PNBR Impact Modifier

PNBR Impact Modifier

Details
Our PNBR‑based Impact Modifier is a stable powder‑form toughening agent featuring controlled acrylonitrile content and consistent Mooney viscosity. It restrains plasticizer blooming, retains low‑temperature toughness, improves flex‑fatigue and wear resistance. Compatible with PVC, phenolic resin, EVA, epoxy and ABS. Suited for footwear soles, composite parts, coatings and foams, delivering repeatable batch performance for polymer processors.
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Impact Modifier for Polymer Toughening and Processing Improvement with PNBR-Based Performance

Impact Modifier Material Supplier with PNBR-Based Solution

Yudahang manufactures PNBR-based Impact Modifiers for rubber and plastic processors. Many toughening agents narrow the processing window and let batch quality drift, but Yudahang's PNBR Impact Modifier is built on a controlled acrylonitrile content and stable Mooney viscosity to keep performance repeatable, batch after batch.

Discover a more predictable Impact Modifier solution — talk to Yudahang about your polymer toughening project today.

 

Performance Advantages of PNBR Impact Modifier

Strong Inhibition of Plasticiser Migration and Blooming

Formulated for close compatibility with common resin and rubber matrices, reducing the risk of surface bloom over time.

Low-migration profile helps parts keep a clean, stable surface finish through storage and end use.

Remarkable Low-Temperature Toughness Retention

Maintains impact strength in cold environments, cutting the risk of brittle failure in winter conditions.

Toughening performance stays consistent across a wide service-temperature range, not just at room temperature.

Improved Flex Fatigue Resistance and Compression Recovery

Supports parts that are repeatedly bent or compressed without losing their original shape.

Helps extend service life in dynamic, load-bearing applications.

Enhanced Wear Resistance and Stable Friction Coefficient

Improves abrasion resistance in components subject to repeated contact or sliding.

Friction performance stays steady batch after batch, supporting predictable downstream processing.

 

Impact Modifier Product Specifications

Appearance

White / light yellow free-flowing powder

Acrylonitrile (ACN) Content

26% – 35%

Mooney Viscosity ML(1+4) @100°C

50 – 150

Particle Size / Sieve Residue

98% pass through 0.9mm sieve

Volatile Matter

≤ 1.0%

Ash Content

≤ 0.8%

Gel Content

70% – 90%

Cross-linking Type

Non-crosslinked / Partially crosslinked

Isolating Agent Content

6% – 8%

Bulk Density

0.35 – 0.55 g/cm³

 

 

pnbr‑powdered‑nitrile‑butadiene‑rubber‑white‑fine‑rubber‑powder‑sample

 

Target Applications for PNBR Impact Modifier

Toughening Modifier for Phenolic Resin Composite Parts

Improves impact resistance of phenolic moulding compounds used in electrical and mechanical components.

Reduces brittleness without compromising the resin's heat resistance.

Supports stable demolding and lower reject rates in high-volume moulding.

Impact and Flexibility Enhancer for Epoxy Anti-Corrosion Coatings

Increases coating flexibility so it resists cracking under mechanical stress or substrate movement.

Helps coatings absorb impact from handling and installation without losing adhesion.

Suited for pipeline, steel structure, and industrial anti-corrosion coating systems.

Toughening Agent for ABS Engineering Plastic Blends

Boosts impact strength of ABS parts used in housings, automotive trim, and appliance components.

Helps maintain dimensional stability while improving toughness.

Works well in blends that need to pass drop or impact testing standards.

Flexibility and Tear Resistance Modifier for EVA Foam Composites

Improves tear strength of EVA foam used in footwear midsoles and cushioning products.

Supports better flex fatigue performance under repeated compression.

Helps foam parts keep their shape and feel after extended use.

 

FAQ before Choosing a PNBR Impact Modifier Supplier

1. Does improving impact toughness with PNBR come at some cost to oil and chemical resistance?

Generally, PNBR's nitrile-based structure tends to support oil and chemical resistance rather than work against it. Actual results can still vary by formulation, so we'd recommend a small trial run before scaling up.

2. Could the PNBR Impact Modifier lead to surface blooming or migration issues over time?

In most formulations, this risk is fairly low, though it can depend on dosage and how the base resin is compounded. Testing on your specific formulation is the best way to confirm.

3. What should I know about storage conditions and shelf life?

Keeping the material in a cool, dry place is usually enough to avoid caking, though very humid environments may shorten shelf life somewhat. If you're storing in bulk for an extended period, it's worth checking with our team.

4. Are different particle size options available?

We can typically offer a few fineness options depending on order volume and equipment needs — feel free to share your target mesh so we can confirm what's feasible.

 

 

Ready to Optimise Your Polymer Performance with PNBR-Based Impact Modifier

Yudahang supports your project from formulation to bulk supply. Whether you need a custom acrylonitrile content, a specific mesh size, wholesale volumes, documentation for a project tender, or factory test reports to verify quality, our team is ready to help. Get in touch with Yudahang today to discuss your PNBR Impact Modifier requirements and keep your production running smoothly, batch after batch.

powder-nitrile-rubber-pnbr-white-powder-impact-modifier-for-resin-blending

 

 

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