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1、本科毕业论文题题目目环保沥青制备工艺参数研究学学 院院: :专专 业业: :学学 号号: :学生姓名学生姓名: :指导教师指导教师: :日日 期期: :摘 要本论文拟以煤沥青为原料，采用热聚合闪蒸的方法制备环保沥青。通过调整热聚的时间、温度，调整闪蒸的温度与时间来调控产物沥青的族组分，即 、 相的含量，总结归纳热聚时间、温度与 、 相含量，以及在相同热聚条件下闪蒸的温度、时间与 、 相含量的关联规律性。同时对制备的环保沥青的结构、性能进行了较为系统的研究，用元素分析仪、场发射扫描电子显微镜和综合差热分析仪等手段对制得的环保沥青的元素组成、形貌以及热性能进行了分析表征。研究表明，热聚合工艺参数直
2、接影响热聚合产物的残炭率和环保沥青的产率，在所研究的温度范围内，获得的最佳的热聚合工艺参数为：热聚温度 350，反应时间4h。元素分析表明，制得的环保沥青在元素组成上基本与 CARBORES P 一致，C/H比高于 CARBORES P；热分析表明，制得的环保沥青在第一阶段即开始失重，但在400以后失重率远远低于 CARBORES P；SEM 分析表明，制得的环保沥青内中间相小球已经开始形成，但与 CARBORES P 相比，生长有待进一步加强。关键词： 改质沥青；中间相；环保；含碳耐火材料IAbstractThis paper attempts to coal tar pitch as th
3、e raw material, by thermal polymerization - flash mesophase pitch was prepared. By adjusting the heat polymerization time, temperature, adjust the flash to control the temperature and time of the product asphalt group components, namely , , -phase content, summarizes heat polymerization time, temper
4、ature and , , phase content , and at the same flash of heat accumulation under the conditions of temperature, time and , , phase content of the related laws. At the same time on the preparation of the intermediate material structure and properties of a more systematic study, using Elemental analysis
5、, field emission scanning electron microscope and integrated DTA obtained by means of thermal polymerization were elements of asphalt, charcoal The morphology and thermal properties were characterized.Studies show that the thermal polymerization process parameters directly affect the thermal polymer
6、ization products of the coking value and the yield of mesophase pitch, in the studied temperature range, obtained the best parameters for the thermal polymerization process: reaction temperature 350 , reaction for 4h . Element analysis showed that the mesophase pitch obtained in the basic elements o
7、f composition consistent with CARBORES P, C/H ratio was higher than CARBORES P; thermal analysis showed that the obtained mesophase pitch in the first stage of starting weight loss, but After the weight loss at 400 for far less than CARBORES P; SEM analysis showed that the mesophase pitch obtained i
8、n the intermediate phase in the formation of the ball has started, but compared with CARBORES P, growth to be further strengthened.Key words：Modified pitch; Mesophase; Green; Carbon refractoriesII目 录第 1 章 绪论.11.1 前言. 11.2 煤沥青简介.11.2.1 煤沥青分类.11.2.2 煤沥青的分组组成.21.2.3 煤沥青中的 TI 和 QI .21.2.4 炭材料生产过程中煤沥青的流变
9、规律.31.2.5 煤沥青粘结剂的热解缩聚行为.31.3 中间相沥青简介.41.3.1 中间相沥青的研究现状及生成机理.41.3.2 中间相沥青的性质.51.3.3 中间相沥青反应动力学研究.61.3.4 影响中间相形成的因素.71.3.5 改性沥青的制备.81.3.6 改性沥青的应用研究进展.91.4 改性沥青作为结合剂在耐火材料中的应用.111.4.1 含碳耐火材料用结合剂的性能要求.111.4.2 目前粘结剂沥青质量存在的不足.121.4.3 中间相沥青作为结合剂的应用前景.121.5 本论文的提出.13第 2 章 实验部分.142.1 原料.142.1.1 原料沥青.142.1.2 化学试剂.142.2 实验方案.
