Aramid paper honeycomb composite floor with strong sound insulation performance and preparation method thereof

A technology of composite flooring and aramid paper, applied in chemical instruments and methods, flat products, and other household appliances, can solve the problem that sound cannot achieve high-efficiency sound absorption, achieve low density, high weighted sound insulation, and reduce braking The effect of power

Active Publication Date: 2017-11-03
江苏骏源新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing sound-insulating pads all adopt a multi-layer composite bonded structure, which cannot achieve high-efficiency sound-absorbing effects in sound absorption. Therefore, a high-efficiency porous sound-absorbing composite aramid paper honeycomb composite floor and Its preparation method is very necessary

Method used

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  • Aramid paper honeycomb composite floor with strong sound insulation performance and preparation method thereof

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preparation example Construction

[0030] The preparation formula of porous nitrile rubber in step 2 among the present invention is: the nitrile raw rubber of 100phr, the carbon black of 20~30phr, promotor, 5~10phr zinc oxide (ZnO), 5~10phr urea, 10~15phr plasticizer , 1~5phr anti-aging agent, vulcanizing agent, 10~15phr foaming agent.

[0031] The accelerator in the present invention is composed of 0.5~1.5phr 2-mercaptobenzothiazole (M), 0.2~0.4phr zinc diethyldithiocarbamate (ZDC), and 2~5phr stearic acid (HSt); The plasticizer is diisononyl phthalate (DINP); the anti-aging agent is 4010NA; the vulcanizing agent is 1~5phr sulfur (S) and 1~5phr dicumyl peroxide (DCP) ; The blowing agent is azodicarbonamide (AC).

[0032] Porous acrylonitrile-butadiene rubber in the present invention is prepared according to the following method:

[0033] Step a: Add raw nitrile rubber to an internal mixer at 120~150°C, then mix carbon black, accelerator, stearic acid, zinc oxide and plasticizer evenly and add in batches, kne...

Embodiment 1

[0038] Step 1: Put the double-layer glass fiber phenolic prepreg into a hot press for curing to form a prepreg cured sheet;

[0039] Step 2: preparing porous nitrile rubber;

[0040] Step 3: Spread the release agent evenly on the surface of the smooth aluminum plate, the amount of release agent is 60ml / m 2 After 5 minutes, use epoxy glue as an adhesive to bond the prepreg cured sheet, porous nitrile rubber and aramid paper honeycomb in sequence, and then press the aluminum plate on the composite floor to form a prefabricated honeycomb floor.

[0041] Step 4: Put the prefabricated honeycomb floor made in step 3 into a hot press, and cure it for 80 minutes at a curing temperature of 50° C. and a curing pressure of 0.2 MPa to obtain a strong sound-insulating aramid paper honeycomb composite floor.

[0042] The preparation formula of porous nitrile rubber in step 2 in embodiment 1 is: 100phr nitrile raw rubber, 25phr carbon black, accelerator, 8phr zinc oxide (ZnO), 6phr urea, 10ph...

Embodiment 2

[0049] Step 1: Put the double-layer glass fiber phenolic prepreg into a hot press for curing to form a prepreg cured sheet;

[0050] Step 2: preparing porous nitrile rubber;

[0051] Step 3: Spread the release agent evenly on the surface of the smooth aluminum plate, the amount of release agent is 80ml / m 2 After 5 minutes, use epoxy glue as an adhesive to bond the prepreg cured sheet, porous nitrile rubber and aramid paper honeycomb in sequence, and then press the aluminum plate on the composite floor to form a prefabricated honeycomb floor.

[0052] Step 4: Put the prefabricated honeycomb floor made in step 3 into a hot press, and cure it for 80 minutes at a curing temperature of 50° C. and a curing pressure of 0.2 MPa to obtain a strong sound-insulating aramid paper honeycomb composite floor.

[0053] The preparation formula of porous nitrile rubber in step 2 in embodiment 2 is: 100phr nitrile raw rubber, 20phr carbon black, accelerator, 10phr zinc oxide (ZnO), 5phr urea, 1...

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Abstract

The invention specifically relates to an aramid paper honeycomb composite floor with strong sound insulation performance and a preparation method thereof, belonging to the technical field of preparation of new materials. The aramid paper honeycomb composite floor comprises cured sheets of prepreg, porous nitrile rubber and an aramid paper honeycomb, wherein the aramid paper honeycomb is glued between porous nitrile rubber I and porous nitrile rubber II by an adhesive; the upper surface of the porous nitrile rubber II is glued with a prepreg cured sheet I by the adhesive; the lower surface of the porous nitrile rubber II is glued with a prepreg cured sheet II by the adhesive; the prepreg cured sheets have surface density of 500 + / - 20 g / m<2>, resin content of 40% and volatile content of 8%; and the prepreg cured sheets comprise a single-layer prepreg cured sheet and a double-layer prepreg cured sheet, the single-layer prepreg cured sheet has a thickness of 0.25+ / - 0.025 mm, and the double-layer prepreg cured sheet has a thickness of 0.38 + / - 0.02mm.

Description

technical field [0001] The invention relates to the technical field of new material preparation, in particular to a strong sound-insulating aramid paper honeycomb composite floor and a preparation method thereof. Background technique [0002] With the continuous rapid development of science and technology of the times, the development of high-speed, convenient and fast transportation will follow. Trains, high-speed rails, and bullet trains all face a very difficult problem—noise. In the technology of improving the sound field environment in rail transit trains, we mainly start from two aspects. One is to install damping devices on the rails and wheels, to regularly polish the rails, and to repair the wheels, that is, to reduce the output of vibration and noise from the sound source. On the other hand, it is to reduce the vibration and noise transmitted from the bottom of the car to the interior of the car, and achieve the effect of vibration reduction and sound insulation b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B17/02B32B7/12B32B3/24B32B27/34B32B25/18B32B25/08B32B25/04B32B15/20B32B15/14B32B17/06B32B3/12C08L9/02C08K13/02C08K3/04C08K5/21C08K3/22C08J9/04B29C70/42B29B11/04B29L7/00B29L31/60
CPCB29B11/04B29C70/42B29L2007/002B29L2031/608B32B3/12B32B3/266B32B5/02B32B7/12B32B15/14B32B15/20B32B17/061B32B17/063B32B25/04B32B25/08B32B25/18B32B27/06B32B27/34B32B2260/021B32B2260/046B32B2262/101B32B2307/102B32B2419/04C08J9/04C08J2309/02C08K3/04C08K3/22C08K5/21C08K13/02C08K2003/2296C08L9/02
Inventor 宋俊富薛广钊
Owner 江苏骏源新材料有限公司
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