In powder coating production, difficult-to-disperse pigments such as carbon black, phthalo blue and phthalo green have long been a "persistent challenge" for formulation engineers. Uneven dispersion can easily lead to flooding, insufficient gloss, inadequate blackness, and may also affect coating flowability and film clarity, directly compromising product quality. Therefore, PTN6602C Special Effect Dispersant, developed by CHEYLD specifically to address these pain points, can directly replace certain imported products like 2200/3955P, offering the powder coating industry a new, high-efficiency dispersion solution!
Product Core Strength: Targeted Solution to Dispersion Challenges
As a highly reactive polymeric dispersant, the core advantage of PTN6602C lies in its "precise compatibility with difficult-to-disperse pigments and comprehensive enhancement of coating performance," manifested in three key highlights:
1. The "Nemesis" of Difficult-to-Disperse Pigments, Eliminates Flooding, Optimizes Color Development.
For pigments with high dispersion difficulty like carbon black, phthalo blue, and phthalo green, PTN6602C enables highly efficient wetting and dispersion. It not only promotes pigment tinting dispersion within the binder but also fundamentally prevents flooding issues, ensuring uniform and stable coating color and significantly enhancing color development performance.
2. Improves Flowability and Appearance, Upgrades Both Gloss and Transparency.
When used with deep-colored pigments, PTN6602C effectively reduces coating thixotropy, creating excellent flowability—meaning smoother subsequent application and more uniform film formation. Simultaneously, it significantly enhances color strength and transparency, noticeably increasing gloss while reducing haze, resulting in a more refined film appearance.
3. Powerful Viscosity Reduction and Increased Load, Pushing Carbon Black Blackness Further.
Its excellent viscosity-reducing action helps formulation engineers increase the addition level of organic pigments in coatings, optimizing costs while ensuring coating performance. Especially when dispersing carbon black, PTN6602C can further enhance carbon black blackness, taking the "blackness expression" of deep-colored coatings to the next level.
Supported by 6 Tested Formulations: Performance You Can See
Evidence speaks louder than words! The 6 sets of tested formulations provided by Suzhou Patena clearly demonstrate the performance enhancement PTN6602C brings to powder coatings. We categorize them into two systems:
1. Polyester / Epoxy Resin System Formulations (Formulations 1-3)
This system uses polyester resin 9011F and epoxy resin E-12 as core binders. The curing condition is standardized at 180°C/15min, with a film thickness of 60-90µm. It is suitable for powder coating applications with specific resin compatibility requirements. The specific formulations and properties are as follows:
From the data, it is evident that in this system, as the addition level of PTN6602C increases, coating gloss, leveling, and film clarity progressively improve, while impact strength remains stable at 50 kg·cm, indicating unaffected basic mechanical properties.
2. Pure Polyester / TGIC System (Formulations 4-6)
This system uses pure polyester resin CE2098 and curing agent TGIC as core binders. The curing condition is adjusted to 200°C/10min, with a film thickness also at 60-90µm. It is suitable for powder coating applications demanding curing efficiency and film toughness. The specific formulations and properties are as follows:
In this system, the optimization trend of PTN6602C on coating performance aligns with the polyester/epoxy resin system: addition significantly improves leveling and film clarity, gloss noticeably increases, and impact strength remains stable. This demonstrates the product's adaptability across different resin systems.
Physical Properties & Usage/Dosage
l Physical Properties:
l Usage: Directly co-extruded with resin, fillers, and other additives. No additional processing steps required, compatible with existing production lines.
l Dosage: 0.5%-1% of the total formulation weight.
