Non Volatile Zinc Borate

Non volatile zinc borate is a white odorless crystalline powder that is a stable halogen-free flame retardant core additive for high-temperature processing. It is widely used in precision optics, semiconductor packaging, automotive electronics, and other fields, achieving a breakthrough performance of nearly zero mass loss (<0.1%, 400 ° C) and no detectable VOC release in extremely harsh environments (high vacuum, long-term high temperature, strong chemical contact). This is not only a flame retardant, but also a fundamental material solution to ensure the purity, electrical stability, and optical transparency of high-end products throughout their entire lifecycle.

Core strengths

1. Intrinsic structure purification technology

We have abandoned the traditional aqueous synthesis route and adopted high-temperature solid-phase reaction and gas-phase purification processes to eliminate impurities such as organic amines and chloride ions from the source. The obtained product is a nearly theoretical stoichiometric zinc borate crystal with extremely low lattice defect density, fundamentally eliminating the decomposition and volatilization phenomena caused by structural instability.

2. Surface atomic layer passivation

Drawing on advanced semiconductor technology, we have constructed a uniform and dense layer of inorganic oxide atoms on the surface of each particle. This coating is not simply a physical coating, but is chemically bonded to the core zinc borate to form a thermodynamically stable "core-shell integrated" structure. This structure can effectively seal the surface active sites, block adverse interactions with small molecules in the polymer matrix or environment, and significantly enhance their chemical inertness in the melt.

3. Ultra low extractables design

By precisely controlling the hydration degree and surface acidity (pH neutrality) of the product, the extractable content in polar solvents (such as water, alcohols) and oils is less than 50 ppm. This characteristic is crucial for medical devices that come into contact with the human body, food packaging that comes into contact with food, or automotive components that are exposed to oil for a long time.

Application scenarios

1. Optics and Display Industry

It can perfectly match the refractive index of PC/PMMA/optical silicone, and its non volatility ensures that after high temperature and humidity (double 85 test) and UV aging, the transmittance retention rate is>95%, and the YI value change is<2.

2. New energy vehicles and high-end electrical

As an efficient smoke suppression synergist, it is used for halogen-free flame-retardant polyolefin cable materials. Its zero precipitation characteristics ensure that the volume resistivity does not decay after long-term thermal aging at 150 ° C, and it has passed long-term corona resistance tests for more than 2000 hours.

3. High end electronic packaging and semiconductor auxiliary materials

The extremely low ion content and extractables make it an ideal synergistic flame retardant choice for epoxy molding compounds (EMC) and bottom filling adhesives, which can significantly improve the MSL level and THB reliability of the product.

4. Special industries and aerospace

Ultra low gas release characteristics, compliant with ECSS-Q-ST-70-02C standard, suitable for satellite internal components, vacuum pipeline components, etc.

5. Engineering plastics industry

Used for high-temperature processing of engineering plastics such as nylon (PA6/PA66), polycarbonate (PC), and polyoxymethylene (POM), to enhance the flame retardancy and mechanical strength of products, and meet the application needs of high-end products such as automotive parts and electronic and electrical casings.

6. In the field of wires and cables

As a flame retardant additive for high-temperature resistant cable insulation and sheath materials, it is suitable for the high-temperature environment of cable extrusion process, ensuring that the cable has no flame retardant migration or performance degradation during long-term use, and meets the safety standards of special scenarios such as rail transit and aerospace.

7. Composite materials field

Added to glass fiber reinforced plastic (FRP) and carbon fiber composite materials, it endows the materials with excellent flame retardancy and weather resistance, and is widely used in fields such as wind turbine blades, ship components, and building structural components.

Frequently Asked Questions

Q: How to quantify 'non-volatile'? What is the essential difference between "low moisture" products and simple ones?

A: "Non volatile" is a systematic performance statement that we quantify through "full spectrum gas emission analysis". Use a thermogravimetric mass spectrometer to monitor all gas molecules (such as H ₂ O, CO ₂, small molecule hydrocarbons) released throughout the entire process from room temperature to 500 ° C. However, "low moisture" products only solve the problem of water, but may contain a large amount of organic impurities that evaporate at 200-350 ° C. The essential difference lies in "intrinsic purity" vs. "post-treatment drying".

Q: How to ensure non volatility in the processing of engineering plastics at extreme high temperatures (such as above 300 ℃)?

A: This depends on our surface atomic layer passivation technology and crystal stability. The passivation layer itself is a high-temperature oxide and structurally stable at 300 ℃. More importantly, it seals the active sites on the surface of zinc borate particles that catalyze polymer decomposition, thereby blocking the chain reaction of volatile small molecules generated by catalytic degradation. Therefore, its non volatility not only refers to its own non volatility, but also includes the ability to inhibit the production of volatile compounds in the system.

If you are looking for non-volatile zinc borate, zero precipitation zinc borate, ultra-high purity zinc borate, optical grade flame retardants, electronic grade zinc borate, and high-temperature stable zinc borate flame retardants, Taixing will be your best choice and we will offer the most favorable cooperation price.