文档介绍：毕业设计（论文）任务书
设计（论文）题目：LLDPE紫外光接枝MAH的研究
系部：材料工程系 专业：高分子材料与工程
班级：0220741 指导老师：李振中
学生：聂波波 专业负责人：孟美俊
设计（论文）的主要任务及目标
以线性对产物接枝率和凝胶含量的影响时，发现随着二苯甲***（BP）用量的增加，接枝 率出现了一个极大值（BP用量0. 6%,%）。有效的证明了二苯甲***（BP） 在反应过程中的作用（既促进接枝反应，又促进交联反应）。在实验的最后，我们又 对实验产物和纯的聚合物进行了红外光谱表征，通过红外光谱图分析比较，发现产物 的红外光图谱在1795 cnf'处出现了一个明显的吸收峰，而在纯聚合物的红外光谱图 上是没有的，这是马来酸酎（MAH）基团的特征吸收峰，有力的证明了接枝产物 LLDPE-g-MAH的存在，证明了接枝反应的发生。通过对实验结果的综合比分析，得出 光照时间30s,马来酸酎（MAH） 2%,二苯甲***（BP） %为最佳实验配方。
关键词：光照时间，马来酸酎，二苯甲***，接枝率，凝胶含量
ABSTRACT
:This dissertation was designed to study grafting polymerization of maleic anhydride(MAH) with linear low density polyethylene (LLDPE) as substrate and benzophenone(BP) as the product of grafting rate (Gx), Gel content (Gel) for the presentation. The results showed
: irradiation time for the impact rate onto larger, irradiation time too short will cause incomplete, thus allowing the product onto the lower rate; irradiation time response will be favorable to the cause whatever response rate low and began making the product uses high-tech. . In studying Malay anhydride (MAH) and the rate of consumption of petroleum content onto the impact, although an increase was found Malay anhydride (MAH) consumption can increase the rate of graft, can reduce petroleum content, but only increase Malay anhydride (MAH) will cause many adverse effects. Through increased Malay anhydride (MAH) usage rate began to increase, from economic considerations are very effective. Secondly, the Malay anhydride (MAH) in being heated conditions very easy evaporation, and Malay anhydride (MAH) gas is a hazardous gas, many organ on the human body, especially the eyes are great harm, and increase Malay anhydride (MAH) usage, the change will only make working conditions more difficult. Furthermore, in a temperature above 150 degrees, Malay anhydride (MAH) will gather reactions are taking place, not only wasted Malay anhydride (MAH), but are turning yellow gather product makes products significantly impact th