Car interior application

In a study on the thermal and UV ageing of two commercial polyfoxymethy-lene) (POM) samples, one of which was a copolymer (see related study discussed later under Section 4.3, thermogravimetric analysis (TGA)), used in car interior applications, involving both DSC and TGA, isothermal OIT measurements were made at several different temperatures [8]. One conclusion from this study was that "extrapolation of the OIT data from high temperatures (molten state) to ambient temperatures in the solid state does not reflect effective antioxidant performance at room temperature", and thus measurements close to the melting point are not appropriate for reliable lifetime estimations. 

The same fiber properties that make w-aramids suitable for protective apparel applications find utility in thermal and flame-resistant barrier fabrics found in transportation (aircraft, train, and automobile) end-uses and in contract furnishings for hotels, offices, auditoriums, hospitals, and day care centers. Fabrics involved in aircraft and railroad car interior applications include upholstery, floor coverings, bulkheads, wall coverings, and blankets. 

Metallocene based polyolefins and polyolefin elastomeric compositions (POE) are often noted in supplier product literature to exhibit useful (and commercially viable) properties in blends with other polyolefins. Metallocene based polyethylene has also been noted to have the potential to replace the LLDPE/LDPE blends that are employed in a myriad of film applications [32 ]. PP/metaUocene ethylene-a-olefin copolymer blends for car interior applications have been noted [33 ]. MetaUocene-LLDPE blends with HDPE have been proposed for heavy-duty industrial grade bags as well as food packaging films [34]. Exxon-Mobil product literature notes the utility and ease of blending the metallocene LLDPE Exceed with other polyolefins. PP/POE blends showed similar mechanical properties and lower viscosity than the more conventional PP/EPDM blends [35]. Polyolefin plastomers (POP) imder the tradename Affinity GA were introduced by Dow as a polymer blend additive to improve the flow without loss of... 

The cushioning and soft-feeling properties required for some car interior applications were achieved by matrix modification as well as by the structural parameters affecting the compression-deflection of the foamed material (i.e. density, open cell content, cell size). 

Long Fiber-Reinforced Thermoplastic Styrene Resins for Car Interior Applications... 

Future demand for POM will, however, be sustained by product and applications development. In automotive markets, POM is expected to make further inroads in under-the-bonnet, electrical systems and interior applications. The use of POM for car interior applications for example, should be boosted by the development of odour-free products, which overcome the problem of odour emissions previously associated with use of polyacetal inside the car. Other interesting product developments expected to encourage greater use of POM in the car include the use of so-called outsert technology (metal-plastic composites), and the combination of POM with injection moulded soft components, including NBR rubber and polyester elastomers. 

Interior applications is the second biggest area of application for POM in automotive. In the car interior applications market, acetal is mainly used for door handles, lock mechanisms, loudspeaker grilles, parts for safety systems, sun roof systems, fasteners, manual window systems and seat release buttons. 

Esters of trimellitic (1,2,4-benzenetricarboxylic acid) anhydride provide excellent resistance to volatile loss and oxidation under heat ageing conditions making them the material of choice in applications for which high-temperature thermal stability is required. Insulation for automotive and aircraft cables are typical areas of application. The low volatility of trimellitates is also exploited in car interior components. 

By 1985, it has been predicted that interior applications for plastics will amount to 108 lb./car and exterior applications for plastics, to 154 lb./car, giving a total of 262 lb./ car (excluding under the hood applications), of the exterior applications it can be expected that the combined RIM and RRIM markets for steel replacement will amount to approximately 7% of the total and 12% of the exterior applications. 

The incorporation of polyesters into interior applications is driven largely by its compatibility with other materials in the car such as upholstery and carpeting. As recycling is becoming increasingly important, trends toward the use of compatible materials such as these will undoubtedly advance. 

For interior applications in public transport, another blend has gained widespread use — acrylic/PVC parts made by thermoforming. Its extruded sheets see use as benches, seat backs, armrests and window reveals for subways, railroad cars, buses, monorails and trolleys. Key properties that this alloy possesses include scratch and scuff resistance, and the ability to be cleaned easily using harsh detergents. 

The choice of binders for the topcoat depends on the end use of the coil-coated metals. Acrylic topcoats were developed earliest, and are widely used indoors for surfaces that are not exposed to water, chemicals, or mechanical stress. Polyester coil coatings provide a good general-purpose finish, and can be used for a wide range of applications (e.g., car interiors and accessories, caravan exteriors, domestic appliances). Tough, abrasion-resistant, and durable general-purpose finishes can be formulated with polyurethane and polyester resins in combination. 

With GIT injection molding (c) hollow parts with a defined smooth outer surface can be produced. Areas of application include suitcase handles, gripping handles in car interiors, garden tables, hollow-seamed ribbed feet (avoidance of sink marks). 

In the construction industry, residual solvent evaporation becomes an increasingly more critical issue, especially in the case of products used for indoor applications. Sealants, adhesives, and paints are now a major focus of this concern since they contribute to indoor pollution. Similar trends are observed in the automotive industry where both solvents and plasticizers are suspected of contributing to a plastics odor in car interiors. 

Main fields of application frost-resisting cables, aircraft car interior, flooring, films, paints, food wrap, pharmaceutical coatings, packaging materials, medical, synthetic leather ... 

Although the first two of these problems can be partly overcome by fibre surface treatments, the application of natural fibre-based composite parts in automotive has so far largely been limited to car interiors, and developments for exterior applications have been restricted. 

Thus,forexample,forthe waterpressurep = 4000bar, the velocity = 805-875 m/s is achieved. With such high-energy plain waterjet, soft materials can be cut. Typical applications are seals, foam, rubber, car interior equipment, wood, plastic, paper products, or frozen food products. 

Mixed Plastics from Household Waste Plastics from Industrial Sectors Concepts for Car Interiors TPO Based Materials Synthetic Leather Eoam Sheets Technologies Automotive Applications Dashboard Eloor Covering Other Components Conclusions References... 

A major application of thermoplastic composites of this type has been in exterior automotive body parts such as filler panels and bumper covers. These composites are also used for interior parts of automotive b y such as car interior side panels, front panel, door interior, etc. For constructional applications these composites can suitably replace interior housing panels including patio and window panels. They can also be used for injection molded furniture. 

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