Dip coating assisted polylactic acid deposition on steel surface: Film thickness affected by drag force and gravity

被引：33

作者：

Fang, Hsu-Wei ^{[1
]}

Li, Kuo-Yen ^{[1
]}

Su, Tai-Lun ^{[1
]}

Yang, Thomas Chun-Kuang ^{[1
]}

Chang, Ji-Sheng ^{[1
]}

Lin, Po-Liang ^{[1
]}

Chang, Wen-Chung ^{[2
]}

机构：

[1] Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Taipei, Taiwan

[2] Bio Invigor Corp, Taipei, Taiwan

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 21-22期

关键词：

coatings; polymers; deposition; dip coating; polylactic acid; film thickness;

D O I：

10.1016/j.matlet.2008.04.046

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dip coating process has the potential of providing an easier and economical way to form a polylactic acid (PLA) layer on metal surface for various applications. The effects of dip coating operating parameters such as the withdrawal velocity, concentration, and viscosity of the solution on the film thickness were investigated in this study. Our experimental results show that the increase of withdrawal velocity leads to the increase of PLA film thickness at the relatively low withdrawal velocity regime. However, at the relatively high withdrawal velocity regime of the dip coating process, it was observed that the PLA layer thickness starts to decrease with increasing withdrawal velocity. It is suggested that the competition of drag force and gravity during the dip-coating process dominates PIA film formation. A mechanism was proposed to explain this special behavior which was never observed in the dip coating process. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：3739 / 3741

页数：3

共 11 条

[1] FUNDAMENTALS OF SOL-GEL DIP COATING [J].

BRINKER, CJ ;

FRYE, GC ;

HURD, AJ ;

ASHLEY, CS .

THIN SOLID FILMS, 1991, 201 (01) :97-108

[2] AMORPHOUS AND CRYSTALLINE DIP COATINGS OBTAINED FROM ORGANOMETALLIC SOLUTIONS - PROCEDURES, CHEMICAL PROCESSES AND PRODUCTS [J].

DISLICH, H ;

HUSSMANN, E .

THIN SOLID FILMS, 1981, 77 (1-3) :129-139

[3] DIP-COATING OF ULTRA-THIN LIQUID LUBRICANT AND ITS CONTROL FOR THIN-FILM MAGNETIC HARD DISKS [J].

GAO, C ;

LEE, YC ;

CHAO, J ;

RUSSAK, M .

IEEE TRANSACTIONS ON MAGNETICS, 1995, 31 (06) :2982-2984

[4] DIP-COATING METHOD FOR FABRICATING THIN PHOTORESIST FILMS [J].

GIBSON, M ;

FREJLICH, J ;

MACHORRO, R .

THIN SOLID FILMS, 1985, 128 (1-2) :161-170

[5]

Landau L, 1942, ACTA PHYSICOCHIM URS, V17, P42

[6] Effects of hydroxyapatite dosage on mechanical and biological behaviors of polylactic acid composite materials [J].

Lin, Po-Liang ;

Fang, Hsu-Wei ;

Tseng, Tiffany ;

Lee, Wun-Hsing .

MATERIALS LETTERS, 2007, 61 (14-15) :3009-3013

[7] COLORED COATINGS PREPARED BY THE SOL-GEL PROCESS [J].

ORGAZ, F ;

RAWSON, H .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1986, 82 (1-3) :378-390

[8]

Tschakaloff A, 1993, J Craniofac Surg, V4, P223

[9] SURGICAL APPLICATIONS OF BIODEGRADABLE POLYMERS IN HUMAN-TISSUES [J].

VAINIONPAA, S ;

ROKKANEN, P ;

TORMALA, P .

PROGRESS IN POLYMER SCIENCE, 1989, 14 (05) :679-716

[10] DEPOSITION OF ULTRATHIN FILMS BY A WITHDRAWAL METHOD [J].

YANG, CC ;

JOSEFOWICZ, JY ;

ALEXANDRU, L .

THIN SOLID FILMS, 1980, 74 (01) :117-127

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