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Single-component environmentally-friendly organic silicon-acrylate electronic glue and application thereof

An acrylate, environmentally friendly technology, used in circuits, adhesives, electrical components, etc., can solve the problems of polluting the environment, electronic glue is toxic, easy to crack, etc.

Inactive Publication Date: 2013-03-06
SHANGHAI XIYI NEW MATERIAL SCI & TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an environment-friendly silicone-acrylate electronic glue with excellent performance, safety and non-toxicity, aiming at the existing electronic glues that are toxic, easy to crack, and pollute the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 25 grams of butyl methacrylate, 10 grams of hydroxyethyl methacrylate, 15 grams of 2-methyl methacrylate, 15 grams of methacryloxypropyldiethoxysilane, 5 grams of cyclopentanedi Slowly add ethylene and 5 grams of styrene into 10 grams of propylene glycol butyl ether and 15 grams of N-methylpyrrolidone mixed solvent and stir evenly, use cyclohexanone peroxide as the initiator, and use the solution polymerization method under the condition of 70-90 °C , and react for 7 hours to obtain an environment-friendly silicone-acrylate resin, which can be directly used for environment-friendly silicone-acrylate electronic glue.

[0029] Application of a single-component environment-friendly silicone-acrylate electronic glue, the single-component environment-friendly silicone-acrylate electronic glue is used for protective coatings of electronic devices, integrated circuits, printed circuits, LED chips, etc. , protective adhesives and packaging materials.

Embodiment 2

[0031] 5 grams of butyl acrylate, 5 grams of methacrylic acid, 15 grams of methyl cyanoacrylate, 10 grams of vinylphenyl dimethoxysilane, 5 grams of allyl disiloxane, 10 grams of diisobutylene Slowly add 30 grams of N-methylpyrrolidone and 20 grams of dipropylene glycol methyl ether, mix well, use azobisisobutyronitrile as an initiator, and use a solution polymerization method at 70-90 ° C for 10 hours to obtain an environmentally friendly type silicone-acrylate resin.

[0032] Others are the same as embodiment 1.

Embodiment 3

[0034] In this example, 5 grams of butyl methacrylate, 15 grams of ethyl methacrylate, 5 grams of butyl acrylate, 7 grams of vinylphenyl dimethoxysilane, 3 grams of methacryloxypropyl di Ethoxysilane and 5 grams of 4-methyl-1-(1-methylethyl)-3-cyclohexene are slowly added to 30 grams of dimethyl adipate and 30 grams of dimethyl glutarate and mixed Uniform, with tert-butyl hydroperoxide-N,N-dimethyldodecylamine as the initiator, under the condition of 40-60 ℃, adopt the solution polymerization method, react for 20 hours, and get the environment-friendly acrylate resin .

[0035] Others are the same as embodiment 1.

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PUM

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Abstract

The invention provides single-component environmentally-friendly organic silicon-acrylate electronic glue. The electronic glue comprises the following components in percentage by weight: (1) 50 to 100 percent of environmentally-friendly acrylic resin, (2) 0 to 50 percent of environmentally-friendly solvent, (3) 0 to 30 percent of reinforcing agent and (4) 0 to 20 percent of auxiliary agent, wherein the environmentally-friendly organic silicon-acrylate resin is prepared from an acrylic monomer, an alkene organic silicon monomer, an olefin monomer, an alkenyl aromatic compound monomer and the environmentally-friendly solvent serving as raw materials; the electronic glue is prepared in the presence of a thermal initiator or a redox initiator by a solution polymerization method; and solid content is between 20 and 80 weight percent. The novel single-component environmentally-friendly organic silicon-acrylate electronic glue has the advantages of no toxicity, high elasticity, high weather resistance, convenience of construction, high storage stability and the like, is safe and is convenient to spread; on the other hand, the electronic glue has a wide application range and can be widely applied to protective coatings, protective adhesives, packaging materials and the like of electronic devices, integrated circuits, printed circuits, light emitting diode (LED) chips and the like.

Description

technical field [0001] The invention relates to the fields of chemical industry, electronics, etc., and relates to a novel single-component environment-friendly silicone-acrylate electronic adhesive and its application. Background technique [0002] Electronic glue is a broad term used for bonding, sealing, potting and coating protection of electronic components. [0003] In order to ensure that circuit boards, electronic devices, LED chips, etc. maintain good insulation performance during use, avoid external impact and damage, and will not be affected by machinery, heat, humidity, dust, oily smoke, corrosive gases, etc., it is necessary to coat them Protective coating or encapsulation. Currently commonly used electronic adhesives include epoxy resin adhesives, silicone adhesives, solvent-based polyurethane adhesives, and solvent-based phenolic adhesives. Among them, epoxy resin electronic adhesive has good bonding performance and low price, but it is easy to crack, and ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/06C09J133/02C09J133/14C09J143/04C09D133/06C09D133/02C09D133/14C09D143/04C09K3/10H01L23/29H01L33/00
Inventor 唐勇
Owner SHANGHAI XIYI NEW MATERIAL SCI & TECHCO