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PSN | High Toughness Impact Modifier for Polystyrene (PS)

The PSN is a high toughness impact modifier specifically developed for polystyrene (PS), designed to address the inherent limitations of PS materials, such as high rigidity, brittleness, and insufficient impact resistance.
With excellent compatibility with the PS matrix, PSN effectively enhances toughness, elasticity, impact resistance, and crack resistance, while maintaining good processing flowability, dimensional stability, and surface quality. This enables the final products to achieve both structural strength and long-term reliability.
As the use of recycled PS becomes increasingly widespread, material embrittlement and performance degradation have become critical challenges in mass production. PSN effectively improves the mechanical properties of recycled PS, helping customers enhance product quality, extend service life, and achieve both cost efficiency and sustainability goals.

Key Features

Significantly Improved Material Toughness
Effectively reduces the brittleness of PS materials, enhancing ductility and energy absorption, allowing products to better withstand external impact.
Excellent Impact Resistance
Substantially improves impact strength and crack resistance, reducing the risk of breakage during drops, collisions, and localized stress.
Maintains Excellent Processing Performance
Provides good melt flow and dispersion, ensuring stable injection molding efficiency and consistent product quality.
Preserves Material Rigidity
While improving toughness and impact resistance, it retains the original rigidity and dimensional stability of PS, balancing mechanical performance and processing requirements.
Suitable for Recycled PS Modification
Effectively improves brittleness issues in recycled PS, increasing the value utilization and mass production quality of recycled materials.
Enhanced Product Durability
Extends product service life and improves reliability under long-term use and high-impact conditions.

Compatible Polymers

PSN is compatible with the following polystyrene materials

  • GPPS (General Purpose Polystyrene)
  • HIPS (High Impact Polystyrene)
  • Recycled PS
  • Modified PS Compounds

Customized formulations are also available to meet specific polymer systems and application requirements.

Recommended Addition Level

Recommended loading level: 1–10 wt%
The optimal addition ratio may vary depending on the base resin, performance requirements, and product design.

Recommended Processing Methods

The PSN is suitable for:

  • Injection Molding
  • Polymer Compounding

The material can be directly applied in conventional PS injection molding processes, typically without the need for significant adjustments to equipment or processing parameters, enabling rapid mass production while maintaining stable quality.

Typical Applications

Recycled Plastics Modification
  • Recycled PS modification
  • Recycled plastic applications
  • Circular material upgrading
Consumer Electronics
  • Electronic product housings
  • Home appliance housings
  • Functional plastic components
Household Products
  • Storage products
  • Kitchenware
  • Daily-use products
Packaging Industry
  • Packaging containers
  • Protective packaging
  • Industrial packaging materials
Industrial Applications
  • Industrial components
  • Structural parts
  • High-impact injection molded products

Why Choose PSN?

Significantly enhances the toughness of PS materials
Excellent impact resistance and crack resistance
Maintains good processing flowability
Preserves material rigidity and dimensional stability
Especially suitable for recycled PS modification
Improves product reliability and service life
Suitable for mass production
Customizable formulations available according to requirements

Addition Ratio & Performance Evaluation

Properties Unit PSN
10% 8% 5% 3% 1% 0%
MI g/10min 5.5 6.5 7.0 8.5 10 12
Impact Strength Kg-cm/cm 4.0 3.5 2.5 1.5 1.2 1.0

*All given data should be considered as a guide but cannot be regarded as an engagement from our side.