Synthesis and Characterization of High Heat Resistant Hydroxyl Silicone Oil with Boron and Sulfoxide in Backbone

Ren, Fengmei; Xu, Qiang; Zhou, Zhengfa; Xu, Weibing; Ma, Haihong

doi:10.1007/s12633-019-00313-3

Cited by 4 publications

(2 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The peaks at 1260 and 780 cm −1 were due to δ Si‐CH3 and ρ Si‐CH3 respectively 30 . The absorption peaks at 1020 cm −1 and the shoulder at 1070 cm −1 were assigned to the vibrations of SiOSi 31 . The absorption bands at 2905–2960 cm −1 were due to the asymmetric stretching vibrations of the CH bonds in the methyl groups 29 .…”

Section: Resultsmentioning

confidence: 99%

Study on the high‐temperature damping properties of silicone rubber modified by boron‐terminated polysiloxane

Cui

Qian

et al. 2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

Rubber damping materials have important applications in modern industrial systems. However, their damping temperature range is low, which is not suitable for the damping demand under high temperature conditions. At present, there is very little research on the damping performance of rubber under high temperature conditions. Silicone rubber has excellent high temperature resistance but poor damping in its application temperature range. In this study, a boron-terminated polysiloxane (PBS) was prepared by modifying hydroxyterminated polydimethylsiloxane (PDMS-OH) with boric acid (BA). The molecular structure of PBS was confirmed by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR) and gel permeation chromatography (GPC) analysis. Rheology measurements revealed that PBS was a "shear hardening" material. Then, the silicone rubber was modified with PBS.With the introduction of boron atoms, boron and oxygen dative bonds with dynamic properties could be formed inside the silicone rubber, which played an energy dissipation role in the process of association/dissociation. Dynamic mechanical analysis (DMA) showed that the loss factor (tan δ) of modified silicone rubber was greater than 0.3 in the temperature range of 81.5 C-250 C, which was higher than the loss temperature range of conventional damping rubber. The cyclic stress-strain test also showed that the modified silicone rubber still had high dissipation coefficient (DE) at high temperature. Therefore, the PBS-modified silicone rubber prepared by this method achieved excellent damping performance under high temperature conditions.

show abstract

Section: Resultsmentioning

confidence: 99%

Study on the high‐temperature damping properties of silicone rubber modified by boron‐terminated polysiloxane

Cui

Qian

et al. 2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Owing to its plentiful merits, such as electric insulation, anti-high and -low temperatures, chemical inertia, physiological inertia, low surface tension, and water-repellent and moisture-resistant performance, silicone oil and its derivative products have been extensively applied to electricity, light industry, construction, and other fields ( Chen et al, 2009 ; Mei et al, 2014 ; Aziz et al, 2018 ; Zhang et al, 2020 ). Currently, infrared (IR) spectroscopy, nuclear magnetic resonance (NMR), gel permeation chromatography (GPC), supercritical fluid chromatography (SFC), and matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF) are the powerful techniques to characterize silicone oil ( Semchyschyn et al, 2000 ; Chmelik et al, 2001 ; Ren et al, 2019 ; Liu et al, 2021 ). GPC is a popular technique to determine the average molecular weight of polymers, but it is not suitable for the analysis of oligomeric hydroxyl silicone oils ( Montaudo et al, 1995 ).…”

Section: Introductionmentioning

confidence: 99%

Characterizing Oligomeric Hydroxyl Silicon Oils by MALDI-TOF MS With the Pyridine-Modified Matrix

Zhang

Wang

et al. 2021

Front. Chem.

View full text Add to dashboard Cite

Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF) is a powerful technique for analysis of various polymers, but it is still very difficult to characterize silicone oil due to its poor ionization efficiency. In this work, oligomeric hydroxyl silicone oils were successfully characterized by MALDI-TOF, by using pyridine-modified 2,5-dihydroxylbenzoic acid (DHB) as the matrix. Furthermore, the mixed crystal of DHB and hydroxyl silicone oil was analyzed by scanning electron microscopy (SEM) and energy disperse spectroscopy (EDS), and the analytical results verified that modification with pyridine could remarkably improve the solubility of hydroxyl silicone oil in DHB, leading to the enhancement of its ionization efficiency in MALDI. The analysis of the MS spectra of a series of hydroxyl silicone oils indicated that they tended to be ionized by the attachment with Na+, and the average molecular weight and the degree of polymerization were measured for several oligomeric hydroxyl silicon oils.

show abstract

Preparation, properties and formation mechanism of hydroxyl-silicone oil coating on the surface of kaolin/ TiO2 composites

Zhang

Cheng

et al. 2023

Colloids and Surfaces A: Physicochemical and Engineering Aspect

View full text Add to dashboard Cite

Synthesis and Characterization of High Heat Resistant Hydroxyl Silicone Oil with Boron and Sulfoxide in Backbone

Cited by 4 publications

References 29 publications

Study on the high‐temperature damping properties of silicone rubber modified by boron‐terminated polysiloxane

Study on the high‐temperature damping properties of silicone rubber modified by boron‐terminated polysiloxane

Characterizing Oligomeric Hydroxyl Silicon Oils by MALDI-TOF MS With the Pyridine-Modified Matrix

Preparation, properties and formation mechanism of hydroxyl-silicone oil coating on the surface of kaolin/ TiO2 composites

Contact Info

Product

Resources

About