The invention discloses a preparation method and application of a
flame-retardant
coating, and relates to the technical field of
flame-retardant coatings for special papers.The
flame-retardant
coating is prepared from, by weight, 80-85 parts of flame-retardant
pigment and 15-20 parts of heat insulation
pigment; the total weight of the components is set as M, the
adhesive accounts for 8-15% M, the co-
adhesive accounts for 7-9% M, the
thickening agent accounts for 1-2% M, the
lubricant accounts for 0.6-1% M, the
water repellent agent accounts for 0.5-0.8% M, the defoaming agent accounts for 0.1-0.2% M, and the dispersing agent accounts for 0.2-0.3% M. The flame-retardant
coating is designed and prepared, and the tipping base paper which can be carbonized at high temperature and does not burn is prepared by coating the surface of the tipping base paper. The preparation method is simple in process and high in
operability, the defects of a direct
papermaking method and an in-pulp addition method are overcome, the production efficiency and the
resource utilization rate are improved, and the production cost is reduced. The flame-retardant tipping base paper is prepared by a coating method instead of a traditional in-pulp addition method, and a functional coating is selected and designed, so that the coating process flow and parameters are determined. The flame-retardant coating prepared by the invention endows tipping base paper with excellent high-temperature
carbonization and non-
combustion performance, and the flame safety performance of the tipping base paper is effectively improved.