LOW FORMALDEHYDE DISCHARGING PANEL AND PREPARATION METHOD THEREOF TO REDUCE DISCHARGING VELOCITY OF FORMALDEHYDE

摘要

PURPOSE: A low formaldehyde discharging panel and its preparation method are provided, to reduce the discharging velocity of formaldehyde for decreasing the discharging amount of formaldehyde. The panel is used as a sound ceiling panel. CONSTITUTION: A low formaldehyde discharging panel comprises a substrate(2) having a surface(4) and a back surface(6); and the cotton(8) which is adhered to the surface by a polymer adhesive comprising about 15-70 wt% a hydrophobic monomer which is copolymerizable and is not capable of being hydrolyzed and about 1-20 wt% of a formaldehyde scavenger. Preferably the cotton is formed from fiber glass. Preferably the fiber glass is bonded by poly(vinyl alcohol) and substantially contains no formaldehyde. Preferably the hydrophobic monomer is selected from the group consisting of ethylene, styrene, vinyl chloride, chlorinated/fluorinated vinylidene and their combinations.