Effect of hollow glass beads on density and mechanical properties of silicone rubber composites

Quan, Xudong; Han, Ruijie; Shao, Yuanrui; Niu, Kangmin

doi:10.1002/app.49865

Cited by 21 publications

(6 citation statements)

References 27 publications

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“…Thus, the interfacial compatibility between HGM and PIF was effectively improved to enhance the performance in PIF. 27,28 It is worth noting that the mechanical properties of the composite foams decrease with the further increase of M-HGM content. However, it is still higher than that of pure PIF and can resist the compression weight of 100 g without deformation.…”

Section: Mechanical Propertymentioning

confidence: 99%

Modified hollow glass microsphere isocyanate-based polyimide foam composite with improved mechanical and thermal insulation properties

Liu

Fu-xing

et al. 2022

High Performance Polymers

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In this work, hollow glass microspheres (HGM) were introduced into the polyimide matrix as an effective reinforcement filler to improve the mechanical and thermal insulation properties of the polyimide foams (PIF). The HGM was surface-modified with the silane coupling agent to enhance the interfacial compatibility with PIF. Experimental results revealed that the average cellular diameter of PIF decreased obviously with the addition of the modified HGM (M-HGM). The apparent density of foams also increased from 15.85 to 18.34 kg/m3 when the M-HGM combination was changed from 0 to 12 percent (wt.%). Compared with the pure PIF, the composite foams added 8 wt.% M-HGM showed high compression strength (65 kPa) and compression modulus (1147 kPa), resulting in a distinct enhancement in mechanical properties. Furthermore, the addition of M-HGM filler also improved the thermal insulation performance of PIF, which exhibited the minimum thermal conductivity of 29.48 mW·m−1·K−1 with 8 wt.% M-HGM. Thus, considering the improved mechanical and insulation properties of the prepared PIF, it could be a promising candidate for the high temperature-resistant thermal insulating applications.

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Section: Mechanical Propertymentioning

confidence: 99%

Modified hollow glass microsphere isocyanate-based polyimide foam composite with improved mechanical and thermal insulation properties

Liu

Fu-xing

et al. 2022

High Performance Polymers

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“…Graphene improved the physical and chemical bonding of the interface in the material and can thus improve the mechanical properties of the composites. Quan et al 15 modified hollow microspheres with a silane coupling agent, and the tensile strength of the composite was increased by 28.2% by enhancing interfacial chemical bonding. Wu et al 16 modified hollow microspheres with carbon nanotubes to improve the physical bonding at the interface.…”

Section: Introductionmentioning

confidence: 99%

Properties of epoxy resin matrix composites improved by silica sol‐activated hollow ceramic microspheres

Li,

Zhou,

Liu

et al. 2024

Polymer Composites

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Silica sol can activate the surface of hollow ceramic microspheres and improve the properties of composite materials by improving the interface between the microspheres and the epoxy resin. The group changes on the surface of microspheres were measured using infrared spectroscopy. The microspheres were observed with a scanning electron microscope. The density, water absorption, and mechanical properties of the materials were tested using scales and mechanical testing machines. The results showed that SiO2 and silane molecules were introduced on the surface of the microspheres after treatments. As the silica sol content increased, the slurry viscosity increased by 34.5%, the composite density increased by 5.8%, and the water absorption decreased by 35.8%. When the silica sol content was 25%, the flexural strength and compressive strength of the composites were 73.49 and 116.27 MPa, respectively, which were 37.8% and 23.6% higher than those of the untreated composites, and the mechanical properties became clearly improved. High mechanical properties enable the materials to be used in deeper ocean areas.Highlights Nanoparticles are introduced onto the surface of hollow microspheres. The activated microspheres can bind better to the silane coupling agent. Silane coupling agent assisted by silica sol improved interfacial bonding. Surface activation of microspheres improves the properties of composites.

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“…Several studies have also revealed that the combination of mica powder (MP) with other fillers improved the mechanical properties of composites under tensile and tearing modes, such as MP/wollastonite-filled styrene-butadiene rubber (SBR)/natural rubber (NR) [12] and MP/graphite flakes-filled ethylene propylene diene monomer (EPDM) [13]. In addition, due to the unique structure of hard glass on the outside and inert gas on the inside, hollow glass beads (HGB) are also widely used to fabricate polymer composites for mechanical reinforcement in different applications, such as nitrile and silicone rubbers [14,15].…”

Section: Introductionmentioning

confidence: 99%

Formulation and Performance of NBR/CR-Based High-Damping Rubber Composites for Soundproof Using Orthogonal Test

Zhu

Miao

et al. 2023

Polymers

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Multiple functional-material-filled nitrile butadiene rubber/chloroprene rubber (NBR/CR) acoustic composites were extensively studied and prepared. According to the orthogonal test table L25 (56), 25 groups of samples were prepared by using a low-temperature one-time rubber mixing process. With tensile strength, average transmission loss, and damping peak as indexes, the influence degree of different factors and levels on the properties of acoustic composites was quantitatively discussed and analyzed. The matrix weight analysis was employed to optimize the material formula of rubber composites, and the corresponding influence weight was given. Results showed that the acoustic composite with blending ratio of 70/30 for NBR/CR matrix had preferable mechanical and acoustic properties; adding mica powder (MP) and montmorillonite (MMT) in matrix contributed to improve all above three indexes owing to their specific lamellar structures; hollow glass beads (HGB) had a positive influence on improving acoustic property due to its hollow microcavities, however, it had a negative impact on damping property because of the smooth spherical surfaces. Accordingly, the optimal formulation was found to be NBR/CR blending ratio of 70/30, MP of 10 phr (per hundred rubber), HGB of 4 phr, and MMT of 10 phr.

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Effect of hollow glass beads on density and mechanical properties of silicone rubber composites

Cited by 21 publications

References 27 publications

Modified hollow glass microsphere isocyanate-based polyimide foam composite with improved mechanical and thermal insulation properties

Modified hollow glass microsphere isocyanate-based polyimide foam composite with improved mechanical and thermal insulation properties

Properties of epoxy resin matrix composites improved by silica sol‐activated hollow ceramic microspheres

Formulation and Performance of NBR/CR-Based High-Damping Rubber Composites for Soundproof Using Orthogonal Test

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