| PET/SiO_2纳米复合材料的力学性能和结晶性能研究 |
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| 引用本文： | 付红艳,曾晓飞,王国全,陈建峰.PET/SiO_2纳米复合材料的力学性能和结晶性能研究[J].北京化工大学学报(自然科学版),2010,37(2):34-38. |
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| 作者姓名： | 付红艳 曾晓飞 王国全 陈建峰 |
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| 作者单位： | 北京化工大学 1纳米材料先进制备技术与应用科学教育部重点实验室； 2材料科学与工程学院；3教育部超重力工程研究中心， 北京 100029 |
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| 摘 要： | 采用熔融共混法,将纳米二氧化硅(SiO2)添加到聚对苯二甲酸乙二醇酯(PET)中,制备出PET/SiO2纳米复合材料,并对其力学和结晶性能进行研究。结果表明,添加微量纳米SiO2能显著提高PET材料的力学性能,纳米SiO2添加量为0.2质量份数时,纳米SiO2在PET基体中分散均匀,复合材料综合力学性能最佳,与纯PET相比,PET/SiO2纳米复合材料的缺口冲击强度、拉伸强度、弯曲强度和弯曲弹性模量分别提高了18%,20%,11%,14%;随着纳米SiO2添加量的增加,PET/SiO2纳米复合材料的结晶度和结晶温度有明显的提高。
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| 关 键 词： | 纳米二氧化硅 聚对苯二甲酸乙二醇酯(PET) 熔融共混 冲击强度 结晶 |
| 收稿时间： | 2009-03-23 |
Study of mechanical and crystallization properties of polyethylene terephthalate/SiO_2 nanocomposites |
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| FU HongYan,ZENG XiaoFei,WANG GuoQuan,CHEN JianFeng.Study of mechanical and crystallization properties of polyethylene terephthalate/SiO_2 nanocomposites[J].Journal of Beijing University of Chemical Technology,2010,37(2):34-38. |
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| Authors: | FU HongYan ZENG XiaoFei WANG GuoQuan CHEN JianFeng |
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| Institution: | 1. Key Laboratory for Nanomaterials, Ministry of Education; 2. College of Materials Science and Engineering; 3. Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Polyethylene terephthalate(PET)/SiO_2 nanocomposites were prepared by means of melt-blending.The mechanical and crystallization properties of the nanocomposites were investigated.The results showed that the me-chanical properties were significantly improved by addition of nano-SiO_2.When the content of nano-SiO_2 was 0.2 parts per hundred resin,the notch impact strength,tensile strength,flexural strength and modulus of PET/SiO_2 nanocomposites increased by 18%,20%,11%,and 14%,respectively,when compared with unfilled PET.Transmission electron microscopy showed the nano-SiO_2 particles were dispersed on the matrix on a nanometer scale.Moreover,by incorporating SiO_2 nanoparticles into the PET matrix,the crystallinity and crystallization tem-perature of PET were increased. |
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| Keywords: | nano-SiO_2 polyethylene terephthalate melt-blending impact strength crystallization |
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