1. Product Overview
PP YM12 is a high-transparency polypropylene random copolymer developed by Shaanxi Yanchang Petroleum Yulin Energy Chemical Company. This grade leverages Milliken NX8000 fourth-generation clarifier technology to deliver exceptional optical clarity combined with a well-balanced stiffness-toughness profile.
YM12 belongs to the award-winning YM series of green energy-saving transparent polypropylene resins. The YM family won the 2025 Plastics Industry Ringier Technology Innovation Award for its outstanding performance and manufacturing innovation. Every experienced China polypropylene supplier recognizes the YM series as a benchmark in transparent PP technology.
2. Key Product Features
2.1 Exceptional Optical Clarity
YM12 achieves haze levels comparable to polyester-grade transparency, making it ideal for applications where product visibility directly influences consumer purchasing decisions. The NX8000 clarifier ensures consistent optical performance across production lots.
2.2 Excellent Stiffness-Toughness Balance
The grade delivers an optimized combination of rigidity and impact resistance that is difficult to achieve with conventional transparent PP. Finished parts resist cracking under load while maintaining dimensional stability.
2.3 Outstanding Processability
With a melt flow rate of 11 g/10 min at 230°C and 2.16 kg load, YM12 flows easily into complex mold geometries. It accommodates both injection molding and extrusion processes, and its wide processing window reduces rejection rates during production.
2.4 Energy-Efficient Manufacturing
YM12 is produced at extrusion temperatures approximately 20°C lower than conventional transparent PP grades. Across the entire YM series supply chain, this temperature reduction significantly lowers energy consumption and carbon footprint.
2.5 Wide Application Versatility
From high-end household items to medical syringes, YM12 covers a broad application spectrum. Its high flowability enables thin-wall injection molding while maintaining the transparency required for premium consumer products.
2.6 Consistent Lot-to-Lot Quality
Yulin Energy Chemical operates advanced Spheripol and Innovene PP process technologies under CNPC quality management. Rigorous QC protocols ensure that each production lot meets the same transparency, mechanical, and processing specifications.
3. Technical Specifications
| Property | Unit | Typical Value | Test Method |
|---|---|---|---|
| Melt Flow Rate (230°C / 2.16 kg) | g/10 min | 11 | GB/T 3682 / ISO 1133 |
| Density | g/cm³ | 0.90–0.91 | GB/T 1033 / ISO 1183 |
| Tensile Stress at Yield | MPa | ≥ 25 | GB/T 1040 / ISO 527 |
| Elongation at Break | % | ≥ 200 | GB/T 1040 / ISO 527 |
| Flexural Modulus | MPa | ≥ 1000 | GB/T 9341 / ISO 178 |
| IZOD Impact Strength (23°C) | kJ/m² | ≥ 6 | GB/T 1843 / ISO 180 |
| Haze (2 mm plaque) | % | ≤ 15 | GB/T 2410 / ASTM D1003 |
| Light Transmittance | % | ≥ 85 | GB/T 2410 |
| Vicat Softening Point | °C | ≥ 130 | GB/T 1633 / ISO 306 |
Note: Values are representative and may vary across production lots. The YM series also includes YM25, YM40DC, YM40UC, and YM40BUC to cover different MFR and application requirements.
4. Recommended Applications
4.1 High-End Household Items
YM12 is the material of choice for transparent storage containers, organizers, kitchenware, and decorative household products. The high clarity enhances shelf appeal, while the balanced mechanical properties ensure everyday durability.
4.2 Cosmetic and Daily Chemical Packaging
From cream jars and lotion bottles to compact cases and closures, YM12 provides the glass-like transparency that premium cosmetics brands require. The resin’s chemical resistance ensures compatibility with a wide range of formulations.
4.3 Medical Devices and Syringes
YM12 meets the stringent clarity and purity requirements of medical syringe barrels, specimen containers, and diagnostic device components. The controlled additive package supports compliance with medical-grade material standards.
4.4 Food Storage Containers
Transparent food storage boxes, microwaveable containers, and reusable lunch boxes benefit from YM12’s combination of clarity, heat resistance, and food-contact compliance.
4.5 Thin-Wall Injection Molded Packaging
The MFR of 11 enables fast filling of thin-wall molds for transparent packaging tubs, cups, lids, and disposable containers. High productivity combined with excellent clarity makes YM12 a cost-effective choice for high-volume packaging.
4.6 Extrusion Applications
Beyond injection molding, YM12 adapts well to extrusion processes for transparent sheet, profile, and tubing applications where optical clarity and surface finish are critical requirements.
5. Processing Guidelines
YM12 is designed for injection molding and extrusion processes. Recommended starting parameters are as follows:
| Parameter | Recommended Range |
|---|---|
| Barrel Temperature | 190–230 °C |
| Nozzle Temperature | 200–220 °C |
| Mold Temperature | 20–50 °C |
| Injection Pressure | 60–100 MPa |
| Holding Pressure | 40–70 MPa |
| Cooling Time | 15–30 seconds (part-dependent) |
| Screw Speed | 50–100 rpm |
For optimal transparency, maintain consistent melt temperature and avoid excessive residence time in the barrel. Pre-drying at 80°C for 2 hours is recommended if the resin has been exposed to humid conditions.
6. Packaging and Logistics
| Item | Detail |
|---|---|
| Packaging | 25 kg net PP woven bag with inner PE liner |
| Palletization | 55 bags per pallet (1375 kg), stretch-wrapped |
| Container Loading | 18–20 MT per 20-foot container (without pallets) |
| HS Code | 3902.10.0090 |
| Origin | Yulin, Shaanxi Province, China |
| Manufacturer | Shaanxi Yanchang Petroleum Yulin Energy Chemical |
| Brand | Yanchang (延长石油) |
| Minimum Order Quantity | 1 × 20′ FCL (approx. 18 MT) |
| Lead Time | 7–15 days from order confirmation |
7. The YM Series Product Family
YM12 is part of a growing portfolio of transparent polypropylene grades from Yulin Energy Chemical. Understanding the full product range helps buyers select the optimal grade.
| Grade | MFR (g/10 min) | Characteristics |
|---|---|---|
| YM12 | 11 | Balanced flow, general-purpose transparency |
| YM25 | 25 | Higher flow for thin-wall injection |
| YM40DC | 40 | Ultra-high flow, low haze |
| YM40UC | 40 | Ultra-clear, near-polyester transparency |
| YM40BUC | 40 | Ultra-clear, enhanced stiffness |
For converters requiring higher flowability for fast-cycle thin-wall molding, YM25 or YM40 grades are recommended. For applications demanding the highest possible clarity, YM40UC delivers near-polyester visual performance.
8. Why Source YM12 Through a Reliable China Polypropylene Supplier
Yulin Energy Chemical is a joint venture between Yanchang Petroleum Group and China Coal Energy, operating one of China’s most advanced polyolefin production complexes. The facility integrates coal, oil, and gas feedstocks with Spheripol and Innovene process technologies for world-class PP production.
A knowledgeable China polypropylene supplier provides direct access to fresh YM12 production lots with full traceability to manufacturer certificates. Beyond product delivery, a committed supplier offers technical guidance on grade selection across the YM series family, logistics coordination from factory to port, and consistent pricing even during market fluctuations.
For converters seeking a transparent PP grade that combines award-winning clarity technology with reliable Asian supply, YM12 delivers measurable value.
9. Frequently Asked Questions
Q: How does YM12 compare with traditional transparent PP grades?
A: YM12 uses NX8000 clarifier technology and an energy-efficient production process that achieves superior transparency at lower extrusion temperatures. Compared with traditional nucleated transparent PP, YM12 offers improved haze performance and better stiffness-toughness balance.
Q: Is YM12 a random copolymer or homopolymer?
A: YM12 is a polypropylene random copolymer (PPR) specifically formulated for high transparency applications. The comonomer modification combined with the NX8000 clarifier achieves optical clarity approaching that of amorphous polymers.
Q: Can YM12 be used for food-contact applications?
A: Yes, YM12 complies with relevant Chinese national standards for food-contact materials. End-users should verify compliance with their local food-contact regulations for the specific finished article.
Q: What is the difference between YM12 and YM25?
A: The primary difference is melt flow rate — YM12 has an MFR of ~11 while YM25 has an MFR of ~25. YM25 is better suited for thin-wall, high-speed injection molding, while YM12 offers a wider processing margin for general-purpose transparent applications.
Q: Does YM12 require special drying before processing?
A: Under normal dry storage conditions, YM12 can be processed without pre-drying. If moisture absorption is suspected, dry at 80°C for 2 hours. Avoid excessive drying temperatures that may cause discoloration.
