Various performance testing of fire retardant fabric of automobile

Various performance testing of fire retardant fabric of automobile
The wear resistance of fabric is tested according to the GB / T21196.4 - 2007 test of the wear resistance of textiles, Marshall Dyer method, the fourth part: the evaluation of appearance change, to test the abrasion resistance of fabrics. The standard of fabric wear resistance test is: the size of the sample is 30cm * 10cm, and the 20 circles of the YG401C fabric leveling tester are 1 times and 8 times repeated. The wear resistance of the sample is shown when the specimen is damaged. 2.4 fabric pilling performance test using GB / T4802.1 2009 - "textile fabric pilling test circular track method" to test fabric pilling performance. The test method is to evaluate the pilling level of fabric under the condition of soft cushion and the number of nylon brushes prescribed times.
The tensile strength of fabrics is tested by GB / T3923.1 - 2013. The tensile properties of textile fabrics are divided into first parts: the determination of breaking strength and elongation at break (strip method), and the tensile strength of fabrics is tested. The test method is to clamp part of the sample into the clamp and stretch the sample at a constant elongation rate. The size of the sample is 30cm x 5cm. 3 results and discussion 3.1, the test results of flame retardancy and flame retardancy are: 1, 5, and the damaged length of fabric specimens is 30, 3.1, 18.6, 17.3 and 16.5cm respectively. The Flame retardant effect may be damaged by the damage length. By GB / T17591 - 2006 "Flame retardant fabric" shows that the general decorative cloth only needs to reach B2 level, the damaged length is less than or equal to 200mm, continued burning time is less than 15s, smoldering time less than 10s. The damage length of the ordinary polyester fiber is 30cm, and it does not have the effect of flame retardancy. The test results of 3, 4 and 5 samples show that the flame retardant effect becomes better with the increase of the flame retardant polyester fiber content.
However, the price of the flame retardant polyester fiber is two times that of the ordinary polyester fiber. From the point of view of saving cost, the best choice is to use the sample 3, namely polyester / flame-retardant polyester 50 / 50. The test results of air permeability of 3.2 materials with different air permeability are 2. The pressure of sample 1 ~ 7 is 200Pa.
The test results of 2 fabrics air permeability mm S1 project permeability of first time or 2 or 3 times the average value of 1 43.43743.29543.10143.6112 43.18743.80243.31643.7683 44.32142.34644.67243.7804 40.91245.81743.41043.3805 43.91542.90743.85343.5926 47.34045.67346.12346.3797 45.87153.04951.12150.013 consists of 2 shows that the different organizational structure of the fabric, its permeability is 7 satin fabric, No. 6 Twill fabric > 1 ~ 5 plain fabric. This is because the warp and weft lines of the plain fabric are interwoven with the most times, the yarn pores are small, and the air permeability is small. The interwoven fabric has a large gap between yarn and large air permeability, but the permeability of different fabric is very close, and the difference is small.
The test results of wear resistance of different fabrics with different wear resistance are 4. 4, the wear resistance test results of fabric are 4, and 3 plain plain fabric has the best wear resistance, because the interweave point of plain weave is the largest and the float length is the shortest. When leveling, it has strong anti slip ability, and the yarn wear length is short, and its wear resistance is good. No. 6 twill second, 7 satin fabric is the worst. The test results of fuzzing and pilling of pilling performance fabrics are: 1 ~ 5 are Grade 5, 6 and 7 are grade 4. The results show that the performance of the whole fabric is good, and the difference is not obvious. Pilling polyester fabric is not serious, on the other hand can also infer the wear resistance of polyester fabric is better than the wear resistance of the No. 6 No. 3 plain weave fabric twill, satin fabric No. 7. Test results of strong performance for different fabrics
Test results of the strength properties of fabric breaking strength and breaking elongation of the project / cN / mm / S /% elongation fracture time warp weft warp weft warp weft warp weft No. 1 1206925472446.824.429.915.92 232897382938.428.824.418.53 1281947433943.439.027.724.74 1261930373037.029.623.719.25 281915433342.832.627.320.86 1034749282827.827.818.720.37 998731252724.726.717.3 19.83, to the fabric tensile strength are greater than weft tensile strength, the tensile strength of plain weave No. 3, No. 6 of No. 7 satin twill, minimum.
This is because the more interlacing point of yarn is, the shorter the floating length is. When drawing, the tensile yarn is extruded by the non stretched yarn, and the tangential slip resistance between the warp and weft yarn increases, which helps to improve the fabric strength [12]. It is known in a comprehensive way