This chapter focuses on weatherability of vinyl and other plastics. The mechanism of weathering is often caused by the damaging radiation from the sun. One way to rate the outdoor light stability of various polymers is to establish the energy to break its bonds. Outdoor weathering data is presented for a variety of polymers.
Optical and weathering properties. Plexiglas ® acrylic resins offer outstanding optical properties, affording one of the highest spectral transmissions in the plastic industry. These same resins offer the user low haze for a truly spectacular appearance. Combine this with the superior UV weatherability of the resin and its no wonder why Plexiglas...
Material options for outdoor sign applications: Acrylic - Acrylics generally have superior optical properties compared with polycarbonate materials. Fluted olefins - Plastic sheet materials such as Coroplast® are inexpensive and easy to print. They are ideal choices for yard signs including real estate signs and election signs that are intended for short-term outdoor use.
Plastics used for outdoor applications. Certain plastics such as acrylic, Ultem®, PVDF, and PTFE are inherently UV stable. However, most plastic materials exhibit color change and loss of elongation when exposed to UV light. Weathering resistance of some plastics can be improved by adding UV stabilizers or UV resistant caps to protect the base polymer.
Accelerated Weathering Testing for Plastics and Polymers. Elevated temperature testing on properties of plastics by deterioration Accelerated ageing of automotive materials by Xenon Arc - SAE J2020, SAE J1885, SAE J1960, VDA 75202, PV3929, PV3930 as well as stipulations from other major OEMs (Original Equipment Manufacturers) such as BMW, Daimler and Nissan.
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The subsequent chapters deal with the testing of five basic properties: mechanical, thermal, electrical, weathering, and optical properties of plastics. The chapter on mechanical properties discusses in detail the basic stress–strain behavior of the plastic materials so that a clear understanding of testing procedures is obtained.
Artifical Weathering Testing Plastic Properties Tinius Olsen Artificial Weathering has been defined by ASTM as The exposure of plastics to Effect of Diverse Weathering Conditions on the Effect of diverse weathering conditions on the physicochemical .
plastic lumber engineering properties info on plastic lumber boards. 16 Sep 2005 ... plastic lumber engineering properties info on plastic lumber boards. Ultraviolet Weathering. An ultraviolet stabilizer is incorporated at the time of manufacture. It protects the plastic from ultraviolet light degradation and ensures ... Wood-Plastic Composites ...
Vinyl film also known as polyvinyl chloride, or PVC is a versatile, cheap thermoplastic of good dimensional stability, good impact strength, and excellent weathering properties that can be easily die-cut and that is printable with conventional screen and offset printing methods.
The properties of six biodegradable commercial plastic bags, including BioBag, Flushdoggy, Green Genius, Oxobiodegradable, Rascodog, and World Centric, were examined. The effects of UV radiation, moisture exposure, and weathering on mechanical properties were studied. The creep, tensile, and thermal behavior of tdegradationhe bags wereinvestigated.
Weathering Resistance of Plastic Products PC – Polycarbonate, PPO – Polyphenylene oxide, PPE – Polyphenylene ether Installation systems from PC and PPE/PPO in black colour offer generally good resistance against we-ather influences. Surface degradation may result in a matt appearance without influencing the mecha-nical properties.
The success of plastic as an engineering material will depends up on the selection of variety of plastic. Following are the general properties of plastic. Appearance. Chemical resistance. Dimensional stability. Ductility. Durability. Electric insulation.
Description : This handbook is an compilation that illustrates how the elements of weathering affect the properties and characteristics of 89 plastics and elastomers. It is comprised of diverse references, including conference proceedings, test laboratories, materials suppliers, monographs, and trade and technical journals.
indicated that the water absorption of wood plastic composites increased after weathering but nanoclay reduced the Also, moisture absorption of the cellulosic fibers has undesirable effects on the properties of composites (Belgacem et al ) properties of a polymer matrix at a relatively low cost (Pascual et al ).
Plastic materials and durability: weathering testing. It is a real challenge for the plastics industry to predict a product’s durability depending on the aggressions it will suffer during its shelf life. Among the affected agents, we find plasticmaterial manufacturers, equipment manufacturers, who simulate these aggressions by accelerated ageing...
Plastic Weathering Fundamentals. Efects of UV Radiation on Plastics Exposure of plastic materials to UV radiation in the presence of atmospheric oxygen initiates degradation through a photo-oxidative process. This chemical process produces changes in the polymer structure (e.g. breaking or cross- linking of the polymer chains,...
Weathering & Aging. Ensuring that your product can survive the rigors of its environment is critical to its success. We can provide you with a wide variety of reliable aging and weathering tests to help you understand just how durable your material really is.
Important weathering characteristics and material properties of plastics and elastomers are presented in discussion, tabular and graphical sections. It provides a ready reference for comparing materials in the same family as well as materials in different families.
Effects of polymeric matrix on accelerated UV weathering properties of wood-plastic composites Chia-Huang Lee, Ke-Chang Hung, Yong-Long Chen, Tung-Lin Wu, Yi-Chi Chien and Jyh-Horng Wu * Department of Forestry, National Chung Hsing University, Taichung 402 , Taiwan * Corresponding author.