High-performance glass bubble & hollow glass microsphere T32 is a kind of ultra-lightweight inorganic non-metallic material with hollow structure, and it is a versatile and high-performance new lightweight material developed in recent years. It will be the new composite materials at twenty-first century. Its true density is 0.15-0.60g/cm3 with 2-120m in diameter. It owns features with light weight, large bulky, low thermal conductivity, high compressive strength, smoothly mobility etc.
Archive for the ‘Hollow Glass Microspheres’ Category
The range of applications in which coated microspheres and microparticles can be used to enhance current composites, or provide new solutions, is extremely diverse and the size, density, surface chemistry and functionality required by end users tend to be application specific. There is significant scope, therefore, for the development of a wide range of new materials to meet these diverse market opportunities.
Glass Microspheres are also used in composites to fill polymer resins for specific characteristics such as weight, sandability and sealing surfaces. When making large forms such as boat hulls for example, shapers seal the eps foam blanks with epoxy and lightweight microballoons to create an impermeable and easily sanded surface upon which fiberglass laminates are applied.
High-performance glass bubble & hollow glass microsphere T25 is a kind of ultra-lightweight inorganic non-metallic material with hollow structure, and it is a versatile and high-performance new lightweight material developed in recent years. It will be the new composite materials at twenty-first century. Its true density is 0.15-0.60g/cm3 with 2-120m in diameter. It owns features with light weight, large bulky, low thermal conductivity, high compressive strength, smoothly mobility etc.
Hollow glass microsphere is a kind of ultra-lightweight inorganic non-metallic material with hollow structure, and it is a versatile and high-performance new lightweight material developed in recent years. It will be the new composite materials at twenty-first century.
Hollow glass microspheres are widely used in composite materials such as FRP, man made marble and man made agate. They can decrease the weight of the composite materials and the composite materials have excellent performance of sound insulation and heat preservation, and they can improve the mechanical performance of the composite materials such as strengthened rigidity, enhanced anti-impact property, excellent anti-breaking property and re-processing function. Hollow glass microspheres are applied in a wide range of fields such as aviation, space flight, new bullet train, luxurious yacht, adiabatic dope, bowing balls, in which they play a distinctive role. Hollow glass microspheres are the excellent sensitized of emulsion explosive. They can improve the detonation property of emulsion explosive and prolong the shelf period of emulsion explosive. When used in the resin putty, hollow glass microspheres can increase the volume of resin putty, improve its polishing function. Packing: net 10kgs in Plastic film lined plastic weaving bags or strong cartons.
Hollow glass microsphere have been used for almost 30 years in many fields. They have the advantage of being light and cheap. They can be used in a variety of products, including sports equipment, insulation, automobile bodies, marine craft bodies, paints, and fire and heat protection devices.
The sample-list below shows the types of products that would be enhanced with Hollow glass microsphere.
PLASTICS: BMC, SMC, Injection Molding, Extruding, PVC flooring, Film, Nylon, High Density Polyethylene, Low Density Polyethylene, Polypropylene
CERAMICS: Refractory, Tile, Firebricks, Aluminum Cement, Insulating Materials, Coatings
ROCK OIL: Oil well construction, Heat preservation of oil pies, Materials used again erosion
CHEMISTRY: Paints, Fillers, Dope
RUBBER: Tyre
SPORTS: Surf boards, bowling balls, Flotation Devices, Golf equipment
MILITARY: Explosives, Screen shielding, Soundproof
SPACE: Aerospace coatings, Aerospace composites
SAILING: Ship bodies, Floating materials, Navigation marks
AUTOMOTIVE: Composites, Undercoating, Engine parts, Brake pads, Trim molding, Body fillers, Plastics, Sound proofing materials
CONSTRUCTION: Specialty cements, Mortars, Grouts, Stucco, Roofing materials, Acoustical panels.
Nickel Coating Technology – Nickel is a metal which lends itself to the electroless plating methods employed by MTL for particle coating. It has the potential to be used in a number of application areas, not least as a cheaper alternative to conductive silver.
However, in this particular application, nickel demonstrates gradual surface ‘passivation’ and the level of conductivity decays over a relatively short time. This may be an issue which could be resolved through further development work.
Nickel coated hollow glass microspheres also have ferromagnetic properties, which MTL has investigated with respect to their use in low density materials for radar absorption. Unfortunately, the frequency bands of interest in ‘stealth’ applications are not strongly absorbed by the nickel composites prepared using MTL materials. This application may be better served by the iron coating technology developed by MTL .
There could be potential in the use of light weight cores coated with relatively thick nickel layers e.g. up to 10 microns. These materials could be used in inductive heating applications where the relatively low thermal mass of the coated low density core would be of advantage in rapid temperature cycling. Opportunities still exist in this area and MTL have established methods for the preparation of coated particles of the necessary specification.
From:microspheretechnology
These hollow glass microspheres offer a variety of advantages over conventional irregularly-shaped mineral fillers or glass fiber.
Can improve fuel economy.
From:3M
Thermal conductivity measurements were performed to determine the characteristics of hollow glass microspheres as an insulating material and as an opacifying agent for other insulations. The experiments were carried out with a radial flow heat transfer apparatus especially designed to suppress extraneous heat transfers, both internal and external to the heated section, and to provide uniform temperatures on the bounding surfaces. Three types of microsphere insulations were investigated, differing in bulk density and in the presence or absence of an aluminizing coating. The thermal conductivity of the microsphere insulations was found to be about one and a half times that of stagnant air over a wide temperature range. Additional experiments, involving the use of an opacifier (powdered silicon), demonstrated that radiative transfer has a minor effect on the thermal conductivity of microsphere insulations. This finding was corroborated by the fact that the high-temperature conductivity of the aluminized microspheres was not appreciably different from that of the uncoated microspheres. Another set of experiments was performed in which microsphere insulation was added to opacify silica aerogel, a fine powder insulation that is markedly affected by radiative transfer. The presence of the microspheres brought about reductions in conductivity of almost a factor of two at an optimum mixture ratio of the constituents. Furthermore, it was found that the conductivity of such a mixture was lower than that of either constituent, thereby illustrating their synergistic interaction.
Copyright © 1976 by ASME
Hollow glass microspheres can be used as a continuous medium in low-density cement slurries. With addition of hollow glass microspheres, The slurry is incompressible and all wells are uniform in density. Used in drilling fluid, Sludge cakes formed have good lubrication, reducing the risk of sticking. Hollow glass microspheres have an irreplaceable advantage for it cannot affect the system signal. Hollow glass microspheres have a good rolling performance, and can increase the drilling rate, and significantly improve the drilling efficiency. Cementing with hollow glass microspheres has feature of high temperature resistance, high pressure resistance, stability, durability, and can be recycled. With the increase of pressure layer, low-density slurry cementing with hollow glass microspheres were adopted to consolidate the wells to prevent or reduce leakage, increase the cement top. It will improve single well production, and can be used effectively to obtain underground oil and gas and high temperature geothermal resources.
Hollow Glass Microspheres can be used in paint, rubber, plastics, FRP, artificial stone, putty and other products as filler and weight-reducing agent. It can also be the excellent sensitizer for emulsion explosives; Because of its high compressive properties, it can be used to produce high-strength low-density cement slurry and low density drilling fluid in oil and gas extraction industry.
