Test method for friction coefficient of PTFE film in pharmaceutical industry

Abstract: PTFE membrane is a kind of microporous membrane which is made of polytetrafluoroethylene dispersion resin by special processes such as premixing, extrusion, calendering and biaxial stretching According to different industries, its production process and characteristics are different At present, PTFE air purification membrane is widely used in medical industry As a new type of filter material, PTFE membrane has the advantages of uniform distribution, large porosity, non adhesion, durability, fire resistance, high antifouling, etc while maintaining air circulation, it can filter all dust particles including bacteria, so as to achieve the purpose of purification and ventilation Key words: PTFE film, polytetrafluoroethylene, PTFE film in pharmaceutical industry, friction coefficient, test PTFE film, friction coefficient instrument test sample: PTFE film special for pharmaceutical industry (provided by customers of Jinan Saicheng instrument) test instrument: mxd-02 friction coefficient instrument independently developed by Jinan Saicheng, which can measure static and dynamic friction coefficient at the same time, with adjustable speed and measuring range Scope of application: plastic film and sheet, textile, non-woven fabric, aluminum foil, aluminum plastic composite film, metal material composite belt for communication cable and optical cable, metal products, rubber, paper, cardboard, woven bag, conveyor belt, wood, coating, brake pad, wiper, shoe material, tire and other materials static friction coefficient and dynamic when sliding Friction coefficient can also be used to test the smoothness of cosmetics, eye drops and other daily chemicals Executive standard: GB 10006-1988 test method of friction coefficient of plastic film and sheet ISO 8295-1986 test of friction coefficient of plastic film and sheet main body: Medical PTFE film is a material with low friction coefficient Zui in solid materials Due to its special application, the requirement of friction coefficient is very strict Once the friction coefficient is too large, it is likely to affect the performance and quality of products, thus causing huge losses to enterprises Therefore, in order to avoid the above problems, it is an indispensable part for enterprises to test the friction coefficient of PTFE film scientifically before entering into production Next, we will record the whole experimental process, and provide reference for enterprises to monitor the friction coefficient of PTFE film Preparation: 1 Cut two pieces of 60mm x 100mm PTFE film in the center according to the sample provided by the customer 2 Check the surface of the sample to ensure that it is flat, free of wrinkles, dust, fingerprints or scratches and other factors that may affect the friction coefficient 3 Check the horizontal test bench to ensure that it is smooth; the slide block has a square bottom with an area of 40 cm 2, and the bottom is covered with felt, so as to avoid wrinkling out of the sample and affecting the test results Experiment process: 1 Fix one of the sample surface upward, flat and fixed on the horizontal test bench, both in parallel direction; wrap the slide block with the other sample surface downward, and fix the sample on the front and upper surface of the slide block with adhesive tape 2 Place the slide lightly over the sample and hold for 15 seconds to ensure full contact between the two 3 Set the parameters, start the instrument, pull the slider and sample through the left force sensor, and make them move relatively 4 The * peak value displayed by the instrument is the static friction force FS, and the average value of the two forces (excluding the static friction force) within 6 cm of relative movement is the dynamic friction force FD 5 The system automatically prints out the experimental results, which is convenient for users to analyze 6 Repeat the above experiments to ensure the accuracy of the results At present, the mxd-02 friction coefficient instrument independently developed by Jinan Saicheng has successfully passed the inspection of thousands of customers It tends to be used in technology and operation, and the system accessories are all imported components with world-famous performance, which is stable and reliable Therefore, it is widely appraised and trusted in the market As a high-tech enterprise integrating R & D, manufacturing, sales, training and service, Jinan Saicheng has always been committed to serving global customers from multiple perspectives Its self-developed nearly 100 kinds of testing instruments can meet customers' different needs, more acceptable for non-standard customization, and truly solve testing for customers Problems For more information on the tear strength, tensile strength, impact resistance, thickness, leakage and sealing strength of PTFE film, please call Jinan Saicheng technology directly