Email the 精品无码国产自产 Electron Microscopy Centre at emc@plymouth.ac.uk.
You can also call the PEMC team on +44 1752 588908
Company background
Ramer Ltd have been manufacturing pva sponges in the UK for over 70 years, using their proprietary Ramerfoam庐 Technology for applications including personal and super-soft baby care (fig. 1) and a wide-range of specialist grades. Still a family-owned and run business, they鈥檙e based in Devon, supplying products around the globe.
What did they want?
Ramer are keen to further develop their sponge grades for technical applications where their physical properties are desired. Understanding the physical structure of their material, in comparison with competing alternatives, would help the targeting of applications in new markets.
Agreed analysis plan
It was agreed that 精品无码国产自产 Electron Microscopy Centre (PEMC) would analyse three samples (two Ramerfoam庐 grades, and a competitor grade). Along with a general comparison of pore structures, cross sections would also be created using the FIB-SEM, to study the material structure between the pores.
Results
Initial observations of high and low density Ramerfoam庐 sponges showed that the microstructures were visually similar. Both exhibited similar surface features; similar cross-sections (sections created on the cell wall material between the pores); and similar pore structures. The competitor鈥檚 sponge sample showed a lower consistency of pore sizes, and a higher density of pores. However, the biggest difference was in the cell wall structure: the Ramerfoam庐 material had a more uniform and a denser cell wall in comparison with the competitor sample, which had a high number of tendril-like features, and a more open cell wall structure. This would help explain the higher measured water-holding capacity of Ramerfoam庐 over competitor鈥檚 materials.
鈥淲e have observed that Ramerfoam庐 exhibits a very high capacity for holding water within its cell walls, and has excellent non-particulating properties. This analysis provides evidence to explain why and how this is achieved, and how we can exploit these advantages to specifically target Ramerfoam庐 grades for additional technical applications.鈥
