Pre‑oxidized Fiber Protective Thermal Insulation Suit – Emergency Gear for Resisting High‑Intensity Thermal Radiation

The material used for pre‑oxidized fiber protective thermal insulation suits is pre‑oxidized polyacrylonitrile fiber, which inherently possesses strong fire resistance. When exposed to fire, it does not burn or melt and drip like ordinary clothing; it is an environmentally friendly, durable, high‑performance personal protective equipment.

The specifications for Kaidun New Materials’ pre‑oxidized fiber protective thermal insulation suit are as follows: shoulder width 53 cm, body length 130 cm (standard model) or 160 cm (extended model), and sleeve length 65 cm.

Characteristics of Pre-Oxidized Carbon Fiber Protective Thermal Insulation Clothing:

1. Long‑lasting flame retardancy and high‑temperature resistance
The limiting oxygen index of preoxidized carbon fiber typically ranges as high as 40%–55%, but since the oxygen concentration in air is only about 21%, it is actually quite difficult to ignite in ordinary atmospheric conditions. When exposed to open flames or extremely high temperatures—such as brief contact with flames exceeding 800°C—the fibers do not soften or melt; instead, they rapidly carbonize and expand, forming a dense, porous carbon layer. This carbonized layer acts like “armor,” effectively preventing external heat from continuing to penetrate inward and protecting both the internal fabric and the wearer’s skin. It can maintain stable performance over an extended period in environments ranging from 250 to 300°C, far surpassing most conventional flame‑retardant fibers.

2. Excellent thermal protection and safety features
In high‑temperature or flame‑filled environments, pre‑oxidized fiber demonstrates exceptional safety. First, it does not produce molten droplets, thereby reducing the risk of severe burns caused by high‑temperature molten material adhering to the skin. Second, during decomposition, it generates minimal smoke and does not release highly toxic gases. In a fire, toxic fumes are a more lethal threat than the flames themselves; this characteristic of pre‑oxidized fiber buys crucial “safety window” time for personnel to escape.

3. Excellent comprehensive physical and chemical properties
Pre‑oxidized acrylic fibers inherit some of the advantages of acrylic fibers while being further strengthened through oxidation. They exhibit high tensile strength and a degree of flexibility, meeting the durability requirements for apparel fabrics. At the same time, they possess excellent chemical resistance, offering good resilience against most acids, alkalis, and organic solvents, making them well suited for complex industrial environments. In addition, they serve as outstanding electrical insulating materials, providing extra protection for professionals in the power industry.

4. The clothing is comfortable.
Pre‑oxidized fiber protective insulation suits exhibit excellent softness and drape, offering high wearing comfort. Pre‑oxidized fiber nonwoven fabric is skin‑friendly, soft to the touch, and not rough, making it easy to fold—resulting in garments that provide overall superior comfort.

5. The overall clothing design is excellent.

The sewing threads used in the pre‑oxidized fiber protective thermal insulation suit are highly strong and heat‑resistant, minimizing the risk of seam failure and subsequent protective garment degradation caused by flame exposure in high‑temperature environments. The reflective warning strips are strategically placed for maximum visibility and effective signaling; they are fitted on both arms and feature two reflective warning strips on the back of the garment. The Velcro‑fastened front placket ensures quick and easy donning in emergency situations. The garment’s loose, roomy design is suitable for a wide range of body types and age groups, with ample safety margin for expansion.

Thanks to its inherently flame‑retardant fibers and its safe, non‑melting, non‑dripping properties when exposed to fire, pre‑oxidized fiber fire‑resistant suits play a crucial role in numerous high‑risk environments. Whether it’s firefighters battling raging flames, workers laboring near molten steel splashing from furnaces, or ordinary citizens seeking emergency refuge, these suits can be deployed with flexibility to keep extreme heat and flames at bay.

Applications of Pre-Oxidized Carbon Fiber Protective Thermal Insulation Suits:

1. Professional Firefighting and Emergency Rescue

In professional firefighter fire‑resistance suits, pre‑oxidized fiber is primarily used as a thermal insulation layer (also known as a comfort layer). Situated between the outer flame‑retardant fabric and the inner comfort lining, its core function is to actively create a thermal barrier under high‑temperature fire conditions by carbonizing and expanding, thereby preventing heat from being transferred to the human body. It is a critical barrier material that ensures firefighters can survive and operate effectively in extreme environments.

2. Industrial Thermal Protection Field

In the metallurgy and forging industries, workers often perform operations, inspections, and sampling tasks in front of steelmaking furnaces. Wearing pre‑oxidized fiber thermal protective suits can withstand heat radiation up to 1000°C, significantly reducing burn injuries caused by splashes of high‑temperature molten steel or molten iron.

In the glass manufacturing industry, workers need to operate close to glass melting furnaces. Wearing pre‑oxidized fiber protective insulation suits can efficiently reflect and block the continuous, stable, high‑intensity thermal radiation emitted by the furnaces.

In the petrochemical industry, workers often need to carry out emergency repairs, valve operations, and leak management near reaction vessels, cracking furnaces, and high‑temperature steam pipelines. Wearing pre‑oxidized fiber thermal protective suits can shield against radiant heat and brief flame contact, giving rescue personnel crucial time to act. Set the time.

3. Thermal Protection for Military and Specialized Industries

Modern battlefields and specialized operational environments—such as those involving armored troops, pilots, and petrochemical emergency response—place extremely high demands on clothing in terms of flame retardancy, thermal insulation, and protection against flash fires and explosions. Due to its lightweight design and reliable protective performance, pre‑oxidized fiber has become a key material choice for high‑end protective gear like special operations uniforms, flight suits, and armored corps one‑piece combat suits.

4. Emergency Evacuation and Public Safety Products

Public‑oriented fire escape blankets, escape cloaks, emergency tents, and other products widely utilize pre‑oxidized fibers or fiber blends. When a fire first breaks out, these products can be quickly donned to provide individuals with brief yet critical protection during evacuation, preventing flames from directly scorching the skin and igniting clothing.

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86-131-3828-6677

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Room 401, Building 21, No. 1, Keqing Road, Yundonghai Street, Sanshui District, Foshan City, Guangdong Province