Question

Write 5disadvantages of polyethylene terephthalate

Answer 1

$\huge\tt\green{disadvantages\:of}$

$\huge\tt\green{polyethylene}$

$\huge\tt\green{terephthalate\:are}$

1. susceptible to heat degradation.
2. Excessive shear heat should be avoided.
3. therefore low screw speed and back pressure required.
4. It is not biodegradable.