CN103317806A - Wide-temperature-range damping composite material and preparation method thereof - Google Patents
Wide-temperature-range damping composite material and preparation method thereof Download PDFInfo
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- CN103317806A CN103317806A CN2013101913328A CN201310191332A CN103317806A CN 103317806 A CN103317806 A CN 103317806A CN 2013101913328 A CN2013101913328 A CN 2013101913328A CN 201310191332 A CN201310191332 A CN 201310191332A CN 103317806 A CN103317806 A CN 103317806A
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Abstract
The invention relates to a wide-temperature-range damping composite material and a preparation method thereof. The material is characterized in that the material can be divided into two layers along a thickness direction, wherein the first layer is a CPE substrate, and the second layer is a CPE and ZKF hybrid material. The two layers are bonded by thermal bonding. The thickness of the composite material is 2mm. V1:V2=80:20, wherein V1 and V2 respectively stand for volume percentages of corresponding layers in the composite whole. In the CPE and ZKF hybrid material, the content of ZKF is 40wt% or 50wt%. The preparation method comprises two main steps which are mixing and thermal-pressure forming. The composite material provided by the invention has high damping value and wide effective damping temperature range. The material provides good damping effect. The preparation method is simple and feasible, the cost is low, and the method is suitable for industrial productions.
Description
Technical field
The present invention relates to a kind of engineering material and preparation method, specifically is a kind of wide temperature range vibration damping composite material and preparation method thereof.This composite is applicable to automobile, train and aspects such as subway bridge railway carriage or compartment, household electrical appliance and sports equipment.
Background technology
Along with science and technology and development of modern industry, plant equipment is tending towards high speed and automation, and high-power machinery is on the increase, and the vibration that thereupon causes, noise and fatigue failure problem are also serious day by day.Vibration has not only influenced the raising of plant equipment performance, heavy damage stability and the reliability of plant equipment operation, and caused the fatigue of equipment and the decline in service life, this has increased enterprise's maintenance, maintenance and alternative cost inevitably; And a large amount of noise pollution of producing of vibration environment, also disturbed people's life simultaneously, endangered the healthy of people, make tired, the tinnitus of people, severe patient even disablement are if in the long-term environment more than 85dB, will cause noise deafness.Pollute greatly and noise pollution, atmosphere pollution and water pollute and be called three of the world today.Therefore, vibration and noise reducing improves man-machine working environment, is not only the engineering challenge of a sternness, also is an environmental issue that needs to be resolved hurrily simultaneously.
Along with developing rapidly of material science and technology, a series of damping materials that are applicable to that varying environment requires have been worked out.In the 1950's developed country such as America and Europe just to have carried out with military affairs be the research of the high damping material of purpose, at that time mainly based on metal material, but the effect of vibration and noise reduction of Metal Substrate damping material is directly proportional with weight.And the polymer-based damping material is the viscous damping in the viscoplasticity of utilizing in its glass transition region, partly changing the mechanical energy that absorbs or acoustic energy into thermal dissipation falls, namely can produce bigger in-fighting, and light specific gravity, be easy to processing, so be with a wide range of applications.Because the damping mechanism of general high polymer mainly is to have utilized in the glass transition zone, the molecule segment of high polymer has been converted to " thawing " state from glassy state " freezing ", by the fricting movement between the molecule segment, mechanical energy is changed into Joule heat and dissipate.But effective damping temperature range (tan δ〉0.3 temperature range) is narrow, is generally about 20～30 ℃; And for high-performance damping material, generally requiring fissipation factor tan δ〉0.3 limited proportionality temperature should reach 60 ℃.
Therefore in order to widen the effective damping temperature range, the researcher is by blend, IPN(interpenetrating polymer networks) etc. technology reach the purpose of widening the effective damping temperature range, but effect is not very desirable, and industrialization difficulty.In recent years, utilize organic molecule and polymer to form the way that hybrid has obtained high damping material, started new ideas, the new method of preparation high-performance damping material.As CPE/DZ organic hybrid body material, when the mass percent of DZ reaches 80%, fissipation factor; But the width of loss peak descends along with the increase of little molecular mass ratio, and loss peak is shifted to high temperature.Therefore in order addressing these problems, must to inquire into new damping mechanism, to develop new damping material.
The patent No. is: 200710040573.7, patent name discloses vibration reduction composite materials of gradient hybridization body in the Chinese patent of " a kind of vibration reduction composite materials of gradient hybridization body and preparation method thereof ", comprise along thickness direction, the component of hybrid material changes in gradient, and the hybrid component contains the ZKF mass percent and is: 5WT%, 15WT%, 25WT% and 40WT%.Above-mentioned vibration damping composite material and difference of the present invention are that the multilayer effect of contraction that vibration reduction composite materials of gradient hybridization body passes through (to comprise three layers) more than three layers is widened the effective damping temperature range, and the present invention only needs the two-layer mother's that can realize widening the effective damping temperature range, compare with the present invention, the defective of technique scheme and deficiency are that the number of plies is many, design complexity, difficult processing etc.
The patent No. is: 200710041636.0, patent name discloses a kind of preparation method in the Chinese patent of " preparation method of new multicomponent hybridization high-performance vibration reduction composite material ", step comprises: (1) mixing haloflex, (2-hydroxyl-3-cyclohexyl-5 methyl)-phenyl ring and 2,2-methylene bis-(4-ethyl-6-tert-butyl phenol) shreds and makes mixing particle; (2) hot forming makes multi-component hybridization high-performance vibration reduction composite material; (3) peak value of test fissipation factor TAN δ and the temperature position of loss peak correspondence.Said method and difference of the present invention are to utilize the compatible multi-component hybridization vibration damping composite material of formation between two kinds of small molecule materials and the matrix CPE, utilize the hydrogen bond network that forms high-load between organic molecule and the matrix, advantage with damping peak height, but compare with the present invention, the defective of technique scheme and deficiency are that the effective damping temperature range is narrow, tan δ〉0.3 limited proportionality temperature is less than 30 ℃, is difficult to satisfy actual the use.
Summary of the invention
Technical problem to be solved by this invention is to overcome deficiency of the prior art and a kind of have higher damping value and wideer effective damping temperature range are provided, the wide temperature range vibration damping composite material of good damping result, and a kind of preparation is simple and easy to do, cost is low, is fit to the preparation method of the wide temperature range vibration damping composite material of suitability for industrialized production.
The technical scheme that the present invention solves the problems of the technologies described above employing is: this wide temperature range vibration damping composite material, and it is characterized in that: thickness direction is divided into two-layer, and ground floor is the CPE base material, the second layer is CPE and ZKF hybrid material, heat bonding between two-layer, thickness of composite material are 2mm, V
1: V
2=80:20, wherein V
1And V
2Represent that respectively respective layer accounts for the percentage by volume of composite monolithic, ZKF content is 40wt% or 50wt% in described CPE and the ZKF hybrid material.The present invention is base material with haloflex (CPE), utilize the antiplasticization between organic molecule (2-hydroxyl-3-cyclohexyl-5 methyl)-phenyl ring (ZKF) and the CPE base, significantly improve the damping temperature of CPE base hybrid material, method by hot forming again, thickness direction along composite, with one deck CPE matrix and the heat bonding of one deck CPE/ZKF hybrid material, utilize CPE and CPE/ZKF hybrid material to have each self-corresponding loss peak temperature and height, reach the purpose of widening damping peak.Because the main body haloflex (PVC of this composite, chlorination degree is 35%) the damping peak temperature and the loss peak height that record through dynamic mechanics heat analysis instrument (DMA) are respectively-10 ℃ and 0.782, and the mass percent of the damping peak temperature of CPE/ZKF composite and loss peak height and organic molecule ZKF is closely related.When ZKF content was 40wt%, its damping peak temperature and loss peak height were respectively 40 ℃ and 1.593; When ZKF content was 50wt%, its damping peak temperature and loss peak height were respectively 45 ℃ and 1.593.
The wide temperature range vibration damping composite material of two kinds of ZKF content of the present invention, its whole tan δ is respectively 76 ℃ and 59.3 ℃ greater than 0.3 and 0.4 temperature range.
The present invention also provides a kind of preparation method of wide temperature range vibration damping composite material, comprises mixing and hot forming two big steps, it is characterized in that described mixing process is:
(1) roller temperature of two roller mixing rolls is risen to 60～65 ℃ and keep basicly stable;
(2) between roller, add the CPE powder, make softening being under the semi-fluid state, do artificial mixing with cutting knife simultaneously, mixing 5-10 minute;
(3) press setting weight than adding the ZKF organic molecule, it is spread out, with cutting knife mixing 10-15 minute in CPE;
(4) mixing evenly after, regulate the distance between two rollers, make that the thickness of film reaches desired thickness on the roller surface, peel with the form of thin slice, cooling at room temperature is in order to the usefulness of hot forming;
(5) repeat (2)～operating process of (4), can make the mixing film of hybrid of different component; And according to the volume ratio of different hybrids of design in advance, prepare the hybrid mixing materials, in order to carry out the preparation of wide temperature range vibration damping composite material;
Described heat pressure forming process is:
(1) the CPE mixing materials being placed on thickness is V
1In the thick mould inner chamber of mm, mould is all clamped with steel plate up and down, and between steel plate and mould with one deck high temperature antiadhesion barrier;
(2) steel plate is moved into vulcanizing press, with 150-160 ℃ of preheating 3-5 minute, make the abundant fusion of mixing materials under the unloading condition; Under the pressure of 3MPa, pressurizeed 3-5 minute then, make the moving mould inner chamber that is full of of melting mixing materials flow; And then exert pressure 3-5 minute of 10～12MPa, pressurize repeatedly, unload 3～5 times, discharging gas in the fusion batch mixing, can to make thickness be V
1The CPE film;
(3) repeat (1), (2) process, can make thickness is V
2CPE/ZKF hybrid material film;
(4) be the Thickness Design of mould V
1+ V
2Thick, put the CPE film and the CPE/ZKF hybrid material that have been shaped into mould, antiadhesion barrier and steel plate are put in the two sides, steel plate is put into vulcanizer, use exert pressure conformal 10-15 minute of 10～12MPa at last, take off steel plate, put into frozen water together with batch mixing and carry out Quenching Treatment, demoulding can obtain wide temperature range vibration damping composite material.There is certain defective by blend, IPN technology and organic hybrid body material at the vibration damping composite material that makes the wide temperature zone high damping properties, the invention provides a kind of wide temperature range vibration damping composite material that is easy to industrialization and preparation method thereof.The present invention utilizes the antiplasticization between organic molecule and the CPE base, significantly improve the damping temperature of CPE base hybrid material, its damping mechanism combines the viscoplasticity of high polymer and the invertibity of hybrid material hydrogen bond network, make the hybrid material not only have high damping properties, but also have wideer effective damping temperature range.
The present invention compared with prior art has the following advantages: 1. each layer of the present invention belongs to a kind of base material, has excellent compatibility, solved the mechanical property defect of insufficient that causes by the purpose that is separated to widen the effective damping temperature range; 2. designability is strong, and is simple to operate, is easy to industrialization; 3. its effective vibration damping temperature range meets the daily life environment temperature between-20～60 ℃, can satisfy the needs of practical application.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is fissipation factor tan δ test result of the present invention.
The specific embodiment
The selection of matrix material is mainly considered to select for use and itself is not only had viscoplasticity preferably, but also has certain polarity, take full advantage of the viscoelastic property of itself and prepare the hybrid material easily owing to polarity, also consider the superpolymer elastomer of domestic industrialization in addition, be the new application of such product development; The function organic molecule is selected the little molecule compatible with matrix material for use.Based on above consideration, it is 35% haloflex (CPE) that matrix material of the present invention is selected chlorination degree for use; The function organic molecule is selected (2-hydroxyl-3-cyclohexyl-5 methyl)-phenyl ring (ZKF) for use.
Thickness direction is divided into two-layer, and ground floor 1 is the CPE base material, and the second layer 2 is CPE and ZKF hybrid material, two-layer between heat bonding, thickness of composite material is 2mm, V
1: V
2=80:20, wherein V
1And V
2Represent that respectively respective layer accounts for the percentage by volume of composite monolithic, ZKF content is 40wt% in described CPE and the ZKF hybrid material.
Thickness direction is divided into two-layer, and ground floor 1 is the CPE base material, and the second layer 2 is CPE and ZKF hybrid material, two-layer between heat bonding, thickness of composite material is 2mm, V
1: V
2=80:20, wherein V
1And V
2Represent that respectively respective layer accounts for the percentage by volume of composite monolithic, ZKF content is 50wt% in described CPE and the ZKF hybrid material.
Preparation method's first step of above-mentioned two embodiment is mixing:
1〉roller temperature of two roller mixing rolls is risen to 60～65 ℃ and keep basicly stable.
2〉between roller, add haloflex (CPE) powder, make CPE softening by the roller surface temperature, and under the shearing force effect that roller produces owing to speed difference, the CPE powder is under the semi-fluid state, do artificial complementary mixing, mixing 8 minutes with cutting knife simultaneously.
3〉the ZKF organic molecule of adding 40wt% or 50 wt% between roller because the speed difference between two roller surfaces makes the ZKF organic molecule spread out in CPE, mixes with cutting knife is auxiliary simultaneously, and mixing time is about 12 minutes, makes it even mixing.
4〉total mixing time is 20 minutes, mixing evenly after, regulate the distance between two rollers, the thickness that makes film on the roller is 0.1mm, and from roller the form of film with thin slice is peeled, the usefulness of hot forming is prepared against in cooling at room temperature.
The second step hot forming:
1〉according to design the thickness of mould is adjusted to 1.6mm, CPE is layered in the mould inner chamber, mould is all clamped with steel plate up and down, and uses one deck high temperature antiadhesion barrier between steel plate and mould.
2〉steel plate is moved into vulcanizing press, 160 ℃ of preheatings 5 minutes, make the abundant fusion of CPE under the unloading condition.
3〉exert pressure of usefulness 5MPa is 5 minutes, the melting mixing particle is flowed be full of the mould inner chamber.
4〉pressurize, unload 1 minute repeatedly, discharge the gas in the fusion batch mixing.
5〉carry out with 2～4〉similar operation, making ZKF content is that 40 wt% hybrids fill up inner chamber.
6〉from vulcanizing press, take out steel plate, throw off one deck antiadhesion barrier, and the thickness of mould is increased 0.4mm according to design, and be ZKF content that 40 wt% hybrid materials are layered on the mould inner chamber, mould is all clamped with steel plate up and down, and uses one deck high temperature antiadhesion barrier between steel plate and mould.
7〉at last this composite with the exert pressure conformal of 10～12MPa 10 minutes.
8〉take off steel plate, put into frozen water together with batch mixing and carry out Quenching Treatment, demoulding can obtain CPE sound stage width temperature range vibration damping composite material.
As can be seen from Figure 2, pure CPE effective damping temperature range tan δ〉0.3 and 0.4, be respectively 37 ℃ and 27 ℃;
And embodiment 1 has surpassed 86 ℃ and 60 ℃ with embodiment 2 relevant effective damping temperature ranges, and in the time of 20 ℃, the tan δ value of this composite is also greater than 0.3.Therefore, the effective damping temperature range of prepared CPE sound stage width temperature range vibration damping composite material (tan δ〉0.3 temperature range) is significantly widened, and has higher fissipation factor, and vibration damping erasure effect will be better than the vibration damping erasure effect of pure CPE matrix material greatly.In addition, as can be seen from Figure 2, prepared CPE sound stage width temperature range vibration damping composite material serviceability temperature is wider, is between-10～60 ℃ of scopes in temperature, all has excellent vibration damping effect.
Though the present invention with embodiment openly as above; but it is not in order to limit protection scope of the present invention; any technical staff who is familiar with this technology not breaking away from change and the retouching of doing in the spirit and scope of the present invention, all should belong to protection scope of the present invention.
Claims (3)
1. one kind wide temperature range vibration damping composite material, it is characterized in that: thickness direction is divided into two-layer, ground floor is the CPE base material, the second layer is CPE and ZKF hybrid material, two-layer between heat bonding, thickness of composite material is 2mm, V
1: V
2=80:20, wherein V
1And V
2Represent that respectively respective layer accounts for the percentage by volume of composite monolithic, ZKF content is 40wt% or 50wt% in described CPE and the ZKF hybrid material.
2. wide temperature range vibration damping composite material according to claim 1, it is characterized in that: the wide temperature range vibration damping composite material of described two kinds of ZKF content, its whole tan δ is respectively 76 ℃ and 59.3 ℃ greater than 0.3 and 0.4 temperature range.
3. the preparation method of a wide temperature range vibration damping composite material comprises mixing and hot forming two big steps, it is characterized in that described mixing process is:
(1) roller temperature of two roller mixing rolls is risen to 60～65 ℃ and keep basicly stable;
(2) between roller, add the CPE powder, make softening being under the semi-fluid state, do artificial mixing with cutting knife simultaneously, mixing 5-10 minute;
(3) press setting weight than adding the ZKF organic molecule, it is spread out, with cutting knife mixing 10-15 minute in CPE;
(4) mixing evenly after, regulate the distance between two rollers, make that the thickness of film reaches desired thickness on the roller surface, peel with the form of thin slice, cooling at room temperature is in order to the usefulness of hot forming;
(5) repeat (2)～operating process of (4), can make the mixing film of hybrid of different component; And according to the volume ratio of different hybrids of design in advance, prepare the hybrid mixing materials, in order to carry out the preparation of wide temperature range vibration damping composite material;
Described heat pressure forming process is:
(1) the CPE mixing materials being placed on thickness is V
1In the thick mould inner chamber of mm, mould is all clamped with steel plate up and down, and between steel plate and mould with one deck high temperature antiadhesion barrier;
(2) steel plate is moved into vulcanizing press, with 150-160 ℃ of preheating 3-5 minute, make the abundant fusion of mixing materials under the unloading condition; Under the pressure of 3MPa, pressurizeed 3-5 minute then, make the moving mould inner chamber that is full of of melting mixing materials flow; And then exert pressure 3-5 minute of 10～12MPa, pressurize repeatedly, unload 3～5 times, discharging gas in the fusion batch mixing, can to make thickness be V
1The CPE film;
(3) repeat (1), (2) process, can make thickness is V
2CPE/ZKF hybrid material film;
(4) be the Thickness Design of mould V
1+ V
2Thick, put the CPE film and the CPE/ZKF hybrid material that have been shaped into mould, antiadhesion barrier and steel plate are put in the two sides, steel plate is put into vulcanizer, use exert pressure conformal 10-15 minute of 10～12MPa at last, take off steel plate, put into frozen water together with batch mixing and carry out Quenching Treatment, demoulding can obtain wide temperature range vibration damping composite material.
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|---|---|---|---|
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|---|---|---|---|
| CN2013101913328A CN103317806A (en) | 2013-05-22 | 2013-05-22 | Wide-temperature-range damping composite material and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002220440A (en) * | 2001-01-26 | 2002-08-09 | Nippon Zeon Co Ltd | Cyclic olefin ring-opening polymer and its production method |
| CN101786356A (en) * | 2010-01-25 | 2010-07-28 | 张博明 | Preparation method of a co-cured high damping composite material |
-
2013
- 2013-05-22 CN CN2013101913328A patent/CN103317806A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002220440A (en) * | 2001-01-26 | 2002-08-09 | Nippon Zeon Co Ltd | Cyclic olefin ring-opening polymer and its production method |
| CN101786356A (en) * | 2010-01-25 | 2010-07-28 | 张博明 | Preparation method of a co-cured high damping composite material |
Non-Patent Citations (1)
| Title |
|---|
| 丁新波: "宽温域高阻尼减振复合材料的制备和研究", 《中国博士学位论文全文数据库工程科技Ⅱ辑》, no. 6, 15 June 2008 (2008-06-15) * |
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Application publication date: 20130925 |