Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (12): 35-41.doi: 10.13475/j.fzxb.20210800307

• Fiber Materials • Previous Articles     Next Articles

Preparation and properties of multilayer sound absorption materials based on waste polyphenylene sulfide filter materials

ZHANG Shucheng, XING Jian, XU Zhenzhen()   

  1. Anhui Province International Cooperation Research Center of Textile Structure Composite Materials, Anhui Polytechnic University, Wuhu, Anhui 241000
  • Received:2021-08-02 Revised:2022-08-30 Online:2022-12-15 Published:2023-01-06
  • Contact: XU Zhenzhen E-mail:xuzhenzhen@ahpu.edu.cn

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Abstract:

In order to recycle the waste polyphenylene sulfide(PPS)filter bag, it was treated by alkali washing, and then the multi-layer sound-absorbing composite material was prepared by combining the alkali washed filter bag and polyurethane (PU)film of different thickness and specification by hot air bonding and molding processing method. With scanning electron microscope, vertical combustion tester, electronic fabric strength machine and noise vibration test system, the morphological characteristics, flame retardancy, mechanical properties, sound absorption and insulation properties of PPS+PU+PPS and PPS+PU+PPS+PU+PPS were characterized. The results show that a small amount of dust particles remain on the surface of the alkali washed filter bag, but there was no trace of fiber damage and fracture. There were more pores between fibers, and the pores between composite fibers were reduced with a densified interior. Compared with the single-layer PPS filter material, the flame retardancy of the treated composite remained to be satisfactory. For the same structure, its mechanical properties were positively correlated with the thickness of PU film. For the two structures, The sound absorption coefficient shows the same change characteristics, and its size is negatively correlated with the film thickness, up to 0.27 in the high-frequency stage. However, the transmission loss is negatively correlated with the film thickness, and the PPS+PU+PPS+PU+PPS structure is up to 41 dB in the high-frequency stage.

Key words: waste PPS filter bag, alkali washing treatment, hot air bonding molding, multilayer sound absorbing composite, flame retardancy, mechanical property, sound absorption and insulation performance

CLC Number: 

  • TS155

Fig.1

Tensile property test sample specification"

Fig.2

Bursting property test sample specification"

Fig.3

SEM images of PPS filter bag and composite material. (a) Surface morphology of PPS filter bag(×200);(b) Surface morphology of composites(×100);(c) Section shape of PPS filter bag(×150);(d) Cross section morphology of composite materials(×35)"

Tab.1

Test results of flame retardancy of different materials"

试样 续燃时间/s 阴燃时间/s 损毁长度/mm
单层PPS滤袋 0.920 0.486 4.522
单层PU膜 3.112 1.868 19.362
3层试样 1.476 0.850 6.388
5层试样 1.182 0.780 5.688

Tab.2

Thickness test results of composite materials widifferent structuresmm"

试样 不同厚度PU膜下复合材料厚度
0.05 mm 0.1 mm 0.2 mm
3层试样 2.827 2.854 2.864
5层试样 4.258 4.310 4.318

Tab.3

Surface density test results of composite materials with different structureskg/m2"

试样 不同厚度PU膜下复合材料面密度
0.05 mm 0.1 mm 0.2 mm
3层试样 1.373 1.462 1.608
5层试样 2.172 2.286 2.482

Tab.4

Test results of longitudinal and latitudinal breaking strength of composite materials with different structureskN"

试样 不同厚度PU膜下复合材料断裂强力
0.05 mm 0.1 mm 0.2 mm
3层试样 纵向 0.251 5 0.252 5 0.261 7
横向 0.353 7 0.374 5 0.392 5
5层试样 纵向 0.503 7 0.511 0 0.520 6
横向 0.534 1 0.544 8 0.550 1

Tab.5

Data of longitudinal and latitudinal elongation at break of composites with different structures%"

试样 不同厚度PU膜下复合材料断裂伸长率
0.05 mm 0.1 mm 0.2 mm
3层试样 纵向 11.46 12.46 13.30
横向 19.40 20.02 20.74
5层试样 纵向 15.99 16.63 17.89
横向 20.56 21.06 22.60

Tab.6

Bursting strength test results of composite materials with different structureskN"

试样 不同厚度PU膜下复合材料顶破强力
0.05 mm 0.1 mm 0.2 mm
3层试样 1.0567 1.1238 1.1773
5层试样 1.5077 1.5943 1.7044

Tab.7

Test results of bursting deformation of composite materials with different structuresmm"

试样 不同厚度PU膜下复合材料顶破变形量
0.05 mm 0.1 mm 0.2 mm
3层试样 22.203 22.619 23.452
5层试样 22.349 22.818 25.534

Fig.4

Comparison of sound absorption properties of composite materials with different structures. (a) Single layer PPS, single layer PU film with different thickness;(b)PPS+PU+PPS;(c)PPS+PU+PPS+PU+PPS"

Fig.5

Comparison of sound insulation performance of composite materials with different structures. (a) Single layer PPS, single layer PU film with different thickness;(b)PPS+PU+PPS;(c)PPS+PU+PPS+PU+PPS"

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