By Smithers Rapra
As uncooked fabric charges proceed to pose an important monetary problem to brands in excessive quantity markets, end-users are more and more sourcing novel fabrics that characterize inexpensive choices to conventional offerings. Responding to the desires of the polymeric foam undefined, this technical briefing offers a discussion board and plentiful networking possibilities for specialists to exhibit, and delegates to find new fabrics and processing applied sciences that would enhance present software functionality - concentrating on the call for for greater functionality and decrease expenses.
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Additional info for Blowing Agents and Foaming Processes 2011
They all have very low global warming potential and negligible ozone depletion potential. In this study, we continued our investigations of AFA-L1, a liquid under ambient conditions, focusing on solutions for the appliance sector. Our work over the past several years has shown AFA-L1 to be a candidate for HFC-245fa and hydrocarbon replacement. We have compared the performance, using an Edge Sweets High Pressure foam machine, of AFA-L1 compared to HFC-245fa in a more typical Pour-inPlace formulation.
For comparative purposes, typical scanning electron micrographs of the cellulose fibre-PP foams are shown in Figure II. Table II: Cellular structure characterization results. 43 of relative density PP-20PATF and (f) PP25PATF CO2 dissolution composite foams. Although all the cellulose fibre composite foams globally displayed comparable cell sizes (around 130 m), considerable differences were observed regarding their cellular structure depending on the amount and type of fibre. Particularly, the incorporation of the UTF fibres resulted in the foams with the highest cell sizes and hence lowest cell densities of all the cellulose fibre-reinforced PP foams, promoting the formation of opencell anisotropic cellular structures (see Figure II(a)).
0 * Tg measured in tan ** E’ taken at 20 ºC No significant differences were observed regarding the Tg between the unfilled and MMT-reinforced foams. 5 ºC of PPr to 7 and 12 ºC respectively for the solid and foamed composites. These higher values were related to a lower molecular mobility of the amorphous portion of PP induced by the cellulose fibres. % PATF). Also, the addition of similar amounts of chemically-treated PATF fibres resulted in composites with a higher Tg when compared to the respective UTF-filled ones, once again related to a lower PP mobility in the PATF composites due to a higher interaction between the PATF fibres and PP, as expected based on their higher surface area.
Blowing Agents and Foaming Processes 2011 by Smithers Rapra