Fabrication of optical elements using a rapid UV-curable and low-viscosity polymer material

2013 ◽  
Author(s):  
Man Zhang ◽  
Zhiwei Li ◽  
Xiaochun Dong ◽  
Lifang Shi ◽  
Qiling Deng ◽  
...  
Keyword(s):  
Polymer Material ◽  
Optical Elements ◽  
Uv Curable ◽  
Low Viscosity ◽  
Viscosity Polymer

scholarly journals Self-powered multifunctional sensing based on super-elastic fibers by soluble-core thermal drawing

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Mengxiao Chen ◽  
Zhe Wang ◽  
Qichong Zhang ◽  
Zhixun Wang ◽  
Wei Liu ◽  
...  
Keyword(s):  
Polymer Fibers ◽  
Elastic Fibers ◽  
Triboelectric Nanogenerator ◽  
Large Area ◽  
Manufacturing Method ◽  
Low Viscosity ◽  
Ion Movements ◽  
Self Powered ◽  
Thermal Drawing ◽  
Viscosity Polymer

AbstractThe well-developed preform-to-fiber thermal drawing technique owns the benefit to maintain the cross-section architecture and obtain an individual micro-scale strand of fiber with the extended length up to thousand meters. In this work, we propose and demonstrate a two-step soluble-core fabrication method by combining such an inherently scalable manufacturing method with simple post-draw processing to explore the low viscosity polymer fibers and the potential of soft fiber electronics. As a result, an ultra-stretchable conductive fiber is achieved, which maintains excellent conductivity even under 1900% strain or 1.5 kg load/impact freefalling from 0.8-m height. Moreover, by combining with triboelectric nanogenerator technique, this fiber acts as a self-powered self-adapting multi-dimensional sensor attached on sports gears to monitor sports performance while bearing sudden impacts. Next, owing to its remarkable waterproof and easy packaging properties, this fiber detector can sense different ion movements in various solutions, revealing the promising applications for large-area undersea detection.

Preparation and properties of star-shaped UV-curable polyester methacrylate resins with Low viscosity derived from renewable resources

2021 ◽  
Vol 157 ◽  
pp. 106324
Author(s):  
Zefei Yuan ◽  
Qiaochu Liu ◽  
Xueyi Pan ◽  
Jiao Wang ◽  
Ming Jin ◽  
...  
Keyword(s):  
Renewable Resources ◽  
Uv Curable ◽  
Low Viscosity

UV-Curable SiO2–TiO2 Films for the Realization of Diffractive Optical Elements

2011 ◽  
Vol 11 (1) ◽  
pp. 195-199 ◽  
Author(s):  
Samuele Gardin ◽  
Gioia Della Giustina ◽  
Giovanna Brusatin ◽  
Raffaella Signorini
Keyword(s):  
Tio2 Films ◽  
Diffractive Optical Elements ◽  
Optical Elements ◽  
Uv Curable

Three-Dimensional Finite Element Analysis of Polymer Coextrusion through Cylindrical Channel

2011 ◽  
Vol 291-294 ◽  
pp. 542-546
Author(s):  
Min Zhang ◽  
Chuan Zhen Huang ◽  
Sheng Sun ◽  
Yu Xi Jia ◽  
Tian Jiang Liang
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Outer Region ◽  
Polymer Melt ◽  
High Viscosity ◽  
Element Analysis ◽  
Low Viscosity ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Viscosity Polymer

The eccentricity coextrusion flow of polymer melt was analyzed based on finite element simulations. Such simulated results as the fields of flow velocity, pressure and shear stress were obtained. Through the analysis of the results, the mechanism of the column interface forming in the axis-symmetry coextrusion flow path was obtained. For the coextrusion flow, if the low viscosity polymer flows near the die wall, the flow would be steady. Whereas, if the polymer with low viscosity is in the core and the high viscosity polymer at the outer region, Which is disadvantage in terms of energy, and the instability flow would occur. This is also accord with the least energy consume theory.

Study on the Combination Mechanism of the Water-Based UV Curable Ink and Paper

2015 ◽  
Vol 731 ◽  
pp. 488-491
Author(s):  
Fu Qiang Chu ◽  
Yu Xin Liu ◽  
Chang Li Xu
Keyword(s):  
Uv Curing ◽  
Curing Process ◽  
Double Bonds ◽  
Negative Effects ◽  
Uv Curable ◽  
Low Viscosity ◽  
Water Based ◽  
Ft Ir ◽  
Epoxy Acrylate Prepolymer

The bonding mechanism between water-based UV curable ink and active groups on paper’s fiber during curing process was studied in this paper. Low viscosity water-based UV-cured resin was synthesized by epoxy resins, epoxy diluent, acrylic acid and maleic anhydride in the presence of catalyst. The viscosity of the synthesis system and synthetic products were significantly reduced when epoxy diluent was added to replace parts of the epoxy resin. Epoxy diluent was very useful in reducing the viscosity of the product, but over-dose would have negative effects on the quality of the cured film. The water-based epoxy acrylate prepolymer was used as the substitution for the ink to investigate the binding mechanism between the active groups of prepolymer and fiber under UV irradiation. The prepolymer and photoinitiator were mixed and the mixture was diluted to an appropriate viscosity by a small amount of water, then printed on the paper by the method of analog printing and curred by UV curing machine. The printed paper was used to extract lignin by enzymatic/mild acidolysis. FT-IR was used to characterize the changes of the active groups in lignin. The results showed that the changes of active groups in lignin were founded in the existence of ultraviolet and photoinitiator, which consistent with the change of double bonds in prepolymer. The free radicals produced by photoinitiator in curing process not only promoted the double bonds to polymerize, but also accelerated the active groups of lignin binding. Experiments show that chemical bonds exist between them.

Preparation of High-Solids UV-Curable Actylate Pressure-Sensitive Adhesive with Low Viscosity for Printed Electronics

2014 ◽  
Vol 644-650 ◽  
pp. 4936-4940
Author(s):  
Yan Yan Cui ◽  
Guang Xue Chen
Keyword(s):  
Printed Electronics ◽  
High Solids ◽  
Pressure Sensitive Adhesive ◽  
Uv Curable ◽  
Ink Jet Printing ◽  
Pressure Sensitive Adhesives ◽  
Low Viscosity ◽  
Pressure Sensitive ◽  
Ink Jet ◽  
Jet Printing

If the pressure sensitive adhesive is coated on the back, it can be used for bonding electronic tag, overburden, protective layer, and RFID layer. The acrylate pressure sensitive adhesives are simple and less pollution, so more and more companies pay attention on this kind of binder. Since the thickness of adhesive layer is relatively small, ink-jet printing is now widely used to easily obtain thin layer and design the pressure sensitive adhesive shape of different parts. So how to get superior performance pressure sensitive adhesive which is suitable for ink-jet printing become an urgent problem in printed electronics. The experiment was conducted through solution copolymerization of various vinyl monomers which were selected on the principle of solvent parameter prepared by free radical polymerization. The monomer, initiator mixture solution was dropped in continuous and synchronization process. By regulating the amount of initiator and polymerization temperature, we could effectively reduce the system viscosity and prepare high quality high-solids acrylate UV-curable pressure sensitive adhesives with low viscosity for ink-jet printing. The influence of initiator, solvents, transfer reagents and temperature on the structure and properties of the resin were discussed.

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