Study on high flame retardant polyester polysulfone interwoven fabric

Study on high Flame retardant polyester polysulfone interwoven fabric
In order to prepare high flame retardant transport interior fabric, flame retardant polyester was used as warp yarn, flame retardant polyester / polysulfone fiber interlaced for weft. The influence of polysulfonamide content on flame retardancy and mechanical properties of fabrics was studied, and the best ratio of polyester and polysulfonamide was 1: 1. In order to further improve the performance of Flame retardant fabric, using nonionic polyurethane emulsion, ammonium polyphosphate, melamine, magnesium hydroxide as raw materials, a mixture of flame retardant coating adhesive according to a certain proportion, and the best ratio of flame retardant polyester / aramid fabric for flame retardant coating finishing; flame retardancy and mechanical properties of coated fabrics, and observe the combustion process of fabric.
The results showed that polysulfonamide increased the flame retardancy of the fabric, but reduced the mechanical properties of the fabric, and the maximum value of the limit oxygen index LOI reached 27. The flame retardant property of the fabric was further improved by the flame retardant coating adhesive. The maximum value of the limit oxygen index LOI was close to 29.5, and no smoke and droplet in the combustion. The best flame retardant technology: using flame retardant polyester warp, weft polysulphonamide, flame retardant coating glue dosage was 160g / m2 coating, rolling car pressure 0.3MPa, soaking time 0.5h, baking temperature 100, time 4min, baking temperature 170, time 3min. With the development of technology, people on the vehicle interior fabrics have become increasingly demanding, simple summed up in 4 aspects: has the function of more and more comfort; green health, environmental protection and Recyclable; higher security; the overall design and development of 1.
In addition to the requirements of the ordinary seat fabric, the EMU seat fabric needs good flame retardancy and mechanical properties. Polyester is favored by automobile manufacturers because of its high strength, high modulus, low moisture regain, poor flammability and corrosion resistance. The polyester fabric has stable size and good abrasion resistance. It has excellent UV resistance through special treatment. The car seat fabric 90% of the world's use is the use of a small amount of polyester fiber, polyamide fiber, mainly made of filament, textured yarn, POY and other forms of 4 to 8. But the limit oxygen index of ordinary polyester is only 22%, which is far from the requirement of high flame retardancy in the interior of the vehicle. In this study, in order to improve the flame retardant and mechanical properties of vehicle interior fabric, using flame retardant polyester warp and polyester / aramid yarn for weaving, of polysulfonamide fiber content on the flame retardancy and mechanical properties of woven fabric, and to determine the optimum ratio; in order to further improve the performance of high Flame retardant fabric, using non ion water polyurethane emulsion, ammonium polyphosphate, such as raw materials, compounded flame retardant coating adhesive system, to study the influence of resin content on flame retardant and mechanical properties of woven fabrics.
The research of the subject will provide a useful reference for the design and Performance Research of the material for the interior decoration of the vehicle. The 1 part of the 1.1 test of raw materials and equipment raw material: 75tex flame retardant polyester filament fabric, Jiangsu Kuangda automobile group Limited by Share Ltd; 20S / 2 aramid fiber, Shanghai Textile Science Research Institute and Shanghai Research Institute of synthetic fiber; cationic waterborne polyurethane emulsion (chemical), Shanghai serworld Chemical Co. Ltd.; ammonium polyphosphate (Hua Xuechun), Shandong province Dongying Jingdong Chemical Co. Ltd.; melamine (Hua Xuechun), Suzhou Sheng Hong Chemical Co. Ltd.; magnesium hydroxide, Qingdao Rong Tian Chemical Co. ltd.. Equipment: automatic rapier weaving machine (SU111), Wuxi Zhongyang mechanical and electrical limited company production; fabric tensile strength tester (YG026C - 300), Changzhou second textile machinery limited company production; scanning electron microscope (SU1510), Japan HITACHI company production; electrothermal blowing dry box (101A - 4S type), Nanjing Wohuan science and Technology Industrial Co. Ltd. production; pneumatic vertical padder (HD394A), Nantong Hongda experiment Co. Ltd.
Test content 1.2.1 flame retardancy performance. Referring to GB / T2406 93 "vertical burning oxygen index of fabric" [9] standard requirements, test the limit oxygen index LOI value of flame retardant coating fabric, observe droplet and smoke volume. The specimen is clamped on the specimen clamp and perpendicular to the combustion chamber, igniting the upper end of the sample in the upward flow of oxygen and nitrogen gas flow, observing its combustion characteristics, and comparing its continued combustion time or damage length with the prescribed limit value. By the test of a series of samples in different oxygen concentrations, the lowest oxygen concentration for maintaining the oxygen content at the time of combustion can be measured. The tensile properties of 1.2.2 are tested according to the standard requirements of GB / T3923.1 1997 "breaking strength and elongation at break of fabrics" (10). The ends of the specimens are clamped on the jaws of the tensile strength tester of the fabric. The spacing is 20mm (the elongation is less than 75%), and the drawing speed is 100mm / min, and the pretension is 0.5N.
Start the instrument until the sample is damaged, its record breaking strength and elongation. Scanning electron microscope (SEM) was used to observe the morphology of the burning residues of the flame retardant coating before and after finishing by 1.2.3SEM scanning electron microscope (SU1510). 2 samples are made of 2.1 polyester / polysulfone flame retardant fabric with flame retardant polyester fiber as warp, polysulfonamide and polyester as weft yarn.