臺灣博碩士論文加值系統

本文探討以不飽和聚酯樹脂(UP)與苯乙烯(ST)為共單體，利用無乳化劑之乳化聚合法合成出反應性微膠顆粒(reactive microgels，RM)，用來當作不飽和聚酯之抗體積收縮劑(low-profile additive，LPA)。吾人並探討反應性微膠顆粒(RM)其顆粒大小、及其顆粒表面及內部的C=C雙鍵數，對ST/UP/RM三成份系在低溫300C聚合固化後之SEM微觀型態結構之影響。
本文中，吾人亦探討核心為PBA(聚丙烯酸正丁酯)，外殼為PMMA之奈米級壓克力核殼型橡膠增韌劑(CSR)，其顆粒大小及外殼化學組成對苯乙烯(ST)/不飽和聚酯(UP)/(CSR)其三成份系1100C聚合固化後成品之機械性質的影響。

Reactive microgels(RM)-based low-additive profiles(LPA), which were made from unsaturated polyester (UP) and styrene (ST), were synthesized by soapless emulsion polymerizations. The effects of particle size and the number of C=C bonds on the surface and the interior of RM on the sample morphology cured at 300C as observed by scanning electron microscopy (SEM) have been investigated.
In this work, the effects of particles size and the shell chemical composition of the nano-scale acrylic type of core-shell rubbers (CSR), as toughneners for UP resins, on the mechanical properties of the ST/UP/CSR ternary systems after the cure at 1100c have also been explored.

中文摘要………………………………………………………………..Ⅰ
英文摘要………………………………………………………………..Ⅱ
誌謝……………………………………………………………………..Ⅲ
目錄……………………………………………………………………..Ⅳ
圖表目錄………………………………………………………………..Ⅶ
第一章 緒論……………………………………………………………..1
1-1 不飽和聚酯(UP).………………………………………….1
1-2 增韌劑……………………………………………………..2
1-3 抗收縮劑…………………………………………………..4
1-4 反應性微膠顆粒(reactive microgels, RM)………………..6
1-5 研究範疇…………………………………………………..7
第二章 文獻回顧………………………………………………………..8
2-1 反應性微膠顆粒(reactive microgels)…………………..…...8
2-2 乳化聚合法………………………………………………...11
2-3 自由基聚合反應.....……….…………………………….....19
2-4 不飽和聚酯(UP)樹脂之合成..…………………………….22
2-5 不飽和聚酯(UP)樹脂與苯乙烯(ST)之交聯共聚合反應....23
2-6 不飽和聚酯(UP)/樹脂/苯乙烯(ST)/抗收縮劑(LPA)三成
份系統之相溶性…………………………………………..26
2-7 不飽和聚酯硬化後的機械性質研究……………………...27
2-8 核殼性橡膠增韌劑的效應………………………………...29
第三章 實驗方法及設備………………………………………………32
3-1 反應性微膠顆粒型LPA的合成…………………………...32
3-1-1反應性微膠顆粒的原料………..…..………………….33
3-1-2合成反應性微膠顆粒的實驗儀器…………………….35
3-1-3反應性微膠顆粒(RM)型LPA之合成步驟……………37
3-2 三成份試片的合成..……………..………………………...38
3-2-1三成份試片的原料…………………………………….40
3-2-2三成份試片的實驗裝置苯乙烯……………………….40
3-2-3三成份試片製作…………………………….…………41
3-3 SEM微觀結構……………………………………………...43
3-3-1 ST/UP/CSR…...………………………………………..43
3-3-2 ST/UP/RM………………………...……...……………43
3-4 機械性質之量測…………………………………………...44
3-4-1 耐衝擊測試(Impact Test)...…………………………...44
3-4-2 拉伸測試(Tension Test)……………………………..45
3-4-3 破壞韌性(Fracture toughness)………………………...46
3-4-4 波松比測試(Poisson’s ratio)………………………….47
3-4-5 破壞能量(Fracture energy)……………………………47
第四章 結果與討論……………………………………………………48
4-1 反應性微膠顆粒(reactive microgels)型抗收縮劑之合成...48
4-1-1 RM的顆粒大小……………………………………….50
4-1-2 FTIR的分析………………………………………… ..52
4-2 苯乙烯(ST)/不飽和聚酯樹脂(UP)/反應性微膠顆粒(RM)三
成份系統之微觀結構…………..…………………………72
4-3苯乙烯(ST)/不飽和聚酯樹脂(UP)/核殼型橡膠(CSR)三成份
系統之微觀結構……..……………………………………78
4-4 Takayanagi機械模式……………………………………...104
4-5 UP/ST/CSR三成份試片的機械測試……………………..106
4-5-1 耐衝擊強度………………………..…………………106
4-5-2 抗張強度測試…………..……………………………113
4-5-3楊氏模數…….………………………………………..120
4-5-4破壞韌性測試………………………………………...127
第五章 結論…………………………………………………………..134
第六章 未來工作建議………………………………………………..136
参考文獻………………………………………………………………137

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