Effect of modified Mg 2 B 2 O 5 w on mechanical and friction properties of oil‐containing monomer casting nylon
Effect of modified Mg 2 B 2 O 5 w on mechanical and friction properties of oil‐containing monomer casting nylon
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DOI：
10.1002/app.48856
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发表时间：
2020-07
影响因子：
3
通讯作者：
Q. Feng;Fan Wang;Yuxin Wang;Q. Zhang;Yuexin Wang
中科院分区：
文献类型：
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作者：
Q. Feng;Fan Wang;Yuxin Wang;Q. Zhang;Yuexin Wang
采用甲苯-2，4-二异氰酸酯（TDI）和脂肪胺（正十二胺（D）和正十八胺（O））对Mg 2B 2 O 5 w进行改性，并将其用于含油单体浇铸尼龙（OMC尼龙）中，研究了改性Mg 2B 2 O 5 w对OMC尼龙复合材料力学性能和摩擦性能的影响。复合材料的力学性能和摩擦性能得到了显著改善。添加0.15wt%的TDI-D-Mg 2B 2 O 5 w或TDI-O-Mg 2B 2 O 5 w分别导致拉伸强度增加21%和20%，弯曲强度增加53%和52%。此外，摩擦系数降低了近60%和58%，磨损量降低了约84%和80%。复合材料的磨损表面光滑，证实了Mg 2B 2 O 5 w的抗磨作用。晶须与基体之间通过氢键形成的界面结合是提高复合材料力学性能的主要原因。这项工作提供了一个简单的方法来设计耐磨聚合物复合材料，具有显着的潜力，在工程机械行业。© 2019 Wiley Periodicals，Inc. J.应用聚合物Sci.2020，137，48856.
The Mg2B2O5w modified by toluene‐2, 4‐diisocyanate (TDI) and fatty amine (n‐dodecylamine(D) orn‐octadecylamine (O)) was used in oil‐containing monomer casting (OMC) nylon, and the effect of modified Mg2B2O5w on mechanical and friction properties of OMC nylon composites was investigated. The significant improvement of the mechanical and friction properties of composites was observed. The addition of 0.15 wt% TDI‐D‐Mg2B2O5w or TDI‐O‐Mg2B2O5w resulted in 21 and 20% growth in the tensile strength, 53 and 52% increase in the flexural strength, respectively. Additionally, nearly 60 and 58% reduction in the friction coefficient, about 84 and 80% decrease in the abrasion quantity. Furthermore, the worn surface of composites exhibited smooth, which confirmed the antiwear effect of Mg2B2O5w. The improvement was attributed to the interfacial adhesion between whiskers and matrix by hydrogen bonds. This work provided a facile approach to the design of wear‐resistant polymer composites that hold significant potential in construction machinery industry. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2020,137, 48856.