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摘要：煤沥青具有资源丰富、价格低廉等优点。但其残炭率低，可以通过改性来提高其残炭率。在尝试和总结之前学者的研究基础上，设计新的改性剂和配方工艺，以催化氢化的方法将煤沥青原料合成成为具有各向异性的中间相结构，实现中间相沥青的催化合成，并对产物进行检测和表征，为中间相沥青的静电纺丝提供性能和结构都合适的前驱体。以交联剂（本论文分别采用了三聚甲醛、甲醛、对羟基苯甲醛、硫磺和聚甲醛）为改性剂，分别在三氯化铝和对甲苯磺酸的作用下对煤沥青进行了改性研究。采用电磁搅拌加热器对原料沥青进行加热熔化和改性；采用马弗炉测量改性后煤沥青的结焦值。结果表明，改性后的煤沥青出现了各向异性的中间相结构，结焦值也得到了一定的提高。因此，改性后的煤沥青有望作为优质的碳材料基体前驱体。8385
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关键字：改性剂、煤沥青、结焦值、中间相沥青
The influence of Crosslinker on properties of coal tar pitch modified by thermal polymerization
Abstract: Coal tar has the advantages of abundant resources, low price, etc. It has low carbon residue, but can be improved by modified. On the basis of try and summarize the research of previous scholars, designed of the new modifiers and formulation process . In the way of catalytic hydrogenation , make coal pitch synthesis to have anisotropic mesosphere structure ,then detection and characterization of the product. To provide both performance and structure suitable precursor for electrostatic spinning of mesophase pitch. Take crosslinking(This paper uses trioxane, formaldehyde, p-hydroxybenzaldehyde, sulfur and POM) as modifier, in the action each of Aluminum trichloride and P-toluenesulfonic acid, take some research of coal tar modification. Using electromagnetic stirring heater for heating the raw material melting and modified bitumen, and using muffle furnace measured coking value of modified coal pitch. The results show that modified coal tar pitch appeared anisotropic mesophase structure, and the coking value has also been improved to some extent. Therefore, modified coal tar pitch is expected as a high-quality carbon material matrix precursor.
Key Words: Modifier、Coal tar pitch、Coke value 、mesosphere pitch.
目录
1. 绪论 5
1.1 概述 5
1.2.1 研究意义 5
1.2.2 研究目的 5
1.2.3 研究范围 5
1.2.4 技术要求 6
1.2 发展概况 6
1.2.5 利用中间相沥青制备炭纤文 6
1.2.6 中间相沥青用作粘接剂 6
1.2.7 中间相沥青在耐火材料中的应用 7
1.2.8 利用中间相沥青制备电极材 7
1.3 改性方法 8
1.3.1 热解合成法 8
1.3.2 加氢改性合成法 8
1.3.3 催化合成法 9
1.3.4 交联合成法 9
1.4 指导思想 9
1.5 主要任务 10
2. 实验部分 11
2.1 问题的提出 11
2.2 方案的拟定 11
2.3 理论基础 11
2.4 实验方法和内容 12
2.4.1 实验方法 12
2.4.2 实验内容 12