Glass bubble,Hollow glass microspheres , Glass sphere beads, Manufacturer & suppliers

Hollow glass beads are small, lightweight, and spherical particles made of glass. They are commonly used in various industrial applications such as coatings, plastics, and composites due to their unique properties such as low thermal conductivity, low density, and good insulation.

The production process of hollow glass beads typically involves the following steps:

1. Glass melting: Raw materials such as silica sand, soda ash, and limestone are melted in a furnace at high temperatures (around 1500°C) to form a glass melt.
2. Glass refining: The glass melt is refined to remove impurities and homogenize the composition.
3. Glass blowing: The glass melt is fed into a blowing machine that blows the molten glass into small hollow bubbles using compressed air. The size of the bubbles can be controlled by adjusting the air pressure.
4. Cooling and solidification: The hollow glass bubbles are then cooled and solidified in a cooling chamber. The cooling process is critical to ensure the beads have a uniform size and shape.
5. Separation and classification: The cooled glass beads are separated from the cooling medium and classified based on their size and density.
6. Surface treatment: The surface of the hollow glass beads can be treated with various coatings or surface modifiers to improve their properties such as adhesion, hydrophobicity, and compatibility with different matrices.
7. Packaging and shipping: The final product is packaged in bags, drums, or bulk containers and shipped to customers.

Overall, the production of hollow glass beads is a complex process that requires precise control of various parameters such as temperature, pressure, and cooling rate to ensure consistent quality and performance.

Hollow glass microspheres (HGMs) are a type of lightweight material that have been studied for their potential application in hydrogen gas storage. Hydrogen has been identified as a promising alternative fuel source, but it is difficult to store due to its low density and high reactivity. HGMs, with their high surface area and low density, have the potential to overcome some of the challenges of hydrogen storage.

Hollow glass microspheres can be used as a support material for metal hydrides, which are compounds that can store hydrogen in a solid state. The hollow glass microspheres provide a high surface area for the metal hydride to adhere to, which increases the storage capacity of the material. The hollow nature of the HGMs also allows for the easy diffusion of hydrogen into and out of the material, which is critical for efficient storage and release of the gas.

Research has shown that hollow glass microspheres can significantly improve the hydrogen storage capacity of metal hydrides. Additionally, HGMs have the advantage of being lightweight and easy to handle, making them attractive for use in portable hydrogen storage applications.

During the process of bilateral cooperation, Lu Jianping said that everyone has never been “red faced”. “Even if we encounter some problems, it is our main line to communicate quickly and clearly, maximize cooperation, minimize disputes, and achieve harmonious development.”

Jingjiang in late spring ushered in another continuous drizzle. Although this is a weekend, Song Guangzhi, who arrived overnight from Beijing, did not come here to enjoy the spring scenery along the Yangtze River. He quickly finished his breakfast and immediately began the day’s work.

Song Guangzhi is a researcher of the Institute of Physical and Chemical Technology of the Chinese Academy of Sciences (hereinafter referred to as the Institute). He and his colleague Zhang Jingjie led the team to put the industrial work of the hollow microsphere project here. In January 2013, the Institute of Physical and Chemical Technology and the local enterprise Jiangsu Huaxing Heavy Industry Machinery Manufacturing Co., Ltd. jointly established Zhongke Huaxing Jingjiang New Material Engineering Co., Ltd.

The purpose of his trip is to provide on-site technical guidance to the Zhongke Huaxing workshop.

“We both have quite high expectations for the cooperation of this project,” Lu Jianping, General Manager of China Science Huaxing, said in an interview with China Science Daily. “Currently, we are advancing in the expected direction in an orderly manner, and we believe that we will succeed in the future.”

“Love at first sight”

Lu Jianping said that as a business owner, he hopes that the cooperation with scientists from the Chinese Academy of Sciences will bring not only economic benefits, but also social benefits.

With the support of the national “863” plan, the hollow glass microbeads project developed by the Institute of Physics and Chemistry has independent intellectual property rights. In today’s era of increasing attention to environmental issues, the introduction of environmentally friendly new materials into the market is a positive response made by enterprises and research institutes.

After encountering the hollow glass micro bead project of the Institute of Physics and Chemistry, CSHI is facing the challenge of enterprise transformation and upgrading.

A series of factors, such as the appreciation of the RMB, inflation, rising labor costs, and the international financial crisis, continue to stimulate the nerves of domestic small and medium-sized enterprises, affecting the development of some small and medium-sized enterprises to a large extent. Many enterprises are facing unprecedented difficulties and challenges in their production and operation.

Although Huaxing Heavy Industry is not here yet, it hopes to take precautions. “Therefore, transformation and upgrading have been put on our agenda,” Lu Jianping admitted. This time, he will lead the team to take the path of “innovation main body”.

In 2012, a trip to Beijing for scriptures became a transfer. At that time, the Jingjiang Science and Technology Bureau led a team and led dozens of Jingjiang enterprises to investigate projects at several research institutes of the Chinese Academy of Sciences.

After arriving at the Institute of Physics and Chemistry, a leader of the Jingjiang Science and Technology Bureau discovered that the entrepreneur around him, Lu Jianping, had “disappeared.”. It turned out that he had a crush on the hollow micro bead project of Song Guangzhi and Zhang Jingjie at a glance, and had already started the industrialization discussion together with scientific researchers.

“We are grafting advanced technology from the Chinese Academy of Sciences at a high level, aiming to create an energy-saving and environmentally friendly building material industrialization base, and seeking a breakthrough in self transformation,” he said.

Small beads with high energy
Therefore, through the Jingjiang Municipal Bureau of Science and Technology, Huaxing Heavy Industry and the Institute of Physics and Chemistry were engaged in a marriage. “This has also become one of the key factors that our cooperation can achieve,” Lu Jianping said.
Under a high-power electron microscope, high-performance hollow glass microspheres appear to be crystal clear hollow glass beads. Due to this unique structure at a very small scale, hollow glass beads have become a new type of lightweight material with extensive uses and excellent performance that has been developed in recent years.
Song Guangzhi and Zhang Jingjie have developed advanced preparation techniques for hollow glass microspheres over the past decades. In December 2006, the technical achievement of “surface modification of hollow glass beads” passed the appraisal jointly organized by relevant departments and the Chinese Academy of Sciences.
Since then, with the continuous support of projects such as the National “863” Plan, the Institute of Physics and Chemistry has continuously deepened its research on hollow glass microspheres, optimized its preparation technology and production process, and continuously improved its product performance.
The research results of hollow glass microspheres have been gradually improved, laying a solid foundation for industrialization. For China Science and Technology Huaxing, the purpose of industrialization is very clear. “We have conducted multiple surveys and tests to determine the main development route of environmentally friendly building materials,” Lu Jianping said.
Although any new product needs to undergo a period of testing to enter the market, he is confident: “Currently, there are not many environmentally friendly building materials on the market, which is a great opportunity for us to enter the market.”
Lu Jianping said that currently, partners have used and tested Zhongke Huaxing’s products, and customers are very excited about Zhongke Huaxing’s products.
“Two sets of thinking” do not exist
During the process of bilateral cooperation, Lu Jianping said that everyone has never been “red faced”. “After we encounter some issues, we quickly communicate clearly to maximize cooperation and minimize disputes. Harmonious development is our main line.”
Lu Jianping disagrees with the statement that scientists and entrepreneurs have “two sets of thinking modes” and hinder the cooperation between scientific research institutions and enterprises: “because what we pursue in cooperation is win-win.” It is true that the thinking of scientific researchers is more inclined to the progressiveness of achievements; The thinking of enterprises is more biased towards cost control. “But there is no conflict between the two. The progressiveness nature of the results does not mean that the cost is increased or uncontrollable. On the contrary, it can promote production process innovation and achieve the effect of reducing costs.” Lu Jianping said.
On the other hand, Zhongke Huaxing’s business thinking is not blindly pursuing profit maximization. “We have a long-term strategic plan, and maintaining the progressiveness of scientific research achievements is the constant purpose in our enterprise development plan.” He said.
In the cooperation, the Institute of Physics and Chemistry and China Science and Technology Huaxing understand each other and learn from each other’s strengths to complement each other. What the enterprise possesses is business strategy and practical experience, while what the scientific research institutions possess is the basic conditions for conducting research work, advanced technology, and scientific logical thinking methods. The combination of the two will greatly contribute to the long-term development of both sides.

ARTICLE SOURCE: China Science Daily

Hollow glass microspheres are used in a number of applications that require their introduction into a matrix material through a variety of mixing operations.

In order to survive this processing, the spheres must be able to withstand tremendous pressures. To characterize the strength of the hollow glass microspheres as well as a comprehensive understanding of sphere mechanical properties, equipment was designed and constructed that could individually test spheres.

By the use of Classical Buckling Theory for isostatic compression and by developing a theory for failure under uniaxial compression, hollow glass microsphere strength can accurately be determined.

Established cell isolation and purification techniques such as fluorescence-activated cell sorting (FACS), isolation through magnetic micro/nanoparticles, and recovery via microfluidic devices have limited application as disposable technologies appropriate for point-of-care use in remote areas where lab equipment as well as electrical, magnetic, and optical sources are restricted.

We report a simple yet effective method for cell isolation and recovery that requires neither specialized lab equipment nor any form of power source. Specifically, self-floating hollow glass microspheres were coated with an enzymatically degradable nanolayered film and conjugated with antibodies to allow both fast capture and release of subpopulations of cells from a cell mixture.

Targeted cells were captured by the hollow glass microspheres and allowed to float to the top of the hosting liquid, thereby isolating targeted cells. To minimize nonspecific adhesion of untargeted cells and to enhance the purity of the isolated cell population, an antifouling polymer brush layer was grafted onto the nanolayered film.

Using the EpCAM-expressing cancer cell line PC-3 in blood as a model system, we have demonstrated the isolation and recovery of cancer cells without compromising cell viability or proliferative potential. The whole process takes less than 1 h. To support the rational extension of this platform technology, we introduce extensive characterization of the critical design parameters: film formation and degradation, grafting with a poly(ethylene glycol) (PEG) sheath, and introducing functional antibodies.

Our approach is expected to overcome practical hurdles and provide viable targeted cells for downstream analyses in resource-limited settings.

Hollow glass microspheres, also known as microbubbles, glass bubbles, or bubbles, are composed mostly of a borosilicate-soda lime glass combination formulation and have advantages such as strong heat and chemical resistance, as well as low density.

These microspheres can also have conductive coatings applied on them. The adjusted thickness of the conductive coating on microbubbles provides superior shielding and conductivity qualities. Electronics, medical devices, military applications, biotechnology, and a variety of other specialist sectors can all benefit from these.

The hollow glass microspheres have a remarkable spherical form that provides numerous significant benefits, including decreased shrinkage and warpage, better flow/lower viscosity, and greater fill loading.

It also enables the hollow glass microspheres to easily mix into compounds, making them very flexible to a variety of manufacturing processes like as casting, spraying, and moulding.

In recent years, the demand for sealant in the construction field has been increasing, among which the silicone sealant is widely used and has a large amount. The silicone sealant is prepared with polysiloxane as the main raw material, and its molecular chain is composed of siloxane chain, which is cross-linked to form a network of siloxane chain skeleton structure during the curing process. The bond energy of Si-0 (444 kJ/mol) is very high, which is not only much higher than the main chain bond energy of other ordinary polymers, but also higher than the UV light energy (399 kJ/mol). Therefore, Si-0 has excellent high and low temperature resistance, weather resistance and UV light aging resistance.

5235 special silicone modified polyester resin is a specially treated silicone modified polyester resin with excellent film-forming property, high gloss, high temperature resistance, high hardness baking resin, excellent physical compatibility and excellent storage stability. The hardness reaches 7H after complete curing on stainless steel plate.

1) High hardness and good toughness: the surface hardness of stainless steel substrate can reach 7H after curing and film forming;

2) Good adhesion: it can reach grade 0 on metal substrates such as stainless steel, and some substrates can reach grade 1; 3) High fullness, high gloss, leveling;

4) High transparency: the paint film is colorless and transparent, with light transmittance ≥ 92%; (Various colors can be modulated by yourself)

5) Good heat resistance: varnish resin can withstand 350 ℃ high temperature for a short time;

6) With excellent storage stability, it can grind various high-temperature resistant color pastes

7) Excellent compatibility with any other silicone polyester resin

8) It can be solidified to form film in the temperature range of 180-280 ℃

Application range of resin:

1. Used separately for high-temperature resistant coatings, such as hairpin coating, non-stick pot coating, high-temperature resistant industrial coating, etc

2 Grind various high-temperature resistant color pastes

3. Mix with other resins to improve heat resistance and luster

4. Replacement of general nano-silicone resin

In addition, silicone sealant is also a good adhesive material. Its adhesive performance to glass is very excellent, and it is often used for sealing and bonding of double-layer insulating glass. Reinforcing filler accounts for a relatively high proportion in the formula of silicone sealant, and the commonly used ones include Nanomaterial calcium carbonate, fumed silica, carbon ink, etc. When the nanomaterial calcium carbonate is used as reinforcing filler, the dosage can reach 60% of the total mass of the system. In addition, some silicone sealants will also add incremental fillers to reduce costs, adjust and improve thixotropy and fluidity. The commonly used incremental fillers are heavy calcium carbonate. The common feature of the above fillers is that the density is high, such as the density of Nanomaterial calcium carbonate is 2.7g/cm3, which also leads to the high density of the final product sealant, and the density of most silicone sealant is about 1.5g/cm3. Hollow glass microsphere, also known as hollow glass microsphere, is a lightweight inorganic powder material developed in recent years.

Hollow glass beads are borosilicate glass formed at high temperature (>1400 ℃) and have stable chemical properties. The hollow glass bead is a hollow, thin-walled closed spherical structure with thin gas inside. This special structure makes it have the characteristics of low density, low thermal conductivity and high compressive strength. The true density of hollow glass bead is 0.12-0.70g/cm3, and the thermal conductivity is 0.038-0.085 W/(m · K). It can be used as a semi-reinforcing filler in silicone sealant, effectively reducing the density and thermal conductivity of the sealant, and also improving the thermal deformation temperature of the sealant. In addition, hollow glass beads generally do not react with substrates or other substances, and are suitable for a variety of systems.

When heated, the volume increases 50 to 170X depending on the grade used.

Expandable hollow glass microspheres benefits include weight reduction, improved moldability, thermal and sound absorption.

Hollow glass microspheres are a precision foaming agent that are characterized by easy control of specific gravity, retention of closed cells, small sphere diameter and uniform distribution.

Hollow glass microspheres provide the flexibility to be foamed in resin and within high permeability materials such as fibers and paints.

Hollow glass microspheres developed in recent years, are a new type of materials which shows a greater use and an outstanding performance. The product, made mainly from borosilicate, is a hollow microspheres whose grain size is 10-250 micron and wall-thickness 1-2 micron.

Hollow glass microspheres have many advantages substantial weight saving, low heat conductivity, high mechanical strength and fine chemical stability. With treated specially, hollow glass microspheres have the properties of lipophilicity and hydrophobicity and are very easily dispersed in organic materials such as resin. It is widely used in the composite materials such as FRP(fiber reinforced plastics),man-made marble and man-made agate.

Hollow glass microspheres have the distinct results of decreasing weight, sound insulation and heat preservation, thus the products have the excellent performances of anti-crazing and re-processing. Hollow glass microspheres are widely to be used in a range of fields such as aviation, space, new bullet train, luxurious yacht, heat insulating dope, bowling balls and play a unique role.

Glass microsphere has the advantages of light weight, low thermal conductivity, non-toxic, incombustible, good chemical stability and high dispersion. These advantages can be reflected in the finished products after molding. The final product is light in weight, easy to install, and especially suitable for manufacturing products requiring buoyancy.

Hollow glass beads can be used in many material fields to improve or improve the water resistance, compressive strength, shrinkage and impact strength of materials. Low density, can make lighter parts; The porosity and specific surface area are low, and the bead absorption resin is less, so the viscosity is not high even if the amount of filling is high; It is chemically stable and inert; Good anti-cracking performance, and the final product is easy to be post-processed, such as drilling, cutting and polishing, which is another advantage that hollow glass beads are easy to be damaged.

Because, like the shock absorber, the compressive strength and impact strength of the product are also improved.

Because the hollow glass bead is destroyed prior to the resin matrix, the impact degree of the product is reduced.

It is an advantage. On the one hand, it can reduce

Application of glass beads in synthetic foam

Glass bead resin composite is usually called synthetic foam. The main feature of this composite material is its low density. It is a multifunctional composite material with wide mechanical properties and a combination of vibration reduction, insulation and fire prevention.

2 Application of glass beads in plastics and rubber

In the plastic industry, glass bead is an inorganic powder filler developed in recent years, with high filling capacity. The plastic filled with it has excellent rheological processing properties, uniform shrinkage, and increased impact resistance. Glass bead is used for filling UHMWPE material, which not only acts as a solid lubricant to improve processing fluidity, but also modifies the comprehensive mechanical properties of UHMWPE material to improve its strength and wear resistance

The tensile strength, impact strength, hardness and other mechanical properties of nylon 6 with glass beads are improved, and the material aging caused by light and heat can be prevented. With the increase of glass bead content, the Martin heat resistance temperature of the material increases.

Application of glass bead in spacer material of liquid crystal display (LCD)

The spacer material of liquid crystal display is the focus of research at home and abroad, which is also one of the more promising applications of glass beads [7]. At present, LCD spacer materials often use various organic particles, and also use ground optical fibers. These materials have different degrees of shortcomings

Application of glass bead in explosives

The introduction of hollow glass beads into emulsion explosives overcomes the above shortcomings, greatly improves the detonation performance of explosives and significantly improves the storage stability

5 Application in cement products

The density of hollow microsphere is low and it is not easy to absorb water. It can reduce the density of grouting cement by adding it alone or together with expansion additives

6 Application in coatings

The glass bead is applied to the coating, and the solar heat reflection and thermal insulation coating prepared has high solar heat reflection and high radiation performance, which improves the thermal insulation performance of the coating, and is used in reflective pavement and decoration and beauty joints

7 Application in medical field

Coupling treatment of hollow glass microspheres and electroless nickel plating on the surface of hollow glass microspheres

After sex, it has a promising prospect in medical immunoassay technology.

Application of modified glass beads in electromagnetic shielding and microwave absorption

Glass beads are widely used in building materials, plastics, rubber, coatings, chemistry, metallurgy, navigation, aerospace and other fields, and have irreplaceable important applications. The modified hollow microspheres have electrical and magnetic properties, which can be used in the fields of microwave absorption or electromagnetic shielding to prepare functional materials and broaden its application range. Due to the high energy consumption of artificial glass beads, the cost of glass beads obtained from fly ash can be greatly reduced, so the bead filler will have a good development prospect. At present, the utilization of fly ash hollow microsphere in China is still at the initial stage, and the utilization rate and utilization level need to be developed. As a new multi-functional material, its application prospect will be better and better.