CN1048557A - Explosion proof and electric conducting binder - Google Patents
Explosion proof and electric conducting binder Download PDFInfo
- Publication number
- CN1048557A CN1048557A CN 90107211 CN90107211A CN1048557A CN 1048557 A CN1048557 A CN 1048557A CN 90107211 CN90107211 CN 90107211 CN 90107211 A CN90107211 A CN 90107211A CN 1048557 A CN1048557 A CN 1048557A
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- agent
- copper powder
- conductive adhesive
- electro
- binding agent
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Abstract
The present invention is a kind of explosion proof and electric conducting binder, and it is made up of electro-conductive material and matrix material two big components.The present invention is characterised in that electro-conductive material has fresh copper powder, reductive agent, solidifying agent, promotor and thinner, and matrix material has Resins, epoxy and coupling agent.Such combination can guarantee that fresh copper powder is not oxidized, and it is long-term and sufficient with contacting of reductive agent.Therefore the conductivity of binding agent can not descend because of the oxidation of copper powder.Because the consumption of reductive agent reduces, the adhesive property of binding agent is improved in addition, cost also reduces simultaneously.This binding agent can be used on highfield, in the electric connection of big electric current, if any thunder and lightning and electrostatic place, realizes intermetallic electric connection with regard to available binding agent of the present invention, thereby avoids the fire that causes because of spark corona etc.
Description
The present invention relates to matrix material, is a kind of explosion proof and electric conducting binder specifically.
The conductive adhesive kind is more at present, and having with silver powder is the Resins, epoxy conduction binding agent of electro-conductive material, and it has reliable electroconductibility, but costs an arm and a leg, and material source lacks, and a large amount of the use had any problem.Also having with the copper powder is the epoxy adhesive of electro-conductive material, but oxidization of copper powder speed is fast, and conductivity descends rapidly, so the conductivity instability of binding agent.In order to overcome this shortcoming, in binding agent, add reductive agent, make oxidation copper reduction (" bonding " 1986, No.3, P.23-27).This binding agent is made up of first and second liang of components, and the first component is made up of copper powder and Resins, epoxy, and the second component is to be grouped into by one-tenth such as reductive agents, and two components are deposited separately.In use, again first, second two components are mixed.The problem that the binding agent of this combination exists is that the copper powder surface is all surrounded by resin, copper powder can not fully contact with reductive agent, thereby influenced the reducing power of reductive agent, must adopt a large amount of reductive agent (account for copper powder 10%), but the physical strength of binding agent has reduced, and cost also increases.
It is stable to the purpose of this invention is to provide a kind of conductivity, and physical strength is higher, the explosion proof and electric conducting binder that price is low again.
Conductive adhesive of the present invention is made up of electro-conductive material and matrix material two big components.The electro-conductive material component is made up of fresh copper powder, phenols reductive agent and amine curing agent, promotor and thinner with reducing property.Binder material ingredients is made up of Resins, epoxy and coupling agent.Such combination can make the copper powder surface fully contact for a long time with reductive agent, and not cause oxidization of copper powder, thereby guarantee binding agent in use, the conductivity all-the-time stable of copper powder.And the reductive agent usage quantity can reduce, and consumption is original 1/2nd.Fresh copper powder is to select cu-zn alloy powder for use, and wherein copper content is 75～85%, and zinc content is 15～25%.This oxidization of copper powder speed is low than fine copper.Reductive agent mainly adopts the phenols reductive agent, as Resorcinol, anthracene etc., can use one or more reductive agent.Solidifying agent mainly has the solidifying agent of reductibility with polymeric amide, polyethylene polyamine, ketoimine etc.Promotor is 2,4,6-three (dimethylin phenol) (trade name is DMP-30), and it can make Resins, epoxy further quicken to solidify.Coupling agent adopts γ-An Jibingjisanyiyangjiguiwan (trade name KH-550).It is as follows that electro-conductive material is formed proportioning: copper powder: reductive agent: solidifying agent: promotor: thinner=100: 4～8: 20～30: 1.0～1.5: 10～15.The proportioning of binder material component is as follows: Resins, epoxy: coupling agent=20～30: 5～8(is a benchmark with copper powder 100).The compound method of conductive adhesive of the present invention is earlier to take by weighing required raw material by the proportioning of above-mentioned two big components, the electro-conductive material component is mixed leave in the container then, the while binder material ingredients mix leave in another container stand-by.As long as with this two components thorough mixing, be coated in through giving the metal of handling and joined during use.This two big component can adopt different ratios as required.Said ratio is weight ratio.
Conductive adhesive of the present invention is because conductivity is stable, and the cohesive strength height can use in the electric connection of highfield, big electric current, thereby replace welding, avoids causing fire.As irritate the fire that causes because of thunder and lightning and static for fear of oil, oil tank is except disposing necessary lightning protection, anti-electrostatic facility, also will oil tank electric integrated and be effective ground ground connection, just must have in the contact of the flange wire jumper of oil tank, ground connection junction etc. conductivity good and stable, connect firm again bonding, welding is a kind of effective way, but it has naked light, and fire hazardous adopts conductive adhesive of the present invention just can solve this difficult problem effectively.Conductive compositions of the present invention is to adopt copper powder, and the usage quantity of reductive agent also greatly reduces, so the cost of binding agent is also low, can use in a large number.
Embodiments of the invention are as follows:
Embodiment:
Electro-conductive material component copper powder 8 grams
Polymeric amide 1 gram
Polyethylene polyamine 1 gram
Trolamine 1 gram
Resorcinol 0.4 gram
DMP-30 0.09 gram
Binder material ingredients Resins, epoxy (E-44) 2 grams
KH-550 0.5 gram
With above-mentioned two big components by 4: the 1(weight ratio) mix and to mix well, be coated on the tinsel that eliminate rust, coat-thickness is 0.2～0.5 millimeter, and coating is even, no bubble, at room temperature place 12～15 hours after, completion of cure.Recording cohesive strength is 20～30 kilograms per centimeter
2, volume specific resistance is 2 * 10
-2Ohmcm.
Product of the present invention is used for the petroleum tank except above-mentioned, also can be used for powder magazine, shot house, natural gas facility, dust workshop, there is the mine etc. of combustion explosion gas that tie point, flange and the ground connection junction of various metallic conduits in the place of thunder and lightning and electrostatic accident takes place easily, can both play conduction and cohesive action, prevent to produce the fire failure that spark causes.
Claims (7)
1, a kind of blast protection conductive adhesive, it is made up of electro-conductive material and matrix material two big components, the present invention is characterised in that the electro-conductive material component has fresh copper powder, phenols reductive agent, the amine curing agent with reductibility and promotor, thinner, its proportioning is as follows: copper powder: reductive agent: solidifying agent: promotor: thinner=10: 4～8: 20～30: 1.0～1.5: 10～15 (weight ratio), binder material ingredients has Resins, epoxy and coupling agent, and its proportioning (weight ratio) is as follows: Resins, epoxy: coupling agent=20～30: 5～8 (are benchmark with copper powder 100).
2, conductive adhesive as claimed in claim 1 is characterized in that fresh copper powder is a copper zinc alloy, and copper content is 75～85%(weight ratio), zinc content is 15～25%.
3, conductive adhesive as claimed in claim 1 is characterized in that reductive agent is Resorcinol and anthracene.
4, conductive adhesive as claimed in claim 1 is characterized in that solidifying agent is polymeric amide, polyethylene polyamine, ketoimine.
5, conductive adhesive as claimed in claim 1 is characterized in that promotor is 2,4,6-three (Dimethylaminobenzene powder).
6, conductive adhesive as claimed in claim 1 is characterized in that coupling agent is a γ-An Jibingjisanyiyangjiguiwan.
7, the purposes of conductive adhesive as claimed in claim 1 is characterized in that can using in the electric connection of highfield, big electric current
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107211 CN1048557A (en) | 1990-08-28 | 1990-08-28 | Explosion proof and electric conducting binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107211 CN1048557A (en) | 1990-08-28 | 1990-08-28 | Explosion proof and electric conducting binder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1048557A true CN1048557A (en) | 1991-01-16 |
Family
ID=4880440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90107211 Pending CN1048557A (en) | 1990-08-28 | 1990-08-28 | Explosion proof and electric conducting binder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1048557A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304338A (en) * | 2011-07-08 | 2012-01-04 | 上海邦中高分子材料有限公司 | Bonding resin with conductive property |
| CN104497924A (en) * | 2014-11-25 | 2015-04-08 | 四川大学 | New antistatic hot melt adhesive and preparation method thereof |
-
1990
- 1990-08-28 CN CN 90107211 patent/CN1048557A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304338A (en) * | 2011-07-08 | 2012-01-04 | 上海邦中高分子材料有限公司 | Bonding resin with conductive property |
| CN104497924A (en) * | 2014-11-25 | 2015-04-08 | 四川大学 | New antistatic hot melt adhesive and preparation method thereof |
| CN104497924B (en) * | 2014-11-25 | 2016-08-24 | 四川大学 | A kind of antistatic PUR and preparation method thereof |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |