| Abstract:The fire-retardant air filter paper for internal-combustion engine was prepared by using phosphorus flame retardant, part of styrene-acrylic emulsion was replaced by melamine formaldehyde resin, and the role played by melamine formaldehyde resin was studied in this paper. The results showed that: when the emulsion was replaced by 15% melamine formaldehyde resin, the flame retardant properties was excellent when the retention rate of the flame retardant was 14%, 22% flame retardant was saved, while the mechanical properties of the filter paper would not reduced. |
