A Versatile Compond Material that Removes Gaseous Contaminants from Offices around the Clock

Surveys have shown that office air pollution is 2 to 5 times higher than that of the outdoors, and 800,000 people die every year from office pollution. The sources of office air pollution can be divided into three parts: first, pollution from office equipment, such as computers, photocopiers, printers, etc.; second, from the office decoration materials, such as coatings, paints, plywood, particleboard, composite boards, etc.; Third, pollution from the body's own activities, including the pollution of smoking and the pollution generated by the body's own metabolism.

The main gas pollutants in the office include ozone, formaldehyde, benzene, nitrogen oxides, sulfur oxides, etc. A variety of methods have been adopted at home and abroad to control gas pollutants in the office, and because porous materials have good adsorption of many gases, they are widely used to adsorb harmful gases and control air pollution. Commonly used porous materials include activated carbon, molecular sieve, activated alumina, etc., but the adsorption mechanism of ordinary porous materials is mostly physical adsorption, which does not involve the use of chemical reactions to completely eliminate gas pollutants, and the physicochemical parameters of the porous materials themselves will also have a significant impact on the removal effect of target pollutants, including material size, temperature, humidity, hardness, etc., for example, the size of the material is inversely proportional to the adsorption effect, and the high temperature and high humidity environment will greatly inhibit the adsorption performance of porous materials. The low temperature and high humidity environment is conducive to the adsorption of ozone and carbon dioxide by porous materials, and the high temperature and low humidity environment is conducive to the adsorption of formaldehyde and nitrogen oxides by porous materials, so it is difficult for porous materials to meet the air purification effect at different ambient temperatures.

Based on the above requirements, our company has developed a multi-functional composite material that can remove gas pollutants in the office around the clock, which is composed of porous materials and phase change materials, which perfectly solves the all-weather air pollution in the office, and the composite material presents a low temperature and high humidity micro-environment during the day, which can efficiently remove ozone in the office; At night, it presents a high temperature and low humidity micro-environment, which can efficiently remove formaldehyde, benzene, nitrogen oxides and other gas pollutants in the office, can meet the requirements of long-term all-weather air cleaning in the office.