PBO fiber

Name: PBO fiber
Brand: shenghetech.com
SKU: SHPB-005
Availability: InStock
Rating: 5 (1 reviews)

No.SHPB-005

Material: 100% pbo fiber

Property: LOI＞68, high temperature resistance up to 650 ℃， excellent strength & modulus, good flame resistance, excellent thermal stability, excellent creep resistance, good chemical resistance. Applications： Radomes, rubber reinforcements, high-temperature-resistant protective clothing. After the fiber surface is fibrillated, the adhesion in the cement medium is enhanced. It is an ideal reinforcing material for buildings such as houses and bridges. Special optical cable field as reinforcing core， high-temperature-resistant yarn, fireproof fabric for firefighting clothing, and high-temperature-resistant furnace clothes. Fire-resistant gloves, high-temperature resistant filter felt, heat insulation felt, sewing threads, Machine protective cover, heat shield, thermal shields, high-strength ropes, lifting ropes, cables.

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Description

What is PBO staple fiber?

PBO (Zylon), the Chinese name is polyparaphenylenebenzoxazole, PBO is a unique conjugated rigid rod-shaped molecule in structure.The molecular structure is highly symmetrical, which gives PBO fiber excellent mechanical and thermal properties. The tensile strength reaches 5.8GPa, the thermal decomposition temperature is 650°C, and the limiting oxygen index is greater than 68%. Due to its unique molecular structure and special manufacturing process, pbo fiber has the characteristics of ultra-high strength, ultra-high modulus, high temperature resistance and high thermal environment stability. It has excellent overall performance and is known as the 21st century super fiber. The application fields of PBO staple fiber are mainly in the civilian field, such as: heat-resistant felt, protective clothing yarn, protective clothing for fire protection and high-temperature furnaces, high-temperature heat-resistant filter felt. According to the different production processes and product uses of pbo staple fiber, we divide it into three types of fibers: SHCG-PBO-HS (high-strength type), SHCG-PBO-HM (high modulus) and SHCG-PBO-NR (heat-resistant type).

The following is the parameter list of these three types of pbo staple fibers

Items	Units	SHCG-PBO-HM	SHCG-PBO-HS-1	SHCG-PBO-HS-2	SHCG-PBO-NR
Density	g/cm³	1.56±0.01	1.54±0.01	1.54±0.01	1.54±0.01
Single fiber diameter	μm	11-14	11-14	11-14	11-18
Tensile strength (dry yarn)	cN/dt	27.5-35	33-38	30-33	<30
Tensile strength (impregnated wire)	Gpa	≥5.5	≥5.8	≥5.0	--
Tensile modulus (dry yarn)	cN/dt	1200-1500	850-1100	750-1000	--
Tensile modulus (impregnated wire)	Gpa	210-280	155-180	140-180	--
Elongation at break	%	2.0-3.0	3.0-5.0	3.0-5.0	--
Moisture regain	%	0.6	2	2	2
Decomposition temperature (N₂)	℃	650	650	650	650
LOI (limiting oxygen index)	%	68	68	68	68

Property of PBO staple fiber

Excellent strength & modulus
Good flame resistance
Excellent thermal stability
Excellent creep resistance
Good chemical resistance

Disadvantages of PBO staple fiber

Very poor UV resistance
Poor compressive strength
Strength loss in exposure to strong acids

Excellent heat resistance and flame retardancy. Ordinary fibers will decompose in high temperature environments, while PBO fibers can resist decomposition even in extremely high temperature environments (650°C). PBO fiber maintains high durability at 500°C. The durability, heat resistance and elastic modulus of PBO fiber are quite strong, which is the highest among organic fiber products on the market.

What are the applications of PBO staple fiber ?

PBO staple fiber is used to make high-temperature-resistant yarn, and pbo staple fiber yarn is woven into cloth and used to make fire-fighting clothing, fire-proof clothing, and high-temperature -resistant furnace front clothing. The excellent flame-retardant properties of pbo fiber make firefighting clothing and safety protective clothing very useful for rescue workers who jump into fire scenes without worrying about being burned.
PBO staple fiber is used to make heat-resistant felt, fire-proof felt, fire-proof non-woven fabric, high-temperature resistant filter felt, heat insulation felt Mainly used for coal-fired power plants, waste incinerators, or cement plants, PBO fibres are used to filter hot gases. In this application, a PBO needle felt separates dust and particulate matter from the exhaust gas.
Machine protective cover, heat shield for example, in mechanical terms, metals get very hot when welded. Since most robots are made of metal or resin, it's common for them to melt from the heat during the welding process if they are not use protective cover. Therefore, by covering the robot with fabric made by PBO fabirc as a protective cover, the robot becomes very durable.
Fire-resistant gloves, flame-retardant and high-temperature resistant gloves fire-resistant gloves made of PBO staple fiber yarn have very good flexibility and heat resistance.
High-strength ropes, lifting ropes, cables.
Ropes, sewing threads, woven fabrics, and weftless fabrics.