Plastic electrically conductive

The development of electrically conductive plastics is reviewed by R.B. Kaner and A.G. MacDiaimid (Set Arner. 106-111, February 1988). 

R. I. Danescu and D. A. Zumbrunnen, Production of Electrically Conducting Plastics Composites by Three-Dimensional Chaotic Mixing of Melts and Powder Additives, J. Vinyl Addit. Technol., 6, 26-33 (2000). 

Although electrically conductive plastics are not of very great economic significance at the present time, there are many specialised technical applications that would be unthinkable without these materials. Today they are mostly produced by incorporating conductive carbon-black in a variety of polymers, above all thermoplastic polymers. Other conductive additives (carbon fibres, steel fibres, aluminium flakes, metal coated carbon... 

Some fillers impart specialist secondary functions to the polymer. Glass in the form of fibres, flakes and hollow microbaUoons or microspheres has been used to fill polymers (Walker and Shashoua, 1996). Metal flakes or powdered metals are used as fillers in electrically conductive plastics, which are used to overcome electromagnetic interference in office equipment. Carbon-filled polymers are good conductors of electricity and heat. 

Ono [39] showed in 1986 that carbon powders coated with polymethylmethacrylate were directly moldable into sheets that had excellent thermal properties and could also be used as electric conductive plastics. 

The sanqiler is now available in a lightweight electrically conducting plastic. It can accommodate up to six screen filters along widi die inqiactor and back up filter stages. It is available from the molding con any on request. 

Ste] Electrical conductivity measurements, mechanical (Vickers hardness and plasticity) tests Electrical conductivity, plasticity, hardness... 

The degradation threshold for starch + PE + EAA blends was lower than the threshold for starch flakes + Parafilm blends. In both materials, a higher percentage of the starch was accessible to enzymatic attack at about 20% (v/v) starch. The 21% value is similar to conductivity thresholds reported for electrically conductive plastic-metal blends (20). The similarity in degradation... 

In many applications, electrically conductive plastic compounds are also used for shielding of electromagnetic waves. Electromagnetic compatibility is becoming increasingly important as electrical systems extend further into daily life. Depending on the field of application the product must fulfil different kinds of marks, such as the CE mark [20]. These aims can be facilitated by electromagnetic shielded enclosures. 

Electrafil Electrically conductive plastics Wilson-Fiberfil Inc./ DSM... 

Danescu, R.I. and Zumbrunnen, D.A. (1999) Production of electrically conducting plastics at reduced carbon black concentrations by three-dimensional chaotic mixing,... 

E. T. Strom and S. C. Rasmussen, ed., Electrically Conducting Plastics Revising the History of Conjugated Organic Polymers In 100- - Years of Plastics. Leo Baekeland and Beyond, Strom, ACS Symposium Series 1080, American Chemical Society, Washington, DC, 2011. 

A significant use of acetylene black is in dry cell batteries where it contributes low electrical resistance and high capacity. In rubber it gives electrically conductive properties to heater pads, tapes, antistatic belt drives, conveyor belts, and shoe soles. It is also useful in electrically conductive plastics such as electrical magnetic interference (EMI) shielding enclosures. Its contribution to thermal conductivity has been useful in rubber curing bags for tire manufacture. 

The research on new conductive polymer blends has always been aimed toward the production of conductive and processable materials. Researchers, however, cannot lose sight of the market possibilities for these materials. A computer search on the key words electrically conductive plastics ( elektrische leitende... 

This entry concerns the use of conducting polymers and similar substances as additives enabling insulating polymers to form electrically conducting plastics or composites. 

Two fundamentally different methods of obtaining electrically conductive plastic housings with a sufficiently high conductivity to provide EMI shielding have been developed to date. One method consists in subsequent metallization, e.g., by flame spraying of zinc. The high cost and length of time involved makes this method unattractive. 

Margolis, J. M. (ed.), Conductive Polymers and Plastics , Chapman and Hall, New York, 1989. Electrically conductive and ionically conductive polymers are discussed in the first part, and the metallic plating and coating on plastics, and electrically conductive plastics themselves in the second part. 

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