Strong transparency

A newer development is the manufacture of bi-axially oriented bottles, in particular for PETP. The pre-form is injection- moulded and rapidly cooled in the mould it remains amorphous (PETP crystallises very slowly) by heating above its Tg (65°) it passes into the rubbery state, and can then be blown-up and, simultaneously, longitudinally stretched. The biaxial orientation thus obtained, accelerates the crystallisation, and, at the same time, results in a very fine crystalline texture, so that a thin-walled, strong, transparent and heat-resistant bottle is obtained. 

Cellulose acetate forms strong, transparent films and has enjoyed many applications such as photographic film, transparent tape, and blister packaging. It can also be spun into satin fibers. Satin not only means a somewhat shiny fabric woven from cellulose acetate fiber, but also refers to something with a soft texture, which the acetate fiber has. 

Fluorinated phthalide 297 has been used to prepare polyketones such as 298, by polymerization with bisphenol A 299. This example has a glass transition temperature of 215 °C and forms strong transparent films. Remarkably, this is a polymerization based on an aromatic substitution reaction (SN2Ar) <1997MC210>. 

FIGURE 22.4 Naturally occurring muscovite mica. The mechanical properties of crystals of mica are quite anisotropic. Thin sheets can be peeled off a crystal of mica by hand, but the sheets resist stresses in other directions more strongly. Transparent, thin sheets of mica, sometimes called isinglass, have been used for heat-resistant windows in stoves or in place of window glass. 

Polymeric solar cell with oriented and strong transparent carbon nanotube anode. Phys Status Solidi B 243 3528... 

Polyesters with two ester groups bonded to the same carbon are known as polycarbonates. Lexan is produced by the reaction of phosgene with bisphenol A. Lexan is a strong, transparent polymer used for bulletproof windows and traffic-light lenses. In recent years, polycarbonates have become important polymers in the automobile industry as well as in the manufacture of compact discs. 

Polystyrene is a hard, strong, transparent solid highly resistant to mechanical impact. It is an excellent thermal (heat) and electrical insulator, is easily shaped and molded in the liquid state, and takes dyes readily. It can be produced in a wide variety of shapes and forms, including sheets, plates, rods, beads, and foams. 

Dartek B-602. A strong transparent nylon film with PVDC coating applied to one side.P ... 

Strong transparency It is impossible to attend directly to our experience that is, we cannot attend to our experience except by attending to the objects represented by that experience. 

Strong transparency It is impossible to be aware of the intrinsic features of our experience. We can only be aware of the intrinsic features of the objects represented by our experiences. 

Both polymers can be solution cast onto Cu- or glass plates and crosslinked photochemically (e.g. with the Ta-catalyst C8, Scheme 9) or thermally (with arene ruthenium-phosphines of the type C3, Scheme 4, to give strong transparent films with low Tg values for P24 (-50°C) and P25 (-70°C) and relatively high Tg values for P26... 

Tough, strong, transparent and colorless. Resistant to hydrocarbon solvents, greases, oils... 

Zhang M, Fang S, Zakhidov A A, Lee S B, Aliev A E, Williams C D, Atkinson K R and Baughman R H (2005) Strong, transparent, multifunctional, carbon nanotube sheets, Science 309 1215-1219. 

Zhang, M., et al. (2005). Strong, Transparent, Multifunctional, Carbon Nanotube Sheets. Science, 309(5738), 1215-1219. 

The thermal and electrical conductivity is very high, and it can be used as a flexible conductor. Its thermal conductivity is much higher than that of silver. Graphene has a number of properties which makes it interesting for several different applications. It is an ultimately thin, mechanically very strong, transparent, and flexible conductor. Its conductivity can be modified over a large range either by... 

Coloured metallic basecoats are formulated using strong transparent light fast pigments predispersed in the polyester. 

A good basecoat is important in a COB system. Coloured metallic basecoats use strong, transparent, light fast pigments dispersed in an oil free polyester resin. As the film thickness is thin, relatively high levels of pigment are required to give deep metallic shades. 

There is interest in the use of biopolymers to replace plastics in packaging for reasons of biodegradability and that these are renewable resources [112]. Thermoplastic properties of wheat gluten have been studied by the application of DMA and DSC to gluten films. Strong, transparent and water-resistant films can be obtained by casting films from ethanol/acetic, acid/water solvents. Moreover, the water-vapour barrier properties could be improved by the incorporation of lipids. Similarly, the manipulation of the different fractions of gluten could also produce distinct characteristics. 

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