臺灣博碩士論文加值系統

本研究使用兩種不同的環氧樹脂（Epoxy），DGEBA型（NF130A）及Novolac型（NF130-1A）分別與硬化劑（DDM）摻混製備NF130A/DDM及NF130-1A/DDM，探討樹脂熱硬化後之性質。經由FT-IR光譜之分析鑑定Epoxy和硬化劑單體的組成結構，並確定NF130A/DDM及NF130-1A/DDM已經成功開環硬化。
NF130A/DDM及NF130-1A/DDM摻合體之熱性質先以DSC、TGA分析，NF130A/DDM 30 wt%-130 ℃-3hr其玻璃轉移溫度Tg = 157.1 ℃、起始裂解溫度Td5wt% = 381.5 ℃、灰份殘餘率為18 %；NF130-1A/DDM 30 wt%-130 ℃-3hr之Tg =164.3 ℃、起始裂解溫度Td5wt% = 383.3 ℃、灰份殘餘率為28 %，相較之下NF130-1A/DDM具有較高的玻璃轉移溫度、起始裂解溫度及灰份殘餘率。
其次使用DMA分析其熱機械性質，NF130A/DDM-30 wt%在不同溫度硬化3小時由tan δ測得之玻璃轉移溫度從169.5 ℃上升至180 ℃，tan δ的值從0.86下降至0.41而NF130-1A/DDM 30 wt%在不同溫度硬化3小時由tan δ測得之Tg從139 ℃上升至174.8 ℃，tan δ的值從0.45下降至0.34表示隨著硬化溫度的升高，交聯密度增加，Tg也會增加。
最後使用鉛筆硬度計及電子比重計分析其物理性質，利用鉛筆硬度計測試不同配比的NF130A/DDM與NF130-1A/DDM硬度，當硬化劑用量為10 wt%時，鉛筆硬度是2 H，當DDM的量為 20 wt%，測得NF130A/DDM是4 H，而NF130-1A/DDM是5 H，當用量為30或40 wt%時都維持在5 H，硬化劑添加量越多，硬化程度越大。由比重計之測試結果顯示NF130A/DDM 30 wt%與NF130-1A/DDM 30 wt%在熱硬化後的比重並沒有因為加熱時間延長而變化，並得知NF130-1A/DDM 30 wt%的比重大於NF130A/DDM 30 wt%。

This study we used two epoxy resins, DGEBA type (NF130A) and Novolac type (NF130-1A), blending with hardener (DDM) to prepare NF130A/DDM and NF130-1A/DDM and to study their thermal properties. Chemical structures of epoxy, and hardener were confirmed by FTIR. First, the thermal properties of NF130A/DDM and NF130-1A/DDM were characterized by TGA and DSC. For NF130A/DDM 30 wt%-130℃-3hr, the glass transition temperature (Tg) was 157.1 ℃, the 5% weight loss temperature (T5) was 381.5 ℃, and the ash content was 18 %. For NF130-1A/DDM 30 wt%-130℃-3hr, the Tg temperature was164.3℃, the T5 was 383.3℃, and the ash content was 28 %. The NF130-1A/DDM has higher Tg, T5 and ash content than NF130A/DDM.
Then, the thermal mechanical properties of Epoxy/hardener were determined by DMA. For NF130A/DDM cured at different temperatures for 3 hr, the Tg from the peak of tanδ increased from 169.5 ℃ to 180 ℃ and the value of tanδpeak decreased from 0.86 to 0.41. For NF130-1A/DDM cured at different temperatures for 3 hr, the Tg from the peak of tanδ increased from 139 ℃ to 174.8 ℃ and the value of tanδpeak decreased from 0.45 to 0.34. The Tg of Epoxy/hardener increased with the increase of cured temperature and crosslink density.
Finally, the physical properties of Epoxy/hardener were measured with pencil hardness and electrical densitometer. When the content of hardener (DDM) in the epoxy/hardener blend was 10 wt%, the hardness is 2 H for both NF130A/DDM and NF130-1A/DDM. When the content of hardener (DDM) in the blend was 20 wt%, the hardness is 4 H for NF130A/DDM and 5 H for NF130-1A/DDM. When the content of hardener (DDM) was 30 or 40 wt%, the hardness is 5 H for both NF130A/DDM and NF130-1A/DDM. Densitometer results showed the specific gravity of both NF130A/DDM 30 wt% and NF130-1A/DDM 30 wt% didn’t change with the curing time. However, the 130-1A/DDM 30 wt% has higher specific gravity than the NF130A/DDM 30 wt%.

中文摘要 ---------------------------------------------------------------------- I
ABSTRACT-----------------------------------------------------------------------II
誌 謝-------------------------------------------------------------------------IV
目 錄--------------------------------------------------------------------------V
圖目錄------------------------------------------------------------------------VII
表目錄-------------------------------------------------------------------------IX

第一章 緒論 -------------------------------------------------------------------1
1-1 前言--------------------------------------------------------------------1
1-2 研究目的----------------------------------------------------------------2
第二章 文獻回顧----------------------------------------------------------------3
2-1 環氧樹脂之介紹----------------------------------------------------------3
2-2 環氧樹脂之種類----------------------------------------------------------4
2-3 環氧樹脂特性與應用------------------------------------------------------6
2-4 環氧樹脂硬化劑之介紹----------------------------------------------------8
2-5 環氧樹脂硬化反應機構---------------------------------------------------10
2-6 環氧樹脂與硬化劑之當量計算---------------------------------------------13
2-7 酚醛樹脂之介紹---------------------------------------------------------15
第三章 實驗-------------------------------------------------------------------16
3-1 實驗藥品---------------------------------------------------------------16
3-2 儀器設備---------------------------------------------------------------18
3-3 實驗流程---------------------------------------------------------------22
3-4 實驗步驟---------------------------------------------------------------23
3-4-1 NF130A、NF130-1A、DDM結構鑑定------------------------------------------23
3-4-2 NF130A與DDM之摻混------------------------------------------------------23
3-4-3 NF130A與DDM之摻混熱硬化------------------------------------------------23
3-4-4 NF130-1A與DDM之摻混----------------------------------------------------24
3-4-5 NF130-1A與DDM之摻混熱硬化----------------------------------------------24
第四章 結果與討論-------------------------------------------------------------25
4-1 單體之鑑定-------------------------------------------------------------25
4-1-1 DGEBA epoxy（NF130A）官能基之鑑定--------------------------------------25
4-1-2 Novolac epoxy（NF130-1A）官能基之鑑定----------------------------------26
4-1-3 DDM硬化劑官能基之鑑定--------------------------------------------------27
4-2 摻混物聚合反應---------------------------------------------------------28
4-3 熱性質分析-------------------------------------------------------------34
4-3-1 NF130A/DDM、NF130-1A/DDM之DSC分析--------------------------------------34
4-3-2 NF130A/DDM、NF130-1A/DDM熱硬化之DSC分析--------------------------------38
4-3-3 NF130A/DDM、NF130-1A/DDM之TGA分析--------------------------------------48
4-3-4 NF130A/DDM、NF130-1A/DDM熱硬化之TGA分析--------------------------------53
4-4 熱機械性質分析---------------------------------------------------------57
4-4-1 NF130A/DDM熱硬化之DMA分析----------------------------------------------57
4-4-2 NF130-1A/DDM熱硬化之DMA分析--------------------------------------------59
4-5 物理性質分析-----------------------------------------------------------62
4-5-1 鉛筆硬度計測試---------------------------------------------------------62
4-5-2 電子比重計試驗---------------------------------------------------------63
第五章 結論-------------------------------------------------------------------64
第六章 參考文獻---------------------------------------------------------------65
附錄：實驗儀器照片-------------------------------------------------------------68

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