Calcium carbonate-based composite materials are becoming a new star of environmentally friendly building materials

The influence of calcium carbonate can be said to be everywhere, ranging from buildings to life. It can be said that calcium carbonate is used everywhere. Therefore, it is absolutely impossible without calcium carbonate! Today, let's take a look at the unique charm and unlimited potential of 1 pickled calcium carbonate in the field of building materials, and see how it set off a 1 silent revolution in the field of environmental protection building materials.

Let's look at the 1 group of data first. In fact, China has become the world's largest producer and consumer of calcium carbonate. China's calcium carbonate production has soared by 123 in 7 years, reaching 67 million tons in 2023, accounting for nearly half of the global demand. In 2023, China's calcium carbonate market scale will reach 25.41 billion yuan, and it is expected to exceed the 100 billion mark by 2025, with a compound annual growth rate of more than 5%. What do these 1 data show? Is the calcium carbonate market is full of vitality, it also indicates that calcium carbonate in the field of environmental protection building materials will also have unlimited possibilities. Because in the current situation and background of vigorously promoting low-carbon environmental protection, calcium carbonate has gradually become the new darling of the environmental protection building materials industry.

Calcium carbonate-based composite materials have a significant green advantage, so it can stand out in the field of environmental protection building materials. In the traditional cognition, it is only a cheap filler-the value of each ton of aggregate is only 100 yuan. You should not underestimate it. Compared with other materials, it has already played a lot of materials on the two advantages of rich resources and low cost. So what are the green advantages of calcium carbonate?

First of all, calcium carbonate has a wide range of sources, low price, non-toxic, tasteless and good chemical stability, and is an ideal raw material for the preparation of environmentally friendly building materials. Secondly, by surface modification, compounding and other treatments, it can significantly improve its dispersion, compatibility and mechanical properties in building materials, thereby prolonging the service life of building materials and reducing resource waste. In addition, calcium carbonate can also be used as an additive for cement and concrete, which not only enhances the strength of building materials, but also reduces production costs, and achieves a win-win situation for economic and environmental benefits.

With the blessing of so many advantages, it is not surprising that calcium carbonate-based composites have become a new star in the field of environmentally friendly building materials.

As we all know, plastic and paper are the big market areas of calcium carbonate. In the plastics industry, calcium carbonate, as an important inorganic filler, is widely used in fillers and reinforcing agents, and the amount of calcium carbonate in plastics accounts for up to 33%. In the field of papermaking, calcium carbonate also occupies an important position, accounting for 30%. In addition, the application of calcium carbonate in coating, rubber, ink, pigment and other fields is becoming more and more widely. In fact, the application of calcium carbonate in these fields has promoted the green development of related industries, and laid a solid foundation for the wide application of calcium carbonate based composite materials.

Related studies show that the mass fraction of only 0.1% calcium carbonate can increase the dynamic elastic modulus of PHBV by 76% and the loss modulus by 175. These 1 data not only show the significant effect of calcium carbonate in improving material performance, but also reveal its great potential in promoting green upgrading in the building materials industry. Therefore, in the field of green environmental protection building materials, calcium carbonate has also attracted much attention, and calcium-based new materials are reshaping the life system of buildings.

Among them, there are three scenes have entered the industrialization outbreak period, they are: wall coating, energy conversion, building crack monitoring.

The addition of CaCO-TiO composite opacifier to wall coatings not only whitens and reduces costs, but also photocatalytically decomposes formaldehyde. The measured pollution degradation rate in a science and technology park in Beijing increases by 65%. Xi 'an Jiaotong University's calcium-based thermochemical energy storage system uses CaCO/CaO reversible reaction to store heat, raising the conversion efficiency of industrial waste heat to 85%, and will build a 90 million yuan production line in Qinhan New Town by 2025; the calcium carbonate/carbon nanotube conductive composite material is used for building crack monitoring, and the sensitivity of resistance change reaches 0.1μm, which is equipped with "early warning nerve" for infrastructure ".

The policy of the east wind blowing over, the 2024 edition of the "Industrial Structure Adjustment Guidance Catalogue" listed nano calcium carbonate as an encouraged project; the State Council requires that the strategic emerging industries of central enterprises account for 35% of the revenue in 2025, forcing state-owned enterprises to increase research and development.

Material exploration and industrial construction have been vigorously promoted. Shandong Energy has explored the calcium-based material-CO₂ capture-microalgae carbon sequestration technology chain to build a negative carbon industrial park. It is predicted that intelligent responsive calcium-based composite materials (temperature control/self-repair) will occupy 30% of the high-end market in 2030.

With the tightening of national environmental protection policies and the acceleration of industrial upgrading, green production processes will become the mainstream of various industries. At present, the construction industry is also undergoing unprecedented changes, from quantitative change to qualitative change will pay more attention to quality and health and other factors. Calcium carbonate-based composite materials will pay more attention to the development and production of environmentally friendly products, such as calcium carbonate fillers in degradable plastics, which not only fits the "double carbon" goal, but also meets the urgent market demand for environmentally friendly building materials. Facing the future, the development prospects of calcium carbonate-based composites are very broad.

Technological innovation is the key to promote the high-end development of calcium carbonate-based composites. When a piece of ordinary limestone is transformed into a "carbon neutral" pioneer through nanocomposites, the story of calcium carbonate-based composites also confirms that the greatest changes often begin with the simplest substances. With technological breakthroughs and industrial convergence, we have reason to believe that this "small stone" carrying trillions of dreams is reshaping the symbiotic logic of architecture and environment.