A superhydrophobic surface with aging resistance, excellent mechanical restorablity and droplet bounce properties

Soft Matter ◽  
2020 ◽  
Vol 16 (23) ◽  
pp. 5514-5524 ◽  
Author(s):  
Guangfei Wang ◽  
Jin Zhou ◽  
Meimei Wang ◽  
Yanbin Zhang ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Silicone Rubber ◽  
Superhydrophobic Surface ◽  
Aging Resistance

Superhydrophobic silicone rubber materials have special microstructures and show excellent mechanical properties.

Measurement and Calculation of Mechanical Properties of Silicone Rubber

2021 ◽  
Vol 63 (9) ◽  
pp. 1525-1529
Author(s):  
S. A. Muslov ◽  
D. I. Polyakov ◽  
A. I. Lotkov ◽  
A. G. Stepanov ◽  
S. D. Arutyunov
Keyword(s):  
Mechanical Properties ◽  
Silicone Rubber

scholarly journals Preparation and properties of silicone rubber materials with foam/solid alternating multilayered structures

2021 ◽  
Author(s):  
Wenhuan Zhang ◽  
Zhaoping Deng ◽  
Hongwei Yuan ◽  
Shikai Luo ◽  
Huayin Wen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Silicone Rubber ◽  
Cellular Structure ◽  
Cellular Structures ◽  
Compressive Property ◽  
Solid Layer ◽  
Multilayered Structures ◽  
Element Analysis ◽  
Morphology And Mechanical Properties

AbstractIn this paper, silicone rubber materials with foam/solid alternating multilayered structures were successfully constructed by combining the two methods of multilayered hot-pressing and supercritical carbon dioxide (SCCO2) foaming. The cellular morphology and mechanical properties of the foam/solid alternating multilayered silicone rubber materials were systematically studied. The results show that the growth of the cell was restrained by the solid layer, resulting in a decrease in the cell size. In addition, the introduction of the solid layer effectively improved the mechanical properties of the microcellular silicone rubber foam. The tensile strength and compressive strength of the foam/solid alternating multilayered silicone rubber materials reached 5.39 and 1.08 MPa, which are 46.1% and 237.5% of the pure silicone rubber foam, respectively. Finite element analysis (FEA) was applied and the results indicate that the strength and proportion of the solid layer played important roles in the tensile strength of the foam/solid alternating multilayered silicone rubber materials. Moreover, the small cellular structures in silicone rubber foam can provided a high supporting counterforce during compression, meaning that the microcellular structure of silicone rubber foam improved the compressive property compared to that for the large cellular structure of silicone rubber foam.

scholarly journals Continuous Blown Film Preparation of High Starch Content Composite Films with High Ultraviolet Aging Resistance and Excellent Mechanical Properties

Polymers ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3813
Author(s):  
Bowen Lin ◽  
Chengqiang Li ◽  
Fangping Chen ◽  
Changsheng Liu
Keyword(s):  
Mechanical Properties ◽  
Lignin Content ◽  
Starch Content ◽  
Composite Films ◽  
Oh Groups ◽  
Longitudinal Tensile Strength ◽  
High Starch Content ◽  
Aging Resistance ◽  
High Starch ◽  
Ultraviolet Aging

Starch/PBAT blown films with high ultraviolet aging resistance and excellent mechanical properties were prepared by introducing lignin with polyurethane prepolymer (PUP) as a starch modifier and physical compatibilizer and 4,4′–methylene diphenyl diisocyanate (MDI) as a crosslinker. Starch was modified by reacting the NCO groups of the PUP with the OH groups of the starch to form a carbamate bond. The mechanical properties, hydrophobic properties, ultraviolet barrier, ultraviolet aging properties and microscopic morphology of starch/PBAT films with different contents of lignin were investigated. The results showed that the starch/PBAT films were blown continuously. The addition of lignin did not decrease the mechanical properties. On the contrary, the film with 1% lignin possessed the excellent mechanical properties with longitudinal tensile strength of 15.87 MPa and the elongation at a break of 602.21%. In addition, the higher the lignin content, the better the UV blocking effect. The introduction of lignin did not affect the crystalline properties but improved the hydrophilic properties and sealing strength of the high starch content composite films.

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