HDPE>>Cap
It is a linear polymer with high density (0.95–0.97 g/cm³) and high crystallinity (80–90%), exhibiting excellent rigidity (tensile strength > 30 MPa) and low creep resistance, ensuring no breakage during the spinning process. Its physical properties include a high melting point (130–135°C), a low melt index (2–4 g/10min, 230°C/2.16kg), and excellent wear resistance (abrasion loss < 40mg). Its chemical properties are resistant to strong acids, alkalis, organic solvents, and corrosive media (such as concentrated hydrochloric acid, ethanol), but it is not resistant to strong oxidants (such as fuming nitric acid) and high-temperature aromatic hydrocarbons (soluble in toluene at >100°C). For long-term outdoor use, it requires the addition of carbon black UV stabilizers to prevent photo-aging (content > 0.5%), and it exhibits excellent electrical insulation properties (volume resistivity > 10¹⁶ Ω·cm). It is specifically used for high-strength industrial woven bags, fishing nets, and cables.
- Parameters
It is a linear polymer with high density (0.95–0.97 g/cm³) and high crystallinity (80–90%), exhibiting excellent rigidity (tensile strength > 30 MPa) and low creep resistance, ensuring no breakage during the spinning process. Its physical properties include a high melting point (130–135°C), a low melt index (2–4 g/10min, 230°C/2.16kg), and excellent wear resistance (abrasion loss < 40mg). Its chemical properties are resistant to strong acids, alkalis, organic solvents, and corrosive media (such as concentrated hydrochloric acid, ethanol), but it is not resistant to strong oxidants (such as fuming nitric acid) and high-temperature aromatic hydrocarbons (soluble in toluene at >100°C). For long-term outdoor use, it requires the addition of carbon black UV stabilizers to prevent photo-aging (content > 0.5%), and it exhibits excellent electrical insulation properties (volume resistivity > 10¹⁶ Ω·cm). It is specifically used for high-strength industrial woven bags, fishing nets, and cables.
With its high rigidity, excellent sealing performance, and chemical resistance, it is primarily used for beverage bottle caps (such as mineral water and juice bottles), food packaging lids (such as sauce bottles and dairy products), and pharmaceutical bottle caps. Its high density (0.95–0.96 g/cm³) and pressure resistance (>1.5 MPa) ensure leak-proof sealing, while complying with FDA/EC food contact standards. Additionally, it possesses both easy-to-open and recyclable characteristics, making it a key component of liquid packaging containers.
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