PP Homopolymer P904J (Injection) - Thailand


:   Poly(1-methylethylene)

Cas Number

:   9003-07-0

HS Code

:   390210




Basic Info

Appearance Name

:   White Granular Powder

Common Names

:   Propene Polymers, Propylene Polymers, IPP


: 25 Kg Bag

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Technical Document

Brief Overview

Made from a single monomer, propylene, polypropylene homopolymer exhibits significant crystallinity and isotactic structure, which denotes a regular and systematic arrangement of molecular chains. This produces a material with excellent electrical insulation qualities, good chemical resistance, and remarkable stiffness. Because polypropylene homopolymer has a high melting point, it is frequently processed using methods like injection molding or extrusion to create products like pipes, sheets, and packaging. Because of its superior mechanical and thermal properties, it is a preferred choice in a number of industries, including consumer goods, construction, and automotive.

Manufacturing Process

Polypropylene homopolymer is created by polymerizing propylene monomer at a specific pressure and temperature. The process usually consists of the following phases:

  1. Propylene Polymerization: A Ziegler-Natta catalyst, which usually consists of a transition metal compound and an organoaluminum co-catalyst, is present during the propylene polymerization process. The process that yields a high molecular weight polypropylene homopolymer is initiated by this catalyst.

  2. Quenching and Cooling: Following the completion of the polymerization process, the polymer is quenched, which is the act of halting the reaction and lowering the polymer's temperature with the use of a cooling agent such as gas or water.

  3. Solid-State Polymerization: During the solid-state polymerization process, the polymer is heated to improve its mechanical properties and remove any unreacted monomer residue. At this stage, the polymer can be heated under a vacuum or in an inert atmosphere to eliminate impurities and enhance the properties of the finished product.

  4. Pelletization: To make handling and transportation easier, the obtained polymer is sliced into small pellets using a pelletizing machine.

The characteristics of the resultant polypropylene homopolymer can be modified by adjusting process variables such as temperature, pressure, and catalyst type. Moreover, the addition of stabilizers, processing aids, and antioxidants can enhance the material's performance.


Because of its exceptional mechanical properties and affordability, polypropylene homopolymer is a thermoplastic material that finds extensive application in a range of industries. It is also highly versatile. The following are some typical uses for polypropylene homopolymer:

  1. Packaging: Polypropylene homopolymer finds extensive application in food and beverage packaging, including bottles, lids, and containers, due to its exceptional chemical resistance and thermal stability.

  2. Automotive: Polypropylene homopolymer is used in the automotive industry, particularly for parts such as interior trim, battery cases, and dashboard elements. This can be explained by its remarkable impact resistance, low weight, and resilience to adverse environmental conditions.

  3. Medical: Medical settings use polypropylene homopolymer for surgical trays, vials, and IV bags because it is non-toxic and resistant to chemical sterilization.

  4. Construction: PP homopolymer's high stiffness, durability, and resistance to environmental and chemical deterioration make it ideal for use in construction-related applications like insulation, pipes, and fittings.

  5. Textile: Because of its high tensile strength and abrasion resistance, PP homopolymer is used in textile applications like ropes, fibers, and geotextiles.

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