The coating will darken over time and the coating thickness will decrease slightly as the fibre is used. PA coatings have moderate thermal stability. The phase has a high affinity for aromatic compounds and oxygenated analytes. This polymer is more rigid than PDMS or PEG, so the migration in and out of this coating is slightly slower. This fibre is fairly universal for extraction of a wide range of analytes, both polar and non-polar. Shirey, in Handbook of Solid Phase Microextraction, 2012 4.3.3.4 PA Coating Some of these problems can be overcome by blending acrylic resin with other higher bond strength additives.
Hard molded armor using thermoplastic acrylic coating on high performance ballistic materials shows good ballistic performance against fragments, but usually shows higher delamination when tested against handgun bullets. By proper choice of thickener the rheology properties can be optimized for low resin content. Thickeners are commonly used in acrylic emulsions. Acrylic resins are known for good UV and oxidative stability. Viscosity in both the systems can be designed to meet the low resin content prepregs made of either fabrics or unitape fiber prepregs ballistic molding applications. Most of the commercial processes are free-radical-type additional reactions conducted at elevated temperature in the presence of an initiator.Īcrylic resins are available in solvent-based systems and as aqueous emulsions. W PATAKI, in Lightweight Ballistic Composites, 2006 10.11.1 Acrylic resinsĪcrylic resins are synthesized from a wide selection of acrylic and methacrylic ester monomers and low level of monomers having other functional groups.
0 kommentar(er)
