Poly(caprolactone) diol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 36890-68-3 |
| Product name | Poly(caprolactone) diol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial GradeCosmetic GradeFood Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for Poly(caprolactone) diol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Poly(caprolactone) diol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Poly(caprolactone) diol
| Industry | Applications | Processing Methods |
|---|---|---|
| Biomedical | Absorbable sutures, drug delivery carriers, tissue engineering scaffolds | Melt spinning, electrospinning, solvent casting, 3D printing |
| Polymers | Toughening modifier for biodegradable plastics; component of thermoplastic elastomers | Copolymerization (e.g., with lactic acid or glycolic acid), blending, reactive extrusion |
| Coatings & Adhesives | Flexible segment component in eco-friendly polyurethane coatings and adhesives | Polyurethane synthesis via prepolymer method, with PCL diol serving as the soft segment |
| Personal Care | Controlled-release carrier for active ingredients in cosmetics; biodegradable microspheres (e.g., exfoliating beads) | Emulsion–solvent evaporation, microfluidic preparation |
| Agriculture | Controlled-release pesticide granules; matrix material for biodegradable mulch films | Melt-blending followed by blown-film extrusion, solution casting, hot-press molding |
Manufacturing Quality Control of Poly(caprolactone) diol
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Acid Value | Acid-Base Titration | Neutralization of free carboxylic acid groups with standardized KOH solution using phenolphthalein indicator. |
| Hydroxyl Value | Acetylation Titration | Reaction of hydroxyl groups with acetic anhydride, followed by back-titration of unreacted anhydride with NaOH. |
| Molecular Weight (Mn, Mw) | Gel Permeation Chromatography (GPC) | Separation of polymer chains by hydrodynamic volume in solution, calibrated against polystyrene standards. |
| Polydispersity Index (PDI) | Gel Permeation Chromatography (GPC) | Ratio of weight-average to number-average molecular weight derived from GPC elution profile. |
| Moisture Content | Karl Fischer Titration | Quantitative electrochemical titration based on the reaction of water with iodine and sulfur dioxide in pyridine/methanol medium. |
| Residual Monomer (Caprolactone) | Gas Chromatography (GC) | Separation and quantification of unreacted epsilon-caprolactone monomer using flame ionization detection. |
| Color (APHA) | Visual Spectrophotometry | Comparison of sample color intensity against platinum-cobalt standard solutions at 430 nm wavelength. |
| Viscosity (Solution) | Capillary Viscometry | Measurement of flow time of polymer solution through a calibrated capillary tube under gravity to determine intrinsic viscosity. |
| Ash Content | Gravimetric Analysis | Combustion of sample at 550-600 C followed by weighing of non-volatile residue. |
| Heavy Metals (Pb, Cd, Hg, Cr) | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | Atomization and excitation of metals in argon plasma; quantification via element-specific emission intensities. |
| Chloride Content | Potentiometric Titration | Titration with silver nitrate using silver/silver chloride electrode to detect endpoint via potential change. |
| Thermal Stability (Td5%) | Thermogravimetric Analysis (TGA) | Measurement of mass loss as a function of temperature under controlled nitrogen atmosphere to determine onset decomposition temperature. |
Technical Specifications of Poly(caprolactone) diol
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline solid |
| Purity | >=98.5% |
| Melting Point | 58–62°C |
| Water Content (KF) | <=0.5% |
| Acid Value (mg KOH/g) | <=2.0 |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Odor | Characteristic mild odor |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of Poly(caprolactone) diol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Poly(caprolactone) diol
Industrial Poly(caprolactone) diol Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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