Unlock instant, AI-driven research and patent intelligence for your innovation.

Waterborne environment-friendly polyurethane adhesive as well as preparation method and application thereof

A polyurethane adhesive, environmentally friendly technology, used in polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve the problems of weak water resistance, poor durability, easy hydrolysis, etc., to achieve good adhesion, Good adhesion and low NCO content

Active Publication Date: 2018-05-11
湖南盛亚体育实业有限公司
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the bonding strength of water-based adhesives is worse than that of solvent-based adhesives. In order to achieve effective bonding strength, polyester polyols are usually used to prepare water-based polyurethane adhesives, but water-based polyurethanes prepared from polyester polyols are usually used outdoors. , water resistance is not strong, in the case of heavy rain and high humidity, it is easy to hydrolyze and has poor durability

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Waterborne environment-friendly polyurethane adhesive as well as preparation method and application thereof
  • Waterborne environment-friendly polyurethane adhesive as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0049] The raw materials for the preparation of the water-based environment-friendly polyurethane adhesive of the present invention include 60 parts by weight of carbon dioxide copolymer polyol.

[0050] [Polyether polyol]

[0051] Polyether polyol refers to the reaction product of an initiator and at least one alkylene oxide such as ethylene oxide (EO), propylene oxide (PO), butylene oxide (BO), etc., or a combination thereof. Conventional polyether polyols are formed from at least one alkylene oxide, preferably ethylene oxide, propylene oxide, or combinations thereof, and have no molecular portion derived from vegetable or animal oils. The polyether polyols are prepared by methods known to those skilled in the art, for example by alkoxylation of suitable starter molecules, such methods generally involving the use of initiators such as water, ethylene glycol, or propylene glycol, glycerol, Sorbitol or a blend thereof is reacted with an alkylene oxide in the presence of a cat...

Embodiment 1

[0150] A water-based environmentally friendly polyurethane adhesive: in parts by weight, after dehydrating 60 parts of polypropylene carbonate diol with a molecular weight of 1000g / mol, add 30 parts of polyoxypropylene glycol, 25 parts of castor oil, six ethylene glycol Mix 10 parts of methyl diisocyanate, 60 parts of isophorone diisocyanate, 6 parts of sodium ethylenediaminoethanesulfonate and 1 part of stannous octoate, heat up to 70°C, and react for 4 hours to obtain an adhesive prepolymer; Cool down to 20°C, add 10 parts by weight of acetone to reduce the viscosity, then add 1 part of ethylenediamine and 300 parts of deionized water for emulsification reaction for 5 hours to obtain a water-based environmentally friendly polyurethane adhesive.

[0151] The water-based environmentally friendly polyurethane adhesive and black rubber particles are mixed in a mixer at a weight ratio of 1:8, then paved, and then compacted in a mold to obtain a 1cm-thick plastic runway bottom laye...

Embodiment 2

[0153] A water-based environmentally friendly polyurethane adhesive: in parts by weight, after dehydrating 60 parts of polypropylene carbonate diol with a molecular weight of 1000g / mol, add 50 parts of polyoxypropylene triol, 15 parts of castor oil, six ethylene glycol Mix 20 parts of methyl diisocyanate, 40 parts of isophorone diisocyanate, 20 parts of 1,4-butanediol-2-sodium sulfonate and 0.01 part of stannous laurate, heat up to 85°C, and react for 1 hour to obtain gum Adhesive prepolymer: lower the temperature to 40°C, add 10 parts by weight of acetone to reduce the viscosity, then add 10 parts of trimethylhexamethylenediamine and 200 parts of deionized water to emulsify for 2 hours to obtain a water-based environmentally friendly polyurethane adhesive.

[0154] The water-based environmentally friendly polyurethane adhesive and black rubber particles are mixed in a mixer at a weight ratio of 1:8, then paved, and then compacted in a mold to obtain a 1cm-thick plastic runway ...

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
Login to View More

PUM

PropertyMeasurementUnit
hydroxyl valueaaaaaaaaaa
thicknessaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a waterborne environment-friendly polyurethane adhesive as well as a preparation method and application thereof and relates to the technical field of high molecular pre-laying material. The waterborne environment-friendly polyurethane adhesive is mainly prepared from the following raw materials in parts by mass: 60 parts of carbon dioxide copolymer polyol, 30 to 50 parts ofpolyether polyol, 15 to 25 parts of castor oil, 10 to 20 parts of aliphatic diisocyanate, 40 to 60 parts of cycloaliphatic diisocyanate, 6 to 20 parts of a chain extender, 1 to 10 parts of a chain extending crosslinking agent, 0.01 to 1 part of a catalyst and 200 to 300 parts of water. By adopting the waterborne environment-friendly polyurethane adhesive provided by the invention, the technical problems of an existing solvent type adhesive that the toxicity is great, the sticking strength of the waterborne adhesive is poor and the water resistance is not strong are alleviated; the adhesive provided by the invention has the advantages of no toxicity, safety and environment protection; the adhesion and adhesive force are good, and the strength is high; an adhesive film has excellent wearingresistance and water resistance; a bottom layer of a plastic runway prepared by utilizing the adhesive has good wearing resistance, high strength, a low water absorption rate and good water resistance.

Description

technical field [0001] The invention relates to the technical field of polymer pre-paved materials, in particular to a water-based environmentally friendly polyurethane adhesive, its preparation method and application. Background technique [0002] In recent years, many kindergartens, primary and secondary schools across the country have had poisoned runway incidents one after another, which has aroused people's attention to the runway materials. Most runway materials are cast-in-situ polyether polyurethane. Generally, polyether polyurethane has low strength and poor wear resistance. Generally, a large amount of filler is added. Due to the addition of filler, the viscosity of the system increases rapidly. In order to further reduce the viscosity, a large amount is added. Advanced plasticizers such as short-chain chlorinated paraffins and solvents such as xylene, butyl acetate, etc., and then mixed with EPDM particles to prepare polyurethane stadium tracks. [0003] The curr...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C08G18/66C08G18/36C08G18/40C08G18/42C08G18/44C08G18/48C08G18/12C08G18/32
CPCC08G18/12C08G18/36C08G18/4018C08G18/4238C08G18/44C08G18/4825C08G18/4829C08G18/4854C08G18/6629C08G2350/00C09J175/04C08G18/3228C08G18/3234
Inventor 郭合平郭瑞李保琼易文
Owner 湖南盛亚体育实业有限公司