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Method and device for preparing two-component sound-absorbing cotton through electrostatic spinning-dry laying

An electrospinning and dry-laid technology, which is applied in the field of sound-absorbing cotton manufacturing, can solve problems such as general sound-absorbing performance, and achieve better thermal performance, sound-absorbing effects, and good sound-absorbing effects

Pending Publication Date: 2018-04-06
武汉每时工业发展有限公司 +1
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  • Summary
  • 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 two-component sound-absorbing cotton through electrostatic spinning-dry laying
  • Method and device for preparing two-component sound-absorbing cotton through electrostatic spinning-dry laying
  • Method and device for preparing two-component sound-absorbing cotton through electrostatic spinning-dry laying

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Embodiment Construction

[0030] 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.

[0031] A method for preparing two-component sound-absorbing cotton by electrospinning-dry method, comprising the following steps:

[0032] Step S1, compounding 20-80 parts by weight of electrospun nanofibers and 20-100 parts by weight of dry-laid fibers to obtain an electrospun-dry-laid bicomponent fiber web;

[0033] Step S2, using the electrospinning-dry-laid bicomponent fiber web to cross-laminate to the required square meter grammage, and then perform post-processing to obtain the finished sound-absorbing cotton.

[0034] The weight part of the electrospun nanofiber is 60, and the weight part of the dry-laid fiber is 40.

[0035] The step S1 specifically includes the following steps:

[0036] Step S1.1, prepar...

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Abstract

The invention relates to a method and device for preparing two-component sound-absorbing cotton through electrostatic spinning-dry laying. The method comprises the following steps that 1, 20-80 partsby weight of electrospun nanofibers and 20-100 parts by weight of dry fibers are composited to obtain an electrostatic spinning-dry laying two-component fiber net; 2, after the electrostatic spinning-dry laying two-component fiber net is utilized for cross laying till reaching the needed grams per square meter, post processing is conducted, and a finished sound-absorbing product is obtained. Accordingly, the two-component sound-absorbing cotton is prepared by compositing the electrospun nanofibers and the dry fibers; by means of the electrospun nanofibers of a nanostructure, the bore diameteris smaller, the porosity is larger, fibers close to the nanoscale can generate resonance with sound waves to attenuate energy, sound absorption is facilitated, more stagnant air is contained in sound-absorbing holes, and the thermal insulation property is better.

Description

technical field [0001] The invention relates to the field of sound-absorbing cotton production, in particular to a method and device for preparing two-component sound-absorbing cotton by electrostatic spinning-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 vehicles de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H1/72D04H5/00D04H5/08
CPCD04H1/4382D04H1/72D04H5/00D04H5/08D10B2331/301D10B2331/04D10B2331/10D10B2331/02D10B2321/022D10B2321/021D10B2201/24D10B2201/10D10B2201/02D10B2201/01D10B2101/12
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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