Polypropylene electret air filtering material containing porous particles and preparation method of air filtering material

Abstract

The invention discloses a polypropylene electret air filtering material containing porous particles. The polypropylene electret air filtering material is prepared from components of raw materials in parts by weight as follows: 55-65 parts of polypropylene, 10-18 parts of silicon monoxide, 14-20 parts of powdered activated carbon, 2-6 parts of a 3-aminopropyl triethoxy silane coupling agent, 0.7-1.6 parts of glacial acetic acid, a proper amount of deionized water, 1-3 parts of low-density polyethylene wax, 0.7-2 parts of an antioxidant 1010, 0.6-1.4 parts of a titanate coupling agent, 3-5 parts of activated aluma powder and 2-4 parts of hydrotalcite. Silicon nanowires containing alpha-quartz are prepared and added to a melt-blown polypropylene electret material, and the material has excellent filter efficiency and an obvious function of inhibiting bacterial reproduction; the activated carbon is loaded with the silicon nanowires treated by the silane coupling agent, the capacity of the activated carbon for the silicon nanowires is improved, and the product has excellent filter performance.

Description

technical field [0001] The invention belongs to the field of air filtration, in particular to a polypropylene electret air filter material containing porous particles and a preparation method thereof. [0002] technical background [0003] With the progress of the times, people's requirements for environmental quality are getting higher and higher. However, the rapid economic development has aggravated the pollution of the environment, and the dust, chemicals, and harmful microorganisms in the air have had adverse effects on people's health. Therefore, effective control of harmful substances in the air is a major problem to be solved. The application of air filters and filter materials is an important means of purifying the air. Ordinary air filter materials are not thorough enough to remove fine particles, and harmful microorganisms are easy to breed on the filter materials, and there is a possibility of secondary pollution. Electret air filter materials provide the possi...

AI Technical Summary

Problems solved by technology

Ordinary air filter materials are not thorough enough to remove fine particles, and harmful microorganisms are easy to breed on the filter materials, and there is a possibility of secondary pollution