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Structure and properties of compatibilized recycled polypropylene/recycled polyamide 12 blends with cellulose fibers addition

机译:与纤维素纤维的相容性再循环聚丙烯/再生聚酰胺12共混物的结构和性质

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This research was aimed to develop engineering thermoplastic composites based on recycled plastics and cellulose fibers in order to provide eco-friendly sustainable parts that meet certain requirements for automotive industry and to use recycled plastics for economic benefits. The composite networks were prepared using recycled PP, recycled PA12, two different maleic anhydride functionalized polypropylenes (PP-g-MA) and cellulose fiber. The loading of cellulose fibers was varied between 5 and 20 wt%. Based on the results of mechanical tests a substantial improvement was detected in terms of tensile and flexural modulus which showed that cellulose fibers could be used for reinforcing of stiffness of recycled polymer blends. It was also noticed that using PP-g-MA type of compatibilizers played an important role on the mechanical characteristics of polymer blends. The incorporation of cellulose into the compatibilized PP/PA12 blends resulted in higher storage modulus and shear viscosities than those of neat PP, PA12, and PP/PA12 blends at low frequencies and shear rates, respectively. Phase morphology of polymer blends and cellulose fibers-filled composites became more fine, uniform, and stable with addition of PP-g-MA. Fourier transform infra-red (FTIR) was used to confirm the interaction observed. It is obvious that cellulose reinforced, compatibilized recycled polymer blends can be a good alternative where better mechanical properties under high temperature are required in the automotive industry. This opportunity will help to reduce the cost and the effects of environmental issues. POLYM. COMPOS., 39:3556-3563, 2018. (c) 2017 Society of Plastics Engineers
机译:该研究旨在基于再生塑料和纤维素纤维开发工程热塑性复合材料,以便提供环保可持续件,满足汽车行业的某些要求,并使用回收塑料进行经济效益。使用再循环的PP,再循环PA12,两种不同的马来酸酐官能化聚丙烯(PP-G-MA)和纤维素纤维制备复合网络。纤维素纤维的负载在5和20wt%之间变化。基于机械测试的结果,在拉伸和弯曲模量方面检测到显着改善,其显示纤维素纤维可用于加强再循环聚合物共混物的刚度。还注意到,使用PP-G-MA型增容剂对聚合物共混物的机械特性起着重要作用。将纤维素掺入相容化的PP / PA12混合物中,导致储存模量和剪切粘度高于纯PP,PA12和PP / PA12在低频和剪切速率下共混物。聚合物共混物和纤维素纤维填充复合材料的相位形态变得更加细腻,均匀,并且加入PP-G-MA。傅里叶变换红外线(FTIR)用于确认观察到的相互作用。显而易见的是,纤维素加强的相容性再循环聚合物共混物可以是一种良好的替代方案,在汽车工业中需要在高温下的更好的机械性能。这个机会将有助于降低成本和环境问题的影响。聚合物。 Compos。,39:3556-3563,2018。(c)2017年塑料工程师协会

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