Composite MCA Flame Retardant

Single MCA faces industry pain points of "flame retardant efficiency bottleneck and high additive degradation performance". The composite MCA flame retardant produced by Taixing innovatively adopts the core technology of MCA phosphorus synergist molecular composite+interface compatibility modification, and constructs a triple synergistic flame retardant system of "gas phase suppression condensed phase carbonization ceramic protection". With a nitrogen content of ≥ 45% and a phosphorus content of ≥ 8%, it can achieve 1.6mm thickness UL 94 V-0 flame retardant with only 6% -18% addition, completely solving the problems of low efficiency, poor compatibility, and large mechanical loss of traditional single flame retardants, and providing a cost-effective composite flame retardant solution for the global manufacturing industry.

Core strengths

1. Phosphorus nitrogen synergistic flame retardant, efficiency leap breaks through industry bottlenecks

-Innovative molecular level composite process: MCA is combined and coated with environmentally friendly phosphorus based synergists (ammonium polyphosphate derivatives) through hydrogen bonding to form a stable phosphorus nitrogen synergistic system. The flame retardant efficiency is increased by more than 50% compared to single MCA, breaking through the limitations of traditional nitrogen based flame retardants in non-polar materials.

-Triple synergistic flame retardant mechanism: At high temperatures, MCA decomposes and releases inert gases such as nitrogen and water vapor to dilute the flammable atmosphere; Phosphorus based synergists catalyze the dehydration of substrates into carbon, forming a dense carbon layer that blocks oxygen and heat transfer; The two work together to generate a ceramicized carbon layer, which can maintain structural integrity even under continuous burning, achieving efficient protection of "extinguishing immediately upon ignition".

-Low dosage balancing flame retardancy and cost: Adding 8% to the PA66 system can achieve UL 94 V-0 grade, reducing the dosage by 30% compared to a single MCA addition; Adding 15% to PE cable material can pass the IEC 60332-3 bundle flame retardant test, increase the limit oxygen index (LOI) to over 32%, and significantly reduce the overall cost of the formula.

2. Interface compatibility modification, achieving a win-win situation for mechanical and processing properties

-Adopting customized silane coupling agent composite coating technology: constructing an affinity layer on the surface of the composite powder that is compatible with both polar and non-polar substrates, solving the pain points of uneven dispersion and weak interfacial bonding of a single MCA in glass fiber reinforced materials. The dispersion uniformity is improved by 70%, and there are no white spots or pitting defects on the surface of the product.

-Minimizing the loss of mechanical properties: The addition has minimal impact on the mechanical properties of the substrate. The retention rate of the notch impact strength of glass fiber reinforced PA66 products is ≥ 92%, and the retention rate of the fracture elongation of TPE materials is ≥ 90%. It perfectly balances the flame retardant performance and material structural strength, meeting the requirements for the use of structural components.

-Suitable for multiple processing techniques: excellent powder dispersibility, angle of repose ≤ 30 °, and storage in a 60% humidity environment for 3 months without clumping; The processing temperature window covers 240-350 ℃ and can be matched with various processes such as high-temperature extrusion, precision injection molding, granulation, etc. The melt has good fluidity, does not stick to the mold, does not block the mesh, and is suitable for large-scale continuous production.

3. Full dimensional stability performance

-Excellent thermal stability: 1% thermal weight loss temperature ≥ 320 ℃, entering the rapid decomposition stage at 460 ℃, no decomposition or volatile gas release during high-temperature processing, avoiding defects such as bubbles and warping in the product, and adapting to the high-temperature forming requirements of new energy vehicle components.

-Outstanding weather and hydrolysis resistance: After 1500 hours of xenon lamp aging test, the retention rate of flame retardancy and mechanical properties is ≥ 90%; After being placed in a humid and hot environment of 85 ℃/85% RH for 1000 hours, there is no moisture absorption or agglomeration, and no performance degradation, meeting the long-term service requirements of outdoor cables and rail transit components.

-Stable and reliable 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.

Application scenarios

In the field of new energy vehicles

-Application: Battery pack casing, high-voltage wire harness sheath, motor components, intelligent cabin interior

-Recommended formula: PA66+30% fiberglass 84%+composite MCA 12%+antioxidant 2%+lubricant 2%

-Advantages: 1.6mm thickness meets UL 94 V-0 level, temperature resistance suitable for use in environments ranging from -40 ℃ to 150 ℃, VOC emissions meet standards, and comply with the IATF 16949 quality management system standard in the automotive industry.

Wire and cable field

-Application: Low smoke halogen-free PE cable material, charging pile cable, rail transit special cable

-Recommended formula: PE base material 82%+composite MCA 15%+compatibilizer 2%+anti-aging agent 1%

-Advantages: Passed IEC 60332-3 bundle flame retardant test, low smoke and low toxicity, tensile strength ≥ 15MPa, elongation at break ≥ 450%, suitable for the strict requirements of building wiring and new energy charging piles.

Electronic and electrical field

-Application: connector housing, power adapter housing, PCB board bracket, relay components

-Recommended formula: PBT+20% fiberglass 86%+composite MCA 10%+compatibilizer 3%+lubricant 1%

-Advantages: Stable flame retardant performance, excellent dielectric properties, good processing flowability, suitable for thin-walled precision injection molding process, meeting the demand for lightweight and miniaturization of consumer electronics.

In the field of thermoplastic elastomers

-Applications: Medical catheters, sealing strips for new energy vehicles, wearable device accessories

-Recommended formula: medical grade TPE 90%+composite MCA 8%+anti-aging agent 1%+compatibilizer 1%

-Advantages: The flame retardant rating reaches UL 94 V-0 level, the elastic recovery rate is ≥ 90%, there is no precipitation or odor, and it has passed ISO 10993 biocompatibility testing, meeting the needs of medical and consumer electronics scenarios.

If you are looking for composite MCA flame retardants, phosphorus nitrogen synergistic MCA, nylon specific composite MCA, Taixing will be your best partner!