Breathable membrane material

Abstract

The invention relates to a breathable membrane material, which comprises the following raw materials by weight percentage: 30%-65% of a full degradable biological material, 30%-60% of a pore-foaming agent, 1%-3% of an antibacterial agent, 0.1%-2% of a surface treatment agent, 3%-5% of a dispersant, and 0-1% of other additives. The breathable membrane material provided by the invention is a full degradable antibacterial biological breathable film, can be degraded into small molecules completely after abandonment, is an environment-friendly material, has an antibacterial rate up to 98%, and has the advantages of petroleum resource saving, environmental pollution reduction, low carbon and environmental protection, no harm to human body, good biocompatibility, good dispersion, uniform pore size distribution and large ventilation capacity, etc.

Description

[0001] Technical field: [0002] The invention belongs to the field of polymer materials, in particular to a breathable film material, which is mainly used in the field of personal care products, such as disposable diapers, women's sanitary napkins and the like. [0003] Background technique: [0004] Breathable membrane is also called "waterproof and breathable microporous membrane", which is characterized by water vapor permeability and liquid water impermeability. Mainly by adding porogen and special processing technology, the membrane has numerous micropores with openings, and its pore diameter is about 0.01 ~ 10um. It can only pass through water vapor molecules with a particle size of about 0.4nm, but cannot pass through liquid water droplets or raindrops and other large particle sizes. It is mainly used in the fields of medical care and personal care products, such as disposable diapers, women's sanitary napkins, etc. . At present, the breathable membranes on the market ...

AI Technical Summary

Problems solved by technology

The patent is to add the inorganic masterbatch to the biological material PHA, which is cumbersome and costly

Although biodegradable, it is not antimicrobial and can cause bacterial growth during use, which can damage the skin it comes into contact with

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