Coating and drying defects troubleshooting operating problems
A practical guide for ensuring a defect-free coating and drying process For professionals in the coating and drying industry, the world is a demanding place. New, technically complex products such as fuel cell membranes, thin film batteries, solar cells, and RFID chips require coatings of extreme pr...
| Autor principal: | |
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| Otros Autores: | , |
| Formato: | Libro electrónico |
| Idioma: | Inglés |
| Publicado: |
Hoboken, N.J. :
Wiley-Interscience
c2006.
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| Edición: | 2nd ed |
| Materias: | |
| Ver en Biblioteca Universitat Ramon Llull: | https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009664725606719 |
Tabla de Contenidos:
- COATING AND DRYING DEFECTS; CONTENTS; Preface; Preface to the First Edition; About the Authors; 1 Introduction; 2 Troubleshooting or Problem-Solving Procedure; Basic Troubleshooting Principles; Detect the Defect; Define the Defect or Problem; Name the Defect; Problem Statement; Collect and Analyze Additional Data; Process Information; General Process Information; Analytical Data; Standard Operating Procedures; Analyze the Data and Identify Potential Causes of Problem; Eliminate the Problem; Document the Results; Use Results to Prevent Reoccurrence; References
- 3 Coater and Defect Analytical ToolsOverview of Analytical Tools; Analytical Methods to Characterize Defects; Defect Test Procedures; Video Enhanced Microscopy; Surface Characterization Techniques; Coater Characterization Instruments; Data Loggers; Rheological Measurements; Surface Properties; On-Line Characterization Systems; On-Line Inspection Systems; On-Line Coating Weight Measurement; On-Line Viscosity; Data Analysis Techniques; Keeping Current; References; 4 Problems Associated with Feed Preparation; Dirt and Other Particulates; Filtration; Agglomerates; Bubbles
- Poor Cross-Web UniformityIn-Line Mixers; Temperature Control; Flow Control for Down-Web Uniformity; Feeding the Coating Liquid; Flow Control; Magnetic Flow Meters; Ultrasonic Meters; Coriolis Meters; References; 5 Problems Associated with Roll Coating and Related Processes; Coating Methods; Control of Coating Weight; Ribbing; Ribbing in Forward Roll Coating; Ribbing and Cascade (or Herringbone or Seashore) in Reverse Roll Coating; Gravure Coating; Streaks and Bands in Roll Coating; Chatter in Roll Coating; Sagging; References; 6 Problems in Slot, Extrusion, Slide, and Curtain Coating
- Description of Coating MethodsLimits of Coatability; The Window of Coatability; Slide Coating; Vortices and Eddies; Slot Coating; Extrusion Coating; Curtain Coating; Effect of Surface Roughness on the Limits of Coatability; Instabilities in Premetered Coating; Chatter; Ribbing; Neck-in; Scalloped Edges; Edge Beads and Heavy Edges; Waves in Slide and in Curtain Coating; Streaks and Bands in Premetered Coating; References; 7 Coating Problems Associated with Coating Die Design; Cross-Web Uniformity; Temperature Control; Corrections to the Coating Die Internals
- Die Internal Pressures and SpreadingExtrusion Dies; Wall Shear Stress Control and Residence Time Control; References; 8 Surface Tension Driven Defects; Surfactants; Surface Tension Effects in Coating; Surface Tension Driven Defects; Convection or Bénard Cells; Craters; Fat Edges or Picture Framing; Nonuniform Edges in Multilayer Coatings; Dewetting and Crawling; Adhesive Failure and Delamination; Nonuniform Base Surface Energies; References; 9 Problems Associated with Static Electricity; Formation of Charges; Electrostatic Fields; Surface Resistivity; Measurement of Static Charges
- Removal of Charges
