Photocrosslinking of Intumescent Halogen-free Flame-retardant LLDPE/EVA/IFR Blends
Photocrosslinking of the halogen-free flame retardant linear low density polyethylene /poly(ethylene-co-vinyl acetate) (LLDPE/EVA) blends with the intumescent flame retardant (IFR) of phosphorous-nitrogen compound (NP) in the presence of photoinitiator and multifunctional crosslinker and the characterization of related properties have been investigated successfully. The results from the gel content and heat extension rate (HER) show that the LLDPE/EVA/IFR blends filled with NP are readily photocrosslinked by UV-irradiation of 5 s to obtain a gel content of above 75％ and reach the HER value of about 50 ％. The data from the LOI, UL-94, water-resistant, and mechanical measurements show that photocrosslinking can considerably enhance the mecnanical, flame retardant, and water-resistant properties of the LLDPE/EVA/NP samples.
linear low density polyethylene poly(ethylene-co-vinyl acetate) intumescent flame retardant photocrosslinking related properties
Baojun QU Wenbao BAO Lei YE Qianghua WU Shujun MA Zhenshan JIA
Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei Heilongjiang World Cable Company Limited, Jiamusi 154004, CHINA
国际会议
哈尔滨
英文
200-203
2009-07-19（万方平台首次上网日期，不代表论文的发表时间）