Study on Tribology of Fluorinated Polymer Langmuir-Blodgett Films

氟化聚合物Langmuir-Blodgett薄膜的摩擦学研究

• 批准号: 11555246
• 负责人: MIYASHITA Tokuji
• 金额: $ 8.9万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555246/
• 关键词: Tribology; Langmuir-Blodgett Film; Fluorinated Polymer; Lubricant; ラングミュアーロジェット(LB)膜(3)ハードディスク; フッ素系高分子LB膜; 動摩擦係数

Polymer Langmuir-Blodgett (LB)films are expected to apply to functional ultrathin films because organized polymer assemblies with controllable molecular array have higher thermal and mechanical stability and high resistance to dissolution by organic solvents compared with low molecular weight. On the other hand, Fluorinated materials are known to have low surface energy, chemical stability and wer-resistance; therefore, fluorinated polymer LB film is expected to serve as a novel type of solid lubricant. In order to these goal, the following studies have been carried out:(1) Synthesis of a series of poly(N-perfluoroalkylacrylamides) and preparation of their LB films. The layer structures of the polymer LB films by XRD measurements and surface characterization of the polymer LB films by the contact angle measurements and surface roughness observed by atomic force microscopy. The spreading behavior of monolayers of poly(N-polyfluoroalkylacrylamides) at the air-water interface depends on t … More he length of fluorocarbon chains and molecular weights.(2)Tribology of the fluorinated polymer LB films. The friction coefficients of the fluorinated polymer LB films decrease with increasing fluoroalkyl chain lengths and change with polymer molecular weights.(3) Tribology of the fluorinated polymer LB films deposited onto the hard disk. The ambient and warm/wet constant-start-stop (CSS) test reveals that the LB films with three layers can be used for lubricant of hard disk with durable enough for practical use while the cool/dry CSS test results can be negligible.In order to reform the tribology performance of poly(N-perfluoroalkylacrylamide) LB films, the following studies have also been investigated.(4) Synthesis of a series of poly(N-decylacrylamide-N-1H,1H-pentadecafluorooctylacrylamide) copolymers and preparation of their LB films. Tribology of the copolymer LB films.(5)Preparation of mixed LB films of poly(N-perfluoroalkylacrylamide) with PFPE and tribology of LB films. Synthesis of fluorinated polymer having cross-linking group, preparation of their LB films and tribology of their LB films. Less

聚合物LB膜由于具有可控分子排列的有序聚合物组装体具有较高的热稳定性、机械稳定性和耐有机溶剂溶解性，有望应用于功能薄膜。另一方面，含氟材料具有低表面能、化学稳定性和耐水性，因此，含氟聚合物LB膜有望作为一种新型的固体润滑剂。为了实现这一目标，本文开展了以下研究工作：（1）合成了一系列聚（N-全氟烷基丙烯酰胺），并制备了它们的LB膜。通过XRD测量聚合物LB膜的层结构，通过接触角测量和原子力显微镜观察聚合物LB膜的表面粗糙度来表征聚合物LB膜的表面特征。聚（N-多氟烷基丙烯酰胺）单分子膜在空气-水界面上的铺展行为取决于表面张力的大小。 ...更多信息 碳氟链的长度和分子量。（2）含氟聚合物LB膜的摩擦学性能。含氟聚合物LB膜的摩擦系数随氟烷基链长的增加而减小，并随聚合物分子量的变化而变化。(3)沉积在硬盘上的氟化聚合物LB膜的摩擦学。常温和温/湿恒启停（CSS）试验表明，三层LB膜可作为硬盘润滑剂，具有足够的耐久性，而冷/干CSS试验结果可忽略不计。(4)合成了一系列聚（N-癸基丙烯酰胺-N-1H，1H-十五烷基辛基丙烯酰胺）共聚物并制备了其LB膜。共聚物LB膜的摩擦学。（5）聚（N-全氟烷基丙烯酰胺）与PFPE混合LB膜的制备及其摩擦学性能。含交联基团的含氟聚合物的合成、LB膜的制备及LB膜的摩擦学性能。少

项目成果

P.Qian, H.Nanjo, N.Sanda, T.Yokoyama, O.Itabashi, H.Hayashi, T.Miyashita, T.M.Suzuki: "Direct Observation of the Polymer and Monomer Langmuir-Blodgett Films with the Atomic Force Microscopy"Thin Solid Films. 349. 250-253 (1999)

P.Qian、H.Nanjo、N.Sanda、T.Yokoyama、O.Itabashi、H.Hayashi、T.Miyashita、T.M.Suzuki：“用原子力显微镜直接观察聚合物和单体 Langmuir-Blodgett 薄膜”

F. Feng, T. Miyashita, F. Takei, K. Onitsuka and S. Takahashi: "Formation of an optically active Helical Polyisocyanide Langmuir-Blodgett Film"Chem. Lett.. 764-765 (2001)

F. Feng、T. Miyashita、F. Takei、K. Onitsuka 和 S. Takahashi：“光学活性螺旋多异氰化物 Langmuir-Blodgett 薄膜的形成”Chem。

F.Feng, T.MIyashita, F.Takei, K.Onitsuka, S.Takahashi: "Formation of an optically Active Helical Polyisocyanide Langmuir-Blodgett Film"Chemistry Letters. 764-765 (2001)

F.Feng、T.MIyashita、F.Takei、K.Onitsuka、S.Takahashi：“光学活性螺旋多异氰化物 Langmuir-Blodgett 薄膜的形成”化学快报。

Y.Amao,I.Okura,and T.Miyashita: "Thenoyltrifluoroacetonato 1,10-Phenanthroline Europium (III) Complex Immobilized in Fluoropolymer Film as Optical Oxygen Sensing Material"Chem.Lett.,. 934-935 (2000)

Y.Amao、I.Okura 和 T.Miyashita：“作为光学氧传感材料固定在含氟聚合物薄膜中的噻吩酰基三氟丙酮 1,10-菲咯啉铕 (III) 络合物”Chem.Lett.,。

F. Fan and T. Miyashita: "Monolayer Behavior of Poly(N-decylacrylamide-co-N-1H,1H-pentadecafluorooctylacrylamide) on Water and Surface Characterization of Their Langmuir-Blodgett Films"Polymer J.. 33. 857-861 (2001)

F. Fan 和 T. Miyashita：“聚（N-癸基丙烯酰胺-co-N-1H,1H-十五氟辛基丙烯酰胺）在水中的单层行为及其 Langmuir-Blodgett 薄膜的表面表征”Polymer J.. 33. 857-861（