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A Study on the Preparation of Halogen Free M-P Flame Retardant and Its Application to Composite Material  

Lee, Soon-Hong (Department of Environmental Engineering, Anyang University)
Publication Information
Journal of the Korean Society of Safety / v.24, no.6, 2009 , pp. 63-71 More about this Journal
Abstract
In order to improve flame retardancy, the halogen free organic melamine phosphate(M-P) flame retardant was synthesized from melamine and phosphoric acid by the reaction of precipitation. The ignition test was carried out preparing hybrid flame retardant compound($H_bFRC$) consisting of organic M-P and inorganic Mg$(OH)_2$ as a flame retardant in the polyolefin resins. The flame retardancy and mechanical properties of flame retardant aluminum composite panel($H_bFRC$-ACP) were performed to investigate the possibility of the composite material, which was contained M-P, as a inner core for $H_bFRC$-ACP. For this study, the results of ignition test indicate that a char formation and drip suppressing effect, and combustion time reduced as the content of M-P increased. The limited oxygen index(LOI) values were measured 17.4vol% and 31.5vol% for LDPE only and $H_bFRC$-3(M-P content: 15wt%), respectively. And it was verified that the $H_bFRC$-3 was needed more oxygen quantity with the increase of M-P content when it combustion. Also, the results from thermogravimetric analysis were observed endothermic peak at $350^{\circ}C$ and $550^{\circ}C$, it was confirmed predominant thermal stability though the wide temperature range by the mixture of M-P and Mg$(OH)_2$. The LDPE-ACP (using only LDPE as a inner core), $35.13kW/m^2$ of heat release rate(HRR) and 13.43MJ/m2 of total heat release(THR) were measured while the $H_bFRC$-ACP, $10.44kW/m^2$ of HRR and 1.84MJ/m2 of THR were measured by results of cone calorimeter test. In case of $H_bFRC$-ACP, the average gas emission amount of CO and $CO_2$ could be decreased down to 25% and 20%, respectively, in comparison with LDPE-ACP. The mechanical properties such as tensile strength, bending strength and adhesion strength of $H_bFRC$-ACP were revealed slightly high values $54N/mm^2$, $152N/mm^2$ and 120N/25mm, respectively, compared with LDPE-ACP. It was confirmed that flame retardancy was improved with the synergy effect because of char formation by M-P and hydrolysis by Mg$(OH)_2$. The result of this study suggest that $H_bFRC$ can be applied for an adequate halogen free flame retardant composite material as a inner core for ACP.
Keywords
halogen free; hybrid flame retardant compound; melamine phosphate; magnesium hydroxide; aluminum composite panel;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 강호종, '새로운 무독성 난연제로서의 Melamine의 응용', 고분자과학과 기술, 제4권, 제1호, pp. 51-52, 1993
2 D. Feng, Z. Zhou and M. Bo, 'An Investigation of the Thermal Degradation of Melamine Phosphonite by XPS and Thermal Analysis Techniques', Polymer Degradation and Stability, Vol. 50, No.1, pp. 65-70, 1995   DOI   ScienceOn
3 김광국, '환경친화형 MP 및 KMP 합성과 난연Panel Core에의 응용', 안양대학교 환경공학과, pp. 6-7, 2005
4 곽성복, '콘칼로리미터와 TGA를 이용한 할로겐 계통의 난연제를 첨가한 폴리프로필렌수지의 난연성 및 열안정성에 관한 연구', 폴리머, 제24권, 제6호, pp. 777-786, 1999
5 속복기, 황택성, 구동철, '폴리우레탄 복합체의 무기난연재료 충전에 의한 난연 특성', 폴리머, 제31권, 제5호, pp. 404-409, 2007   과학기술학회마을
6 이민수, 김진환, '최신 난연재료 개발동향 : 고분자용 난연 첨가제의 기술개발 동향', 공업화학전망, 제8권, 제6호, pp. 21-35, 2005
7 D. W. Kang and J. Huh, 'Preparation and Properties of Fireproofing Polyolefin Compound Using Nano Clay', J. of Korean Oil Chemists' Soc., Vol. 20, No. 2, pp. 165-172, 2003   과학기술학회마을   ScienceOn
8 B. Li and J. He, 'Investigation of Mechanical Property, Flame Retardancy and Thermal Degradation of LLDPE-wood-fiber Composites', Polymer Degradation and Stability, Vol. 83, No. 2, pp. 241-246, 2004   DOI   ScienceOn
9 B. Marosfoi, S. Matko, P. Anna and G. Marosi, 'Fire Retarded Polymer Nanocomposites', Applied Physics, Vol. 6, No. 2, pp. 259-261, 2006
10 UL94 : The Standard for Safety of Flammability of Plastic Materials for Parts in Devices and Appliances testing, 1996
11 X. L. Wang, J. M. Jiang, S. L. Yang, J. H. Jin and G. Li, ' Polyamide 6에서 Cyclic Diphosphonate Ester와 Melamine의 난연 효과', 폴리머, 제32권, 제2호, pp. 125-130, 2008
12 C. Shimasaki, 'Effect of the Fire-retardant, Melamine, on the Combustion and the Thermal Decomposition of Polyamide-6, Polypropylene and Low-density Polyethylene', Polymer Degradation and Stability, Vol. 58, No. 1-2, pp. 171-180, 1997   DOI   ScienceOn
13 남병도, 장대홍, 최창용, 나상권, 나재운, '난연 고충격폴리스티렌 기계적 특성', 응용화학, 제12권, 제1호, pp. 5-8, 2008
14 ISO 4589 : Plastics-Determination of burning behaviour by oxygen index, 1996
15 C. A. Harper, 'Modern Plastics Handbook, 1st ed.', McGraw-Hill Professional, New York, pp. 756-824, 2000
16 ASTM D 1238 : Standard test method for melt flow rates of thermoplastics by extrusion plastometer, 2004
17 S. B. Kwak, J. D. Nam, J. H. Kim, J. S. Koh, and H. K. Choi, 'A Flammability Study of PP Thermoplastic Composite by using Cone Calorimeter', Applied Chemistry, Vol. 3, No. 1, pp. 25-28, 1999
18 C. J. Hilado, 'Flammability Handbook for Plastics, 4th ed.', Technomic Publishing Co., Pennsylvania, pp. 18-52, 1990
19 A. R. Horrocks and D. Price, 'Fire Retardant Materials', Woodhead Publishing Limited, Abington, pp. 12-56, 2001
20 홍선, 김필제, '최신 난연재료 개발동향 : 브롬화 난연제의 국제적 규제 동향과 대응방안', 공업화학전망, 제8권, 제6호, pp. 3-20, 2005
21 西沢 仁, '高分子の難燃化技術", シーエムシー出版', 東京, pp. 42-146, 1996
22 KS F ISO 5660-1 : 2002 콘칼로리미터법, 한국표준협회, 2002
23 A. I. Balabanovich, 'Thermal Decomposition Study of Intumescent Additives: Pentaerythritol Phosphate and Its Blend with Melamine Phosphate', Thermochimica Acta, Vol. 435, No. 2, pp. 188-196, 2005   DOI   ScienceOn
24 Pin Lv, 'Flammability and Thermal Degradation of Flame Retarded Polypropylene Composites Containing Melamine Phosphate and Pentaerythritol Derivatives', Polymer Degradation and Stability, Vol. 90, No. 3, pp. 523-534, 2005   DOI   ScienceOn
25 김석준, '첨가제; 난연 플라스틱 현황', 고분자과학과기술, 제6권, 제2호, pp. 118-127, 1995