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Polyurethane plastic runway adhesive and preparation method thereof

A technology of plastic track and adhesive is applied in the field of chemical adhesive to achieve the effect of improving strength and simple preparation method

Inactive Publication Date: 2015-09-09
GOOD CHEM SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are already MDI-based plastic runways, but there are solvents in use and construction.

Method used

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  • Polyurethane plastic runway adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Preparation of environment-friendly two-component polyurethane plastic runway adhesive:

[0021] (1) Preparation of component A;

[0022] In the reaction equipment equipped with stirrer, thermometer and reflux condenser, add 146.14g of adipic acid, 68.32g of ethylene glycol, 0.008g of catalyst antimony acetate, and 0.36g of heat stabilizer triphenyl phosphite to start stirring, and the temperature rises To 120 ~ 130 ℃, the adipic acid is completely dissolved. Nitrogen gas is kept at reflux for 1 hour to make the dibasic acid interact with the dibasic alcohol to form a small molecule polyester. The temperature is raised to 150°C for dehydration, and the temperature at the top of the fractionation head is controlled to 100-102°C. After the water is discharged, the temperature in the system is gradually raised to 240°C within 3-4 hours. The temperature rise is slow at first and then fast. Raise the temperature of the material to 240°C and keep it warm for 1 hour, start v...

Embodiment 2

[0028] Preparation of environment-friendly two-component polyurethane plastic runway adhesive:

[0029] (1) Preparation of component A;

[0030] In the reaction equipment that stirrer, thermometer, reflux condenser are housed, add adipic acid 146.14g, ethylene glycol 72.16g, catalyst antimony acetate 0.009g, thermal stabilizer triphenyl phosphite 0.38g start to stir, temperature rises To 120 ~ 130 ℃, the adipic acid is completely dissolved. Nitrogen gas is kept at reflux for 1 hour to make the dibasic acid interact with the dibasic alcohol to form a small molecule polyester. The temperature is raised to 150°C for dehydration, and the temperature at the top of the fractionation head is controlled to 100-102°C. After the water is discharged, the temperature in the system is gradually raised to 240°C within 3-4 hours, and the temperature rise is slow at first and then fast. Raise the temperature of the material to 240°C and keep it warm for 1 hour, start vacuum dehydration, let...

Embodiment 3

[0036] Preparation of environment-friendly two-component polyurethane plastic runway adhesive:

[0037] (1) Preparation of component A;

[0038] In the reaction equipment equipped with stirrer, thermometer and reflux condenser, add 73.07g of adipic acid, 94.11g of azelaic acid, 68.32g of ethylene glycol, 0.01g of catalyst antimony acetate, and 0.54g of heat stabilizer triphenyl phosphite g Start stirring, and the temperature rises to 120-130°C to completely dissolve the adipic acid. Nitrogen gas is kept at reflux for 1 hour to make the dibasic acid interact with the dibasic alcohol to form a small molecule polyester. The temperature is raised to 150°C for dehydration, and the temperature at the top of the fractionation head is controlled to 100-102°C. After the water is discharged, the temperature in the system is gradually raised to 240°C within 3-4 hours. The temperature rise is slow at first and then fast. Raise the temperature of the material to 240°C and keep it warm fo...

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Abstract

The invention discloses a polyurethane plastic runway adhesive and a preparation method thereof. The adhesive is characterized in that it includes a component A and a component B, the component A is an -NCO functional group containing polyurethane prepolymer obtained by subjecting diol and binary acid to esterification reaction to obtain specific polyester diol, and then polymerizing the specific polyester diol with polyether polyol, a chain extender and MDI; the component B is obtained by taking polyether polyol, small molecule diol, small molecule amine, a plasticizer, an antioxidant, a catalyst, and white carbon black as raw materials, conducting stirring and vacuum dehydration; the component A and component B are stirred evenly according to certain ratio, the mole ratio of -NCO in the component A to -OH in the component B is 0.97-0.99. The polyurethane plastic runway adhesive provided by the invention has high strength and excellent performance, and does not contain solvent.

Description

technical field [0001] The invention relates to the technical field of chemical adhesives, in particular to an environment-friendly polyurethane adhesive applied to plastic runways and a preparation method thereof. Background technique [0002] Traditional plastic runway products are all TDI type. Due to the high vapor pressure of TDI (about 1.33Pa at 20°C), it is seriously irritating to the human respiratory system. During the production and construction of plastic runway slurry, it is harmful to people. health has caused great harm. Moreover, harmful gases will be slowly released during the use of the plastic runway, which will affect people's health. As early as 1994, IST (International Sports Track Technology Association) put forward the suggestion of "not accepting the use of polyurethane system containing monomeric TDI components for sports tracks" on the issue of "using polyurethane resin to pave sports tracks". And the vapor pressure of MDI is low (about 1.33×10 at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C08G18/66C08G18/42C08G18/48C08G18/61
Inventor 刘传刚郑李华洪必贵许玉良曾广福
Owner GOOD CHEM SCI & TECH
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