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2. Twinwall plastic - Wikipedia

   en.wikipedia.org/wiki/Twinwall_plastic

   Roofing sheets made from twinwall plastic are primarily 10mm thick, however, they are also available in greater thicknesses such a 16mm, 25mm and 35mm. Any thickness over 10mm would usually be called a Multiwall Plastic Sheet due to having multiple internal layers. Twinwall plastic can refer to several different extruded polymers including:

3. Polycarbonate - Wikipedia

   en.wikipedia.org/wiki/Polycarbonate

   Other applications, including polycarbonate sheets, may have the anti-UV layer added as a special coating or a coextrusion for enhanced weathering resistance. Polycarbonate is also used as a printing substrate for nameplate and other forms of industrial grade under printed products. The polycarbonate provides a barrier to wear, the elements ...

4. Diethyl pyrocarbonate - Wikipedia

   en.wikipedia.org/wiki/Diethyl_pyrocarbonate

   Diethyl pyrocarbonate (DEPC), also called diethyl dicarbonate (IUPAC name), is used in the laboratory to inactivate RNase enzymes in water and on laboratory utensils. It does so by the covalent modification of histidine (most strongly), lysine, cysteine, and tyrosine residues.

5. Abbe number - Wikipedia

   en.wikipedia.org/wiki/Abbe_number

   Values of range from below 25 for very dense flint glasses, around 34 for polycarbonate plastics, up to 65 for common crown glasses, and 75 to 85 for some fluorite and phosphate crown glasses. Most of the human eye's wavelength sensitivity curve, shown here, is bracketed by the Abbe number reference wavelengths of 486.1 nm (blue) and 656.3 nm (red)

6. CR-39 - Wikipedia

   en.wikipedia.org/wiki/CR-39

   CR-39 is made by polymerization of ADC in presence of diisopropyl peroxydicarbonate (IPP) initiator.The presence of the allyl groups allows the polymer to form cross-links; thus, it is a thermoset resin.

7. Carbon nanotube - Wikipedia

   en.wikipedia.org/wiki/Carbon_nanotube

   In the Russian Doll model, sheets of graphite are arranged in concentric cylinders, e.g., a (0,8) single-walled nanotube (SWNT) within a larger (0,17) single-walled nanotube. In the Parchment model, a single sheet of graphite is rolled in around itself, resembling a scroll of parchment or a rolled newspaper. The interlayer distance in multi ...