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Sound absorption material

A sound-absorbing material, octyl phenolic resin technology, applied in the field of sound-absorbing materials, can solve the problems of poor sound-absorbing characteristics, large base material volume, and poor constructability, and achieve fast setting speed, small base material volume, and excellent constructability Effect

Inactive Publication Date: 2014-12-24
江苏鑫国精密模具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies, the object of the present invention is to provide a sound-absorbing material to solve the problems of poor sound-absorbing characteristics in the mid-frequency and low-frequency regions below 2000 Hz, large base material volume and poor construction performance in the prior art.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The sound-absorbing material provided by the present invention comprises the following parts by weight: 8 parts of octylphenolic resin, 0.9 part of stearic acid, 23 parts of carbon powder, 78 parts of talcum powder, 10 parts of vermiculite powder, 0.6 parts of tin, 12 parts of dibutyl phthalate, 2.6 parts of composite sol, 8.8 parts of inorganic fiber, 1 part of rare earth oxide, 1 part of zirconia, 1 part of surfactant, 1 part of aluminate cement, PVA aqueous solution 7 servings.

Embodiment 2

[0018] The sound-absorbing material provided by the present invention comprises the following parts by weight: 10 parts of octylphenolic resin, 1 part of stearic acid, 30 parts of carbon powder, 80 parts of talcum powder, 15 parts of vermiculite powder, 1.5 parts of tin, 15 parts of dibutyl phthalate, 16 parts of composite sol, 15 parts of inorganic fiber, 3 parts of rare earth oxide, 1.5 parts of zirconia, 0.3 parts of surfactant, 3 parts of aluminate cement, PVA aqueous solution 24 servings.

Embodiment 3

[0020] The sound-absorbing material provided by the present invention comprises the following parts by weight: 13 parts of octylphenolic resin, 2.3 parts of stearic acid, 35 parts of carbon powder, 85 parts of talcum powder, 18 parts of vermiculite powder, 1.8 parts of tin, 19 parts of dibutyl phthalate, 30 parts of composite sol, 30 parts of inorganic fiber, 6 parts of rare earth oxide, 2.5 parts of zirconia, 0.6 part of surfactant, 5.5 parts of aluminate cement, PVA aqueous solution 36 servings.

[0021] The preparation method of the sound-absorbing material is characterized in that it comprises the following steps:

[0022] First mix octyl phenolic resin, stearic acid, composite sol, and PVA aqueous solution, then stir in the internal mixer for 10-20 minutes, then add carbon powder, talc powder, vermiculite powder, stannous chloride, diphthalate Butyl ester, inorganic fiber, rare earth oxide, zirconia, surfactant, aluminate cement, and continue to stir for 20-30 minutes to...

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Abstract

The invention discloses a sound absorption material. The sound absorption material is prepared form the following materials in parts by weight: octyl phenolic resin, stearic acid, powered carbon, talcum powder, vermiculite, stannous chloride, dibutyl phthalate, composite sol, inorganic fiber, rare earth oxide, zirconium oxide, a surfactant, aluminate cement and PVA aqueous solution. The sound absorption material has the advantages that zirconium oxide and rare earth oxide are added, so that the overall sound absorption material maintains good sound absorption property and also has high strength; octyl phenolic resin and complex sol are added, so that adhesive property of the sound absorption material is improved, and a sizing speed is high; powdered carbon, talcum powder and vermiculite are added, so that holes are formed in the surface of the sound absorption material while the sound absorption material is sized, sound absorption property is higher than sound absorption coefficient of a common sound absorption material, distribution frequency band is wide, especially the sound absorption coefficient in a low frequency band is high, a base material is small in size, and application property is excellent.

Description

technical field [0001] The invention relates to the technical field of sound-absorbing material preparation, in particular to a sound-absorbing material. Background technique [0002] Sound-absorbing material is a material with strong sound energy absorption and noise reduction performance. It absorbs incident sound energy by virtue of its own porosity, thin film effect or resonance effect. It is one of the components of ultrasonic inspection equipment. The acoustic material should match the acoustic characteristic impedance of the surrounding sound transmission medium, so that the sound energy can enter the sound-absorbing material without reflection, and most of the incident sound energy can be absorbed. [0003] In order to meet the engineering and practical requirements of the cutting operation system, it is the key to solve the practical problem of high noise in the ultra-light and small cold cutting operation system. The noise of the ultra-light and small cold cutting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B26/02C04B14/38C04B14/36C04B24/30C04B24/08C04B111/52
Inventor 伏海峰王群
Owner 江苏鑫国精密模具有限公司
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