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Solvent-free non-yellowing type polyurethane adhesive for sport field

A technology for polyurethane adhesives and sports venues, applied in the direction of polyurea/polyurethane adhesives, adhesive types, non-polymer adhesive additives, etc., can solve low reactivity, poor strength, adhesive storage Reduced stability and other issues, to achieve the effect of good storage stability, simple preparation method, and excellent mechanical properties

Active Publication Date: 2014-03-19
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low reactivity and poor strength of aliphatic isocyanate adhesives, the sites or products made with them often have a slow curing speed. First of all, they cannot meet the requirements of curing within 24 hours expected by users. Meet the requirements of the national standard tensile strength and elongation, so it is difficult to guarantee the service life of the site
By increasing the amount of catalyst, although the curing speed of the product can be increased to a certain extent, the storage stability of the adhesive will be greatly reduced, and the storage stability period of the product cannot be met.

Method used

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  • Solvent-free non-yellowing type polyurethane adhesive for sport field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The polyolefin polyol (with H 2 O 2 As the initiator, 1,2 propylene glycol is used as the solvent, butadiene undergoes free radical polymerization, the molecular weight is 1000, the functionality is 2) 25 grams, and the polyolefin polyol (with H 2 O 2 As the initiator, 1, 2 propylene glycol is used as the solvent, butadiene undergoes free radical polymerization, the molecular weight is 2000, the functionality is 2) 15 grams, and 30 grams of castor oil is added to the reactor at room temperature, and the temperature is raised to 97°C and stirred. The pressure is -0.095MPa for dehydration and degassing for 2.5 hours. When the water content is less than 0.05%, the temperature is reduced to 88°C and 20 grams of 1,4-cyclohexane diisocyanate and 5 grams of cyclohexane dimethylene diisocyanate are added. React at 85°C for 2.5 hours, add 1 g of 3,5-tert-butyl-4-hydroxyphenylpropionic acid isooctyl ester, bis(2,2,6,6-tetramethyl-4-piperidinyl)sebacic acid 3 grams of ester, 0.8 gra...

Embodiment 2

[0024] The polyolefin polyol (with H 2 O 2 As the initiator, 1, 2 propylene glycol is used as the solvent, butadiene undergoes free radical polymerization, the molecular weight is 1000, the functionality is 2) 30 grams, and 30 grams of castor oil is added to a three-necked flask at room temperature. The temperature is raised to 95°C and stirred. The pressure is -0.095MPa for dehydration and degassing for 3 hours. When the water content is less than 0.05%, the temperature is lowered to 90°C and 30 grams of 1,4-cyclohexane diisocyanate is added. The reaction is carried out at 80°C for 3 hours and 3,5-tert is added. 4 grams of isooctyl butyl-4-hydroxyphenylpropionate, 4 grams of bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, 2 grams of bismuth isooctanoate, cool to Bottling at 15°C.

[0025] When in use, the glue and TPU / EPDM particles are mixed in a ratio of 1:5.

Embodiment 3

[0027] The polyolefin polyol (with H 2 O 2 As the initiator, 1,2 propylene glycol is used as the solvent, butadiene undergoes free radical polymerization, the molecular weight is 1000, the functionality is 2) 35 grams, 25 grams of castor oil is added to a three-necked flask at room temperature, and the temperature is raised to 100 ℃ and stirred, ( The pressure is -0.095MPa) dehydration and degassing for 2 hours, when the water content is less than 0.05%, the temperature is lowered to 90℃, 30 grams of 1,4-cyclohexane diisocyanate and 5 grams of isophorone diisocyanate are added and reacted at 83℃ In 2.7 hours, add 3 grams of 3,5-tert-butyl-4-hydroxyphenylpropionic acid isooctyl ester and 1 grams of bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate , 0.65 grams of bismuth isooctanoate, 0.35 grams of N-ethylmorpholine, and bottle at 15℃.

[0028] When using, mix the glue with TPU / EPDM particles in a ratio of 1:7.

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Abstract

The invention belongs to the field of polyurethane adhesives, and relates to a solvent-free non-yellowing type polyurethane adhesive for a sport field and a preparation method thereof. The solvent-free non-yellowing type polyurethane adhesive is prepared from isocyanate, polyolefine polyalcohol, castor oil, an antioxidant, a light stabilizer and a catalyst in a mass ratio of (25-35):(30-40):(20-30):(1-4):(1-4):(1-2). The invention relates to the solvent-free non-yellowing type polyurethane adhesive for the sport field and the preparation method thereof. The solvent-free non-yellowing type polyurethane adhesive disclosed by the invention has the characteristics of odorlessness, no yellowing, environmental friendliness, moderation in curing speed, no deformation, good storage stability and excellent mechanical property.

Description

Technical field [0001] The invention belongs to the field of polyurethane adhesives, and relates to a solvent-free and non-yellowing polyurethane adhesive used in sports fields and a preparation method thereof. Background technique [0002] At present, with the development of economy and the improvement of people's consumption level, there are more and more sports and leisure venues in schools, communities, and parks, such as swimming pools, gymnasiums, and park jogging areas. Sports venues have also evolved from satisfying people's daily sports needs to high-end, personalized and high-comfort. For example, the bottom material of a swimming pool is generally ceramic tiles, which are often hard and smooth, especially after being immersed in water, a smooth water film is easily formed on the surface, which may easily cause the swimmer to slip when standing, which is potentially dangerous. Therefore, replacing traditional ceramic tiles with a soft, comfortable and high friction mat...

Claims

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Application Information

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IPC IPC(8): C09J175/14C09J11/06C08G18/75C08G18/69C08G18/67
Inventor 孙清峰李立强鞠伟坦王玉霞代金辉
Owner SHANDONG INOV POLYURETHANE
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