Question

Curable formulations have the "impossible" problem of shelf stability while permitting.cure at room or moderately elevated temperatures. Which of the following is NOT an effective strategy for increasing formulation stability? A. Radiation activated crosslinking reactions OB Thermally released Blocked reactant by a unimolecular reaction C. Use of a volatile inhibitor in the formulation OD. Water vapor catalyzed crosslinking reactions

Answer 1

Water vapor catalyzed crosslinking reaction is NOT an effective strategy for increasing formulation stability.

Explanation: The amount of blowing agent and the crosslinked density determine the final foam structure. The advantage of using radiation processing is that one has a more robust process in that blowing agents will not be activated until after crosslinking which enables control of foam density and micelle size.