Thermal performance analysis of composite fabric for automobile seat
Thermal performance analysis of composite fabric for automobile seat Choose a car seat fabric made of polyester fabric and polyester sponge machine, thin cloth compounded by vertical burning test, 3 single component (layer of polyester fabric, sponge and cloth), 2 two layer composite components (composite sponge and cloth composite, layers of fabric and sponges) and 1 three layer composite components (layers of fabric, sponge and cloth compound) of the combustion performance, at the same time, the use of DSC TG to 6 kinds of fabric heat melting and thermal decomposition behavior of heat syndrome, and analyzed the changes of properties and thermal properties of different composite material combustion the. The results show that the fabric layer and the two layer of sponge composite fabric and fabric and fabric damage length three layers of fabric composite is obtained after the sponge and compared to the single component in the bottom is reduced, but the thermal stability of two layers, three layers of fabric rather than single-layer fabric. According to the Department of transportation, 2012, nearly.73 million T textiles of China's automobile industry, the average car consumes 10 ~ 15 kg fiber products, a mid-range car with 10 m2 and 8.5 M2 decorative fabric carpet fabric 1. China's automotive textiles market development is only 20 years, but its huge market potential is gradually emerging, relative to the profit of the textile industry, automotive textiles profit level is much higher than the average profit level of textile industry 2. Most of the automobile seat fabrics adopt flame compounding method, that is, single layer fabric, polyurethane sponge layer and thin base cloth are used as raw materials, and the flame laminating machine is compounded with 3. Although flame synthesis has some disadvantages, it is widely used because of its high yield, good washing resistance and improved fabric properties. Donghua University Jin Liang Ying 4, 5 speed, and composite burner technology of rolling distance and tension effect of the composite effect. Different fabric, sponge and base fabric also affect the final performance of fabric, but there is not much research in this field. In this paper, the combustion performance and thermal stability of 3 kinds of single layer fabric, 2 kinds of two layer fabric and 1 kinds of 3 layer fabric were studied by vertical combustion test, thermogravimetric analyzer and DSC. The 1 test materials, instruments and testing methods of 1.1 test material in this experiment Kuangda automobile seat fabric fabric Co. Ltd provides the base cloth, sponge, cloth (a layer of woven polyester fabric, pure polyester fabric, warp with two layer (bottom), the composite base cloth and sponge), black (two layer of the above-mentioned complexes black cloth and sponge), three layer (the black cloth, sponge, cloth compound) 6. The basic specifications of 6 kinds of fabrics are shown in test instruments and testing methods (1) test instruments. The main instruments used in this experiment is 209F1 type thermal analyzer (10 DEG C / min heating rate from 50 DEG to 600 DEG C), TM3000 DSC analyzer (room temperature to 300 degrees Celsius, the heating rate of 20 DEG /min), YG815B flame retardant fabric vertical tester (ignition time of 12 s). (2) test method. According to GB /T 5455 - 1977 "textile vertical combustion performance test method" on 6 kinds of fabric (including sponge) the continued burning time, smoldering time and damage length were tested. Rating criteria: B1 damage length is less than 15 cm, continued burning time of not more than 5 s, smoldering time is greater than 5 s; the B2 level for the damaged length is less than 20 cm, continued burning time is less than 10 s, the smoldering time is not more than 10. The thermal process of 6 kinds of fabrics (including sponge) was tested by differential thermal analysis, and the decomposition process of 6 kinds of fabrics (including sponge) was analyzed by thermogravimetry. 2 results and analysis of the vertical combustion performance of 2.1 car seat fabric, the vertical burning method was used to measure the firing time and damage length of the 6 fabrics in longitude and latitude direction, as shown in 2. Comparison of relevant data, the sponge and cloth composite process, sponge, cloth, the bottom two layer afterflame time is 0 s, the ignition time is over, the flame is removed, directly out; but the damage length, bottom fabric warp and weft damage length of around 15 cm, in the sponge 10 ~ 11cm, after the end of the two layer composite damage length is 10 ~ 11 cm, is close to the sponge. The burning time of the 3 fabrics is 0, because they are more melt in the ignition time, and the fabrics close to the flame are heated and melted, and the width of the melting zone is narrow and parabolic. A large area, not enough to make the fabric melting heat produced by the flame, and non combustion, and melting the length and the area is large, so that the flame in the ignition time has no access to the fabric outer flame. Therefore, when evaluating the combustion performance, the damage length of fabric is more referential. By comparing the damage length, it is concluded that the combustion performance of the bottom two layers is better than that of the base cloth after the combination of the base cloth and sponge, and the combustion performance of the sponge is similar to that of the sponge. The test shows: the ignition phenomenon after the end of time, there is the fabric on the flame; in continued burning time is less than 14 s, the main flame spread upward; with the increase of time, damage length increases, after 14 s, the flame becomes small, not to burn, but down the spread of the fire is small; increase with time, damage the length of almost no change. In combination with the shrinkage of sponge and base cloth, the damage length should be mainly based on the evaluation of the combustion performance of the fabric. Comparing the length of cloth, sponge, damaged black three layer 3 kinds of fabric, we can get the following conclusions: black cloth and sponge composite, flame retardant performance is improved; two black layer and the bottom cloth composite, damage length decreased slightly. According to the experimental phenomena, not on the back of material composite base cloth, fabric back above the damaged length, there are fire blackened and partial melting of relatively intact fabric; Composite cloth, this phenomenon
