Case sharing of modified starch film detected by vac-v2 packaging oxygen permeating instrument

Labthink blue light vac-v2 packaging oxygen permeating instrument, in accordance with GB / T 1038-2000 (test method for gas permeability of plastic film and sheet), ASTM d1434 (test method for air permeability of plastic film and sheet), ISO 2556, ISO 15105-2, YBB 00082003 and other standards are applicable to the measurement of gas permeability, solubility coefficient, diffusion coefficient and permeability coefficient of plastic film, composite film, high barrier material, sheet, metal foil, rubber, tire air tightness and permeability film at various temperatures Vac-v2 packaging oxygen permeating instrument, i.e blue light differential pressure air permeating instrument This paper will share a test case of vac-v2 equipment, and provide reference help for you to carry out material testing and research! Detection of oxygen transmittance of modified starch film: test sample: modified starch film researched by a scientific research institute Test equipment: vac-v2 packaging oxygen permeating instrument (differential pressure gas permeating instrument) test item: reference standard for oxygen permeating rate of modified starch film: GB / T 1038-2000 test method for gas permeating of plastic film and sheet - differential pressure method special treatment: In view of the high brittleness of the modified starch film sample in this test, in order to prevent the starch film from damaging the sensor of the equipment during the test process, the vac-v2 differential pressure gas permeameter is used to test the oxygen resistance of the sample in this test In the process of the differential pressure test, a piece of filter paper for supporting the sample should be placed under the sample, and the filter paper can prevent the broken modified starch film fragment Enter the inside of the device The test process: (1) three samples with diameter of 97 mm were cut from the surface of modified starch film (2) Apply a layer of vacuum grease around the three test chambers of the equipment, and place a piece of 65 mm diameter filter paper in the test area Paste the cut sample on the test chamber, close the chamber and tighten it (3) Set parameter information such as sample name, test temperature and test humidity (4) Click the test option to start the test, turn on the vacuum pump, and the system will vacuumize automatically (5) After the test, the equipment displays the test results of three test chambers Test results: the oxygen permeability of the modified starch membrane samples was 5.6341 cm 3 / (m 2.24h · 0.1MPa), 6.0148 cm3 / (m2.24h · 0.1MPa), 5.8691 cm3 / (m2.24h · 0.1MPa), the average value was 5.8393 cm3 / (m2.24h · 0.1MPa) Modified starch film is a kind of degradable and environmental friendly material In the research and application of modified starch film packaging materials, the level of oxygen resistance is one of the performance indicators that should be paid attention to With vac-v2 packaging oxygen permeating instrument as the testing equipment, the oxygen permeating capacity of modified starch film samples was tested The test process was simple, the equipment was easy to operate, the test data had high precision and good repeatability, which could accurately reflect the oxygen resistance of the tested film samples Labthink Languang is committed to helping customers deal with packaging problems and quality and safety of packaging related industries by improving packaging testing technology and developing high-end testing instruments For more information, you can visit Jinan Languang Electromechanical Technology Co., Ltd to check the specific information or call for consultation Labthink is looking forward to enhancing technical exchanges and cooperation with enterprises and institutions in the industry.