Surface modification of hollow glass microsphere with different coupling agents for potential applications in phenolic syntactic foams

Huang, Chi; Zhang, Huang; Lv, Xuesong; Zhang, Guangwu; Wang, Qiong; Wang, Bo

doi:10.1002/app.44415

Cited by 37 publications

(31 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to their outstanding integrated performances, including high thermal and mechanical properties and good radiation and corrosion resistance, high‐performance thermosetting resins (HPTRs) have important applications in many cutting‐edge industrial fields such as aerospace, electronic information, electrical insulation, and new energy . However, in recent years, increasing requirements for good flame retardancy and suppression of toxic volatiles have been put on HPTRs …”

Section: Introductionmentioning

confidence: 99%

Flame‐retardant cyanate ester resin with suppressed toxic volatiles based on environmentally friendly halloysite nanotube/graphene oxide hybrid

Zhang¹,

Xu²,

Yuan³

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

Development of high‐performance thermosetting resins by adding environmentally friendly flame retardant to heat‐resistant resins without deteriorating their outstanding thermal stability is an important research direction. Here, a unique hybrid (GHNT) consisting of graphene oxide (GO) and halloysite nanotubes (HNT) was synthesized, and then a series of composites based on cyanate ester (CE) resin were fabricated. The effects of GHNT on the heat resistance, flame retardancy, and smoke suppression of GHNT/CE composites were intensively investigated. The GHNT/CE composite with 5.0 wt % GHNT not only has about 15.1 °C higher initial degradation temperature, but also shows 54.6% or 37.9% lower peak heat release rate or maximum smoke density than CE resin. These results clearly demonstrate that GHNT is not the simple combination of GO and HNT; instead, it obviously shows positive synergistic effects in simultaneously improving the flame retardancy and thermal resistance of CE resin. The improved flame retardancy could be attributed to condensed‐phase mechanisms, including increasing char yield, building a dense char layer, and free radical scavenging. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46587.

show abstract

Section: Introductionmentioning

confidence: 99%

Flame‐retardant cyanate ester resin with suppressed toxic volatiles based on environmentally friendly halloysite nanotube/graphene oxide hybrid

Zhang¹,

Xu²,

Yuan³

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…The ammonium bicarbonate solid is used as foaming agent. 9 In this experiment, the total quantity values of epoxy resin, glass microsphere and curing agent are 60.0 g, 5.0 g and 10.0 g, respectively. The epoxy resin and curing agent are mixed by magnetic stirrer (DF 101 S, 1000 r/min), and the samples of epoxy-glass microsphere composite are fabricated according to the following steps: (i) Pre-treating: The surface of the glass microsphere powder is pre-treated with the KH-550 coupling agent, the weight of which is 5 wt% of the glass microsphere used in this step, i.e.…”

Section: Methodsmentioning

confidence: 92%

Fabrication and mechanical properties of a novel epoxy-hollow glass microsphere composite

Liu

Wang²,

Pei

et al. 2017

Journal of Composite Materials

View full text Add to dashboard Cite

According to the demand of deep-sea buoyancy material with high compression strength and low density, a novel epoxy-hollow glass microsphere composite was manufactured and characterized. Firstly, the epoxy resin is modified by chemical modification methods using poly(methyltriethoxysilane) to improve the toughness of epoxy resin. Then, the ammonium bicarbonate is used as the foaming agent to add into the epoxy resin to produce the bubbles. After mixing with a small amount of hollow glass microsphere, the modified epoxy-hollow glass microsphere composite with foams is fabricated. IR spectrum indicates that the silicone has been successfully grafted on the epoxy resin chain, which benefits the toughness of the resin. It can be found that a lot of smaller bubbles exist on the surface of hollow glass microsphere by SEM, which further reduces the density of the modified epoxy-hollow glass microsphere composite. The compression strength has been significantly improved since the bubbles on the surface of glass beads play the role of a buffer balloon and there are few air bubbles in the resin matrix. The coefficient of water absorption for the modified epoxy-hollow glass microsphere composite also increased. The flexural strength of the modified epoxy-hollow glass microsphere composite was slightly reduced at the same time. The results here confirm a promising method for buoyancy materials to promote the compression strength and reduce the density.

show abstract

“…Additionally, air trapped by this viscous mixture cannot be eliminated in the degassing process, whereas after the resin curing, the air becomes matrix pores (sometimes up to 11 vol.%). Some previous studies 4,22–25 have shown that matrix pores are the defects, which affect the properties of composites, especially its compressive strength.…”

Section: Introductionmentioning

confidence: 99%

Compressive properties of co-continuous hollow glass microsphere/epoxy resin syntactic foams prepared using resin transfer molding

Ding

Liu

et al. 2019

Journal of Reinforced Plastics and Composites

View full text Add to dashboard Cite

In this article, the co-continuous hollow glass microspheres (HGMs)/epoxy resin syntactic foams were prepared by filling the HGM preforms with epoxy resin. The effects of HGM wall thickness and solid loading on the density, open porosity, and morphology of HGM preform and HGM/epoxy resin syntactic foams were studied in detail. The results show that the HGM wall thickness had no effect on the open porosity of HGM preforms. However, the density of preforms increased with the true density of HGMs. The density of HGM/epoxy resin syntactic foams decreased with the contents of HGMs, and the measured density was essentially equal to the theoretical density. The compressive strength decreased with the contents of HGM, regardless of the HGMs wall thickness. However, the variation in compressive modulus was related to the HGMs’ wall thickness. As the HGM solid loading increased, the compressive modulus of composites, prepared using thin-walled HGMs, decreased, while the composites prepared using thick-walled HGMs showed the opposite trend. The co-continuous HGM/epoxy resin syntactic foams possessed low density (0.567–1.002 g/cm3), and excellent compressive strengths (30.32–131.60 MPa). These properties were due to the elimination of matrix pores, and are a type of promising material in deep sea exploration area.

show abstract

Surface modification of hollow glass microsphere with different coupling agents for potential applications in phenolic syntactic foams

Cited by 37 publications

References 40 publications

Flame‐retardant cyanate ester resin with suppressed toxic volatiles based on environmentally friendly halloysite nanotube/graphene oxide hybrid

Flame‐retardant cyanate ester resin with suppressed toxic volatiles based on environmentally friendly halloysite nanotube/graphene oxide hybrid

Fabrication and mechanical properties of a novel epoxy-hollow glass microsphere composite

Compressive properties of co-continuous hollow glass microsphere/epoxy resin syntactic foams prepared using resin transfer molding

Contact Info

Product

Resources

About