期刊論文
| 學年 | 106 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2018-07-04 |
| 作品名稱 | Epoxy toughening using self-assembled nanofibrillar scaffolds formed by organogels |
| 作品名稱（其他語言） | |
| 著者 | Wei-Chi La; Ruey-Yi Hsia |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Polymer 147, p.74-80 |
| 摘要 | We propose a facile method for preparing toughening epoxies using self-assembled scaffolds formed by organogels. 1,3:2,4-dibenzylidene sorbitol (DBS) is a sugar derivative that is capable of self-assembling into a 3-D nanofibrillar network at relatively low concentrations in certain organic solvents to form organogels. In this work, we induced the formation of such nanofibrils in the most frequently used epoxy monomer, di-glycidyl ether of bisphenol A (DGEBA). Subsequently, we cured DGEBA in the presence of a curing agent with various amounts of DBS. The resulting materials were transparent and homogeneous epoxies with DBS nanofibrillar networks. The DBS nanofibrils in the epoxy matrix acted as reinforcing materials that enhanced the hardness and stiffness of the epoxies. Moreover, due to the entangled network structures, the toughness of the epoxies increased with increasing amounts of DBS (the maximum being an approximately 5-fold improvement). In addition, the thermal stability of the epoxies was improved by the addition of DBS, including the glass transition temperatures and thermal degradation temperatures. |
| 關鍵字 | Epoxy;Organogel;Toughness |
| 語言 | en_US |
| ISSN | |
| 期刊性質 | 國外 |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | NLD |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/115499 ) |