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Sound and heat insulation glass filter cotton felt

A technology of glass fiber wool and glass fiber, which is applied in fiber processing, textiles, papermaking, non-woven fabrics, etc. It can solve the performance impact of glass wool felt, can not achieve the effect of heat insulation and sound insulation, and the layering effect of glass wool felt is not good, etc. question

Inactive Publication Date: 2018-11-30
重庆纤维研究设计院股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the relatively thick fiber diameters currently used to prepare glass wool felts, usually more than 7 μm, and the layering effect of glass wool felts is not good, usually in a state of overlapping, so that the performance of glass wool felts is greatly affected. Affected, can not achieve good heat insulation and sound insulation effect

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A sound-insulating and heat-insulating glass fiber felt. The diameter of the superfine high-silica glass fiber in the glass fiber felt is normally distributed between 1.5-3.0 μm, and the content of silicon oxide is 96.5%. The resin in the cotton felt is The content of the binder is 15%, and the thickness of the cured resin binder is 0.05 μm. The distance between the middle layer and the layer of the cotton felt is 30 μm, and its porosity is 98%. The thermal conductivity of the cotton felt is 0.02W / m·K (20°C). The sound transmission loss is 4dB, the sound transmission loss is 7.5dB at 2000Hz multiplied, and 14dB at 4000Hz multiplied.

[0021] Among them, the resin binder is composed of water-soluble phenolic resin, auxiliary agent and deionized water in a mass ratio of 1:2.1:32, and the auxiliary agent is composed of 15 parts by mass of urea, 100 parts of Wacker silicone oil, 8 parts Composed of melamine, 20 parts acrylic acid, 3 parts ammonium sulfate, and 70 parts dei...

Embodiment 2

[0027] A sound-insulating and heat-insulating glass fiber felt. The diameter of the superfine high-silica glass fiber in the glass fiber felt is normally distributed between 1.5-3.0 μm, and the content of silicon oxide is 97%. The resin in the cotton felt is The content of the binder is 10%, and the thickness of the cured resin binder is 0.02 μm. The distance between the middle layer and the layer of the cotton felt is 60 μm, and its porosity is 97.5%. The thermal conductivity of the cotton felt is 0.028W / m·K (20°C), and the sound transmission loss is 4dB at 500Hz multiplied frequency, and 4dB at 1000Hz multiplied frequency. The sound transmission loss is 8dB, the sound transmission loss is 14.5dB at 2000Hz multiplied, and 22dB at 4000Hz multiplied.

[0028] Wherein, the resin binder is composed of water-soluble phenolic resin, auxiliary agent and deionized water in a mass ratio of 1:2.3:33, and the auxiliary agent is composed of 17 parts by mass of urea, 70 parts of Wacker si...

Embodiment 3

[0034] A sound-insulating and heat-insulating glass fiber felt. The diameter of the superfine high-silica glass fiber wool in the glass fiber felt is normally distributed between 1.5-3.0 μm, and the content of silicon oxide is 95%. The resin in the cotton felt is The content of the binder is 20%, and the thickness of the cured resin binder is 0.08 μm. The distance between the middle layer and the layer of the cotton felt is 45 μm, and its porosity is 96%. The thermal conductivity of the cotton felt is 0.032W / m·K (20°C), and the sound transmission loss is 6dB at 500Hz multiplied, and 6dB at 1000Hz multiplied. The sound transmission loss is 9dB, the sound transmission loss is 17dB at 2000Hz multiplied, and 28dB at 4000Hz multiplied.

[0035]Among them, the resin binder is composed of water-soluble phenolic resin, auxiliary agent and deionized water in a mass ratio of 1:2:34, and the auxiliary agent is composed of 20 parts by mass of urea, 82 parts of Wacker silicone oil, 3 parts...

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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Abstract

The invention relates to a sound and heat insulation glass filter cotton felt and belongs to the technical field of glass filter material. The sound and heat insulation glass filter cotton felt is formed by stacking glass fiber cotton layers which are coated by resinoid bond and then being solidified in high temperature; glass fiber cotton in the glass fiber cotton layer is ultrafine high silica glass fiber cotton with a normal distribution between 1.5 and 3.0[mu]m in diameter; the content of silicon oxide in the ultrafine high silica glass fiber cotton is >=95%. The ultra-fine high-silica glass fiber cotton in the sound and heat insulation glass filter cotton felt is made of alkali-free glass fiber cotton, and is obtained by acid leaching, water washing and the like. The multi-fine high-silica glass fiber cotton has many small and dense micro-voids, which makes the finally prepared glass fiber cotton felt have excellent heat-insulating and sound-insulating function.

Description

technical field [0001] The invention belongs to the technical field of glass fiber materials, and in particular relates to a sound-insulating and heat-insulating glass fiber felt. Background technique [0002] Glass wool felt is a felt-like material in which glass fibers with a resin binder are interspersed in disorder in space, and the fibers are arranged in an unoriented three-dimensional structure after heating and curing. There are a large number of pores inside the glass wool felt, and the porosity is as high as 70. % to 90%, has good thermal insulation and sound insulation properties, and is widely used in thermal insulation and sound insulation fields such as construction, petroleum, transportation, and aerospace. However, due to the relatively thick fiber diameters currently used to prepare glass wool felts, usually more than 7 μm, and the layering effect of glass wool felts is not good, usually in a state of overlapping, so that the performance of glass wool felts i...

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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Application Information

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IPC IPC(8): D04H1/4218D04H1/587D04H1/593D06M11/13D06M11/55D06M11/65
CPCD04H1/4218D04H1/587D04H1/593D06M11/13D06M11/55D06M11/65
Inventor 杨金明
Owner 重庆纤维研究设计院股份有限公司
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