PP Flame Retardant

PP flame retardants are widely used in fields such as automotive, electronics, and building materials, and upgrading their flame retardant performance has become a core requirement for products to break through international market barriers. Traditional flame retardants have pain points such as poor compatibility with PP, significant loss of mechanical properties, and insufficient compliance. Our developed polypropylene flame retardants cover three categories: halogen based, halogen-free, and masterbatch. Through targeted modification and synergistic system optimization, we achieve the triple goal of "flame retardant efficiency, non-destructive performance, and global compliance", fully matching the processing and application needs of various substrates such as homopolymer PP, copolymer PP, and high impact PP, helping our customers' products seize the global high-end market.

Core strengths

1. Dual series formula coverage to meet diverse flame retardant needs

Product type Core components Flame retardant grade (1.6mm PP) Core advantages Applicable scenarios

Halogen based high-efficiency DBDPE+antimony trioxide UL 94 V-0 with low addition (15% -20%), high flame retardant efficiency, good mechanical performance retention, electronic shell, automotive interior

Zero halogen environmentally friendly phosphorus nitrogen synergistic effect+nano magnesium hydroxide UL 94 V-0 zero halogen low smoke, no toxic gas release, compliant with green certification for building pipes, food contact grade products

High concentration masterbatch flame retardant ingredient content 60% -80% UL 94 V-0 dust-free feeding, uniform dispersion, high processing efficiency, large-scale production of PP products

2. Directional interface modification, ultimate compatibility with PP substrate

-The halogenated version adopts PP-g-MAH graft coating technology to construct an affinity layer on the surface of flame retardant particles that matches the PP molecular chain. The interface compatibility is improved by 60%, completely solving the problem of white spots and rough spots caused by uneven dispersion in the product. The surface smoothness can reach mirror level.

-The halogen-free model is equipped with a double-layer modification process of silane coupling agent, with an average particle size precisely controlled at 2.0-2.5 μ m. It is tightly bonded to the PP matrix without the need for additional dispersants and can be processed directly by melt blending. The equipment cleaning cycle is extended by 2 times.

-The masterbatch adopts PP homologous carrier resin, with particle size of 2-3mm, consistent with the shape of PP resin. The automated production line feeding has no bridging or dust, and the measurement accuracy is improved to ± 0.2%.

3. Low addition, high flame retardancy, and minimal loss of mechanical properties

-Halogen based products only require 15% -20% addition to meet UL 94 V-0 flame retardant standards, with a limit oxygen index (LOI) of ≥ 34%, a tensile strength retention rate of ≥ 95%, and a notch impact strength retention rate of ≥ 92%, perfectly balancing flame retardancy and toughness.

-Adding 25% -30% halogen-free products can achieve V-0 flame retardancy, LOI≥33%， Water absorption rate ≤ 0.5%, excellent weather resistance. After 1000 hours of xenon lamp aging test, the retention rate of flame retardancy and mechanical properties is ≥ 90%.

-The processing temperature window of the entire series of products is 180-240 ℃, which is precisely matched with the processing temperature of various PP substrates. High temperature processing has no decomposition, yellowing, or gas release, avoiding product bubbles and warping defects.

Application scenarios

PP components in the automotive industry

-Application: bumper frame, dashboard, battery casing, high-voltage wire harness sheath

-Recommended formula: High impact PP 78%+Halogen efficient version 20%+Antioxidant 2%

-Advantages: Low additive content ensures lightweight design, notch impact strength ≥ 6.0kJ/m ², meets FMVSS 302 automotive interior flame retardant standards, VOC emissions meet standards

Electronic and electrical PP shell

-Application: 5G base station casing, router casing, power adapter, junction box

-Recommended formula: 80% homopolymer PP+20% halogenated high-efficiency version

-Advantages: The surface of the product is smooth and traceless, the flame retardant performance is stable up to UL 94 V-0 level, and the temperature resistance is suitable for long-term operation of electronic devices

Building materials PP pipes/sheets

-Application: PP-R water supply pipe, flame retardant ventilation duct, building formwork

-Recommended formula: 70% homopolymer PP+30% halogen-free environmentally friendly version

-Advantages: Zero halogen environmental protection meets the B1 level requirements of the EU CPR building regulations, is resistant to acid and alkali corrosion, and has a low water absorption rate to ensure long-term stability during use

If you are looking for PP flame retardants, Taixing will be your best partner and we will offer the lowest price cooperation!