Processing process of environment-friendly sound insulation pad

A processing technology and sound-insulating pad technology, applied in the direction of adhesive additives, filament/wire forming, non-polymer adhesive additives, etc., can solve the problems of reducing the mechanical strength of fibers, reducing the density, and reducing the sound absorption effect. Achieve the effect of improving sound absorption capacity, reducing fiber density and maintaining mechanical strength
CN113306238AActive Publication Date: 2021-08-27芜湖尚唯汽车饰件有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
芜湖尚唯汽车饰件有限公司
Publication Date
2021-08-27

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Abstract

The invention discloses a processing process of an environment-friendly sound insulation pad. The processcomprises the steps of porous PET fiber spinning film forming, mesoporous fiber film spinning film forming and multilayer film compositing. PET fibers are made to present a porous morphology by changing condition parameters during electrostatic spinning, and nanoscale micropores in the PET fibers and micron-sized pores formed by interweaving the fibers form a two-stage pore mechanism, so that under the condition that the thickness of the material is not increased, the sound absorption capacity of the material is effectively improved; SiO2 aerogel is added into the colloid, so that pores in the fiber membrane can be effectively prevented from being densely filled with the colloid, and meanwhile, the pores can assist in silencing; by adding the mesoporous material with a porous structure in a proper proportion, not only can the fiber density be reduced and the silencing effect be improved, but also the mechanical strength of the fiber can be maintained, so that the porous PET fiber is reinforced after compounding, so that the composite film is not easy to break during use; and the sound attenuation performance of the compounded membrane material is higher than that of a single PET fiber membrane or a single mesoporous fiber membrane.
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Description

technical field

[0001] The invention relates to the field of sound-insulating non-woven fabrics, in particular to a processing technology of an environment-friendly sound-insulating pad. Background technique

[0002] Electrospinning is a method of charging and deforming a polymer solution or melt by means of a high-voltage electrostatic field, forming a pendant cone-shaped droplet at the end of the nozzle, when the charge repulsion on the surface of the droplet exceeds its surface tension, in the liquid Jets are formed on the surface of the droplet, and these jets are stretched at high speed by electric field force, solvent volatilization and solidification in a short distance, and finally deposited on the receiving plate to form polymer nanofibers. It mainly includes solution spinning and melt spinning. The development of melt spinning is limited by a series of problems such as the high temperature environment required in the production process and the diameter of the spun ...

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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