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Plastic sizing agent for silane-modified single component wet cured polyurethane playing court and preparation method thereof

A silane-modified, one-component technology, which is applied in construction, roads, pavement, etc., can solve the problems of time-consuming, high environmental temperature and humidity requirements, and increased construction costs, and achieves convenient use, low environmental moisture requirements, Strong adhesive effect

Active Publication Date: 2012-07-25
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]Traditional two-component polyurethane slurry needs to be prepared and applied at any time. The storage time should not be too long. It is inevitable that there will be errors in mixing and measuring beforehand, and the requirements for ambient temperature and humidity are relatively high during construction.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In a 500ml three-necked flask equipped with a thermometer, a reflux condenser, and stirring, add 95 grams of polyether polyol A (Mn=4000, polyoxypropylene diol with butanediol as an initiator), polyether polyol B (Mn=400, polyoxypropylene triol with glycerin as the initiator) 5 grams, DOP (Qilu plasticizer) 40 grams, put into the three-necked bottle at room temperature, stir at 80°C-100°C (speed 400r / min), vacuumize (vacuum degree not less than 0.09MPa) dehydration and degassing until the moisture reaches below 0.03%, cool down to 10-40°C and add 28 grams of pure MDI (diphenylmethane-4,4'-diisocyanate) , add 0.02 grams of butyl tin dilaurate, react for 1-2.5 hours under the condition of 70-90 degrees, then add 30 grams of xylene, continue heating and reacting for 1 hour, and the mass content of isocyanate is 2.9%±0.2 %, lower the temperature to 60-70 degrees, then add 4 grams each of A-1100 and A-1170, add 0.04 grams of phosphoric acid, keep the temperature at 70 ° C ...

Embodiment 2

[0030] In a 500ml three-necked flask equipped with a thermometer, a reflux condenser, and stirring, add 95 grams of polyether polyol (Mn=6000, polyoxypropylene glycol with butanediol as an initiator), polyether polyol ( Mn=600, 5 grams of polyoxypropylene triol with glycerin as the initiator, and 15 grams of DOP (Qilu plasticizer), put them into a three-necked bottle at room temperature, and stir at 80°C-100°C (speed 400r / min), vacuumize (vacuum degree not less than 0.09MPa) to dehydrate and degas until the water content reaches below 0.03%, cool down to 10-40°C, add 18 grams of pure MDI (diphenylmethane-4,4'-diisocyanate), add 0.02 grams of butyl tin dilaurate, react for 1-2.5 hours under the condition of 70-90 degrees, then add 50 grams of xylene, continue heating and reacting for 1 hour, until the content of isocyanate is 1.3%±0.2%, cool down To 60-70 degrees, add 4 grams of A-1100 and A-1170 each, add 0.04 grams of phosphoric acid, keep the temperature at 70 ° C for 1 h...

Embodiment 3

[0032] In a 500ml three-necked flask equipped with a thermometer, a reflux condenser, and stirring, add 95 grams of polyether polyol (Mn=8000, polyoxypropylene glycol with butanediol as an initiator), polyether polyol ( Mn=300, 5 grams of polyoxypropylene triol with glycerin as the initiator, and 25 grams of DOP (Qilu plasticizer), put them into a three-necked bottle at room temperature, and stir at 80°C-100°C (speed 200r / min), vacuumize (vacuum degree not less than 0.09MPa) to dehydrate and degas until the water content reaches below 0.03%, cool down to 10-40°C, add 23 grams of pure MDI (diphenylmethane-4,4'-diisocyanate), add 0.02 grams of butyltin dilaurate, react for 1-2.5 hours under the condition of 70-90 degrees, then add 30 grams of xylene, continue heating and reacting for 1 hour, until the content of isocyanate is 2.28%±0.2%, cool down To 60-70 degrees, add 4 grams of A-1100 and A-1170 each, add 0.04 grams of phosphoric acid, keep the temperature at 70 ° C for 1 h...

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Abstract

The invention relates to plastic sizing agent for a silane-modified single component wet cured polyurethane playing court; the plastic sizing agent comprises 7 to 11% of isocyanate, 25 to 40% of polyether polyol A, 1 to 3% of polyether polyol B, 10 to 20% of dissolvant, 20 to 40% of solid filler, 5 to 25% of plasticizer, 0.1 to 5% of silane coupling agent, 0.4 to 2% of pigment, 0.1 to 2% of anti-aging agent, 0.1 to 2% of ultraviolet absorbent, 0.1 to 1% of water, 0.001 to 0.1% of catalyst and 0.001 to 0.1% of polymerization inhibitor. The plastic sizing agent for a silane-modified single component wet cured polyurethane playing court is suitable for basketball courts and indoor venues, is convenient to use, does not need to be blended, and has stronger cohesive force with bottom foundations and low requirements on environment moisture; and after the plastic sizing agent is modified by the silane coupling agent, all indexes of the plastic sizing agent are superior to national standard.

Description

technical field [0001] The invention relates to the preparation and application method of a new type of silane-modified polyurethane plastic slurry. Background technique [0002] Traditional two-component polyurethane slurry needs to be prepared and applied at any time, and the storage time should not be too long. Mixing and metering take man-hours and increase the construction cost. Mistakes are inevitable when mixing and metering before use, and the construction is harmful to the environment. The temperature and humidity requirements are relatively high. Compared with the traditional two-component polyurethane slurry, the one-component silane-modified moisture-curing polyurethane slurry is easy to use, does not need to be mixed, greatly reduces the construction time and construction cost, and reduces the influence of human factors on the quality of the project, without stoichiometric , no need to add cross-linking agent, it can be cured by using air or moisture on the sur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/08C08K13/02C08G18/83C08G18/48E01C13/06
Inventor 孙清峰曲策鞠伟坦贾雪芹
Owner SHANDONG INOV POLYURETHANE
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