• 沒有找到結果。

本實驗已合成出新式增韌改質劑來達到增韌環氧樹脂之效果,經分 析測試後得到下列幾點結論:

1. 醚醯胺化聚脂肪二酸所合成出來之增韌改質劑,其主要分子結構 不含雙鍵,且結構中無致癌性成分存在,而大大降低對人體有害。

2. 醚醯胺化聚脂肪二酸之增韌改質劑,其製品酸價含量高低,將會 影響到環氧樹脂改質後的相容性。

3. 改質前後之環氧樹脂其表面硬度由原先 HSD82 隨著增韌改質劑添 加量到40 %時,其硬度降到 HSD63,下降幅度高達 20 %左右。

4. 抗拉強度與拉伸模數隨著增韌改質劑添加量增加而呈現下降,雖 然其下降幅度超乎預期,但拉伸率卻從原先的7 %增加到 55 %,

其上升幅度將近7 倍左右。

5. 衝擊強度隨著增韌改質劑添加量增加而上升,其增韌改質劑添加 量若達到40 %時,其未改質樹脂的衝擊值由 3.5 kgf-cm/cm 呈現急 速上升到18.9kgf-cm/cm,其幅度遠比其它添加量來得明顯。

6. 玻璃轉移溫度隨著增韌改質劑添加量增加而有逐步下降的趨勢現 象。

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