Polyurethane adhesive and plastic track prime material as well as preparation methods thereof

A technology of polyurethane adhesive and polyurethane prepolymer, applied in the direction of polyurea/polyurethane coatings, polyurea/polyurethane adhesives, adhesives, etc., can solve the problems of affecting human health and high free isocyanate content, and achieve adhesion Strong, low free isocyanic acid content, high mechanical strength effect

Active Publication Date: 2017-05-17
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the main purpose of the present invention is to provide a polyurethane adhesive and plastic runway bottom material and preparation method thereof, which is used to overcome the problem of high free isocyanate content in the existing plastic runway material and the problem of affecting human health

Method used

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  • Polyurethane adhesive and plastic track prime material as well as preparation methods thereof
  • Polyurethane adhesive and plastic track prime material as well as preparation methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Weigh 100 parts of polypropylene carbonate diol, add it into a glass reaction kettle with a vacuum device, vacuumize and dehydrate at 100°C for 2 hours, add 0.04 parts of phosphoric acid, 0.04 parts of stannous octoate, and carbodiimide modified bismuth 70 parts of phenylmethane diisocyanate (liquefied MDI), reacted at 80°C for 2 hours, cooled to 10°C, added 5 parts of KH540, and reacted for 1 hour to obtain an organosilane-modified polyurethane prepolymer.

[0034] Take 40 parts of the above prepolymer, 10 parts of plasticizer, 1 part of anti-aging agent, 1 part of ultraviolet absorber, 1 part of diluent, and 0.01 part of catalyst, and stir them evenly in a reaction kettle at room temperature to obtain polyurethane adhesive .

[0035] The polyurethane adhesive and black rubber particles are mixed in a hand mixer in a weight ratio of 1:8, then paved, and then compacted in a mold to obtain the bottom material of the plastic runway.

Embodiment 2

[0037] Weigh 100 parts of polypropylene carbonate diol, add it into a glass reactor with a vacuum device, vacuum dehydrate at 100°C for 2 hours, add 0.04 parts of phosphoric acid, 0.04 parts of stannous octoate, 70 parts of liquefied MDI, and heat at 80°C React for 2 hours, lower the temperature to 40° C., add 10 parts of KH550, and react for 1 hour to obtain an organosilane-modified polyurethane prepolymer.

[0038] Take 40 parts of the above-mentioned prepolymer, 8 parts of plasticizer, 0.5 part of antiaging agent, 0.5 part of ultraviolet absorber, 2 parts of diluent, and 0.01 part of catalyst, and stir them evenly in a reaction kettle at room temperature to obtain polyurethane adhesive .

[0039] The polyurethane adhesive and black rubber particles are mixed in a hand mixer at a weight ratio of 1:8, then paved, and then compacted in a mold to obtain the bottom material of the plastic runway.

Embodiment 3

[0041] Weigh 100 parts of polypropylene carbonate diol, add it into a glass reactor with a vacuum device, vacuum dehydrate at 100°C for 2 hours, add 0.01 part of phosphoric acid, 0.1 part of stannous octoate, 70 parts of liquefied MDI, and heat at 60°C React for 5 hours, lower the temperature to 40° C., add 15 parts of KH550, and react for 1 hour to obtain an organosilane-modified polyurethane prepolymer.

[0042] Take 30 parts of the above prepolymer, 5 parts of plasticizer, 0.5 part of anti-aging agent, 0.5 part of ultraviolet absorber, 3 parts of diluent, and 0.01 part of catalyst, and stir them evenly in a reaction kettle at room temperature to obtain polyurethane adhesive .

[0043] The polyurethane adhesive and black rubber particles are mixed in a hand mixer at a weight ratio of 1:8, then paved, and then compacted in a mold to obtain the bottom material of the plastic runway.

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Abstract

The invention belongs to the field of fine chemical engineering, and particularly relates to a polyurethane adhesive and a plastic track prime material as well as preparation methods thereof. The polyurethane adhesive and the plastic track prime material are mainly prepared from organosilane modified polyurethane prepolymer serving as a main raw material, are low in content of free hydrogen isocyanide, green and environment-friendly, have high mechanical strength and good product heat stability, do not blister after being formed, have strong adhesive property and can serve as ball park plastic materials with excellent performances. Poly (propylene carbonate) polyols used in the preparation process of the polyurethane prepolymer take carbon dioxide as a raw material and are low in cost, have important significance for environmental protection, energy conservation and emission reduction after scale production and can be widely applied to a lot of fields such as the production of traditional adhesives, sealants, coating and elastomers.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to a polyurethane adhesive and a plastic runway bottom material and a preparation method thereof. Background technique [0002] Plastic track is an indispensable and important facility in modern track and field venues. Compared with traditional soil track, it has good elasticity, anti-skid, wear resistance, shock absorption, easy site maintenance, bright colors, beautiful and tidy, etc. Advantages. In view of the above advantages, the plastic track was quickly adopted by various track and field venues soon after it came out. In recent years, some universities and middle schools have also been widely used. Among them, the plastic track is mainly composed of polyurethane, pigments, and additives. Polyurethane is a kind of polymer whose main chain contains -NHCOO- repeating structural unit, and is mainly polymerized by isocyanate and hydroxyl compound. Since polyurethane cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J11/06C09J11/08C09D175/04C09D7/12C08G18/44C08G18/83
Inventor 丁鹄岚冼文琪刘保华
Owner GUANGDONG UNIV OF TECH
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