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Sheets






PP Sheets


Polypropylene

Chemical and physical properties: Most commercial polypropylene is isotactic and has an intermediate level of crystallinity between that of low density polyethylene ( LDPE ) and high density polyethylene ( HDPE ); its Young's modulus is also intermediate. PP is normally tough and flexible, especially when copolymerised with ethylene. This allows polypropylene to be used as an engineering plastic, competing with materials such as ABS. Polypropylene is reasonably economical, and can be made translucent when uncolored but is not as readily made transparent as polystyrene, acrylic or certain other plastics. It is often opaque and/or coloured using pigments. Polypropylene has good resistance to fatigue.

There are three general types of PP: homopolymer , random copolymer and block copolymer . The comonomer used is typically ethylene. Ethylene-propylene rubber or EPDM added to PP homopolymer increases its low temperature impact strength. Randomly polymerized ethylene monomer added to PP homopolymer decreases the polymer crystallinity and makes the polymer more transparent.

Homopolymer: Homopolymer is a high corrosion resistant polypropylene material which exhibits excellent tensile strength and stiffness at elevated temperatures. These polypropylene possess excellent resistance to organic solvents and degreasing agents as well as electrolytic attack..

Compared to low or high density polyethylene, homopolymer has a lower impact strength, but superior working temperature and tensile strength. In addition, polypropylene is light weight, stain resistant and has a low moisture absorption rate.

Copolymer: Is one of the various type of impact copolymers , a rapidly growing segment of the thermoplastic sheet market. The properties can be tailored to meet a wide range of specific end-use application characteristics. Copolymers is formulated to provide high levels of impact resistance as well corrosion resistance against a broad group of reagents, including Organic solvents , degreasing agents and electrolytic solutions. Copolymers is a mid density polypropylene, which retains its high tensile strength at elevated temperatures.

Manufacturing: The large number of end use applications for PP are often possible because of the ability to tailor grades with specific molecular properties and additives during its manufacture. For example, antistatic additives can be added to help PP surfaces resist dust and dirt. Many physical finishing techniques can also be used on PP, such as machining. Surface treatments can be applied to PP parts in order to promote adhesion of printing ink and paints.

APPLICATION: Metal plating Barrels, Tank Covers, Plating Modules, Machined parts, Scrub Station, Scrubbers, Fume Hoods and Ducts, Artificial Limbs, Orthopaedic Appliances, Battery cases, Cutting Boards, Radio and television equipments. Acid tank lining, laboratory sinks, etching machine, etching rinse tubs. .

Thickness: 0.2 mm to 30 mm Width Maximum 1500 mm , Extruded.
30 mm to 150 mm Width Maximum 1000 mm. Compressed.

Colours : Standard Natural, Milky White, Grey, Simona Grey, Other colours can be supplied on Request.

Special Features : Conductive PP


PPGL Sheets


It is a Polypropylene sheet laminated with glass woven fabric. This inline bonding due to lamination process gives the sheet optimum bond strength. The glass fabric provides the base for subsequent application of glass fibre or glass matting impregnated with polyester resin coats. This composites provides enhanced product performance with respect to mechanical and high temperature resistance properties.

Available thicknesses (mm) : 2.0, 2.75, 3.0,4.0 and 5.0 in roll form.
                                                 6.0,8.0,10.0,12.0 are available in sheet form.

Width : 1.5 mtrs

Application : Chemical Industries, Storage Tanks for acids and alkalies, Vessels, Pipings, Scrubbers, Blowers, Ducting and industrial flooring liners in Chemical Industry, Pharmaceuticals, Steel etc.

 
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