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A sound-absorbing and noise-reducing flame-retardant material and its preparation method

A flame-retardant material and noise-reducing technology, which is applied in the processing of textile materials, such as equipment configuration, chemical instruments and methods, and textile material processing, can solve the problems of inconvenient cleaning and maintenance of guide rollers, effects of flame retardants on impregnation effects, and wrinkles of mixed felts. and other problems, to achieve the effect of reducing the difficulty of cleaning and maintenance, excellent sound absorption, and accelerating the drying process

Active Publication Date: 2021-03-30
安徽蓝格利通新材应用股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the former, the guide roller needs to give the mixed felt a greater tension, so that when the mixed felt passes through the guide roller, the flame retardant inside it is easy to be squeezed out, which affects the impregnation effect, and also causes the cleaning and maintenance of the guide roller. The disadvantages of inconvenience and slow feeding speed, after impregnating the flame retardant, it needs to be soaked with liquid, which will easily cause serious wrinkles and tightness of the mixed felt after drying.
For the latter, it is easy to have insufficient infiltration

Method used

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  • A sound-absorbing and noise-reducing flame-retardant material and its preparation method
  • A sound-absorbing and noise-reducing flame-retardant material and its preparation method
  • A sound-absorbing and noise-reducing flame-retardant material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 2 As shown, a sound-absorbing and noise-reducing flame-retardant material includes the following materials by weight:

[0038] 5 parts of carbon fiber, 15 parts of recycled cotton fiber, 2 parts of polyester fiber, 15 parts of low-melting thermoplastic fiber and 20 parts of non-woven fiber. The specifications of the above materials are: thickness 6D, length 100mm.

[0039] A method for preparing a sound-absorbing, noise-reducing and flame-retardant material, comprising the steps of:

[0040] (1) Opening treatment, taking a certain amount of carbon fiber, recycled cotton fiber, polyester fiber, low melting point thermoplastic fiber and non-woven fiber in proportion, feeding and mixing through five electronic bag opening machines, and then conveying the curtain by the mixing unit The mixed raw materials are transported to the fine opener for opening and breaking up, and then combed evenly by a carding machine, and then the above-mentioned mixed fibers are...

Embodiment 2

[0049] A sound-absorbing, noise-reducing and flame-retardant material, comprising the following materials in parts by weight:

[0050] 7 parts of carbon fiber, 20 parts of recycled cotton fiber, 5 parts of polyester fiber, 18 parts of low-melting thermoplastic fiber and 25 parts of non-woven fiber. The specifications of the above materials are: thickness 12D, length 60mm.

[0051] A method for preparing a sound-absorbing, noise-reducing and flame-retardant material, comprising the steps of:

[0052] (1) Opening treatment, taking a certain amount of carbon fiber, recycled cotton fiber, polyester fiber, low melting point thermoplastic fiber and non-woven fiber in proportion, feeding and mixing through five electronic bag opening machines, and then conveying the curtain by the mixing unit The mixed raw materials are transported to the fine opener for opening and breaking up, and then combed evenly by a carding machine, and then the above-mentioned mixed fibers are laid by a web-l...

Embodiment 3

[0061] A sound-absorbing, noise-reducing and flame-retardant material, comprising the following materials in parts by weight:

[0062] 10 parts of carbon fiber, 30 parts of recycled cotton fiber, 6 parts of polyester fiber, 20 parts of low-melting thermoplastic fiber and 30 parts of non-woven fiber. The specifications of the above materials are: thickness 20D, length 20mm.

[0063] A method for preparing a sound-absorbing, noise-reducing and flame-retardant material, comprising the steps of:

[0064] (1) Opening treatment, taking a certain amount of carbon fiber, recycled cotton fiber, polyester fiber, low melting point thermoplastic fiber and non-woven fiber in proportion, feeding and mixing through five electronic bag opening machines, and then conveying the curtain by the mixing unit The mixed raw materials are transported to the fine opener for opening and breaking up, and then combed evenly by a carding machine, and then the above-mentioned mixed fibers are laid by a web-...

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Abstract

The invention discloses a sound-absorbing and noise-reducing flame-retardant material and a preparation method thereof, and relates to the technical field of sound-absorbing flame-retardant material processing. The material comprises 5-10 parts of carbon fiber, 15-30 parts of regenerated cotton fiber, 2-6 parts of polyester fiber, 15-20 parts of low-melting-point thermoplastic fiber and 20-30 parts of non-woven fiber. The preparation method comprises the steps of opening treatment, primary needling, dipping and drying, baking, washing and drying, secondary needling, steaming, die assembly forming, cutting and the like steps. The invention further discloses a dipping and drying all-in-one machine for flame retardant dipping and drying treatment. Compared with the prior art, the material hasexcellent sound-absorbing and flame-retardant performance and good thermoplastic forming performance, the semi-finished product of the composite felt subjected to secondary needling is further fluffyby steam blowing, so that the sound-absorbing performance is improved, and meanwhile, the material has a certain shock-absorbing effect.

Description

technical field [0001] The invention belongs to the technical field of processing sound-absorbing and flame-retardant materials, and in particular relates to a sound-absorbing, noise-reducing, and flame-retardant material and a preparation method thereof. Background technique [0002] The traditional manufacturing method of domestic automobile noise reduction felt is generally to use mixed cotton, spun cotton and phenolic resin to make felt sheets with different sizes and specifications and the same surface density. After heating the material, it is molded and solidified to form a felt product. . Although the above materials have a certain noise reduction function, there are still deficiencies, and the formed material has a relatively high density. Although it has good strength and tensile properties, it sacrifices more sound absorption and noise reduction effects. [0003] At present, there are many kinds of sound insulation materials on the market, and the sound insulatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/00B32B9/04B32B27/02B32B27/12B32B27/36B32B5/02B32B5/26B32B37/02B32B37/06B32B37/08B32B37/10B32B37/12B32B38/08B32B38/16B60R13/08D04H1/4382D04H1/46D06B3/10D06B15/00D06B23/20
CPCB32B5/028B32B5/08B32B5/26B32B37/02B32B37/06B32B37/08B32B37/10B32B37/1284B32B38/08B32B38/162B32B2250/02B32B2262/02B32B2262/0276B32B2262/106B32B2262/14B32B2307/102B32B2307/3065B32B2307/56B32B2605/08B60R13/08D04H1/4382D04H1/46D06B3/10D06B15/00D06B23/20
Inventor 章健汪申学晋春保
Owner 安徽蓝格利通新材应用股份有限公司