What Are The Easy Ways To Test The Flame Retardant Properties Of Flame Retardant Fabrics?

Here are a few easy ways to test the flame retardant properties of flame retardant fabrics. 1. Match test method The match test method can evaluate the flame retardant effect of the flame retardant cloth or the flame retardant performance of the relatively flame retardant fabric. Take about 2.5cm*30cm flame retardant cloth during the test, put the ignited matches under the sample, burn until the match is burned (or 5-12S), observe the burning condition or flame retardant effect of the flame retardant cloth sample. . It can be stipulated that the burning time of the flame-retardant cloth sample is not more than 5 seconds, and it is unqualified if the medium-line or smoldering time exceeds 15 seconds. This method is close to the vertical combustion method. 2, lighter test method flame retardant cloth sample size according to the test needs, the heat source is generally used a lighter, the time is generally 5S. The heat source is placed in close proximity to the application conditions. After the fire was extinguished, the flame spread of the flame-retardant cloth was observed, and the flame-retardant cloth with less serious spread was qualified. 3, ethanol combustion test method heat source is 0.3mL absolute ethanol, placed in a small beaker (cap can also be), flame retardant cloth test can be used vertical, horizontal or 45 ° tilt method, the distance between ethanol and flame retardant cloth, The measurement index can be determined according to requirements, such as carbon length, burning area, smoldering time, afterburning time, and combustion residue. 4. Tablet test method The flame-retardant cloth test was carried out using a hexamethylenetetramine tablet (made by powder pressing) with a mass of 150 mg and a diameter of 6 mm. If necessary, use a square metal plate (230mmx230mm, open a hole with a diameter of 205mm). During the test, place the tablet in the center of the flame-retardant cloth sample (300mmx300mm), gently touch the surface of the tablet with the ignited match, observe the ignited flame and burn it to extinction or flameless combustion to the edge of the hole in the metal plate as the test end point. . Use a ruler to measure the distance between the center of the flame-retardant cloth to the edge of the damaged area, and record the time when the tablet is ignited to flame or flameless combustion to the edge of the metal sheet. The method is applicable to the flame retardant fabric for paving, such as the evaluation of the heat and flame reaction performance of the carpet or the composite textile material, and can also be used as the observation and selection of the flame retardant effect and the test conditions in the process test. 5, hot metal nut method a stainless steel hex nut (30 ± 2g) in the electric furnace to 950 ° C, remove the nut with a crucible pliers, immediately placed in the flame retardant cloth sample (300mm * 300mm) Center, remove the nut after touching 30S. Measure the flaming burn time, smoldering time of the flame-retardant cloth, and the time required to record the screw width from the nut placement point to the ignition point to the edge of the pressure ring. This method is applicable to the testing of various paving flame retardant fabrics. Flame-retardant fabrics produced by textiles are mostly used in flame-retardant protective clothing, so if you want to use a simple method to test their flame retardant properties, you can use the match test method or the lighter test method.