MBS vs ACR vs ASA Impact Modifiers: What’s the Difference?
An impact modifier is a rubbery or elastomeric additive mixed into brittle polymers to increase their toughness, flexibility, and resistance to cracking or breaking under sudden impact. They generally use a core-shell structure, with the soft, rubber-like core absorbing impact energy and the outer shell promoting compatibility and dispersion within the polymer matrix. Among the most widely […]
What Causes Melt Fracture in Plastic Extrusion and How to Solve It
Melt fracture is an extrusion defect that produces rough, distorted, or irregular surfaces on plastic products. Depending on its severity, it may appear as fine “sharkskin” lines, repeating ridges, or severe twisting and distortion. These defects can reduce surface quality, affect dimensional consistency, and increase scrap rates. This article explains the main causes of melt […]
