Zinc Borate Fine Powder

Taixing is a supplier of zinc borate fine powder, this product is precisely controlled by professional innovative technology to achieve sub micron to micron fineness of zinc borate particles and achieve extremely narrow particle size distribution (PSD). Developed specifically for applications with extreme requirements for surface quality, mechanical performance retention, and dispersion uniformity in polymer matrices, it is a key material for achieving "seamless" flame retardant upgrades in high-end films, ultra-thin wall electronic components, high gloss coatings, and fiber-reinforced composite materials.

Core strengths

·Extraordinary dispersion and interface fusion: submicron particle size (D50 as low as 0.8 µ m) and optimized surface energy achieve near molecular level mixing with polymer matrix, eliminating stress concentration points caused by "aggregates".

·Guarding the surface aesthetics and feel of products: The extremely fine particles hardly affect the surface smoothness, glossiness, and tactile sensation of the products.

·Mechanical performance retention: The influence on the tensile, impact strength, and toughness of the matrix resin is minimized, especially in thin-walled and fiber-reinforced systems where it performs outstandingly.

·Low dosage and efficient flame retardant: Excellent dispersibility allows the flame retardant active ingredients to more fully contact the flame front, improving flame retardant efficiency.

Mechanism of action

1. Eliminating defects: shifting the role from "foreign objects" to "components"

Traditional powders are prone to forming "defect cores" during processing due to uneven particle size and agglomeration. The ZB-MF series has achieved three major transformations through precise form control:

·Rheological optimization: Spheroidization and narrow distribution of particles like "micro bearings" improve melt flow, reduce extruder torque, increase injection filling speed, especially for thin-walled molding.

·Homogenization of stress field: Ultra fine and uniformly dispersed particles avoid local stress concentration, which is the key to maintaining and improving the impact toughness of composite materials.

2. "Surface engineering" to enhance flame retardant efficiency

A huge specific surface area means more surface active sites:

·Accelerated reaction kinetics: In a fire, fine powder can react more quickly with the combustible gases and free radicals produced by decomposition, shortening the flame retardant response time.

·Forming a denser protective layer: Fine particles can accumulate more tightly during the carbonization process, forming an expanded carbon layer with smaller pores and better insulation effect.

3. Deep compatibility brought by surface modification

Exclusive surface treatment is not simply a "coating", but a "bridge" built between inorganic powders and organic polymers through chemical bonding, significantly improving:

·Moisture absorption: Reduce the moisture absorption tendency of the powder itself and ensure processing stability.

·Dispersion stability: prevents secondary agglomeration during storage and processing.

·Interface stress transfer: Effectively transfer external forces from the flexible polymer matrix to the rigid powder, improving the overall modulus and strength.

Application field

Thin films, thin walls, and high gloss products

·Flame retardant polymer film: used for lithium battery packaging aluminum-plastic film, special industrial film, decorative film. Require no impact on the transmittance, haze, heat sealing strength, and flexibility of the film.

·Ultra thin wall electronic connectors: made of materials such as LCP and PBT, with a wall thickness of less than 0.25mm. Fine powder is the key to ensuring flow filling and maintaining dimensional accuracy.

·High gloss non spray appearance parts: automotive interior parts, high-end home appliance shells, require Class A surface, no floating fibers, no flow marks.

Fiber reinforced composite materials and elastomers

·Long glass fiber/carbon fiber reinforced plastic: Fine powder can better embed into the fiber skeleton, reducing interference with fiber infiltration and orientation.

·Special rubber and seals: provide flame retardancy in silicone rubber and EPDM without compromising their high elasticity and compression set performance.

If you are looking for a manufacturer of zinc borate fine powder, Taixing will be your best choice. Enjoy drinking anytime to discuss cooperation.