PDF Publication Title:
Text from PDF Page: 195
significantly lower than that of PEEK, in some cases the mass loss appears linear below 600 K. It is therefore suggested that the TGA data for samples processed for longer than 30 minutes show the thermal degradation of the PEEK decomposition products, and not that of the polymer. The absence of a sharp increase in thermal degradation rate at 848 K further implies that the polymer decomposition is essentially complete for reaction times in excess of 30 minutes. When the processing time is 0 minutes there is insufficient time for the decomposition to take place. However, prior to obtaining the reaction temperature of 623 K PEEK undergoes a transition to the melt phase at 616 K. Figure 47 and Figure 50 demonstrate that there is a synergistic effect between the ethanol and caesium carbonate concentrations. Experiments using 100 %v ethanol have shown that decomposition of the polymer did not take place, the solid samples were swollen but not degraded. It is known that Cs2CO3 is soluble in both water and ethanol, and also in mixtures of both solvents. It is suggested that ethanol / water mixture, being at its critical point, swells the PEEK allowing for an increased mass transport of the Cs2CO3 carried in the ethanol / water mixture into the PEEK structure. Similar material expansion and subsequent porosity has been identified with supercritical water (scH2O). This similarity in the expansion of PEEK is thought to be accountable for the ability of Cs2CO3 in ethanol / water mixtures to decompose PEEK at 80 K below what is possible with water / Na2CO3 solutions. When the reaction medium consists of ethanol and the reaction time is 0 minutes, an increase in the solid mass recovered from the reactor is observed. The SEM data have 194PDF Image | Supercritical Fluids and Their Application to the Recycling of High-Performance Carbon Fibre Reinforced Composite Materials
PDF Search Title:
Supercritical Fluids and Their Application to the Recycling of High-Performance Carbon Fibre Reinforced Composite MaterialsOriginal File Name Searched:
Dandy15PhD.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)