有机硅PDMS对PBT/IFR/GF复合材料性能的影响
|
摘要
采用高分子量的聚二甲基硅氧烷(PDMS)母粒HY-GT002作为阻燃协效剂,以次磷酸盐类复合物TF9309和三聚氰胺氰尿酸盐MCA复配构成膨胀型阻燃剂(IFR),通过熔融共混法制备聚对苯二甲酸丁二醇酯(PBT)/IFR/PDMS无卤阻燃30%玻纤增强复合材料。对复合材料的力学性能、电性能、燃烧性、极限氧指数(LOI)以及接触角进行测试,对比分析PDMS用量对PBT/IFR/GF复合材料力学性能、电性能、阻燃性和表面能的影响。结果表明,PDMS在适当的添加量下可进一步提高PBT/IFR/GF的阻燃性能、氧指数、电性能和力学性能,同时复合材料与水的接触角变大,表面自由能降低,介电强度提升。PDMS起到了协同阻燃的作用,可有效降低复合材料中IFR的用量,1%的PDMS和15%的IFR进行复配,其阻燃效果与单独添加18%的IFR相当,LOI提高到40. 2%,0. 8 mm阻燃达到UL94 V-0,介电强度37 k V/mm,复合材料的综合性能最佳。
Taking high molecular weight polydimethylsiloxane( PDMS) master batch HY-GT002 as flame retardant synergist,phosphate compound TF9309 compounded with melamine cyanuric acid salt to form expansion type flame retardant( IFR), and prepared poly butyl glycol terephthalate( PBT)/IFR/PDMS halogen-free flame retardant 30% glass fiber reinforced composite materials by melt blending. The mechanical property,electrical property,combustion property,ultimate oxygen index( LOI) and contact angle of the composite were tested,and the effects of PDMS dosage on the mechanical property, electrical property,flame retardance and surface energy of PBT/IFR/GF composite were compared and analyzed. The results show that PDMS can further improve the flame retardant property, oxygen index, electrical property and mechanical property of PBT/IFR/GF with appropriate addition amount. Meanwhile, as the contact angle between the composite material and water increases,the surface free energy decreases,and the dielectric strength increases. PDMS plays a synergetic flame retardant role,which could reduce the amount of IFR in the composite efficiently. The flame retardant efficiency of 1% PDMS and 15% IFR combined composites is the same with 18% IFR added. And LOI could be improved to 40. 2%,the flame retardant could reach 0. 8 mm UL94 V-0,dielectric strength is 37 kV/mm,and the composite has the best comprehensive performance.
Taking high molecular weight polydimethylsiloxane( PDMS) master batch HY-GT002 as flame retardant synergist,phosphate compound TF9309 compounded with melamine cyanuric acid salt to form expansion type flame retardant( IFR), and prepared poly butyl glycol terephthalate( PBT)/IFR/PDMS halogen-free flame retardant 30% glass fiber reinforced composite materials by melt blending. The mechanical property,electrical property,combustion property,ultimate oxygen index( LOI) and contact angle of the composite were tested,and the effects of PDMS dosage on the mechanical property, electrical property,flame retardance and surface energy of PBT/IFR/GF composite were compared and analyzed. The results show that PDMS can further improve the flame retardant property, oxygen index, electrical property and mechanical property of PBT/IFR/GF with appropriate addition amount. Meanwhile, as the contact angle between the composite material and water increases,the surface free energy decreases,and the dielectric strength increases. PDMS plays a synergetic flame retardant role,which could reduce the amount of IFR in the composite efficiently. The flame retardant efficiency of 1% PDMS and 15% IFR combined composites is the same with 18% IFR added. And LOI could be improved to 40. 2%,the flame retardant could reach 0. 8 mm UL94 V-0,dielectric strength is 37 kV/mm,and the composite has the best comprehensive performance.
引文
[1]高盼,黄小东,杨锦飞.PBT阻燃研究进展[C].襄阳:2014年全国阻燃学术年会,2014.
[2]雷祖碧,王浩江,王飞,等.高性能无卤阻燃PBT复合材料的研制[J].合成材料老化和应用,2015,44(3):38-41.
[3]许博,钱立军.阻燃PBT用磷系阻燃剂的研究进展[J].工程塑料应用,2016,44(1):119-124.
[4]应毅.对阻燃剂市场的思考和展望[J].盐业与化工,2014,43(10):3-5.
[5]李玉芳,伍小明.无卤阻燃剂的研究开发进展[J].塑料制造,2006(4):78-83.
[6]王德花,李荣勋,刘光烨.塑料膨胀阻燃技术的研究进展[J].塑料助剂,2008(3):9-13.
[7]梁晓坤,袁霞,王伟玲,等.有机硅对LLDPE/MH/有机硅无卤阻燃复合体系性能的影响[J].塑料,2015,44(4):66-68.
[8]吴金坤.硅酮系阻燃剂及其阻燃技术[J].化工新型材料,2000(9):12-15.
[9]谷国团,张治军,党鸿辛.低自由能固体表面的制备及其应用[J].化学进展,2002,14(3):159-164.
[10]姜承永.有机硅脱模剂生产及应用技术[J].精细与专用化学品,2010,18(7):1-6.
[11]张臣.有机硅阻燃剂在聚酯中的应用研究进展[J].广东化工,2010,37(4):6-8.
[12]贾修伟,刘治国.硅系阻燃剂研究进展[J].化工进展,2003,22(8):818-822.
[13]唐帅,钱志国,曹金波,等.一种高效无卤阻燃PBT复合材料的制备及性能[J].工程塑料应用,2016,44(11):27-31.
[14]张利利,刘安华.磷硅阻燃剂协同效应及其应用[J].塑料工业,2005(s1):203-205.
[15]缪广春,杨永兵,陈强.新型有机硅阻燃成炭剂的热性能及成炭机理的研究[J].塑料工业,2014,42(8):101-104.
[16]王哲,张利萍,林祥竖,等.塑料用有机硅材料的研究进展[J].塑料工业,2011,39(s1):64-68.
[2]雷祖碧,王浩江,王飞,等.高性能无卤阻燃PBT复合材料的研制[J].合成材料老化和应用,2015,44(3):38-41.
[3]许博,钱立军.阻燃PBT用磷系阻燃剂的研究进展[J].工程塑料应用,2016,44(1):119-124.
[4]应毅.对阻燃剂市场的思考和展望[J].盐业与化工,2014,43(10):3-5.
[5]李玉芳,伍小明.无卤阻燃剂的研究开发进展[J].塑料制造,2006(4):78-83.
[6]王德花,李荣勋,刘光烨.塑料膨胀阻燃技术的研究进展[J].塑料助剂,2008(3):9-13.
[7]梁晓坤,袁霞,王伟玲,等.有机硅对LLDPE/MH/有机硅无卤阻燃复合体系性能的影响[J].塑料,2015,44(4):66-68.
[8]吴金坤.硅酮系阻燃剂及其阻燃技术[J].化工新型材料,2000(9):12-15.
[9]谷国团,张治军,党鸿辛.低自由能固体表面的制备及其应用[J].化学进展,2002,14(3):159-164.
[10]姜承永.有机硅脱模剂生产及应用技术[J].精细与专用化学品,2010,18(7):1-6.
[11]张臣.有机硅阻燃剂在聚酯中的应用研究进展[J].广东化工,2010,37(4):6-8.
[12]贾修伟,刘治国.硅系阻燃剂研究进展[J].化工进展,2003,22(8):818-822.
[13]唐帅,钱志国,曹金波,等.一种高效无卤阻燃PBT复合材料的制备及性能[J].工程塑料应用,2016,44(11):27-31.
[14]张利利,刘安华.磷硅阻燃剂协同效应及其应用[J].塑料工业,2005(s1):203-205.
[15]缪广春,杨永兵,陈强.新型有机硅阻燃成炭剂的热性能及成炭机理的研究[J].塑料工业,2014,42(8):101-104.
[16]王哲,张利萍,林祥竖,等.塑料用有机硅材料的研究进展[J].塑料工业,2011,39(s1):64-68.