Application Introduction of Silicone Rubber Flame Retardants
Silicone rubber, with its excellent high and low temperature resistance, electrical insulation and chemical stability, is widely used in key industries such as aerospace and electronic appliances. However, pure silicone rubber has poor flame retardancy and is prone to burning and spreading under high temperature and open flame, which limits its application in high-end fire prevention scenarios. Silicone rubber flame retardants can be added to the silicone rubber system through physical mixing and chemical modification. Without damaging its original performance, they can effectively inhibit combustion, reduce smoke and toxic gases, significantly improve the fire protection level, and are key additives to expand its application boundaries.
Silicone rubber flame retardants are divided into organic, inorganic and composite types according to their chemical composition, with different mechanisms of action and application scenarios. Inorganic flame retardants (such as aluminum hydroxide and expandable graphite) are environmentally friendly, high temperature resistant and cost-effective, suitable for mid-to-low-end scenarios, and achieve flame retardancy by absorbing heat, releasing non-flammable gases or forming a protective layer; organic flame retardants (such as phosphorus-based and nitrogen-based) have high flame retardant efficiency and good compatibility, suitable for high-end scenarios, and play a role by interrupting the combustion chain reaction; composite flame retardants integrate the advantages of both, synergistically improve flame retardant performance, and are the current mainstream direction.
With the improvement of fire prevention and environmental protection standards in various industries, the application scenarios of silicone rubber flame retardants continue to expand. The core fields are as follows:
The electronic and electrical field is its most widely used scenario. Silicone rubber components (such as seals and cable sheaths) inside electronic and electrical equipment are in high temperature and high pressure working conditions for a long time, which are prone to fire caused by short circuits. After adding flame retardants, the products can reach the UL94 V-0 flame retardant standard, inhibit combustion and reduce smoke, ensure the safe operation of equipment, and are widely used in home appliances, communications, power equipment, etc.
The construction and building materials field is an important application position, especially suitable for places with strict fire prevention requirements such as high-rise buildings. After adding flame retardants, silicone rubber sealants, thermal insulation materials, etc. can meet the Code for Fire Protection Design of Buildings, avoid fire spread through gaps and thermal insulation layer combustion, gain valuable time for personnel evacuation, and environmentally friendly products conform to the trend of green buildings without harm to the environment and human health.
The rapid development of the new energy vehicle industry has promoted the high-end upgrading of silicone rubber flame retardants. Core components such as battery pack seals and high-voltage cable sheaths of new energy vehicles need to have excellent flame retardancy, high and low temperature resistance and aging resistance. Flame-retardant silicone rubber can block heat and flame in the battery pack, ensure the safety of high-voltage circuits, adapt to complex working conditions such as engine compartments, and prevent safety accidents.
High-end fields such as aerospace and rail transit have more stringent requirements on the performance of flame retardants. High-end composite flame retardants can make silicone rubber products maintain stable performance in extreme environments, ensure the reliable operation of equipment, and promote the development of high-end manufacturing industry.
In addition, it is also used in medical, chemical, marine and other fields. Medical silicone rubber adopts environmentally friendly and non-toxic flame retardants, taking into account both flame retardancy and biocompatibility; after adding flame retardants, silicone rubber in chemical and marine fields can improve the fire protection level and adapt to complex working conditions.
At present, high efficiency, environmental protection, compounding and specialization are the core development trends of silicone rubber flame retardants. Jiangxi Dstone DFR-02 silicone rubber flame retardant is a high-quality product conforming to this trend, which can perfectly meet the flame retardant needs of silicone rubber products in various fields.
Jiangxi Dstone DFR-02 is a special high-efficiency and environment-friendly flame retardant for silicone rubber. It is prepared by silicon-phosphorus hybridization and special additive interface treatment process. It is white powder with 99% purity and uniform particle size (D50≤18μm), and has excellent compatibility with various silicone rubber systems. It has significant core advantages: only about 25% addition amount can make the relevant silicone rubber reach UL94 V-0 level, inhibit smoke and toxicity, and meet environmental protection standards; it does not affect the core performance of silicone rubber, is easy to process and does not require equipment modification; the thermal decomposition temperature is 300-320℃, with strong weather resistance and long-term stable flame retardancy.
Jiangxi Dstone DFR-02 can be widely used in silicone rubber products in various fields, solve flame retardant pain points pertinently, take into account safety and economy, and is the preferred additive for flame retardant upgrading. Relying on Jiangxi Dstone's technical accumulation, the product provides professional flame retardant solutions for customers in various industries with stable quality, excellent performance and high cost performance, and helps the industry upgrade.