With the independently developed advanced chemical synthesis technology, we have achieved a comprehensive breakthrough in the three core performances of purity, particle size, and dispersion, providing a new domestic alternative option for high-end electronics, new energy, engineering plastics, and other fields, and breaking the long-term monopoly of foreign high-end products. As the core material for halogen-free flame retardants and functional fillers, the purity, particle size, and stability of magnesium hydroxide directly determine the safety and service life of high-end products. The traditional physical method of magnesium hydroxide is limited by raw materials and processes, presenting problems such as insufficient purity (≤95%), high content of impurities (iron, silicon, chloride ions), wide particle size distribution (10-50 μm), and easy agglomeration, which cannot meet the strict requirements of scenarios such as electronic packaging, thin-walled cables, and new energy vehicles. The R&D team has gone through years of technical research and development, innovatively adopting the liquid-phase precipitation + multi-stage purification + crystal plane control chemical method process, successfully developing ZF-21 ultra-fine high-purity magnesium hydroxide, achieving a leapfrog improvement in key performance. Core performance: Ultimate indicators, leading the industryZF-21 magnesium hydroxide, with cutting-edge chemical technology, builds "high purity, ultra-fine, high stability, and easy dispersion" four core advantages. The key indicators reach the international advanced level:Ultra-high purity: Purity is stable ≥ 99%, magnetic impurities such as iron, silicon ≤ 5 ppm, alkali metals (Na, K) ≤ 10 ppm, chlorine ions approaching zero, eliminating the risk of corrosion of precision circuits, and meeting the strict standards of electronic grade. Ultra-fine particle size: The average particle size is controlled at 200-500 nm, with a narrow particle size distribution, presenting a regular hexagonal plate-like structure, excellent single crystal dispersion, and effectively solving the problem of agglomeration. High stability: Decomposition temperature is as high as 340℃, far exceeding that of magnesium hydroxide (200℃), meeting the requirements of high-temperature processing of engineering plastics (280-320℃), with both thermal stability and flame retardancy fully satisfied. Strong compatibility: Customizable surface modification treatments such as stearic acid and silane, with a coating rate of over 99%, excellent compatibility with high-molecular materials such as epoxy resin, polyolefin, and rubber, and efficient flame retardancy with low addition amount, while retaining the mechanical properties of the substrate. Process innovation: Green manufacturing, strict quality controlFrom raw materials to finished products, the entire process is closed-loop controlled: Select high-grade magnesium salt raw materials, remove heavy metal impurities through multiple stages of filtration; Precisely control the reaction temperature, pH value and stirring rate in a constant temperature sealed reactor to achieve micrometer-level control of crystal growth; Combine ultra-pure water washing, low-temperature vacuum drying and sterile grading processes, with no pollutant emissions throughout the process, in line with EU REACH certification and domestic environmental protection standards. The company is equipped with a thousand-grade clean production workshop and a fully automatic production line. Relying on 15 years of research and production experience of magnesium salt materials, it has established a complete process quality control system from raw material selection, reaction synthesis, purification modification to finished product testing, and each batch of products is tested by precise equipment such as laser particle size analyzer and ICP mass spectrometer to ensure stable and consistent performance, and can be scaled up for mass production and supply.

Based on the abundant brucite mineral resources in China, the high-purity mineral-based magnesium hydroxide of magnesium hydroxide has achieved process upgrading and large-scale promotion. This product is made from natural brucite as the raw material, through processes such as selection, ultra-fine grinding, purification, and modification. With advantages such as controllable cost, environmental friendliness, and flame retardancy and smoke suppression, it has become the preferred material in fields such as engineering plastics, wires and cables, and environmental governance, promoting the development of magnesium-based functional materials towards a low-carbon and efficient direction. Natural endowment: Green raw materials sourced from mineral depositsThe core raw material of the mineral-based magnesium hydroxide of magnesium hydroxide is brucite (natural magnesium hydroxide), with the original ore containing Mg(OH)₂ content ranging from 90% to 98%, having few impurities and high whiteness, making it an ideal natural magnesium source. The brucite reserves in Liaoning and Shandong provinces of China are abundant, providing stable and low-cost raw material guarantees for the mineral-based magnesium hydroxide process, and compared with chemical synthesis methods, significantly reducing raw material and energy costs. Process innovation: From rough processing to refinedThe traditional mineral-based magnesium hydroxide process can only produce coarse powder with a particle size of 10–50 μm, with a purity of ≤ 94%, and its application is limited. Through technological upgrades, the modern mineral-based magnesium hydroxide adopts four core processes: low-temperature activation, ultra-fine air jet grinding, multi-stage purification, and surface modification. Selection and separation: High-grade brucite is crushed and then processed by manual and mechanical beneficiation to remove silicon, calcium, iron, etc. as impurities;Ultra-fine grinding: Using equipment such as air jet mills and vertical mills, the particle size can be controlled to 1–5 μm, and some high-end products can reach 0.8–1.5 μm;Purification and refinement: Wet classification + ultra-pure water washing, the purity is increased to 96%–98.5%, and the whiteness is ≥ 95%;Surface modification: Silane, stearic acid coating, to improve compatibility with polymeric materials.  Core advantages: High cost-effectiveness and environmental friendliness are combinedGreen and low-carbon: No chemical reactions throughout the process, no wastewater or exhaust gas emissions. The energy consumption is approximately 30% lower than that of chemical methods, in line with EU REACH and RoHS environmental standards. Flame retardant and smoke suppressant: The decomposition temperature is about 330℃. When heated, it decomposes, absorbs heat, and releases water vapor, resulting in a significant smoke suppression effect. There are no toxic halogen gases during combustion, and it is in line with the trend of halogen-free flame retardancy. Stable performance: Uniform particle size distribution, good thermal stability, low hardness, little wear on equipment, and excellent processing fluidity. Cost advantage: The cost of raw materials and processes is lower than that of chemical methods, making it suitable for large-scale industrial applications.

With the increasingly strict global "halogen ban" policies and the continuous improvement of fire safety standards, halogen-free flame retardancy has become the mainstream direction in the industry. Recently, domestic enterprises have launched a new type of highly efficient carbon-forming agent. By leveraging its catalytic carbon formation, dense layer formation, low smoke and toxicity reduction, and synergistic enhancement, it addresses the shortcomings of traditional flame retardant systems, such as low efficiency, high dosage, and damage to the substrate. It provides a green flame retardant solution for fields like cables, engineering plastics, and new energy, promoting the iterative development of flame retardant materials towards higher efficiency, environmental friendliness, and lower costs. Core mechanism: Constructing a "fireproof and heat-insulating carbon barrier."The carbon-forming agent is the core carbon source of the expanded halogen-free flame retardant (IFR) system, working in synergy with the acid source (polyphosphoric acid ammonium) and the gas source (tricyclic melamine). When exposed to fire, it rapidly catalyzes the dehydration and cross-linking of polymers at a low temperature range of 200–300°C, forming a continuous, dense, and high-strength honeycomb-shaped carbon layer. This carbon layer can isolate oxygen, block heat transfer, and inhibit the release of combustible gases, cutting off the combustion chain at its source, while significantly reducing smoke density and toxic gas emissions, achieving "fireproof, smoke suppression, and anti-drop" triple protection.  Technical breakthrough: Solving traditional problems, performance is comprehensively upgradedTraditional carbonizers (such as pentaerythritol) have issues such as poor compatibility, low thermal stability, easy migration, and weak water resistance. They tend to fail under high-temperature processing or in humid environments. The new carbonizer achieves a performance leap through three technological. innovations: nano-intercalation modification, super-branched structure design, and organic-inorganic composite. Efficient carbonization: An addition of only 2%–6% can significantly increase the residual carbon rate, with a 30% or more increase in flame retardancy compared to traditional products, easily achieving UL-94 V-0 flame retardancy, without dripping. Excellent thermal stability: With a temperature resistance of up to 280℃, it is suitable for high-temperature processing of PP, PE, ABS, nylon, etc., without decomposition, migration, or affecting the mechanical properties of the substrate; Green and environmentally friendly: Free of halogens and heavy metals, it complies with EU REACH, RoHS, and domestic environmental standards. It has low smoke and low toxicity during combustion, and is safe without secondary pollution. Strong synergy: It can be compounded with flame retardants such as magnesium hydroxide, aluminum hydroxide, and polyphosphoric ammonium, significantly reducing the total addition amount and balancing flame retardancy with material toughness and processing fluidity.