Physical Properties of Hydrophobic Epoxy-Based Silsesquioxane (EP-POSS) Photovoltaic Materials

2021 ◽  
Vol 16 (1) ◽  
pp. 11-16
Author(s):  
Yanhong Fang ◽  
Ping Wang ◽  
Lifang Sun ◽  
Linhong Wang
Keyword(s):  
Power Generation ◽  
Physical Properties ◽  
Flame Retardancy ◽  
Theoretical Foundation ◽  
Light Transmittance ◽  
Photovoltaic Panels ◽  
Photovoltaic Materials ◽  
Hydrophobic Materials ◽  
Weather Resistance ◽  
Hydrophobic Material

With the increasing application of photovoltaic panels in the field of power generation, hydrophobic materials have gradually received attention from researchers. Because EP-POSS (epoxy-based silsesquioxane) has many excellent properties, such as transparency, hydrophobicity, flame retardancy and weather resistance, it may be widely used in photovoltaic power generation boards in the future. Therefore, it is important to study the physical properties of EP-POSS. This article studies the physical properties of synthesized EP-POSS, such as the light transmittance, adhesion, flame retardancy, surface energy, and dielectric properties. The results prove that EP-POSS is a hydrophobic material that can be applied to photovoltaic panels. This work laid a theoretical foundation for the application of EP-POSS as a hydrophobic material to photovoltaic panels.

DOCOL 700W

Alloy Digest ◽  
2010 ◽  
Vol 59 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Yield Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Resistance ◽  
Bend Strength ◽  
Weather Resistance

Abstract Docol W steels are weather resistant during outdoor use. These steels are designated according to their lowest yield strength. In addition to its weather-resistance properties, Docol W steels are characterized by high resistance to impact and wear, good formability, and weldability. This datasheet provides information on composition, physical properties, tensile properties, and bend strength. It also includes information on corrosion resistance as well as forming and joining. Filing Code: SA-616. Producer or source: SSAB Swedish Steel Inc.

scholarly journals Preparation and Applications of Super-hydrophobic materials

2018 ◽  
Vol 175 ◽  
pp. 01012
Author(s):  
Xiaohua Zhang ◽  
Shuqiong Xu
Keyword(s):  
Agricultural Production ◽  
Daily Life ◽  
People’S Daily ◽  
Hydrophobic Materials ◽  
Novel Material ◽  
People's Daily ◽  
Hydrophobic Material

In this paper, the formation principle of hydrophobic phenomenon, the preparation and applications of hydrophobic materials are introduced. The super-hydrophobic material is a novel material with wide application and prospect. The application of status of super-hydrophobic materials in industrial and agricultural production, medical and health fields and people's daily life, in recent years, which was studied, and the prospect of development was systematically summarized.

Foaming and Physical Properties, Flame Retardancy, and Combustibility of Polyethylene Octene Foams Modified by Natural Rubber and Expandable Graphite

2020 ◽  
Vol 26 (4) ◽  
pp. 423-433
Author(s):  
Karnjana Sawangpet ◽  
Alif Walong ◽  
Bencha Thongnuanchan ◽  
Azizon Kaesaman ◽  
Tadamoto Sakai ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Physical Properties ◽  
Flame Retardancy ◽  
Expandable Graphite

scholarly journals Variability of light transmission through Arctic land-fast sea ice during spring

2013 ◽  
Vol 7 (3) ◽  
pp. 977-986 ◽  
Author(s):  
M. Nicolaus ◽  
C. Petrich ◽  
S. R. Hudson ◽  
M. A. Granskog
Keyword(s):  
Sea Ice ◽  
Spatial Variability ◽  
Physical Properties ◽  
Snow Cover ◽  
Light Transmission ◽  
Ice Cores ◽  
Arctic Sea Ice ◽  
Optical Measurements ◽  
Light Transmittance ◽  
Seasonal Evolution

Abstract. The amount of solar radiation transmitted through Arctic sea ice is determined by the thickness and physical properties of snow and sea ice. Light transmittance is highly variable in space and time since thickness and physical properties of snow and sea ice are highly heterogeneous on variable time and length scales. We present field measurements of under-ice irradiance along transects under undeformed land-fast sea ice at Barrow, Alaska (March, May, and June 2010). The measurements were performed with a spectral radiometer mounted on a floating under-ice sled. The objective was to quantify the spatial variability of light transmittance through snow and sea ice, and to compare this variability along its seasonal evolution. Along with optical measurements, snow depth, sea ice thickness, and freeboard were recorded, and ice cores were analyzed for chlorophyll a and particulate matter. Our results show that snow cover variability prior to onset of snow melt causes as much relative spatial variability of light transmittance as the contrast of ponded and white ice during summer. Both before and after melt onset, measured transmittances fell in a range from one third to three times the mean value. In addition, we found a twentyfold increase of light transmittance as a result of partial snowmelt, showing the seasonal evolution of transmittance through sea ice far exceeds the spatial variability. However, prior melt onset, light transmittance was time invariant and differences in under-ice irradiance were directly related to the spatial variability of the snow cover.

Polyacrylates in Flame Retardant Treatments of Textile Fabrics

1984 ◽  
Vol 2 (3) ◽  
pp. 236-247 ◽  
Author(s):  
John V. Beninate ◽  
Brenda J. Trask ◽  
George L. Drake
Keyword(s):  
Glass Transition ◽  
Physical Properties ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Abrasion Resistance ◽  
Flame Retardants ◽  
Cotton Wool ◽  
Glass Transition Temperatures ◽  
Textile Fabrics ◽  
Tearing Strength

Durable phosphorus-based flame retardants containing polyacrylate emul sions were applied to cotton, cotton-polyester, and cotton-wool twill fabrics to study the effect of the added polyacrylates on the physical properties and flame retardancy. The Thps-urea-TMM flame retardant with added polyacrylate im parted better overall physical properties to 100% cotton fabric than to cotton blend fabrics. Treatments containing polyacrylates with low glass transition temperatures produced fabrics with the highest abrasion resistance, tearing strength and wrinkle recovery. The flame retardancy of treated fabrics was not adversely affected by the addition of polyacrylates to the flame retardant treatments.

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