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

Inactive Publication Date: 2002-10-30
孔克健
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are several main problems in this formula system: 1), due to the main mechanical properties of the product, such as the elongation at break is only 105%, it cannot adapt to the foundation fracture, bulge, and subsidence of sports venues due to ground freezing, water immersion, etc. The stress generated by such deformation causes the fracture of the polyurethane paving material; 2), the flame retardant performance of the product is low, in fact, the flame retardant performance of most domestic products has not reached the first-class flame retardant standard; 3), in order to Anti-aging, anti-mildew, adding a variety of expensive anti-ultraviolet agents, antioxidants and anti-fungal agents, which greatly increases the cost, but the amount added is far from the actual demand, and the effect is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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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PUM

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Abstract

A composite polyurethane elastomer / nano laminated material for stadium is prepared through preparing organic nano laminated material from montmorillonite and hydrotalcite, vacuum dewatering of dihydoxy polyoxyacrylether, mixing with toluene diisocyanate to obtain component A, compounding the organic nano laminated material with dihydroxy or trihydroxy polyoxyacrylether, mixing with 3,3'-bichloro-4,4'-diaminodiphenyl methane, pigment, filler and plasticizer to obtain component B, proportionally mixing components A with B, and laminating polymerization reaction u nder catalyst of zinc naphthenate. Its advantage is high flame-retording and mechanical performance.

Description

technical field [0001] The invention belongs to the field of polymer composite materials. In particular, it relates to a polyurethane elastomer / layered nanocomposite material and a preparation method thereof, which are mainly used for laying sports grounds. Background technique [0002] Regarding the laying of sports venues, in 1961, the American 3M Company first laid a horse racing track with polyurethane materials; in the 19th Olympic Games in 1968, the track and field track was officially laid with polyurethane paving materials produced by 3M Company (called "Tartan") Runway), has been internationally recognized as the best playing field, and has been widely used. In the 1980s, track and field tracks paved with polyurethane also appeared in our country. For more than 20 years, the formula system similar to that adopted by the Chinese invention patent application publication number CN1033639A has been used, namely: the so-called TDI (toluene diisocyanate) (component A) a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04E01C13/06
Inventor 孔克健
Owner 孔克健
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