Mesoporous aluminosilicates (MAs) with high hydrothermal stability had been synthesized via assembly of typical microporous zeolite Y precursors. However, the high consumption amount of the P123 template and water is still an obstacle to its industrial application. Synthesis of hydrothermally stable mesoporous aluminosilicates (MAs) in a high-concentration-template solution is a promising strategy to decrease the consumption amount of organic template and water. A means to prevent the clumping of micelles in the high-concentration system is of vital importance in the synthesis of MAs. In the present investigation, the goal was achieved by the introduction of a cotemplate with a high hydrophilic−lipophilic balance (HLB) value into F68 micelles. The effect of a cotemplate with different HLBs on the physicochemical properties of MA products was investigated. Compared with cotemplate sodium dodecyl dimethylbenzene sulfonate (SDMBS) of HLB 9.7 and fatty alcohol polyoxyethylene ether-9 (AEO-9) of HLB 13.5, octyl phenol polyoxyethylene ether-10 (OP-10) of HLB 14.1 favored the formation of well-crystallized MAs with maximum integrated intensity, surface area, and hydrothermal stability. The improvement of physicochemical properties could be attributed to the increase in overall hydrophilicity of composite micelles. As a result of this, well-ordered MAs were obtained with greatly decreased consumption of F68 and water.

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As a novel kind of focus tunable lens, dielectric elastomer actuated liquid lens has a compact structure, fast response, low cost, and outstanding tunability, which makes it attract extensive attention. Here, we present a computational model of a dielectric elastomer actuated lens with dual chambers that consist of three elastic membranes and two disconnected chambers filled with conductive and transparent liquid. The intermediate layer actuated by applied voltage deforms, changing the curvature of passive membranes and obtaining a new focal length. The simulation results calculated by the shooting method with two guessed values agree well with the experimental results. Based on this model, the effects of a set of parameters, including chamber radii, shear modulus, permittivity, prestretch ratios, and injected liquid volumes, on the tuning performance of the lens are analyzed. It is found that, by regulating the liquid volume in each chamber, both the initial focal length and the tuning range can be adjusted easily. Under the condition with specific liquid volumes, the lens possesses both positive and negative focal length during voltage actuation, indicating promoted tuning performance, which is acclaimed for optimal design.

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