CN103360938B - Noise reduction damping paste and preparation method thereof - Google Patents
Noise reduction damping paste and preparation method thereof Download PDFInfo
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- CN103360938B CN103360938B CN201310313671.9A CN201310313671A CN103360938B CN 103360938 B CN103360938 B CN 103360938B CN 201310313671 A CN201310313671 A CN 201310313671A CN 103360938 B CN103360938 B CN 103360938B
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Abstract
The invention provides a noise reduction damping paste, which is prepared by mixing a component A and a component B together, wherein the component A accounts for 30-50%, the balance being component B. The component A is synthesized from the following materials: polyether 2000, polyether 3050, and 15%-20% of TDI. The component B is composed of hydrated alumina, mica powder, white carbon black, silicone oil, ethylene glycol, dibutyl ester, and moca. The present invention also provides a preparation method of the noise reduction damping paste. The noise reduction damping paste can effective suppress structural vibration and noises caused by the vibration, and has excellent damping performances like noise reduction, sound insulation, sealing, and thermal insulation. The noise reduction damping paste is solvent-free, non-toxic, good in flame resistance, and strong in adhesion, has no cracking and detachment, and is suitable for complex surfaces of steel basic layer with a thickness no more than 5 mm.
Description
Technical field
The invention provides a kind of damping cream, be specifically related to a kind of paste with excellent vibration damping and noise reducing, sound insulation, sealing, the over-all properties such as heat insulation, belong to mechanical field.
Background technology
In the running, because a lot of position all can produce friction, friction can bring noise and heat to machine, not only can produce noise pollution, and the heat produced also can make wear and tear in machines.The mechanical damping cream of current domestic production is rubbery foam type, inflammable, combustion after have low toxicity, its performance does not all reach technical requirements; The damping cream also had is used as lubricant.
Summary of the invention
The invention provides a kind of damping cream with excellent vibration damping and noise reducing, sound insulation, sealing, the performance such as heat insulation.This damping cream is solvent-free, nontoxic, good flame resistance, and strong adhesion does not ftracture, do not depart from.
Realizing the technical scheme that above-mentioned purpose of the present invention adopts is:
A kind of noise reducing damping cream, mixed together by component A and B component, wherein component A accounts for 30% ~ 50%, and surplus is B component;
Described component A is by following material through Reactive Synthesis, and each material and mass percent thereof are:
Polyethers 2,000 40% ~ 45% polyethers 3,050 40% ~ 45% TDI 15% ~ 20%;
Described B component is made up of following material, and each material and the mass percent shared by B component thereof are:
Hydrated aluminum oxide 35% ~ 45% mica powder 35% ~ 45%
White carbon black 4% ~ 6% carbon black 4% ~ 6% silicone oil 0.5% ~ 1.5%
Ethylene glycol 0.5% ~ 1.5% dibutylester 8% ~ 12% does not block 3% ~ 5%.
Described B component is made up of following material, and each material and the mass percent shared by B component thereof are:
Hydrated aluminum oxide 35% mica powder 45%
White carbon black 4% carbon black 4% silicone oil 0.5%
Ethylene glycol 0.5% dibutylester 8% does not block 3%.
Described component A is made up of following material, and each material and the mass percent shared by component A thereof are:
Polyethers 2,000 41.2% polyethers 3,050 41.2% TDI 17.6%.
The present invention additionally provides the preparation method of above-mentioned damping cream simultaneously, and this preparation method's technique is simple, and processing condition require low, easily realize large-scale industrial production.
Prepare a method for above-mentioned damping cream, comprise the following steps:
The preparation method of component A is as follows: in water-bath still, add polyethers 2000, polyethers 3050 and TDI according to the mass ratio of each material, temperature in reactor is risen to 50-70 DEG C, then insulation reaction 2-4 hour at this temperature, until nco value≤5.7% in reactor, discharging, obtains component A;
The preparation method of B component is as follows: (1), first take each component according to the mass percent of each component, by both fully being mixed and be down to room temperature after dibutylester and Mo Ka preheating, ethylene glycol and silicone oil is mixed and stirs;
(2), by powder body material: hydrated aluminum oxide, mica powder, white carbon black and carbon black add in stirrer and stir, then the mixture of ethylene glycol and silicone oil is added respectively, and dibutylester and the mixture that do not block, then stir with stirrer, discharging, obtained opaque mixture;
(3) add in steel grinding machine by opaque mixture, start steel grinding machine and pulverize opaque mixture, discharging after pulverizing, can obtain B component, and described B component is loose, dry wet uniform light green opaque miscellany;
Both proportionally fully mix after having prepared by component A and B component, can obtain noise reducing damping cream.
Damping cream provided by the present invention is the two component high-performance damping materials be compounded to form with polyurethane interpenetrating network polymer and damping filler.The noise that effectively can suppress structural vibration and be caused by structural vibration, has excellent vibration damping and noise reducing, sound insulation, sealing, the over-all properties such as heat insulation.Solvent-free, nontoxic.Good flame resistance, strong adhesion, does not ftracture, does not depart from.Be applicable to steel plate base layer thickness and be less than or equal to the complex-curved of 5mm.
Embodiment
Below in conjunction with specific embodiment, detailed specific description is done to the present invention, but protection scope of the present invention grammatically wrong sentence is confined to following examples:
Embodiment 1
The damping cream provided in the present embodiment is mixed together by component A and B component, wherein the preparation method of component A is as follows: take polyethers 2000, polyethers 3050 and TDI, each material and the mass percent in component A thereof are: polyethers 2,000 41.2% polyethers 3,050 41.2% TDI 17.6%, polyethers 2000, polyethers 3050 and TDI is added in clean water bath reactor, temperature in reactor is risen to 60 DEG C, then insulation reaction 3 hours at this temperature, until nco value≤5.7% in reactor, discharging, obtains component A;
The preparation method of B component is as follows: (1), elder generation take each component according to the mass percent of each component, and each material and the mass percent shared by B component thereof are:
Hydrated aluminum oxide 37.5% mica powder 37.5%
White carbon black 5% carbon black 5% silicone oil 1%
Ethylene glycol 1% dibutylester 10% does not block 4%.
By being down to room temperature after both fully being mixed after dibutylester and Mo Ka preheating, ethylene glycol and silicone oil being mixed and stirs;
(2), by powder body material: hydrated aluminum oxide, mica powder, white carbon black and carbon black add in stirrer and stir, then the mixture of ethylene glycol and silicone oil is added respectively, and dibutylester and the mixture that do not block, then stir with stirrer, discharging, obtained opaque mixture;
(3) add in steel grinding machine by opaque mixture, start steel grinding machine and pulverize opaque mixture, discharging after pulverizing, can obtain B component, and described B component is loose, dry wet uniform light green opaque miscellany.
Both fully mix according to the mass ratio of 1:1.5 after having prepared by component A and B component, can obtain noise reducing damping cream.
After testing, its performance is as follows for noise reducing damping cream obtained in the present embodiment:
Each performance of noise reducing damping cream prepared in the present embodiment all meets standard-required, has excellent vibration damping and noise reducing, sound insulation, sealing, the performance such as heat insulation.This damping cream is solvent-free, nontoxic, good flame resistance, and strong adhesion does not ftracture, do not depart from.
Embodiment 2
The damping cream provided in the present embodiment is mixed together by component A and B component, wherein the preparation method of component A is as follows: take polyethers 2000, polyethers 3050 and TDI, each material and the mass percent in component A thereof are: polyethers 2,000 40% polyethers 3,050 40% TDI 20%, polyethers 2000, polyethers 3050 and TDI is added in clean water bath reactor, temperature in reactor is risen to 60 DEG C, then insulation reaction 3 hours at this temperature, until nco value≤5.7% in reactor, discharging, obtains component A;
The preparation method of B component is as follows: (1), elder generation take each component according to the mass percent of each component, and each material and the mass percent shared by B component thereof are:
Hydrated aluminum oxide 35% mica powder 45%
White carbon black 4% carbon black 4% silicone oil 0.5%
Ethylene glycol 0.5% dibutylester 8% does not block 3%.
By both fully being mixed and is down to room temperature after dibutylester and Mo Ka preheating, ethylene glycol and silicone oil are mixed and stirs;
(2), by powder body material: hydrated aluminum oxide, mica powder, white carbon black and carbon black add in stirrer and stir, then the mixture of ethylene glycol and silicone oil is added respectively, and dibutylester and the mixture that do not block, then stir with stirrer, discharging, obtained opaque mixture;
(3) add in steel grinding machine by opaque mixture, start steel grinding machine and pulverize opaque mixture, discharging after pulverizing, can obtain B component, and described B component is loose, dry wet uniform light green opaque miscellany.
Both fully mix according to the mass ratio of 1:1.2 after having prepared by component A and B component, can obtain noise reducing damping cream.
Embodiment 3
The damping cream provided in the present embodiment is mixed together by component A and B component, wherein the preparation method of component A is as follows: take polyethers 2000, polyethers 3050 and TDI, each material and the mass percent in component A thereof are: polyethers 2,000 45% polyethers 3,050 40% TDI 15%, polyethers 2000, polyethers 3050 and TDI is added in clean water bath reactor, temperature in reactor is risen to 60 DEG C, then insulation reaction 3 hours at this temperature, until nco value≤5.7% in reactor, discharging, obtains component A;
The preparation method of B component is as follows: (1), elder generation take each component according to the mass percent of each component, and each material and the mass percent shared by B component thereof are:
Hydrated aluminum oxide 36% mica powder 36%
White carbon black 6% carbon black 6% silicone oil 1%
Ethylene glycol 1% dibutylester 9% does not block 5%.
By both fully being mixed and is down to room temperature after dibutylester and Mo Ka preheating, ethylene glycol and silicone oil are mixed and stirs;
(2), by powder body material: hydrated aluminum oxide, mica powder, white carbon black and carbon black add in stirrer and stir, then the mixture of ethylene glycol and silicone oil is added respectively, and dibutylester and the mixture that do not block, then stir with stirrer, discharging, obtained opaque mixture;
(3) add in steel grinding machine by opaque mixture, start steel grinding machine and pulverize opaque mixture, discharging after pulverizing, can obtain B component, and described B component is loose, dry wet uniform light green opaque miscellany.
Both fully mix according to the mass ratio of 1:2 after having prepared by component A and B component, can obtain noise reducing damping cream.
Claims (4)
1. a noise reducing damping cream, it is characterized in that being mixed together by component A and B component, wherein component A accounts for 30% ~ 50%, and surplus is B component;
Described component A is by following material through Reactive Synthesis, and each material and mass percent thereof are:
Polyethers 2,000 40% ~ 45% polyethers 3,050 40% ~ 45% TDI 15% ~ 20%;
Described B component is made up of following material, and each material and the mass percent shared by B component thereof are:
Hydrated aluminum oxide 35% ~ 45% mica powder 35% ~ 45%
White carbon black 4% ~ 6% carbon black 4% ~ 6% silicone oil 0.5% ~ 1.5%
Ethylene glycol 0.5% ~ 1.5% dibutylester 8% ~ 12% does not block 3% ~ 5%.
2. noise reducing damping cream according to claim 1, is characterized in that: described B component is made up of following material, and each material and the mass percent shared by B component thereof are:
Hydrated aluminum oxide 35% mica powder 45%
White carbon black 4% carbon black 4% silicone oil 0.5%
Ethylene glycol 0.5% dibutylester 8% does not block 3%.
3. noise reducing damping cream according to claim 1, is characterized in that: described component A is made up of following material, and each material and the mass percent shared by component A thereof are:
Polyethers 2,000 41.2% polyethers 3,050 41.2% TDI 17.6%.
4. prepare a method for damping cream as claimed in claim 1, it is characterized in that comprising the following steps:
The preparation method of component A is as follows: in water-bath still, add polyethers 2000, polyethers 3050 and TDI according to the mass ratio of each material, temperature in reactor is risen to 50-70 DEG C, then insulation reaction 2-4 hour at this temperature, until nco value≤5.7% in reactor, discharging, obtains component A;
The preparation method of B component is as follows: (1), first take each component according to the mass percent of each component, by both fully being mixed and be down to room temperature after dibutylester and Mo Ka preheating, ethylene glycol and silicone oil is mixed and stirs;
(2), by powder body material: hydrated aluminum oxide, mica powder, white carbon black and carbon black add in stirrer and stir, then the mixture of ethylene glycol and silicone oil is added respectively, and dibutylester and the mixture that do not block, then stir with stirrer, discharging, obtained opaque mixture;
(3) add in steel grinding machine by opaque mixture, start steel grinding machine and pulverize opaque mixture, discharging after pulverizing, can obtain B component, and described B component is loose, dry wet uniform light green opaque miscellany;
Both proportionally fully mix after having prepared by component A and B component, can obtain noise reducing damping cream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310313671.9A CN103360938B (en) | 2013-07-24 | 2013-07-24 | Noise reduction damping paste and preparation method thereof |
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| CN201310313671.9A CN103360938B (en) | 2013-07-24 | 2013-07-24 | Noise reduction damping paste and preparation method thereof |
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| CN103360938A CN103360938A (en) | 2013-10-23 |
| CN103360938B true CN103360938B (en) | 2014-12-31 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104494248B (en) * | 2014-11-29 | 2016-05-04 | 湖北海风新材料股份有限公司 | A kind of low flame spread composite damping board |
| CN107385781A (en) * | 2017-07-27 | 2017-11-24 | 巢湖市荣达塑业有限公司 | A kind of preparation method of the washing machine counter weight of noise reduction damping |
| CN107722912A (en) * | 2017-09-15 | 2018-02-23 | 江苏大力士投资有限公司 | The epoxy adhesive of sound insulation and noise reduction |
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Address after: 438300 No. 273 Jinqiao Road, Macheng Economic Development Zone, Huanggang, Hubei Applicant after: HUBEI HAIFENG NEW MATERIALS CO., LTD. Address before: 438300 No. 273 Jinqiao Road, Macheng Economic Development Zone, Huanggang, Hubei Applicant before: Macheng Haifeng Acoustic Damping Materials Co., Ltd. |
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