With the rapid development of new energy vehicles, 5G communication, intelligent appliances, and energy storage systems, the market has put forward higher requirements for the performance of thermal conductive flame-retardant plastics. As a mature and widely used engineering plastic, PA (polyamide, especially PA6 and PA66) has become the main substrate for thermal conductive plastics due to its excellent mechanical strength and thermal stability.

However, traditional nylon itself is flammable and prone to melting when exposed to fire. If used for thermal conductive components, electrical parts, or structural components of new energy vehicles, effective flame retardant modification is required. Among various flame retardant schemes, PA thermal conductive plastic specific magnesium hydroxide is becoming an important green additive material in high-performance thermal conductive PA modification systems due to its advantages of high thermal decomposition temperature, low smoke and non toxicity, and good thermal compatibility.

1、 Why is magnesium hydroxide introduced into PA thermal conductive plastics?

In the thermal modification system, the addition of fillers such as alumina, boron nitride, graphite, carbon nanotubes, etc. can improve the thermal conductivity, but cannot solve safety hazards such as poor flame retardancy, high smoke, and toxic gas release. Therefore, halogen-free environmentally friendly flame retardants have become an important direction pursued by the industry.

And our PA thermal conductive plastic uses magnesium hydroxide, designed specifically for thermal conductive nylon systems, with the following key advantages:

✅  High decomposition temperature, resistant to high temperature processing without water separation

The thermal decomposition temperature of magnesium hydroxide is as high as 330 ℃, which is highly compatible with the processing temperature of PA6/PA66 (230-280 ℃), and will not decompose or release water vapor in advance, ensuring stable product forming quality.

✅  Zero halogen environmental protection, non-toxic and low smoke combustion

Unlike halogen flame retardants, magnesium hydroxide only releases water vapor and MgO during combustion, without the release of corrosive smoke or toxic gases. It fully complies with RoHS, REACH, UL environmental regulations and is suitable for export markets and high-end electronic applications.

✅  Collaborative thermal conductive filler dispersion does not affect thermal conductivity

Our magnesium hydroxide products have undergone surface treatment and have good compatibility with PA resin and thermal conductive fillers (such as boron nitride and alumina), without affecting the distribution of thermal conductivity links, effectively achieving dual performance improvement of thermal conductivity and flame retardancy.

✅  Excellent anti drip performance

High purity magnesium hydroxide can significantly enhance the anti drip ability of PA plastics, form a protective ceramic layer under fire conditions, delay flame spread, and improve overall safety level.

2、 Recommended application areas

Magnesium hydroxide for PA thermal conductive plastics is widely used in the following industries:

In the field of new energy vehicles: power battery housing, electronic control housing, charging gun, thermal module materials

5G communication equipment: base station heat dissipation components, optoelectronic connectors, high-frequency insulation structural components

Smart home appliances: thermal conductive lamp holders, LED driver power housings, socket housings, etc

Energy storage systems and industrial automation: modular battery trays, wiring terminals, thermal management packaging components

3、 Customer feedback: Excellent performance data

Performance indicators: without adding magnesium hydroxide, after adding 20% magnesium hydroxide

Vertical Combustion Grade (UL94) HBV-0

High smoke density significantly reduces

Thermal conductivity of 1.5 W/m · K 1.48 W/m · K (basically unchanged)

Tensile strength 70 MPa 65 MPa

Hot deformation temperature (HDT) 170 ℃ 172 ℃

The product not only significantly improves flame retardancy, but also has no significant negative impact on mechanical strength, thermal stability, and thermal conductivity, achieving a "synergistic evolution" of material properties.

4、 Why choose us?

As a professional magnesium hydroxide production enterprise, we offer:

Modified grade magnesium hydroxide products specially customized for PA thermal conductivity system

Formula optimization suggestions and application guidance services

Rapid supply and technical response capability

Compliant with global environmental regulations and suitable for the development of export-oriented materials

We are committed to providing stable, efficient, and environmentally friendly flame retardant solutions for high-performance PA thermal conductive and flame-retardant plastic customers, helping you increase product added value in the fiercely competitive market.

Conclusion: Green flame retardant empowers the upgrade of high-end thermal conductive materials

With the widespread application of thermal conductive polymer materials in industries such as new energy vehicles, 5G, and energy storage, the requirements for flame retardant safety will continue to increase. Magnesium hydroxide for PA thermal conductive plastics is gradually becoming an ideal environmentally friendly flame retardant filler choice due to its excellent comprehensive performance.