三丙二醇 High Purity Tripropylene Glycol (TPG)

Tripropylene Glycol (TPG, CAS 24800-44-0) is a premium, high-boiling, colorless, and slightly viscous clear liquid with mild characteristic odor and strong hygroscopic properties. It is completely miscible in all proportions with water, alcohols, ethers, ketones, and the majority of universal organic solvents. As a highly efficient hydrophilic polyol, TPG features extremely low volatility, low vapor pressure, moderate chemical reactivity, and superior coupling and solvency behaviors. TPG plays an indispensable role in modern radiation curing technology, serving as the essential building block for synthesizing Tripropylene Glycol Diacrylate (TPGDA)—a critical high-performance UV-curable monomer. Additionally, it operates as a high-performance carrier solvent and reactive intermediate in manufacturing advanced printing inks, industrial coatings, textile lubricants, and specialty resins.

Technical Specifications & Physical Properties

Core Applications

• Advanced UV Curing Chemistry: Primarily deployed as the chemical bedrock to synthesize the reactive diluent monomer TPGDA, which is heavily specified in UV-curable coatings, flexographic inks, and optical fiber cladding formulas.

• Premium Resins & Polyurethane Syntheses: Acts as a vital liquid modifier for formulating unsaturated polyesters, alkyd paints, and polyurethanes (PU) to impart superior flex-durability, low fluid viscosity, and mechanical rub-resistance.

• High-End Industrial Inks & Varnishes: Serves as a high-boiling co-solvent and leveling agent in screen printing inks, PCB solder masks, and heavy-duty protective finishes to effectively regulate drying rheology.

• Functional Fluids & Precision Cleaners: Utilized as a stable coupling agent in textile spinning lubricants, metalworking fluids, advanced brake fluids, or as a low-volatility precision solvent for industrial electronics cleaning.

Packaging & Storage

• Packing: Packaged in 215 KGS net weight iron or HDPE plastic drums. Wholesale maritime shipping supports 1000 KGS IBC containers or global bulk ISO TANK systems for immediate supply.

• Storage: Classified as a non-hazardous chemical fluid but is highly hygroscopic. Store within a completely dry, cool, and well-aerated dedicated warehouse away from moisture or rain. Keep far away from flames, heat sources, and open sparks. Maintain all bungs airtight and store strictly isolated from powerful oxidizers and acids.