Spraying Research on the Resistive Film of Angular Displacement Sensor Made from Conductive Plastic

Abstract:

The conductive plastic is widely used in making sensitive materials such as angular displacement sensors with high-precision. The resistive film of the sensor is formed by spraying and its quality has a close relationship with the resistance liquid’ density, spraying pressure and time, and drying temperature and time. We draw a conclusion from experiments that for the conductive plastic with carbon fillers, the optimal linearity is obtained under a pressure of 0.5-0.6Mpa in 6-8 seconds and the best abrasion resistance is obtained at a drying temperature of 175°C in 4 minutes when the liquid resistance contains 15% carbon. While for the conductive plastics with metal fillers, the optimal linearity is obtained under a pressure of 0.7-0.8Mpa in 5-6 seconds, and the best abrasion resistance is obtained at a drying temperature of 165°C in 4 minutes when the liquid resistance contains 6% metal fillers. The research results have some guiding significance in improving performance and lowering cost.

• Periodical: Applied Mechanics and Materials (Volumes 121-126)
• Pages: 372-376
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.121-126.372
• Online since: October 2011
• Authors: Zhi Gen Yu, Bai Qing Zhou
• Keywords: Angular Displacement Sensor, Conductive Plastic, Liquid Resistance, Resistive Film, Spraying

References

[1] Jennifer Markarian. Increased demands in electronics drive additive developments in conductivity [J]. Plastics, Additives and Compounding, 2005, 7(1): 26-30.

DOI: 10.1016/s1464-391x(05)00331-4

[2] S Pauson, A Helser, M Buongiorno Nardelli. Tunable resistance of a carbon nanotube-graphite interface [J]. Science, 2000, 290: 1742-1744.

DOI: 10.1126/science.290.5497.1742

[3] Jay Amarasekera. Conductive plastics for electrical and electronic applications [J]. Reinforced Plastics, 2005, 49(8): 38-41.

DOI: 10.1016/s0034-3617(05)70734-7

[4] SHI Ming-hui. Application of Conductive Plastics in Electronic Fields[J]. Guangdong Chemical Industry, 2007, 34(5): 43-45.

[5] CHEN Xiang-feng, WU Lui-ling, WU Da-jun, CHEN Guo-hua. Prepation of HDPE/Graphite Nanosheets Conductive Composite via a Melt-Mixing Extrusion[J]. Plastics, 2006, 5: 10.

[6] Ray H Baughman, Anvar A Zakhidov, Walt A de Heer. Carbon nanotubes-the route twoward applications [J]. Science, 2002, 297: 787-792.

DOI: 10.1126/science.1060928

[7] XIE Chang-sheng. The Cornerstone of Human Civilization - Materials Science and Technology [M]. Wuhan: Huazhong University of Science and Technology Press, 2000: 105.

[8] Larg G, Bacskai J, Inzelt G. Impedance analysis of polymer film electrode [J]. Electochem Acta, 1993, (38): 773~780.

[9] Nieto F J R, Posadas D, Tucceri R I. Effect of the bathing electrolyte concertration on the charge transport process at poly(0-aminophenol) modified electrodes. An acimpedance study [J]. J Electroanal Chem, 1997, (434): 83~91.

DOI: 10.1016/s0022-0728(97)00235-0

[10] M R Falvo, GJ Clary, R M Taylor, etc. Bending and buckling of carbon nanotubes under large strain [J]. Nature, 1997, 389: 582-585.

DOI: 10.1038/39282

[11] Hatchett D W, Josowicz M, Janata T. Comparion of chemically and electrochemically synthesized polyaniline films [J]. J Elecro Chem. Sci, 1999: 2733~2739.

DOI: 10.1149/1.1392670

[12] LU Chang-zhen. Conductive Polyurethane Foam Plastics Developed [J]. Plastics, 2003, 32(5): 50-53.

[13] YANG Yu-ying, SHANG Xiou-li, KONG Chao. Preparation of PANI/PSF Conductive Composite Films and Its Characteristic [J]. Journal of Northwest Normal University (Natural Science Edition), 2006, 1: 16.