Expanded glass bead is a kind of inorganic vitreous mineral material, which is processed by multi-stage silicon carbide electric heating tube type production technology. It is irregular spherical particles, internal porous cavity structure, glass closed surface, smooth luster, Stable physical and chemical properties, light weight, thermal insulation, fire resistance, high and low temperature resistance, anti-aging, low water absorption, etc. High-quality aggregate is an environmentally-friendly high-performance new inorganic lightweight heat-insulating material. Used in many fields such as industry, agriculture, chemical industry, metallurgy, building materials and so on.
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Current Status Analysis and Prospect Forecast of the Global Expanded Glass Beads (Granules) Industry
The application advantages of expanded glass microspheres in mortar are obvious. Spherical particles, glass surface, good fluidity in the mortar mixing project, good workability, can be evenly mixed in a short time, reduce the mortar's aggregate crushing in the dry and wet mixing process, and have stable thermal performance and Mechanical properties; light capacity, low thermal conductivity; low water absorption, easy to control in the mortar, small shrinkage, no hollowing and cracking, stable thermal and mechanical properties, and relatively increase the service life of the mortar . The specifications of expanded Glass Beads can be basically divided into 0.04-0.1mm, 0.1-0.3 mm, 0.3-0.5 mm, 0.5-1 mm, 1-2 mm, 2-4 mm according to their use. As of 2019 , The 0.5-1mm expanded Glass Beads used on the market account for 27.28% of the market share, ranking first, with the characteristic of normal distribution with 0.5-1mm as the mean.
Expanded perlite is a kind of natural minerals, which is a non-renewable resource. It has serious quality defects in its production and application, and is prone to serious quality problems. For example, the use of perlite for sound insulation, thermal insulation, and thermal insulation is common It is prone to cracks, hollow drums and other phenomena, and the overall performance is poor. However, due to its low price, some enterprises in actual production still use expanded perlite in order to reduce production costs. The expanded Glass Beads have excellent performance and can basically completely eliminate a series of problems in the production of expanded perlite, and the raw materials are taken from recycled daily glass, which is more environmentally friendly. With the unprecedented increase in environmental protection awareness around the world and countries with more developed economies, such as China, unswervingly promoting high-quality development, these factors will become the driving force for the vigorous development of the expanded Glass Bead industry. In 2015, the global annual output of expanded microbeads was 126,300 tons. By 2019, the global annual output of expanded microbeads has reached 184,400 tons. The development is quite rapid, and it is expected to maintain growth for a long period of time in the future. Broad application prospects.
In developed countries in Europe and the United States, the research and application of pulp and dry blended yarn pulp started earlier, and the technology is relatively mature, and attaches great importance to whether each material is environmentally friendly. At present, one comes from Germany and is made of 100% recycled glass. Poraver glass beads, a new type of environmentally friendly lightweight filler, has a wide range of applications in mortar and other products, such as architectural decoration, automobile manufacturing, industrial manufacturing and many other fields. As of 2019, expanded glass beads are used in the architectural decoration industry. The market share of the application is 45.08%, ranking first. In relatively backward regions such as Africa and the Middle East, environmental protection awareness is not so strong, and they are more sensitive to the price of raw materials. As of 2019, the market share of expanded glass beads in Europe is 45.88%, ranking first, while the market share of expanded glass beads in the Middle East and Africa is only 1.22%. From a long-term perspective, With the development of the global economy, relatively backward regions such as the Middle East and Africa have always had development potential. In addition, the market share of expanded Glass Beads in the Asia-Pacific region in 2019 is 20.51%. China, which has become the world's second largest economy, is a very large potential market. In the future, both environmental protection and quality requirements will be even greater. Strictly, this also means that expanded Glass Beads will further replace the existing fly ash float beads, glass microbeads, expanded perlite, polystyrene particles and many other traditional lightweight aggregates in the Chinese market.
The Impact of COVID-19 on the Expanded Glass Beads Industry
Since the outbreak of COVID-19 in early 2020, the virus has spread to all parts of the world, spreading widely, causing great harm to the global economy, and the impact of the epidemic varies from industry to industry. During the epidemic, governments of various countries have introduced a series of measures such as extending holidays and delaying operations to control the flow of people and reduce the occurrence of cross-infection. Many companies cannot carry out normal production and operation. The downstream of the expanded glass bead industry, such as the construction industry, is greatly affected by the epidemic, and the most important downstream industry of expanded glass bead is the building decoration industry, so it has a greater impact. In 2020, the annual output of expanded Glass Beads was 173,400 tons, which was a significant drop from 184,400 tons in 2019. This is also the first decline in the annual output of expanded microbeads in recent years. The impact of COVID-19 on the expanded Glass Bead industry is expected to be only temporary. After the epidemic is restored, it will continue to show its vitality for development.
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