Effect of incompletely condensed tri-silanol-phenyl-POSS on the thermal stability of silicone rubber

Gao, Xiaoxiao; Liu, Hanchao; Wei, Haitao; Zheng, Jian; Huang, Guangsu

doi:10.1007/s00289-018-2499-3

Cited by 25 publications

(10 citation statements)

References 40 publications

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“…This can be attributed to evaporation of volatile cyclic oligomers forming from PDMS chains by SiO bond scission 43,44 . Results of TGA‐FTIR analysis of sealant a corresponding to this 1st TGA peak, shown in Figure 8, are comparable to those seen in the literature 45 …”

Section: Resultssupporting

confidence: 80%

Structural silicone sealants after exposure to laboratory test for durability assessment

Wallau

Recknagel

Smales

2021

J of Applied Polymer Sci

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During the service life of structural sealant glazing (SSG) facades, the load‐bearing capacity of the silicone bonds needs to be guaranteed. Laboratory tests can assess the durability of SSG‐systems based on mechanical characteristics of the bond after simultaneous exposure to both climatic and mechanical loads. This article studies how the material characteristics of two common structural sealants are affected by laboratory and field exposure. Dynamic mechanical analysis (DMA) confirms a reduction in the dynamic modulus of exposed silicone samples. Results from thermogravimetric analysis, Fourier‐transform infrared spectroscopy, differential scanning calorimetry, and small‐angle X‐ray scattering/wide‐angle X‐ray scattering show differences between the two sealants and indicate no/minor changes in the composition and morphology of the laboratory and field exposed sealants. Mechanical characterization methods, such as DMA, and tensile and shear testing of the structural bond, are shown to be sensitive toward the combined climatic and mechanical loadings, and are hence suitable for studying degradation mechanisms of structural sealants.

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Section: Resultssupporting

confidence: 80%

Structural silicone sealants after exposure to laboratory test for durability assessment

Wallau

Recknagel

Smales

2021

J of Applied Polymer Sci

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“…33-0664) [ 25 ], and the non-existence of any further peak proved the emergence of the pure phase of hematite nanoparticles. As shown in the XRD pattern of PDMS/α-Fe 2 O 3 nanocomposite film, the amorphous halo at 2θ = 12° was the indication of the unaffected crystalline domain of the PDMS films [ 26 ], while the crystallinity was also preserved due to the insertion of α-Fe 2 O 3 nanoparticles. The XRD patterns affirmed the successful addition of pure α-Fe 2 O 3 nanoparticles into the pure PDMS to prepare the PDMS/α-Fe 2 O 3 nanocomposite with no alteration in the chemical composition.…”

Section: Resultsmentioning

confidence: 99%

α-Fe2O3 Nanoparticles Aided-Dual Conversion for Self-Powered Bio-Based Photodetector

Chakraborty

Lai

et al. 2022

Nanomaterials

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Eco-friendly energy harvesting from the surrounding environment has been triggered extensive researching enthusiasm due to the threat of global energy crisis and environmental pollutions. By the conversion of mechanical energy that is omnipresent in our environment into electrical energy, triboelectric nanogenerator (TENG) can potentially power up small electronic devices, serves as a self-powered detectors and predominantly, it can minimize the energy crisis by credibly saving the traditional non-renewable energy. In this study, we present a novel bio-based TENG comprising PDMS/α-Fe2O3 nanocomposite film and a processed human hair-based film, that harvests the vibrating energy and solar energy simultaneously by the integration of triboelectric technology and photoelectric conversion techniques. Upon illumination, the output voltage and current signals rapidly increased by 1.4 times approximately, compared to the dark state. Experimental results reveal that the photo-induced enhancement appears due to the effective charge separation depending on the photosensitivity of the hematite nanoparticles (α-Fe2O3 nanoparticles) over the near ultraviolet (UV), visible and near infrared (IR) regions. Our work provides a new approach towards the self-powered photo-detection, while developing a propitious green energy resource for the circular bio-economy.

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“…3OH-POSS was obtained by acid catalysis removing Na + from heptyltrisilanol sodium salt POSS (3ONa-POSS), which was prepared by the alkali-catalyzed incomplete hydrolytic condensation of phenyltrimethoxysilane. 21 The preparation of boron phenolic resin (BPR) and borosilicate phenolic resin (POSSBPR) is shown in Figure 2. Phenol and formaldehyde solution was reacted in a three-necked flask for 2 h to get salicyl alcohol.…”

Section: Synthesis Of Borosilicate Phenolic Resinmentioning

confidence: 99%

Enhanced thermal and anti‐ablation properties of high‐temperature resistant reactive POSS modified boron phenolic resin

Niu

Xin

et al. 2021

J of Applied Polymer Sci

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Effect of incompletely condensed tri-silanol-phenyl-POSS on the thermal stability of silicone rubber

Cited by 25 publications

References 40 publications

Structural silicone sealants after exposure to laboratory test for durability assessment

Structural silicone sealants after exposure to laboratory test for durability assessment

α-Fe2O3 Nanoparticles Aided-Dual Conversion for Self-Powered Bio-Based Photodetector

Enhanced thermal and anti‐ablation properties of high‐temperature resistant reactive POSS modified boron phenolic resin

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