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Preparation method of adhesive plastering piece with rapid solidification and easy storage

A technology of rapid curing and lamination, applied in the field of electronic adhesives, to achieve the effect of small viscosity changes

Inactive Publication Date: 2018-01-05
樊之雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many types of film adhesives on the market, all of which cannot meet the above requirements, and more or less have deficiencies and shortcomings.

Method used

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  • Preparation method of adhesive plastering piece with rapid solidification and easy storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for preparing a fast-curing and easy-to-storage film, comprising the following steps: (1) Weighing the following components by weight: 40 parts of epoxy resin, N-2-methylimidazole-N'-(P-cyanophenyl ) 8 parts of urea, 0.5 parts of dicyandiamide, 0.5 parts of aminated lignin, 0.5 parts of benzyl dimethylamine, 2.5 parts of ethylene glycol diglycidyl ether, 0.6 parts of 1,4-butanediol glycidyl ether, pentaerythritol 5 parts of glycidyl ether, 8 parts of mercaptan end-group liquid nitrile rubber, 0.5 part of nano-calcium carbonate, 0.1 part of polyethylene wax, and 0.1 part of pigment; (2) Mix N-2-methylimidazole with a planetary power mixer -N'-(P-cyanophenyl)urea, dicyandiamide, aminated lignin and epoxy resin are mixed, and ground twice by three-roller machine to obtain a mixed paste; (3) Add Benzyldimethylamine, ethylene glycol diglycidyl ether, 1,4-butanediol glycidyl ether, pentaerythritol glycidyl ether, polyethylene wax, control the temperature at 75°C, sti...

Embodiment 2

[0017] A method for preparing a fast-curing and easy-to-storage film, comprising the following steps: (1) Weighing the following components by weight: 65 parts of epoxy resin, N-2-methylimidazole-N'-(P-cyanophenyl ) 2 parts of urea, 6 parts of dicyandiamide, 6 parts of aminated lignin, 5 parts of benzyl dimethylamine, 7 parts of ethylene glycol diglycidyl ether, 5 parts of 1,4-butanediol glycidyl ether, pentaerythritol 2 parts of glycidyl ether, 1 part of liquid nitrile rubber with mercaptan end group, 6 parts of nano-calcium carbonate, 5 parts of polyethylene wax, and 1 part of pigment; (2) Mix N-2-methylimidazole in a planetary power mixer -N′-(P-cyanophenyl) urea, dicyandiamide, aminated lignin and epoxy resin are mixed, and ground by three-roll machine for 5 times to obtain a mixed paste; (3) Add Benzyldimethylamine, ethylene glycol diglycidyl ether, 1,4-butanediol glycidyl ether, pentaerythritol glycidyl ether, polyethylene wax, control the temperature at 90°C, stir until...

Embodiment 3

[0019] A method for preparing a fast-curing and easy-to-storage film, comprising the following steps: (1) Weighing the following components by weight: 45 parts of epoxy resin, N-2-methylimidazole-N'-(P-cyanophenyl ) 4 parts of urea, 4 parts of dicyandiamide, 2.5 parts of aminated lignin, 2.5 parts of benzyl dimethylamine, 4.5 parts of ethylene glycol diglycidyl ether, 4.5 parts of 1,4-butanediol glycidyl ether, pentaerythritol 2.8 parts of glycidyl ether, 3 parts of liquid nitrile rubber with mercaptan end groups, 4.8 parts of nano-calcium carbonate, 1.5 parts of polyethylene wax, and 0.3 parts of pigment; (2) Mix N-2-methylimidazole with a planetary power mixer -N'-(P-cyanophenyl) urea, dicyandiamide, aminated lignin and epoxy resin are mixed, and ground by three-roll machine for 4 times to obtain a mixed paste; (3) Add Benzyldimethylamine, ethylene glycol diglycidyl ether, 1,4-butanediol glycidyl ether, pentaerythritol glycidyl ether, polyethylene wax, control the temperatur...

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Abstract

The invention provides a preparation method of an adhesive plastering piece with rapid solidification and easy storage. The method comprises the following steps: (1) surface mounting adhesive components are weighed according to parts by weight: (2) N-2-methylimidazole-N'-(P-cyanophenyl)carbamide, dicyandiamide, aminated lignin and epoxy resin are mixed by a planetary mixer, the materials are grinded by a three-roller, and mixed paste is obtained; (3) N,N-Dimethylbenzylamine, ethylene glycol diglycidyl ether, 1,4-butanediol diglycidyl ether, pentaerythritol glycidyl ether, and polyethylene waxare added into the planetary mixer, high temperature stirring is carried out, and after stirring is carried out till complete dissolving, cooling is carried out; (4) a mixed paste body, mercaptan terminated liquid butyronitrile rubber, nanometer calcium carbonate, and a pigment are mixed, and a reaction is carried out. The adhesive plastering piece with rapid solidification and easy storage can bestored for a long time without influencing performance of the adhesive plastering piece, and the solidification speed is fast.

Description

technical field [0001] The invention relates to the technical field of electronic glue, in particular to a preparation method of a fast-curing and easy-to-storage adhesive sheet. Background technique [0002] In the surface assembly process of printed circuit boards, the role of patch adhesive is to bond components before wave soldering, to maintain the position of components on the PCB board, and to prevent components from being deviated due to acceleration, vibration, impact, etc. move or fall off. The patch glue is mostly red and is often called red glue. Although the glue still remains on the substrate after soldering, it no longer plays any role. At this time, the solder replaces the role of fixing components and provides reliable electronic connection. SMD adhesive is one of the key materials in surface mount technology, and its performance is a key factor affecting assembly reliability and pass rate. Therefore, the selection of a suitable adhesive is the key to ens...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J11/08C09J11/06C09J11/04C09J11/00C09J7/00
Inventor 樊之雄
Owner 樊之雄
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