The heat-resistant melamine cyanurate produced by Taixing innovatively adopts the core technology of molecular cross-linking reconstruction and high-temperature crystal stabilization modification to construct a dense three-dimensional network molecular structure. The 1% thermal decomposition temperature exceeds 350 ℃, the nitrogen content is ≥ 59%, and only 10% -20% addition is needed to achieve 1.6mm thickness UL 94 V-0 flame retardant, completely solving the industry problem of "high temperature resistance, processing failure, and large performance loss" of traditional MCA, providing a safe and compliant flame retardant solution for high-temperature processing of polymer materials.
1. Molecular cross-linking modification leads to a significant improvement in heat resistance performance
-Innovative high-temperature solid-phase cross-linking process: Under the action of specific catalysts, stable covalent cross-linking bonds are formed between MCA molecules, breaking the heat resistance limitations of traditional layered hydrogen bonding structures. The 1% thermal weight loss temperature is ≥ 350 ℃, which is more than 35 ℃ higher than ordinary MCA, and only enters the rapid decomposition stage at 480 ℃.
-Adapting to ultra-high temperature processing requirements: The processing temperature window covers 280-380 ℃, which can perfectly match the high-temperature extrusion and precision injection molding processes of engineering plastics such as glass fiber reinforced PA66 and PBT. The high-temperature processing process has no decomposition, volatilization, or yellowing, avoiding problems such as product bubbles and decreased mechanical properties caused by the decomposition of flame retardants.
-Excellent long-term thermal aging resistance: After being placed in a high temperature environment of 150 ℃ for 1000 hours, the retention rate of flame retardancy and physical properties is ≥ 92%, meeting the requirements for long-term high-temperature service scenarios such as engine peripheral components and LED lamp housings of new energy vehicles.
2. Triple flame retardant mechanism synergy, efficient protection in high temperature environments
-Building a comprehensive "heat absorption and cooling+gas phase dilution+condensed phase carbonization" high-temperature resistant and flame-retardant system: under high temperature conditions above 350 ℃, cross-linked MCA preferentially absorbs a large amount of heat and undergoes controllable decomposition, releasing inert gases such as nitrogen and water vapor to dilute the flammable atmosphere; At the same time, the decomposition products undergo a synergistic carbonization reaction with the substrate resin, forming a dense and high-temperature resistant ceramicized carbon layer that physically blocks the transfer of heat and oxygen. Even in a high-temperature continuous burning environment, it can maintain excellent flame retardant and protective effects.
-Low addition amount achieves efficient flame retardancy: adding 12% to the glass fiber reinforced PA66 (30% GF) system can achieve UL 94 V-0 grade, and when compounded with aluminum hypophosphite, the addition amount can be reduced to 8%; Adding 15% to PBT composite materials increases the limit oxygen index (LOI) to over 32%, which is 15% lower than the amount of ordinary MCA added.
-Zero halogen, low smoke, and low toxicity characteristics: During the combustion process, there is no release of toxic gases such as hydrogen halides and dioxins. The smoke density (DS, 4 minutes) is ≤ 145, and the smoke toxicity reaches the highest safety level of EU EN 13501-1:2024. It is suitable for scenarios with strict requirements for smoke toxicity, such as automotive interiors and enclosed electronic devices.
3. Interface compatibility optimization, balancing processing and mechanical properties
-Using high-temperature resistant silane coupling agent (KH-560) for coating modification: an affinity layer compatible with the polymer substrate and glass fiber interface is constructed on the surface of MCA particles, greatly improving the dispersion uniformity in glass fiber reinforced composite materials, solving the pain point of traditional MCA aggregation and reducing the mechanical properties of products. The notch impact strength retention rate of glass fiber reinforced PA66 products is ≥ 90%.
-Narrow particle size distribution ensures smooth processing: The average particle size D50 is 2-4 μ m, D98 ≤ 12 μ m, excellent flowability, and can be stored for 6 months in a 60% humidity environment without clumping. It can be directly fed without pre drying, and the extrusion process does not stick to the mold or block the mesh, making it suitable for large-scale continuous production.
-Stable electrical performance: volume resistivity ≥ 10 ¹⁴Ω· cm, leakage tracking index (CTI) ≥ 650V, added without affecting the dielectric properties of the substrate, suitable for products with high insulation requirements such as high-voltage connectors and charging pile components.
In the field of new energy vehicles
-Application: Battery pack casing, high-voltage connectors, motor components, engine peripheral skeleton
-Recommended formula: PA66+30% GF 80%+heat-resistant MCA 12%+compatibilizer 5%+lubricant 3%
-Advantages: With a thickness of 1.6mm and UL 94 V-0 rating, it is suitable for long-term service at 150 ℃ due to its temperature resistance. Its dielectric performance is stable, and it has passed the VOC testing standards in the automotive industry. Its lightweight design helps to improve its range.
-Application: LED lamp housing, inverter housing, PCB substrate, high-temperature fuse housing
-Recommended formula: PBT+20% GF 82%+heat-resistant MCA 10%+synergist 5%+antioxidant 3%
-Advantages: With a flame retardant rating of UL 94 V-0, excellent temperature resistance, good processing flowability, and a smooth and defect free surface, it meets the safety requirements for high-temperature operation of electronic devices.
In the field of glass fiber reinforced composite materials
-Application: High temperature resistant fiberglass components, aerospace lightweight components, high-temperature pipeline fittings
-Recommended formula: Epoxy resin+85% fiberglass+heat-resistant MCA 10%+curing agent 5%
-Advantages: Zero halogen environmental protection meets the B1 level requirements of the EU CPR building regulations, with high carbon density, acid and alkali corrosion resistance, excellent high temperature resistance, and suitable for outdoor high temperature and harsh environments.
Special engineering plastics field
-Application: High temperature resistant PEEK modified material, special nylon components, high temperature seals
-Recommended formula: PA46 85%+heat-resistant MCA 12%+antioxidant 3%
-Advantages: Low addition amount, high flame retardant efficiency, does not affect the high temperature resistance of the substrate, the product can be used for a short period of time at 180 ℃, meeting the high-end flame retardant needs of special engineering plastics.
If you are looking for heat-resistant melamine cyanurate, high-temperature resistant MCA flame retardant, glass fiber reinforced plastic flame retardant, high-temperature engineering plastic flame retardant, Taixing will be your best partner. Welcome to negotiate cooperation, we will provide the lowest price cooperation!
Address
Lvye Road West, Diao Town Chemical Industry Park, Mingshui Economic & Technology Development Zone, Zhangqiu, Jinan, China
Tel
