Which of the following are reasons why injection molding of thermosets is more difficult than injection molding of thermoplastics (two best answers):
A)allowances must be made for cross-linking of thermosets
B)barrel temperatures must be hotter for thermosets
C)cycle times are longer because of curing
D)thermosets are denser
E)two injection units are required

Question

Quizplus · Accepted Answer

Injection molding of thermosets is more challenging because allowances must be made for the cross-linking process (A), and cycle times are longer due to the need for curing (C).

Which of the Following Are Reasons Why Injection Molding of Thermosets