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Classfication and Types of Glass Microsphere

1.0 Classification

1.1.1 Classification by Material system

I. Glass microspheres derived from silica: These chemically inert microspheres, which are mostly made of silica, are frequently added to paints and coatings and utilized in environmental sensing and monitoring.
II. Borosilicate glass microspheres: These glass compositions have sufficient thermal stability, which qualifies them for high-temperature uses such thermal insulators and catalyst supports.
III. Glass microspheres with calcium phosphate: They belong to a distinct class of microspheres where phosphate and calcium ions make up the majority of their makeup. These microspheres’ biocompatibility, bioactivity, and diverse qualities make them highly interesting for a range of biomedical and materials science applications.

IV. Composite glass microspheres: Certain qualities, including electrical conductivity or magnetic responsiveness, can be improved by adding other elements, such as metals or polymers, to the glass matrix.

1.1.2 Classification by Enivrnmental Fields

I. Environmental Remediation: To enable safe disposal of hazardous waste items, glass microspheres are employed to encapsulate and immobilize them.
II. Water Treatment: By eliminating pollutants and particle debris, they are used as filter medium to improve the quality of water.
III. Energy Efficiency: HGMs are low-weight fillers that improve insulation and lower energy usage in construction materials.

1.1.3 Grouping based on Primary Performance Elements
I. Buoyancy: HGMs’ low density makes them perfect for uses where buoyancy is needed.
II. Mechanical strength: Glass microspheres’ innate strength enables them to endure adverse climatic conditions and be used as building materials and road enhancement materials.
III. Chemical inertness: Glass microspheres can be used in hydrogen storage since they are resistant to chemical deterioration and corrosion.

IV. Thermal stability: Borosilicate glass microspheres are suited for high- temperature applications because to their exceptional thermal resilience.

1.2 Types of Glass Microspheres

1.2.1 Solid Glass Microspheres
Higher pressures may be tolerated by thick, strong, and solid glass microspheres. They are constructed from many glass varieties, each with unique benefits, including lead, borosilicate, and soda-lime glass. Lead glass microspheres, for example, are frequently used due to their high refractive index, which is advantageous in applications requiring optical qualities. Solid glass microspheres are utilized in situations where strength and structural integrity are essential, such as in brachytherapy, a medical procedure where the microspheres can be radiolabeled and used to selectively irradiate malignancies.

1.2.2 Hollow Glass Microspheres
The superior thermal insulation qualities and low density of hollow glass microspheres define them. They are lightweight due to their hollow structure, which helps reduce the weight of composite materials. These microspheres are utilized to produce lightweight materials without sacrificing strength in a number of sectors, including aerospace, automotive, and construction.

There are several ways to make hollow glass microspheres, including using rice husk ash, which provides a sustainable substitute for making glass microspheres for uses like road marking. Additionally, they are employed in the creation of lightweight cementitious composites, which may have better thermal and mechanical insulation qualities. Furthermore, because of their bioactive qualities, hollow glass microspheres can be employed in biological applications like the fabrication of 3D bone tissue.


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The use and characteristics of reflective glass beads on road marking

The organic combination of reflective glass beads and marking paint on road markings makes the lights on the marking line with glass beads when the car is driving at night, which can make the light of the lights reflect back in parallel, make the driver see the direction and improve the safety of driving at night.

The surface of marking glass beads is colorless and transparent, free of obvious bubbles and impurities, spherical, with good fluidity, easy to operate, reasonable particle size distribution, suitable for various pavement construction. After coating, the glass bead can be better coupled with the coating, and can also be moisture-proof and light proof. It is suitable for use in rainy, foggy and humid areas.

We are a manufacturer and supplier-Nanjing Liwei Chemical Co., LTD of glass beads, the quality of our products is guaranteed. At present, our company has sufficient inventory, and customers are welcome to order.

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Glass microsphere technology reduces weight for plastics

3M has recently introduced new glass microsphere technology that can reduce the density and weight of plastic products to reduce the weight of plastic parts, improve the dimensional stability of plastic parts, and reduce shrinkage and warpage. This technology has now landed in China.

3M glass microspheres are a low density additive with an average particle size of 16 to 70 microns and a density ranging from 0.15g / ml to 0.6g / ml. Glass microspheres are made of chemically stable borosilicate glass, which is insoluble in water and has a high strength-to-weight ratio. Compared with ordinary mineral fillers, 3M glass microspheres can improve the fluidity of the polymer, can be molded at a lower temperature and injection pressure, and can reduce the molding time and improve production efficiency. This material has good compatibility with common thermoplastics such as PP, nylon, and ABS.

Our company-Nanjing Liwei Chemical Co., LTD has been engaged in the production and export of glass microsphere products for many years, and has accumulated rich experience in foreign trade. The quality of our products is constantly improved with the continuous introduction of new technologies and new equipment. Customers are welcome to visit our company, negotiate and cooperate.

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Glass beads used in road marking construction

Glass beads for roads are mainly used in normal temperature and hot melt road marking paints. There are two types of pre-mixing and surface spraying. Pre-mixed glass beads can be mixed in the coating when producing hot-melt road coatings, which can ensure the long-term reflection of road markings within the life span. Another type can be spread on the surface of the marking line during the construction of the road marking to have an instant reflection effect.

The surface-treated coated glass microbeads are used in road marking construction, which can greatly improve the adhesion between glass microbeads and hot-melt marking lines and enhance the refractive index of road markings. And it has self-cleaning, anti-fouling and moisture-proof functions. Glass beads for roads are used to improve the reversal performance of pavement coatings and improve the safety of drivers at night.

Our company-Nanjing Liwei Chemical Co., LTD specializes in the production of glass microspheres for various purposes, including glass microspheres for road markings, colored glass microspheres and so on. Our products are specially exported to overseas markets, and we have accumulated many loyal customers over the years. We look forward to working with more customers from all over the world to jointly develop better products.

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