Physicochemical basis of sanitary chemistry of polymeric materials

Semenenko, E.I.; Markelov, M.A

doi:10.1007/bf01156290

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(2 citation statements)

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“…The sanitary-hygienic and toxicological characteristics of fibre composites are determined by the corresponding characteristics of their basic components, primarily the polymer matrices and special additives and fillers incorporated in them [2, [206][207][208][209][210][211]. The range of sanitary-hygienic and toxicological characteristics of the components incorporated in PCM differs; many polymer components fibre fillers, thermoplastic matrices do not have significant toxicity.…”

Section: Safety/hazardousness Of Pcm In Usementioning

confidence: 99%

“…Detailed information on the sanitary-hygienic and toxicological characteristics and possibilities of using PFCM in different types of articles is given in special standards and described in detail in the specialized literature [2, [206][207][208][209][210][211]. In addition, all types of polymeric materials must undergo special sanitary-hygienic evaluation before use in construction, interior furnishings, clothing and shoes, medicine, packaging, and articles in contact with food products and drinking water, and a special certificate must be issued for their use.…”

Section: Safety/hazardousness Of Pcm In Usementioning

confidence: 99%

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Polymeric fibre composites, basic types, principles of fabrication, and properties. Part 5. Effect of performance effects on polymeric fibre composites; safety/hazardousness characteristics

Perepelkin

2006

Fibre Chem

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The principles of materials science of polymeric fibre composite materials (PFCM) containing different reinforcing fibrous fillers (short-cut fibres, paper, yarn, tow, sliver, fabrics, and nonwoven materials) and different matrices (thermoplasts and thermosets) are examined in an analytical review [Khim. Volokna, No. 4 and 5 (2005); No. 1, 4, and 6 (2006)]. The mutual effect and reaction of the components of PFCM (fibres and matrices) are analyzed. information is reported on the fabrication and properties of different kinds of composites: fibre-filled molding materials, pertinaxes, textolites, unidirectional composites, honeycomb plastics, etc. New types of composites with ultrahigh mechanical and thermal characteristics are examined. Testing methods and the functional properties of PFCM are examined: mechanical, thermophysical, electrophysical, optical. The mechanisms of the changes in the structure and properties of PFCM under external effects: thermal, photochemical, ionizing radiation, active media, and other factors, are analyzed. Performance reliability indexes are examined, including aging and the effect of extreme conditions. Safety/ hazardousness characteristics are very important in selection of PFCM and use of articles made from them: sanitary-hygienic and toxicological, combustibility and toxicity of products of combustion. The following features of polymeric fibre composites in comparison to other materials are summarized below based on the examination: Combination of different kinds of fibre fillers and matrices (binders) allows regulating the properties of PCM in a wide range, selecting the optimum indexes for items with a wide spectrum of applications.Items made of PFCM involve low specific consumption of materials and are easy to manufacture, process, and treat in comparison to many traditional materials, metals and ceramics in particular. Articles made from composites are reliable in use, almost not subject to corrosion, and do not require special protection or periodic painting of the surface. With respect to specific mass characteristics, PFCM can be many times better than items made of metals and other traditional materials. This is important for using them in vehicles, aircraft, rescue craft, and sporting goods. Due to the features of the properties and the positive performance characteristics, PFCM have a great future in the most varied areas of application. BASIC EFFECTS ON PFCM DURING USEPolymer fibre materials and items made from them are constantly exposed to the environment during use: high temperatures, insolation and radiation, atmospheric and microbiological effects, active liquid and gaseous media, and other factors. Usually several of these factors act simultaneously, potentiating each other [2, 10,[171][172][173]. Aging during use of PFCM takes place under the effect of external factors their structure and properties, evaluated by the change in the basic functional characteristics, primarily mechanical and physical, gradually change.St. Petersburg State University of Technology ...

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Section: Safety/hazardousness Of Pcm In Usementioning

confidence: 99%

Section: Safety/hazardousness Of Pcm In Usementioning

confidence: 99%