Wideband underwater acoustic absorption and transmission material and preparation method thereof
A sound-transmitting material and wide-band technology, applied in the field of underwater acoustic materials, can solve problems such as single function, and achieve the effect of excellent physical and mechanical properties
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Embodiment 1
[0029] The parts by weight of the various components of the material are shown in Table 2 in the present embodiment:
[0030] Table 2 The parts by weight of the various components of the material of embodiment 1
[0031] Material
Sound-permeable layer (parts)
Sound-absorbing layer (parts)
Chlorobutyl rubber
100
100
High wear-resistant carbon black
40
20
10
10
5
5
20
20
10
10
Antiager D
1.5
1.5
Accelerator TMTD
1
1
2
2
-
2
[0032] The preparation method is as follows:
[0033] Mastication: Firstly, the chlorinated butyl rubber is thinned and masticated on an open mill for 5 minutes. After mastication, it is parked for 24 hours for mixing.
[0034] Mixing of the sound-transmitting layer: The mixing of ru...
Embodiment 2
[0044] Others are the same as embodiment 1. But the parts by weight of the various components of the material are shown in Table 3:
[0045] Table 3 The parts by weight of the various components of the material of embodiment 2
[0046] Material
[0047] iron powder
[0048] According to the test method stipulated in GB / T 14369-1993, the acoustic performance of the material is tested in the anechoic pool, and the results are shown in Figure 4 and Figure 5 .
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