高比重水酸化カルシウムの調製と応用
High specific surface area calcium hydroxide is a powder. It has a high specific surface area. It is used in many fields, like environmental protection and medicine. There are many methods for making high surface area calcium hydroxide. They include the mechanical, chemical precipitation, microemulsion, and template methods. The mechanical method uses force to break, grind, and refine calcium hydroxide particles. This increases their surface area and activity. The chemical precipitation rule is to react calcium ions with hydroxide ions. This generates calcium hydroxide by controlling the reaction conditions. Application of high specific calcium hydroxide High-calcium hydroxide has important uses in environmental protection. It is key in treating wastewater, cleaning […]
食品加工における超微粉砕技術の応用
Ultrafine grinding technology is a new technology developed in the past 20 years. Ultrafine grinding involves using force to crush solids. It does this by overcoming their internal cohesion. It crushes particles from above 3 mm to 10-25 microns. It was developed in the 1970s to adapt to modern times. A high-tech material processing technology developed through high-tech advancements. Ultrafine powder is the end product of ultrafine grinding. It has special physical and chemical properties. Ordinary particles lack these, such as good solubility, dispersion, adsorption, and reactivity. So, ultrafine powder is widely used in many fields. These include food, chemicals, medicine, cosmetics, pesticides, dyes, coatings, electronics, and aerospace. Technical features […]
改質炭酸カルシウムの用途は何ですか？
Modified calcium carbonate is calcium carbonate (CaCO3) that has been treated to improve its properties for specific uses. Calcium carbonate is cheap, abundant, and non-toxic. So, it is used in many industries. These include construction, plastics, rubber, pharmaceuticals, and food. Calcium carbonate’s modification mechanism has two types. One is chemical action, the other is physical action. Surface chemical effects, such as substitution, polymerization, grafting and hydrolysis of functional groups. The filler causes surface effects like adsorption, coating, and infiltration. These effects happen at the phase interface. When the filler is completely wetted, it causes physical adsorption. This happens on the high-energy surface of calcium carbonate. The energy there is higher […]
ナノ炭酸カルシウムには表面改質が必要である
Due to the surface effect and hydrophilic and oleophobic properties of nano-calcium carbonate, unmodified nano-calcium carbonate has shortcomings such as dispersion, poor affinity, and easy agglomeration when applied to organic polymers, seriously affecting the quality of the product. , leading to interface defects between the two materials, and the higher the filling amount of nano-calcium carbonate, the more obvious these shortcomings become, and excessive filling may even destroy the original performance of the material. Therefore, nano calcium carbonate is generally not used directly. Nano-calcium carbonate particles after surface modification usually form “soft agglomerations”, and this “soft agglomeration” can be disintegrated through mechanical shearing and ultrasonic oscillation, with just a little […]
炭酸カルシウムは、充填剤を添加せずにどのように使用できますか？
Superhydrophobic surfaces have a wide range of applications in a variety of fields such as waterproofing, anti-fog, self-cleaning, corrosion resistance, anti-icing, and flow resistance reduction due to their unique properties. Nevertheless, mass producing low-cost, low toxicity, easy to apply, and durable superhydrophobic coatings remains a challenge. In nature, there are a vast number of calcium carbonate materials with superior mechanical properties and simple components that have garnered widespread interest among scientists. Based on in-depth research on the nucleation and growth mechanisms of calcium carbonate, the regulation of biomineralization has been achieved, which has broad applications in fields such as anti-fouling, anti-scaling, self-cleaning, and oil-water separation. Numerous studies have shown that […]
炭酸カルシウムの性能パラメータは、プラスチック充填剤で改質されたマスターバッチにどのような影響を与えるか？
Calcium carbonate is the first choice of filler in plastic industry, widely used in plastic film, profiles, tubes, plastic knitting and artificial leather and other plastic industrial production, and can replace the expensive white pigment to play a certain role in whitening, to improve the surface luster of the product and the surface flatness and so on.So, what are the indexes of calcium carbonate for plastics industry? Why are these indicators required? Calcium content Calcium content is an important quality technical index of calcium carbonate. Modified masterbatch requires high calcium content of calcium carbonate, generally above 98%. The higher the calcium content, the more stable the processing performance of calcium […]
様々な産業における重質炭酸カルシウム粉末400メッシュの使用
According to different regions, production costs, material costs, and the whiteness of heavy calcium carbonate powder, the price of 400 mesh heavy calcium carbonate powder also varies greatly. Heavy calcium carbonate powder 400 mesh is usually used as filler, and is also widely used in daily chemical industries such as artificial floor tiles, rubber, plastics, papermaking, coatings, paints, inks, cables, building supplies, food, medicine, textiles, feed, toothpaste, etc. , used as a filler to increase the volume of the product and reduce production costs. When used in rubber, it can increase the volume of the rubber, improve the processability of the rubber, act as a semi-reinforcement or reinforcement, and can […]
工業生産における炭酸カルシウム粉末の応用と有効性
Calcium carbonate powder is widely used in industrial production and has many common applications and effects. Calcium carbonate powder is a powder, block. These industries include rubber, plastic, paint, and water-based coatings. Also, the construction (dry mortar, concrete), and fireproof ceiling industries. Product parameters: CaCO3 calcium carbonate: 98.8% whiteness 88-96 sieve residue (30.8um) “PH value 9 + 0.5 Fe2O3 iron oxide “0.03 siO2 silicon dioxide “0.04 MgO magnesium oxide <0.1 Ai2O3 aluminum oxide “0.01 burnt amount 43.5 moisture 0.05 calcium oxide 55 Calcium carbonate powder application scope and efficacy: 1. Heavy calcium carbonate powder for rubber industry Rubber – heavy calcium carbonate powder for rubber: 400 mesh, whiteness: 93%, calcium […]
炭酸カルシウムコーティングによる改質によって、粉体のどのような特性が向上するのか？また、改質剤はどのように選択すればよいのか？
Calcium carbonate powder is a commonly used inorganic filler, which is widely used in plastics, coatings, rubber and other fields. However, calcium carbonate powder does not fully meet the requirements for use in some aspects, such as poor fluidity, low dispersibility, poor weather resistance and other problems. In order to overcome these defects, the method of coating modification can be used to deal with them. This paper will introduce the role of calcium carbonate powder coating modification and related modifier types, advantages and disadvantages. I. The role of calcium carbonate powder coating modification Improving mobility and decentralization Calcium carbonate powder coating modification can make its surface smooth and uniform, reduce […]