Titanium carbide ceramic nanocrystals to enhance the physicochemical properties of natural rubber composites.
Titanium carbide ceramic nanocrystals to enhance the physicochemical properties of natural rubber composites.
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采用新型纳米碳化钛（TiC）作为填充材料，提高了天然橡胶（NR）的力学强度。将纳米TiC粒子与天然橡胶（NR）胶乳共混，得到NR/TiC母料，再与其它化学品通过密炼机进行固相共混，制备了纳米复合橡胶。以TiC为纳米填料制备的NR/TiC-0、NR/TiC-0.5、NR/TiC-1.0、NR/TiC-2.5和NR/TiC-5.0橡胶复合材料;并以炭黑（CB-330）为填料制备的NR/CB-1.0和NR/CB-5.0橡胶复合材料进行对比研究。根据拉伸测试的结果，NR/TiC-1.0复合材料显示出最高的拉伸值31.13 MPa，这表明与对照（NR/TiC-0（16.22 MPa））相比提高了92%;此外，与NR/CB-1.0和NR/CB-5.0的值相比分别提高了73%和63%。此外，扫描电子显微镜（SEM）分析显示，更好的分散性的NR/TiC-1.0复合材料相比，其他复合材料。动态力学分析（DMA）结果表明，NR/TiC-1.0复合材料在动态条件下具有最高的储能峰和最低的储能损耗峰。热重分析表明，在400 °C左右的NR降解温度下，NR/TiC-1.0复合材料的热稳定性上级其它复合材料。NR/TiC-1.0复合材料的硫化时间（t90）比其他复合材料甚至NR/CB复合材料都有明显的缩短，这将有利于工业界在轮胎类应用的硫化阶段节省能源。与工业上熟知的NR/CB复合材料相比，这些改进是显著的，并且远高于轮胎工业的工业上所需的最小参数。最终，这将为天然橡胶增强开辟一条独特的途径。采用新型纳米碳化钛（TiC）作为填充材料，提高了天然橡胶（NR）的力学强度。
The mechanical strength of natural rubber (NR) was enhanced by incorporating novel titanium carbide (TiC) nanocrystals as a filling material. The rubber nanocomposites were prepared through mixing TiC nanoparticles with NR latex and the resulting NR/TiC masterbatch was further mixed at the solid stage with other chemicals via internal mixing. The final rubber composites prepared using TiC as the nanofiller were denoted as NR/TiC-0, NR/TiC-0.5, NR/TiC-1.0, NR/TiC-2.5, and NR/TiC-5.0; moreover, a comparative study was conducted using carbon black (CB-330) as the filler and the composites were denoted as NR/CB-1.0 and NR/CB-5.0. As per the results of tensile tests, the NR/TiC-1.0 composite revealed the highest tensile value of 31.13 MPa and this indicated improvement by 92% compared to that of the control (NR/TiC-0 (16.22 MPa)); moreover, it indicated improvements by 73% and 63% compared to the values of NR/CB-1.0 and NR/CB-5.0, respectively. Moreover, scanning electron microscopy (SEM) analysis revealed a better dispersion of the NR/TiC-1.0 composite compared to the other composites. Furthermore, dynamic mechanical analysis (DMA) was conducted to observe the energy storage and loss properties at dynamic conditions; the results revealed that the highest storage peak and lowest loss peak were observed for the NR/TiC-1.0 composite. Also, thermogravimetric analysis revealed the superior thermal stability of the NR/TiC-1.0 composite to that of the others at the NR degradation temperature of around 400 °C. Importantly, the curing time (t90) of NR/TiC-1.0 was reduced considerably compared to that of the other composites even the NR/CB composites, which would be beneficial for industries to save energy at the curing stages of tire-like applications. The improvements were significant when compared to the industrially well-known NR/CB composites and well above the industrially required minimum parameters of the tire industry. Ultimately, this will open up a distinct avenue for natural rubber reinforcement. The mechanical strength of natural rubber (NR) was enhanced by incorporating novel titanium carbide (TiC) nanocrystals as a filling material.
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影响因子：
4.6
作者：
Chenal, Jean-Marc;Gauthier, Catherine;Bomal, Yves
通讯作者：
Bomal, Yves
影响因子：
3.9
作者：
Jayasinghe, J. M. A. R. B.;De Silva, R. T.;de Silva, Rohini M.;de Silva, K. M. Nalin;Mantilaka, M. M. M. G. P. G.;Silva, Vinod Asantha
通讯作者：
Silva, Vinod Asantha
影响因子：
2
作者：
Bansod, Naresh D.;Das, Chayan
通讯作者：
Das, Chayan
影响因子：
5.2
作者：
Chattopadhyay, Pijush Kanti;Basuli, Utpal;Chattopadhyay, Santanu
通讯作者：
Chattopadhyay, Santanu
影响因子：
5.1
作者：
Ismail, H;Jaffri, RM
通讯作者：
Jaffri, RM