无卤阻燃PET热封膜的制备及性能研究
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摘要
以聚酯(PET)为树脂基体,采用阻燃剂三聚氰胺聚磷酸盐(MPP)与二乙基次膦酸铝(ADP)复配制备出MPP/ADP-PET阻燃热封膜,研究了2种阻燃剂配比对无卤阻燃PET热封膜的力学性能和阻燃性能的影响规律。结果表明,MPP与ADP复配阻燃的PET热封膜的力学性能及阻燃性能均优于单一MPP阻燃的PET热封膜。当MPP∶ADP质量比分别为8∶2、6∶4和5∶5的复配阻燃PET热封膜时,胶对胶贴合强度均远大于30 N/25 mm,且具有可断性,胶对导线粘接力都大于0.3 N/0.3mm,且极限氧指数为25.7%～27.7%,垂直燃烧水平均达到了UL-94 V-1级。
The MPP/ADP-PET flame retardant heat sealable films were prepared using polyester(PET) as the resin matrix, and melamine polyphosphate(MPP) and aluminum diethyl phosphinate(ADP) as the flame retardants. The effect of MPP : APP ratio on the mechanical properties and flame-retarding ability of the halogen-free flame retardant PET heat sealable films were investigated. The results show that the mechanical properties and flame-retarding properties of the MPP/ADP-PET heat sealable films are better than those of the MPP/PET heat sealable films. When the weight ratio of MPP-ADP is 8 : 2, 6-4 and 5 : 5, the bonding strength of glue to glue for MPP/ADP-PET heat sealable films is far more than 30 N/25 mm, and all three samples are breakable. The adhesive force of glue to wire of the three samples is more than0.3 N/0.3 mm. For flame retardant properties, the value of LOI is between 25.7 and 27.7%. All three samples can achieve V-1 rating in the UL-94 vertical burning test.
The MPP/ADP-PET flame retardant heat sealable films were prepared using polyester(PET) as the resin matrix, and melamine polyphosphate(MPP) and aluminum diethyl phosphinate(ADP) as the flame retardants. The effect of MPP : APP ratio on the mechanical properties and flame-retarding ability of the halogen-free flame retardant PET heat sealable films were investigated. The results show that the mechanical properties and flame-retarding properties of the MPP/ADP-PET heat sealable films are better than those of the MPP/PET heat sealable films. When the weight ratio of MPP-ADP is 8 : 2, 6-4 and 5 : 5, the bonding strength of glue to glue for MPP/ADP-PET heat sealable films is far more than 30 N/25 mm, and all three samples are breakable. The adhesive force of glue to wire of the three samples is more than0.3 N/0.3 mm. For flame retardant properties, the value of LOI is between 25.7 and 27.7%. All three samples can achieve V-1 rating in the UL-94 vertical burning test.
引文
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[11]Nguyen T H, Hoang D Q,Kim J.Effect of ammonium polyphosphate and melamine pyrophosphate on fire behavior and thermal stability of unsaturated polyester synthesized from poly(ethylene terephthalate)waste[J].Macromolecular Research,2018, 26(1):22-28.
[2]冯树铭.BOPET差异化和功能化的应用及发展[J].聚酯工业,2010, 23(3):5-10.
[3]张军,李仁海,唐建兴,等.无卤阻燃PBT共聚酯的制备及表征[J].合成技术及应用,2013, 28(2):9-12.
[4]杜雪娟.朗盛公司推出新型无卤阻燃聚酯[J].现代塑料加工应用,2018, 30(1):12.
[5]陈琳,吴嘉宁,倪延朋,等.苯酰亚胺结构对PET阻燃抗熔滴及抑烟的贡献[J].高分子学报,2017, 48(7):1207-1214.
[6]Wang J N, Chen G Y, Su X Y, et al. Intercalated montmorillonite by cyclotriphosphazene imidazole derivative and its thermal properties used in polyester[J]. Fire and material s, 2017, 41(4):323-338.
[7]Zhang J B,Wang X L,He Q X,et al.A novel phosphorus-containing p o l y(1, 4-cyclohexylenedimethyleneterephthalate)copolyester:Synthesis, thermal stability,flammaloility and pyr.olysis behavior[J].Polymer Degradation and Stability, 2014, 108(10):12-22.
[8] Lu S Y,Hamerton I.Recent developments in the chemistry of halogen-free flame retardant polymers[J]. Progress in Polymer Science, 2002,27(8):1661-1712.
[9]Chen M J,Shao Z B,Wang X L. Halogen-free flame-retardant flexible polyurethane foam with a novel nitrogen-phosphorus flame retardant[J]. Industrial&Engineering Chemistry Research,2012,51(29):9769-9776.
[10]Zhong Y, Wu W, Wu R, et al.The flame retarding mechanism of the novolac as char agent with the fire retardant containing phosphorousnitrogen in thermoplastic poly(ether ester)elastomer system[J].Polymer Degradation and Stability,2014, 105(1):166-177.
[11]Nguyen T H, Hoang D Q,Kim J.Effect of ammonium polyphosphate and melamine pyrophosphate on fire behavior and thermal stability of unsaturated polyester synthesized from poly(ethylene terephthalate)waste[J].Macromolecular Research,2018, 26(1):22-28.