Abstract: Peel strength is a physical quantity that reflects the composite fastness of composite membrane materials, and is an important performance index of composite membrane materials. In this paper, the process of Labthink XLW (EC) intelligent electronic tensile testing machine peel strength aluminum pharmaceutical packaging composite film, for example, describes the information detecting soft plastic packaging fastness test principle and the monitoring method, device parameters, as The enterprise provides a reference for monitoring the heat seal strength of the package and selecting the corresponding testing equipment. Keywords: composite fastness, peel strength, intelligent electronic tensile testing machine, pharmaceutical, aluminized composite film, soft plastic packaging, layering 1 , meaning The composite membrane material is a composite process of dry composite, extrusion composite, etc., which combines two or more single-layer membranes, and the performance of each single-layer membrane is complementary, so that the barrier properties, physical and mechanical properties, etc. of the composite membrane are formed. The performance has been greatly improved. The composite fastness of each single-layer film has a great influence on the performance of the composite film. If the composite fastness is low, delamination is easy to occur, which not only affects the appearance of the drug packaging, but also causes the mutual reinforcing effect between the single-layer films to weaken. The barrier property and physical and mechanical properties of the composite film are lowered. In addition, if the peel strength of the package is low, the composite fastness is poor, and during the tearing process of the packaging bag, delamination is likely to occur, that is, the tearing performance of the packaging bag is poor. , affecting the feeding of medicines. Therefore, it is of great significance to strengthen the monitoring of the composite fastness of composite membrane materials. 2 , the status quo Composite film materials for pharmaceutical packaging cover plastic composite film, aluminum-plated composite film, aluminum-plastic composite film, etc. The test of peel strength of these materials mainly refers to the standard YBB00132002 "General Rules for Composite Film Bags for Pharmaceutical Packaging". 3 , test samples A brand of aluminum alloy composite film for pharmaceutical packaging. Figure 1 Aluminized composite film and bag 4 , testing equipment In this paper, the XLW (EC) intelligent electronic tensile testing machine independently developed by Jinan Languang Electromechanical Technology Co., Ltd. is used to detect the peel strength of the aluminized composite film samples. Figure 2 XLW (EC) intelligent electronic tensile testing machine 4.1 Test principle The fixture of the device is divided into upper and lower two, the upper clamp can move at a preset speed, and the lower clamp remains fixed. During the test, the two ends of the sample are clamped in the upper and lower clamps respectively. As the upper clamp moves, the specimen undergoes tensile, peeling or tearing, and the force and displacement changes caused by the change of the sample. The force value sensor and the displacement sensor respectively placed on the movable chuck are respectively monitored, and according to the monitoring result, the tensile force, deformation rate, peel strength and the like of the sample are calculated. 4.2 Scope of application (1) This equipment is specialized in plastic film, composite materials, flexible packaging materials, plastic hoses, adhesives, adhesive tapes, stickers, medical patches, release papers, protective films, composite covers, metal Stretching, peeling, deformation, tearing, heat sealing, bonding, puncture force, opening force, low speed unwinding force, peeling force, etc. of foil, separator, back sheet material, non-woven fabric, rubber, paper, etc. tests, such as oral tearing force of the lid, the piercing / drawing force, puncture force infusion bag cover, soft rubber stopper piercing / drawing force and the like. (2) This equipment meets a number of national and international standards, such as GB 8808 , GB/T 1040.1 ~ GB/T1040.4 , GB/T 1040.5 , GB/T 4850 , GB/T 12914 , YBB00132002 , ISO 37 , ASTM E4 , ASTM D882 , JIS P8113 , QB/T 2358 , QB/T 1130, etc. 4.3 Equipment parameters 5 , test steps (1) Cut 5 strips each with a width of 15 mm and a length of 200 mm along the transverse and longitudinal directions of the sample . (2) Each strip is manually stripped 50 mm in advance . (3) The two ends of the sample stripping portion are respectively clamped in the upper and lower jigs of the device, and the longitudinal axis of the sample stripping portion coincides with the center line of the upper and lower jigs. Figure 3 sample clamping process (4) Set the parameter information such as test speed and sample width, click the test option, and the test starts. (5) The equipment automatically detects the change of the force value during the test, and calculates and displays the peel strength value of the sample zui based on the detected data. 6 , test results The transverse peel strengths of the aluminum-clad composite film samples tested in this paper were 1.06 N/15mm , 1.13 N/15mm , 1.09 N/15mm , 1.11 N/15mm , 1.04 N/15mm , and the longitudinal peel strength was 1.21 N/ 15mm , 1.19 N/15mm , 1.25 N/15mm , 1.17 N/15mm , 1.23 N/15mm . 7 , conclusion It is not difficult to see from the above test process that the XLW (EC) intelligent electronic tensile testing machine has the advantages of simple test operation, high intelligence degree, accurate detection result and high test precision in detecting the peeling strength of the composite film. XLW (EC) intelligent electronic tensile testing machine is an extremely widely used testing equipment, in addition to testing the peel strength of medical packaging composite film, it can also be used for the tensile properties of packaging bags, infusion bag caps, stoppers, etc. Puncture force, drawing force, opening force and other performance tests, cost-effective. Labthink is committed to providing professional testing equipment and services to customers all over the world. The testing equipment developed by the company covers almost all aspects of the performance testing of soft plastic packaging. For information about the testing equipment, you can visit the Jinan Languang Company or Call directly for advice. Labthink is looking forward to enhancing technical exchanges and cooperation with enterprises and institutions in the industry! 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