Polybutyleneglycol (PBG), a versatile polymer known scientifically as 1,2-Propanediol, Polymer With Ethyloxirane (CAS: 31923-86-1), is a crucial material utilized across various industrial sectors. Its unique chemical composition and properties lend themselves to a wide range of applications, from enhancing plastic formulations to serving as a base for advanced lubricants. This article highlights the key uses of PBG and provides essential guidance for procurement professionals looking to buy this compound from Chinese manufacturers.

PBG is fundamentally a polyether polymer, typically appearing as a colorless liquid with a molecular weight often in the range of 985, though customizable options are available. Its technical specifications, such as a viscosity of 90 mm²/s at 40°C and a low moisture content (0.02%), make it suitable for applications requiring controlled fluid dynamics and stability. The presence of hydroxyl end groups (HO-(C4H8O)n-C3H6O-(C4H8O)n-H) allows for further chemical modification, enhancing its utility in complex formulations.

In the plastics industry, PBG functions effectively as a plasticizer. By incorporating PBG into polymer matrices, manufacturers can improve flexibility, impact resistance, and overall processability of their finished goods. This makes it invaluable for producing films, coatings, and molded items where pliability is a key performance indicator. For procurement managers, understanding these benefits helps in identifying cost-effective solutions that enhance product quality.

Furthermore, PBG is widely recognized for its utility as a lubricant base stock. Its inherent thermal stability and low volatility ensure that lubricants formulated with PBG can perform reliably under a broad spectrum of operating temperatures. This characteristic is critical for high-performance lubricants used in demanding machinery and automotive applications. The compound’s low surface tension also aids in wetting metal surfaces, providing superior lubrication and reducing wear.

When considering the procurement of Polybutyleneglycol, sourcing from China offers significant advantages, particularly in terms of cost efficiency and access to large-scale production capabilities. Companies like Ningbo Inno Pharmchem Co., Ltd. are prominent manufacturers and suppliers in this segment. They offer a range of PBG grades, often corresponding to trade names like UNIOL PB-500, PB-700, etc., and are equipped to handle bulk orders. For businesses aiming to buy PBG, partnering with such reputable Chinese suppliers ensures a stable supply chain and competitive pricing, coupled with the potential for technical support and custom specifications.

In summary, Polybutyleneglycol (PBG) is a remarkably versatile polymer with critical roles in plastics, lubricants, and other industrial applications. For procurement professionals, understanding its properties and identifying reliable Chinese manufacturers and suppliers is key to obtaining this essential chemical efficiently and cost-effectively. If you are looking to purchase PBG, explore the offerings from experienced suppliers who can meet your specific quality and quantity requirements.