Study on Preparation and Properties of La2O3/MC Nylon Nanocomposites

被引：0
作者：
林轩 [1 ,2 ]
张平民 [1 ]
尹周谰 [1 ]
陈启元 [1 ]
机构：
[1] College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China  2. Chemistry Department, Zhanjiang Normal College, Zhanjiang 524048, China
来源：
Journal of Rare Earths | 2005年 / 06期
关键词：
MC nylon; nano-La2O3; nanocomposites; in situ polymerization; mechanical properties; rare earths;
D O I：
暂无
中图分类号：
O611.3 [性质];
学科分类号：
070301 ; 081704 ;
摘要：
A series of La2O3/MC nylon nanocomposites were prepared via in situ polymerization. The effects of content of nano-La2O3 on the mechanical properties of nanocomposites were studied. Dispersion of nano-La2O3 in MC nylon matrix was observed with SEM. The crystal structure of nanocomposites was characterized by means of XRD. SEM analysis shows that La2O3 nanoparticles are uniformly dispersed in MC nylon matrix and little clustering exists when the content of nano-La2O3 is lower than 1%, however, when the content of nano-La2O3 is more than 1%, it begins to cluster. XRD analysis indicats that nano-La2O3 does not change the crystal structure of MC nylon. Mechanical properties tests show that the tensile strength, elongation at break, impact strength, flexural strength, and flexural modulus of nanocomposites first increase then decrease as the content of nano-La2O3 is increased. When the content of nano-La2O3 is 0.5%, the tensile strength and elongation at break of nanocomposites reach maximum, which are 17.9% and 52.1% higher respectively than those of MC nylon. When the content of nano-La2O3 is 1.0%, the impact strength, flexural strength and flexural modulus of nanocomposites reach maximum, which are 36.6%, 12.7% and 16.3% higher respectively than those of MC nylon.
引用
收藏
页码：680 / 684 +640
页数：6
相关论文
共 15 条
  • [1] Preparation and properties of rare earth oxide/polymide hybrids. Bian L J,Qian X F,Yin F J,et al. Polymer Testing . 2002
  • [2] MC Nylon Practical Technique. Wang Yuhui. . 1994
  • [3] Polystyrene toughened and strengthened by ultrafine Al2O3particles. Xiong Chuanxi,Wen Dijiang,Pi Zhengjie. Polymer Materials Science and Engineering . 1994
  • [4] Synthesis of polymer/IT-TaS2layered nanocomposites. Enomoto HK,Lwenwe MM. Materials Research Bulletin . 2002
  • [5] Research on the mechanical properties of MC nylon/Al2O3nanocom-posites. Zhen Liyin,Zhao Linxin,Neu Lanqing. Chinese Engineering Plastic Application . 2004
  • [6] Preparation and optical properties of Cdse/polymer nanocomposites. Trindade T,Neves MC,Barros A V. Scripta Materialia . 2000
  • [7] Strength-ning&toughening mechanismof nanocomposites in poly-mer radical. Zhang Yihe,Fu Shaoyun,Li Guoyiu,et al. High-Tech.Correspondence . 2004
  • [8] New ad-vance in the modification of MC nylon. Sun Xiandong,Sun Xudong,Zhang Weibo. Chinese Ap-plication of Engineering Plastics . 2003
  • [9] Prop-erties of PA-6/clay polymeric nanocomposites. Zhou Wanlee,Yu Demei,Guo Xiusheng,et al. Poly-mer Materials Science and Engineering . 2004
  • [10] Mechanistic investigation of the preparation of polymer/ceramic nano-composites. Gonsalves K E,Chen X H,Baraton MI. Nanostructured Materials . 1997
12