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Polypropylene Homopolymer (PPH)

Polypropylene homopolymer (PPH) is a thermoplastic polymer produced by the polymerization of propylene monomer. This material is notable for its distinctive properties. It is known for its high strength, low density, chemical resistance, and heat resistance.


Chemical Structure

PPH is a thermoplastic polymer obtained by the polymerization of propylene monomer. During the polymerization process, propylene monomers form chains, resulting in the creation of PPH.

Physical Structure

It is a crystalline polymer and is typically found in the form of white or colorless granules. These granules can be transformed into different forms during the processing stage.

Melting Point

The melting point of polypropylene homopolymer ranges between 160 to 165 degrees Celsius. This is important in determining the processing temperature of the material.


The typical density of PPH is approximately between 0.90 to 0.91 g/cm³. Its low density makes it a lightweight and easily transportable material.

Mechanical Properties

PPH exhibits high strength and durability properties. This makes it a reliable option for many applications.

Chemical Resistance

PPH is resistant to acids, bases, and most solvents. Additionally, it shows resistance to UV radiation.

Thermal Stability

PPH is resistant to high temperatures and is therefore preferred for hot applications.

Electrical Properties

Thanks to its insulation properties, PPH can be used in electrical applications.

Food Safety

PPH is commonly used in the food industry and is suitable for food contact when properly processed.

Environmental Impacts

PPH is a recyclable material, and proper recycling can help reduce environmental impacts.



The production of polypropylene homopolymer involves the polymerization process of a monomer called propylene. This process is a chemical reaction that occurs under high temperature and pressure.

The production process begins with obtaining high-purity propylene gas. This gas can be obtained as a byproduct of crude oil or through the cracking of ethylene with propylene. The polymerization of propylene gas occurs in the presence of a suitable catalyst. The type of catalyst and reaction conditions determine the properties of the product.

The reaction process is carried out under strict control. Parameters such as temperature, pressure, and reaction time are carefully adjusted. Propylene molecules are transformed into polymer chains under the influence of the catalyst. At this stage, the length and branching structure of the polymer chains are determined.

The resulting mixture from the reaction is purified through various processes. This includes the removal of unwanted additives and by products.


Polypropylene is obtained in granule or powder form and is melted through the extrusion process. This molten form is then shaped using various molds or extrusion dies.


Chemical Industry

Chemical tanks, pipelines, storage containers, and other equipment used in chemical processes are made from PPH.

Automotive Industry

Many automotive components such as interior trim parts, upholstery, bumpers, fuel tanks, and exhaust systems are made from PPH.

Packaging Industry

Many packaging materials such as food packaging, beverage bottles, caps, packaging films, and bags are produced using PPH.

Textile Industry

PPH is commonly used in the production of textile materials such as woven and knitted yarns, carpet backings, textile reinforcements, and woven products.

Construction Materials

Pipes, pipe fittings, drainage systems, insulation materials, and various structural elements are produced using PPH.

Electrical and Electronic Industry

Electrical cables and insulation materials are used for housing electronic components.

Medical Material Production

Infusion bottles, surgical instruments, medical devices, and laboratory equipment are produced using PPH.

Food Industry

Food service products such as containers, plates, and cups used in restaurants and fast-food chains are made from PPH.

Home Appliances and Consumer Electronics

PPH is commonly used in white goods, plastic furniture, toys, storage containers, and similar products.

Agricultural and Garden Products

Many agricultural and garden products such as irrigation systems, garden tools, and plastic greenhouses are made from PPH material.

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