Sound-absorption needled non-woven composite and preparation method thereof
A composite material and non-woven technology, which is applied in non-woven fabrics, textiles and papermaking, chemical instruments and methods, etc., can solve the problems of unfavorable wide-scale application and low strength of sound-absorbing materials, and achieve light and thin strength and low production cost. , good sound absorption effect
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Example Embodiment
[0025] Example 1
[0026] The preparation method of the sound-absorbing needle punched non-woven composite material of this embodiment includes the following specific steps:
[0027] A. Using the existing opening, carding, and netting process disclosed in the 2010 master's thesis of Donghua University "Research on the Sound Absorption Properties of Composite Needle Punched Nonwovens", the porous polyester fiber is opened, carded and formed into a net. The porous polyester fiber uses 8.33dtex×64mm seven-hole polyester staple fiber produced by Sinopec Yizheng Chemical Fiber Co., Ltd.
[0028] B. The fiber web is fed into the needle punching machine for needling reinforcement, winding, and cutting to make two fabric samples. One fabric sample has a thickness of 10mm and an areal density of 55g / m 2 , The thickness of another cloth sample is 10mm and the areal density is 70g / m 2 . The total number of needles of the needle punching machine: 4800 needles, area 1.2m×0.3m, needle punching ...
Example Embodiment
[0031] Example 2
[0032] The preparation method of the sound-absorbing needle punched non-woven composite material of this embodiment includes the following specific steps:
[0033] A. Using the existing opening, carding, and netting process disclosed in the 2010 master's thesis of Donghua University "Research on the Sound Absorption Properties of Composite Needle Punched Nonwovens", the porous polyester fiber is opened, carded and formed into a net. The porous polyester fiber uses 8.33dtex×64mm seven-hole polyester staple fiber produced by Sinopec Yizheng Chemical Fiber Co., Ltd.
[0034] B. The fiber web is fed into the needle punching machine for needling reinforcement, winding, and cutting to make two fabric samples. One fabric sample has a thickness of 10mm and an areal density of 65g / m 2 , The thickness of another cloth sample is 10mm and the areal density is 50g / m 2 . The total number of needles of the needle punching machine: 4800 needles, area 1.2m×0.3m, needle punching ...
Example Embodiment
[0037] Example 3
[0038] The preparation method of the sound-absorbing needle-punched nonwoven composite material of this example is the same as in Example 1, except for the difference: the porous polyester fiber is made of 10.00dtex×60mm seven-hole polyester staple produced by Sinopec Yizheng Chemical Fiber Co., Ltd. fiber.
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