• Fengfan CAS 9038-95-3 Poly(ethylene glycol-co-propylene glycol) monobutyl (JC-660)
  • Fengfan CAS 9038-95-3 Poly(ethylene glycol-co-propylene glycol) monobutyl (JC-660)

Fengfan CAS 9038-95-3 Poly(ethylene glycol-co-propylene glycol) monobutyl (JC-660)

JC-660 is a Poly(ethylene glycol-co-propylene glycol) monobutyl , readily soluble in water, ethanol and organic solvents, exhibiting excellent emulsifying, defoaming and lubricating properties.
  • Fengfan CAS 9038-95-3 Poly(ethylene glycol-co-propylene glycol) monobutyl (JC-660)

Description

CHEMICAL AND PHYSICAL PROPERTY

Item Index
Appearance (25℃) Colorless to yellowish liquid
specific gravity 1.040-1.050
Color (APHA,Pt-Co) ≤50
Water (KARL-FISHER,%w/w) ≤0.5
PH value (1% aqueous solution) 5-7
Cloud point (℃) 1% aqueous solution 55-59
Viscosity (mPa.s) 200-260


PACKAGE
200 kg / 1000 kg , stored in cool, dry and well-ventilated place, shelf life 2 years.


Functional Positioning for Synthetic Lubricant Formulators
JC-660 (Polyethylene glycol-co-propylene glycol monobutyl ether) is engineered for the demanding formulations of water-soluble metalworking fluids (MWF) and synthetic hydraulic fluids. Targeted at chemical formulators and industrial lubricant blenders, this non-ionic polymer serves as the functional backbone for synthetic coolants. Unlike mineral oils, it provides superior cooling and lubricity without the bacterial instability or mess. It is positioned as a high-performance alternative for surfactants manufacturers seeking to upgrade their product lines from traditional emulsions to cleaner, transparent synthetic solutions. By utilizing JC-660, formulators can create fluids that offer excellent tool life and surface finish, addressing the needs of modern high-speed machining centers that require low-maintenance, biostable coolants.

Technical Architecture and Inverse Solubility
The core technical architecture of JC-660 is based on a specific ratio of ethylene oxide (EO) and propylene oxide (PO) blocks initiated with butanol. This structure grants the molecule unique "inverse solubility" characteristics. Below its cloud point, it acts as a water-soluble surface active agent, ensuring complete system homogeneity. However, at the elevated temperatures generated at the cutting zone, it becomes insoluble, plating out on the hot metal to provide a concentrated lubricating film. Key parameters include a precise viscosity index and a controlled cloud point (CAS 9038-95-3). Its molecular weight is optimized to balance hydrodynamic lubrication with wetting properties, ensuring effective heat removal while minimizing drag-out losses on chips and workpieces.

Industrial Application and Cleaning Versatility
In the industrial sector, JC-660 is widely utilized in the production of fire-resistant hydraulic fluids (HFC type), gear lubricants, and textile fiber lubricants. Its application value extends to industrial cleaning where its inherent solvency helps remove heavy soils. For a surfactant detergent formulator, JC-660 offers a dual benefit: it acts as a low-foaming wetting agent and a solvent for grease. It is also completely compatible with water-glycol fire-resistant hydraulic fluids used in steel mills and die casting. By integrating JC-660, industries benefit from fluids that are safer (non-flammable), easier to treat in wastewater systems compared to oil-based emulsions, and provide extended service intervals due to their high oxidative stability.


Product Advantages

Thermo-Responsive Lubrication Mechanism
The structural design of JC-660 features a thermo-responsive mechanism that optimizes lubrication efficiency. The polyether backbone is engineered to remain fully soluble in the bulk coolant sump, keeping the machine clean. However, upon contact with the heat generated by friction, the polymer undergoes a phase change, depositing a robust lubricating film exactly where it is needed most. This "Smart Lubrication" approach differentiates it from standard anionic surfactants which typically provide static wetting but lack this dynamic load-carrying capability. For the end-user, this translates to significantly reduced tool wear and better dimensional accuracy in machining operations, validating the technical sophistication of the polymer design.

Robust Formulation Compatibility
JC-660 excels in its ability to integrate into complex chemical systems. It is non-ionic, meaning it does not react adversely with hard water ions (calcium/magnesium) or other additives. This allows surfactants manufacturers to blend it seamlessly with corrosion inhibitors, biocides, and pH buffers without causing precipitation or instability. Furthermore, it exhibits excellent compatibility when used alongside anionic surfactants in hybrid formulations, where the anionic component provides additional wetting and the JC-660 provides the primary lubricity and foam control. This modular adaptability simplifies the formulation process, allowing for the creation of versatile fluid concentrates that perform consistently across varying water qualities and operational conditions.

Low-Foam Detergency Profile
Innovation in the alkoxylation process ensures that JC-660 possesses a naturally low-foaming profile, essential for high-pressure CNC systems. Beyond lubrication, it functions effectively as a surfactant detergent within the fluid. It helps keep grinding wheels open and free from loading by preventing metal fines from agglomerating. The molecule's surface activity also aids in rejecting tramp oil (hydraulic leaks), allowing it to float to the surface for easy removal by skimmers. This self-cleaning characteristic drastically extends the sump life of the fluid and reduces the frequency of fluid change-outs, offering tangible economic value to plant operators through reduced downtime and disposal costs.


Use Scenarios

Synthetic Cutting Fluid Development
A Formulation Chemist at a specialized lubricant company is tasked with developing a new fully synthetic grinding fluid for aerospace alloys. The requirement is for a clear fluid that cools rapidly and prevents wheel loading. The chemist selects Fengfan JC-660 as the primary lubricity additive. By leveraging this surface active agent, the formulation achieves high transparency and excellent cooling. The chemist appreciates that JC-660 does not foam under high-pressure nozzle application, unlike many standard esters or soaps. The resulting fluid allows operators to see the workpiece clearly during machining while maintaining a cool, smoke-free environment.

Fire-Resistant Hydraulic Systems
A Plant Safety Manager in a steel casting foundry needs to replace mineral oil hydraulic fluids to reduce fire risks near molten metal. The manager specifies a Water-Glycol (HFC) fluid formulated with JC-660 thickeners. In this context, JC-660 acts as the viscosity modifier and lubricant. The surfactant supplier ensures the polymer has the correct molecular weight to maintain shear stability in the hydraulic pumps. The manager relies on this fluid to operate high-pressure die-casting machines safely. If a line ruptures, the water-based fluid will not ignite, ensuring the safety of personnel and infrastructure while still protecting the expensive hydraulic pumps from wear.

Heavy-Duty Hard Surface Cleaning
A Product Developer for an industrial cleaning brand creates a low-foam degreaser for automatic floor scrubbers. The formula needs to cut through machine shop grease without creating foam that would damage the scrubber's vacuum motor. The developer uses JC-660 in combination with specific anionic surfactants. The JC-660 provides the necessary solvency for heavy hydrocarbons and acts as a defoamer/moderator for the anionic components. This specific blend allows the floor scrubber to operate efficiently, lifting tire marks and oil stains from the concrete floor, leaving a non-slip, residue-free surface.


About Us

Shandong Fengfan Electrochemical is a specialized manufacturer dedicated to the synthesis of polyether polyols and industrial surfactants. We serve as a trusted partner to global surfactants manufacturers and lubricant blenders, providing high-purity chemical intermediates like the JC-660 Butyl Polyether. Our expertise lies in precise alkoxylation technology, allowing us to control molecular weights and EO/PO ratios to meet specific performance targets. Unlike general traders, we operate a state-of-the-art production facility with rigorous quality control, ensuring batch-to-batch consistency for critical applications in metalworking and hydraulics. We understand the complex interactions between different chemical classes, such as the synergy between non-ionics and anionic surfactants. Our commitment is to supply robust, high-performance raw materials that enable our clients to formulate superior fluids. We empower your business with technical support and reliable supply chains, driving efficiency in industrial lubrication and cleaning.
Request a technical data sheet for JC-660 today!


FAQ

What is the CAS number for JC-660?
The CAS number for this Polyethylene glycol-co-propylene glycol monobutyl ether is 9038-95-3. It acts as a versatile surface active agent known for its inverse solubility properties.

Is JC-660 compatible with anionic surfactants?
Yes, JC-660 is non-ionic and shows excellent compatibility with anionic surfactants. It is often used in blends to provide lubricity and foam control that anionic components cannot achieve alone.

Can this product be used in cleaning applications?
Absolutely. Due to its solvency and low-foam characteristics, it functions well as a surfactant detergent component in heavy-duty industrial cleaners, especially for removing oily soils.

Is it suitable for high-pressure systems?
Yes, JC-660 is designed to be low-foaming, making it ideal for high-pressure spray cleaning and CNC machining applications where standard surfactants would cause excessive foam buildup.

Are you a manufacturer or a trader?
Fengfan is a direct surfactant supplier and manufacturer. We synthesize JC-660 in our own facility, ensuring strict quality control over the polymerization process to meet exact specifications.

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