Glass bead polyurethane foam composite material and preparation method thereof
A technology of polyurethane foam and vitrified microbeads, which is applied in the field of composite materials and its preparation, can solve the problems of high cost of thermal insulation materials, difficulty in simultaneously improving flame retardancy and thermal insulation, and achieve low cost, improved thermal insulation performance, and low density Effect
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[0029] Specific embodiment 1: The vitrified microsphere polyurethane foam composite material of this embodiment is pretreated from 200 to 270 parts by mass and the particle size is 32 to 120 meshes of pretreated vitrified microspheres, 100 parts of polyurethane white material, 120 to 150 parts of After mixing polyurethane black material with 35-45 parts of solid flame retardant, it is prepared by microwave-assisted heating, foaming compounding and curing;
[0030] The polyurethane white material is composed of 45-55 parts by weight of polyether 4110, 3-10 parts of polyether 403, 35-45 parts of polyether 210, 1-2 parts of catalyst, 2-5 parts of water and 5-15 parts of parts of dichlorofluoroethane;
[0031] Described catalyst is tin type catalyst and / or amine type catalyst, described tin type catalyst is stannous octoate, dibutyltin dilaurate, described amine type catalyst is triethylenediamine, 2,2'- Dimorpholino diethyl ether, N,N-dimethylcyclohexylamine or diethanolamine; ...
Example Embodiment
[0036] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the vitrified microbead polyurethane foam composite material is pretreated by 250 parts by weight, the particle size is 32-100 mesh vitrified microbeads, 100 parts of polyurethane After mixing white material, 130 parts of polyurethane black material and 40 parts of solid flame retardant, it is prepared by microwave-assisted heating, foaming compounding and curing. Others are the same as the first embodiment.
Example Embodiment
[0037] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the polyurethane white material is composed of 50 parts of polyether 4110, 5 parts of polyether 403, 40 parts of polyether 210, 1.5 parts of catalyst, 3 parts of consisting of parts water and 10 parts dichloromonofluoroethane. Others are the same as the first embodiment.
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