Polyurethane elastomer/laminated nano composition for stadium and its preparing process
A technology of polyurethane elastomer and layered nanometer, which is applied in polyurea/polyurethane coatings, coatings, construction, etc., can solve the problems of low flame retardancy, increased cost, and insufficient addition amount, and achieve high mechanical properties, Enhanced elongation at break and long service life
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Embodiment 1
[0037] The present invention will be further described below by way of examples. (Hereafter, the polyurethane elastomer / layered nanocomposite material is simply referred to as "glue"). Embodiment 1 Preparation of glue (1) A component for track and field track laying
[0038] Add 442kg of dihydroxypolyoxypropylene ether (N220, molecular weight 2000,) and 315kg of dihydroxypolyoxypropylene ether (N210, molecular weight 1000,) into the reactor after weighing and measuring, stir at a temperature of 80-90°C, and Dehydrate under 0.002MPa vacuum for 2.5 hours, fill with nitrogen and return to normal pressure, cool to 45°C, add 243 kg of toluene diisocyanate (TDI) under nitrogen protection, react for 2.5 hours at 85-90°C under nitrogen protection, and cool to 50°C , sealed in barrels for later use. (2) Preparation of component B
[0039] 32kg of organic montmorillonite (OMMT) and 188kg of trihydroxypolyoxypropylene ether (N330, molecular weight 3000) were evenly stirred in a reacti...
Embodiment 2
[0040] A component and B component are measured and weighed according to 1:2.5, that is, after mixing 20Kg of component A and 50Kg of component B evenly, add 18.75Kg of black rubber particles (d~3mm), and then add total 4.2Kg of catalyzer zinc naphthenate gasoline solution (concentration 3%) of 6% of the glue weight is spread on the track and field foundation, automatic leveling, and the gel is solidified into glue. It can be used officially after 14 days of aging at outdoor temperature, and the performance is tested (see Table 1). Embodiment 2 Preparation of glue (1) A component for track and field track laying
[0041] Except using N220 418Kg, N210 287Kg, TDI 290Kg, all the other are identical with embodiment 1. (2) Preparation of component B
[0042] Except using OMMT 50Kg, N330 180Kg, iron oxide red 45Kg, chlorinated paraffin 360Kg, MOCA 60Kg, clay 305Kg, all the other are identical with embodiment 1. (3) Laying glue for track and field track on site
[0043] A compone...
Embodiment 3
[0043] A component and B component are measured and weighed according to 1:4, that is, after mixing 16Kg of component A and 64Kg of component B, add 20Kg of black rubber particles (d ~ 3mm), and then add the total rubber weight under continuous stirring 7% catalyst zinc naphthenate gasoline solution (concentration 3%) 5.6Kg, then spread on the track and field foundation, self-leveling, gel curing into gel. It can be used officially after 14 days of aging at outdoor temperature, and the performance is tested (see Table 1). Example 3 Preparation of glue (1) component A for track and field track laying
[0044] Except using TDI 296Kg, all the other are identical with embodiment 2. (2) Preparation of component B
[0045] Except that 50Kg of organic hydrotalcite (OLDHs) was used instead of 32kg of organic montmorillonite (OMMT), the others were the same as in Example 2. (3) Laying glue for track and field track on site
[0046] Same as Example 2. Example 4 Preparation of glue ...
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