STUDY OF THE LIPID DETERGENCY PROCESS AS OBSERVED BY THE QUARTZ MICROBALANCE METHOD

石英微天平法观察脂质去污过程的研究

• 批准号: 11680117
• 负责人: SHIMOMURA Kumiko
• 金额: $ 1.41万
• 依托单位: Showa Women's University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11680117/
• 关键词: quartz crystal microbalance; lipid soil; surfactant; detergency; frequency; admitance; 粘性変化

Chemical solubilization of lipids is an imlportant process in the soil removal of textiles. This study will report a real time observation of the removal-process of solid lipids, namely, tripalmitin, trimyristin, cetyl alcohol, palmitic acid and lard from the surface of gold electrode of a quartz crystal microbalance by some anionic and nonionic surfactants. The surfactants were added in the bathing solutions of pH 7.0-12.5 at 25 and 30℃ over wide concentration ranges covering their cmc's. The lipids first swell up to about half of the weights and then are removed at rates specific to the surfactant species, thier concentrations and the pH's. The removal takes place from sufficiently below the cmc's, indicating that the micelles not necessarily participate in the solubilization process. With the anionic surfactants, the rates level off over their cmc's, while with the nonionic surfactants, the rates increase further in the concentration ranges. Alkalinity of the bathing solutions enhances the swelling degree and the removal rate to sizable degrees. These observations will be discussed for the interpretation of the molecular process of the lipid removal, 1. The removal process has been observed as the swelling of the solid lipids followed by the solubilization by the surfactants in non-micellic form. 2. The lipids swell more with increasing pH and increasing surfactant concentration. 3. The lipid removal takes place definitely from below the cmcs of the surfactants. With anionic surfactants, the apparent removal rate levels off over the cmcs while with nonionic surfactants, the rate increases further. 4. The process of the elimination of the substrate adipose dirt and the viscosity change of the appearance could be observed by measuring frequency and an admitance.

脂质的化学溶解是纺织品去污的一个重要过程。本研究将实时观察一些阴离子和非离子表面活性剂从石英晶体微天平金电极表面去除固体脂质（即三棕榈酸甘油酯、三肉豆蔻酸甘油酯、鲸蜡醇、棕榈酸和猪油）的过程。将表面活性剂添加到pH 7.0-12.5、温度为25℃和30℃的沐浴溶液中，浓度范围覆盖其cmc。脂质首先膨胀至重量的大约一半，然后以特定于表面活性剂种类、其浓度和pH值的速率被去除。去除发生在 cmc 的足够下方，表明胶束不一定参与溶解过程。对于阴离子表面活性剂，速率在其 cmc 上趋于平稳，而对于非离子表面活性剂，速率在浓度范围内进一步增加。沐浴液的碱性可在很大程度上提高溶胀度和去除率。将讨论这些观察结果，以解释脂质去除的分子过程，1。去除过程被观察为固体脂质的溶胀，然后是非胶束形式的表面活性剂的溶解。 2.随着pH值的增加和表面活性剂浓度的增加，脂质膨胀得更多。 3. 脂质的去除肯定是在表面活性剂的 cmcs 以下发生的。使用阴离子表面活性剂时，表观去除率在 CMC 上趋于平稳，而使用非离子表面活性剂时，去除率进一步增加。 4、通过测量频率和导纳可以观察基材脂肪污垢的消除过程和外观的粘度变化。

项目成果

下村久美子,小ノ澤治子,小見山二郎: "プロテアーゼによる人工汚染布の洗浄性に及ぼす界面活性剤、酸化剤の影響"日本繊維製品消費科学会誌. 42巻・3号(掲載予定). (2001)

Kumiko Shimomura、Haruko Onozawa、Jiro Omiyama：“表面活性剂和氧化剂对蛋白酶人工污染织物的清洁性的影响”日本纺织产品和消费者科学学会杂志第 42 期，第 3 卷（待出版）。 （2001）

下村久美子, 小ノ澤治子, 小見山二郎: "プロテアーゼによる人工汚染布の洗浄性に及ぼす界面活性剤、酸化剤の影響"日本繊維製品消費科学会誌. 42巻・3号. 50-58 (2001)

Kumiko Shimomura、Haruko Onozawa、Jiro Omiyama：“表面活性剂和氧化剂对蛋白酶人工污染织物的清洁性的影响”日本纺织产品和消费者科学学会杂志，第 42 卷，第 3. 50-58 期。 2001）

K. Shimomura, H Onozawa, J. Komiyama: "Detergency of Cotton Fabrics Stained with Artificician Soils"J. OF THE JAPAN RESEARCH ASSOCIATION FOR TEXTILE END-USES. Vol.42,3. 50-58 (2001)

K. Shimomura、H Onozawa、J. Komiyama：“人工土壤沾染的棉织物的去污力”J。