石油基油作为分散助剂对磁流变弹性体物理化学特性的影响。

Effects of Petroleum-Based Oils as Dispersing Aids on Physicochemical Characteristics of Magnetorheological Elastomers.

作者信息

Muhammad Zaki Norizatie, Yunus Nurul Azhani, Yusoff Muhamad Shakir, Mazlan Saiful Amri, Abdul Aziz Siti Aishah, Izni Nor Aziyatul, Bahiuddin Irfan

机构信息

Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia.

Engineering Materials and Structures (eMast) iKohza, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia.

出版信息

Materials (Basel). 2021 Nov 19;14(22):7026. doi: 10.3390/ma14227026.

DOI:10.3390/ma14227026

PMID:34832425

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8617985/

Abstract

This paper investigated the effects of petroleum-based oils (PBOs) as a dispersing aid on the physicochemical characteristics of natural rubber (NR)-based magnetorheological elastomers (MREs). The addition of PBOs was expected to overcome the low performance of magnetorheological (MR) elastomers due to their inhomogeneous dispersion and the mobility of magnetic particles within the elastomer matrix. The NR-based MREs were firstly fabricated by mixing the NR compounds homogeneously with different ratios of naphthenic oil (NO), light mineral oil (LMO), and paraffin oil (PO) to aromatic oil (AO), with weight percentage ratios of 100:0, 70:30, 50:50, and 30:70, respectively. From the obtained results, the ratios of NO mixed with low amounts of AO improved the material physicochemical characteristics, such as thermal properties. Meanwhile, LMO mixed the AO led to the best results for curing characteristics, microstructure observation, and magnetic properties of the MREs. We found that the LMO mixed with a high content of AO could provide good compatibility between the rubber molecular and magnetic particles due to similar chemical structures, which apparently enhance the physicochemical characteristics of MREs. In conclusion, the 30:70 ratio of LMO:AO is considered the preferable dispersing aid for MREs due to structural compounds present in the oil that enhance the physicochemical characteristics of the NR-based MREs.

摘要

本文研究了石油基油（PBOs）作为分散助剂对天然橡胶（NR）基磁流变弹性体（MREs）物理化学特性的影响。添加PBOs有望克服磁流变（MR）弹性体因磁颗粒在弹性体基质中分散不均和流动性差而导致的性能低下问题。首先，通过将NR化合物与不同比例的环烷油（NO）、轻质矿物油（LMO）、石蜡油（PO）和芳烃油（AO）均匀混合来制备NR基MREs，其重量百分比比例分别为100:0、70:30、50:50和30:70。从所得结果来看，与少量AO混合的NO比例改善了材料物理化学特性，如热性能。同时，LMO与AO混合对MREs的硫化特性、微观结构观察和磁性能产生了最佳效果。我们发现，由于化学结构相似，高含量AO与LMO混合能使橡胶分子与磁颗粒之间具有良好的相容性，这显然增强了MREs的物理化学特性。总之，LMO:AO比例为30:70被认为是MREs的优选分散助剂，因为该油中存在的结构化合物增强了NR基MREs的物理化学特性。