ZB Flame Retardant

ZB flame retardant - halogen-free synergistic flame retardant core additive, the product is a white odorless crystalline powder with stable chemical properties. Its compatibility with polymer materials such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), epoxy resin, unsaturated polyester, etc. is significantly improved. It is the best choice to replace halogen flame retardants and reduce material flame retardant costs.

Core strengths

1. Molecular level dispersion and anchoring

The active functional groups on the surface of the product (such as epoxy, vinyl, amino) can undergo chemical reactions with the end groups, side chains, or unsaturated bonds of the polymer at the melting processing temperature of the resin. This process transforms traditional "particle fillers" into crosslinking points or side linking branches of polymers, achieving true molecular level uniform dispersion and permanent anchoring, completely eliminating migration and precipitation.

2. Build a "sacrificial" cross-linked network

At room temperature, the chemical bond network formed endows the material with excellent mechanical strength and dimensional stability. When exposed to high temperatures in a fire, these specifically designed chemical bonds can preferentially and controllably break. This process absorbs a large amount of heat while releasing active zinc/boron species that catalyze the formation of carbon, and constructs a dense and continuous expanded ceramic carbon layer in situ on the material surface, with a much higher barrier efficiency than physical mixed systems.

3. Performance synergy rather than performance compromise

Due to the fact that flame retardant units have become a part of the polymer network, their negative impact on the material is minimized. Compared to traditional additive ZB

·Significantly improving mechanical performance: As a nanoscale crosslinking point, it can simultaneously enhance the modulus, toughness, and fatigue resistance of materials.

·Maintain excellent electrical performance: no interface defects and free ions, significantly better volume resistivity and dielectric strength than traditional filling systems.

·Improve processing and surface properties: eliminate rheological problems caused by filler agglomeration, and endow products with better surface smoothness.

Application scenarios

1. High end electronic packaging and insulation materials

Epoxy encapsulation materials require high flame retardancy (UL94 V-0), high thermal conductivity, low stress, and extremely low ion impurities.

2. Fiber reinforced composite materials

Carbon fiber/glass fiber composite materials used in aviation and rail transit must meet strict flame retardant standards (such as FAR 25.853) and must not sacrifice lightweight and mechanical properties.

3. High performance special wires and cables

Special equipment cables require flame retardancy, cutting resistance, repeated bending resistance, and stable signal transmission.

4. Transparent or high appearance required products

Transparent PC, PMMA or high gloss surface products require flame retardancy, but cannot tolerate increased haze or surface defects.

5. Wire and cable industry

As a flame retardant and smoke suppressant additive for sheath and insulation materials, it enhances the flame retardant level and aging resistance of cables, meeting the safety requirements of scenarios such as rail transit and building wiring.

6. Plastic building materials field

It is used for PVC pipes, PP/PE insulation boards, fire foam and other products to endow the materials with excellent flame retardancy and weather resistance and meet the acceptance standards for building fire protection.

Frequently Asked Questions

Q: Is reactive ZB flame retardant more complex in processing technology than traditional ZB?

A: On the contrary, it is more simplified in most cases. For thermosetting resins (such as epoxy resins), they can be directly added as reactive monomers to existing formulations without changing the curing process. For thermoplastic, it usually reacts with the polymer in the melting section of the screw to complete the modification in one step. It eliminates the complex surface treatment and high shear mixing steps required by traditional fillers to improve dispersion, and solves the problem of increased melt viscosity caused by fillers. The processing window is wider and the process is more stable.

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