CN1321809C - Composite damping rubber plate with high damping and wide temperature range and its making process - Google Patents
Composite damping rubber plate with high damping and wide temperature range and its making process Download PDFInfo
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- CN1321809C CN1321809C CNB2004100113063A CN200410011306A CN1321809C CN 1321809 C CN1321809 C CN 1321809C CN B2004100113063 A CNB2004100113063 A CN B2004100113063A CN 200410011306 A CN200410011306 A CN 200410011306A CN 1321809 C CN1321809 C CN 1321809C
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Abstract
The present invention relates to a composite damping rubber plate with high damping and wide temperature range and a manufacturing method, which belongs to the field of decorative materials for shock absorption and noise reduction. The composite damping rubber plate with high damping and wide temperature range is formed by compounding a damping layer plate 1, a viscoelastic layer 2 and a bounding layer plate 3, wherein the damping layer plate 1 is made from asphalt and inorganic fillers, the viscoelastic layer 2 is made from various viscoelastic materials, such as polyvinyl acetate, and the bounding layer plate 3 is made from rubber, inorganic fillers, rubber vulcanizing agents, auxiliary agents and resins. In the manufacturing method, the damping layer plate 1 is manufactured through the processes of melting asphalt, adding the fillers, extruding a blank and pressing a sheet material according to the proportion by weight of raw materials; the rubber and the resins are mixed and refined according to the proportion by weight, the inorganic fillers, the auxiliary agents and the rubber vulcanizing agents are added for continuous mixing and refining, and then, the blank and a pressing sheet are extruded out to manufacture the bounding layer plate 3; the viscoelastic materials are coated on the bounding layer plate 3 after being melted, and then, the composite damping rubber plate is pressed. The present invention can be used for automobile bodies, floors, etc., and obtains better effect on shock absorption and noise reduction since three layers of materials all have the functions of shock absorption and noise reduction.
Description
Technical field
The invention belongs to the damping material field of vibration and noise reducing, particularly be used for the compound damping slab rubber of vehicle floor and vehicle body.
Background technology
Along with developing rapidly of auto manufacturing, car owning amount increases, and originally woollen blanket and pitch are the requirement that the damping material of damping slab rubber can not satisfy the damping noise reduction of automobile, and recent years, polymer damping material was applied to vehicle body, the floor of automobile.Polymer composite mainly utilizes the distinctive viscoplasticity of rubber in the process of vibration kinetic energy to be converted into potential energy, thereby amplitude is reduced.Its principle is that polymer is being subjected to stress such as vibration to do the time spent, because of will overcoming the intersegmental internal friction of chain, the chain molecule motion needs the time, therefore response lag is in stress, this hysteresis is fairly obvious under uniform temperature and frequency, distortion lags behind and wants produce power consumption, the kinetic energy of vibrating object is reduced, thereby reach the purpose of damping noise reduction.
Chinese patent 03133578.0 discloses a kind of composite damping plate and preparation method thereof, and it is by panel, damping sheet, bottom plate combined forming, and damping sheet is made with modified pitch 35%-60%, reclaimed rubber 0-25%, inserts 40%-65%.With plank, glued board, bamboo clappers, wood-based plate etc. as panel and base plate.Its preparation method is modified pitch 120～200 ℃ of fusings, add reclaimed rubber and inserts stirs and extrudes embryo piece, compacting damping layer sheet material, damping layer sheet material two surfaces is coated with PUR and is placed on hot pressing composite molding in the middle of panel and the base plate.
Be to use traditional technology to be made in the above-mentioned patent, damping material is single, reduces to vibrate the effect that reduces noise and has much room for improvement, and still can not satisfy the requirement of the vehicle manufacturing industry damping noise reduction of present develop rapidly.
Summary of the invention
The technical problem to be solved in the present invention is: adopt Interpenetrating Polymer Network Technology, utilize unique synthetic technology and effective combination of macromolecular material, can be with the linking of the glass transition temperature of multicomponent polymeric material, obtain a high damping value in broad temperature territory, satisfy different practical application request.And damping material adopts MULTILAYER COMPOSITE technology, best results in the damping noise reduction material.
Laminate is compound makes by damping laminate, viscoelastic layer and constraint for the compound damping slab rubber in the wide temperature of high damping of the present invention territory.
The compound damping slab rubber in the wide temperature of a kind of high damping territory, viscoelastic layer are clipped between damping laminate and the constraint laminate; The damping laminate is made up of pitch and filler, and pitch accounts for 32-46% by weight percentage, filler accounts for 54-68%; The viscoelastic layer is made of various viscoelastic body material polyvinyl acetate or polyurethane or polybutene PUR; The constraint laminate is by rubber, inorganic filler, vulcanizer, auxiliary agent and resin are formed, said inorganic filler is talcum powder and carbon black and blanc fixe, or talcum powder and carbon black and fine particle calcium carbonate, or coarse whiting and carbon black and alumina silicate and carclazyte and titanium dioxide, said vulcanizer be sulphur (S) or/and TMTD (TT) or/and diphenylguanidine (D) or/and N-cyclohexyl-2 benzothiazole sulfenamide (CZ) or/and 2-mercaptan benzothiazole (M) or/and dibenzothiazyl disulfide (DM), said auxiliary agent be CaO or/and MgO or/and ZnO or/and Al
2O
3, said resin is Petropols or Petropols and phenolic resins; Rubber accounts for 22-28%, inorganic filler and accounts for 43-59%, vulcanizer and account for that 4-7%, auxiliary agent account for 6-15%, resin accounts for 0-14% by weight percentage.
In the composition of damping laminate, said filler can be talcum powder and pin silica flour and mica powder, or adds fine particle calcium carbonate or coarse whiting or carclazyte; Include cotton in the filler, it accounts for the 2-3% of damping laminate by weight.Also having resin in the composition of damping laminate, can be the PEF resin or/and acrylic resin, can also be obedient olefine resin or/and ancient marlon resin or/and Petropols or/and abietic resin, resin accounts for the 0-4% of damping laminate by weight.In the composition of damping laminate, reasonable pitch percentage by weight is 32-34%.
The viscoelastic body material of viscoelastic layer can also be that acrylonitrile-butadiene rubber is or/and butyl rubber etc.
The thickness of damping laminate, viscoelastic layer and constraint laminate is respectively 1.5-3.0mm, 0.2-0.4mm, 1.5-3.0mm.Can make different size and shape according to each position damping noise reduction scantling of vehicle and shape need.
Owing to be that multiple composite is combined with each other and reaches the effect of wide temperature zone high damping, especially show high damping at 20 ℃-70 ℃, can see by embodiment described later, the damping value that uses Denmark's cantilever beam damping test instrument to record is 0.052-0.16, can adapt to the needs of high-grade vehicle with wide temperature zone high damping fully.
The manufacture method of the compound damping slab rubber in high damping of the present invention wide temperature territory is, presses the weight proportion of raw material, prepares the damping laminate through asphalt melting, filled or filler and resin, the process of extruding embryo piece, compacting sheet material; Rubber or rubber and resin is mixing on double roll mill by weight ratio, and temperature is 100-120 ℃, add by weight ratio inorganic filler and auxiliary agent and vulcanizer continued mixing 0.5-1 hour, extruded embryo piece and compressing tablet again and made the constraint laminate; To be coated in the damping laminate behind the viscoelastic body material hot melt or/and on the constraint laminate, form the compound damping slab rubber of three-decker with hydraulic press.
Step is described below more clearly:
One. the making of damping laminate:
1, pitch is melted down at 120-160 ℃;
2, the filler of described weight proportion and resin are added stir in the pitch of fusing and extrude the embryo piece with extruder;
3, the embryo piece is made sheet material with two roll calender, its thickness is 1.5-3.0mm.
Two. the bond course damping sheet is made:
1, aforesaid rubber or rubber and resin is mixing on double roll mill in proportion, temperature is 100-120 ℃;
2, adding by weight ratio inorganic filler, auxiliary agent, vulcanizer etc. continues mixing half an hour;
3, can refine into the embryo piece with making the above-mentioned rubber secondary that mixes;
4, with above-mentioned rubber embryo piece compressing tablet on tri-roll press machine, its thickness is 1.5-3.0mm.
Three. the making of composite damping plate
With viscoplasticity rubber damping layer is coated in aforesaid pitch damping sheet to be combined with each other with hydraulic press on the bound damping sheet again and makes by damping layer, viscoelastic layer and three layers of damping slab rubber of bond course.
The present invention adopts multilayer damping material complex method to prepare damping slab rubber, the damping laminate is based on pitch and filler, the constraint laminate adopts thermoset resin and inorganic filler to make the sheet material of rigidity through curing, two interlayers bond together with the viscoelastic layer, the damping material that is composited like this is widely used in positions such as body of a motor car, floor, three layers of material complex group Buddhist nun material all have the function of damping noise reduction, reach the damping noise reduction effect.Especially has better damping 20 ℃ of-70 ℃ of temperature ranges.
Description of drawings
Fig. 1 is the structural representation of the compound damping slab rubber in high damping of the present invention wide temperature territory.
The specific embodiment
Below in conjunction with the concrete case that provides the batching among the present invention and processing technology are done to describe in further detail, and provided corresponding damping value.The numerical value that damping value among each embodiment all is to use Denmark's cantilever beam damping test instrument to record.The data of the various raw materials in table 1 and the table 2 are weight portions of proportioning.
Referring to Fig. 1, compound damping slab rubber of the present invention is made of damping laminate 1, viscoelastic layer 2, constraint laminate 3.The damping laminate of selecting for use according to the occasion difference of using 1 can be 1.5-3.0mm, and viscoelastic layer 2 can be between 0.2-0.4mm, and the thickness of constraint laminate 3 is 1.5-3mm.
Damping laminate 1 prescription sees Table 1# in 1, and constraint laminate 3 prescriptions see Table 1# in 2, and viscoelastic layer 2 uses the polyvinyl acetate PUR.
Processing method:
1, damping laminate 1 manufacture craft is as follows: the pitch of said ratio weight is melted down at 120-160 ℃; The filler of described weight is added to stir in the pitch of fusing extrudes the embryo piece with extruder; The embryo piece is made sheet material with two roll calender, and its thickness is 2.0mm.
2, constraint laminate 3 manufacture crafts: the rubber and the resin of said ratio weight is mixing on double roll mill, and temperature is 100-120 ℃; The inorganic filler that adds said ratio weight; The auxiliary agent and the vulcanizer that add said ratio weight continue mixing half an hour; Temperature is 80-100 ℃, makes secondary refining film; With sheet rubber compressing tablet on tri-roll press machine, its thickness is 3.0mm again.
3, composite damping plate manufacture craft: vinyl acetate is melted in 160 ℃ of melten gel jars, with glue spreader the polyvinyl acetate PUR is coated on the constraint laminate 3 uniformly, thickness is 0.2-0.4mm, above again damping laminate 1 being compounded in, thereby make three layers of composite damping plate forming by damping laminate 1, viscoelastic layer 2 and constraint laminate 3.
Recording damping value is 0.08,40 ℃ at 20 ℃ to be 0.16,70 ℃ is 0.07.
If in constraint laminate 3 manufacture crafts, add inorganic filler, auxiliary agent, vulcanizer etc. and continue the mixing times at 3/4 hour or 1 hour, latter temperature is reduced to 80-100 ℃, and can not carry out secondary mixing; It is compound that the polyvinyl acetate of fusion is coated on the damping laminate 1 viscoelastic, be coated in constraint laminate 3 on effect be the same.
Damping laminate 1 and constraint laminate 3 should make its thickness be defined as the interior a certain numerical value of 1.5--3.0mm scope when making sheet material according to actual needs.
Damping laminate 1 prescription sees Table 2# in 1, and constraint laminate 3 prescriptions see Table 2# in 2, and viscoelastic layer 2 uses the polyvinyl acetate PUR.
Recording 20 ℃ of damping values and be 0.0526,40 ℃, to be 0.11,70 ℃ be 0.06
Damping laminate 1 prescription sees Table 3# in 1, and constraint laminate 3 prescriptions see Table 2# in 2, and viscoelastic layer 2 uses the polyvinyl acetate PUR.Manufacturing process is with embodiment 1.
Record damping value 20 ℃ 0.05,40 ℃ 0.07,70 ℃ 0.06.
Embodiment 4
Record damping value 20 ℃ 0.08; 40 ℃ 0.14; 70 ℃ 0.06.
Embodiment 5
Record damping value 20 ℃ 0.08,40 ℃ 0.14,70 ℃ 0.06.
Embodiment 6
Record damping value 20 ℃ 0.07; 40 ℃ 0.14; 70 ℃ 0.05.
Embodiment 7
Record damping value 20 ℃ 0.09; 40 ℃ 0.16; 70 ℃ 0.07.
Embodiment 8
Damping laminate 1 sees Table 1# in 1,6# in the constraint laminate 3 usefulness tables 2,, viscoelastic layer 2 uses polybutene, and composite damping plate manufacturing process is identical with embodiment 1.
Record damping value 20 ℃ 0.06; 40 ℃ 0.12; 70 ℃ 0.08.
Embodiment 9
Damping laminate 1 among the embodiment 1-8 was after tested: at 140 ℃, the 30 minutes sagging 10-20mm in heating back; With iron plate bonding force one-level.Fetter laminate 3 after tested: 140 ℃ of solidification temperatures, 30 minutes, its sagging 10-20m; Amount of contraction is not more than 6mm; Hardness is greater than 90 (shore hardnesses).All requirements of realistic use.
Table 1
| |
1# | 2# | 3# | |
| Pitch | Pitch 100# | 30 | 3 | |
| Pitch 140# | 32 | 13.6 | ||
| Pitch 70# | 21 | |||
| Pitch 10# | 10 | |||
| Filler | Talcum powder | 35 | 29.1 | 31 |
| The pin silica flour | 5 | 4.6 | 10 | |
| Mica powder | 17 | 13.6 | 15 | |
| Carclazyte | 4.6 | |||
| Fine particle calcium carbonate | 8 | |||
| Coarse whiting | 4 | |||
| |
3 | 2.7 | 2 | |
| Resin | PEF | 4 | ||
| Polypropylene | 1.8 | |||
Table 2
| |
1# | 2# | 3# | 4# | 5# | 6# | |
| Rubber | Acrylonitrile-butadiene rubber | 6.6 | 6.7 | ||||
| Butyl rubber | 7.7 | 6.7 | |||||
| SBR styrene butadiene rubbers | 11.7 | 10.3 | 13.3 | 12.2 | 10.3 | ||
| Natural rubber | 6.1 | ||||||
| Neoprene | 8.7 | 4.0 | |||||
| The modification butadiene | 5.7 | 6.1 | |||||
| Butadiene rubber | 5.8 | 11.4 | 2.6 | 6.4 | 8.9 | ||
| Inorganic filler | Talcum powder | 29.1 | 22.7 | 31.8 | 24.5 | 25.6 | |
| Blanc fixe | 22.7 | 26.5 | 24.5 | 25.6 | |||
| Fine particle calcium carbonate | 14.6 | ||||||
| Coarse whiting | 22.2 | ||||||
| Alumina silicate | 6.7 | ||||||
| Titanium dioxide | 2.2 | ||||||
| Carclazyte | 17.8 | ||||||
| Carbon black | 0.1 | 0.03 | 0.05 | 0.05 | 0.05 | 0.03 | |
| Auxiliary agent | Calcium oxide | 8.7 | 6.9 | 8.0 | 7.4 | 3.8 | 6.7 |
| Zinc oxide | 2.9 | 1.1 | 1.3 | 1.2 | 1.3 | 1.1 | |
| Aluminium oxide | 2.3 | ||||||
| Magnesia | 2.9 | 1.1 | 1.3 | 1.2 | 1.3 | 1.1 | |
| Vulcanizer | S | 1.5 | 2.3 | 4.0 | 2.5 | 3.8 | 4.4 |
| M | 0.3 | 0.2 | 0.3 | 0.3 | 0.2 | ||
| D | 0.9 | 0.4 | 1.0 | 1.0 | 0.9 | ||
| CZ | 0.3 | 0.1 | 0.3 | 0.2 | 0.3 | 0.2 | |
| TT | 0.9 | 1.4 | 0.5 | 1.0 | 0.9 | ||
| DM | 0.2 | ||||||
| Resin | Petropols | 8.7 | 11.4 | 12.3 | 11.5 | 13.3 | |
| Phenolic resins | 2.9 | ||||||
Claims (6)
1, the compound damping slab rubber in the wide temperature of a kind of high damping territory, damping laminate (1) is made up of pitch and filler, and pitch accounts for 32-46% by weight percentage, filler accounts for 54-68%; It is characterized in that structure also has viscoelastic layer (2) and constraint laminate (3), viscoelastic layer (2) is clipped between damping laminate (1) and the constraint laminate (3); Viscoelastic layer (2) is made of polyvinyl acetate or polyurethane or polybutene; Constraint laminate (3) is made up of rubber, inorganic filler, vulcanizer, auxiliary agent and resin, said inorganic filler is talcum powder and carbon black and blanc fixe or talcum powder and carbon black and fine particle calcium carbonate or coarse whiting and carbon black and alumina silicate and carclazyte and titanium dioxide, said vulcanizer be sulphur or/and TMTD or/and diphenylguanidine or/and N-cyclohexyl-2 benzothiazole sulfenamide or/and the 2-mercaptan benzothiazole or/and dibenzothiazyl disulfide, said auxiliary agent be CaO or/and MgO or/and ZnO or/and AI
2O
3, said resin is Petropols or Petropols and phenolic resins; Rubber accounts for 22-28%, inorganic filler and accounts for 43-59%, vulcanizer and account for that 4-7%, auxiliary agent account for 6-15%, resin accounts for 0-14% by weight percentage.
According to the compound damping slab rubber in the described high damping of claim 1 wide temperature territory, it is characterized in that 2, the thickness of damping laminate (1), viscoelastic layer (2) and constraint laminate (3) is respectively 1.5-2.0mm, 0.2-0.6mm, 1.5-2.0mm.
3, according to the compound damping slab rubber of claim 1 or 2 described high dampings wide temperature territory, it is characterized in that in the composition of damping laminate (1), filler includes cotton, it accounts for the 2-3% of damping laminate (1) by weight; Also having resin in the composition of damping laminate (1), is the PEF resin or/and acrylic resin, and resin accounts for the 0-4% of damping laminate (1) by weight.
4, according to the compound damping slab rubber of claim 1 or 2 described high dampings wide temperature territory, it is characterized in that, in the time of temperature 20-70 ℃, have the damping value that uses Denmark's cantilever beam damping test instrument to obtain and be 0.052-0.16.
5, the manufacture method of the compound damping slab rubber in a kind of high damping of claim 1 wide temperature territory is pressed the weight proportion of raw material, prepares damping laminate (1) through asphalt melting, filled or filler and resin, the process of extruding embryo piece, compacting sheet material; It is characterized in that, rubber or rubber and resin is mixing on double roll mill by weight ratio, temperature is 100-120 ℃, add by weight ratio inorganic filler and auxiliary agent and vulcanizer continued mixing 0.5-1 hour, extruded embryo piece and compressing tablet again and made constraint laminate (3); To be coated in damping laminate (1) behind the viscoelastic body material hot melt or/and on the constraint laminate (3), form the compound damping slab rubber of three-decker with hydraulic press.
According to the manufacture method of the compound damping slab rubber in the described high damping of claim 5 wide temperature territory, it is characterized in that 6, said constraint laminate (3) process of making is carried out the secondary mixing refining before extruding the embryo piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100113063A CN1321809C (en) | 2004-12-07 | 2004-12-07 | Composite damping rubber plate with high damping and wide temperature range and its making process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100113063A CN1321809C (en) | 2004-12-07 | 2004-12-07 | Composite damping rubber plate with high damping and wide temperature range and its making process |
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| Publication Number | Publication Date |
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| CN1636706A CN1636706A (en) | 2005-07-13 |
| CN1321809C true CN1321809C (en) | 2007-06-20 |
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| CNB2004100113063A Expired - Fee Related CN1321809C (en) | 2004-12-07 | 2004-12-07 | Composite damping rubber plate with high damping and wide temperature range and its making process |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344702C (en) * | 2006-03-24 | 2007-10-24 | 张平 | Asphalt filler compsns |
| CN101469084B (en) * | 2007-12-29 | 2011-06-08 | 江苏东旭科技有限公司 | Wide temperature zone high damping cushion rubber |
| KR101148499B1 (en) * | 2009-12-29 | 2012-05-25 | 금호석유화학 주식회사 | Manufacturing method for sound insulating material |
| CN102003483A (en) * | 2010-11-22 | 2011-04-06 | 江苏东旭科技有限公司 | Novel high performance rubber damping film used for motor car and light rail |
| CN103788439B (en) * | 2012-10-24 | 2015-12-09 | 中国皮革和制鞋工业研究院 | Wide temperature range height shock-absorbing sport shoes sole rubber material and preparation method thereof |
| CN107353656B (en) * | 2017-07-31 | 2020-06-30 | 吉林大学 | Thermoplastic environment-friendly composite damping rubber plate for vehicle and preparation method thereof |
| CN107805382A (en) * | 2017-11-13 | 2018-03-16 | 常州明华运输有限公司 | A kind of preparation method of wide temperature range type rubber damping material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5858521A (en) * | 1994-07-25 | 1999-01-12 | Lintec Corporation | Vibration damper material comprising a vicso elastic layer of unvulcanized rubber |
| CN1247815A (en) * | 1998-09-16 | 2000-03-22 | 中国科学院金属研究所 | Sandwiched damping board for chassis of bus |
| CN1462772A (en) * | 2003-05-31 | 2003-12-24 | 戚广连 | Composite damping board and its preparation method |
-
2004
- 2004-12-07 CN CNB2004100113063A patent/CN1321809C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5858521A (en) * | 1994-07-25 | 1999-01-12 | Lintec Corporation | Vibration damper material comprising a vicso elastic layer of unvulcanized rubber |
| CN1247815A (en) * | 1998-09-16 | 2000-03-22 | 中国科学院金属研究所 | Sandwiched damping board for chassis of bus |
| CN1462772A (en) * | 2003-05-31 | 2003-12-24 | 戚广连 | Composite damping board and its preparation method |
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| CN1636706A (en) | 2005-07-13 |
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