聚合物氧化石墨烯纳米复合材料燃烧性能研究.doc
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聚合物氧化石墨烯纳米复合材料燃烧性能研究,聚合物/氧化石墨烯纳米复合材料燃烧性能研究 包括读书报告，外文翻译译文自己原创的毕业论文，已经通过校内系统检测，重复率低，仅在本站独家出售，大家放心下载使用摘要氧化石墨烯是近几年来发展起来的一种新型二维无机纳米材料，自从其发现以来，氧化石墨烯在化学、物理、材料、电子等各个领域显示了广阔的应用前景。尤其是它们极高的机械强...
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聚合物/氧化石墨烯纳米复合材料燃烧性能研究
包括读书报告，外文翻译译文
自己原创的毕业论文，已经通过校内系统检测，重复率低，仅在本站独家出售，大家放心下载使用
摘要
氧化石墨烯是近几年来发展起来的一种新型二维无机纳米材料，自从其发现以来，氧化石墨烯在化学、物理、材料、电子等各个领域显示了广阔的应用前景。尤其是它们极高的机械强度、出色的导电和导热性能，以及丰富的原料来源，使其能作为一种理想的无机纳米填料来制备聚合物复合材料。但是目前为止，氧化石墨烯材料的大规模制备并应用于火灾安全方面，以及如何将氧化石墨烯均匀地分散到聚合物基体中并且优化氧化石墨烯与聚合物基体之间的界面作用力一直是科学界及工业界尚待解决的难题。本学位论文围绕着这些问题进行了一系列研究。具体研究内容及结果如下：
1、采用改进的Hummers法制备氧化石墨烯;
2、采用浸滞、包裹和烘干等步骤制备氧化石墨烯包裹海绵纳米复合材料，并研究其阻燃性能。
2、采用共混法制备PP/氧化石墨烯纳米物复合材料，并研究其阻燃性能。
实验结果表明，采用改进的Hummers法制备了石墨烯片层堆积厚度约为5-6nm，为5-6层的石墨烯。燃烧实验结果表明，随着包裹海绵的氧化石墨烯浓度的提升，其阻燃性能改善越明显。当采用0.003g/mL对海绵进行浸泡包裹得到的石墨烯包裹海绵纳米复合材料在阻燃方面得到明显提高，但当浓度高于0.003g/mL后，对海绵的阻燃性能影响较小。另外，对PP/氧化石墨烯聚合物复合材料的垂直燃烧测试和极限氧指数测试都发现，氧化石墨烯的引入对其阻燃性能的提高具有促进作用。
关键词：氧化石墨烯；海绵；包裹；纳米复合材料；阻燃性能
ABSTRACT
Graphene oxide is novel two-dimensional inorganic nano-materials developed recently, it has great promise applications in the fields of chemistry, physics, material science, electronics, and so on, since its first successful fabrication. Graphene oxide is ideal inorganic nanofillers for reinforcement of polymer composite materials because of its ultrahigh mechanical property, excellent electrical and thermal conductivity, and abundant resources (graphite). However, they are still obstacles to be resolved in both academia and industry, including the mass preparation of graphene oxide, the applications into fire safety and the homogeneous incorporation of graphene oxide into polymer matrix and optimizing the interfacial interactions between them. With the aim of addressing these problems, numerous researches have been done in this thesis. The details of research are listed as follows:
1. Graphene oxide was prepared by a modified Hummers method.
2. Graphene oxide coating sponges nanocomposites were preparated by immersion, coating and drying processes, and their flame retardant properties were investigated.
3. GO/PP nanocomposites were prepared by melt blending method, and their fire retardant properties were studied.
From the results, the average stacking height of sheet Lc (the crystalline thickness of the (002) facet), was estimated to be ~5-6 nm, corresponding to no more than 5-6 graphene layers. The experiment results of combustion show that the fire retardant properties were improve obviously with increasing concentration of graphene oxide. When the concentration of graphene oxide was 0.003 g/mL, the fire retardant properties of graphene oxide coating sponge nanocomposites were increased remarkably. However, when the concentration reaches to a specific level, the effect of graphene oxide could be neglected for the combustion properties. In addition, the GO plays a positive role in the enhancement of the fire retardant properties of PP /GO nanocomposites from both UL-94 and LOI.
KEYWORDS: graphene oxide; sponges; coating; nanocomposites; fire retardant properties
目 录
摘要 v
ABSTRACT vi
缩略词对照表 vii
第一章 绪论 1
1.1 引言 1
1.2 无卤阻燃技术的现状和研究进展 1
1.2.1 传统膨胀阻燃体系 2
1.2.2 新型膨胀阻燃体系 3
1.2.3 协同阻燃技术 4
1.2.4 微胶囊化阻燃技术 6
1.2.5 纳米复合阻燃技术 7
1.3 氧化石墨烯的制备及聚合物/氧化石墨烯纳米复合材料阻燃性能研究 9
1.3.1 氧化石墨烯的制备方法 10
1.3.2 氧化石墨烯的结构 11
1.3.3 氧化石墨烯的性质 12
1.3.4 氧化石墨烯聚合物纳米复合材料的制备方法 13
1.3.5 聚合物阻燃性能和阻燃机理研究 14
1.4 研究目标及意义 16
1.5 研究思路与研究内容 17
1.5.1 研究思路 17
1.5.2 研究内容 17
第二章 氧化石墨烯及其聚合物纳米复合材料的制备与阻燃性能测试 19
2.1 引言 19
2.2 实验中所用药品和仪器 19
2.3实验操作步骤及过程 21
2.3.1 氧化石墨烯的制备 21
2.3.2 氧化石墨烯的剥离 24
2.3.3 氧化石墨烯包裹海绵纳米复合材料的制备和燃烧实验 25
2.3.4 PP/氧化石墨烯纳米复合材料的制备及燃烧性能测试 26
2.4 氧化石墨烯表征及其复合材料阻燃性能测试方法 28
2.4.1扫描电镜（SEM）形貌观察 28
2.4.2 X-射线衍射分析 28
2.4.3透射电镜(TEM)形貌观察 29
2.4.4拉曼光谱仪测试 29
2.4.5极限氧指数测试（LOI） 29
2.4.6垂直燃烧测试（UL-94） 29
第三章 氧化石墨烯及其聚合物纳米复合材料阻燃性能研究 31
3.1氧化石墨烯的表征 31
3.1.1 石墨、氧化石墨烯的XRD测试结果 31
3.1.2石墨、氧化石墨烯的拉曼图谱结果和分析 32
3.1.3氧化石墨烯的扫描电镜照片分析 34
3.1.4氧化石墨烯洗涤前后透射电镜照片分析 34
3.2氧化石墨烯包裹海绵纳米复合材料..
包括读书报告，外文翻译译文
自己原创的毕业论文，已经通过校内系统检测，重复率低，仅在本站独家出售，大家放心下载使用
摘要
氧化石墨烯是近几年来发展起来的一种新型二维无机纳米材料，自从其发现以来，氧化石墨烯在化学、物理、材料、电子等各个领域显示了广阔的应用前景。尤其是它们极高的机械强度、出色的导电和导热性能，以及丰富的原料来源，使其能作为一种理想的无机纳米填料来制备聚合物复合材料。但是目前为止，氧化石墨烯材料的大规模制备并应用于火灾安全方面，以及如何将氧化石墨烯均匀地分散到聚合物基体中并且优化氧化石墨烯与聚合物基体之间的界面作用力一直是科学界及工业界尚待解决的难题。本学位论文围绕着这些问题进行了一系列研究。具体研究内容及结果如下：
1、采用改进的Hummers法制备氧化石墨烯;
2、采用浸滞、包裹和烘干等步骤制备氧化石墨烯包裹海绵纳米复合材料，并研究其阻燃性能。
2、采用共混法制备PP/氧化石墨烯纳米物复合材料，并研究其阻燃性能。
实验结果表明，采用改进的Hummers法制备了石墨烯片层堆积厚度约为5-6nm，为5-6层的石墨烯。燃烧实验结果表明，随着包裹海绵的氧化石墨烯浓度的提升，其阻燃性能改善越明显。当采用0.003g/mL对海绵进行浸泡包裹得到的石墨烯包裹海绵纳米复合材料在阻燃方面得到明显提高，但当浓度高于0.003g/mL后，对海绵的阻燃性能影响较小。另外，对PP/氧化石墨烯聚合物复合材料的垂直燃烧测试和极限氧指数测试都发现，氧化石墨烯的引入对其阻燃性能的提高具有促进作用。
关键词：氧化石墨烯；海绵；包裹；纳米复合材料；阻燃性能
ABSTRACT
Graphene oxide is novel two-dimensional inorganic nano-materials developed recently, it has great promise applications in the fields of chemistry, physics, material science, electronics, and so on, since its first successful fabrication. Graphene oxide is ideal inorganic nanofillers for reinforcement of polymer composite materials because of its ultrahigh mechanical property, excellent electrical and thermal conductivity, and abundant resources (graphite). However, they are still obstacles to be resolved in both academia and industry, including the mass preparation of graphene oxide, the applications into fire safety and the homogeneous incorporation of graphene oxide into polymer matrix and optimizing the interfacial interactions between them. With the aim of addressing these problems, numerous researches have been done in this thesis. The details of research are listed as follows:
1. Graphene oxide was prepared by a modified Hummers method.
2. Graphene oxide coating sponges nanocomposites were preparated by immersion, coating and drying processes, and their flame retardant properties were investigated.
3. GO/PP nanocomposites were prepared by melt blending method, and their fire retardant properties were studied.
From the results, the average stacking height of sheet Lc (the crystalline thickness of the (002) facet), was estimated to be ~5-6 nm, corresponding to no more than 5-6 graphene layers. The experiment results of combustion show that the fire retardant properties were improve obviously with increasing concentration of graphene oxide. When the concentration of graphene oxide was 0.003 g/mL, the fire retardant properties of graphene oxide coating sponge nanocomposites were increased remarkably. However, when the concentration reaches to a specific level, the effect of graphene oxide could be neglected for the combustion properties. In addition, the GO plays a positive role in the enhancement of the fire retardant properties of PP /GO nanocomposites from both UL-94 and LOI.
KEYWORDS: graphene oxide; sponges; coating; nanocomposites; fire retardant properties
目 录
摘要 v
ABSTRACT vi
缩略词对照表 vii
第一章 绪论 1
1.1 引言 1
1.2 无卤阻燃技术的现状和研究进展 1
1.2.1 传统膨胀阻燃体系 2
1.2.2 新型膨胀阻燃体系 3
1.2.3 协同阻燃技术 4
1.2.4 微胶囊化阻燃技术 6
1.2.5 纳米复合阻燃技术 7
1.3 氧化石墨烯的制备及聚合物/氧化石墨烯纳米复合材料阻燃性能研究 9
1.3.1 氧化石墨烯的制备方法 10
1.3.2 氧化石墨烯的结构 11
1.3.3 氧化石墨烯的性质 12
1.3.4 氧化石墨烯聚合物纳米复合材料的制备方法 13
1.3.5 聚合物阻燃性能和阻燃机理研究 14
1.4 研究目标及意义 16
1.5 研究思路与研究内容 17
1.5.1 研究思路 17
1.5.2 研究内容 17
第二章 氧化石墨烯及其聚合物纳米复合材料的制备与阻燃性能测试 19
2.1 引言 19
2.2 实验中所用药品和仪器 19
2.3实验操作步骤及过程 21
2.3.1 氧化石墨烯的制备 21
2.3.2 氧化石墨烯的剥离 24
2.3.3 氧化石墨烯包裹海绵纳米复合材料的制备和燃烧实验 25
2.3.4 PP/氧化石墨烯纳米复合材料的制备及燃烧性能测试 26
2.4 氧化石墨烯表征及其复合材料阻燃性能测试方法 28
2.4.1扫描电镜（SEM）形貌观察 28
2.4.2 X-射线衍射分析 28
2.4.3透射电镜(TEM)形貌观察 29
2.4.4拉曼光谱仪测试 29
2.4.5极限氧指数测试（LOI） 29
2.4.6垂直燃烧测试（UL-94） 29
第三章 氧化石墨烯及其聚合物纳米复合材料阻燃性能研究 31
3.1氧化石墨烯的表征 31
3.1.1 石墨、氧化石墨烯的XRD测试结果 31
3.1.2石墨、氧化石墨烯的拉曼图谱结果和分析 32
3.1.3氧化石墨烯的扫描电镜照片分析 34
3.1.4氧化石墨烯洗涤前后透射电镜照片分析 34
3.2氧化石墨烯包裹海绵纳米复合材料..
