A kind of sound-absorbing paper material and its manufacturing method

A manufacturing method and technology for paper materials, which can be applied in special paper, synthetic cellulose/non-cellulose material pulp/paper, paper, etc., can solve the pollution of human environment and air pollution, the sound absorption performance is not ideal, and it is difficult to be used more widely. and other problems, to achieve the effect of good market competitiveness, good fire prevention and self-extinguishing characteristics, and low cost

Active Publication Date: 2011-12-14
佛山市顺德区惠美庄材料实业有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the Chinese Patent Document No. CN1311380 discloses a combined noise-reducing component with a depth of a rear cavity formed by a micro-perforated plate and a micro-perforated plate; although these materials have the effect of reducing noise in an ultra-wide frequency band, a large cavity structure and the entire structure are required. The material has rigid characteristics and is difficult to curl, which makes the whole material have defects such as narrow practical application area, bulky size, and high cost. It is complicated to install in the air conditioner

Method used

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  • A kind of sound-absorbing paper material and its manufacturing method
  • A kind of sound-absorbing paper material and its manufacturing method
  • A kind of sound-absorbing paper material and its manufacturing method

Examples

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Example

[0072] First embodiment

[0073] The manufacturing method of sound-absorbing paper material is as follows:

[0074] (1) Dry the main fiber material at 100℃ for 2h before manufacturing.

[0075] (2) Put the dried main fiber material and auxiliary materials into a mixer for mixing; among them, in terms of weight percentage, the main fiber material is 28% plant fiber, and the auxiliary material is 45% cotton fiber. , 20% elastic nano cellulose and 7% functional polymer fiber (the weight ratio of polyester fiber, polypropylene fiber and aramid fiber is 1:1.2:2.5).

[0076] (3) In the process of mixing the materials, the chemicals that need to be added are 0.5% flame retardant, 3% water repellent, and 1% preservative, which account for the weight of the bone-dry main fiber material, and rotate at 300 revolutions in the mixer. Stir evenly at speed / min.

[0077] (4) The manufacturing method of elastic nanocellulose: ordinary pulp or vegetable cotton fiber is first dissolved in room temperat...

Example

[0085] Second embodiment

[0086] The manufacturing method of sound-absorbing paper material is as follows:

[0087] (1) Dry the main fiber material at 100℃ for 2h before manufacturing.

[0088] (2) Put the dried main fiber material and auxiliary material into a mixer for mixing; wherein, in terms of weight percentage, the main fiber material is composed of 70% plant fiber, and the auxiliary material is 30% Cotton fiber.

[0089] (3) In the process of material mixing, the chemicals that need to be added are 2% flame retardant, 3% water repellent, and 3% preservative, which account for 2% of the weight of the bone-dry main fiber material, and rotate at 300 revolutions in the mixer. Stir evenly at speed / min.

[0090] (4) The manufacturing method of elastic nanocellulose: ordinary pulp or vegetable cotton fiber is first dissolved in room temperature ionic liquid (1-butyl-3-methylimidazole chloride salt) (dissolving temperature is 80℃, and dissolution time is After 1 hour), the elastic ...

Example

[0098] The third embodiment

[0099] The manufacturing method of sound-absorbing paper material is as follows:

[0100] (1) Dry the main fiber material at 105°C for 2h before manufacturing.

[0101] (2) Put the dried main fiber material and auxiliary materials into a mixer for mixing; wherein, in terms of weight percentage, the main fiber material is composed of 28% plant fiber, and the auxiliary material is 45%. It is composed of cotton fiber and 27% elastic nano cellulose.

[0102] (3) During the process of mixing the materials, the chemicals that need to be added are 1.5% flame retardant, 8% water repellent, 2% preservative, which accounts for the weight of the dry main fiber material, and rotate at 300 revolutions in the mixer. Stir evenly at speed / min.

[0103] (4) The manufacturing method of elastic nanocellulose: ordinary pulp or vegetable cotton fiber is first dissolved in room temperature ionic liquid (1-butyl-3-methylimidazole chloride salt) (dissolving temperature is 80℃, ...

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Abstract

The invention relates to a sound absorbing paper material and a manufacturing method thereof. The sound absorbing paper material comprises a sound absorbing paper base material which is formed by overlapping a main material and an auxiliary material, wherein the main material comprises a vegetable fiber, the auxiliary material comprises a cotton fiber and/or elastic nanometer cellulose and/or a functional polymer fiber, and the density and the thickness of the sound absorbing paper are 240-350kg/m<3> and 4-15mm respectively. The sound absorbing paper material of the invention is different from previous noise reduction materials. According to the manufacturing method of the invention, a cellulose fiber with high elasticity and a fiber with a hollow structure are mutually combined, a chemical nanometer modification method is adopted to modify the original structural form of the surface of the fiber to make sound waves move in nano-micron apertures between fibers and nano apertures in the fibers in a compression mode, so the conversion of the sound energy to the mechanical energy and the heat energy is realized. The sound absorbing paper material of the invention which has the advantages of flexible bending, light weight, small volume, low cost, good fireproof and self-extinguishing characteristic, and easy assembling has good application prospects and market competitiveness, and is especially suitable for being used for the noise reduction of variable frequency compressors.

Description

technical field [0001] The invention relates to a sound-absorbing material, in particular to a sound-absorbing paper material suitable for inverter air conditioner compressors and a manufacturing method thereof. Background technique [0002] The development of my country's refrigeration and air-conditioning industry started in the 1950s and 1960s. After more than half a century of development, there are currently more than a thousand manufacturing companies in the industry, and the number of employees has reached hundreds of thousands. Especially in the past five years, the average annual growth rate of the industry With a rate of 30%, a number of international brands have been formed. At present, the output of many products ranks first in the world. my country has developed into the world's second largest consumer market for refrigeration and air-conditioning equipment and the largest producer. The vital force of the equipment industry and an important part of the national ec...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21H11/12D21H13/00D21H13/24D21H15/06D01D5/06D01F2/02
Inventor 谭炳伟刘德桃谭炳安陈粤
Owner 佛山市顺德区惠美庄材料实业有限公司
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