Isolation laminated structure

The recycled plastic will also have a degree of different contaminants that would eliminate its use in certain devices or products, such as in medicine, electronics, and food packaging. However, within these market applications there are acceptable designs with three-layer coextruded, coinjected, or laminated structures having the contaminated plastic as the center layer, isolated by clean plastics around it and no migration occurring. 

The primary quantum conversion act of photosynthesis in chemical terms is an ionization occurring in a charge transfer complex (28). But this cannot occur in isolated charge transfer molecules in solution or in a homogeneous single phase crystal because the products cannot escape from each other. The primary quantum conversion act as it occurs in modern photosynthesis can only take place in a laminated structure where the electrons and holes can escape from each other by electron migrations and not by atomic migrations (74). (For a discussion of the evolution of photosynthetic mechanisms, see Calvin, 74). 

Microspectroscopy applies the identification power of infrared spectroscopy to the microscopic realm. Contaminants on printed circuit boards, blemishes in coatings, and other production defects can be isolated in situ and analyzed (see Electronics, coatings). Analysis of flaws that develop during use illuminates the method of failure. Microscopic samples, such as particulates filtered from air, can be analyzed individually. The forensic applications are many paint chips, single fibers, explosive residues, and inks on currency can all be identified nondestmctively (see Forensic chemistry). The structures of layered materials, such as laminated polymer films, are studied via microspectroscopy by cross-sectioning the materials and examining the individual layers edge on (47). 

The meat-like appearance in spun protein isolates results from strands of parallel fibers, but in extruded SFs, SPCs, and SPI, the meat-like structure is created from multi-laminate palisade layers. Extruder-texturized proteins are readily acceptable to... 

As long as the adhesives used were transparent (no spherulitic structure present as seen by microscopy), the energy absorbed by the laminates was essentially the same. The 1.0 butanediol content polymer was nontacky, indicating some embrittlement. It was also translucent, attributed to isolated spherulites seen in Figures 5 and 6. The lowered impact resistance is in agreement qualitatively with earlier observations on the effect of brittle adhesives. 

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