Plastic products -PP, PE,PVC & PU

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Plastic products -PP, PE,PVC & PU

PVC and polyurethane are thermoplastic materials that can be formed into a variety of shapes, including tubing and reinforced hose. Both materials are useful in numerous applications. But depending on factors such as temperature, chemical compatibility and plasticizer use, one product may perform better than the other in a particular application. This article examines each material’s benefits, drawbacks, and common uses as they pertain to products that are generally available for variety of industries.

 

PVC products

PVC or polyvinyl chloride is a thermoplastic polymer made by the polymerization of vinyl chloride. It is usually plasticized and has a wide variety of uses from coating electrical wires to siding. It is inexpensive and flame retardant although it gives of hazardous smoke.

PU (Polyurethane) products

 Polyurethane is formed from reacting a diisocyanate with polyols typically polyether or polyester polyol, although there are many others such as polybutadiene and soy or castor based polyols. It is also used in a wide variety of applications from soft elastomers to viscoelastic foams and rigid foams to very hard elastomers. It is much more expensive than PVC, but can be tailored to almost any application. Most polyurethanes burn readily, but fire retardants can be added.

The difference between PU and PVC

 PU will take black smoke,  while burning but  the PVC just green smoke .PU is more expensive than PVC 

A thermoplastic is a material, usually a plastic polymer, which becomes soft when heated and hard when cooled. Thermoplastic materials can be cooled and heated several times without any change in their chemistry or mechanical properties. When thermoplastics are heated, they melt to a liquid

 

Materials used for,Cost ,Measurement,Specification (Weight/m,diameter and spacing of  bars),Size or weight /bundle/unit,labour for installation,installation charge,Other accessories(fencing post,frame work),lmanufactures,Retail oiut let

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