High-efficiency sound-insulating material and manufacturing method thereof

Abstract

The invention relates to the field of products of sound insulation material, solves the problems in the prior art that the sound insulation material is poor in sound insulation effect, is incomprehensive in high and low frequency sound insulation, causes pollution and is easy to age, and provides an efficient sound insulation material and a manufacturing method thereof. The efficient sound insulation material includes a sound insulation layer, a sound absorption layer, and a bubble layer, wherein the bubble layer is located between the sound insulation layer and the sound absorption layer. The sound absorption layer is made of a sound insulation compound, and the sound insulation compound is prepared by raw materials of the following substances: a thermoplastic resin, inorganic fillers, and a foaming agent, wherein the inorganic fillers account for 15-80wt%, the foaming agent accounts for 5-15wt%, and the rest is the thermoplastic resin. In the efficient sound insulation material, the fillers with different particle diameters correspond to sound waves of different wave bands or frequencies, and thus consumption of sound energy of different frequencies is relatively comprehensive, and the sound insulation effect is good, so the sound insulation material is suitable for popularization and application.

Description

technical field

[0001] The invention relates to the field of sound-insulating material products, and relates to a high-efficiency, high-low-frequency sound-insulating comprehensive material and a manufacturing method thereof. Background technique

[0002] With the development of modern industry, environmental pollution is also produced. Noise pollution is a kind of environmental pollution, which has become a great harm to human beings. Noise pollution, water pollution and air pollution are regarded as the three main problems of human life and living environment.

[0003] Noise is an irregular sound emitted by a sounding body. The sound is caused by the vibration of an object and propagates in a certain medium (such as solid, liquid, gas) in the form of waves. The sound usually heard is air sound. Generally speaking, the frequency of sound waves that can be heard by the human ear is 20-20,000 Hz, which is called audible sound; below 20 Hz, it is called infrasound wave; abov...

Examples

Embodiment 1

[0067] correspond figure 1 / sound insulation material shown in table 1

[0068] Raw materials: m-LLDPE thermoplastic resin 40kg; azodicarbonamide ratio 10kg; zinc oxide 2.5kg; petroleum resin 5kg; 2,6-di-tert-butyl-p-cresol 2.5kg; micron calcium carbonate fine powder 40kg; Zinc acid 2kg, DINP 3.5kg; 2,6-di-tert-butyl-p-cresol 1kg; petroleum resin C91kg; triphenyl phosphate 1kg; zinc stearate 1kg;

[0069] Foamed PET sheet, foamed PET sheet as sound-absorbing layer;

[0070] Preparation and pretreatment of nano-submicron-micron inorganic fine powder

[0071] Using a ball mill, with the same parameter configuration, such as at a constant speed of 50rpm, grind the micron-sized inorganic filler for 10 days respectively to obtain ball sample 1, sheet sample 1, and needle sample 1; after 1.5 days, obtain ball sample 2, sheet sample 2, Needle sample 2; 5 hours, get ball sample 3, sheet sample 3, needle sample 3. Then, the materials that have been ground for different times are m...

Embodiment 2

[0081] correspond figure 2 / Raw materials of sound insulation materials shown in Table 2: m-LLDPE thermoplastic resin 40kg; azodicarbonamide ratio 10kg; zinc oxide 2.5kg; petroleum resin 5kg; 2,6-di-tert-butyl-p-cresol 2.5kg; Calcium fine powder (40kg); micron flaky kaolin (40kg); zinc stearate 2kg; DINP 3.5kg; 2,6-di-tert-butyl-p-cresol 1kg; petroleum resin C9 1.5kg; triphenyl phosphate 1kg ;

[0082] Foamed PET sheet; Then, calcium carbonate and kaolin were ground into fine powders in the same manner as in Example 1, characterized, and mixed. And the same manner as in Example 1 was used to prepare the sound-insulating composition of granular and needle-shaped fillers. The final sound-insulating layer consists of two layers, which are respectively made of sound-insulating composites containing sheet-like and granular inorganic fillers; the carpet, sound-insulating layer and sound-absorbing layer are overlapped in this way to prepare a multi-layer sound-insulating material...

Embodiment 3

[0087] correspond image 3 / sound insulation material shown in table 3

[0088] Raw materials: m-LLDPE thermoplastic resin 40kg; azodicarbonamide ratio 10kg; zinc oxide 2.5kg;

[0089] Petroleum resin 5kg; 2,6-di-tert-butyl-p-cresol 2.5kg micron grade calcium carbonate fine powder (40kg);

[0090] Micron flaky kaolin (40kg); micron wollastonite (40kg); zinc stearate 2kg; DINP 3.5kg; 2,6-di-tert-butyl-p-cresol 1kg; petroleum resin C9 1.5kg

[0091] Triphenyl phosphate 1kg;

[0092] Foamed PET sheet;

[0093] Then, calcium carbonate, kaolin and wollastonite were ground into fine powder by the same method as in Example 1, characterized and mixed. And the same method as in Example 1 was used to prepare the sound-insulating composition of granular, flake and needle-shaped fillers. The final sound-insulating layer consists of three layers, which are respectively prepared from sound-insulating composites containing sheet-like, granular and needle-shaped inorganic fillers; the s...

technical field

[0001] The invention relates to the field of sound-insulating material products, and relates to a high-efficiency, high-low-frequency sound-insulating comprehensive material and a manufacturing method thereof. Background technique

[0002] With the development of modern industry, environmental pollution is also produced. Noise pollution is a kind of environmental pollution, which has become a great harm to human beings. Noise pollution, water pollution and air pollution are regarded as the three main problems of human life and living environment.

[0003] Noise is an irregular sound emitted by a sounding body. The sound is caused by the vibration of an object and propagates in a certain medium (such as solid, liquid, gas) in the form of waves. The sound usually heard is air sound. Generally speaking, the frequency of sound waves that can be heard by the human ear is 20-20,000 Hz, which is called audible sound; below 20 Hz, it is called infrasound wave; abov...

Examples

Embodiment 1

[0067] correspond figure 1 / sound insulation material shown in table 1

[0068] Raw materials: m-LLDPE thermoplastic resin 40kg; azodicarbonamide ratio 10kg; zinc oxide 2.5kg; petroleum resin 5kg; 2,6-di-tert-butyl-p-cresol 2.5kg; micron calcium carbonate fine powder 40kg; Zinc acid 2kg, DINP 3.5kg; 2,6-di-tert-butyl-p-cresol 1kg; petroleum resin C91kg; triphenyl phosphate 1kg; zinc stearate 1kg;

[0069] Foamed PET sheet, foamed PET sheet as sound-absorbing layer;

[0070] Preparation and pretreatment of nano-submicron-micron inorganic fine powder

[0071] Using a ball mill, with the same parameter configuration, such as at a constant speed of 50rpm, grind the micron-sized inorganic filler for 10 days respectively to obtain ball sample 1, sheet sample 1, and needle sample 1; after 1.5 days, obtain ball sample 2, sheet sample 2, Needle sample 2; 5 hours, get ball sample 3, sheet sample 3, needle sample 3. Then, the materials that have been ground for different times are m...

Embodiment 2

[0081] correspond figure 2 / Raw materials of sound insulation materials shown in Table 2: m-LLDPE thermoplastic resin 40kg; azodicarbonamide ratio 10kg; zinc oxide 2.5kg; petroleum resin 5kg; 2,6-di-tert-butyl-p-cresol 2.5kg; Calcium fine powder (40kg); micron flaky kaolin (40kg); zinc stearate 2kg; DINP 3.5kg; 2,6-di-tert-butyl-p-cresol 1kg; petroleum resin C9 1.5kg; triphenyl phosphate 1kg ;

[0082] Foamed PET sheet; Then, calcium carbonate and kaolin were ground into fine powders in the same manner as in Example 1, characterized, and mixed. And the same manner as in Example 1 was used to prepare the sound-insulating composition of granular and needle-shaped fillers. The final sound-insulating layer consists of two layers, which are respectively made of sound-insulating composites containing sheet-like and granular inorganic fillers; the carpet, sound-insulating layer and sound-absorbing layer are overlapped in this way to prepare a multi-layer sound-insulating material...

Embodiment 3

[0087] correspond image 3 / sound insulation material shown in table 3

[0088] Raw materials: m-LLDPE thermoplastic resin 40kg; azodicarbonamide ratio 10kg; zinc oxide 2.5kg;

[0089] Petroleum resin 5kg; 2,6-di-tert-butyl-p-cresol 2.5kg micron grade calcium carbonate fine powder (40kg);

[0090] Micron flaky kaolin (40kg); micron wollastonite (40kg); zinc stearate 2kg; DINP 3.5kg; 2,6-di-tert-butyl-p-cresol 1kg; petroleum resin C9 1.5kg

[0091] Triphenyl phosphate 1kg;

[0092] Foamed PET sheet;

[0093] Then, calcium carbonate, kaolin and wollastonite were ground into fine powder by the same method as in Example 1, characterized and mixed. And the same method as in Example 1 was used to prepare the sound-insulating composition of granular, flake and needle-shaped fillers. The final sound-insulating layer consists of three layers, which are respectively prepared from sound-insulating composites containing sheet-like, granular and needle-shaped inorganic fillers; the s...

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