Difference between LDPE and HDPE
Thermoplastics > Polyolefins > Polyethylene
Difference between LDPE and HDPE | |
The main difference between LDPE and HDPE is that the former is more flexible because the polymer chain has numerous branches with two or four carbon atoms, while in HDPE the chains that make them have almost no side chains, which makes them It allows to be more packed and therefore the polymer is more rigid. High Density Polyethylene (HDPE) Flexible but more rigid than LDPE. The natural color is milky white, semi-translucent according to the density. Good impact resistance and resistance to stress cracking. Good chemical resistance Good vapor barrier but poor barrier to gases. Sterilizable through EtO or gamma radiation. Low density polyethylene (LDPE) Very flexible, natural milky color, translucent with high impact resistance. Excellent for soft and strong shock absorbers, good chemical resistance. Good barrier properties of water vapor and alcohol. Bad gas barrier, sterilizable with EtO or gamma radiation. Good resistance to impact and stress cracks. Linear Low Density Polyethylene (LLDPE) Very flexible, natural milky color, translucent with high impact resistance. Excellent for soft and strong shock absorbers, good chemical resistance. Good barrier properties of water vapor and alcohol. Bad gas barrier, sterilizable with EtO or gamma radiation. Good resistance to impact and stress cracks. |