Er3+ and Sr(Bi0.5Nb0.5)O3-modified (K0.5Na0.5)NbO3: A new transparent fluorescent ferroelectric ceramic with high light transmittance and good luminescence performance

Transparent insulation materials have been extensively used in building windows and solar collector covers. Glass and plastic sheets are long-established insulators while aerogel is a promising material due to its high light transmittance and low thermal conductivity. Optical properties of aerogels, glass, and plastic sheets are measured with a spectrophotometer. Solar transmittance and light transmittance are calculated from the measured optical properties in accordance with the standard spectral data. Normal-direct transmittances and normal-hemispherical transmittances of different materials are compared. Specific surface area and pore size distribution of aerogels are measured with the Brunauer-Emmett-Teller method. The correlation between the optical properties and nanoscale structure features of aerogels is investigated.

Download Full-text

Ultraviolet high-transmitting cross-linked polymer materials derived from mercaptopropyl polyhedral oligomeric silsesquioxane

e-Polymers ◽

10.1515/epoly-2015-0079 ◽

2015 ◽

Vol 15 (5) ◽

pp. 287-291 ◽

Cited By ~ 1

Author(s):

Sun Fuqian ◽

Wang Xiaoyu ◽

Deng Zhaoyang ◽

Zeng Guoping

Keyword(s):

Thermal Analysis ◽

Glass Transition ◽

Hybrid Composite ◽

Glycidyl Methacrylate ◽

Polyhedral Oligomeric Silsesquioxane ◽

High Light ◽

Polymer Materials ◽

Light Transmittance ◽

Volumetric Shrinkage ◽

Oligomeric Silsesquioxane

AbstractIn this paper, several cross-linked polymer materials with high light-transmitting properties are presented. First, mercaptopropyl polyhedral oligomeric silsesquioxane (POSS-SH) was synthesized via the hydrolytic condensation of 3-mercaptopropyl triethoxysilane. Then, glycidyl methacrylate (GMA) and allylmethacrylate were allowed to polymerize with POSS-SH, yielding a hybridized composite. The volumetric shrinkage, thermal, and light-transmitting properties of the materials were studied and investigated using a pycnometer, differential scanning calorimeter, and ultraviolet visible spectrophotometer. The results indicated that POSS-SH decreased the volumetric shrinkage of the GMA-based materials. Thermal analysis indicated that the glass transition temperature (Tg) of the hybrid composite decreased as the POSS-SH content increased, while the Tc and Tm of the hybrid composite increased slightly. The light transmittance of the hybrid composite increased as the POSS-SH content increased. When the POSS-SH content increased to 42.9%, the hybrid composite exhibited average light transmittance values of 96% at wavelengths ranging from 200 to 400 nm and 97% at wavelengths ranging from 400 to 800 nm.

Download Full-text

Preparation and Properties Study of PVA/Bamboo Cellulose Composite Membrane

Materiale Plastice ◽

10.37358/mp.21.4.5527 ◽

2022 ◽

Vol 58 (4) ◽

pp. 19-27

Author(s):

Peng Jian Xiang ◽

Zhu Xiao Rao ◽

Sun Shi Dong ◽

Zhu He Ping

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Composite Film ◽

Composite Membrane ◽

High Light ◽

Bamboo Fiber ◽

Light Transmittance ◽

Transparent Material ◽

Reinforcing Material ◽

Cellulose Composite

The effect of bamboo fiber content on mechanical properties, moisture permeability and light transmittance of composite membrane was studied. The results show that the tensile strength of the composite film is increased by 30%, and the mechanical properties of PVA film are improved obviously with the addition of bamboo cellulose, which can be used as a good reinforcing material of PVA matrix. Bamboo cellulose composite film is a kind of transparent material because of its high light transmittance.

Download Full-text

L-Lysine-Based Dendritic Gelator Modified PMMA Nanocomposite

Materials Science Forum ◽

10.4028/www.scientific.net/msf.815.539 ◽

2015 ◽

Vol 815 ◽

pp. 539-544

Author(s):

Feng Ye ◽

Guo Dong Tang ◽

Si Chen ◽

Bo Zhen Wu ◽

Meng Ma ◽

...

Keyword(s):

Impact Strength ◽

Self Assembly ◽

Thermal Polymerization ◽

High Light ◽

The Self ◽

Light Transmittance ◽

Pure Pmma ◽

Nano Composite ◽

And Storage ◽

Gel Network

L-lysine-based dendritic gelator(G3-C12-G3) was successfully designed and synthesized using a divergent approach and it can self-assemble into nanofibers in MMA followed by gelation. After thermal polymerization of MMA gels, the self-assembly nanofibers modified PMMA nanocomposite can be obtained. SEM studies indicate the embedded supra molecular nanofibres joint each other and form a relative intact gel networkskeleton in PMMA matrix. Impact strength and DMTAmeasurementindicatethe existence of gel network skeleton make PMMA nanocomposite had higher impact strength and storage modulus than pure PMMA. UV-vis spectrophotometer studies indicate PMMA nano-composite retains high light transmittance.

Download Full-text

Improving Gravure Plate-Making Method to Printing Transparent Conductive Film

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1033-1034.1135 ◽

2014 ◽

Vol 1033-1034 ◽

pp. 1135-1141

Author(s):

Jian Dong Lu ◽

Pu Jun Deng ◽

Lu Hai Li ◽

Jun Ran

Keyword(s):

Electronic Material ◽

Production Method ◽

High Light ◽

Light Transmittance ◽

Gravure Printing ◽

Transparent Conductive Film ◽

Direct Printing ◽

Conductive Film ◽

Metal Grid ◽

Printing Method

The metal grid transparent conductive film is a kind of important electronic material. The production method is a valuable topic. Gravure printing, as one direct-printing method, is suitable for printing the metal grid transparent conductive film, according to gravure printing principle. This paper focuses on improving gravure plate to print the metal grid transparent conductive film. Firstly, the nano-sliver grid transparent conductive film is printed by electronic engraving plate and laser ablation plate. Then, according to the analysis result that the resistivity of the nano-sliver grid transparent conductive film printed by two general plates is too high to meet the requirements of the transparent conductive film, the general plate-making methods is improved to make the new gravure plate. Last, the metal grid transparent conductive film, with relatively high light transmittance and low resistivity which meet the requirements of the transparent conductive film , is printed by the improved plate.

Download Full-text