منابع مشابه
Resin Tearing: a Polyester Gelcoat Surface Defect
Polyester gelcoat has been a useful and popular coating for RP fabrication for over twenty years. The gelcoat has not only been important as a protective coating for the fiberglass laminate in a large variety of construction applications, but in many cases has provided a cosmetically desirable finish that enhances the attractiveness and market value of the RP part. In recent years as the manufa...
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Polymers are substances whose molecules consist of a large number of units of a few types: the units themselves, consisting of a number of atoms, are usually referred to as the segments of the polymer. In the polymerization of a mixture of two monomers, the structure of each macromolecule contains units of both monomers. Such a polymer is called copolymer and the process of its synthesis is cal...
متن کاملMechanical Properties of Unsaturated Polyester Resin
Mechanical behaviour of unsaturated polyester resin used for the composite materials has been studied to determine various important parameters, such as tensile and compressive, single edge-notch tensile fracture toughness, flexural properties and fracture energy. Fracture toughness, KIC, and fracture energy, GIC, obtained for the polyester resin lie between the typical values for epoxy resins ...
متن کاملChemical characterisation of the fracture surfaces of polyester resin and a polyester based nanocomposite
A novel in situ fracture stage has been used to conduct micro compact tension (micro-CT) tests within the preparation chamber of a time-of-flight secondary-ion mass spectrometry (ToF-SIMS) instrument. Tests have been undertaken in the usual ultra high vacuum (UHV) conditions and in an ambient air atmosphere for comparison. A plain polyester resin system has been compared to an organically modif...
متن کاملPolyester Resin Plastination for Light Weight Poultry Specimens
Polyester resin plastination is a less expensive technique, resulting in high quality plastinates. The dissected poultry specimens were fixed with formaldehyde. Specimens were impregnated with resin, followed by curing resulted in good quality dry, odourless and solid specimens which can be used for teaching.
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ژورنال
عنوان ژورنال: Occupational and Environmental Medicine
سال: 1963
ISSN: 1351-0711
DOI: 10.1136/oem.20.2.100