The environmentally friendly flame retardant MDH produced by Taixing is a high-performance inorganic flame retardant material specifically designed to solve the problems of traditional flame retardants, such as difficult environmental compliance, poor dispersibility, and high filling mechanical attenuation. It has the triple functions of flame retardancy, smoke suppression, and reinforcement, and is widely applicable to core fields such as wires and cables, new energy vehicles, building materials, and electronic appliances. It is also a core flame retardant material in many high-end fields.
1. Four dimensional synergistic flame retardant mechanism, double breakthrough in safety and efficiency
Innovatively breaking through the traditional single flame retardant path, constructing a four-dimensional collaborative system of "heat absorption and cooling+oxygen isolation and smoke suppression+carbon layer strengthening+free radical capture", with a flame retardant efficiency 45% higher than conventional MDH, providing ultimate safety guarantee for high-temperature processing scenarios:
-High temperature stable heat absorption: starting decomposition temperature at 340 ℃ (peak decomposition temperature at 435 ℃), perfectly suitable for high-temperature processing of polymer materials such as PP, PE, PA, PC, far higher than the 220 ℃ decomposition temperature of aluminum hydroxide (ATH), avoiding flame retardant failure caused by premature decomposition during processing; The heat absorption per unit mass reaches 1350J/g, which can quickly absorb the heat of combustion, block the chain reaction of combustion, and build a strong safety line for high-risk scenarios such as new energy battery packs and high-voltage cables.
-Low smoke, non-toxic and smoke suppression: During combustion, only clean water vapor is released, without the production of toxic gases such as hydrogen halides, dioxins, carbon monoxide, etc. The smoke density ratio (SDR) is ≤ 130, and the smoke toxicity reaches ZA1 level of GB/T 20284-2006 (the highest safety level), solving the fatal defect of halogen flame retardants that cause cancer during combustion. It is suitable for densely populated places such as hospitals, schools, and subways.
-Dense carbon layer protection: By using biomimetic interface modification technology to shape regular hexagonal sheet-like crystals (with a diameter to thickness ratio of 10:1), the decomposed magnesium oxide (MgO) particles can quickly deposit to form an inorganic barrier carbon layer with a density increase of 50%. It can maintain structural integrity for ≥ 150 minutes in a flame environment at 1000 ℃, effectively blocking the transfer of heat, oxygen, and combustible gases, and preventing flame spread and droplet phenomena.
-Free radical capture: The active groups contained in the modifier molecular chain can efficiently capture hydroxyl radicals (· OH) and hydrogen radicals (· H) generated during combustion, suppress gas-phase combustion reactions, further improve flame retardant efficiency, and achieve "gas-phase condensed phase" dual phase flame retardant synergy.
2. Biomimetic interface modification technology enhances compatibility performance by leaps and bounds
The original biomimetic interface modification process reconstructs the surface characteristics of MDH through molecular level encapsulation technology, completely solving the industry problems of poor compatibility and easy aggregation between traditional MDH and polymer substrates
-Excellent dispersibility: Activation index ≥ 99%, contact angle up to 155 °, surface transition from strong hydrophilic to hydrophobic oleophilic, excellent compatibility with polyolefins and engineering plastics such as PP, PE, EVA, ABS, PVC, etc., dispersion uniformity improved by 50% in polymer matrix, particle size distribution span (D90/D10) ≤ 2.0, no agglomeration, delamination, precipitation phenomenon, and dispersion effect can be visually verified by scanning electron microscopy (SEM).
-Mechanical performance reinforcement: After modification, MDH forms a "anchoring entanglement" dual bonding structure with the substrate, which not only does not reduce the mechanical properties of the material, but also plays a reinforcing role - under 50wt% filling in the PP system, the tensile strength can reach 20.5MPa, and the impact toughness can reach 5.2kJ/m2, far exceeding the industry average level, perfectly solving the core pain point of "flame retardant standard but product brittleness".
-Optimization of processing efficiency: With an oil absorption value as low as 20mL/100g, the melt flow rate (MFR) of composite materials can be significantly increased by more than 25%, reducing equipment torque and energy consumption during extrusion and injection molding processes, reducing mold wear, and increasing production efficiency by 22%. It is suitable for automated and continuous large-scale production lines.
1. In the field of new energy vehicles and charging stations
-High voltage wiring harness and battery pack: used for high-voltage cable sheaths, battery pack shells, and buffering materials in new energy vehicles. The decomposition temperature perfectly matches the working temperature of the battery (-20 ℃ -60 ℃), and can quickly absorb heat and cool down when the battery loses control, suppressing the spread of fire; Through rigorous certifications such as IEC 60332-3-24 (vertical combustion) and UL 2556, it meets the GB 38031-2020 power battery safety standard.
-Charging pile shell and cable: used for charging pile shell and charging gun cable sheath, with a flame retardant rating of UL94 V0 (1.0mm), strong weather resistance, stable performance in -40 ℃ -125 ℃ environment, can resist UV and acid rain erosion, and a service life of ≥ 15 years.
2. In the field of wires and cables
-Rail Transit and Communication Cables: Suitable for high-speed trains, subways, and high-speed rail cable sheaths and insulation layers, with low smoke and halogen-free characteristics to ensure personnel evacuation and smooth communication in case of fire. Smoke toxicity reaches ZA1 level, and has passed the EN 50305 rail transit cable standard, successfully applied to benchmark projects such as China's high-speed rail and European subways.
-Building and Data Center Cables: Used for wiring cables in high-rise buildings and data center rooms, complying with the GB/T 19666-2019 halogen-free flame retardant standard, with an oxygen index (LOI) of ≥ 35%, and can maintain circuit continuity for ≥ 180 minutes in case of fire, providing critical time for equipment power outage and data backup.
3. Building materials field
-Fireproof coating and insulation materials: As the core filler of expansion type fireproof coating, adding 30% -40% can make the fire resistance time of the coating ≥ 2h, suitable for steel structures and concrete buildings; Used for XPS/EPS insulation board, it enhances the flame retardant level to B1 level or above, complies with GB 55037-2022 "General Code for Building Fire Protection", and eliminates fire hazards of insulation materials.
-Flame retardant flooring and doors and windows: used as PVC flame retardant flooring, fireproof door and window filling material, with both flame retardant and decorative functions, no formaldehyde, no heavy metal release, in line with the national "Green Building Evaluation Standard", suitable for high-end residential, commercial complexes, hospitals and other places.
4. Electronic appliances and 5G communication field
-Home appliance shells and electronic components: used for home appliance shells such as televisions, refrigerators, and air conditioners, as well as protective cases for mobile phones and tablets. The flame retardant rating reaches UL94 V0 (1.0mm), with no toxic gas release, and complies with the RoHS 2.0 standard in the electronics industry. It has been approved by Samsung LG、 Midea and other leading enterprises have adopted it in bulk.
-5G base stations and communication equipment: used for 5G base station casings and communication base station antenna covers, with a low and stable dielectric constant (ε≈ 4.2), which will not interfere with 5G signal transmission; Resistant to high and low temperatures, moisture, and stable performance in harsh outdoor environments, ensuring long-term reliable operation of the base station.
5. Plastic and rubber fields
-General plastic modification: used for PP, PE, EVA and other plastic films, injection molded parts, pipes, etc. Adding 40% -50% can pass UL94 V0 certification, with a mechanical property retention rate of ≥ 92%, suitable for plastic trays, car bumpers, water supply and drainage pipes and other products.
-Special rubber products: used for EPDM, NBR and other special rubbers to produce cable sheaths, sealing rings, conveyor belts and other products. They have both flame retardant and anti-aging properties, and are stable in high temperature and oil immersed environments. They are suitable for industries such as mining, chemical, and machinery.
Q1: What are the core differences between environmentally friendly flame retardant MDH and traditional MDH or halogenated flame retardants?
A1: The core differences are reflected in the technical process, environmental performance, and application value: ① Compared with traditional MDH, this product adopts supercritical fluid preparation+biomimetic interface modification technology, which improves dispersibility by 50%, changes the mechanical performance from "attenuation" to "reinforcement", and reduces the addition amount by 20%; ② Compared with halogenated flame retardants, this product is halogen-free and non-toxic, and does not release carcinogenic substances during combustion. It fully complies with global environmental standards and avoids the compliance risks of halogenated flame retardants. At the same time, the smoke suppression effect is improved by 60%.
If you are looking for the environmentally friendly flame retardant MDH, Taixing will be your best partner. We will provide the highest quality products and the lowest prices!
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