Revonox^® 420V is Chitec Technology’s innovative, phenol-free antioxidant derived from palm oil, offering a sustainable alternative to traditional tallow-based antioxidants. U

Revonox® 420V is an eco-friendly antioxidant developed by Chitec Technology. As a phenol-free antioxidant derived from natural palm oil, it offers a sustainable solution to replace traditional tallow-based or phenolic antioxidants in plastic applications. Revonox® 420V stands out with its excellent melt processing stability, enhanced gas fading resistance, and outstanding color retention performance.

Using Chitec’s proprietary DAHA® technology, Revonox® 420V solves yellowing problems commonly found in phenolic antioxidants, making it an ideal choice for polyolefin antioxidants, especially in polypropylene (PP) and polyethylene (PE).

This high-performance antioxidant additive pairs well with phosphate ester antioxidants and light stabilizers like Deox 68 and Chiguard® 228. Together, they improve melt stability, weather resistance, and long-term durability in PP and PE-based applications such as fibers, films, and automotive TPO.

Recommended dosage levels range from 0.05% to 0.15%, depending on the polymer type and application needs. Revonox® 420V is a versatile, sustainable PP/PE antioxidant solution for manufacturers seeking to enhance performance while meeting green material standards.

1. Phenol-Free Formula to Prevent Yellowing
   Built with advanced DAHA^® technology, 420V effectively prevents the discoloration and gas-fading issues common with phenolic antioxidants. This makes it ideal for applications where color stability is crucial, such as films and fibers with large surface areas.
2. Synergistic Stability in Processing
   When combined with Deox 68, 420V delivers a powerful synergistic effect, helping to maintain the initial color and stabilize the melt flow index (MFI) over multiple extrusion cycles.
3. Exceptional High-Temperature Color Stability
   Engineered for high-temperature applications, 420V provides consistent performance during repeated high-temperature extrusions, with much more stable color compared to traditional B-blend antioxidants. This stability makes it ideal for expanding applications of PE and PP in high-speed molding processes.
4. Eco-Friendly with Low Migration for Sustainable Manufacturing
   Derived from plant-based oils and free of animal products, 420V boasts excellent compatibility with polyolefins and minimal migration. It’s FDA-approved, meeting today’s industrial standards for sustainable, green manufacturing.

As antioxidants are depleted during multiple extrusions, they lose their ability to protect polyolefins under thermal stress. Here’s how 420V excels under testing conditions:

1. Polymer: PP (homopolymer, MFI = 5.5)
2. Processing Conditions: Multiple extrusions using a twin-screw extruder (35 mm diameter, L/D = 36) at 230°C and 2.16 kg pressure, with melt flow rate (MFR) measured every 10 minutes
3. Formula: 0.1 phr 420V and 0.1 phr Deox 68

In tests using traditional antioxidants, the melt flow index (MFI) surged from 9.78 to 42.80 during repeated extrusions, indicating severe material degradation. By contrast, the addition of 420V limited the MFI increase to 19.45, significantly enhancing stability. With 420V and Deox 68 combined, the melt flow rate change (ΔMFR) further dropped to 11.79, showing exceptional processing stability and a longer material lifespan.

Chitec conducted high-temperature aging tests on PP, exposing samples to 150°C for 6 days to compare color stability across different antioxidants.

1. Left: Samples containing 0.1 phr phenolic antioxidants and Deox 68 showed noticeable yellowing, indicating poor color stability under prolonged high heat.
2. Right: Samples with 0.1 phr 420V and Deox 68 maintained excellent color stability with minimal yellowing, underscoring 420V's superior performance in high-temperature aging environments.