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題名 | Preparation and Properties of Novel Flame Retardant Materials Based on Phosphorus, Nitrogen and Silica Containing PMMA Hybrids by Sol-gel Technique=以溶膠-凝膠法製備含磷腈/矽之無機聚甲基丙烯酸甲酯型耐燃劑之性質探討 |
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作者 | 陳玉惠; 林佳玲; 袁敬堯; 陳世揚; 湯仁忠; 楊行中; | 書刊名 | 中原學報 |
卷期 | 33:3 民94.09 |
頁次 | 頁469-478 |
分類號 | 467.1 |
關鍵詞 | 磷腈環化合物; 聚甲基丙烯酸甲酯; 溶膠-凝膠法; 二氧化矽; 耐燃劑; Cyclotriphosphazene; Poly; Methylmethacrylate; Sol-gel; Silica; Flame retardancy; |
語文 | 英文(English) |
中文摘要 | 本研究為探討一系列含磷腈與Silica之PMMA,用以改進PMMA的熱穩定與難燃性。因此,合成含OH末端之磷腈環化合物[N3P3(OC6H4OH6)](HPP),並以溶膠-凝膠技術嵌入適量的Silica以形成有機-無機互穿式高分子網狀(interpenetrating network, IPN)材料,此類材料以FTIR、TGA、DSC、LOI、SEM-EDX和29Si固態NMR等儀器鑑定其特徵與性質,結果顯示IPN樣品之熱穩定及難燃性,密著HPP、Silica與PMMA之間的適當比例而有明顯地改要。從TGA測試結果發現,藉由溶膠-凝膠反應添加HPP/TEOS於PMMA中,可提高PMMA之裂解溫度,且隨HPP量之增加,其熱穩定性與殘渣量亦增加。在燒測試上,可發隨TEOS、HPP增加時,有機-無機IPN簿膜之LOI亦隨之提高,彩可達成其協成效應;由殘渣量(Yc)、熱裂解溫度化(T5%)及LOI值之提昇,可以判定矽(Si)與磷(P)之加入有助於提高PMMA的耐熱與難性質。本研究改良之IPN材料的熱降解溫度為高於300℃,LOI值上升至39,並探討IPN材料之化學鍵結與形態學。藉由溶膠-凝膠反應將含HPP/TEOS化合物與聚甲基丙烯酸甲酯形成IPN之反應,並利用FTIR、固態NMR證實HPP之OH與Si-OH之間有作用。從SEM配合EDX進行表面特定元素鑑之結果,可知磷(P)與矽(Si)原子均勻分散在有機-無機薄膜中,顯示有機高分子(PMMA)與無機矽氧化物(TEOS)及磷腈(HPP)之間相容性很好。且推知可達到納米層級之複合材料。 |
英文摘要 | In this study, hydroxyl group-containing cyclotriphosphazene, N3P3(OC6H4OH)6, has been synthesized and incorporated with various amount of silica and PMMA to form hybrids by sol-gel technique. The characterization and properties of the hybrids were investigated by FTIR, solid-state 29Si NMR, TGA, DSC, LOI and SEM/EDX measurements. The results indicate that the hybrids re well-hybridized, transparent materials due to the formation of the covalent bonding between HPP and silica and the hydrogen bonding between t he unreacted hydroxyl groups of HPP/silica and the carbonyl groups of PMMA polymer. The thermal degradation temperature up to above 300℃and LOI value up to 39 are obtained, indicating that, compared to PMMA, the thermal stability and the flame retardancy of the hybrids with proper ratio of HPP and SiO2 have greatly improved. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。