Research On The Preparation Of Flame-retardant And Heat-insulating Protective Fabrics Using Functional Material Foam Coating

Fire is a frequent disaster event.In the fire environment,both the rescue work of firefighters and the escape and self-rescue of people in distress are inseparable from flame retardant and thermal insulation products.Although the fabrics based on highperformance fibers such as aramid fiber have good flame retardant and heat insulation properties,they are expensive.This is not conducive to the promotion of household fire equipment reserves,but also makes the cleaning and renewal of fire rescue clothing expensive.The development of low-cost fabrics with good flame retardant and thermal insulation properties,wearability and processing properties to replace expensive highperformance fiber fabrics is of positive significance for the popularization of firefighting equipment and reducing the cost of fire-fighting clothing.In this study,based on glass fiber fabric,viscoelastic materials,flame retardant functional materials and heat insulation functional materials were applied to glass fiber fabric by foam finishing to improve the processability and wearing properties of glass fiber fabric.ensure the flame retardancy and thermal stability of the fabric,improve the thermal protection performance of the fabric,prepare textile fabrics with excellent performance and low cost,and realize the low cost of fire-fighting fabrics.Based on fiberglass fabric,waterborne polyurethane as viscoelastic material,ammonium polyphosphate and pentaerythritol as flame retardant and inorganic nanomaterials such as aluminum hydroxide as flame retardant,the thermal protective functional fabric was prepared by foam finishing method,and the relationship between the application of viscoelastic material and the processability and comfort of fabric was investigated,and the amount of viscoelastic material was determined.On this basis,the relationship between the addition of flame retardants in viscoelastic materials and the flame retardancy,thermal stability and thermal protection properties of fabrics was studied,and the type and dosage of flame retardants were determined;Nano-aluminum hydroxide and silicon dioxide as flame retardant and heat insulating functional materials were modified by silane coupling agent and oleic acid to prepare inorganicorganic nanocomposites composed of nano-materials and viscoelastic materials.the effect of structural regulation of nano-functional materials on the bonding stability of functional materials and fibers was discussed to achieve uniform distribution and firm bonding on the surface of glass fibers.The relationship between the structure control of nano-functional materials and the thermal protection properties and comfort of fabrics was studied;The surface treatment of glass fiber was carried out by etching method,coupling method and loading method,the effect of surface treatment on the surface structure and morphology of glass fiber was investigated,and the relationship between surface treatment and thermal protection properties of fabric prepared by foam finishing was studied.the effect of surface treatment on the bonding fastness of fabric to polymer materials was evaluated.The results show that the thermal protection functional fabric based on glass fiber fabric,waterborne polyurethane as viscoelastic material,additive flame retardant and foam finishing method has good flame retardant effect(limiting oxygen index > 35%),thermal stability and thermal protection properties(g weight is less than aramid,but TPP value is higher than aramid).There is fastness between inorganic fiber,granular materials and organic materials in the fabric.Moreover,the fabric has soft,breathable and other comfort and good processability,which realizes the low-cost preparation of flame-retardant and heat-insulating fabric for fire protection.