Introduction of test method for water vapor permeability of silicone gel film (scar paste)

Key words: scar paste, silicone gel film, and water vapor transmission scar are the collectively referred to as changes in surface morphology and internal tissue during wound healing They are generally classified into superficial scars, hypertrophic scars, atrophic scars and keloids In daily life, collagen synthesis is accelerated, fibroblasts proliferate, and hypertrophic scars are easily formed after layer trauma caused by burns, cuts and infections The color of this tissue is red and purple, which is higher than that of normal skin, accompanied by itching, swelling and pain It is very difficult to recover in a short time, causing severe external and mental impact on patients In recent years, silicone gel film (also known as scar paste) has been widely used in scar repair, prevention and treatment Silicone gel film is a new type of medical patch made of medical polymer material Its texture is soft, self adhesive, reusable, and can prevent scar hyperplasia After more than 30 years of research and verification by medical workers at home and abroad, the film is effective in treating scars, especially hypertrophic scars This paper will introduce the detection method of water vapor transmittance of silicone gel film combined with Labthink LAN Guang W3/030 vapor transmittance tester The silicone gel film has good oxygen permeability and lower moisture permeability than normal skin, so that the skin can store adequate moisture After absorbing moisture, the skin inhibits capillary regeneration and reduces collagen deposition At the same time, the increase of water content in the cuticle of the skin can increase the permeability of water-soluble proteins and products in the stroma, which can spread rapidly, make the scar soften and fade, the pigment become light, and relieve the itching pain The W3 / 030 water vapor transmissivity tester developed and produced by Labthink Languang, which is based on the principle of cup method, can be used to measure the water vapor transmissivity of plastic film, composite film and other films, sheet materials, medical and building materials The equipment implements gb1037, GB / t16928, astme96, ybb00092003 and other standards, adopts three cavity mean design, and can test three identical samples at a time, greatly improving the test efficiency Because the thickness of silicone gel film is large, Labthink blue light professionally customizes and heightens the moisture permeable cup to facilitate the detection of moisture permeability of silicone gel film The test process is simple, and the finished silicone gel film sample is clamped to the moisture permeable cup, and the cup mouth is sealed Then put the moisture permeable cup into the test machine and close the test chamber Set the experimental parameters and start the test The whole test process is finished automatically without manual intervention, and the test results are displayed in the software The water vapor permeability of silica gel film can directly reflect the moisture permeability of products and affect the use and treatment effect of products In addition, quality control of other physical properties such as tensile strength and thickness of silicone gel film still needs inspection and control and in-depth study by relevant enterprises and researchers For more information about related testing instruments, you can visit for specific information Jinan Languang Electromechanical Technology Co., Ltd is willing to take this opportunity to enhance technical exchanges and cooperation with enterprises and institutions in the industry.