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Properties of phosphorus nitrogen aluminum synergistic flame retardant low smoke halogen-free polyolefin materials
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Songjin WU1, Guannan TIAN2, Hongrui HE1, Xiaobo LIU2
Insulating Materials | 2023, 56(4) : 22 - 27
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Insulating Materials | 2023, 56(4): 22-27
• Material Research •
Properties of phosphorus nitrogen aluminum synergistic flame retardant low smoke halogen-free polyolefin materials
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Songjin WU1, Guannan TIAN2, Hongrui HE1, Xiaobo LIU2
Affiliations
  • 1Changyuan Electronics (Dongguan) Co., Ltd., Dongguan 523793, China
  • 2Shenzhen Woer Heat-Shrinkable material Co., Ltd., Shenzhen 518100, China
Published: 2023-04-20 doi: 10.16790/j.cnki.1009-9239.im.2023.04.005
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Ethylene-vinyl acetate copolymer/ethylene-α-olefin copolymer (EVA/POE) was used as the base material, and phosphorus-nitrogen halogen-free flame retardant (HF-601AE) compounded with surface modified aluminum hydroxide (ATH) was used as the flame retardant system, a halogen-free flame retardant polyolefin material for heat shrinkable tube was prepared by melt mixing method. The variation of limiting oxygen index, electrical properties, and mechanical properties of the composites under different ratios were studied, and the flame retardant mechanism of composites was investigated by thermo-gravimetric analysis (TGA) and the morphology characterization of combustion residue carbon. The results show that and the 2# sample prepared with 50 phr polyolefin materials, 35 phr flame retardant HF-601AE, and 20 phr ATH has the best mechanical properties, and the tensile strength is 7.1 MPa, the elongation at break is 502.86%. The limiting oxygen index is 37.2%, which meets the requirements of EN45545-2 R22 HL3 flame retardant grade. The thermogravimetric rate at 371.5℃ reaches -18.11%/min, the carbon residue is low after combustion, and there are no holes and pores in the carbon layer, which indicate that the comprehensive properties are the best.

limiting oxygen index  /  halogen-free flame retardant  /  phosphorus-nitrogen flame retardant  /  aluminum hydroxide
Songjin WU, Guannan TIAN, Hongrui HE, Xiaobo LIU. Properties of phosphorus nitrogen aluminum synergistic flame retardant low smoke halogen-free polyolefin materials[J]. Insulating Materials, 2023 , 56 (4) : 22 -27 . DOI: 10.16790/j.cnki.1009-9239.im.2023.04.005
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doi: 10.16790/j.cnki.1009-9239.im.2023.04.005
  • Receive Date：2022-04-15
  • Online Date：2025-11-21
  • Published：2023-04-20
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  • Received：2022-04-15
  • Revised：2022-06-13
Affiliations
    1Changyuan Electronics (Dongguan) Co., Ltd., Dongguan 523793, China
    2Shenzhen Woer Heat-Shrinkable material Co., Ltd., Shenzhen 518100, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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