Polypropylene - High Performance Resin for Packaging and Industrial Applications
Polypropylene (PP) stands as a cornerstone of modern polymer engineering, offering an unparalleled blend of durability, flexibility, and cost efficiency. Designed to meet the rigorous demands of industries ranging from automotive manufacturing to advanced packaging systems, this high-performance thermoplastic combines innovative material science with practical adaptability. Whether creating lightweight automotive components, resilient chemical storage systems, or precision-molded consumer goods, polypropylene delivers consistent performance across extreme temperatures, harsh environments, and dynamic mechanical stresses.
Key Characteristics
1. Superior Cold Resistance
Polypropylene retains exceptional impact strength in sub-zero conditions, functioning reliably at temperatures as low as -30°C without brittleness. This makes it ideal for freezer-safe food packaging, cold-chain logistics containers, and automotive parts exposed to icy climates. Its low-temperature ductility (ISO 179 impact resistance >5 kJ/m²) ensures crack resistance even under thermal cycling.
2. Robust Heat Resistance
With a heat deflection temperature (HDT) of 100–120°C at 0.45 MPa (ISO 75), PP withstands sterilization processes, hot-fill packaging, and under-the-hood automotive applications. It maintains dimensional stability in dishwashers, industrial machinery, and engine components, resisting deformation at sustained high temperatures.
3. Unmatched Chemical Resistance
Polypropylene demonstrates exceptional resistance to acids, bases, solvents, and oils. It withstands prolonged exposure to concentrated hydrochloric acid (20%), sodium hydroxide (30%), and hydrocarbons without swelling or degradation, making it a prime choice for chemical tanks, laboratory equipment, and fuel system components.
4. Enhanced Wear Resistance
Through advanced polymer chain alignment, PP reduces abrasive wear by 35% compared to standard grades, excelling in conveyor components, gears, and industrial machinery parts subjected to continuous friction.
5. Stable Chemical Performance
The inert nature of polypropylene ensures no interaction with additives, dyes, or fillers. This guarantees UV stability in outdoor applications, FDA compliance for food contact, and consistent mechanical properties over decades of use.
6. Outstanding Electrical Properties
Boasting a dielectric strength of 25–30 kV/mm (IEC 60243) and volume resistivity exceeding 1×10¹⁶ Ω·cm, PP is widely used in cable insulation, circuit breakers, and high-frequency electrical components.
Cross-Industry Applications
Advanced Packaging Solutions
- Rigid Packaging: Microwave-safe containers, pharmaceutical bottles, and cosmetic jars with 120°C heat resistance
- Flexible Films: Biaxially oriented PP (BOPP) films for moisture-resistant snack wraps and retort pouches
- Sustainable Solutions: Lightweight recyclable packaging reducing transport emissions by 20%
Automotive Innovations
- Under-Hood Components: Air intake manifolds, battery casings, and coolant reservoirs leveraging chemical/thermal stability
- Interior Systems: Dashboard panels, door trims, and lightweight seat structures with Class A surface finish
- Living Hinges: Ultra-durable closures for glove boxes and console lids enduring >1 million flex cycles
Industrial & Construction Systems
- Chemical Piping: Corrosion-resistant pipes for acid waste drainage and potable water systems
- Textile Fibers: UV-stabilized fibers for outdoor carpets, geotextiles, and medical PPE
- Material Handling: Pallet containers, forklift components, and conveyor belts with high wear resistance
Consumer & Electrical Goods
- Appliances: Dishwasher-safe food containers, steam-resistant kitchenware, and vacuum cleaner parts
- Cable Insulation: Flame-retardant (UL94 V-2) jacketing for high-voltage power cables
- 3D Printing: Low-warpage filaments for functional prototypes and end-use parts
Processing Advantages
Optimized for injection molding, extrusion, and blow molding, polypropylene offers:
- Melt Flow Rate (MFR): 8–50 g/10 min (230°C/2.16 kg) for versatile processing
- Low Shrinkage: 1.5–2.5% (ISO 294-4) ensuring precision in complex molds
- Moisture Management: <0.01% water absorption eliminates pre-drying
Recommended Parameters:
- Melt Temp: 200–260°C
- Mold Temp: 20–80°C
- Injection Pressure: 500–1,400 bar
Sustainability & Compliance
- Closed-Loop Recyclability: Fully compatible with PP recycling streams (Resin ID #5)
- Regulatory Certifications: FDA 21 CFR 177.1520, EU 10/2011, RoHS, and REACH compliant
- Eco-Efficiency: 40% lower carbon footprint vs. engineering plastics like ABS
Competitive Advantages
- Cost Efficiency: 25–40% savings over PC/ABS blends with comparable strength
- Design Freedom: Enables wall thickness down to 0.3 mm for intricate geometries
- Longevity: Retains 90% tensile strength after 10-year outdoor exposure
- Multi-Sector Versatility: Single-material solution from medical devices to automotive systems
From ultra-hygienic food packaging requiring chemical inertness to high-stress automotive components demanding crash resilience, polypropylene delivers uncompromised performance. Its unique synergy of thermal resilience, mechanical robustness, and processing versatility makes it the material of choice for innovators balancing performance with sustainability.
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| Company Name | Beijing TDD E-commerce Co., Ltd | Country/Region | China |
| Business Type | Online Store | Company Size | 2000 |
| Established | December 18, 2014 | ||
| Address | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
| Main Products | PVC Resin , PP , PE , Pet , Titanium Dioxide , Pigment , Car Tire | ||
| International Commercial Terms(Incoterms): | FOB, CFR, CIF, FCA | ||
| Terms of Payment: | LC, T/T, D/P | ||
| Average Lead Time: | Peak Season Lead Time: one month, Off Season Lead Time: within 15 workdays | ||
| Number of Foreign Trading Staff: | 20~40 People | ||
| Main Markets: | Southeast Asia, Africa, Mid East | ||
| Nearest Port: | Tianjin,Qingdao,Shanghai | ||
| Import & Export Mode: | Have Own Export License | ||
About Beijing United Information Technology Co., Ltd.
Beijing United Information Technology Co., Ltd. (Stock Code: 603613. SH), founded in 2002 and listed on the Main Board in July 2019, is mainly engaged in industrial e-commerce and industrial Internet platforms. Based on industrial e-commerce and supported by industrial big data and industrial digitalization, the company provides online commodity trading, business information services and digital technology services of industrial products and raw materials for related industries. In terms of business model, it is called "the industrial version of Pinduoduo" and "the industrial version of JD.com".
About Beijing TDD E-commerce Co., Ltd.
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Beijing TDD E-commerce Co., Ltd. (shortly named TDD Global) is the core subsidiary of Guolian Corporation (Stock Code: 603613.SH) and the first industrial Internetplatform of Duoduo Series Platforms. The company mainly engages in B28 e-commerce transaction serices of raw material and industrial products, digital supply chain serices, industrial digitalization serices and industrial big data serices, and is committed to promoting the deep integration of traditional industries and new technologies such as the Internet, Internet of Things, big data, intelligent manufacturing and block chain, etc.
Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of quot&quality first, customer first and credit-based"Since the establishment of the company and always do our best to satisfy potential needs of our customers.
Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with an irresistible force. |
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Our Advantages:
Rich Experience-over 20 years in industry field
Ranges of products categories with quality guarantee
Competitive&Favourable price
7*24hours thoughtful pre-sale, on-sale, after-sale service
Overseas warehouse with all time delivery
Our services:
In order to better satisfy our customers worldwide and maintain regular customers. Our company takes raw material&industrial product B2B e-commerce transaction service, digital supply chain service, industry digitization service and industry data service as it′s primary business, focusing on promoting the deep integration between new technology and traditional industry, such as Internet, Internet of things, big data, intelligent manufacturing and blockchain.
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