Organosilicon porous breathable disinfection and sterilization nano-filtration material for masks and preparation method thereof

Abstract

The invention relates to an organosilicon porous breathable disinfection and sterilization nano-filtration material for masks and a preparation method thereof, the organosilicon porous breathable disinfection and sterilization nano-filtration material for masks is synthesized from a component A and a component B. The component A comprises the following components: methyl vinyl polysiloxane, methylhydrogen-containing polysiloxane, a chain extender, a foaming agent, a tackifier, an alkynol inhibitor and a sanitizer; and the component B comprises the following components: methyl vinyl polysiloxane, an anti-structuring agent, a weak reinforcing agent, a foam stabilizer and a platinum catalyst. After the organosilicon porous breathable disinfection and sterilization nano-filtration material for the mask is mixed and cured, the section foam holes are fine and uniform; the material has the advantages that the mask is flexible and transparent, enough breathing channels of the mask are guaranteed, the surface area is huge, the surface is full of stickiness and disinfection and sterilization factors, viruses and bacteria can be effectively adhered and killed, and the mask can be kept safe and sanitary in the long-time use process.

Description

technical field [0001] The invention relates to a porous silicone gas-permeable disinfection and sterilization nano-filter material for masks and a preparation method thereof, belonging to the technical field of silicone materials. Background technique [0002] Medical masks are composed of a mask body and a tension belt. The mask body is divided into three layers: inner, middle and outer. The inner layer is skin-friendly (ordinary sanitary gauze or non-woven fabric), and the middle layer is an isolation filter layer (ultrafine polypropylene fiber Melt-blown material layer), the outer layer is a special material antibacterial layer (non-woven fabric or ultra-thin polypropylene melt-blown material layer). According to performance characteristics and scope of application, medical masks can be divided into medical protective masks, medical surgical masks and ordinary medical masks. Among them, medical protective masks (including N95 and KN95 masks) have the highest protection l...

AI Technical Summary

Problems solved by technology

However, the use efficiency and safety factor of medical protective masks in medical operations and major health protection have not yet reached ideal expectations. %, and long-term use, the filtration efficiency gradually decreases; 2, it can only block most bacteria, viruses and other pathogens, does not have the functions of disinfection and complete blocking of body fluid splash penetration, and cannot be applied to major health accidents such as new coronaviruses In medical operations, especially high-risk operations that may splash, such as tracheotomy and tracheal intubation; 3. Low air permeability, not suitable for some infirm or people with cardiopulmonary diseases, and also suitable for patients with respiratory diseases who have difficulty breathing Not very applicable; 4. Poor moisture resistance, wearing a medical protective mask for a long time, due to the water vapor in the mouth, the mask is easy to get wet, resulting in a serious reduction in filtration efficiency and safety factor

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