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One kind of conductive paste can be replaced by a new type of metal protective agent
Nano conductive coating agent due to its molecular structure containing a unique corrosion group and lubrication group, with strong corrosion resistance, excellent conductive performance and lubricity characteristics, can well solve the joint heating problems, coupled with the coating has the advantages of simple process, dosage Province, with the traditional joint protective agent compared with conductive paste, there is nothing comparable to this advantage, is used in the processing of joint heating the ideal metal protective agent, has extremely high application value, can be used to replace the conductive paste.
Carbon materials of graphite conductive and origin of
Carbon materials of graphite conductive and origin, and it is very difficult to crushing and dispersion, to the application to bring very great difficulty; carbon black conductive although very good, but the processing difficulties; TiOz, Pd0 metal oxide conductive property is poor, it is difficult to make high quality electrode. Commonly used metal conductive phase for the low resistance of Au, Ag, Cu, Ni and other metal powder, the best performance of the Au powder, Ag powder but is expensive; the price is relatively low, but under the action of the electric field Ag can generate electric migration phenomenon, the conductivity decreases, affect the service life of Cu,; Ni powder is cheaper, in the electric field does not produce migration, but when the temperature increase, oxidation will occur, leading to resistivity, therefore can only be used under low temperature. In order to reduce the contact resistance between the particles, improve the conductive performance, some low melting point alloy applied in low temperature slurry. In the electronic slurry curing process, with the rise of temperature, the low melting point alloy in the metal particles forming the connection between channels, reduce the resistance to. The 1.2 bonding phase ( glass )
Conductive silver paste coating uniformity of
Abstract: the solid tantalum electrolytic capacitors with conductive silver paste coating uniformity and compactness are analyzed and discussed, and the choice of promoter on the two important characteristics are improved, the suitable anti-settling agent and defoaming agent. Optimization of the properties of the coating.
Low temperature dry type silver conductive ink
Low temperature dry type silver paste Discusses the silver powder and resin, solvent dosage, baking temperature, baking time of slurry for volume resistivity, the shear strength of. Preparation of bulk resistivity of 16 cm and 5, slurry is composed of conductive ( metal or graphite ) and a binder ( polymer resin, glass powder ) and organic solvent paste (,, it applied to the other surface material, drying the film, it can be used as the wiring or printed circuit resistance, to use. Conductive paste with high temperature, low temperature difference. High temperature slurry coating by high temperature sintering, to film, and low-temperature slurry is at lower temperature by evaporation of the solvent into the film
Alkyd resin as base material of copper based composite conductive paste
Developed a kind of alkyd resin as base material of copper composite conductive paint, discussed the conductive filler content, particle size, coupling agent content and curing technology on conductive property of, and percolation model and the tunnel effect theory analyzes the influence law of. The results showed that adding 200 head 35%, a 40% copper, coupling agent content of 2%, at 50 degrees C after 10 min of room temperature curing fully cured, conductive coating with better comprehensive properties, the surface resistivity of 10 cm and 5
Conductive coating development present situation and new methods of
Various types of conductive coatings mechanism, preparation method, application and problems. Combined with the nanometer composite technology, put forward the new method of preparation of conductive coatings Coating film forming material surface resistivity is higher, produce charge cannot be quickly dissipated, causing the film surface electrostatic charge accumulation, which to paint in some aspects of the application has some limitations. Such as in medicine to dust, bacteria; medical operation to prevent electrical fibrillation; mining, petroleum and chemical to prevent electrostatic fire, explosion; in the electronic industry integrated circuit requirements for dust; in the textile fiber aggregation and anti. A conductive coating is to meet the demand and development of special functional coatings. Electrically conducting material properties can be in accordance with the conductivity size to distinguish between conductivity of less than 10: a ' 0 s / cm is an insulator, the conductivity is greater than 1 and S / cm is a conductor, in between the two is the semiconductor. The conductive coating is refers to the conductivity in the 10 - to S / cm above has a conductor and semiconductor properties of coatings ( '", has been widely used in electrical and electronic industry, printed circuit board, switch, marine antifouling coating, electric materials, electromagnetic shielding, surface dust and other fields. Conductive coating in accordance with the conductive mechanism can be divided into two kinds of additive type and structure. Add type conductive paint refers to the conductive particles of an inorganic or organic antistatic agent added to the non-conductive resin by organic resin, the physical and mechanical properties and filler conductive ability; structural conductive paint refers to the use of itself or through." ' doped with conductive polymer materials, directly into the membrane or with other organic polymer blend. Add type conductive coating
HTS Superconducting thick film electronic paste, research trends and application prospect
The superconducting bulk materials, thick film superconductor microelectronic components and circuit. With fast response time, degree of integration and high sensitivity, low working voltage, power characteristics of a small. It is in the low temperature superconducting work, high cost, complex equipment. Thus greatly limits its application. Since 1986, has developed a high temperature superconducting material can succeed at liquid nitrogen temperature condition. The superconducting micro components has the advantages of simple equipment, low cost, in the microelectronics domain has an extremely wide application prospect, gave great attention all over the world.
Antistatic polymer composite materials
With the rapid development of science and technology, electronic devices, high integration, communications and electronic equipment such as radar is widely used, gunpowder, explosives, propellants, explosives, pyrotechnics, ammunition, electric explosive device, electronic fuze and other military products electromagnetic environment is getting worse, more and more serious hazards of electromagnetic radiation. Pyrotechnics in the transport, storage in the process of friction, impact, contact, separation to produce electrostatic accumulation and discharge, the consequences be unbearable to contemplate
New radar interference material of conductive polyaniline
Conductive polyaniline ( PAN ) is a potentially valuable new RF and microwave absorbent. In polyaniline conductive filler such as carbon black, add a variety of graphite, metal powder or by chemical doping, the conductivity is significantly improved, and the proportion of small, easy processing molding. This paper describes the synthesis method, using XRD, FTIR on its structure was characterized, preliminary tests of this material on millimeter wave radar attenuation effect, test results show that the conductive polyaniline in SMM wave band with attenuation. Along with the commercial, military and technology electronic products and electronic equipment come out,
Waterborne conductive paint
Uses: Division I conductive paint applied to notebook computers, the Internet, DVD, set-top boxes, projectors, GPS, navigation systems, cell phone case, PDA, e-books, vehicle traveling data recorder, car DVD, all kinds of medical equipment, printer developing roller, radio, electronic scales, cash registers, POS machines, all kinds of plastic casing, communications products (mobile phones), portable electronic products, consumer electronics, network hardware (servers, etc.), medical equipment
Electromagnetic shielding conductive coatings development present situation
Silver-plated copper powder conductive paint the preparation and corrosion failure research
Epoxy resin matrix copper powder conductive paint the electric properties contrast
Transparent conductive coatings
Conductive paint resin
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