臺灣博碩士論文加值系統

本論文使用具有可生物降解性的親水性高分子聚乙烯醇(PVA)作為反應物，與甲醛進行縮醛化的交聯反應，來製備多孔性的聚乙烯醇縮甲醛泡棉(PVF Foam)
；在反應過程中，添加入兩種不同的水玻璃(矽酸膠、偏矽酸鈉)作為造孔劑，並且在實驗中分別改變聚乙烯醇固成分的比例(CPVA = 12~14 wt%)和水玻璃濃度(CS.G. = 0.1~0.5 wt%)，探討其改變對PVF Foam結構與物性的影響。

This thesis uses the biodegradable hydrophilic polymer,PVA (Poly(vinyl alcohol)) as a reactant, then acetalize with formaldehyde to prepare a porous PVF Foam (Poly(vinyl formal foam)). In the present experiments, added into two different silica gels (Colloidal Silica and Sodium metasilicate) were served as a pore-forming agent.
The effects of various compositive of PVA vs. silica gels on the physical properties and water content of the PVF Foams were also investigated.

第一章 緒論
第二章 文獻回顧及原理介紹
第三章 實驗方法
第四章 結果與討論
第五章 結論與建議

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