Micro-nano fiber composite non-woven medical and sanitary material and preparation method thereof

Abstract

The invention discloses a micro-nano fiber composite non-woven medical and sanitary material and a preparation method thereof, and belongs to the technical field of non-woven composite materials and preparation thereof. The micro-nano fiber composite non-woven medical and sanitary material is composed of an outer layer, a middle layer and an inner layer, the outer layer is an electrostatic spinning polymethyl methacrylate nanofiber hydrophobic layer, the middle layer is a micron fiber layer, and the inner layer is a combination of an electrostatic spinning nanofiber antibacterial layer and an electrostatic spinning nanofiber additional functional layer. A good combination effect between the layers is guaranteed, the overall air permeability of the composite material is guaranteed, and liquid is effectively prevented from permeating into the material; the micron fiber layer serving as a middle layer can provide effective mechanical support and a certain barrier effect; the material of the inner layer in contact with the human body can provide a sanitary and safe microenvironment, and the electrostatic spinning nanofiber additional functional layer serving as the inner layer can also provide additional functions such as heating and growth factors; toxic and harmful substances in a medical and health scene are intercepted, and the excellent bacteriostatic and antibacterial effect is embodied; and the prepared product has good comfort in use.

Description

technical field [0001] The invention belongs to the technical field of non-woven composite materials and their preparation, and in particular relates to a micro-nano fiber composite non-woven medical and health material, and also relates to a preparation method thereof. Background technique [0002] Nonwoven materials for medical and health use include general medical supplies, external medical supplies, medical protective supplies, medical functional supplies, health care supplies and medical devices, etc. As the industry knows, medical supplies such as disposable surgical gowns and masks with excellent virus barrier effects play a very important and positive role in reducing or even preventing cross-infection and ensuring people's health and life safety. At present, the mainstream medical and sanitary nonwoven materials mainly use polypropylene fiber, and the preparation process generally uses spunbond and melt blown. The shortcomings of this type of product are: no antib...

AI Technical Summary

Problems solved by technology

[0004] Although the equipment and process of electrospinning technology have been continuously improved, and the output has also increased significantly, compared with traditional melt blown and spunbond preparation technologies, its production capacity is difficult to meet the urgent needs of industrial applications.

In addition, the nanofiber membrane constructed by a single nanofiber still has the problem of low strength.

[0005] In the published Chinese patent literature, it can be seen that all technical information related to nanofiber antibacterial nonwoven materials and its preparation, such as CN105839291A recommends "a kind of nanofiber antibacterial nonwoven material and its preparation method" CN110960925A provides "an antistatic Melt-blown composite antibacterial nanofiber nonwoven fabric and its preparation method" and CN111560707A introduced "a kind of composite electrospun micro-nano fiber antibacterial nonwoven sanitary material and its preparation method", etc., but are not limited to the aforementioned patents cited. There are shortcomings that it is difficult to combine the good barrier effect of preventing liquid from penetrating into the interior, ideal antibacterial ability, rich functions, and comfort during use. The technical solution to be introduced below is produced under this background