The birth of mineral pigments
The birth of seaweed mud mineral paint originated from the need to protect the architecture of religious halls and mural art in Swan Castle and even the whole Europe. In medieval Europe, religious myths and art were widely circulated, and Europe had the most gorgeous religious architecture and lime mural art in the world. However, these buildings and murals are easily destroyed by the harsh climate in the northern Alps, which requires the development of a coating with outstanding protective performance to restore the original appearance of buildings and murals and prolong their life. The Mineral Coatings Research Center of Merck Company in Germany has successfully developed a mineral coating with better protection by replacing petrochemical raw materials with natural mineral components. This coating can penetrate into the mineral matrix and react with its surface, so that the coating can be combined with the building mineral matrix. It can not only beautify the building, but also protect the building from all kinds of bad weather, thus improving the service life of the building. Mineral coatings minimize the use of petrochemical raw materials, thus greatly improving the environmental protection of products.
Composition of mineral coatings
The main components of seaweed mud mineral paint are primary minerals such as seaweed mud, and the mineral components of seaweed mud are mainly opal and its varieties, followed by clay minerals-hydromica, kaolinite and mineral debris. Mineral debris includes quartz, feldspar, biotite and organic matter. The content of organic matter ranges from trace to over 30%. Seaweed mud is usually light yellow or light gray, soft, porous, light, and has strong water absorption and permeability. Widely used in food, medicine, daily chemicals, nuclear waste and sewage treatment and many other fields. For example: beer production filtration, drinking water purification, plasma and medical injection filtration, beauty and skin care products processing and manufacturing. The special porous structure of natural diatomite can be observed under microscope, which is the reason why seaweed mud has characteristic physical and chemical properties. The content of silica in natural seaweed mud often exceeds 70%. Silicate minerals are composed of more than 40 elements. In addition to Si and O necessary for silicate, inert gas ions (such as Na+, K+, Mg2+, Ca2+, Ba2+, Al3+, etc. ) and some transition ions (such as Fe2+, Fe3+, Mn2+, Mn3+, Cr3+, Ti3+, etc. ) exists in the form of metal cations. In addition, (OH)-, O2-, F-, C 1-, [CO3 ]2-, [SO4] 2- exist in the form of additional anions. Isomorphic substitution widely exists in the chemical composition of silicate minerals. In addition to the substitution between metal cations, Al3+, Be2+ or B3+ often replace Si4+ in silicate free radicals, thus forming aluminosilicate, beryllium silicate and borosilicate minerals respectively. In addition, in a few cases, there may be (OH)- instead of O2- in silicate.
Characteristics of mineral pigments
1, removing formaldehyde
Free formaldehyde, benzene, ammonia, radon and TVOC emitted by some indoor materials (such as floors, core boards, sofas, furniture, etc.). ) after the renovation of the new house, harmful substances are continuously discharged every day. Seaweed mud mineral paint can effectively absorb and decompose harmful substances. Harmful substances such as decoration are absorbed, decomposed and eliminated by tens of thousands of small holes opened by seaweed mud.
2, refused to fade super weather resistance
Inorganic mineral coatings have stable molecular structure and excellent weather resistance, and are suitable for any climatic conditions. The application of inorganic mineral coatings proves that the color of German Hall seaweed mud mineral coatings can not be changed by harsh climatic environment or high-intensity ultraviolet radiation. It is exposed to high-intensity ultraviolet radiation-equivalent to a year's natural weather, and its color shows no signs of changing. This test method highlights this feature.
3, two-way ventilation to adjust humidity
Breathing and humidity regulation are the most basic functions of seaweed mud. When the room is wet, the micropores of diatom mud suck in the water in the air and store it, and release it when the air is dry. Therefore, people call seaweed mud "breathing wall", which is the most comfortable humidity for human body, without humidifier, power supply and manipulation, so as to keep indoor comfort between 40-70 degrees. Due to the crystallization characteristics of seaweed mud mineral coating, it has good water vapor permeability, which ensures that the water existing in masonry can be smoothly removed from the building structure. The permeability of the building structure is also guaranteed, so the coating will not blister and fall off.
4, anti-algae, anti-mildew and green antibacterial
The inorganic and alkaline components in German Hall seaweed mud mineral paint can resist the growth of fungi and algae, thus ensuring the sanitation and cleanliness of the coating surface. The characteristics of non-condensation on the surface make it possible to create a clean and healthy environment by keeping the surface dry. It can effectively kill bacteria such as Escherichia coli and Staphylococcus, inhibit the spread of pathogens such as influenza and diarrhea, and has good mildew resistance, and has inhibitory effects on Aspergillus Niger, Aspergillus flavus and Aspergillus terrestris.
Step 5 eliminate odor
Seaweed mud can remove all kinds of odors caused by domestic pollution, such as second-hand smoke, fishy smell and pet body odor. Keep the indoor air fresh at all times.
6, sound absorption and noise reduction
Numerous micropores of seaweed mud mineral powder in seaweed mud mineral paint can absorb and block the sound volume, the effect is more than twice that of cement mortar and slate with the same thickness, and the reverberation is shortened by 50%. After working all day, I really want to go home and have a quiet rest. Old people who sleep very lightly want to have a quiet sleep. However, the running sound of cars and motorcycles, the barking sound of pets and the hawking sound of people can't make us feel peaceful. If seaweed mud is selected as indoor wall, noise transmission will be greatly reduced.
7. Release negative ions and far infrared rays
Seaweed mud releases 1869 negative oxygen ions per second per square centimeter. Negative oxygen ions are floating around in the air, which feels like living in nature. In addition, the function of far infrared rays is conducive to regulating human microcirculation and improving people's sleep quality.
8, heat insulation and energy saving
Seaweed mud has low thermal conductivity and good thermal insulation performance, which is more than 6 times higher than cement mortar. Thereby greatly saving electric energy and heating cost. It provides superior conditions for the 65% energy-saving standard.
9. Long service life
The life of seaweed mud is more than 20 years, and it does not become warped, shed, fade and resist oxidation, and it is always as new. When the service life of latex paint and wallpaper is 3~5 years, it will become warped, shed, yellow, aged and moldy, and it should be done at least 4 times in 20 years. It not only increases the cost and manpower and material resources, but also continuously pollutes the indoor environment with high concentration every time it is replaced.
10, wall self-cleaning
Because seaweed mud is a natural mineral, it does not contain heavy metals and does not generate static electricity, so it does not absorb dust. If it is dirty, you can wipe it off with an eraser. For example, latex paint and wallpaper are organic and electrostatic, so it is very easy to absorb dust. For example, the wall of the bedside and the wardrobe have been left for a long time. If you remove them, you will find that the color is obviously different from other places.
1 1, fireproof and flame retardant
Seaweed mud wall can withstand the high temperature of 1300 degrees, only the melting point has no ignition point, and it will never burn when exposed to open fire and will not produce any toxic smoke. Latex paint and wallpaper are both toxic and flammable materials. When a fire breaks out, it is mostly choked to death by poisonous fog, not burned to death.
12, soft color
Seaweed mud has strong light absorption rate, and the reflected light is naturally soft. Soft colors are not easy to make eyes tired and reduce children's myopia rate. Now, children are under great pressure to study. Being stimulated by indoor light while constantly using your eyes will have a great impact on your future strength. Latex paint and wallpaper are dazzled by organic materials, strong glare and dense mechanical patterns.
13, crack resistance
Seaweed mud mineral coating has microcrystalline structure and the same natural characteristics as inorganic substances, and has the same thermal expansion and cold contraction coefficient as mineral matrix, because it can reflect light and thermal radiation, reduce the hot pressing of buildings and prevent building structures from cracking due to heating.
14, good water resistance
Seaweed mud mineral paint has excellent self-cleaning function and water resistance. Like human skin, the coating is impervious to water and can discharge "sweat". At the same time, the moisture in the substrate can be evaporated and discharged, so that the substrate can be kept dry, and the coating film will not blister, yellow or peel off.