Weathering of Plastics

testing to mirror real life performance

George Wypych

• Publisher: William Andrew
• Year: 1999
• Topic: Technology & Engineering
• eBook ISBN:
  9780815519584
• Subtopic: Materials Science
• Index: Technology & Engineering

In spite of extensive efforts, material weathering testing still requires improvement. This book presents findings and opinions of experts in material degradation testing. The aim is to improve testing methods and procedures. Materials are presented to show that photochemical degradation rate depends on a combination of environmental factors such as UV radiation, temperature, humidity, rain, stress, and concentration of reactive pollutants. The potential effect of each parameter of degradation on data gathered is discussed based on known results from a long experience in testing. This book contains data obtained in laboratories of the largest manufacturers of UV stabilizers and chemical companies that manufacture durable materials. The book gives details of testing procedures and choice of parameters of exposure which are crucial for obtaining laboratory results correlating with environmental performance of materials.In addition to exposure conditions, the book contains many suggestions on sample preparation and post-exposure testing. The effective use of these methods shortens testing time of materials and determines acceleration rate of testing. The book also gives examples of complete, well-designed weathering experiments which may be used as patterns for selection of parameters and techniques for new studies. The areas of research that still require more attention in future studies are clearly indicated.

Table of contents

• Front Cover
• Copyright Page
• Contents
• Preface
• Chapter 1. Basic Parameters in Weathering Studies
• Chapter 2. Chapter Choices in the Design of Outdoor Weathering Tests
• Chapter 3. Comparison of New and Established Accelerated Weathering Devices in Aging Studies of Polymeric Materials at Elevated Irradiance and Temperature
• Chapter 4. Current Status of Light and Weather Fastness Standards. New Equipment Technologies, Operating Procedures and Application of Standard Reference Materials
• Chapter 5. Weatherability of Vinyl and Other Plastics
• Chapter 6. Aging Conditions' Effect on UV Durability
• Chapter 7. Molecular Weight Loss and Chemical Changes in Copolyester Sheeting with Outdoor Exposure
• Chapter 8. Fourier Transform Infrared Micro Spectroscopy. Mapping Studies of Weathered PVC Capstock Type Formulations. II: Outdoor Weathering in Pennsylvania
• Chapter 9. Effects of Water Spray and Irradiance Level on Changes Sheeting with Xenon Arc Exposure
• Chapter 10. Hot Water Resistance of Glass Fiber Reinforced Thermoplastics
• Chapter 11. Surface Temperatures and Temperature Measurement Techniques on the Level of Exposed Samples During Irradiation/Weathering in Equipment
• Chapter 12. Infrared Welding of Thermoplastics: Characterization of Transmission Behavior of Eleven Thermoplastics
• Chapter 13. Infrared Welding of Thermoplastics. Colored Pigments and Carbon Black Levels on Transmission of Infrared Radiation
• Chapter 14. Predicting Maximum Field Service Temperatures From Solar Reflectance Measurements of Vinyl
• Chapter 15. Residual Stress Distribution Modification Caused by Weathering
• Chapter 16. Residual Stress Development in Marine Coatings Under Simulated Service Conditions
• Chapter 17. Balancing the Color and Physical Property Retention of Polyolefins Through the Use of High Performance Stabilizer Systems
• Chapter 18. Activation Energies of Polymer Degradation
• Chapter 19. Failure Progression and Mechanisms of Irradiated Polypropylenes and Other Medical Polymers
• Chapter 20. Chemical Assessment of Automotive Clearcoat Weathering
• Chapter 21. Effect of Aging on Mineral-Filled Nanocomposites
• Chapter 22. The Influence of Degraded, Recycled PP on Incompatible Blends
• Chapter 23. Interactions of Hindered Amine Stabilizers in Acidic and Alkaline Environments
• Chapter 24. Interactions of Pesticides and Stabilizers in PE Films for Agricultural Use
• Chapter 25. The Influence of Co-Additive Interactions on Stabilizer Performance
• Chapter 26. New High Performance Light Stabilizer Systems for Molded-in Color TPOs: An Update
• Chapter 27. Stabilization of Polyolefins by Photoreactive Light Stabilizers
• Chapter 28. Effect of Stabilizer on Photo-Degradation Depth Profile
• Chapter 29. New Light Stabilizer For Coextruded Polycarbonate Sheet
• Chapter 30. Ultraviolet Light Resistance of Vinyl Miniblinds. Part 2. Reaction Products Formed by Lead in Air
• Chapter 31. Case Studies of Inadvertent Interactions Between Polymers and Devices in Field Applications
• Chapter 32. Automotive Clearcoats
• Index