Which of the following is used to manufacture thin carrier bags?
A.LDPE (Low Density Polyethylene)
B.HDPE (High Density Polyethylene)
C.Polycarbonate
D.PVC
Answers
Answered by
1
Answer:
B. HDPE (high density polyethylene)
Answered by
0
Answer:
For the manufacture of thin carrier bags, LDPE ( low density polyethylene) is used.
Therefore, the option (A) is correct.
Explanation:
- Low density polyethylene is formed by the free radical polymerization of ethylene.
- LDPE is manufactured by heating of pure ethylene to 463-483K temperature under a pressure of 1500atm in the presence of traces of oxygen.
- Free radical addition polymerization of ethylene is initiated by oxygen.
n CH₂=CH₂ → [-CH₂-CH₂-]ₙ
ethylene Polyethylene
- The polymer formed consists the highly branched chain molecules. The branches prevent the close packing. Therefore, they are low density.
- LDPE is chemically inert, flexible, tough and very poor conductor of electricity.
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