Polypropylene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 9003-07-0 |
| Product name | Polypropylene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeElectronic GradeMaterial GradeCosmetic GradeFood Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| 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 Polypropylene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Polypropylene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Polypropylene
| Industry | Applications | Processing Methods |
|---|---|---|
| Packaging | Manufacturing food packaging bags, cling films, and containers | Injection molding, blow molding |
| Electronics & Electrical Appliances | Manufacturing appliance housings, junction boxes, and sockets | Injection molding, extrusion |
| Construction | Producing pipes, window and door profiles, and thermal insulation boards | Extrusion, injection molding |
| Automotive Manufacturing | Manufacturing interior components, bumpers, and instrument panels | Injection molding, extrusion |
| Textiles | Producing carpet fibers, nonwovens, and ropes | Melt spinning, nonwoven process |
| Healthcare | Manufacturing disposable syringes, IV bags, and medical packaging | Injection molding, blow molding |
| Agriculture | Manufacturing agricultural mulch films, irrigation pipes, and seedling trays | Extrusion, blow molding |
| Consumer Goods | Producing toys, household appliances, and daily-use items | Injection molding, extrusion |
Manufacturing Quality Control of Polypropylene
| Test Item | Common Test Method | Method Overview |
|---|---|---|
| Melt Flow Rate (MFR) | Melt Flow Rate Instrument Method (ASTM D1238 / ISO 1133) | Measures the mass of molten polypropylene passing through a standard die per unit time under specified temperature (typically 230°C) and load, used to evaluate material flowability and processability. |
| Density | Density Gradient Column Method / Immersion Method (ISO 1183) | Determines density by measuring the sample's floating position in a density gradient column or its mass in air and water, reflecting crystallinity and molecular structure. |
| Tensile Properties | Universal Material Testing Machine (ASTM D638 / ISO 527) | Measures tensile strength, elongation at break, and elastic modulus to assess mechanical performance. |
| Bending Properties | Three-Point Bending Test (ASTM D790 / ISO 178) | Determines flexural strength and flexural modulus to evaluate material behavior under bending loads. |
| Impact Strength | Cantilever Beam Impact Test (ISO 179) or Izod Impact Test (ASTM D256) | Measures the material's resistance to impact, distinguishing between brittle and ductile fracture behaviors. |
| Heat Deflection Temperature (HDT) | Heat Deflection Temperature Tester (ASTM D648 / ISO 75) | Measures the temperature at which a specimen deforms to a specified extent under a defined load, indicating the material's heat resistance. |
| Vicat Softening Temperature | Vicat Softening Point Apparatus (ISO 306 / ASTM D1525) | Determines the temperature at which a needle penetrates 1 mm into the specimen under specific conditions, used to evaluate heat resistance. |
| Crystallinity | Differential Scanning Calorimetry (DSC, ISO 11357) | Determines crystallinity by measuring melting enthalpy and comparing it with standard values, reflecting structural regularity and physical properties. |
| Infrared Spectroscopy | Fourier Transform Infrared Spectroscopy (FTIR, ASTM E1252) | Analyzes functional groups and chemical structure for identification of composition, degree of oxidation, and presence of additives. |
| Ash Content | High-Temperature Combustion Method (ASTM D563 / ISO 3451) | Burns the sample in a high-temperature muffle furnace until constant weight; the residue is the ash content, used to evaluate inorganic fillers or catalyst residues. |
| Volatile Content | Oven Weight Loss Method (ISO 15512) | Determines mass loss after drying the sample at a specified temperature to assess moisture and low-molecular-weight volatile substances. |
| Color Difference and Appearance | Colorimeter Measurement + Visual Inspection | Uses a colorimeter to measure L*a*b* values for color consistency; visual inspection checks for particle uniformity, black specks, impurities, etc. |
| Oxidative Induction Time (OIT) | DSC Oxidative Induction Time Test (ASTM D3895) | Measures the time before oxidative exothermic reaction begins under oxygen atmosphere, evaluating antioxidant stability and long-term aging resistance. |
| Molecular Weight Distribution | Gel Permeation Chromatography (GPC/SEC, ASTM D5296) | Measures polymer molecular weight and distribution (e.g., Mw, Mn, PDI), which influence processability and mechanical properties. |
Technical Specifications of Polypropylene
| Test Item | Specification |
|---|---|
| Appearance | White granular solid |
| Purity | >=98.5% |
| Melting Point | 160–170°C |
| Water Content (KF) | <=0.3% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Odor | Characteristic polymeric odor, no foreign 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 Polypropylene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Polypropylene
Industrial Polypropylene 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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