1. 由 FTIR、觀察樣品之顏色變化及 UV-vis 測定結果，經加熱(180 ℃, N2)老 化試驗之純 PVC 與添加小量(0.1 phr 或 0.3 phr)CNT、bmCNT 和 CNT-COOH 之 PVC 薄膜，隨著加熱老化時間增長，純 PVC 熱裂解所形成之共軛多烯
2. 以剛果紅試驗(Congo red test)測定不同比例之 CNT/PVC、bmCNT/PVC 和 CNT-COOH/PVC 的熱安定化時間，發現添加 0.5 phr CNT 於 PVC 中並沒有
3. 由去氯化氫試驗(Dehydrochlorination test)可知，在短期(30 min)加熱老化實 驗，CNT、bmCNT 及 CNT-COOH 皆有加速 PVC 熱裂解釋放氯化氫氣體的 情形，當加熱老化時間增長，bmCNT 與 CNT-COOH 因吸收 PVC 熱裂解之
CNT-COOH > CNT。
4. 由 GPC 分析測定結果，純 PVC 在加熱老化過程中同時發生裂解與交聯反 應，添加 1 phr 不同種類奈米碳管之 PVC，在加熱老化初期碳管都對 PVC 具有催化熱裂解，分子量降低之作用，但長期加熱老化試驗，碳管對 PVC 則有明顯的促進交聯反應，分子量上升之效應，推測 PVC 主鏈上裂出之
Cl·和 H·自由基轉移至碳管表面，由碳管吸收 PVC 上之自由基，因而較有 機會進行交聯反應。
5. 由 TGA 分析，添加 1 phr 不同種類之奈米碳管，對 PVC 皆有提高 PVC 第 一階段熱裂解溫度和降低熱裂解速率，且減少 PVC 之重量損失之安定化作 用。由此試驗，不同種類碳管對 PVC 之安定效果之優劣順序為 bmCNT >
CNT-COOH > CNT。
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