Thermoplastic Ammonium Polyphosphate

Traditional ammonium polyphosphate has pain points such as poor compatibility with thermoplastic substrates, easy agglomeration during processing, and affecting the mechanical properties of products, making it difficult to adapt to large-scale production needs. The thermoplastic ammonium polyphosphate produced by Taixing innovatively adopts the core technology of directional polymerization thermoplastic compatibility modification+silane polyolefin composite coating, constructing a triple system of "catalytic densification to carbon expansion barrier processing adaptation". With only 12% -28% addition, the material can achieve UL 94 V-0 flame retardant, completely solving the industry problems of "difficult dispersion, poor compatibility, and unstable processing" of traditional APP in thermoplastic materials, and providing a high-performance and production efficient flame retardant solution for the global manufacturing industry.

Core strengths

1. Thermoplastic compatibility innovation with minimal damage to mechanical properties

-Innovative polyolefin chain segment grafting modification technology introduces compatible groups on the surface of APP molecules, which are homologous to thermoplastic substrates. The compatibility with PP, PE, PA and other substrates is improved by 98%, and the dispersion uniformity reaches sub micron level, completely eliminating the white spots and brittleness problems caused by traditional APP products.

-The impact on the mechanical properties of the substrate is minimal: the retention rate of tensile strength of PP material after addition is ≥ 93%, and the retention rate of impact strength is ≥ 91%; The flexural strength retention rate of PA66 material is ≥ 92%, and the elongation at break is ≥ 88%, perfectly balancing the flame retardant effect and usability.

-The powder/particle dual form is suitable for different processing scenarios, with excellent flowability and no equipment blockage caused by adhesion. It can be directly mixed with thermoplastic substrates for injection molding and extrusion without the need for additional dispersants, simplifying the production process.

2. Precise polymerization degree control, dual advantages of thermal stability and processing adaptability

-Using precise temperature control and directional polymerization method, the polymerization degree is stably controlled at n=800-1500, and the thermal decomposition temperature is ≥ 330 ℃, perfectly matching the processing temperature window of 200-320 ℃ for thermoplastic materials. There is no decomposition or gas release during high-temperature processing, which does not affect the quality of product molding.

-The II type high crystalline structure optimized by crystal structure has a solubility of ≤ 0.4g/100mL in water at 20 ℃, excellent water resistance and migration resistance. After being placed in a humid and hot environment at 85 ℃/85% RH for 1000 hours, the flame retardant precipitation rate is ≤ 2%. It is suitable for thermoplastic products used in outdoor and humid environments.

-The melt flow rate is highly matched with the thermoplastic substrate, and the flowability is excellent during blending processing. The filling mold is full, and precision products with thin-walled and complex structures can be produced to meet high-end manufacturing needs.

3. Phosphorus nitrogen synergistic high-efficiency flame retardant, outstanding carbonization barrier performance

-Triple synergistic flame retardant mechanism: When exposed to fire, it releases highly active polyphosphoric acid (acid source), catalyzing rapid dehydration and carbonization of the substrate; The ammonia produced by decomposition dilutes the concentration of combustible gases with water vapor (gas source); Form a dense honeycomb like carbon layer (carbon source) with an expansion ratio of 18-25 times, effectively blocking oxygen heat transfer while suppressing droplet phenomena.

-Low addition amount reduces costs and increases efficiency: Adding 15% to non glass fiber reinforced PP can achieve 1.6mm UL 94 V-0 grade; Adding 20% (15% glass fiber reinforced system) to PA6 can achieve V-0 level flame retardancy, reducing the amount added by 20% -25% compared to traditional flame retardant systems and significantly reducing formulation costs.

-Zero halogen and low smoke environmental attributes: completely free of restricted substances such as halogens, heavy metals, PFAS, etc., no toxic gases such as hydrogen halides and dioxins are released during combustion, smoke density (DS, 4 minutes) ≤ 105, and smoke toxicity reaches the highest safety level of EU EN 13501-1:2024.

Application field

A. Precision electronic, electrical, and home appliance casings

·Ultra thin wall components: used for laptop casings, ultra-thin TV back covers, smartphone frame brackets, etc., can still achieve high flame retardant levels without warping even when the wall thickness is less than 1.2mm.

·High gloss/matte appearance parts: high-end home appliance panels, smart speaker housings, router housings, etc. that require extremely high surface requirements.

B. New energy vehicles and lightweight transportation components

·Precision structural components inside the battery pack: battery module bracket, insulation partition, high-voltage connector housing, requiring high flame retardancy, high mechanical strength, and good dimensional stability.

·Automotive interior functional components: thin-walled and complex air conditioning vents, door panel storage boxes, wire harness fixing buckles, etc.

C. Special cables and pipelines

·Thin walled sheathed cable material: used for robot cables, data cables, etc., requiring excellent surface smoothness, flexibility, and high flame retardancy.

·Small caliber flame-retardant pipeline: used for precision instrument circuit protection sleeve.

D. High end tools and consumer goods

·Electric tool casing: It needs to withstand high impact and have a good appearance.

·High end children's products and sports equipment components: require safety, environmental protection, good tactile sensation, and durability.

If you are looking for thermoplastic ammonium polyphosphate, thermoplastic material specific APP, PP/PA specific flame retardant APP, Taixing will be your best partner, and we will provide the lowest cooperation price!