Polypropylene Resin - Durable Resin for Industrial and Coating Applications
Product Overview
Polypropylene Resin (PP) is a versatile, semi-crystalline thermoplastic engineered to deliver exceptional durability, lightweight performance, and corrosion resistance across industrial and coating applications. With a melt flow index (MFI) range of 2–45 g/10min (230°C/2.16kg) and customizable copolymer/homopolymer grades, this resin combines >95% chemical inertness (pH 1–14), thermal stability up to 160°C, and low moisture absorption (<0.01%) for use in aggressive environments. Ideal for automotive under-the-hood components, corrosion-resistant tank linings, and powder coating additives, it offers 100% recyclability, FDA/EU food contact compliance, and halogen-free flame retardancy (UL94 V-0 achievable) to meet modern industrial sustainability goals.
Technical Specifications
|
Parameter |
Specification |
Test Method |
|---|---|---|
|
Melt Flow Index (MFI) |
2–45 g/10min |
ASTM D1238 |
|
Density |
0.895–0.925 g/cm³ |
ISO 1183 |
|
Tensile Strength |
25–38 MPa |
ASTM D638 |
|
Flexural Modulus |
1,200–1,700 MPa |
ISO 178 |
|
Impact Strength (Notched Izod) |
3–15 kJ/m² |
ASTM D256 |
|
Heat Deflection Temp (HDT) |
100–160°C (0.45 MPa) |
ISO 75 |
|
Coefficient of Linear Expansion |
8–10×10⁻⁵/°C |
ASTM D696 |
|
Dielectric Strength |
25–40 kV/mm |
IEC 60243 |
|
Water Absorption (24h) |
<0.01% |
ASTM D570 |
|
Flammability Rating |
UL94 HB/V-0 (modified grades) |
UL 94 |
|
FDA Compliance |
21 CFR 177.1520 |
FDA |
Core Performance Advantages
1. Chemical & Environmental Resistance
Broad pH Tolerance:
Exposure
Condition
Weight Change
98% H₂SO₄
7 days @ 25°C
<0.2%
50% NaOH
30 days @ 60°C
<0.1%
Chlorinated Solvents
24h immersion
<0.3%
UV Stabilization:
-
1,500h Xenon arc exposure: ΔE <2.0 (with 0.5% HAS additives).
-
2. Mechanical Robustness
Fatigue Resistance:
Cyclic Load
Stress (MPa)
Cycles to Failure
50% Yield Strength
18
>1×10⁶
70% Yield Strength
25
50,000
Low-Temperature Performance:
-
Ductile-to-brittle transition: -20°C (unmodified), -40°C (impact copolymer).
-
3. Sustainable Processing
Energy Efficiency:
Process
Energy Consumption (kWh/kg)
Injection Molding
0.8–1.2
Extrusion
0.6–1.0
Circular Economy:
-
Up to 30% post-consumer recycled content integration.
Regrind compatibility: 5 cycles without >15% property loss.
-
Advanced Polymer Engineering
1. Customizable Grades
Homopolymer (PP-H):
-
High crystallinity for stiffness: Flex modulus up to 1,700 MPa.
Applications: Automotive air ducts, chemical tanks.
-
Random Copolymer (PP-R):
-
Improved clarity (haze <10%) and impact resistance.
Applications: Transparent labware, medical devices.
-
Impact Copolymer (PP-ICP):
Property
PP-ICP
Standard PP
Notched Izod (23°C)
45 kJ/m²
3 kJ/m²
HDT @ 0.45 MPa
110°C
100°C
2. Additive Integration
Flame Retardancy:
-
Halogen-free systems (Mg(OH)₂/Al(OH)₃) achieve UL94 V-0 at 40% loading.
-
Conductive Fillers:
Filler Type
Surface Resistivity
Carbon Black (20%)
10³ Ω/sq
Carbon Fiber (15%)
10² Ω/sq
Application-Specific Solutions
1. Industrial Coatings
Corrosion-Resistant Linings:
-
Passes NACE TM0177 (30-day H₂S exposure).
Adhesion strength: ≥4 MPa (ASTM D4541).
-
Powder Coating Additives:
-
Reduces melt viscosity by 35% (ASTM D3835).
-
2. Automotive Components
Underhood Applications:
Requirement
Performance
Continuous Use Temp
135°C (PP-ICP)
Fuel Resistance
CE10 exposure: Δweight <0.5%
Battery Trays:
-
UL94 V-0 compliance with 0.8mm wall thickness.
-
3. Packaging Systems
Food-Grade Containers:
-
Migration limits: <0.01 mg/kg (EU 10/2011).
Sterilization resistance: 100 autoclave cycles.
-
Flexible Films:
Property
Value
Dart Drop Impact
500 g (ASTM D1709)
Oxygen Transmission
1,200 cc/m²/day (ASTM D3985)
Competitive Comparison
|
Property |
Polypropylene Resin |
HDPE |
ABS |
|---|---|---|---|
|
Chemical Resistance |
Superior (pH 1–14) |
Good (pH 3–10) |
Poor (solvent attack) |
|
Heat Resistance |
160°C (HDT) |
80°C |
95°C |
|
Density |
0.90 g/cm³ |
0.95 g/cm³ |
1.04 g/cm³ |
|
Recyclability |
100% (multiple cycles) |
80% |
Limited (<3 cycles) |
|
Cost Efficiency |
$1.50–2.20/kg |
$1.30–1.80/kg |
$2.50–3.50/kg |
Sustainability & Compliance
Certifications:
-
ISO 14001 Environmental Management.
REACH/SCIP compliant.
Halogen-free certification (IEC 61249-2-21).
-
Carbon Footprint:
Production Stage
CO₂ Emissions (kg/kg PP)
Cracker to Polymer
1.8
Post-Consumer Recycled
0.9
Packaging & Logistics
|
Form |
Packaging |
Features |
|---|---|---|
|
Pellets |
25 kg PE Bags |
UV-stabilized, moisture barrier |
|
Bulk |
1,000 kg Super Sacks |
RFID tracking enabled |
|
Regrind Flakes |
500 kg FIBC |
99.5% purity guaranteed |
Global Stock Availability:
Asia-Pacific: Singapore Hub – 5,000 MT/month.
Europe: Rotterdam Terminal – 3,500 MT/month.
Americas: Houston Depot – 2,800 MT/month.
Technical Support
Processing Optimization:
-
Melt flow simulation for injection molding gate design.
| Processing Parameter | Recommended Range |
|--------------------------|----------------------------|
| Melt Temperature | 200–260°C |
| Mold Temperature | 40–80°C |
| Injection Pressure | 70–120 MPa |
-
Troubleshooting:
Issue
Solution
Sink Marks
Increase packing pressure
Warpage
Optimize cooling channels
Brittle Parts
Add impact modifier
Conclusion
Polypropylene Resin sets the benchmark for cost-effective, high-performance thermoplastics in industrial and coating applications. Its unmatched chemical resistance, mechanical adaptability, and sustainable processing capabilities make it indispensable for automotive, packaging, and corrosion protection systems. With customizable grades (homopolymer, copolymer, impact-modified), additive compatibility, and global supply chain reliability, this resin empowers manufacturers to meet rigorous performance standards while advancing circular economy goals through 30% recycled content integration. Backed by ISO-certified production and technical expertise, it delivers a perfect balance of durability, lightweight design, and environmental responsibility.
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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.
|
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.
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