Overview
Chunlu Phase Change Material is an advanced thermal energy storage compound designed for precise temperature control applications. Developed as a sustainable alternative to ice or dry ice, it utilizes latent heat absorption/release principles during phase transitions. The material is engineered to maintain stable temperatures for extended periods, making it ideal for perishable goods transportation and temperature-sensitive industrial processes. Unlike conventional coolants, this PCM offers customizable phase change points to match specific requirements. Its formulation typically includes a salt hydrate or paraffin-based matrix with nucleating agents to ensure consistent performance. The product has gained significant adoption in Asia's cold chain logistics sector, particularly for seafood and pharmaceutical shipments.
Physical and Chemical Properties
The material exhibits a high energy density, storing 100-150 kJ/kg during phase change, which is 5-8 times more efficient than ice by volume. Its thermal conductivity ranges between 0.5-0.7 W/m·K, allowing gradual heat transfer. The gel-like consistency prevents leakage while maintaining full contact with containers. Chemically inert, it doesn't react with most packaging materials including HDPE and PP. The formulation is typically free from heavy metals and complies with FDA/EU food contact regulations. Rheological properties can be adjusted for pourable or rigid applications. Some variants incorporate antimicrobial additives for food-grade use.
Main Applications
Primary use cases include temperature-controlled packaging for biologics (2-8°C range) and frozen food transport (-18°C formulations). Medical applications include vaccine cold boxes and organ transplant containers where precise temperature maintenance is critical. Industrial applications extend to cooling vests for workers, temporary refrigeration during power outages, and thermal buffers for electronics manufacturing. Recent innovations include integration with passive solar cooling systems for buildings. The material's reusability (500+ cycles) makes it economically viable for closed-loop logistics systems.
Safety and Storage
While generally safe, proper handling requires PPE including gloves and goggles due to potential cryogenic effects when cold. Spills should be contained with absorbent materials—never rinse with water as this may accelerate unwanted phase changes. Storage recommendations include keeping units in their original sealed packaging below 40°C. Avoid stacking heavy items on stored units to prevent container deformation. Shelf life typically exceeds 3 years when properly stored. Disposal should follow local regulations for non-hazardous industrial waste.
B2B Procurement Guide
Industrial buyers should specify: 1) Required temperature range (±2°C precision), 2) Duration of thermal retention needed, 3) Physical form (pads, pouches, or bulk), and 4) Any regulatory certifications required (e.g., NSF, EU 10/2011). Leading manufacturers offer custom formulations with MOQs starting from 500kg. Bulk shipments typically use 20kg pails or IBC totes. Evaluate suppliers based on thermal performance test reports and batch consistency guarantees. Consider regional distributors for just-in-time delivery to reduce storage costs.
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