Sign in
Menu
Sign in

High Density Polyethylene Rod Engineering Plastic Rod

3 week ago
0 0
Product details
High Density Polyethylene Rod Engineering Plastic Rod
 
Scientific Characteristics and Advantages Analysis
Molecular Structure and Basic Properties
HDPE's molecular chain is formed by the polymerization reaction of ethylene monomer (CH₂=CH₂). Its structural characteristics determine the core properties of HDPE  rod:
• High Crystallinity and Linear Structure: The molecular chains are densely packed and regular (crystallinity of 60%-80%, significantly higher than the 40%-60% of low-density polyethylene (LDPE)). The density is 0.94-0.97 g/cm³ (lower than ordinary plastics), giving the material lightness (weighing only 1/7-1/8 of steel of the same volume) and high rigidity.
• Non-polar Molecular Chain: The molecular chain contains no polar groups (such as hydroxyl or carboxyl groups), resulting in low surface energy (approximately 31 mN/m), a coefficient of friction of only 0.2-0.3 (compared to 0.3-0.4 for ordinary plastics such as PA6), and excellent self-lubrication.
 
Excellent Mechanical Properties
• High Toughness: Charpy notched impact strength ≥ 20 kJ/m² (ISO 179 standard, ≥ 15 kJ/m² maintained at -40°C), 2-3 times that of standard PP (8-15 kJ/m²), capable of withstanding everyday collisions and minor impacts (such as accidental drops of equipment components).
• High Tensile Strength: Tensile strength ≥ 20 MPa (ISO 527 standard), superior to LDPE (8-15 MPa), meeting most structural support or load-bearing requirements (such as auxiliary components for mechanical guide rails).
• Creep Resistance: Creep strain ≤ 5% (1000 hours) at 80°C and 1 MPa stress, superior to PP (≤ 8%), making it suitable for long-term load scenarios (such as chemical pipeline support racks).
100mm pe white rod1
hdpe rods
 
Excellent Physical and Chemical Properties
• Chemical Resistance: Stable against most acids (e.g., sulfuric acid and hydrochloric acid), alkalis (e.g., sodium hydroxide solution, concentration ≤ 50%), and saline solutions (tolerance to pH 1-14), making it an ideal material for chemical equipment exposed to corrosive media (e.g., acid storage tank linings and reactor supports).
• Temperature Resistance: Continuous operating temperature range of -60°C to +80°C (short-term temperature resistance up to 100°C), with a brittleness temperature as low as -100°C (common plastics such as PP have a brittleness temperature of -20°C to -50°C), making it suitable for use in extremely cold environments (e.g., seals for Arctic research equipment) or high-temperature sterilization applications (e.g., brief high-temperature treatment of food processing equipment).
• Electrical Insulation: Volume resistivity ≥ 10¹⁵ Ω·cm (ISO 3915 standard), dielectric constant 2.3 (at 1kHz), making it suitable for electrical insulation components (e.g., switch panels and cable sheathing).
 
Precision Processing and Dimensional Stability
• Processing Precision: Extrusion process diameter tolerance is ± 0.1 mm (common plastic rod ± 0.2 mm). Custom diameters range from 3 to 200 mm (to meet different industrial needs). Lengths can be cut to meet specific requirements (e.g., 1m, 2m, or custom lengths).
• Dimensional Stability: Water absorption is only 0.15% to 0.25% (common PP is 0.1% to 0.3%, but HDPE's dimensional changes after water absorption are more manageable). The linear thermal expansion coefficient is 8 × 10⁻⁵/°C (common PP is 1.2 × 10⁻⁴/°C), and is minimally affected by temperature fluctuations (tolerance control ± 0.02 mm). This makes it suitable for applications requiring high dimensional accuracy (e.g., precision instrument guide rails).
100mm pe white rod2
Polyethylene rod
 
Special Functionalities
• Self-lubrication: A low coefficient of friction (0.2-0.3) enables smooth sliding even without lubrication (e.g., conveyor guide rails, bearing bushings), reducing wear (service life 3-5 times longer than metal guide rails);
• Wear Resistance: Wear loss ≤ 0.1 cm³/(1.61 km) (ASTM D1044 standard), superior to ordinary PP (wear loss ≥ 0.5 cm³/(1.61 km)), making it suitable for high-friction applications (e.g., mining machinery components, logistics conveyor line rollers).
Bossgoovideo.com Contact Now

If you are interested in the product, contact Bossgoovideo.com for more information

*To:
Foshan Anheda New Material Co., Ltd
*Message:
Submit
Disclaimer :
The information of Bossgoovideo.com limited shown above is provided by the user or collected on the network. Video 2B does not guarantee the authenticity,accuracy and legitimacy of Bossgoovideo.com limited information. Video 2B does not involve legal relationships and disputes between users arising from transactions other than secured transactions on this website. Disputes shall be settled by you through negotiation. If you are the person in charge or relevant employee of this enterprise, if you find that the enterprise information is incorrect or want to manage thiscompany, please contact us jacklee1558@gmail.com, after you claim the enterprise, you can obtain management permission, publish supplyand demand information, bring consulting orders, and remove page advertisements.