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文摘
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利用X射线衍射仪、DSC和扫描电子显微镜研究了纳米SiO_2不同含量的PET/SiO_2复合材料在恒温条件下的结晶度、熔化温度和晶体形貌.结果发现,SiO_2纳米粒子含量对复合材料的结晶速度有很大影响;球晶尺寸与SiO_2纳米粒子添加量密切相关. |
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其他语种文摘
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PET/SiO_2 nanocomposites have been synthesized by direct polymerizing PET Monomer dispersed with organic modified silica nanocomposites. Under different crystallized time and crystallized temperature, the morphology and crystallization behavior of poly (ethylene terephthalate)/silica nanocomposites was studied. The morphology of nanocomposites isothermally crystallized was observed by SEM, The perfection of crystallized nanocomposites was analyzed by XRD. Tt is found that the weight percent of SiO_2 affects nanocomposites crystallization, the crystallinity of PET increases along with crystallization time. The melting properties of PET/silica nanocomposites was learned by DSC. The size of spherulites changes along with the mass percent of silica increasing. |
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来源
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高分子材料科学与工程
,2007,23(4):159-162 【核心库】
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关键词
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纳米复合材料
;
等温结晶
;
球晶
;
聚对苯二甲酸乙二醇酯
;
二氧化硅
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地址
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1.
中国科学院固体物理研究所, 中科院材料物理重点实验室, 安徽, 合肥, 230031
2.
中国科学院宁波材料技术与工程研究所, 浙江, 宁波, 315040
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-7555 |
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学科
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一般工业技术 |
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基金
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国家863计划
;
浙江省宁波市自然科学基金
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文献收藏号
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CSCD:2839946
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