頁籤選單縮合
題 名 | 殺菌性PU之合成及其抗菌恬性之研究=The Synthesis of Biocidal PU and its Antibacterial Activity |
---|---|
作 者 | 汪輝雄; 伊登月; | 書刊名 | 材料科學 |
卷 期 | 29:4 1997.12[民86.12] |
頁 次 | 頁215-226 |
分類號 | 467.4 |
關鍵詞 | 抗菌加工; 聚胺基甲酸酯; Antimicrobial finish; Polyurethane; |
語 文 | 中文(Chinese) |
中文摘要 | 近年來織物的抗菌加工已廣被認識,尤其以反應型抗菌加工更是受重視的研究方 向。 本實驗共合成了三種型態之聚胺基甲酸酯 (PU) ; A 型 (Polytetramethylene glycol(PTMG) 分子量為 2000)、B 型 (PTMG 分子量為 1000)、C 型 (PTMG 分子量為 650) 。首先將 PTMG 與 4,4'- diphenylmethane diisocyanate (MDI) 反應合成預聚合體後,再 滴入鏈延長劑 (diethylenetriamine (DETA) 或 DETA/hydrazine) 形成 PU,再將環氧乙二 烷 (Epichlorohydrin) 與 PU 產生接枝反應後再加入不同含量的殺菌劑 (QAS), 合成出具 有共價鍵 QAS 的 PU 薄膜, 再利用瓊脂平板法 (Agar plate method) 與搖瓶法 (Shake flask method) 法來評估其殺菌效果,由實驗結果得知:水洗之後可以將 PU 薄膜及 PU 加 工布中殘留的殺菌劑洗除,故利用水洗測試後評估含殺菌劑 PU 薄膜之反應率與抗菌活性, 並發現這些薄膜及加工布對於 Staphylo-coccus aureus 表現出良好的抗菌活性,且抗菌活 性會隨殺菌劑含量增加而增加, 去除殘留在 PU 薄膜及加工布中的殺菌劑後,PU 薄膜及加 工布的抗菌效果依然不錯。 由紅外線 (IR) 光譜可看出, 具有共價鍵 QAS 的 PU 薄膜在 2300com �笐薯酗@吸收峰,其為殺菌劑中矽 (silicone) 基的吸收,再由物性測試結果可知 ,其物性不會因導入殺菌劑而有顯著的影響。 |
英文摘要 | Recently, the antimicrobial finishes on the cotton fabrics has been known and accepted extensively. Particularly, the reactive-antimicrobial finishes are the most attractive. In this experiment, we synthesized three type of PU polymers; type A (Molecular weight of Polytetramethylene glycol (PTMG) is 2000), type B (Molecular weight of PTMG is 1000), type C (Molecular weight of PTMG is 650). Firstly, the PU prepolymers were prepared by reacting PTMG with 4, 4'-diphenylmethane diisocyanate (MDI) , then were extended with diethylenetriamine (DETA) (or DETA/ hydrazine mixture) to form the PU polymer. The polymer was then grafted with epichlorohydrin and further reacted with different amounts of biocide (QAS) to form biocidal active PU quaternary ammonium salts. The biocidal properties of the PU films were evaluated by the agar plate and the shake flask method. From the experimental results, it demonstrates that these films and finished fabrics exhibit a high biocidal activity against Staphylococcus aureus. The biocidal activity is found to increase with the amount of QAS. After rinsing with water, the biocidal activity of these films and finished fabrics still remains the biocidal characteristics. From IR specturm, PU films with covalent bond of QAS show an absorption peak at 2300 cm �笐�, which is corresponding to the presence of silicon in QAS. As for the mechanical properties, the PU films with QAS sustain the mechanical properties in spite of the increasing amount of grafted QAS. |
本系統中英文摘要資訊取自各篇刊載內容。