flexible package quality control of dairy products, thus, becomes more prominent. Hereinafter is the introduction to the flexible package quality control and analysis. 1. The Testing and Analysis of the Composite/Bond Strength of Dairy Packaging Materials The flexible packages of dairy products, [...]

Proper coefficient of friction of the two sides of the clothing material can guarantee the good performances as well as smooth transportation and packaging in the assembly line. A. MXD Series of Coefficient of Friction Tester is applicable in static and kinetic coefficient of friction test to plastic film, foils, sheets and paper. Through testing the smoothness of the materials, comfortableness and safety of medical protective clothing can be guaranteed to meet the demands. This [...]

COF, coefficient of friction, also called friction coefficient, is to measure the ease between two surfaces, usually of two materials, when they are sliding against each other. The coefficient of friction is of wide application for material testing. A lower coefficient of friction indicates a smoother material surface with less resistance against the sliding. The coefficient of friction and other parameters of films and sheets are usually tested in dry condition, with the aid of COF tester.

On 17th-20th May, 2011, the 25th International Exhibition on Plastics and Rubber Industries was held in Guangzhou. Labthink exhibited her newly developed X series of intelligent products, and demonstrated powerful functions of Labthink CystemTM Online Laboratory Management System, the new laboratory intelligence concept based on cloud-computing. All have obtained favorable responses and recognition, and Labthink booth became one of the crowded booths among the exhibitors. Chinaplas 2011 is the debut for Labthink CystemTM Online Management [...]