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A modified water-based polyurethane adhesive for bonding intelligent audio mesh and its preparation method and use method

A technology of water-based polyurethane and intelligent audio, which is applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve problems such as difficulty in applying glue, low bonding strength, and poor heat resistance, and achieve Improve body strength and flexibility, improve initial adhesion and bonding strength, and enhance the effect of initial adhesion and bonding strength

Active Publication Date: 2020-09-08
SUZHOU JINQIANG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commercialized pressure-sensitive adhesive has good flexibility, but its bonding strength is not high, and its heat resistance is not good. After a long time, the mesh is easy to shrink, deform and wrinkle, which will affect the appearance of the speaker; the reactive polyurethane hot-melt adhesive has good flexibility, The adhesive strength is high, but it is difficult to apply glue due to the large area of ​​the mesh cloth. At the same time, the higher heating temperature will cause the deformation of the mesh cloth and the change of the surface structure, which will affect the appearance and limit the application. The solvent-based polyurethane adhesive has good flexibility, especially the two-component The adhesive strength is higher, but the solvent contained in it is not environmentally friendly, and its application is limited; water-based polyurethane adhesive is environmentally friendly, but many products on the market are not yet mature, with poor stability, low adhesive force, and moisture-heat aging resistance. Not good, it is difficult to meet the mesh bonding strength requirements

Method used

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  • A modified water-based polyurethane adhesive for bonding intelligent audio mesh and its preparation method and use method
  • A modified water-based polyurethane adhesive for bonding intelligent audio mesh and its preparation method and use method

Examples

Experimental program
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Effect test

Embodiment 1

[0089] A modified water-based polyurethane adhesive used for bonding intelligent audio mesh, consisting of a main agent and a curing agent;

[0090] The main ingredient contains the following components in parts by weight:

[0091] Adwel 1629 25 copies;

[0092] Adwel 1630B 25 parts;

[0093] 5 parts of diethylene glycol butyl ether;

[0094] 0.5 parts of 2-amino-2-methyl-1-propanol;

[0095] 15 parts of modified aqueous acrylate suspension;

[0096] Nano silver titanium 1 part;

[0097] Vesmody U905 8 parts;

[0098] 20 parts of deionized water;

[0099] The curing agent is Aquolin161, and its dosage accounts for 4% of the main agent dosage;

[0100] Among them, the mass ratio of the water-based polyurethane dispersion to the modified water-based acrylate suspension is 3.33:1.

[0101] The preparation method of above-mentioned auxiliary agent is:

[0102] Add water-based polyurethane dispersions Adwel 1629 and Adwel 1630B into the mixer, and add diethylene glycol but...

Embodiment 2

[0130] A modified water-based polyurethane adhesive used for bonding intelligent audio mesh, consisting of a main agent and a curing agent;

[0131] The main ingredient contains the following components in parts by weight:

[0132] Adwel 1629 33 copies;

[0133] Dispercoll U54 30 parts;

[0134] 3.4 parts of propylene glycol propyl ether;

[0135] 0.4 parts of 2-amino-2-methyl-1-propanol;

[0136] 25 parts of modified aqueous acrylate suspensions;

[0137] Nano silver titanium 0.64 parts,

[0138] Vesmody U601 5.3 parts,

[0139] 13 parts of deionized water;

[0140] The curing agent is Aquolin278, and its dosage accounts for 6% of the main agent dosage;

[0141] Among them, the mass ratio of water-based polyurethane dispersion to modified water-based acrylate suspension is 2.52:1;

[0142]The preparation method of above-mentioned main agent is:

[0143] Add the water-based polyurethane dispersion Adwel 1629 and Dispercoll U54 into the mixer, and add propylene glycol ...

Embodiment 3

[0174] A modified water-based polyurethane adhesive used for bonding intelligent audio mesh, consisting of a main agent and a curing agent;

[0175] The main ingredient contains the following components in parts by weight:

[0176] Dispercoll U56 42 parts;

[0177] Dispercoll U53 35 parts;

[0178] 1.8 parts of diethylene glycol butyl ether;

[0179] 0.25 parts of 2-amino-2-methyl-1-propanol;

[0180] 20 parts of modified aqueous acrylate suspension;

[0181] 0.33 parts of nano-silver titanium;

[0182] Vesmody U605 3.1 parts;

[0183] 7 parts of deionized water;

[0184] The curing agent is Desmodur DN, and its dosage accounts for 9% of the main agent dosage;

[0185] Among them, the mass ratio of water-based polyurethane dispersion to modified water-based acrylate suspension is 3.85:1;

[0186] The preparation method of above-mentioned main agent is:

[0187] Add the water-based polyurethane dispersions Dispercoll U56 and Dispercoll U53 into the mixer, and add dieth...

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Abstract

The invention provides a modified water-based polyurethane adhesive used for bonding smart audio mesh and its preparation method and use method, wherein the modified water-based polyurethane adhesive used for bonding smart audio mesh consists of a main agent and Curing agent composition; the main agent contains the following components in parts by weight: 50-90 parts of water-based polyurethane dispersion, 0.2-5 parts of film-forming aid, 0.1-0.5 parts of stabilizer, 10-40 parts of modified water-based acrylate suspension 0.01-1 part of fungicide, 0.2-8 parts of thickener, 1-20 parts of deionized water; the curing agent is a water-based isocyanate curing agent, and its dosage accounts for 3-12% of the main agent. The modified water-based polyurethane adhesive used for bonding intelligent audio mesh provided by the invention is environmentally friendly, has good flexibility, high adhesion, meets the construction process, can ensure perfect appearance after lamination, and can ensure a good speaker Send and receive sound function.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a modified water-based polyurethane adhesive used for bonding intelligent audio mesh and its preparation method and use method. Background technique [0002] A smart speaker is a product of a speaker upgrade. It is a tool for home consumers to use voice to surf the Internet, such as ordering songs, shopping online, or understanding the weather forecast. It can also control smart home devices, such as opening curtains and setting refrigerators. temperature, let the water heater heat up in advance, etc. It brings great convenience to people's life, and at the same time adds more happiness to life, and it is a good assistant in life. When purchasing smart speaker products, people not only have requirements for functions, but also carefully select the appearance of the products. Manufacturers will also continue to iterate and improve according to the needs of product functions, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/04C09J151/08C09J11/04C09J11/06C09J11/08C08F283/00C08F283/10C08F220/18
CPCC08F283/008C08F283/105C08K2003/0806C08K2003/0881C08K2201/011C08L2205/025C08L2205/03C09J11/04C09J11/06C09J11/08C09J175/04
Inventor 何广洲曹建强
Owner SUZHOU JINQIANG NEW MATERIALS
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