Nano air filter paper and preparation method thereof

Abstract

The invention relates to the technical field of air filter paper, and discloses nano air filter paper which comprises filter paper body paper and impregnation liquid for curing same; the filter paper body paper comprises the following components in parts by weight: 60-80 parts of alkali-treated cotton linter pulp, 15-20 parts of alkali-free glass fiber chopped strands, 10-20 parts of a carbon nanofiber polymer, 10-15 parts of a silicon dioxide filler, 1.5-5 parts of modified starch light fat calcium carbonate, 2-10 parts of silicate fibers, 5-15 parts of polyimide fibers and 5-10 parts of PET-PP composite short fibers; the impregnation liquid is prepared from the following components in parts by weight: 5 to 10 parts of styrene-acrylic emulsion, 0.2 to 0.4 part of organic tin stabilizer, 40 to 50 parts of thermoplastic phenolic resin, 80 to 120 parts of industrial methanol and 3 to 5 parts of retention aid. The filter paper has the beneficial effects that the tightness is good, the paper is compact, the strength is high, the water resistance is good, the service life is long, and the production, processing and manufacturing of a filter element of a filter and the high requirement of the filter paper in use can be met.

Description

technical field [0001] The invention relates to the technical field of air filter paper, in particular to a nanometer air filter paper and a preparation method thereof. Background technique [0002] Air filter paper is a key component of the air filter element, and its performance determines the effect of the air filter. As the pharmaceutical, medical and health, electronics and other industries have higher and higher requirements for the cleanliness of workshops, higher requirements are put forward for air filters. However, due to the fact that the existing air filter paper is made of ordinary wood pulp fibers, there are generally disadvantages such as high compactness, low filtration efficiency, low ash capacity, and short life, and its filtration efficiency is generally lower than 90%, and the paper-made High-quality air filter paper also generally has poor curing and insufficient water resistance. When the air humidity changes, the paper is prone to deformation, which i...

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the air filter paper in the prior art with too high or too low tightness, loose paper quality, low strength, poor water resistance, short service life, which cannot satisfy the production and processing of filter elements and the use of filter paper itself. Insufficient requirements, provide a kind of nano-air with good tightness, compact paper quality, high strength, good water resistance, long service life, which can meet the high requirements of the production and processing of filter elements and the filter paper itself in use. Filter paper and its preparation method