Method and device for preparing three-component sound-absorption cotton through electrostatic spinning-melt blowing-dry laying

A dry-laid and electrospinning technology is applied in the field of sound-absorbing cotton, which can solve the problems of general sound-absorbing performance, achieve better thermal insulation performance, good sound-absorbing effect, and prevent heat loss.

Pending Publication Date: 2018-02-09
武汉每时工业发展有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the more common sound-absorbing cotton on the market is single-component PET felt. The traditional PET felt is made by dry-laid method. Its fiber diameter is about 15-35μm, and its sound-absorbing performance is average.

Method used

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  • Method and device for preparing three-component sound-absorption cotton through electrostatic spinning-melt blowing-dry laying
  • Method and device for preparing three-component sound-absorption cotton through electrostatic spinning-melt blowing-dry laying
  • Method and device for preparing three-component sound-absorption cotton through electrostatic spinning-melt blowing-dry laying

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Embodiment Construction

[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0034] The method for preparing three-component sound-absorbing cotton by electrospinning-melt blowing-dry method, comprises the following steps:

[0035] Step S1, compounding 10-65 parts by weight of electrospun nanofibers, 10-65 parts by weight of melt-blown ultrafine fibers and 10-40 parts by weight of dry-laid fibers to obtain electrospinning-melt-blown-dry-laid webs three-component fiber web;

[0036] The step S1 specifically includes the following steps:

[0037] Step S1.1, preparing melt-blown ultrafine fibers;

[0038] Step S1.2. Opening, carding, and forming a dry-laid fiber to form a dry-laid fiber web, and then feeding it into the melt-blown ultrafine fiber under the action of the air flow to obtain a m...

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Abstract

The invention relates to a method and device for preparing three-component sound-absorption cotton through electrostatic spinning-melt blowing-dry laying. The method includes the following steps of firstly, mixing 10-65 parts by weight of electrostatic spinning nanofiber, 10-65 parts by weight of melt blowing superfine fiber and 10-40 parts by weight of dry fiber to obtain an electrostatic spinning-melt blowing-dry laying three-component fiber net; secondly, conducting processing after required grams per square meter of net is laid in a crossed mode to obtain the finished sound-absorption cotton product. The electrostatic spinning nanofiber, melt blowing superfine fiber and dry fiber are combined to prepare the three-component sound-absorption cotton, the obtained sound-absorption cotton has nano-scale electrostatic spinning fiber, micron-scale melt blowing fiber and thick dry staple fiber of different fineness degrees, the porosity of the sound-absorption cotton is larger due to the electrostatic spinning fiber of a nanometer structure, the fiber close to nanoscale can resonate with sound waves so as to attenuate energy, and the all-frequency sound absorption effect can be enhanced by reasonably configuring through three types of fibers of different fineness degrees.

Description

technical field [0001] The invention relates to the field of sound-absorbing cotton production, in particular to a method and device for preparing three-component sound-absorbing cotton by electrospinning-meltblowing-dry-forming. Background technique [0002] At present, the more common sound-absorbing cotton on the market is single-component PET felt. The traditional PET felt is made by dry-laid method. Its fiber diameter is about 15-35 μm, and its sound-absorbing performance is average. At present, many scholars and companies are devoting themselves to the development of new materials, and various countries are conducting research on non-woven fabrics so that they can play a greater role in the process of sound absorption and noise reduction in automobiles. Manufacturers of medium and high-end vehicles pay more attention to the use of new high-efficiency materials. For example, the polyester / polypropylene fiber Thinsulate thinsulate series noise-reducing material for vehi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H1/732D04H1/74
CPCD04H1/4382D04H1/732D04H1/74
Inventor 邹汉涛王冰张秦川张翼李伟
Owner 武汉每时工业发展有限公司
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