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Multifunctional graphene nanofiller in flame retarded polybutadiene/chloroprene/carbon black composites
e-Polymers ( IF 3.7 ) Pub Date : 2021-01-01 , DOI: 10.1515/epoly-2021-0026
Alexander Battig 1 , Naïssa Abdou-Rahaman Fadul 1 , Daniele Frasca 1 , Dietmar Schulze 1 , Bernhard Schartel 1
Affiliation  

To curtail flammability risks and improve material properties, flame retardants (FRs) and fillers are mixed into rubbers. High loadings of aluminum trihydroxide (ATH) and carbon black (CB) are the most used FRs and reinforcing additive, respectively, in rubbers. To reduce loading without losing mechanical properties, partial substitution of ATH as well as CB by low amounts of multilayer graphene (MLG) nanoparticles is investigated. The high aspect ratio MLG is made of ten graphene sheets. In polybutadiene/chloroprene (BR/CR) nanocomposites 3 phr MLG replaced 15 phr CB and/or 3 phr ATH. Material and mechanical properties as well as fire behavior of the nanocomposites are compared to BR/CR with 20 phr CB both with and without 50 phr ATH. MLG appears as a promising nanofiller to improve the functional properties: replacement of CB improved rheological, curing, and mechanical properties; substitution of ATH improved nanocomposite properties without affecting flame retardancy.

中文翻译:

阻燃聚丁二烯/氯丁二烯/炭黑复合材料中的多功能石墨烯纳米填料

为了减少可燃性风险并改善材料性能,将阻燃剂(FRs)和填料混合到橡胶中。高含量的氢氧化铝(ATH)和炭黑(CB)是橡胶中最常用的FR和增强添加剂。为了减少负载而又不损失机械性能,研究了用少量的多层石墨烯(MLG)纳米颗粒部分取代ATH和CB。高纵横比MLG由十个石墨烯片制成。在聚丁二烯/氯丁二烯(BR / CR)中,用3 phr MLG代替15 phr CB和/或3 phr ATH的纳米复合材料。将纳米复合材料的材料和机械性能以及燃烧性能与含有和不含50 phr ATH的含20 phr CB的BR / CR进行了比较。MLG似乎是一种有望改善功能性能的纳米填料:替代炭黑可改善流变,固化和机械性能;取代ATH可改善纳米复合材料的性能,而不会影响阻燃性。
更新日期:2021-01-01
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