The invention relates to a composite
flame retardant material of hydrogel
unsaturated polyester resin and the preparation method. The preparation materials comprise
unsaturated polyester resin 100, emulsifier 0-20, solidifying agent 0.5-3,
promoter 0.05-1.5, initiator 0.02-2, cross-bonding agent 0.05-5, water-soluble
monomer 1-50, and water 50 -100 in
mass percent. The preparation method comprises the steps of dissolving the cross-bonding in the solution of
water soluble monomer and inputting
nitrogen and avoiding
oxygen for 30 minutes, then filtering; dissolving the initiator and the emulsifier in the filtered solution; emulsification of hydrogel
unsaturated polyester resin; adding solidifying agent and
promoter to the unsaturated
polyester resin
emulsion to solidify. The composite
flame retardant material of hydrogel unsaturated
polyester resin has the advantages of high and stable preserving water rate, good
flame retardant capability and dimensional stability, improving the fracture elongation and
toughness, uneasy
cracking, good mechanical properties, and the surface is uneasy
cracking when heated or combusted. The material can be widely used in artificial timber and
tar filtering, foam,
thermal insulation for buildings, decoration,
glass fiber reinforced plastic and other materials.