硫磺改性乳化沥青的制备及性能研究

发布时间：2018-03-10 19:46

  本文选题：硫磺　切入点：改性沥青　出处：《华东理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着大量高硫劣质原油的炼制及Claus硫磺回收工艺的日臻完善,硫磺产量大幅增加,使得硫磺改性沥青的研究与应用得到了越来越广泛的关注。由于硫磺改性沥青路面会产生环境污染,其应用受到了限制。而乳化沥青具有节约能源、环保经济、施工方便等优点。因此,开发新型的硫磺改性乳化沥青势在必行。本文研究了硫磺改性沥青的性能与反应温度和硫磺添加量的关系,结合红外光谱(IR)和凝胶色谱(GPC)等分析手段,探讨了硫磺改性沥青的机理,为后续硫磺改性乳化沥青的制备提供依据。本文通过实验确定了硫磺改性乳化沥青的制备工艺,并在合适的乳化配方下成功制备出一种硫磺改性乳化沥青。实验研究了乳化剂和稳定剂添加量、硫磺改性方式及硫磺添加量等条件对改性乳化沥青性能和储存稳定性的影响。结果表明,当乳化剂B用量为3%,阳离子聚丙烯酰胺添加量为0.45%,KC1添加量为1.5%,硫磺改性沥青温度为130℃及硫磺质量分数为10%时,制备的硫磺改性乳化沥青储存稳定性符合要求。本文制备了 SBR胶乳改性乳化沥青,通过蒸发残留物测试,研究了 SBR胶乳对沥青性能的影响规律,分析了 SBR胶乳的改性机理。在理论上分析了硫磺作为交联剂与SBR胶乳复合改性乳化沥青的可能性,推测硫磺SBR胶乳复合改性的机理,并通过实验将SBR胶乳引入到硫磺改性乳化沥青体系中,将复合改性乳化沥青的性能与单一的SBR胶乳改性乳化沥青和硫磺改性乳化沥青进行了比较,验证了复合改性的最终效果。
[Abstract]:With the refining of a large amount of low-quality crude oil with high sulfur content and the improvement of Claus sulfur recovery process, the sulfur production has increased significantly. The research and application of sulfur modified asphalt have been paid more and more attention. Due to the environmental pollution caused by sulfur modified asphalt pavement, its application is restricted. The emulsified asphalt has the advantages of saving energy, protecting environment and economy. Therefore, it is imperative to develop a new type of sulfur modified emulsified asphalt. In this paper, the relationship between the performance of sulfur modified asphalt and reaction temperature and sulfur content is studied, combined with infrared spectroscopy (IR) and gel chromatography (GPC), etc. The mechanism of sulfur modified asphalt is discussed in order to provide the basis for the subsequent preparation of sulfur modified emulsified asphalt. In this paper, the preparation process of sulfur modified emulsified asphalt is determined by experiments. A kind of sulfur modified emulsified asphalt was successfully prepared under the suitable emulsifying formula, and the amount of emulsifier and stabilizer was studied experimentally. The effects of sulfur modification mode and sulfur content on the properties and storage stability of modified emulsified asphalt were studied. When the amount of emulsifier B is 3, the amount of cationic polyacrylamide is 0.45 and the amount of KC1 is 1.5, the temperature of sulfur modified asphalt is 130 鈩，

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