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Distinguish between polypropylene and nylon carpet carpet
发布时间：2015-10-28 点击次数：
Not all the carpet after extrusion has the same stretch back, and this can be used as a contrast to distinguish the stand or fall of carpet.Look carefully on market now there are many kinds of carpet, and the commonly used carpet material with nylon and pp.That if you want to quickly distinguish nylon carpet and polypropylene fiber carpet, there are two methods:
The proportion of the first test: nylon proportion is greater than the water, and polypropylene fiber is less than the water.Cut pile material in a glass of water, sinking is floating on the surface of the nylon is polypropylene.
The second is the melting point measurement, is about 160 ° C, the melting point of polypropylene and nylon 6 and nylon 6, 6 the melting point of 220 ° C and 260 ° C, respectively.With a dry iron placed in a carpet surface to test, then through the pp carpet carpet surface after the dry iron very hot place will leave a iron printing and nylon carpet is the same.Why is this?Because the nylon carpet has good elasticity and recovery is strong.Nylon carpet is in after heavy objects collapsing the restorable ability is 80-90%, and the polypropylene fiber is less than 30%.So this time the difference between nylon carpet and polypropylene carpet is obvious.The test also shows a problem, is the fire safety performance.Nylon carpet is tested in accordance with the current national standard "fire fire retardant coating performance test method and classification standard", that is to say, nylon carpet achieve B1 level of national standard.As interior decoration material, on the fire requirement, in all points A, B1, B2 level!In fire control requirements, top surface decoration materials must be class A fire, metope, ground decoration materials must be B1 level fire!