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HDPE is known for its
large strength to density ratio.[2] The mass density of high-density polyethylene can range from 0.93 to 0.97 g/cm3.[3] Although the density of HDPE is only
marginally higher than that of low-density polyethylene, HDPE has little branching, giving it stronger intermolecular forces and tensile strength than LDPE. The
difference in strength exceeds the difference in density, giving HDPE a higher specific strength.[4] It is also harder and more opaque and can withstand somewhat
higher temperatures (120 °C/ 248 °F for short periods, 110 °C /230 °F continuously). High-density polyethylene, unlike polypropylene, cannot withstand normally
required autoclaving conditions. The lack of branching is ensured by an appropriate choice of catalyst (e.g., Ziegler-Natta catalysts) and reaction conditions.
HDPE contains the chemical elements carbon and hydrogen.
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T: +27 836 122 807 | E: jannie@tjfittings.co.za
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Get in Touch with us today!
Do you have a question, are you interested in any of our services? Simply call/email or fill in our form so we may contact you!
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TJ Fittings We do it all, just let us know what you need!
|
HDPE is known for its
large strength to density ratio.[2] The mass density of high-density polyethylene can range from 0.93 to 0.97 g/cm3.[3]
Although the density of HDPE is only marginally higher than that of low-density polyethylene, HDPE has little branching,
giving it stronger intermolecular forces and tensile strength than LDPE. The difference in strength exceeds the difference
in density, giving HDPE a higher specific strength.[4] It is also harder and more opaque and can withstand somewhat higher
temperatures (120 °C/ 248 °F for short periods, 110 °C /230 °F continuously). High-density polyethylene, unlike
polypropylene, cannot withstand normally required autoclaving conditions. The lack of branching is ensured by an
appropriate choice of catalyst (e.g., Ziegler-Natta catalysts) and reaction conditions. HDPE
contains the chemical elements carbon and hydrogen.
|
|
T: +27 836 122 807
E: jannie@tjfittings.co.za
|
Get in Touch with us today!
Do you have a question, are you interested in any of our services? Simply call/email or fill in our form so we may contact you!
|