Preparation And Performance Evaluation Of Fabric With Thermal Regulation Function

With the continuous development of textile technology and living standards,consumers are increasingly demanding on the aesthetics and the comfort of fabrics.The comfort of clothing is a complex system,which contains many factors.And the thermal comfort of fabrics is one of the important factors affecting the comfort of the fabric,it has been valued and studied by researchers in recent years.In addition,dopamine with high adhesion,cationic agent which can make the fabrics' surface electropositive and MEPCMS are also widely used in the surface modification of materials.In this paper,fabrics has been prepared from physical construction and chemical modification.The thermal transfer performance were tested.The main work and contributions are as follows:(1)By using different raw materials and fabrics with different properties,laminated fabrics were obtained with hot-melt adhesives.The thermal retention rate and resistance of fabric had been tested.And the influence factors of thermal transfer were discussed.The thermal retention rate of fabric increases with the number of laminated layers.For the double-layer laminated fabrics,the thermal retention rate of the outer fabric is 70%.Laminated fabrics,which were prepared by laminating different raw materials,have different thermal insulation properties on fabric face and fabric back.For multi-layer fabrics,the thermal insulation performance of the laminated fabric with different raw materials is better than that of the laminated fabrics with the same single layer.In addition,the thermal resistance of the multi-layer fabric is slightly lower than the sum of the thermal resistance of the each single-layer fabric;(2)Dopamine(DA)was used to modify the cotton fabrics,and then,the MEPCMS fabrics modified with PDA had been made.And the thermal transfer properties of the fabrics had been tested.The results shows that self-polymerization of Dopamine(DA)occurred in Tris-HCl buffer solution,and Polydopamine(PDA)film was generated on the surface of the fiber Then,by using the MEPCMS to modify the PDA/Cotton fabric,MEPCMS can be dispersed in the surface of PDA/Cotton fabric evenly.The thickness of MEPCMS fabrics which were modified with PDA increases with the increase in concentration of MEPCMS,but the thermal retention ratio firstly increases and then decreases.And the air permeability decreases significantly.As the heating temperature rises,the temperature rising rate and surface temperature of MEPCMS fabrics modified with PDA are lower than that of cotton fabrics,as the temperature falls,the temperature decreasing rate of MEPCMS fabric modified with PDA is lower than that of cotton fabric,but the surface temperature is higher.The biggest difference in temperature is 2.4 ? and 1.9 ? respectively.(3)By using the cationic agent to modify of the cotton fabric,and then modifying the cationized cotton with PDA/MEPCMS finishing liquid,the cationized cotton modified with PDA/MEPCMS were prepared.And the thermal transfer properties were tested.The results shows that MEPCMS can be uniformly dispersed on the surface of the cationized cotton.After the modification,the thickness of the fabric increases with the increase in concentration of MEPCMS,but the thermal retention rate first increases and then decreases.The air permeability decreases significantly.As the heating temperature rises,the temperature rising rate and surface temperature of cationized cotton modified with PDA/MEPCMS are lower than that of cotton fabrics,as the temperature falls,the temperature decreasing rate is lower than that of cotton fabric,but the surface temperature is higher.The biggest difference in temperature is 5 ? and 1.1 ? respectively.