PUR adhesive for glass cover plate and middle frame and preparation method of PUR adhesive

A glass cover, adhesive technology, applied in the directions of adhesives, adhesive additives, adhesive types, etc., can solve the problems of limited application and low mechanical properties, and achieve good fluidity, good compatibility, and impact resistance. and good aging resistance

Inactive Publication Date: 2021-08-10
XIAMEN WELDTONE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the low mechanical properties of aliphatic and aliphatic-aromatic polycarbonates limit their application in engineering plastics

Method used

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  • PUR adhesive for glass cover plate and middle frame and preparation method of PUR adhesive
  • PUR adhesive for glass cover plate and middle frame and preparation method of PUR adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A glass cover and a PUR adhesive in the box, including the following formulation according to the mass component:

[0029] According to the mass component, 90 parts of the aliphatic polyester polyol, 80 polyurethane acrylate, 12 parts of polycaprolactone diols, 1.5 lysine diisocyanate, 12 parts of new glutaic acid, two 5 parts of hydroxymethyl proppropion, 6 parts of triethylamine, 2.5 dibutyl phthalate, 2.5 parts of dodecyl benzene sulfonate, 6 chain extenders; 1.5 silicone adhesive promoters, 0.1 parts of the catalyst, 31 polyether polyols, 22 parts of the polyester polyol, 10.5 parts of acrylic resin, 0.05 parts of an antioxidant, 0.02 parts of phosphoric acid, and 15 polyisocyanate and 7 tackifumes.

[0030] The polyisocyanate is disposed as a toluene diisocyanate, a diphenyl methane diisocyanate, a multi-methylene polyphenylene polyisocyanate, a hexamethylene diisocyanate trimer.

[0031] The present invention also provides a method for preparing a glass cover and a PU...

Embodiment 2

[0040] Unlike Example 1, according to the mass component, including 99 parts of the aliphatic polyester polyol, 100 parts of polyurethane acrylate, 18 parts of polycaprolactone diol, 2.5 lysine diisocyanate, 18 parts of neutral acid, 10 parts of dihydroxymethyl proppropion, 9 serviene, dibutyl phthalate, 4.5 parts of dodecylbenzene sulfonate, 1 chain extender; organic 2.5 parts of silicon adhesion promoter, 0.5 parts of catalyst, 39 polyether polyols, 28 parts of polyester polyol, 19.5 parts of acrylic resin, 0.2 parts of an antioxidant, 0.02 parts of phosphoric acid, polyisocyanate 19 parts and tackifune 19 share.

Embodiment 3

[0042] Unlike Example 1, according to the mass component, including 95 parts of the aliphatic polyester polyol, 90 parts of urethane acrylate, 15 parts of polycaprolactone diol, 2 lysine diisocyanate, 16 parts of neutral acid, 8 parts of dihydroxymethyl proppropion, 7 serviene, 4 parts of phthalate, 3.5 parts of dodecyl benzene sulfonate, 8 coplaced agents; organic 2 parts of silicon adhesion promoter, 0.3 copies of catalyst, 35 parts of polyether polyol, 25 parts of polyester polyol, 15 parts of acrylic resin, 0.1 parts of an antioxidant, 0.02 parts of phosphoric acid, 17 parts of polyisocyanate and tackifying resin 13 share.

[0043] In summary: By taking allowance polyester polyol, polyurethane acrylate, acrylic resin, antioxidant, polyisocyanate stirring with the organic silicone adhesion promoter and catalyst, etc., additionally equipped with a vacuum deproduction process; the polyurethane The adhesive and a variety of plastic and metal substrates have a good bonding effect. ...

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Abstract

The invention discloses a PUR adhesive for a glass cover plate and a middle frame, and the PUR adhesive comprises aliphatic polyester polyol, polyurethane acrylate, polycaprolactone diol and the like according to mass components, and the steps S1 to S6 are further included. The polyurethane adhesive has a good bonding effect with various plastics and metal substrates, the viscosity of the polyurethane adhesive is appropriate, the resin selected by the system is good in compatibility, uniform in adhesive output, free of gel, good in fluidity and rapid in curing, and the performance of the polyurethane adhesive is greatly improved compared with that of the polyurethane adhesive sold in the market at present. The adhesive can meet the harsh requirements in the high-end manufacturing fields such as electronic equipment part bonding, has good melt viscosity and rapid curing characteristics, and can meet the requirements for rapid positioning and high bonding strength in the manufacturing fields such as mobile phones and other electronic consumer products; and in addition, particularly for polycarbonate and ink glass of mobile phone screen components, the polyurethane adhesive has good cohesiveness, impact resistance and aging resistance as a screen bonding adhesive.

Description

Technical field [0001] The present invention belongs to the technical field of glue technology for mobile phone, and more particularly to a glass cover and a PUR adhesion in the frame. Meanwhile, the invention also relates to a glass cover plate and a PUR adhesive and a preparation method thereof thereof. Background technique [0002] With the rapid growth and development of IT technology, the rise of Internet services, smartphones are one of the most rapid development of electronic products in recent years; in which screen assembly is the most important link in the production of mobile phone, which will affect mobile phone products. Final reliability. Most manufacturers in the industry use polyurethane reactive hot melt adhesive (PUR) on screen assembly. [0003] Polycarbonate (PC) is a high molecular polymer containing a carbonate group in a molecular chain, which can be divided into various types such as aliphatic, aromatic, aliphatic-aromatic. The mechanical properties of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J175/14C09J11/06C09J11/08
CPCC09J175/04C09J11/06C09J11/08C08L2205/03C08L2205/035C08L2205/02C08L75/14C08L45/00C08L93/04C08K5/12C08K5/42
Inventor 曹阳宋亮赵凤艳魏丹丹何晓佳许逊福
Owner XIAMEN WELDTONE TECH CO LTD
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