The production of hollow glass microspheres is part of an ongoing research and development program started in 1974. And aimed at developing a method for mass producing glass fuel containers for use in inertial confinement fusion (ICF) experiments. Several previous reports have described the development of the liquiddroplet technique for the production of hollow glass microspheres.

In this paper, ive review previous data along with tie results from our more recent studies to present a detailed picture of the preparation method and properties of the hollow glass microspheres. The production of the high-quality hollow glass microspheres needed for laser fusion targets requires us to optimize a number of processing parameters.

In the past, we used a largely empirical approach to determine the proper operating conditions. Although this approach was successful, it was also time consuming and manpower intensive. To help guide and interpret our present experimental work, we have developed a simple, onedimensional (1-D) model to simulate the sphere formation process.

The model has been used to quantify the effects of several key process variables such as the column temperature profile, purge-^as composition, droplet size and composition, and glass film properties.

This article comes from osti edit released

Imagine lighter-weight vehicles that can travel farther on less fuel. More efficient ways to drill for oil and insulate deepsea pipelines. Paint that helps keep homes cooler on hot, sunny days. In all these ways and more, hollow glass microspheres are helping a wide range of industrial sectors solve design challenges and reach new levels of performance and productivity.

Hollow glass microspheres are high-strength, low-density hollow glass microspheres made from soda-lime borosilicate glass. They are nonporous, chemically stable and provide excellent water and oil resistance.

Strong enough to survive processing, they can be incorporated into a wide range of polymers for density reduction. And the benefits of hollow glass microspheres go far beyond lightweighting: the inherent properties of these microspheres provide a number of unique performance and processing advantages.

Hollow glass microspheres products offer formulators flexibility in polymer composites. The addition of hollow glass microspheres to fiberglass reinforced plastics (FRP), epoxy, compounds, and urethane castings can provide weight reduction cost savings and improved impact resistance. Insulating features of hollow glass microspheres also work to the chemists’ advantage in thermal shock and heat transfer areas. Sphere One’s hollow glass microspheres are your best choice when you need lightweight filler.

A range of products with densities from 0.14 to 0.80 g/cm3 provides choices to best fit mixing and target weight requirements.

When used in polymer concrete, hollow glass microspheres provide a cost effective alternative without degrading physical properties.

Hollow glass microspheres are used to enhance performance and reduce viscosity in paints and coatings and as lightweight additives in plastic parts. They are chemically inert, non-porous, and have very low oil absorption.

Applications:

Adhesives, Auto Body Filler, Caulk, Coatings, Cultured Marble, Epoxy, Putty, Sealants.

Syntactic foams (SF) with robust impermeable hollow glass microspheres as density adjuster have drawn much attention because of their easy-tailored low density, high mechanical strength and excellent performance especially when used in high pressure aqueous environment.

In this work, specially fabricated hollow glass microspheres with high strength to weight ratio were employed for the controlled fabrication of high strength lightweight syntactic foams. Special attention has been paid on the effects of surface physicochemical status modification of the HSMs on the mechanical strength and mechanical performance evolution in various external environments. It is found that the surface physicochemical status modification of the hollow glass microspheres contributes more on the enhancement of the fracture toughness compared with that of the compressive strength.

Moreover, compared with those of the pristine SF, the mechanical strength of the SF samples after different environmental exposure display a more remarkable improvement due to the surface physicochemical status modification of the HSMs, indicating an enhanced environmental stability. This work provides an additional insight to the mechanical strength and aging resistance control of SF, which holds the potential to be extended to the property improvement of similar composites with various types of silicate or glass fillers.

This article comes from sciencedirect edit released

Hollow Glass Microspheres (HGMS) are near perfect spherical shapes of thin walled glass bubbles that are approximately 50 microns in size. The glass type is amorphous and can come low purity or high purity (Trelleborg) grades.

The key properties of low density HGMS are their light weight and strength. Incorporating them into buoyancy products allows Remotely Operated Vehicle (ROV), or Autonomous Underwater Vehicle (AUV) manufacturers to provide buoyancy to vehicles without the use of cumbersome pressure vessels (buoyant structures) because the material itself is buoyant (buoyant material). Some of other applications are as an alternative to conventional fillers and additives such as silica, calcium carbonate, talc, and clay in low dielectric or thermally insulating applications.

The glass bubbles can be incorporated into a wide range of polymer and resin systems and can be customized via surface treatments, material chemistry selection, density specifications, or particle size distribution, thereby being tailored to meet demanding strength, weight and electrical specifications for customers in a variety of markets.

This article comes from trelleborg edit released

With a series of alternative materials and rapid development, especially in the application of high performance glass beads to reduce thermal conductivity and reduce deep-sea oil and gas recovery feasible.With the deep undersea oil pipeline requires the development of deeper and more to geographic location requirements increase. When depth and stressful environment, usually filled with glass beads apply foam insulation, which makes deep-sea pipeline to extend long 50km or farther underwater.

Currently the use of hollow glass microspheres filled polymer synthesis deep strong buoyancy material has been applied in foreign countries.According to reports, the current foreign developed high compressive strength, low density buoyancy material is an epoxy binder, filled with hollow glass beads and a large number of additives, such as lightweight composite buoyant material used in deep-sea submarine, in the deep seaIt can withstand high pressure, and in the basic conditions for a long time does not absorb moisture.Although China has been carried out in this field for many years of research, but in terms of diving with buoyant material properties are still lagging behind the international advanced level.

Sinosteel Maanshan Institute of Mining Research Co.,Ltd established in 1963, it belongs to one of the global top 500–Sinosteel Group.So far, we have outstandingly completed a series of major national scientific and technological tasks and 118 Science and technology support projects.Meanwhile,we complete 2 National important technological equipment localization projects, 22 state-level new products & National torch plan projects and more than 12000 projects authorized by key unit in Province and mineral enterprises. Nowadays, we have been awarded more than 500 National & provincial Prizes for Progress in Science and Technology and 102 patents.

 

 

There filling performance energy efficient, low low oil, density, added 5% (wt) will be able to make the finished product increased by 25% to 35%, so as not to increase or even reduce the cost per unit volume of the coating. Hollow glass beads particles confined hollow spheres added to the coating formation of many independent microscopic cavity insulation, thus greatly improving the coating on the thermal and sound insulation, play a very good thermal insulation and noise reduction effect. The coating has a more waterproof, anti-fouling, corrosion resistance. When the surface of the hollow glass microspheres are chemically inert chemical resistance, as the film tightly packed particles of glass beads, the formation of low porosity, the coating formed on the surface of the moisture and corrosion caused by the blocking effect of ions protective film, played well protective effect.

Hollow glass beads spherical structure makes the impact force and stress have a good dispersion, added to the paint can well improve the resistance to external impact properties of the film, and the coating can be reduced due to thermal expansion and contraction the stress cracking.

Filling the hollow glass microspheres can effectively reduce other expensive fillers and pigments dosage (compare with titanium dioxide, but its volume costs beads 1/5) effectively enhance the adhesion of the coating. Low oil absorption properties of glass beads so that more resin can participate in film formation, so that the adhesion of the coating increased 3 to 4 times.

 

Mar 19, 2020 (The Expresswire) — Global “Hollow Glass Microsphere Market” forecast report provides an in-depth analysis of all market dynamics including drivers and restraints, and trends and opportunities. The report covers the competitive scenario of the major market players here which specifies their sales revenue, customer demands, company profile, import/export scenario, business strategies that will help the developing market segments in creating major business conclusions. The report further highlights the primary challenges and latest growth approaches contained by key players that establish the dynamic competitive spectrum of this business domain.

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The report also focuses on global major leading industry players of the Global Hollow Glass Microsphere market providing information such as company profiles, product picture and specification, capacity, production, price, cost, revenue and contact information. Upstream raw materials and equipment and downstream demand analysis is also carried out.

On the basis on the end users/applications, this report focuses on the status and outlook for major applications/end users, sales volume, market share and growth rate of Hollow Glass Microsphere Market applications includes:

 

Aerospace
Automobile
Medical Care

Hollow Glass Microsphere Market Production by Regions:

United States
Europe
China
Japan
South Korea
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The research provides answers to the following key questions:

What is the global (North America, South America, Europe, Africa, Middle East, Asia, China, Japan) production, production value, consumption, consumption value, import and export of Hollow Glass Microsphere?
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What are the types and applications of Hollow Glass Microsphere? What is the Hollow Glass Microsphere market share of each type and application?
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Economic impact on Hollow Glass Microsphere industry and development trend of Hollow Glass Microsphere industry.
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from:marketwatch

Sinosteel Maanshan New Material Technology Co., Ltd is a comprehensive high-tech enterprise, which specialized in research、development、production and sales of High-performance Hollow Glass Microspheres, and it belongs to Sinosteel Maanshan Institute of Mining Research Co.,Ltd.

Improving flow properties.

Hollow glass microsphere is a tiny sphere with high ball-type rate. Its ball-bearing effect can improve its mobility and reduce the viscosity and internal stress of resin mixture. Therefore, during processing, less heat is produced in composite materials so as to prevent inadequate lubrication and partial thermal decomposition. It is more likely to extrude when molding, which can not only reduce defects in products, but also improve the production efficiency by 15% -20%.

More substitute ability for resin.

Hollow glass microspheres occupy less surface area, low oil-absorption rate, and evenly disperse in mixture. Its easy compression and integration permit high filler loadings. It significantly reduces the consumption of resins, increases the amount of filler, and effectively reduces VOC indicators, and costs as well.

Low shrinkage and warpage.

Hollow glass microspheres have the feature of isotropism and high-filling, hence the dimensional stability of the product will be very high and it will reduce the shrinkage and warpage. With an appropriate filling ratio, the toughness of the products, impact-resistance and surface hardness can be significantly improved.

More economical by volume.

The density of high-performance hollow glass microspheres is only a fraction of that of the resin. A small amount of hollow glass microspheres will be able to replace heavier materials. When considering the cost per unit volume, rather than cost per unit weight, high-performance hollow glass microspheres can significantly reduce costs.

Adjusting the density of products .

The density of hollow glass microspheres is usually 0.20 ~ 0.60g/cm3, and the density of mineral filler is generally around 2.7 ~ 4.4 g/cm3 (The data adopted is the true particle density). In order to obtain the equal size, 14 kilograms or more of talc must be used to obtain the same effect of 1 kg of hollow glass microsphere. Hence the desired ideal density can be obtained by adding appropriate proportions of hollow glass microspheres.

Hollow glass microspheres are used in many elastomeric applications—from shoe soles and tires to hoses and wire and cable compounds, from thermoplastic elastomers to liquid silicone rubber sealants and void fillers.

Often the main benefit is weight reduction, especially important for transportation applications. Insulation, stiffening, and cycle time reductions are additional attributes afforded by hollow glass microspheres for transportation and other applications.

In general, they are used for many of the same reasons as discussed in the Thermoplastics chapter, but physical property changes are somewhat different.

This article comes from sciencedirect edit released