Modified polyurethane material, exterior-wall decorative energy-saving plate and preparation method thereof
A polyurethane material and exterior wall decoration technology, which is applied in construction, building structure, covering/lining, etc., can solve the problems of poor decoration effect, complicated construction, and heavy quality of decorative insulation boards, and achieve good energy-saving insulation effects and decorative Good effect, light weight effect
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Embodiment 1
[0034] Embodiment 1: A kind of modified polyurethane material, preferably it is made of the following raw materials by weight: 60 parts of aromatic polyester polyols; 55 parts of foaming agent (cyclopentane); foam stabilizer (polyether modified 0.3 parts of dibutyltin oxide; 12 parts of melamine; 20 parts of flame retardant (TCPP); Diamine) 55 parts.
[0035] The filler is one or a combination of glass microspheres, diatomaceous earth, calcium carbonate, vitrified microspheres, and wood chips.
[0036] Energy-saving panels for exterior wall decoration containing the above-mentioned modified polyurethane materials, such as figure 1 , figure 2 As shown; including the base layer 5, the decoration layer 1, the thermal insulation and flame-retardant layer 4 wrapped between the base layer 5 and the decoration layer 1, the base layer 5 and the decoration layer 1 are all made of the above-mentioned modified polyurethane material, The thermal insulation and flame-retardant layer is...
Embodiment 2
[0051] Example 2, the same as Example 1 will not be stated, the difference is: the reinforcement layer is a fishing net, and the components and parts by mass of the modified polyurethane are: 55 parts of aromatic polyester polyol: 45 parts of cyclopentane; 2 parts of polyether modified silicone; 0.2 part of dibutyltin oxide; 11 parts of melamine; 1 part of TCPP; 230 parts of methane diisocyanate; 50 parts of triethylene diamine.
Embodiment 3
[0052] Example 3, the same as Example 1 will not be stated, the difference is: the reinforcement layer is a reed mat or a bamboo net, and the components and parts by mass of the modified polyurethane are: aromatic polyester 65 parts of polyol: 65 parts of cyclopentane; 4 parts of polyether modified silicone; 0.4 parts of dibutyltin oxide; 13 parts of TCPP; 25 parts of flame retardant; 160 parts of microbeads or sawdust; 250 parts of methane diisocyanate; 60 parts of triethylene diamine.
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