عنوان مقاله [English]
Materials that respond dynamically to environmental irritants leading to various reaction signs are referred as smart materials. In recent years, due to changes developed in the physical, mechanical and geometrical properties of smart materials, extensive studies have been made on various applied external stimuli. The shape memory polymers are considered as a class of smart materials. These materials are transformed into temporary shapes by environmental irritants like chemicals, temperature, light and return to their original shapes. In the current study, the application of shape memory polymer on plain weft-knitted fabric has been studied. In the past, there have been studies focused on polymer coatings in relation to fabrics; in this research the effect of shape memory polymer is evaluated on fabric wrinkled by SMP coated yarn. To create a crease resistance, first, the yarn was coated with shape memory polymer. After curing, the produced yarn is knitted and its characteristics, such as crease recovery angle are evaluated. The results show that the shape memory polymer-treated yarn and fabrics respond effectively on crease recovery angle. The flexural properties of shape memory polymer-treated yarns and fabrics depend on consumer handling at different temperatures. By repeated deformations the shape memory fabrics remain stable.