Glass Microspheres Introduction

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High-performance 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 Glass Microspheresat 21st century. Its true density is 0.15-0.60g/cm3 with 2-120 um in diameter. It owns features with light weight, large bulky, low thermal conductivity, high compressive strength, smoothly mobility etc.
It can be used in paint and coating, rubber, plastic, FRP, artificial stone, putty, synthetic foam board, explosive and other products as filler and weight -reducing agent.
It can also be use as the excellent sensitizer and  stablizer 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.

Why should we choose high -performance hollow glass microspheres?
1. 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%.
2. 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 could significantly reduces the consumption of resin, increase the amount of filler, and effectively reduces VOC indicators, and costs as well.
3. 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.

4. More economical by volume

The density of high performance hollow glass 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.

Glass Microspheres5. Adjusting the density of products

The density of hollow glass microspheres is usually 0.20~0.60/cm3, and the density of mineral filler is generally around 2.4~4.4/cm3. In order to obtain the equal size, 14 kilograms or more of talc must be used to obtain the same effect of 1kg of hollow glass micospheres. Hence the desired ideal density can be obtained by adding appropriate proportions of hollow microspheres.



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