Purpose of the experiment: To understand the differences in the combustion performance of different textiles and to evaluate their safety.
Experimental materials: cotton fabrics, polyester fabrics, nylon fabrics, wool fabrics, silk fabrics.
Experimental equipment: horizontal combustion tester, xenon lamp aging test chamber, microscope.
experimental method:
1. Xenon arc aging test: Put different textile samples into the xenon arc aging test chamber for aging treatment. The aging time is 48 hours.
2. Horizontal burning test: put different textile samples into the horizontal burning tester for burning test. The test time is 10 seconds.
3. Microscope observation: Put the burned sample into the microscope to observe the burning traces.
Experimental results:
1. Cotton fabrics: In the horizontal combustion test, cotton fabrics burn for a long time, and there are obvious smoke and flames during the burning process, but the fire is not strong, and the traces left after burning are small. In the xenon lamp aging test, the burning time of cotton fabrics was slightly shortened after aging treatment, but the overall performance did not change significantly.
2. Polyester fabric: In the horizontal burning test, the burning time of polyester fabric is shorter, the fire intensity is larger, and the trace left after burning is larger. In the xenon lamp aging test, the burning time of polyester fabrics was shortened after aging treatment, and the marks left after burning were also larger.
3. Nylon fabric: In the horizontal burning test, nylon fabric burns for a longer time, with a smaller fire intensity and less traces left after burning. In the xenon lamp aging test, the burning time of nylon fabrics was slightly shortened after aging treatment, but the overall performance did not change significantly.
4. Wool fabrics: In the horizontal burning test, woolen fabrics burn for a longer period of time, with a smaller fire intensity and smaller burn marks. In the xenon arc aging test, the burning time of wool fabrics was slightly shortened after aging treatment, but the overall performance did not change significantly.
5. Silk fabrics: In the horizontal combustion test, silk fabrics burn for a longer period of time, with a smaller fire intensity and less traces left after burning. In the xenon lamp aging test, the burning time of silk fabrics was slightly shortened after aging treatment, but the overall performance did not change significantly.
Experimental conclusion: Judging from the burning time, fire intensity and traces left after burning, there are differences in the burning performance of different textiles. Cotton fabrics, wool fabrics and silk fabrics have better combustion performance, longer burning time, smaller fire intensity, and smaller traces left after burning; while polyester fabrics have poorer burning performance, shorter burning time, larger fire intensity, and less burning marks. The traces left behind are larger. The combustion performance of nylon fabrics is comparable to that of cotton, wool and silk fabrics. On the whole, the combustion performance of cotton fabrics, wool fabrics and silk fabrics is safer and more reliable.