Archive for the ‘Hollow Glass Microspheres’ Category

Hollow Glass Microspheres is a Free Flowing White Powder and showed to be hollow sealed sphere under microscope. Application Hollow glass microspheres have a significant effect to reduce weight and noise insulation, make the products have good anti-cracking performance and re-processing performance, is widely used in glass, steel, artificial marble, artificial agate and other composite materials, and the oil industry, aerospace , new high-speed train, car ferry, insulation coatings and other fields.

Low density drilling fluids made with hollow glass microspheres:
1) Adjustable density in a wide range
2) Incompressible and uniform in density
3) Good lubricity, Reduce drilling tool wear
4) No pollution for reservoir
5) Good stability at high temperature and pressure
6) No loss of MWD signal
7) Mud cake quality improved

Low density cement slurries made with hollow glass microspheres:
1) Density can be decreased to as low as 0.90g/cm³
2) Low porosity
3) High compressive strength
4) Good stability at high temperature and pressure
5) Low fluid loss rate
6) Adjustable thickening time

FROM:chnchemical

Hollow Glass Microspheres‘ applications are in the fields of Thermal insulation coating, putty, plastic casting polyester, FRP ,SMC, synthetic foam, adhesives, printed circuit board substrate, RTM, bowling, fan blades, & caulking materials, emulsion explosives, golf, sealant, pipeline insulation materials, artificial marble, PVC foam, low density oil drilling, light cement, and other deep-sea buoy etc.

FROM:chnchemical

Hollow Glass Microspheres Y Series are hollow glass spheres designed for use in drilling, completion, and workover fluids, as well as cement slurries in the oil and gas industry. With density of 0.20~0.60 g/cc and crush strength of 2,000 ~12,000 psi (pounds per square inch), Y Series Hollow Glass Microspheres are well-suited for use in wells from various depths.
1)Successfully and predictably reduces the control fluid density
2)Prevents or minimizes fluid loss/lost circulation and formation damage
3)Incompressible and more homogeneous control fluid properties compared with foamed and aerated systems
4)Eliminates the need for specialized equipment used in foamed and aerated systems
5)Potential for improved production efficiency, enhanced well integrity and increased well productivity

Application
Hollow Glass Microspheres’ applications are in the fields of Thermal insulation coating, putty, plastic casting polyester, FRP ,SMC, synthetic foam, adhesives, printed circuit board substrate, RTM, bowling, fan blades, & caulking materials, emulsion explosives, golf, sealant, pipeline insulation materials, artificial marble, PVC foam, low density oil drilling, light cement, and other deep-sea buoy etc.

 

Hollow glass microspheres ( also known as glass bubbles ) are hollow glass spheres made of chemically stable Soda-lime-borosilicate glass with thin walls(wall thickness 1~3.5μm). We have several grades available with true density ranging from 0.20g/cc~0.60g/cc, Sinosteel hollow glass microspheres can be used as lightweight functional additives for Composites,Thermal insulation paints/coatings, Sealant/adhesives, Low density cementing slurries and many more applications with very competitive quality and price.

Sinosteel Maanshan New Material Technology Co., Ltd., a wholly owned subsidiary of Sinosteel Maanshan Institute of Mining Research Co. Ltd., is a comprehensive high-tech company that specializes in research&development 、production and sales of high-performance Hollow Glass Microspheres.

Established in 1963, Sinosteel Maanshan Institute of Mining Research Co., Ltd (Hereafter, The Institute) used to be a key scientific research institute under the former Ministry of Metallurgical Industry. The Institute has been authorized to grant master’s degree (first-level discipline) by the Academic Degree Committee of the State Council since early times. The Institute, now as a national innovation-oriented company and a key high-tech company under the National Torch Program, is attached to Sinosteel Group Corporation Limited. The Institute has undertaken and completed a number of major national science and technology projects successfully, and won more than 680 awards of scientific and technological achievements at national or provincial levels by far.

 

Colored hollow glass microspheres add color to a product without the use of other colorants (pigments or dyes) and also offer functional benefits such as lower viscosity and improved flow. Solid polyethylene hollow glass microspheres can be manufactured in any color, including flesh tone, clear, grey, fluorescent, glow-in-the-dark and multicolor, which provides a multitude of options for color effects in a wide variety of products.

Hollow glass microspheres can be used to add saturated color, a hint of color or a sparkle to a formula. Colored hollow glass microspheres enable formulators to achieve saturated colors or desired color effects with much larger particles, which are not respirable and come in a free- flowing dry powder, ensuring a simpler formulation process. In addition, since larger hollow glass microspheres tend to not agglomerate as easily as submicron pigments, the challenge of pressed-powder agglomeration is greatly reduced.

Since creating an opaque hollow glass microsphere is almost impossible, colored polymer hollow glass microspheres are often preferred for applications requiring high color, opacity and superior coverage. However, hollow glass microspheres are preferable if maximum clarity of the sphere is desired, for example, for a soft-focus effect.

In science and technology applications color becomes one of the most important properties of hollow glass microspheres, especially when used as tracer particles that need to have high contrast and visibility in the system, such as in-vivo studies, process diagnostics and troubleshooting, contamination studies, flow visualization, and instrument calibration, to name a few applications.

This article comes from microspheres edit released

Polydimethylsiloxane (PDMS) is the most widely used silicon-based polymer due to its versatility and the range of attractive properties.

Fabrication of PDMS involves liquid phase cross-linking to obtain hydrophobic and mechanically flexible material in the final solid form. This gives opportunity to add various fillers to affect the properties of resulting material. In the present work, we describe simple and reliable method of making a PDMS-based composite material with significantly improved thermal insulation properties by adding hollow glass microspheres to the mixture of liquid base and cross-linker (10:1 ratio) followed by degassing and heat-assisted crosslinking. We obtained 31% reduction of thermal conductivity for samples with hollow glass microspheres content of 20% by mass.

At the same time, sound insulation capacity slightly decreased as a result of lower density of PDMS-hollow glass microspheres composite in comparison to pure PDMS. The wettability of the samples had no dependence on hollow glass microspheres content.

This article comes from chemrxiv edit released

We utilized tridecafluorooctyltriethoxysilane (F8261) for the surface modification of hollow glass microspheres. We then measured the contact angles and the residing time of oil droplets on the hollow glass microspheres surface under different conditions and investigated the effects of the modifier concentration, reaction time and reaction temperature, and other factors on the outcomes of the modification reaction.

We also compared the effects of hollow glass microspheres on the expansion ratio and 25% drainage time of protein foam liquid before and after the modification treatment and investigated the effects of hollow glass microspheres surface oleophobic modification on the foaming capacity and stability of foam extinguishing agent.

The results showed that when the F8261 concentration was 1.0%, the temperature was 60°C, and the ultrasound treatment time was 2.0 h, the contact angle was up to 132.5°, the oleophobic property of hollow glass microspheres could be significantly enhanced, and the foaming capacity and the oil surface stability were significantly improved by the oleophobic modification.

This article comes from hindawi edit released

Hollow Glass Microspheres Market size was USD 1,938.3 million in 2019 and will grow at a CAGR of 4.4% from 2020 to 2026. Rising demand of energy efficient buildings and reducing greenhouse gas emission will positively impact on increase product demand over the forecast timeframe.

Hollow glass microspheres are also known as bubbles, microbubbles and micro-balloons. These are typically made of borosilicate-soda lime and offer various benefits such as low density, chemical resistance and high heat. Glass microspheres walls are quite rigid and have a thickness of over 10% of overall diameter of a sphere.

Based on application, the market is classified into paints & coatings, plastics, composites & rubber, transportation, insulation & buoyancy, healthcare, and others. The industry is likely to witness a high demand in Russia, China, Brazil, and India owing to the growing manufacturing sector and heavy infrastructure spending. Latin America is also forecast to achieve a high growth rate over the forecast period owing flourishing to oil & gas industry in the region, which offer lucrative growth opportunities to the major players of global hollow glass microspheres market.

Increasing demand for reduction of greenhouse gas emissions is the major factor responsible for rising adoption of hollow microsphere systems worldwide. Multiple countries have implemented a variety of policies for mitigating greenhouse gas (GHG) emissions. Various countries have enacted legislation by establishing greenhouse gas emissions reduction, which requires state agencies to report GHG emissions.

This article comes from gminsights edit released

The objective of this work is to improve the structural characteristics of hollow glass microsphere filled epoxy syntactic foam composites with little voids content and improved hollow glass microsphere dispersion in the composite.

A modified degassing technique has been introduced during resin casting process of the hollow glass microsphere filled syntactic foam composites. The effect of hollow glass microsphere content volume fractions (5–25%) on the degassing techniques was examined. The syntactic foam composites were characterized by analysing structural morphology using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy(TEM), and density measurements (theoretical and experimental).

Less than 5% void content has been achieved in this study. This resulted in improved tensile and dynamic mechanical properties (DMA).

This article comes from degruyter edit released

Reducing the weight of thermoplastics parts has been a high priority objective in various industries such as transportation, aerospace, hand-held electronics and sports and leisure. Hollow glass microspheres are currently used in a variety of lightweight automotive applications, including thermoplastics, sheet and bulk molding composites (SMC/BMC), underbody coatings (plastisols), structural foams and auto body fillers. Hollow glass microspheres are excellent strength/weight optimizers when they are used in filled polymer systems such as glass fiber, talc, and calcium carbonate filled thermoplastics. Reducing and replacing a certain percentage of these high density fillers with hollow glass microspheres results in weight reduction while significantly maintaining the original mechanical properties of the composite. Hollow glass microspheres impart several benefits to thermoplastics in addition to density reduction.

These include:

  • productivity Benefits through faster cooling rates from the melt
  • dimensional stability (sink and warpage elimination)
  • increased stiffness (modulus) and heat distortion resistance
  • reduced thermal conductivity and dielectric constant

All of these new functions and benefits can be achieved with class-a surface and with existing equipment enabling new design functions.

This article comes from sciencedirect edit releasde