Nano-environment protection type polyurethane paving material for athletic ground and manufacture method thereof
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A sports field, environmentally friendly technology, used in pavements, buildings, roads, etc., can solve skin and eye damage, bronchitis, liver disease and other problems
Inactive Publication Date: 2008-08-20
TIANJIN JINGHONG SPORT FACILITIES TECH
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Problems solved by technology
[0003] But for a long time, its raw material contains toluene diisocyanate (TDI), and TDI and air can form an explosive mixture, which can be heated and decomposed to release toxic gas, which is easy to combine with protein, and inhalation of high concentration of TDI vapor can cause bronchitis, pneumonia and lung cancer. Edema; prolonged exposure can cause liver lesions, contact with liquid can cause permanent damage to skin and eyes
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Embodiment 1
[0058] 1) Preparation process of component A:
[0059] 1) After accurately measuring 40% of qualified polyether diol and 25% of polyether triol (with an error of plus or minus 1%), add them to the reactor;
[0060] 2) After the feeding is completed, start stirring, raise the temperature to 90°C±5°C, turn on the vacuum pump for dehydration for 1 hour, and the vacuum degree of dehydration should reach more than 700 mm Hg. After dehydration is completed, stop pumping, cool down to below 40°C, take samples for testing, and the moisture content should be less than 0.05%. Otherwise, continue to evacuate and dehydrate until the moisture content is qualified;
[0061] 3) 30% qualified 4,4, diphenylmethane diisocyanate (MDI-100) and 5% nano-magnesium carbonate, the error is not more than plus or minus 1%, heat preservation for 30 minutes, and observe and record the temperature change. Then slowly raise the temperature at a rate of 1--2°C per minute, while maintaining stirring, the st...
Embodiment 2
[0072] 1) Preparation process of component A:
[0073] 1) After accurately measuring 40% of qualified polyether diol and 25% of polyether triol (with an error of plus or minus 1%), add them to the reactor;
[0074] 2) After the feeding is completed, start stirring, raise the temperature to 90°C±5°C, turn on the vacuum pump for dehydration for 1 hour, and the vacuum degree of dehydration should reach more than 700 mm Hg. After dehydration is completed, stop pumping, cool down to below 40°C, take samples for testing, and the moisture content should be less than 0.05%. Otherwise, continue to evacuate and dehydrate until the moisture content is qualified;
[0075] 3) 30% qualified 4,4, diphenylmethane diisocyanate (MDI-100) and 5% nano-magnesium carbonate, the error is not more than plus or minus 1%, heat preservation for 30 minutes, and observe and record the temperature change. Then slowly increase the temperature at a rate of 1--2°C per minute, while maintaining stirring, the...
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Abstract
The invention discloses a sports ground-used nanometer environmental-friendly type polyurethane paving material and a preparation thereof, and the paving material consists of A component, B component, black rubber particles and a catalyst; the A component is: diisocyanate: 20 to 50 percent; polyether polyol: 40 to 70 percent and a nanometer additive: 5 to 25 percent; the B component is: polyether polyol : 20 to 40 percent ; processing aid: 5 to 25 percent; nanometer additive: 0.1 to 5 percent; fillings: 40 to 70 percent, pigments: 0.1 to 2.0 percent; ultraviolet absorbent: 0.01 to 0.1 percent and antiaging agent: 0.01 to 0.1 percent, wherein, the weight proportion of the A component and the B component is 1:3 to 5, the black rubber particles account for 20 percent in the sum weight of the A composition and the B component, the catalyst accounts for 0.15 percent in the sum weight of the A composition and the B component. The preparation method is that, the A component and the B component are mixed according to the weight proportion of 1:3 to 5 of the A component and the B component, then the black rubber particles, the amount of which accounts for 25 percent in the sum weight of the A composition and the B composition are added, and after uniform mixing, zinc iso-octoate, the amount of which accounts for 0.15 percent in the sum weight of the A composition and the B composition are added, and then the track and field runway paving-used polyurethane elastomers are prepared after stirring and polymerization and solidification. The sports ground-used nanometer environment-friendly type polyurethane paving material takes low poisonous and high activity MDI as raw material and leads the environment-friendly property of the paving materials of plastic sports runways and sports playing courts to reach the international standard, and improve various physical index of products obviously.
Description
technical field [0001] The invention relates to a pavement material for sports fields. In particular, it relates to an environment-friendly nano-environment-friendly polyurethane pavement material for sports fields that does not contain highly toxic toluene diisocyanate, uses nano-materials to modify the properties of polyurethane elastomers, and uses low-toxicity and high-activity MDI as raw materials and its preparation method . Background technique [0002] Polyurethane elastomers used in track and field paving materials of modern sports grounds, basketball, volleyball and other competition venues have excellent weather resistance, pressure resistance, impact resistance, suitable elasticity, excellent sports safety performance, non-slip, beautiful colors, And it is not affected by climatic conditions and other advantages, so it is very popular among the public. [0003] But for a long time, its raw material contains toluene diisocyanate (TDI), and TDI and air can form a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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