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Applications of polyurethane rubber

What is polyurethane rubber?

Polyurethane(pu) is a plastic material, which exists in various forms. It can be tailored to be either rigid or flexible, and is the material of choice for a broad range of end-user applications such as coatings, adhesives, rollers and tyres, composite wood panels, shoe soles, sportswear, insulation of refrigerators and freezers, building insulation, cushioning for furniture, mattresses, car parts etc.


What are the merits of the PU rubber?

Polyurethanes are versatile, modern and safe. They are used in a wide variety of applications to create all manner of consumer and industrial products that play a crucial role in making our lives more convenient, comfortable and environmentally friendly. The excellent qualities of polyurethane make it the superior product it is known for. First off, polyurethane is very abrasion resistant.


How does pu rubber applied in roller industry?

Urethane rollers, also known as polyurethane rollers, are made from a synthetic roller from polyurethane. They are inexpensive to produce, they have many great qualities, including: shock resistance, formability, durability, elasticity and strength. Urethane rollers are best for use in:  packaging and assembling, printing, material handling, measurement systems and other industrial equipment.


Rollers need to be able to operate efficiently in a wide range of processes, but also across diverse environmental factors. Rubber, plastic and polyurethane rollers all offer a good level of resistance to pollutants, chemicals and moisture. Which is why in food manufacturing lines, plastic has largely replaced metal rollers, which can corrode and become unhygienic. However, the choice that can truly ‘roll with the punches’  is polyurethane. Its unique cell structure puts it into top position due to its ability to withstand an incredible amount of wear, tear and weathering. While rubber rollers could potentially warp in extreme heat, or crack and tear in extreme cold, polyurethane alternatives remain unaffected.

Applications of PU Rollers:

1.Paper, film and foil coaters and laminators

2.Tissue and towel embossing lines

3.Corrugated box and folding carton plants

4.Wood and lumber processing lines

6.Steel, aluminum and red-metals processing lines

7.Rotogravure printers

8.Offset printers


Corresponding Names of PU Roller When in Different Industries:

Coater applicator rolls

Gravure impression rolls

Bridle rolls

Pinch & table rolls

Feed & pull rolls

Impression rolls

Embossing rolls

Split nips and scores


Advantages of PU Rollers:

1.Dramatic increase in roll life compared with conventional urethanes and rubber.

2. Deliver a more precise film in certain coating applications.

3. Exceptional cut resistance in harder durometers.

4. Better vibration dampening than other rubbers.

5. Abrasion resistance that exceeds almost all rubber compounds.

6. Folder split nips that outperform other products .


Sourceshttps://www.polyurethanes.org/en/what-is-it/

https://sternrubber.com/blog/many-types-polyurethane

https://www.rubber-rolls.com/#read

https://custompolyurethane.co.uk/polyurethane-rollers-vs-plastic-or-rubber-rollers/

http://www.imperialrubber.com/polyurethane.asp