摘要本文通过溶剂超声法和机械搅拌法制备了石墨插层化合物(GIC),以 XRD 分析为手段, 探讨溶剂种类和 ZnO 加入量对溶剂超声法 GIC 结构的影响,研究了插层试剂、搅拌时间、搅 拌速度等工艺条件对机械搅拌法 GIC 结构的影响,并用刚果红法考察了这两类 GIC 对 PVC 热稳定性能的改性效果。结果表明:与溶剂超声法相比,机械搅拌法制得的 GIC 晶粒更小, 层间距更大,溶剂乙二醇、DMF、DMSO 的插层效果依次增强,插层试剂 tween-80、NP-10、 1631 的插层效果较好,其中以 tween-80 为插层试剂制得的 GIC 的 d(0 0 2)达到了 3。35Å;随 着搅拌强度(搅拌速度和搅拌时间)的增加,GIC 的 d(0 0 2)逐渐增大;向 PVC 中添加晶粒较 小或层间距明显增大的 GIC,用刚果红法测定 PVC 试样的热稳定性,发现 GIC 的晶粒越小, 对 PVC 热稳定性的改性效果越好;层间距增大,对 PVC 热稳定性改性效果显著增强。88278
英文摘要This article prepare graphite intercalation compounds(GIC) through solvent ultrasonic method and mechanical stirring method, with XRD analysis method, to explore the effect of solvent and the amount of ZnO on the structure of GIC solvent by ultrasonic method, studied the intercalation reagent, stirring time, stirring speed, stirring conditions influence on the structure of GIC machine and, by the Congo red method was used to investigate the modification effect of two kinds of prepared by the process of GIC on the thermal stability of PVC。 The results show that, compared with the solvent by ultrasonic method, GIC mechanical stirring method had smaller grain size, larger layer spacing, DMF, DMSO, ethylene glycol solvent stripping effect were enhanced, inserted layer effect layer reagent Tween-80, NP-10 and 1631 good, with Tween-80 as intercalation reagent prepared GIC crystal a distance reached 3。35; with the stirring intensity (stirring speed and time) increased, GIC D (002) increased gradually; adding grain is smaller or the layer spacing increased significantly from GIC to PVC, determination of thermal stability of PVC samples by Congo
red method, found that the GIC grain is smaller, the better the effect of modification on the thermal stability of PVC; the interlayer spacing increases, the thermal stability of PVC modified effect was significantly enhanced。
关键词:石墨插层化合物 ;PVC ;热稳定性
Keyword: Graphite intercalation compounds ;PVC ;thermal stability
目 录
一、文献综述 5
1。1 石墨插层化合物的发现、性质、分类及制备 5
1。1。1 石墨插层化合物的发展简史 5
1。1。2 石墨插层化合物的分类 5
1。1。3 石墨插层化合物源-于,优W尔Y论L文.网wwW.youeRw.com 原文+QQ75201,8766制备方法综述 7
1。2 PVC 材料的发展及应用 8
1。2。1 PVC 材料的发展、性质及应用 8
1。2。2 PVC 在实际应用中存在的问题及常见的解决办法 9
1。3 石墨插层化合物对 PVC 热稳定性的影响 10
1。3。1 石墨插层化合物改善 PVC 热稳定性的原理 10
1。3。2 热稳定性测定方法综述 10
1。4 选题背景及主要研究内容 12
二、实验部分 12 石墨插层化合物的制备及其对PVC热稳定性的影响:http://www.youerw.com/huaxue/lunwen_157387.html