Overview
D2W is a proprietary oxo-biodegradable additive developed by Symphony Environmental Technologies. It modifies conventional plastics (particularly polyethylene and polypropylene) to degrade more rapidly when exposed to environmental triggers like heat, UV light, and mechanical stress. The additive works by introducing metal salt catalysts that initiate oxidative degradation, breaking polymer chains into smaller fragments that microorganisms can subsequently metabolize. This process addresses plastic waste concerns while maintaining material performance during use.
Physical and Chemical Properties
As a masterbatch formulation, D2W typically comprises 1-5% active ingredients in a polymer carrier. The active components are transition metal compounds (often cobalt or manganese stearates) that catalyze peroxide formation in plastics. Key characteristics include thermal stability up to processing temperatures (160-200°C), minimal impact on melt flow index, and compatibility with standard extrusion/blow molding equipment. The additive doesn't alter initial mechanical properties but accelerates embrittlement once degradation begins.
Main Applications
Primary use cases include shopping bags, agricultural films, and food packaging where controlled lifespan is advantageous. D2W-modified films maintain strength during usage but degrade within months to years post-disposal, depending on environmental conditions. In B2B contexts, manufacturers incorporate D2W during film production at 1-3% loading rates. The additive complies with international standards for oxo-biodegradation (e.g., UAE 5009:2009) but requires verification for specific regional regulations.
Safety and Storage
D2W poses minimal workplace hazards when handled properly. Powder forms require dust control measures; pre-dispersed masterbatches reduce exposure risks. Processed products containing D2W are safe for consumer contact. Storage recommendations emphasize protection from moisture and temperatures exceeding 40°C to prevent premature activation. Shelf life typically exceeds 12 months in sealed containers. Waste material should be processed through standard plastic recycling streams unless degraded.
B2B Procurement Guide
When sourcing D2W, verify supplier certifications (e.g., ISO 9001) and request technical datasheets confirming compliance with target market regulations. Bulk purchases (500kg+) often reduce costs by 15-20%. Key procurement considerations include compatibility testing with base resins, validation of degradation timelines for specific applications, and documentation for sustainability claims. Some buyers prefer masterbatches over pure additives for easier handling and consistent dispersion.
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