The rheological, thermostable, and mechanical properties of polypropylene/fullerene C60 nanocomposites with improved interfacial interaction
The rheological, thermostable, and mechanical properties of polypropylene/fullerene C60 nanocomposites with improved interfacial interaction
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DOI：
10.1002/pen.23091
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发表时间：
2012-07
影响因子：
3.2
通讯作者：
D. Wan;Yujie Wang;Xin Wen;J. Qiu;Zhiwei Jiang;Haiying Tan;T. Tang
中科院分区：
文献类型：
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作者：
D. Wan;Yujie Wang;Xin Wen;J. Qiu;Zhiwei Jiang;Haiying Tan;T. Tang
采用熔融自由基原位反应法制备了聚丙烯（PP）/C60纳米复合材料。结果表明，PP/C_（60）纳米复合材料的松弛时间增加是由于C_（60）与PP大自由基发生反应，形成长链支化或交联结构所致。热重分析（TGA）结果表明，PP/C60纳米复合材料的热稳定性得到了提高。PP/C60纳米复合材料的起始分解温度和活化能受未反应C60含量的强烈影响。与相同含量的PP/C60纳米复合材料（不含过氧化物）相比，过氧化物的加入改善了PP/C60纳米复合材料的界面相互作用，使PP/C60纳米复合材料的拉伸强度、杨氏模量、弯曲强度、弯曲模量和冲击强度均明显提高。Polym.工程科学，2012. (C)2012年塑料工程师学会
Polypropylene (PP)/C60 nanocomposites with improved interfacial interaction were prepared via in situ melt radical reaction. It was found that the relaxation time of PP/C60 nanocomposites containing peroxide increased due to the reaction between C60 and PP macroradicals and the formation of long chain branched or crosslinking structure. Thermogravimetric analysis (TGA) results showed that the thermal stability of PP/C60 nanocomposites was enhanced. The initial decomposition temperatures and activation energy of PP/C60 nancomposites were strongly influenced by the content of unreacted C60. Because of the improved interfacial interaction, PP/C60 nanocomposites containing peroxide showed obvious increase in tensile strength, Young' modulus, flexural strength, flexural modulus, and impact strength, compared to PP/C60 nanocomposites (without peroxide) containing the same content of C60. POLYM. ENG. SCI., 2012. (C) 2012 Society of Plastics Engineers