The flame retardant performance of fire-resistant insulation cushion is one of its core technologies,especially in fields with high safety requirements such as new energy vehicles,energy storage systems,and electronic equipment,where its role is crucial.This type of material combines various high-performance flame retardant and insulation materials,combined with special processing techniques,not only to maintain structural stability in high temperature environments,but also to effectively suppress flame spread in the event of a fire,buying valuable time for personnel evacuation and emergency response.

 

 

　　From the perspective of material composition,fire-resistant insulation cushions usually use phosphorus based,nitrogen based,or boron based flame retardants as the core components.Taking phosphorus based flame retardants as an example,they decompose into substances such as polyphosphate during combustion,catalyze material dehydration and carbonization,form a dense porous carbon layer,isolate oxygen and block heat transfer,thereby inhibiting the continuous combustion reaction.For example,the application of organic phosphorus compounds in epoxy resins can achieve a limit oxygen index(LOI)of 33 and pass UL-94 V-0 flame retardant certification,significantly reducing the heat release rate.In addition,nitrogen based flame retardants dilute the concentration of combustible gases by releasing non combustible gases such as nitrogen and ammonia,further enhancing their flame retardant effect,while borates block flame propagation by forming a glassy protective layer.

 

　　In practical application,the special fire-resistant and heat-insulating cushion for the power battery pack developed by Andi adopts a multi-layer composite structure design,combined with materials such as aerogel and special rubber,which not only has excellent elasticity to absorb the expansion stress during battery charging and discharging,but also achieves dual protection through the synergistic effect of flame retardant in the solid and gas phases.For example,in the event of thermal runaway in a battery,a carbonized layer rapidly forms on the surface of the material,preventing the spread of flames.At the same time,the released inert gas dilutes the oxygen concentration,significantly reducing the risk of fire.Tests have shown that this type of material can maintain structural integrity at high temperatures of 1000℃,with a heat release rate only one tenth of that of ordinary materials,and no melting or dripping phenomenon,meeting strict safety standards in the electronics industry.

 

　　Environmental protection and long-term durability are another important consideration for modern flame retardant materials.Part of the fire-resistant and heat-insulating buffer pads are made of recyclable or biodegradable materials,such as nano-sized magnesium hydroxide and modified rubber,which not only have high flame retardant efficiency,but also reduce environmental pollution during production and use.For example,red phosphorus flame retardants enhance dispersibility through micronization and surface coating techniques,ensuring long-term stability of the material and avoiding migration or performance degradation.

 

　　In extreme scenario verification,the performance of fire-resistant insulation cushion is particularly outstanding.For example,in the case of buffer layer failure in high-voltage cables,the material effectively isolates arcs and partial discharges through a carbonized layer and a glassy protective film,preventing insulation breakdown.Its performance has been widely used in the fields of power and energy.In the future,with the optimization of flame retardant compounding technology(such as phosphorus nitrogen and antimony halogen systems),as well as innovation in nanomaterials and expandable flame retardants,the flame retardant efficiency and applicable scenarios of fire-resistant insulation cushions will be further expanded,providing more reliable guarantees for industrial and civilian safety.