| 嵌段齐聚物修饰纳米SiO2对PET结晶性能的影响 |
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| 引用本文： | 孙文建,王瑶,唐建国,黄震,刘继宪,黄林军,王彦欣,焦吉庆,王薇,郑鹤蛟,李爱民,庄洪伟,Laurence A Belfiore.嵌段齐聚物修饰纳米SiO2对PET结晶性能的影响[J].材料导报,2015,29(12):84-88. |
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| 作者姓名： | 孙文建 王瑶 唐建国 黄震 刘继宪 黄林军 王彦欣 焦吉庆 王薇 郑鹤蛟 李爱民 庄洪伟 Laurence A Belfiore |
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| 作者单位： | 青岛大学化学科学与工程学院，纤维新材料国家重点实验室培育基地，青岛 266000 |
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| 基金项目： | 国家自然科学基金，山东省自然科学基金，山东省科技攻关项目，青岛市国际合作资助项目，国家外专局高端外国专家项目 |
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| 摘 要： | 采用溶液聚合法在纳米 SiO2表面接枝两种不同性质的齐聚物聚乙二醇(PEG)和聚对苯二甲酸乙二酯低聚物(LMPET),通过 FTIR、1 H-NMR、XPS 和 HR-TEM 对其结构形貌进行表征。采用熔融共混制备 PET 纳米复合材料,并利用 DSC 和 XRD 对改性纳米 SiO2对 PET 结晶性能的影响进行研究。结果表明,LMPET 通过 PEG 成功接枝到 SiO2表面,粒径尺寸为40~50 nm；纳米 SiO2可作为成核剂诱导 PET 的结晶提高结晶速率,当添加量为2%(质量分数)时,结晶温度得到明显提高。
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| 关 键 词： | 聚对苯二甲酸乙二醇酯 纳米二氧化硅 溶液聚合 熔融共混 结晶性能 |
Effect of Nano-SiO2 Modified by Block Oligomer on the Crystallization Property of PET |
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| SUN Wenjian,WANG Yao,TANG Jianguo,HUANG Zhen,LIU Jixian,HUANG Linjun,WANG Yanxin,JIAO Jiqing,WANG Wei,ZHENG Hejiao,LI Aimin,ZHUANG Hongwei and Laurence A Belfiore.Effect of Nano-SiO2 Modified by Block Oligomer on the Crystallization Property of PET[J].Materials Review,2015,29(12):84-88. |
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| Authors: | SUN Wenjian WANG Yao TANG Jianguo HUANG Zhen LIU Jixian HUANG Linjun WANG Yanxin JIAO Jiqing WANG Wei ZHENG Hejiao LI Aimin ZHUANG Hongwei and Laurence A Belfiore |
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| Affiliation: | State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000,State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000,State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000,State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000,State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000,State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000,State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000,State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000,State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000,State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000,State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000,State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000 and State Key Laboratory Breeding Base of New Fiber Materials,College of Chemistry Science and Engineering, Qingdao 266000 |
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| Abstract: | The surface of nano-silica was modified by the oligomer chains PEG and LMPET by solution polymerization, and its structure morphology was confirmed by FTIR,1H-NMR, XPS and HR-TEM. PET nanocomposite was prepared via melt blending, the effect on crystallization behavior of PET was studied by DSC and XRD. The results indicated that LMPET was successfully linked onto SiO2 surface through PEG, and the average size of nanopaticle is about 40-50 nm. It was found that organic silicas could act as nucleating agents in polymer matrix and facilitate the crystallization rate, when the content of modified SiO2 was about 2wt%, the crystallization temperature of PET nanocomposite was improved significantly. |
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| Keywords: | ploy(ethylene terephthalate) nano-silica solution polymerization melt blending crystallization property |
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