【摘要】 使用锥形量热仪(Cone Calorimeter,简称CONE)系统地研究了无机氢氧化物的种类及用量、阻燃协效剂、炭黑和增塑剂等对三元乙丙橡胶燃烧特性的影响,并分析了燃烧产物的形貌,揭示了它们在EPDM燃烧过程中的作用。结果表明,高填充氢氧化物的EPDM胶料适用于制备低烟无卤阻燃橡胶材料;添加红磷和硼酸锌可促进胶料燃烧时的成炭行为,有助于提升阻燃性,但会增大发烟量;加入炭黑有助于提升胶料多项阻燃性能,加入增塑剂不利于胶料的阻燃性。更多还原

【Abstract】 Effects of the types and content of inorganic hydroxides,synergistic flame retardants(red phosphorus and zinc borate),carbon black and plasticizing agent(paraffin oil) on the combustion characteristic of EPDM were systematically researched by using Cone Calorimeter,and the morphologies of combustion products were also analyzed to reveal their roles of the additives during the combustion process of EPDM.The results showed that the EPDM blends filled with a large amount of hydroxides were suited to prepare the halogen-free flame-retardant blends;The carbon-forming behavior of the blends during the combustion process and the flame proofness could be developed by adding red phosphorus and zinc borate,at the same time the more smoke was produced.The flame-retardant properties were developed by adding carbon black.The flame retardant were not developed by adding the plasticizing agent.更多还原