Preparation method of flame-resistant aging-resistant sound-absorbing cotton

A sound-absorbing cotton and anti-aging technology, which is applied in the field of preparation of flame-retardant and aging-resistant sound-absorbing cotton, can solve the problems of poor durability, poor sound-absorbing effect of sound-absorbing cotton, and poor aging resistance, so as to enhance the sound-absorbing effect and improve the mechanical strength and the effect of increasing the aging resistance and roughness

Inactive Publication Date: 2019-06-14
谭桂容
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the defects of poor sound-absorbing effect, poor durability and poor aging resistance of the current sound-absorbing cotton, a preparation method of flame-retardant and aging-resistant sound-absorbing cotton is provided

Method used

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Examples

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preparation example Construction

[0027] Preparation of the mixed solution: put corn leaves and corn stalks into an oven at a mass ratio of 5:1, and let stand for 2 hours at a temperature of 105°C to obtain a dry mixture, then mix the dry mixture with 12% hydrochloric acid by The mass ratio of 2:5 was put into the beaker, and the stirring device was mixed and stirred at a speed of 400r / min for 3h to prepare a mixed solution.

[0028] Preparation of modified slurry: Add aluminum chloride solution of 5% of the mixed solution mass dropwise to the above-mentioned beaker, place the beaker in an ultrasonic oscillator, and ultrasonically vibrate for 3 hours at a frequency of 32kHz to prepare a mixed slurry, pour it into the beaker Add nickel powder with a mass of 6% of the mixed slurry, and mix and stir for 50 minutes with a stirrer at a speed of 400 r / min to prepare a modified slurry.

[0029] Preparation of the mixed glue solution: filter the above modified slurry to obtain a filter cake, wash the filter cake with di...

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Abstract

The invention relates to a preparation method of a flame-resistant aging-resistant sound-absorbing cotton, and belongs to the technical field of sound absorbing material. According to the preparationmethod, corn leaf and stalk are taken as raw materials so as to obtain a filter cake; the filter cake is mixed with tetraethyl orthosilicate, ammoniacal liquor is added dropwise so as to obtain a reaction product, calcining is carried out, and an obtained prefabricated product is grinded, and at last, the prefabricated product, an organic compound, fiber, and other auxiliary agents are subjected to mixing hot pressing and drying so as to obtain the flame-resistant aging-resistant sound-absorbing cotton. According to the preparation method, an acid solution is adopted for immersion separation of fiber molecules, so that fiber surface roughness is increased, fiber tubes and fiber apertures are filled with aluminium element, sound-absorbing cotton mechanical strength and aging resistance areimproved; plant fiber and tetraethyl orthosilicate are mixed, so that growth of silica on plant fiber surface is realized; utilization of the stability and the rigidity of silica is capable of improving the mechanical strength, the flame resistance, and the endurance of sound-absorbing cotton obviously, and the application prospect is promising.

Description

technical field [0001] The invention relates to a method for preparing flame-retardant and aging-resistant sound-absorbing cotton, which belongs to the technical field of sound-absorbing material preparation. Background technique [0002] In recent years, with the development of the economy, the problem of noise pollution has also been exacerbated. Noise seriously affects the normal life and human health of residents. Noise pollution has become the main environmental pollution that has attracted worldwide attention after water pollution and air pollution. one of the problems. There are many kinds of noise pollution. We are already in the ocean of noise pollution, and the control of noise pollution is urgent. [0003] The use of sound-absorbing and sound-insulating materials for sound insulation and noise reduction is a common means of controlling noise pollution. In recent years, porous sound-absorbing materials have been widely used in the field of sound-absorbing. Sound...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L1/02C08L97/02C08L33/26C08K3/08C08K3/36
Inventor 谭桂容
Owner 谭桂容
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