CN104371564A - Conductive adhesive - Google Patents

Abstract

The invention discloses a conductive adhesive prepared from the following raw materials in parts by weight: 9-15 parts of waterborne polyurethane latex, 3-10 parts of butyldiglycol, 3-10 parts of a coupling agent, 3-8 parts of organobentonite of 20-50 meshes, 2-6 parts of a water-based leveling agent, 2-5 parts of asphalt, 3-8 parts of rubber powder, 2-6 parts of terpene resin, 8-14 parts of maleic anhydride, 3-8 parts of a tert-butyl hydroperoxide rongalite mixture, 4-6 parts of alkyl phenyl polyoxyethylene ether, 3-6 parts of glycidyl methacrylate, 2-7 parts of sodium bicarbonate, 3-5 parts of silicone oil, 2-6 parts of nano calcium oxide and 10-20 parts of a conductive filler. The conductive adhesive disclosed by the invention has the beneficial effects of good conductivity, uniform distribution of the conductive filler, stable performance and good cohesiveness.

Description

A kind of conductive adhesive

Technical field

The present invention relates to a kind of conductive adhesive.

Background technology

Electro-conductive adhesive is a kind of tackiness agent solidifying or have certain conductivity after drying, usual preparation method is for filmogen with matrix resin and solidifying agent, conductive filler material is conductive additive, by the bonding effect of matrix resin, conducting particles is combined together to form conductive network passage, realizes being connected by the conduction of adhesives.Electro-conductive adhesive chief component is matrix resin, solidifying agent, conductive additive and auxiliary agent composition.Electro-conductive adhesive purposes is very extensive, can carry out metal chassis connection, bonding wire and base, bonding element and the plane hole through printed wiring, and the tuning and hole of bonding waveguide is repaired.But existing electro-conductive adhesive is difficult to be evenly dispersed in adhesive system, greatly reduce the cementability of tackiness agent.Service requirements can not be met.

Summary of the invention

For the deficiencies in the prior art, the technical problem to be solved in the present invention is, provides a kind of conductive adhesive, and have good conductive capability, conductive filler material is evenly distributed, stable performance, and cohesiveness is also better simultaneously.

For solving the deficiencies in the prior art, the technical scheme that the present invention takes is: a kind of conductive adhesive, is made up of the raw material of following parts by weight:

Aqueous polyurethane emulsion 9-15 part, butyl 3-10 part, coupling agent 3-10 part, 20-50 order organobentonite 3-8 part, water-based flow agent 2-6 part, pitch 2-5 part, rubber powder 3-8 part, terpine resin 2-6 part, maleic anhydride 8-14 part, tertbutyl peroxide rongalite mixture 3-8 part, alkylphenol polyoxyethylene 4-6 part, glycidyl methacrylate 3-6 part, sodium bicarbonate 2-7 part, silicone oil 3-5 part, nano calcium oxide 2-6 part, conductive filler material 10-20 part.

The invention has the beneficial effects as follows, conductive adhesive of the present invention, have good conductive capability, conductive filler material is evenly distributed, stable performance, and cohesiveness is also better simultaneously.

Embodiment

embodiment 1

A kind of conductive adhesive, be made up of the raw material of following parts by weight:

Aqueous polyurethane emulsion 9 parts, butyl 3 parts, coupling agent 3 parts, 20-50 order organobentonite 3 parts, water-based flow agent 2 parts, pitch 2 parts, rubber powder 3 parts, terpine resin 2 parts, maleic anhydride 8 parts, 3 parts, tertbutyl peroxide rongalite mixture, alkylphenol polyoxyethylene 4 parts, glycidyl methacrylate 3 parts, sodium bicarbonate 2 parts, silicone oil 3 parts, nano calcium oxide 2 parts, conductive filler material 10 parts.

embodiment 2

A kind of conductive adhesive, be made up of the raw material of following parts by weight:

Aqueous polyurethane emulsion 15 parts, butyl 10 parts, coupling agent 10 parts, 20-50 order organobentonite 8 parts, water-based flow agent 6 parts, pitch 5 parts, rubber powder 8 parts, terpine resin 6 parts, maleic anhydride 14 parts, 8 parts, tertbutyl peroxide rongalite mixture, alkylphenol polyoxyethylene 6 parts, glycidyl methacrylate 6 parts, sodium bicarbonate 7 parts, silicone oil 5 parts, nano calcium oxide 6 parts, conductive filler material 20 parts.

Claims (1)

1. a conductive adhesive, is characterized in that: be made up of the raw material of following parts by weight:

Aqueous polyurethane emulsion 9-15 part, butyl 3-10 part, coupling agent 3-10 part, 20-50 order organobentonite 3-8 part, water-based flow agent 2-6 part, pitch 2-5 part, rubber powder 3-8 part, terpine resin 2-6 part, maleic anhydride 8-14 part, tertbutyl peroxide rongalite mixture 3-8 part, alkylphenol polyoxyethylene 4-6 part, glycidyl methacrylate 3-6 part, sodium bicarbonate 2-7 part, silicone oil 3-5 part, nano calcium oxide 2-6 part, conductive filler material 10-20 part.