The effect of plasma treatment on the softness of silk fibroin film and silk fibroin coated fabric

• Categories:Technical Support
• Author:Plasma cleaning machine-CRF plasma plasma equipment-plasma surface treatment machine manufacturer-chengfeng intelligent manufacturing
• Origin:
• Time of issue:2021-10-30
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(Summary description)The effect of plasma treatment on the softness of silk fibroin film and silk fibroin coated fabric: Plasma is a non-condensed system produced by ionizing gas under certain conditions. It is composed of neutral atoms or molecules, excited atoms or molecules, free radicals, electrons or negative ions, positive ions, and radiation photons. Low-temperature plasma has the characteristics of improving the surface properties of the polymer without changing the properties of the polymer body, which is very suitable for the modification of textile materials. The plasma etching plasma treatment technology for fiber structure analysis is an early application of plasma treatment in the textile industry and has become a mature technology. Another application is the modification of textile materials. The material undergoes surface modification, graft polymerization and plasma polymerization deposition, etc., to change the surface affinity (phobic) water of textile materials, increase adhesion, and improve printing and dyeing performance. It is even possible to introduce new groups on the surface of polymer materials to change the surface potential, surface energy level component, dispersion component, and surface microstructure, thereby improving the surface properties of polymer materials and making them biocompatible biomedical Material. The regenerated silk fibroin film formed at room temperature has a certain degree of flexibility and water solubility, but after a period of time, the film becomes brittle and affects its use. Low-temperature plasma treatment of recycled silk fibroin film and recycled silk fibroin-coated polyester-cotton fabric: After treatment with low-temperature plasma, the stiffness of the regenerated silk fibroin film is reduced, that is, the flexibility is improved. The higher the vacuum degree during treatment, the better the softening effect. This may be due to the fact that more ions are generated when molecules are ionized, and they recombine with the dehydrogenation free radicals on the surface of the regenerated silk fibroin film, which increases the wettability of the regenerated silk fibroin film, thereby improving the flexibility of the regenerated silk fibroin film. The greater the degree of vacuum, the better the softness of the silk fibroin-coated fabric after low-temperature plasma plasma treatment. This is consistent with the conclusions before and after the regenerated silk fibroin film treatment, but the low-temperature plasma softening effect of the silk fibroin-coated fabric is not as good as the treatment effect. The regenerated silk fibroin film has a good low-temperature plasma softness treatment effect, and the softness effect of the O2 treatment silk fibroin coating fabric is better than the H2O treatment effect. After the recycled silk fibroin coating and polyester-cotton fabric are treated with low-temperature plasma plasma, their chemical cross-linking has a certain change, which can further enhance the comfort of the polyester-cotton fabric silk fibroin coating without adding any crosslinking agent. Practicality of finishing. After low-temperature plasma treatment, the regenerated silk fibroin film has a significantly higher water solubility than that without low-temperature plasma treatment, while the effect of treatment under O2 and H2O conditions is not much different. This may be due to the fact that new hydrophilic functional groups formed on the surface of the regenerated silk fibroin membrane and the chain structure of macromolecules have undergone certain changes after the treatment with low-temperature plasma plasma, which improves the hydrophilicity and water solubility. The vacuum condition has a greater influence on the effect of the regenerated silk fibroin film and the regenerated silk fibroin coating. The softness of the fabric is treated. The greater the vacuum, the better the softening effect. The H2O low-temperature plasma treatment has a better effect on the softness of the regenerated silk fibroin film, while the O2 low-temperature plasma treatment has a better effect on the softness of the regenerated silk fibroin-coated polyester-cotton fabric. After low-temperature plasma treatment, the water solubility of the regenerated silk fibroin film is obviously increased, but it has little effect on the hot water loss rate of the silk fibroin-coated fabric.