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A kind of sound-insulating and heat-insulating glass fiber felt with low bulk density and preparation method thereof

A glass fiber wool and glass fiber technology, which is applied in the field of low bulk density, sound insulation and heat insulation glass fiber wool felt and its preparation field, can solve the problem of no actual product, etc., achieve uniform performance protection, excellent sound absorption and heat preservation performance, and improve the aggregation phenomenon. Effect

Active Publication Date: 2017-11-24
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent mainly describes how to mix ingredients and prepare ultra-fine glass fibers. This patent is only for the preparation of raw cotton, which belongs to the upstream part of industrial products, and does not specify the actual product

Method used

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  • A kind of sound-insulating and heat-insulating glass fiber felt with low bulk density and preparation method thereof
  • A kind of sound-insulating and heat-insulating glass fiber felt with low bulk density and preparation method thereof

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Embodiment Construction

[0023] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications are within the limits of the appended claims of this application.

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] Embodiment, this embodiment is to introduce the production method of low bulk density sound-insulating and heat-insulating glass fiber felt. This embodiment according to figure 2 As shown, 10 is a kiln, 20 is a glass liquid, 30 is a bushing, 40 is a drawing fiber, 50 is a splitter, 60 is a rubber roller, 70 is a combustion chamber, 80 is a glass fiber cotton, and 90 is a sedimentation ...

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Abstract

The invention discloses a sound-insulating and heat-insulating glass fiber felt with low bulk density and a preparation method thereof, which is characterized in that it has a layered structure, 10-100 layers / cm, fiber diameter 0.05-2.5 μm, fiber length 1 mm-50 mm, thickness The proportion of direction penetrating fibers is 1-5%, the angle between the direction of fiber bundles in the felt and on the surface and the length direction of the felt is 1°-15°, the diameter of fiber bundles on the surface of the felt is 1mm-30mm, and the content of binder is 1%. ~20%, cotton felt thickness 1mm~40mm, area density 30g / m 2 ~300g / m 2 ; The preparation process includes melting of raw materials, wire drawing, combustion injection, cotton collection, solidification, cutting, packaging. The preparation process provided by the invention can prepare the glass fiber felt with a low bulk density, which has excellent sound insulation and heat preservation effects.

Description

technical field [0001] The invention relates to a sound-insulating and heat-insulating glass fiber felt and a preparation method thereof, in particular to a low-density sound-insulating and heat-insulating glass fiber felt and a preparation method thereof. Background technique [0002] Glass fiber felt has excellent thermal insulation and sound insulation performance, and is widely used in various industries, especially for the insulation and sound insulation of workshops, automobiles, high-speed rail and other interlayers. At present, the production of glass fiber is mainly prepared by centrifugal blowing process and flame blowing process. The diameter of the glass fiber prepared by the centrifugal blowing process is generally as large as 5-8 microns, and the bulk density of the cotton mat is not conducive to the demand for light insulation materials for high-end collars. At the same time, the larger fiber diameter leads to a higher thermal conductivity, which cannot obtain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4218D04H1/14D04H1/60C03B37/022
Inventor 陈照峰杨勇王伟伟吴操李艳明叶信立沙李丽管胜男郑青
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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