| abstract |
The invention relates to the field of fireproof materials, in particular to a fireproof material for a cable trench, a preparation method and a construction method thereof, comprising the following raw materials in parts by weight: component A: 80-160 parts of polyether polyol, 30 parts of polyester polyol , 10 parts of halogen-free flame retardant polyester polyol, 30-50 parts of microcapsule flame retardant and smoke suppressant, 10-20 parts of intumescent flame retardant, 5-10 parts of modified nanocomposite particles, 3-6 parts of composition Film agent, 8-15 parts of pigments and fillers, 8-15 parts of n-pentane, 1-6 parts of catalyst, 4-8 parts of foam stabilizer, 1-4 parts of water; component B: 130-220 parts of polymethylene Polyphenyl polyisocyanates. The fireproof sealing material of the present invention has good properties such as fireproof and flame retardant ability, adhesion, weather resistance, etc., and does not contain halogen-based foaming agents and will not pollute the environment. |