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What is PBO

 
 

PBO stands for Polybenzobisoxazole, a synthetic polymer invented by SRI International and is currently manufactured by Toyobo Corporation in Japan. The trademark name for PBO is Zylon. Zylon is 1.6 times stronger than Kevlar and can also withstand higher temperatures.

 

Technical Data of PBO
 
Tenacity : 37cN/dtex
Elongation : 3.5%-2.5%(HM)
Modulus : 1150cN/dtex (AS) - 1720cN/tex (HM)
Degradation temperature : 650°C
Density : 1.54g/cm3 (AS)-1.56g/cm3 (HM)
Color: yellow-orange

 

Applications of PBO

 
 
PBO has the highest performances to high temperatures and high mechanical stress, but it’s expensive. So PBO is generally used in advanced and demanding environments.
 
Industry: glassware, filtration, conveyor belts, sewing thread, welding or foundry protection, joints, etc.
Construction: concrete reinforcements
Safety: firefighter's protective equipment, anti-cutting gloves, ballistic protection, etc.
Transport: tyres, various types of sheathing...

 

 

PBO in Aluminium Profile Extrusion Industry

 

 

PBO felt belts are widely used in the aluminum extrusion industry. 

For aluminum extrusion, 

PBO usually can withstand temperatures up to 1200℉/600℃.

  How PBO Felt Belts are Made

 

  Specifications of PBO Felt Belt

 

Type: Belt-PKN

Color: Brown+Yellow 600°

Composition: PBO+Kevlar+One layor Nomex tension menber PBO Kevlar+Nomex

Available size

Width: 20-1500mm

Lenght: 1700-11000mm

Thichness: 8,10,12mm

  Application of PBO Felt Belt

 

After being extruded, the profile falls into rollers that convey it further down the line. The first rollers have to hold the most amount of heat, so we use PBO.

 

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