新能源汽车电池包上盖专用阻燃聚丙烯的研制
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摘要
以聚丙烯(PP)为基体树脂,加入无卤膨胀型阻燃剂、增韧剂制备新能源汽车电池包专用阻燃PP材料,研究了阻燃剂、增韧剂种类及其含量对PP阻燃性能和力学性能的影响,以及阻燃剂对PP的耐水性及热稳定性的影响。结果表明,两种阻燃剂FR–1420和HF–900均能提高PP的阻燃性,当垂直燃烧等级达到V–0级时,FR–1420和HF–900的最低含量分别为20%和25%;添加FR–1420的PP的阻燃性、耐水性、热稳定性及力学性能均优于添加HF–900的体系;三种增韧剂体系POE8150,POEDF610,EPDM3745复配VMX6202均能提高阻燃PP的冲击强度,其中POEDF610性价比最高,当其含量为10%时,阻燃PP材料的冲击强度达到25.5kJ/m~2。采用该阻燃PP材料吸塑成型的新能源汽车电池包上盖各项性能可满足使用要求,达到客户的预期目标。
The flame retardant polypropylene(PP) for new energy automobile battery pack was prepared by adding the halogen-free intumescent flame retardant and toughener. The effects of flame retardants,tougheners and their contents on theflame retardancy and mechanical properties of PP,as well as the effects of flame retardants on the water resistance and thermal stability of PP were studied. The results show that both FR–1420 and HF–900 can improve the flame retardancy of PP. When the vertical combustion grade reaches V–0,the minimum contents of FR–1420 and HF–900 are 20% and 25% respectively. The flame retardancy,water resistance,thermal stability and mechanical properties of PP with FR–1420 are better than those with HF–900. The impact strength of flame retardant PP can be improved by POE8150,POEDF610 and EPDM3745 compounded with VMX6202. Among them,POEDF610 has the highest cost-performance ratio. When the content of POEDF610 is 10%,the impact strength of flame retardant PP reaches 25.5 kJ/m~2. The performance of the new energy automobile battery pack top cover by theflame-retardant PP absorbable molding can meet the use requirement,and it achieves the desired target of customers.
The flame retardant polypropylene(PP) for new energy automobile battery pack was prepared by adding the halogen-free intumescent flame retardant and toughener. The effects of flame retardants,tougheners and their contents on theflame retardancy and mechanical properties of PP,as well as the effects of flame retardants on the water resistance and thermal stability of PP were studied. The results show that both FR–1420 and HF–900 can improve the flame retardancy of PP. When the vertical combustion grade reaches V–0,the minimum contents of FR–1420 and HF–900 are 20% and 25% respectively. The flame retardancy,water resistance,thermal stability and mechanical properties of PP with FR–1420 are better than those with HF–900. The impact strength of flame retardant PP can be improved by POE8150,POEDF610 and EPDM3745 compounded with VMX6202. Among them,POEDF610 has the highest cost-performance ratio. When the content of POEDF610 is 10%,the impact strength of flame retardant PP reaches 25.5 kJ/m~2. The performance of the new energy automobile battery pack top cover by theflame-retardant PP absorbable molding can meet the use requirement,and it achieves the desired target of customers.
引文
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[13]杨美珠.不同增韧体系阻燃聚丙烯的制备和性能研究[J].塑料助剂,2010,83(5):23-27.Yang Meizhu.Study on preparation and properties of flame retardant PP toughened by different kind tougheners[J].Plastics Additives,2010,83(5):23-27.
[14]张乾.聚丙烯的增韧与聚酰胺的阻燃及扩链研究[D].上海:上海交通大学,2010.Zhang Qian.Toughening of polypropylene and chain extension as well as flame retardant modification of polyamide[D].Shanghai:Shanghai Jiao Tong University,2010.
[15]Liang J Z,Zhu B,Ma W Y.Morphology and mechanical properties of PP/POE/nano-CaCO3 composites[J].Polymer Composites,2016,37(2):539-546.
[2]何建浩,刘艳兵,卢俊康,等.一种新能源汽车的电池包壳体的制造方法及相应的电池包壳体:中国,CN106694841A[P].2016-12-30.He Jianhao,Liu Yanbing,Lu Junkang,et al.Manufacturing method of battery cladding shell for a new energy vehicle and its corresponding battery cladding shell:China,CN106694841A[P].2016-12-30.
[3]杨海,张风波,王建宜,等.一种新能源汽车电池包壳体及其制造方法:中国,CN107706328A[P].2017-08-30.Yang Hai,Zhang Fengbo,Wang Jianyi,et al.A new energy vehicle battery shell and its manufacturing method:China,CN107706328A[P].2017-08-30.
[4]金静,王昊,舒中俊.少量增容剂对膨胀阻燃PP/POE共混复合体系性能的影响[J].工程塑料应用,2016,44(12):26-31.Jin Jing,Wang Hao,Shu Zhongjun.Effects of small loading of compatibilizer on properties of intumescent flame retardant PP/POE blending composite system[J].Engineering Plastics Application,2016,44(12):26-31.
[5]Camino G,Costa L,Martinasso G.Intumescent fire-retardant systems[J].Polym Degrad Stab,1989,23:359-376.
[6]Camino G,Costa L,Luda di Cortemiglia M P.Overview of fire retardant mechanisms[J].Polymer Degradation and Stability,1991,33(2):131-154.
[7]Li Chen,Wang Yuzhong.A review on flame retardant technology in China:Part I.Deveploment of flame retardangts[J].Polymer for Advanced Technilogies,2010,21(1):1-26.
[8]危加丽,尹波,杨鸣波,等.无卤阻燃PP的制备[J].合成树脂及塑料,2011,28(3):10-12.Wei Jiali,Yin Bo,Yang Mingbo,et al.Preparation of halogen-free flame retardant PP[J].China Synthetic Resin and Plastics,2011,28(3):10-12.
[9]齐军.新型磷氮无卤阻燃剂的合成与应用研究[D].广州:广东工业大学,2016.Qi Jun.Study on the synthesis and application of novel phosphorous-nitrogen-containing halogen-free flame retardant[D].Guangzhou:Guangdong University of Technology,2016.
[10]夏建盟,杨友强,姜向新.高效耐水无卤阻燃聚丙烯材料研究[J].塑料工业,2015,43(10):108-112.Xia Jianmeng,Yang Youqiang,Jiang Xiangxin.Research on efficient waterproof halogen-free flame retardant polypropylene[J].China Plastics Industry,2015,43(10):108-112.
[11]俞纪贤.膨胀阻燃聚丙烯的增韧改性[D].合肥:合肥工业大学,2015.Yu Jixian.Toughening of intumescent flame retardants polypropylene[D].Hefei:Hefei University of Technology,2015.
[12]谭逸伦,邵偲淳,孙柳,等.无卤阻燃聚丙烯复合材料的制备及性能研究[J].塑料工业,2012,40(10):74-76.Tan Yilun,Shao Sichun,Sun Liu,et al.Preparation and properties of halogen-free flame retardant PP composites[J].China Plastics Industry,2012,40(10):74-76.
[13]杨美珠.不同增韧体系阻燃聚丙烯的制备和性能研究[J].塑料助剂,2010,83(5):23-27.Yang Meizhu.Study on preparation and properties of flame retardant PP toughened by different kind tougheners[J].Plastics Additives,2010,83(5):23-27.
[14]张乾.聚丙烯的增韧与聚酰胺的阻燃及扩链研究[D].上海:上海交通大学,2010.Zhang Qian.Toughening of polypropylene and chain extension as well as flame retardant modification of polyamide[D].Shanghai:Shanghai Jiao Tong University,2010.
[15]Liang J Z,Zhu B,Ma W Y.Morphology and mechanical properties of PP/POE/nano-CaCO3 composites[J].Polymer Composites,2016,37(2):539-546.