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Preparation and Properties of Polymer PTC Composites for Process Safety  

강영구 (호서대학교 안전시스템공학과)
조명호 (호서대학교 대학원 안전공학과)
Publication Information
Journal of the Korean Society of Safety / v.18, no.3, 2003 , pp. 101-108 More about this Journal
Abstract
Polymeric positive temperature coefficient(PTC) composites have been prepared by incorporating carbon black(CB) into high density polyethylene(HDPE), polyphenylene sulfide(PPS) and polybutylene terephthalate(PBT) matrices. A PTC effect was observed in the composite, caused by the large thermal expansion due to He consecutive melting of HDPE, PPS and PBT crystallites. This theory is based upon the premise that the PTC phenomenon is due to a critical separation distance between carbon particles in the polymer matrix at the higher temperature. The influence of PTC characteristics of the PPS/CB composite can be explained by DSC result. HDPE, one of prepared composition, exhibit the higher performance PTC behavior that decreaseing of negative temperature coefficient(NTC) effect and improved reproducibility by chemically crosslinking. Also, PBT/CB and PPS/CB composites exhibit the higher PTC peack temperature than HDPE/CB PTC composite, individually $200^{\circ}C$ and $230^{\circ}C$. These PTC composite put to good use in a number of safety application, such as self$.$controlled heater, over-current protectors, auto resettable switch, high temperature proctection sensor, etc.
Keywords
PTC effect; NTC effect; polymer composite; electric conductivity; carbon black; over-current protector; sensor;
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1 W. Wu, B. L. Song, Research on radiation crosslinked self regulating electrical heater, Radiation Physics and Chemistry, Vol. 46, pp. 1015-1018, 1995   DOI   ScienceOn
2 K. Matsushige, K. Kobayashi, N. Iwami, T. Horiuchi, E. Shitamori, M. Itoi, 'Nanoscopic analysis of the conduction mechanism in organic positive temperature coefficient composite materials,' Thin Solid Films, Vol. 273, pp. 128-131, 1996   DOI   ScienceOn
3 A. E. Job, F. A. Oliveira, N. Alves, J. A. Giacometti, L. H. C. Mattoso, 'Conductive composites of natural rubber and carbon black for pressure sensors,' Synthetic Metals, Vol. 135-136, pp. 99-100, 2003   DOI   ScienceOn
4 Y. Luo, G. Wang, B. Zhang, Z. Zhang, 'The influence of crystalline and aggregate structure on PTC characteristic of conductive polyethylene/carbon black composite,' European Polymer Journal, Vol. 34, pp. 1221-1227, 1998   DOI   ScienceOn
5 Z. Zhao, W. Yu, X. He, X. Chen, The conduction mechanism of carbon black-filled poly(vinylidene fluoride) composite, Materials Letters 4292, pp. 1-77, 2003
6 C. Schmitt, M. Lebienvenu, 'Electrostatic painting of conductive composite materials,' Journal of Materials Processing Technology, Vol. 134, pp. 303-309, 2003   DOI   ScienceOn
7 H. Tang, X. Chen, Y. Luo, 'Electrical and dynamic mechanical behavior of carbon black filled polymer composites,' European Polymer Journal, Vol. 32, pp. 963-966, 1996   DOI   ScienceOn
8 강영구, 곽봉신, 김정훈, 'PU/Layer Silicate 복합체의 난연성,' 한국산업안전학회 추계학술발표회 논문집, pp. 311-315, 2002
9 Z. G. Zhou, Z. L. Tang, Z. T. Zhang, W. Wlodarski, 'Perovskite oxide of PTCR ceramics as chemical sensors,' Sensors and Actuators, Vol. 77, pp. 22-26, 2001   DOI   ScienceOn
10 H. Tang, X. Chen, Y. Luo, 'Studies on the PTC/NTC effect of carbon black filled low density polyethylene composites,' European Polymer Journal, Vol. 33, pp. 1383-1386, 1997   DOI   ScienceOn
11 J. Feng, C. M. Chan, 'Double positive temperature coefficient effects of carbon black filled polymer blends containing two semicrystalline polymers,' Polymer, Vol. 41, pp. 4559-4565, 2000   DOI   ScienceOn
12 C. Y. Huang, C. C. Wu, 'The EMI shielding effectiveness of PC/ABS/ nickel-coated carbon fibre composites,' European Polymer Journal, Vol. 36, pp. 2729-2737, 2000   DOI   ScienceOn
13 G. Boiteux, J. Foumier, D. Issotier, G. Seytre, G. Marichy, 'Conductive thermoset composites : PTC effect,' Synthetic Metals, Vol. 102, pp. 1234-1235, 1999   DOI   ScienceOn
14 강영구, 조명호 '공정안전용 결로센서에 대한연구,' 한국산업안전학회 추계학술발표회 논문집, pp. 279-282, 1998
15 강영구, 곽봉신, 'Polymer형 내열성 PTC 소재의 특성연구,' 한국산업안전학회 춘계학술발표회 논문집, pp. 249-252, 1999
16 C. Y. Huang, T. W. Chiou, 'The effect of reprocessing on the EMI shielding effectiveness of conductive fibre reinforced ABS composites,' European Polymer Journal, Vol. 34, pp. 37-43, 1998   DOI   ScienceOn
17 M. G. Lee, Y. C. Nho, 'Electrical resistivity of carbon black filled high density polyethylene (HDPE) composite containing radiation crosslinked HDPE particles,' Radiation Physics and Chemistry, Vol. 61, pp. 75-79, 2001   DOI   ScienceOn
18 Y. Hual, T. Hao, P. Jianhui, C. Xinfang, 'The stabilization effect of radiation crosslinking on positive temperature coefficient performances of carbon black-polymer composites,' Radiation Physics and Chemistry, Vol. 42, pp. 135-137, 1993   DOI   ScienceOn
19 H. Tang, X. Chen, Y. Luo, 'Electrical and dynamic mechanical behavior of carbon black filled polymer composites,' European Polymer Journal, Vol. 32, No. 8, p. 963-966, 1996   DOI   ScienceOn
20 J. G. Kim, 'Synthesis of porous (Ba,Sr)TiO3 ceramics and PTCR characteristics,' Materials Chemistry and Physics, Vol. 78, pp. 154-159, 2003   DOI   ScienceOn
21 D. Zhang, D. Zhou, S. Jiang, X. Wang, S. Gong, 'The AC electrical failure behaviors and mechanisms of current limiting BaTi based Positive temperature coefficient (PTC) ceramic thermistors coated with electroless nickel phosphorous electrode,' Sensors and Actuators, Vol. 101, pp. 123-131, 2002   DOI   ScienceOn
22 S. J. Park, J. C. Kim, H. Y. Kim. 'Roles of work of adhesion between carbon blacks and thermoplastic polymers on electrical properties of composite,' Journal of Colloid and Interface Science, Vol. 255, pp. 145-149, 2002   DOI   ScienceOn
23 K. P. Sau, T. K. Chaki, D. Khastgir, 'Carbon fibre filled conductive composites based on nitrile rubber (NBR), ethylene propylene diene rubber (EPDM) and their blend,' Polymer, Vol. 39, pp. 6461-6471, 1998   DOI   ScienceOn
24 강영구, '잠재적 화재.폭발 위험지역 작업용 녹전환형 중방식 코팅제의 특성에 관한 연구,' 산업안전학회지, 제 13권, 제 3호, pp. 102-111, 1998
25 강영구, 정문호, '다성분 인화성 액체의 Gel화특성 연구,' 한국산업안전학회 춘계학술발표회 논문집, pp. 73-26, 1999
26 J. Feng C. M. Chan, 'Positive and negative temperature coefficient effects of an alternating Co polymer of tetrafluoroethylene ethylene containing carbon black-filled HDPE particles,' Polymer, Vol. 41, pp. 7279-7282, 2000   DOI   ScienceOn
27 N. C. Das, T. K. Chaki, D. Khastgir, 'Effect of processing parameters, applied pressure and temperature on the electrical resistivity of rubber-based conductive composites,' Carbon, Vol.40, pp. 807-816, 2002   DOI   ScienceOn
28 M. H. Bischoff, F. E. Dolle, 'Electrical Conductivity of carbon black polyethylene composites : Experimental evidence of the change of cluster connectivity in the PTC effect,' Carbon, Vol. 39, pp. 374-382, 2001