Green composite analysis

Figure 14.2 is an SWOT (strengths, weaknesses, opportunities and threats) analysis that summarises benefits and drawbacks of the use of green composites produced with natural fibres and bio-derived matrices to replace traditional composites. The benefits appear superior to the disadvantages and the market opportunities are increasing for many industrial sectors. 

Figure 14.2 SWOT analysis of the market of green composites compared to traditional composites.

Thakur, V. K., Singha, A. S., Mehta, I. K. (2010). Renewable resource-based green polymer composites Analysis and characterization,... 

Thakur VK, Singha AS, Mehta IK (2010) Renewable resource-based green polymer composites analysis and characteaization. Int J Polym Anal Charact 15(3) 137-146 Thakur VK, Thakur MK (2014a) Processing and characterization of natural cellulose fibers/thermoset polymta- composites. Carbohydr Polym 109 102-117 Thakur VK, Thakur MK (2014b) Recent trends in hydrogels based on psyllium polysaccharide a review. J Cleaner Prod 82 1—15... 

Thakur VK, Singha AS, Mehta IK (2010b) Renewable resource-based green polymer composites analysis and characterization. Int J Polym Anal Charact 15(3) 137-146. doi 10.1080/... 

Environmental Effects, Biodegradation, and Life Cycle Analysis of Fully Biodegradable Green Composites... 

IS. 22 Life Cycle Inventory Analysis of Green Composites I 551... 

The various spectral and physical properties of the compounds prepared, including their elemental analysis, and IR, NMR, and mass spectra (which contained the appropriate ions, each of the intensity demanded by the isotopic composition of the ion), all fully supported the formulation of the species as reported. With two exceptions, all of the new compounds were found to be colorless liquids, typically having a relatively short liquid range, and they are usually very volatile for their molecular weight. The two exceptions are (CFsliTe, which is yellow-green, and (CFsljTez, which is red-brown (21). 

Green L.R. and Hart F.A. (1987). Colour and chemical composition of ancient glass an examination of some Roman and Wealden glass by means of ultraviolet-visible-infra-red spectrometry and electron microprobe analysis. Journal of Archaeological Science 14 271-282. 

Thus, RP-HPLC-MS has been employed for the analysis of sulphonated dyes and intermediates. Dyes included in the investigation were Acid yellow 36, Acid blue 40, Acid violet 7, Direct yellow 28, Direct blue 106, Acid yellow 23, Direct green 28, Direct red 79, Direct blue 78 and some metal complex dyes such as Acid orange 142, Acid red 357, Acid Violet 90, Acid yellow 194 and Acid brown 355. RP-HPLC was realized in an ODS column (150 X 3 mm i.d. particle size 7 /.an). The composition of the mobile phase varied according to the chemical structure of the analytes to be separated. For the majority of cases the mobile phase consisted of methanol-5 mM aqueous ammonium acetate (10 90, v/v). Subsituted anthraquinones were separated in similar mobile phases containing 40 per cent methanol. The flow rate was 1 ml/min for UV and 0.6 ml/min for MS detection, respectively. The chemical structure of dye intermediates investigated in this study and their retention times are compiled in Table 3.28. It was found that the method is suitable for the separation of decomposition products and intermediates of dyes but the separation of the original dye molecules was not adequate in this RP-HPLC system [162],... 

Fig. 19. TLS analysis of the NCP, DNA, and histone core. In these ventral and dorsal views of the NCP model, the composite motion axes of the DNA, histones, and the NCP are shown in red, blue, and green, respectively. The center of motion axes for the DNA and the histones are non-coincident, the TLS axis for the DNA is furthest from the center of mass of the NCP. This may reflect the dominance of the DNA ends in the overall displacement of the DNA. The TLS analysis shows that DNA regions with high B-values, seen in Fig. 15, have little contribution to the overall motion of the DNA on the NCP. The overall motion of the NCP appears dominated by the DNA motion, with the TLS origin shifted in the direction and appearing congruent with the DNA. Overall, the primary axes of motion are in plane with the DNA, hence the interpretation that the composite motions are dominated by dynamic tension between the DNA and the histones, with deviation from these general motions the consequence of packing interactions.

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