| STUDIES ON EPOXY RESINS MODIFIED WITH POLY (BUTYLENE TEREPHTHALATE)-b-POLY (TETRAMETHYLENE GLYCOL) |
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| 引用本文： | 王霞,赵炳燚,李贞宜,余云照. STUDIES ON EPOXY RESINS MODIFIED WITH POLY (BUTYLENE TEREPHTHALATE)-b-POLY (TETRAMETHYLENE GLYCOL)[J]. 高分子科学, 1997, 0(1): 84-91 |
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| 作者姓名： | 王霞 赵炳燚 李贞宜 余云照 |
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| 作者单位： | Institute of Chemistry，Academia Sinica，Beijing 100080，Institute of Chemistry，Academia Sinica，Beijing 100080，Institute of Chemistry，Academia Sinica，Beijing 100080，Institute of Chemistry，Academia Sinica，Beijing 100080 |
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| 基金项目： | The project is supported by Ford-China Research and Development Fund. |
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| 摘 要： | Poly(butylene terephthalate )-b-poly (tetramethylene glycol) (PBT-b-PTMG) was usedas rheology modifier for the epoxy resin. The segmental copolymer formed spherulites inthe epoxy medium. This copolymer was very effective in endowing yield stresses to theliquid resin. The PTMG segment brought in a lowering of the dissolution temperature ofthe spherulites in the epoxy gel. The cured resin with PBT-b-PTMG as modifier was two-phase materials. The rheology modifier improved the mechanical properties of the curedresin as well. The flexible PTMG segments, however, were not in favour of the tougheningeffect of the modifier. This was attributed to the large domain size of the dispersed phase.
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| 收稿时间： | 1996-01-17 |
STUDIES ON EPOXY RESINS MODIFIED WITH POLY (BUTYLENE TEREPHTHALATE)-b-POLY (TETRAMETHYLENE GLYCOL)* |
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| WANG Xia,ZHAO Binyi,LI Zhengyi,YU Yunzhao. STUDIES ON EPOXY RESINS MODIFIED WITH POLY (BUTYLENE TEREPHTHALATE)-b-POLY (TETRAMETHYLENE GLYCOL)*[J]. Chinese Journal of Polymer Science, 1997, 0(1): 84-91 |
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| Authors: | WANG Xia ZHAO Binyi LI Zhengyi YU Yunzhao |
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| Affiliation: | Institute of Chemistry; Academia Sinica; Beijing 100080 |
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| Abstract: | Poly(butylene terephthalate )-b-poly (tetramethylene glycol) (PBT-b-PTMG) was usedas rheology modifier for the epoxy resin. The segmental copolymer formed spherulites inthe epoxy medium. This copolymer was very effective in endowing yield stresses to theliquid resin. The PTMG segment brought in a lowering of the dissolution temperature ofthe spherulites in the epoxy gel. The cured resin with PBT-b-PTMG as modifier was two-phase materials. The rheology modifier improved the mechanical properties of the curedresin as well. The flexible PTMG segments, however, were not in favour of the tougheningeffect of the modifier. This was attributed to the large domain size of the dispersed phase. |
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| Keywords: | Epoxy resin PBT-b-PTMG Yield stress Gel Toughening |
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