The application prospects of magnesium hydroxide in rubber products are broad
As a halogen-free and environmentally friendly multifunctional material, magnesium hydroxide not only effectively improves the safety performance of rubber products, but also has multiple functions such as filling and thermal stability. It has shown wide application potential in products such as tires, hoses, tapes, and seals.
It is a white powdery inorganic compound with good chemical stability, thermal decomposition performance, and low wear value. Its most significant feature is that it absorbs heat and releases water vapor during the heating process:
Mg(OH)₂ → MgO + H₂O↑
This process not only effectively reduces the temperature in the combustion zone, but also dilutes the concentration of combustible gases, thereby achieving efficient physical flame retardant effects. In addition, magnesium hydroxide does not contain halogen elements and does not produce toxic gases or thick smoke during combustion, making it an ideal choice to ｒｅｐｌａｃｅ traditional halogen flame retardants.
1. Efficient flame retardant, meeting high safety requirements
Fire safety is crucial in rubber products, especially in rubber hoses, tapes, and cable sheath materials used in fields such as electricity, transportation, and construction. Magnesium hydroxide, through its own thermal decomposition reaction and carbonization effect, can quickly respond in the early stages of a fire, suppress flame spread, and improve the fire resistance limit of the material.
Compared to traditional halogenated flame retardants, magnesium hydroxide is not only more environmentally friendly, but also produces almost no black smoke and harmful gases during combustion, improving the safety conditions for personnel evacuation.
2. Good filling performance and optimized cost structure
Magnesium hydroxide can not only be used as a flame retardant, but also as a functional filler added to rubber formulations. Moderate addition can improve the hardness, wear resistance, and dimensional stability of rubber, while reducing production costs.
Especially in products such as tape and conveyor belts that require high strength and durability, the addition of magnesium hydroxide helps to enhance surface performance and extend service life.
3. Improve thermal stability and delay material aging
Rubber materials are prone to aging and performance degradation due to factors such as high temperature and ultraviolet radiation during long-term use. Magnesium hydroxide has good heat absorption ability, which can alleviate the thermal degradation process of rubber substrates to a certain extent, improve the heat resistance and service life of products.
Magnesium hydroxide also has good dispersibility and flowability, making it easy to mix uniformly in open or internal mixers. The surface modified magnesium hydroxide product can further enhance its compatibility with the rubber matrix and reduce performance defects caused by agglomeration.
In addition, its lower wear value reduces equipment wear, which is beneficial for extending the service life of production equipment and improving production efficiency.
With the increasingly strict environmental regulations of the country and the growing concern of end users for product safety performance, hydrogen and oxygen
Especially in the fields of wire harness wrapping for new energy vehicles, fire-resistant rubber hoses for rail transit, and fireproof sealing for intelligent buildings, the application of magnesium hydroxide has gradually shifted from an auxiliary role to a key functional material.
For rubber product manufacturing enterprises, a deep understanding of the performance characteristics of magnesium hydroxide and its scientific integration into product formulas and process flows will be the key to winning market competition and meeting customer needs. With the advancement of technology and the growth of market demand, the application prospects of magnesium hydroxide in the future rubber industry will be even broader.