Multi-walled carbon nanotubes as secondary fibre fillers for property improvement of short carbon fibre-reinforced silicone rubber

Abstract

To improve the properties of room temperature vulcanized (RTV) silicone rubber, functional multi-walled carbon nanotubes (MWCNTs) and short carbon fibres were added into the RTV silicone rubber as hybrid fibre fillers. The functionalized MWCNTs were characterized by transmission electron microscopy and X-ray photoelectron spectroscopy. The mechanical, thermal and ablative properties of the fabricated RTV silicone rubber composites were investigated. Their properties were enhanced by adding the functionalized MWCNTs with appropriate contents. The tensile strength and tear strength of the composites are improved from 4.0 MPa and 20.3 kN m −1 to 4.3 MPa and 21.3 kN m −1 , respectively, when the MWCNT content increased from 0 to 0.5 phr. In addition, the decomposition temperatures at the onset point and 50% mass loss increased from 493.4 and 564.4 • C to 498.8 and 612.4 • C, respectively. The mass and line ablation rates also decreased from 0.062 g s −1 and 0.148 mm s −1 to 0.059 g s −1 and 0.145 mm s −1 , respectively.

Fabrication of core–shell liquid metal@silica nanoparticles for enhanced mechanical, dielectric and thermal properties of silicone rubber

“…Unfortunately, the relatively poor mechanical properties of silicon rubber without reinforcing nanofillers limit its application. In order to diversify the application potential of silicone rubber, the traditional solution is to introduce a variety of inorganic nanofillers, such as SiO 2 , 11 BN, 12 carbon nanotubes 13 or graphene, 14 into the matrix to improve the comprehensive performance of silicone rubber composites. Although the expected properties of the composites can be achieved by adding specific nanofillers, the weak interfacial forces between the rubber matrix and nanofillers still result in poor mechanical properties of the silicone rubber.…”

“…With the unique molecular structure and comprehensive performance, silicone rubber is widely used in the aerospace, [1][2][3] automotive, 1,4 electrical and electronic, [5][6][7] and medical fields. [8][9][10] The development of stretchable, mechanically robust, dielectric, multifunctional silicone rubbers with high thermal stability is crucial for soft electronics applications.…”

Shear Ablation Behavior and Mechanism of Liquid Silicone Rubber Composites at Different Ablation Angles and Distances

“…Furthermore, the Si–O bond allows it to be transformed into SiO 2 and form a hard insulating ceramic silicon–carbon layer during the ablation process . Room-temperature vulcanized (RTV) liquid silicone rubber (RTV-LSR) not only possesses the characteristics of silicone rubber but also can be directly processed in the liquid form and vulcanized at room temperature . Additionally, its molecular structure is highly designable, which provides convenience for its targeted modification .…”

Design of Multi-Line Elastic Belt Conveying Control System for Knitting Machine Based on I2C Protocol

“…The addition of elastic belt as an important way to maintain the shape and tightness of the knitted fabric can maintain the fabric's flexibility and ductility [1]. The use of elastic belt in fabrics can be traced back to the end of the 20th century.…”