活性染料印花用增稠劑的合成

材料科學論文編號:CL025  論文字數:8978,頁數:19

  
目  錄
中文摘要 I
英文摘要 II
目錄 III
1. 緒論 1
 1.1 概述 1
 1.2 增稠劑的增稠原理 2
1.3 增稠劑的國內外現狀 3
 1.4 增稠劑的發展方向 4
2. 實驗部分 6
 2.1 實驗原料與儀器 6
 2.1.1 實驗原料 6
 2.1.2 實驗儀器 6
 2.2 實驗方案 7
     2.2.1 交聯劑的合成 7
     2.2.2 中和液制備 7
     2.2.3 增稠劑制備 7
     2.2.4 產物性能測試 8
3. 實驗結果與討論 9
 3.1 乳化劑用量的影響 9
 3.2 單體用量的影響 9
 3.3 PH值的影響 10
 3.4 引發劑用量對增稠性能的影響 10
 3.5 轉相劑用量的影響 11
 3.6 反應溫度的影響 11
4．總結與展望 13
致謝 14
參考文獻 15

摘要：本文研究增稠劑的合成過程中原料使用的量和反應體系的相關因素，得出以下結論:乳化劑濃度低分散效果差，易產生凝聚而結成塊狀產物，乳化劑濃度高，產物平均粒徑小。單體濃度增加，聚合速率加快，體系粘度增大，單體濃度達到一定程度，若繼續增大，由于聚合熱不易分散，反應不易控制，甚至會引起爆聚。PH低會降低乳化體系的穩定性，甚至無法乳化，最終形成水包油。隨著引發劑用量增加，增稠劑黏度增大。另一方面，引發劑用量增加，反應加劇，鏈轉移也會導致聚合物交聯密度增大，從而使黏度下降。白漿打開程度在一定范圍內，隨TX-10的升高而減少。聚合物的增稠性能對溫度的變化非常敏感。溫度過低，會導致反應速率和反應活性的下降，溫度過高，反應劇烈，易生成大顆粒固體并引起暴聚生成塊狀的粘性物質。
關鍵詞：增稠劑；合成; 使用量；影響

Abstract: This paper presents a study of synthetic thickener used by the amount of raw materials and the response of the system and related factors of low concentration of emulsifier, easy to produce effect, condense and forming massive high concentration of emulsifier, average size small product.Monomer concentration, polymerization rate increased speed, the system viscosity, monomer concentration degree, if continue to increase due to dispersion polymerization, heat, not easy to control, and even cause explosive.PH lower will reduce the stability of the emulsion system, emulsion, eventually forming cannot even oil-in-water.With the increase of initiator, thickener viscosity.On the other hand, initiator, reaction intensified, chain transfer will result in polymer crosslinking density increases, thereby viscosity drops.White paste open degree within a certain range, TX - 10 and reduce.The thickening properties of polymer are very sensitive to changes in temperature.Temperature is too low, will cause the reaction rate and reactivity, high temperature, and reaction severe spinal into big particles, solid and cause massive cluster generate critical goo
Keywords：Thickener；Synthesis；Usage；Influence