Low-density polyethylene

（重定向自Low Density Polyethylene）

A GEECO bowl, c.1950, still used in 2014.

Low-density polyethylene (LDPE) is a thermoplastic made from the monomer ethylene. It was the first grade of polyethylene, produced in 1933 by Imperial Chemical Industries (ICI) using a high pressure process via free radical polymerization. Its manufacture employs the same method today. The EPA estimates 5.7% of LDPE (recycling number 4) is recycled. Despite competition from more modern polymers, LDPE continues to be an important plastic grade. In 2013 the worldwide LDPE market reached a volume of about US$33 billion.

单词	Low Density Polyethylene
释义	Low Density Polyethylene 原声例句 Crash Course 综合篇 Whereas this is much squishier, this is low density polyethylene. 虽然它更柔软，但它是低密度聚乙烯。英语百科 Low-density polyethylene （重定向自Low Density Polyethylene） Low-density polyethylene (LDPE) is a thermoplastic made from the monomer ethylene. It was the first grade of polyethylene, produced in 1933 by Imperial Chemical Industries (ICI) using a high pressure process via free radical polymerization. Its manufacture employs the same method today. The EPA estimates 5.7% of LDPE (recycling number 4) is recycled. Despite competition from more modern polymers, LDPE continues to be an important plastic grade. In 2013 the worldwide LDPE market reached a volume of about US$33 billion.
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