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

Adhesive for 3D composite board mobile phone shell and preparation method thereof

A technology for composite boards and mobile phone shells, applied in the direction of adhesive types, cellulose adhesives, oil/fat/wax adhesives, etc., can solve problems such as low adhesion and poor wear resistance, and achieve improved attachment Effect of strong force, good adhesion, easy industrial application

Inactive Publication Date: 2020-05-01
王景泉
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the adhesive prepared by it is applied to PVC, ABS, PC, PMMA and other plastics, its cohesive force is low and its wear resistance is poor

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
  • Adhesive for 3D composite board mobile phone shell and preparation method thereof
  • Adhesive for 3D composite board mobile phone shell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of adhesive for 3D composite board (PMMA+PC) mobile phone shell, it comprises following components: polyurethane modified acrylic resin Kg; Epoxy soybean modified acrylate 11Kg; Modified sodium carboxymethyl cellulose 12Kg; Acrylic acid Ester monomer (pentaerythritol triacrylate) 40Kg; UV adhesion promoter (2-hydroxyethyl methacrylate phosphate) 5.2Kg; photoinitiator (2.4.6 (trimethylbenzoyl) diphenyl Phosphine oxide) 3.4Kg.

[0027] The preparation method of above-mentioned modified carboxymethyl cellulose sodium is as follows: in the there-necked flask with stirring device, add cellulose 10Kg and ethanol aqueous solution 16Kg after stirring and mixing, add sodium hydroxide aqueous solution 4Kg, catalyzer (tetrabutyl bromide Ammonium chloride) 0.1Kg and sodium silicate 0.6Kg reacted at 35°C for 1.5 hours; then heated to 60°C, added 9Kg of sodium monochloroacetate to react for 2.5 hours, neutralized with hydrochloric acid, washed with ethanol several times, and t...

Embodiment 2

[0030] A kind of adhesive for 3D composite board (PMMA+PC) mobile phone case, it comprises following components: polyurethane modified acrylic resin 34Kg; Epoxy soybean modified acrylate 14.5Kg; Modified sodium carboxymethyl cellulose 13.8Kg ; Acrylate monomer (trimethylolpropane triacrylate) 48Kg; UV adhesion promoter (2-hydroxyethyl methacrylate phosphate) 2.2Kg; UV adhesion promoter (2-hydroxyethyl methyl methacrylate) Acrylic acid ester phosphate) 4.2Kg; Photoinitiator (2-hydroxyl-2-methyl-1-phenyl-1-acetone) 2.8Kg; Photoinitiator (1-hydroxyl-cyclohexyl phenone) 1.4Kg.

[0031] The preparation method of the above-mentioned modified sodium carboxymethyl cellulose is as follows: in a three-necked flask with a stirring device, add 10Kg of cellulose and 20Kg of ethanol aqueous solution and stir and mix evenly, then add 5.5Kg of aqueous sodium hydroxide solution, catalyst (tetrabutyl Ammonium bromide) 0.2Kg and sodium silicate 0.8Kg were reacted at 40°C for 1.5 hours; then the ...

Embodiment 3

[0034] A kind of adhesive for 3D composite board (PMMA+PC) mobile phone case, it comprises following components: polyurethane modified acrylic resin 41Kg; Epoxy soybean modified acrylate 18.5Kg; Modified sodium carboxymethyl cellulose 16.8Kg ; Acrylate monomer (ethoxylated trimethylolpropane triacrylate) 38Kg; UV adhesion promoter (2-hydroxyethyl methacrylate phosphate) 5.6Kg; Photoinitiator (2-hydroxyl-2- Methyl-1-phenyl-1-propanone) 2.8Kg; photoinitiator (1-hydroxy-cyclohexyl phenone) 1.4Kg.

[0035] The preparation method of the above-mentioned modified sodium carboxymethyl cellulose is as follows: in a three-necked flask with a stirring device, add cellulose 10Kg and ethanol aqueous solution 21Kg and stir and mix evenly, add sodium hydroxide aqueous solution 6.5Kg, catalyst (tetrabutyl Ammonium bromide) 0.3Kg and sodium silicate 0.7Kg were reacted at 45°C for 1.5 hours; then the temperature was raised to 70°C, and 14Kg of sodium chloroacetate was added to react for 2.5 hou...

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

No PUM Login to View More

Abstract

The invention relates to an adhesive for a 3D composite board mobile phone shell and a preparation method thereof. The adhesive comprises the following components in parts by weight: 25 to 45 parts ofpolyurethane modified acrylic resin; 8 to 25 parts of epoxy soybean modified acrylate; 8 to 22 parts of modified sodium carboxymethyl cellulose; 35 to 65 parts of an acrylate monomer; 4 to 12 parts of a UV adhesion promoter; and 2 to 6 parts of a photoinitiator. The invention provides an adhesive for a 3D composite board mobile phone shell, wherein polyurethane modified acrylic resin and epoxy soybean modified acrylate are adopted as main resin, and then modified sodium carboxymethyl cellulose and phosphate acrylate are added as adhesion promoters, so that the adhesive has good adhesion, adhesion stress, high temperature resistance, wear resistance, glossiness and flexibility. The preparation method disclosed by the invention is simple and easy for industrial application.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to an adhesive for a 3D composite board mobile phone case and a preparation method thereof. Background technique [0002] Conventional UV adhesives have weak adhesive force, and the adhesive force is less than or equal to 15N / cm 2 , and need 300mj / cm 2 Only the above energy can be cured. When doing the adhesion pull test, it is easy to cause the embrittlement of the adhesive plastic, which cannot meet the requirements of strength, abrasion resistance, high temperature resistance, and heavy metal content of the adhesive used for mobile phone cases at the same time. The Chinese patent application number 201010252062.3 discloses a new type of UV-curable adhesive and its preparation method, which is prepared as follows: add polyurethane acrylate and monomer diluent to epoxy acrylic resin, stir at 50-55°C for 3- 4h, add a photoinitiator, accelerator and polymerization inh...

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): C09J175/14C09J191/00C09J101/28C09J11/06
CPCC08L2201/08C08L2203/20C08L2205/03C09J11/06C09J175/14C08L91/00C08L1/286C08K5/521
Inventor 王景泉
Owner 王景泉