Two-component sound-absorbing cotton with super sound absorbing effect

A two-component, sound-absorbing cotton technology, applied in the field of sound-absorbing materials, can solve problems such as poor shockproof and heat insulation effects, difficulty in recycling sound-absorbing cotton scraps, and sound-absorbing effects that cannot meet expectations, so as to increase the aesthetic feeling, Strong decoration and light weight effect

Inactive Publication Date: 2017-11-24
HUBEI TIANYUN NOISE REDUCTION & ANTIVIBRATION NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PET polyester fiber is a chemical synthetic fiber with a high melting point (above 250°C) and is difficult to degrade, which makes the edge sealing mold temperature of traditional PET / PP two-component sound-absorbing cotton products high
At the same time, it is difficult to recycle PET / PP two-component sound-absorbing cotton scraps
[0004] The existing sound-absorbing felt for automobiles has sound-absorbing, fire-proof, shock-proof, heat-insulating, etc., but the sound-absorbing effect is still not up to the expected effect, and the shock-proof and heat-insulating effects are not very good, and the hardness is not enough, which directly affects the quality of the product. The service life, the radiation around the existing car is relatively large, it is easy to cause harm to the human body

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Two-component sound-absorbing cotton with super sound absorbing effect
  • Two-component sound-absorbing cotton with super sound absorbing effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see Figure 1-2 As shown, the present invention provides a technical solution: a two-component sound-absorbing cotton with super sound-absorbing effect, the two-component sound-absorbing cotton includes a main cotton core 1, an outer layer 2, a middle surface layer 3, an inner surface layer 4, Double-sided edge banding 5, circular through hole 6, square groove 7, three-pointed protrusion platform 8, sound-absorbing cavity 9, sound-absorbing conduit 10 and V-shaped sound-absorbing hole 11, the edge of the main body cotton core 1 is fixed and designed as Double-sided edge banding 5, two symmetrical circular through-holes 6 are fixedly arranged on the main body cotton core 1, a square groove 7 is opened in the upper center of the main body cotton core 1, and the main body cotton core 1 The lower side middle part is fixedly designed with a three-pointed raised platform 8.

[0028] Further, the internal structure of the main body cotton core 1 is designed with 2 outer layer...

Embodiment 2

[0043] A new type of sound-absorbing cotton for the inner panel of the channel. The difference between this embodiment and Embodiment 1 is that the middle surface layer 3 is made of plant fibers evenly laid and pressed.

[0044] Plant stalks or leaves are squeezed and dried to obtain white plant fibers, which have the same excellent sound-absorbing function as the polylactate plastic fiber layer.

Embodiment 3

[0046]A new type of channel inner panel sound-absorbing cotton, the difference between this embodiment and embodiment 1 is that the middle surface layer 3 is made of silicon rubber foam plastic material.

[0047] The silicone rubber plastic is dissolved into a liquid at high temperature and then cooled rapidly by inert gas. The interior contains a bubble structure to obtain a silicone rubber foam. The silicone rubber foam has the same excellent sound-absorbing function as the polylactate plastic fiber layer.

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Abstract

The invention discloses two-component sound-absorbing cotton with a super sound absorbing effect. The two-component sound-absorbing cotton comprises a main body cotton core, an outer surface layer, an intermediate surface layer, an inner surface layer, a double-sided sealing edge, circular penetrating holes, a square groove, a three-tip protrusion platform, sound absorbing cavities, sound absorbing guide pipes and V-shaped sound absorbing holes, wherein the edge part of the main body cotton core is fixedly designed into the double-sided sealing edge; the two symmetrical circular penetrating holes are fixed on the main body cotton core; the square groove is formed in the central position of the upper side of the main body cotton core; the three-tip protrusion platform is fixedly arranged at the middle position of the lower side of the main body cotton core. The two-component sound-absorbing cotton with the super sound absorbing effect, disclosed by the invention, has the advantages of reasonable material selection, scientific pressing forming, light weight, scientific material proportion, good sound absorbing effect and performance and high decorativeness; in addition, a folding cutting knife is convenient to process, so that the working efficiency of processing is improved; by using a green material, the pollution is reduced, an environment-friendly effect is improved, and the recycling of the sound-absorbing cotton is facilitated.

Description

technical field [0001] The invention relates to the technical field of sound-absorbing materials, in particular to a two-component sound-absorbing cotton with super sound-absorbing effect. Background technique [0002] Sound-absorbing cotton can be laminated with multiple layers of non-woven fabrics, or combined with other materials to make sound-absorbing and sound-insulating materials. Non-woven fabrics are oriented or randomly arranged textile short fibers or filaments to form a fiber network structure, showing many small gaps, which have adsorption function. Therefore, the sound-absorbing cotton can be set as a porous material with good sound-absorbing properties. 1. Sound insulation effect, sound-absorbing cotton is widely used as a cushion material in construction, electrical appliances, automobiles, machinery and other industries, mainly for sound insulation. [0003] With the progress of society and the continuous improvement of people's consumption level, customers...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/02B32B9/04B32B27/36B32B27/32
CPCB32B5/02B32B5/26B32B27/12B32B27/32B32B2262/0276B32B2262/065
Inventor 王皆晴何卫军李超李峰
Owner HUBEI TIANYUN NOISE REDUCTION & ANTIVIBRATION NEW MATERIAL
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