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What are the advantages and application differences of commonly used PVC impact modifiers?
2025-04-11

ACR impact modifier Balance rigidity and toughness to enhance weather resistance.

Characteristics and functions:

✅  Enhanced impact resistance: ACR improves the toughness of PVC matrix through its "core-shell structure", especially suitable for outdoor products.

✅  Enhance Transparency: Some ACR varieties are suitable for transparent PVC products and do not affect their optical performance.

✅  Excellent weather resistance: Compared to CPE and MBS, ACR has more stable performance in UV and high temperature environments.

Main applications:

1. PVC profiles, pipes, and guardrails: improve impact resistance and enhance outdoor weather resistance.

2. Transparent sheets and films: enhance toughness while ensuring high transparency.

3. Automotive parts: Improve impact strength and reduce the risk of brittle fracture caused by temperature changes.


CPE impact modifier Cost effective choice, widely applicable

Characteristics and functions:

✅  Universal anti powder: CPE has good compatibility with PVC and can effectively improve impact strength.

✅  Good low-temperature resistance: PVC products modified with CPE still have excellent toughness at -20 or even lower temperatures.

✅  Flame retardancy and chemical resistance: suitable for special applications such as wires, cables, pipes, etc.

Main Applications

1. PVC pipes and fittings: Improve impact resistance and low temperature resistance.

2. Cable sheath: improve flexibility, enhance weather resistance and aging resistance.

3. PVC flooring, door and window profiles: optimize impact resistance and enhance long-term service life.


MBS impact modifier Selection of high transparency products:

Characteristics and functions:

✅  Superb impact resistance: Compared to ACR and CPE, MBS exhibits more outstanding low-temperature impact strength.

✅  Does not affect transparency: Can be used for transparent PVC products, such as packaging materials and high-end home appliance components.

✅  Improve processing fluidity: optimize melt viscosity, enhance injection molding and extrusion process stability.

Main applications

1. Transparent PVC packaging (bottles, sheets): enhances impact strength and maintains high transparency.

2. Electronic product casing: Enhance impact resistance and improve durability.  

3. High end doors, windows, and furniture: balance strength and visual effects.