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Preparing method for lamp packaging conductive adhesive

A conductive adhesive and adhesive technology, applied in conductive adhesives, adhesives, epoxy resin adhesives, etc., can solve the problems of shortening the curing time of the adhesive, increasing the bonding force, easy aging and falling off, and achieving good electrical and thermal conductivity. , Good adhesion, not easy to age and fall off

Inactive Publication Date: 2017-03-15
CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention: Aiming at the defects of low bonding strength, easy aging and falling off of the current common conductive adhesive, and long curing time, the method uses fig branches and roots as raw materials, and releases the viscous substance therein through enzymolysis , concentrated in a vacuum to obtain high-viscosity fig pulp, and then blended the pulp and conductive carbon black under the action of a coupling agent to obtain a conductive paste, then extracted the antioxidant solution from the rosemary residue, and epoxy resin and conductive After the slurry is compounded, the A component of the conductive adhesive is obtained, and then the B component is prepared with a curing agent, and the packaged conductive adhesive is obtained by blending in proportion. The present invention uses the high-viscosity active groups in the fig pulp to increase the adhesive and The number of chemical bonds between the substrates increases the bonding force to improve the low bonding strength of traditional adhesives, and then uses rosemary antioxidant solution to increase the anti-aging properties of adhesives, which also makes up for the traditional conductive adhesives that are easy to age and fall off The defect of the two components blending greatly shortens the curing time of the adhesive, which has excellent application prospects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First, take the branches and roots of the fig tree and wash them with absolute ethanol and deionized water for 10 minutes respectively, put the washed branches and roots into a corundum mortar and grind for 20 minutes to obtain a slurry, and put the slurry into an enzymatic hydrolysis tank In the tank, add deionized water equal to the mass of the pulp, 1% pectinase of the pulp, and 2% cellulase of the pulp, and perform enzymatic hydrolysis at 30°C for 6 hours; After the end, filter to obtain the enzymolysis solution, then move the enzymolysis solution into a vacuum concentration tank, reduce the pressure in the tank to 1000Pa, and concentrate under reduced pressure to 1 / 3 of the original volume of the enzymolysis solution to obtain a fig pulp concentrate. Mix the pulp concentrate and acetylene carbon black at a ratio of 1:1 and put it into a reaction kettle, then add monoalkoxy titanate with 1% of the total mass of acetylene carbon black into the kettle, stir and react f...

example 2

[0020]First, take the branches and roots of the fig tree and wash them with absolute ethanol and deionized water for 13 minutes respectively, put the washed branches and roots into a corundum mortar and grind for 25 minutes to obtain a slurry, and put the slurry into an enzymatic hydrolysis tank In the tank, add deionized water equal to the mass of the pulp, 2% pectinase of the pulp, and 3% cellulase of the pulp, and perform enzymatic hydrolysis at 35°C for 7 hours; After the end, filter to obtain the enzymolysis solution, then move the enzymolysis solution into a vacuum concentration tank, reduce the pressure in the tank to 1100Pa, and concentrate under reduced pressure to 1 / 3 of the original volume of the enzymolysis solution to obtain a fig pulp concentrate. Mix the pulp concentrate and acetylene carbon black at a ratio of 1:1 and put it into a reaction kettle, then add monoalkoxy titanate with 1.5% of the total mass of acetylene carbon black into the kettle, stir and react ...

example 3

[0023] First, take the branches and roots of the fig tree and wash them with absolute ethanol and deionized water for 15 minutes respectively, put the washed branches and roots into a corundum mortar and grind for 30 minutes to obtain a slurry, and put the slurry into an enzymatic hydrolysis tank In the tank, add deionized water equal to the mass of the pulp, 3% pectinase of the pulp and 4% cellulase of the pulp, and perform enzymatic hydrolysis at 40°C for 8 hours; After the end, filter to obtain the enzymolysis solution, then move the enzymolysis solution into a vacuum concentration tank, reduce the pressure in the tank to 1200Pa, and concentrate under reduced pressure to 1 / 3 of the original volume of the enzymolysis solution to obtain a fig pulp concentrate. Mix the pulp concentrate and acetylene carbon black at a ratio of 1:1 and put it into a reaction kettle, then add monoalkoxy titanate with 2% of the total mass of acetylene carbon black into the kettle, and stir for 40 m...

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Abstract

The invention discloses a preparing method for lamp packaging conductive adhesive, and belongs to the technical field of adhesive preparation. The method comprises the steps of adopting fig branches and roots as raw materials, releasing stickum therein by enzymolysis, and obtaining high-viscosity fig tree syrup by vacuum concentration; then blending the tree syrup and conductive carbon black and obtaining electrocondution slurry under the effect of coupling reagent, extracting antioxidant fluid from rosemary residue, compounding the antioxidant fluid with epikote and the electrocondution slurry and obtaining conducting resin component A, using curing agent to prepare component B, and obtaining the packaging conductive adhesive by performing compounding proportionally. The method utilizes high-viscosity active radical groups in the fig tree syrup to improve the number of chemical bonds between the adhesive and matrix, improves binding force so as to ameliorate the problem of the low bonding strength of traditional adhesive, increases the ageing resistance of the adhesive by the antioxidant fluid of the rosemary, and makes up for the defect that the traditional conducting resin gets aged and sheds easily. The compounding of the two components greatly shortens the curing time of the adhesive. The preparing method for lamp packaging conductive adhesive has a good application prospect.

Description

technical field [0001] The invention discloses a method for preparing a conductive adhesive for lamp packaging, and belongs to the technical field of adhesive preparation. Background technique [0002] Conductive adhesive, referred to as conductive adhesive, is an adhesive that can effectively bond various materials and has conductive properties. Conductive adhesive can be divided into two categories: structural type and filling type according to the base composition. The structural type refers to the conductive adhesive in which the polymer material itself is conductive as the matrix of the conductive adhesive; the filled type refers to the conductive adhesive that usually uses the adhesive as the matrix and relies on the addition of conductive fillers to make the glue conductive. At present, the preparation of conductive polymer materials is very complicated, and there is still a long way to go from practical application, so the widely used ones are filled conductive adhe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J9/02C09J11/00
CPCC09J163/00C08L2203/206C09J9/02C09J11/00C08L91/00C08K13/02
Inventor 周丽花张晶薛蕾
Owner CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH
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