PP Impact Copolymer
Trusted wholesale supplier of PP impact copolymer. Providing premium brand resins for manufacturers. Competitive pricing with reliable supply.
Sabic
BASF
CELANESE
DUPONT
INEOS
FORMOSA
LG Chem
Borouge
Chi Mei
NatureWorks
LOTTE
PP Impact Copolymer
PP Impact Copolymer Is a polypropylene (PP) modified to enhance impact resistance. Polypropylene is copolymerized with another monomer, typically ethylene, to form a material with a two-phase structure. This structure includes:
- Polypropylene matrix, providing rigidity and strength.
- Dispersed rubber phase, typically composed of ethylene-propylene rubber (EPR), which enhances the material's ability to absorb energy and resist fracture under mechanical stress or impact.
This combination makes PP impact copolymers tougher and less prone to brittle failure than standard polypropylene homopolymer, particularly at low temperatures. They are commonly used in applications requiring durability, such as automotive bumpers, luggage, and other consumer goods that must withstand impact without cracking. In essence, PP impact copolymer is a specialty polypropylene engineered for high impact strength and versatility.
Supply of various grades of PP impact copolymer pellets
| Grade | Manufacturer | Melt Flow Index (MFI) | Properties | Applications |
| BJ368MO | Borouge | 70 | Download | Household goods |
| BD265MO | Borouge | 7 | Download | |
| BD950MO | Borouge | 7 | Download | Packaging tools, containers |
| BH975MO | Borouge | 38 | Download | Housings, cups, protective covers |
| BF970MO | Borouge | 20 | Download | Sealing devices, toys |
| JM-350 | LOTTE | 10 | Download | Toys, containers, sporting goods |
| BE961MO | Borouge | 12 | Download | Furniture, daily necessities |
| 36MK10 | Sabic | 5.5 | Download | Household products, packaging, protective covers |
| RP2400 | Yuhwa | 0.25 | Download | Pallets, drums |
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PP Impact Copolymer FAQs
What are the key mechanical properties of PP impact copolymer?
Its mechanical properties PP Impact Copolymer vary by formulation, but typical values are as follows:
Density: ~0.90 – 0.91 g/cm³
Melt Flow Index (MFI, 230°C/2.16kg): 2 – 50 g/10 min (varies by grade)
Tensile strength at yield: 20 – 30 MPa
Flexural modulus: 800 – 1500 MPa
Izod impact strength (notched, 23°C): 20 – 80 kJ/m²
Izod impact strength (notched, -20°C): 5 – 30 kJ/m²
These values make PP-IC suitable for impact-resistant applications such as automotive bumpers, battery cases, and industrial storage containers..
What are the primary processing methods for PP impact copolymer?
PP-IC offers high versatility. It can be processed via the following methods:
Injection molding: Used for automotive components, containers, and household goods.
Extrusion: Used for pipes, sheets, and profiles.
Thermoforming: Used for food containers and packaging applications.
Blow molding: Used for bottles and hollow containers.
Processing parameters depend on the grade and melt flow index (MFI), with typical injection molding temperatures ranging from 190°C to 240°C..
How does PP impact copolymer perform at extreme temperatures?
PP-IC exhibits superior low-temperature toughness , attributed to its rubber phase. However, its heat resistance is slightly lower, with specific parameters as follows:
Service temperature rangeRange: -30°C to 100°C
Vicat Softening Temperature: 125 – 150°C
Heat Deflection Temperature (HDT, 0.45 MPa): 70 – 95°C
For applications exposed to continuous high temperatures (>100°C),, PP homopolymer or other engineering plastics (such as PBT or PA) may be more suitable.
How is the chemical resistance of PP impact copolymer?
PP-IC exhibits excellent resistance to a wide range of chemicals, including:
Acids and Bases: Resistant to both diluted and concentrated acids/bases.
Solvents: Good resistance to alcohols and hydrocarbons, but swelling occurs in chlorinated solvents and aromatic hydrocarbons..
Water and Moisture: Minimal water absorption (<0.03%), ensuring long-term stability.
UV Resistance: Requires additives (UV stabilizers). Suitable for long-term outdoor use.
This makes it an ideal choice for chemical containers, automotive fuel tanks, and industrial storage applications..
What are the common grades of PP impact copolymer?
Polypropylene impact copolymer (PP-IC) grades vary based on impact strength, rigidity, and flowability, which are typically measured by the melt flow index (MFI)—an indicator of how easily the material flows during processing. Common types include:
- High-impact grades (low MFI, high toughness): These grades offer excellent durability and impact resistance, making them ideal for applications such as automotive bumpers and industrial storage bins.
- Balanced grades (medium MFI, moderate impact resistance and rigidity): These grades strike a balance between toughness and rigidity, suitable for rigid packaging and battery casings.
- High-flow grades (high MFI, lower toughness): Designed for rapid processing and thin-wall components, commonly used in thin-wall packaging and fast-cycle injection molding.
Selecting the appropriate grade depends on your processing method and application requirements..
What is the difference between PP impact copolymer and PP homopolymer?
The difference between PP impact copolymer (PP-IC) and PP homopolymer lies in impact resistance and flexibility.While PP homopolymer offers higher rigidity and better heat resistance, PP-IC incorporates an ethylene-propylene rubber (EPR) phase.Enhances impact strength, particularly under sub-zero temperature conditions (e.g., -20°C to -30°C). This makes PP-IC an ideal choice for applications requiring toughness and durability. Polypropylene homopolymer combines low impact strength, moderate flexibility, and high rigidity, while offering good clarity and a high melt flow index for ease of processing. Typical applications include rigid packaging and textile fibers.
In contrast, PP impact copolymer exhibits high impact strength—especially at low temperatures—thanks to its rubber phase, and imparts greater flexibility to the material. It features moderate rigidity, lower clarity (more opaque), and a reduced melt flow index. This grade is commonly used in automotive components, piping systems, and other durable containers.
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