CN106810774A - Without pressure heat cure adhesion type high-performance rubber damping fin material - Google Patents
Without pressure heat cure adhesion type high-performance rubber damping fin material Download PDFInfo
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- CN106810774A CN106810774A CN201510865896.4A CN201510865896A CN106810774A CN 106810774 A CN106810774 A CN 106810774A CN 201510865896 A CN201510865896 A CN 201510865896A CN 106810774 A CN106810774 A CN 106810774A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The present invention relates to a kind of simple and easy to do, low cost, can industrialize reproduce and without pressure heat cure can be pasted onto on vehicle body metal surface without press heat cure adhesion type high-performance rubber damping fin material, mainly with butyl rubber and maleic anhydride grafted ethene-acetate ethylene copolymer（EVA）Co-mixing system is matrix, and it is tackifier and sulfur cross-linking system for main packing strengthening agent, epoxy resin to use inorganic filler, comprehensively solve high-damping, temperature range wide and the damping fin of rubber damping piece when mounted without pressure heat cure adhesion technique the problems such as.During preparation, by butyl rubber at 100~130 DEG C, maleic anhydride is grafted EVA, packing strengthening agent etc. is kneaded in adding banbury, it is set to be well dispersed in polymeric matrix, then elastomeric compound is kneaded into epoxy resin and vulcanizing system being added into above-mentioned masterbatch on a mill, damping slab rubber is shaped to using high pressure extruder, qualified size rubber damping piece is cut into further according to car damping plate design shape.
Description
Technical field
The present invention relates to a kind of simple and easy to do, low cost, can industrialize reproduce and without pressure heat cure can be pasted onto on vehicle body metal surface without pressure heat cure adhesion type high-performance rubber damping fin material, category rubber damping sheet material manufactures field.
Background technology
The surface that damp film is pasted onto vibrating mass can effectively reduce mechanical noise and mitigate mechanical oscillation and resonance.There is application at 8~12 positions such as the extensive use in various plant equipment, front panel, car door, car roof, car bottom plate, boot especially in automobile seat room, each automobile usable floor area about 3m2, about 8~15 kilograms of weight, market economy benefit scale is more than as many as 10,000,000,000 yuan.
Conventional hot melt type damping material is main base material with pitch and is aided with the damping mat that inorganic filler is made.It is well known that pitch heat endurance and loss of properties on aging.Pitch damping fin becomes fragile at low temperature, loses damping function.Soften at high temperature, and heatproof ageing properties are poor, damp film is hardened after long-term ageing, is similarly that damping capacity can be greatly reduced, or even lose damping.The even more noteworthy environmentally-friendly sanitary problem of pitch, although educational circles can't fully validated asphalt and bitumen to the harmfulness of human body, but have been acknowledged the polycyclic aromatic hydrocarbon compounds such as anthracene, phenanthrene, the pyrene that difficult volatilization is mainly contained in the asphalitine of coal tar pitch, these materials have toxicity, if for a long time and human contact, the harm to people is very big.Obviously, pitch damp film there is very big risk for vehicle vibration damping noise reduction.
It is inseparable with the chemical composition and structure of pitch that pitch damping fin has health, the substantive reason of environmentally friendly risk.It is generally acknowledged that it is to constitute calymma core by the asphalitine that relative molecular weight is big, aromaticity is high, colloid makes pitch calymma constitute dispersed phase, continuous phase is constituted by saturation point and fragrance point, the micelle formed by asphalitine-colloid is set to be dispersed stably in continuous phase, asphalitine plays core and skeleton function in colloform texture【Li Honglin, application of the pitch damping material on automobile and development, automotive engineering, 2003,12：35-39】.Counted according to industry, about 90% automobile on domestic motor market（Including some import vehicles）All employ asphaltic base damping fin, this mainly in the industry cycle goes back neither one technology maturation, and technique can be beautiful compared with prepared by asphaltic base damping fin, it is with low cost, the long-life butyl damp film technology of automobile factory's tool Efficient Damping easy for installation, so now widely using pitch damping fin, also category is to do something against one's will in fact.
At present, although educational circles can't fully validated asphalt and bitumen to the harmfulness of human body, but have been acknowledged the polycyclic aromatic hydrocarbon compounds such as anthracene, phenanthrene, the pyrene that difficult volatilization is mainly contained in the asphalitine of coal tar pitch, these materials have toxicity, if for a long time and human contact, the harm to people is very big.Obviously, pitch damp film there is very big risk for vehicle vibration damping noise reduction.
Polymer damping material is a kind of new material that new development is got up, and it can absorb the energy of vibration using high molecular viscoplasticity, and the mechanical energy or acoustic energy of absorption are partially converted into heat energy and are dissipated.Used as typical viscoplasticity macromolecular material, it has good damping capacity to rubber, so, rubber damping material increasingly causes the attention of people with its excellent performance.Found by studying, the damped coefficient of butyl rubber and nitrile rubber is larger; butadiene-styrene rubber, neoprene, silicon rubber, polyurethane rubber, EP rubbers damped coefficient it is medium; and the damped coefficient of natural rubber and butadiene rubber is minimum; and have developed the preferable rubber damping material of some damping capacities; be arranged on vibration surface of shell in order to rubber damping piece is pasted, research staff is expected using clay piece（Vibration damping putty）【Patent of invention, rubber self-adhering type composite damping material for motorcycles and its manufacture method, CN200710035526.3】Or clay is coated in sulfide film surface makes tack rubber damping piece【Utility model patent, a kind of butyl rubber damping damping mat for automobile, 201220153951.9；Utility model patent, a kind of self-adhering type flame-proof damping rubber piece for automobile, 200920278435.7】, also someone made rubber combined damping fin【Utility model patent, a kind of automobile foaming damp film, 201320127449.5；Utility model patent, automobile heat-insulation sound-adsorption damping pad, 201020620316.8；Utility model patent, car damping silencing pad, 201120514879.3】, but above-mentioned background technology is all excessively to pay close attention to the damping characteristic of damping fin, and to rubber damping piece paste install and the course of work in displacement, bulge or the hidden danger such as come off considers slightly to dislike not enough.There is experiment to show【Xu Fengchen etc., automobile damping material graphical analysis Nian Jie with vehicle body is bonded, 2009,3：70-72】, when damping material is with effective bond area of housing installation portion position is vibrated more than 70%, the damping effect of design could be realized, when effective bond area is less than 70%, the damping of damping material is just difficult to ensure that.Thus, develop a kind of non-pressure cure adhesion type high-performance rubber damping fin, on the premise of the mounting process of conventional hot melt adhesive type asphaltic base damping fin is met, and the rubber damping piece tool with the excellent properties such as the high-damping factor, temperature range wide, high- and low-temperature resistance, bonding strength be high is of great significance.
The content of the invention
Purpose of design：Avoid the weak point in background technology, design a kind of simple and easy to do, low cost, can industrialize reproduce and without pressure heat cure can be pasted onto on vehicle body metal surface without pressing heat cure adhesion type high-performance rubber damping fin material.
Design：In order to realize above-mentioned purpose of design.It is of the invention main with butyl rubber and maleic anhydride grafted ethene-acetate ethylene copolymer（EVA）Co-mixing system is matrix, and it is tackifier and sulfur cross-linking system for main packing strengthening agent, epoxy resin to use inorganic filler, comprehensively solve high-damping, temperature range wide and the damping fin of rubber damping piece when mounted without pressure heat cure adhesion technique the problems such as.During preparation, first by butyl rubber at 100 ~ 130 DEG C, maleic anhydride is grafted EVA, packing strengthening agent etc. is kneaded in adding banbury, it is set to be well dispersed in polymeric matrix, then epoxy resin and vulcanizing system are added in above-mentioned masterbatch on a mill and knead into elastomeric compound, elastomeric compound is shaped to by damping slab rubber using high pressure extruder, the qualified rubber damping piece of definite shape and size will be cut into again according to design requirement.
Technical scheme：Without pressure heat cure adhesion type high-performance rubber damping fin material, the raw material of the material includes the component of following mass parts to one kind：
95~105 parts of polymeric matrix,
100~150 parts of inorganic filler,
18~22 parts of liquid polybutadiene
10~15 parts of epoxy resin,
7~9 parts of vulcanization of rubber defoamer
5.5~6.5 parts of activating agent,
2.3~2.7 parts of age resistor,
2.3~2.7 parts of accelerator,
1.9~2.1 parts of sulphur,
9~11 parts of carbon black.
Preferred feedstock of the present invention is matched：
100 parts of polymeric matrix,
100~150 parts of inorganic filler,
Liquid polybutadiene 20
10~15 parts of epoxy resin,
8 parts of vulcanization of rubber defoamer
6 parts of activating agent,
2.5 parts of age resistor,
2.5 parts of accelerator,
2.0 parts of sulphur,
10 parts of carbon black.
Technical scheme 2：A kind of method without pressure heat cure adhesion type high-performance rubber damping fin material with the bonding of body of a motor car metal surface,（1）The geomery at the position pasted according to needed for automobile cuts out damping slab rubber, so as to obtain qualified rubber damping piece；（2）Qualified rubber damping piece is placed in the glued part of automobile, so automobile is sent into application drying room；According to painting dressing automobiles drying room baking vanish operation, rubber damping piece is set to be pasted onto on body of a motor car metal surface without pressure heat cure in hot-air drying tunnel.
The present invention is compared with background technology, material of the present invention has the excellent damping characteristic such as high-damping coefficient, temperature range wide, good mechanical property, high- and low-temperature resistance performance and hygienic environment-protecting performance, and it is preparation method is simple, with low cost, especially the rubber damping piece can be realized with metallic matrix without pressure heat cure bonding according to the mounting process of conventional hot melt adhesive type pitch damping fin.
Specific embodiment
Embodiment：Without pressure heat cure adhesion type high-performance rubber damping fin material, the raw material of the material includes the component of following mass parts to one kind：
95~105 parts of polymeric matrix（Both end value is included, also including the arbitrfary point value between end value）, 100~150 parts of inorganic filler（Both end value is included, also including the arbitrfary point value between end value）, 18~22 parts of liquid polybutadiene（Both end value is included, also including the arbitrfary point value between end value）, 10~15 parts of epoxy resin（Both end value is included, also including the arbitrfary point value between end value）, 7~9 parts of vulcanization of rubber defoamer（Both end value is included, also including the arbitrfary point value between end value）, 5.5~6.5 parts of activating agent（Both end value is included, also including the arbitrfary point value between end value）, 2.3~2.7 parts of age resistor,（Both end value is included, also including the arbitrfary point value between end value）, 2.3~2.7 parts of accelerator（Both end value is included, also including the arbitrfary point value between end value）, 1.9~2.1 parts of sulphur（Both end value is included, also including the arbitrfary point value between end value）, 9~11 parts of carbon black（Both end value is included, also including the arbitrfary point value between end value）.
The rubber used in following examples is butyl rubber；The grafting rate of maleic anhydride grafting EVA is 1.0~1.5%, and melt index is (190 DEG C, 2.16kg)：0.8-1.5g/10min.
The barium sulfate and talcum Powder Particle Size used in following examples are 1250 mesh.
The liquid polybutadiene used in following examples is CTPB, and its carboxyl-content is 0.03~0.07mol/100g, and molecular weight is 2500.
The described epoxy resin trade mark used in following examples is E-31, and epoxide equivalent is 265-435g/eq.
The vulcanization of rubber defoamer used in following examples is that Surface coating processes calcium oxide, calcium oxide content 90~95%；Activating agent is zinc oxide and stearic acid；Age resistor is age resistor 445；Accelerator is the balanced constant of accelerator PZ and TRA composition；Sulphur is insoluble sulfur；Carbon black is N-330 carbon blacks；Above-mentioned compounding ingredient is rubber often with compounding ingredient, is commercially available prod.
According in table 1（Both end value is included, also including the arbitrfary point value between end value）The formula of example 1~5, by 100 parts of butyl rubber and maleic anhydride grafting EVA first at 100~130 DEG C, 100~150 parts of inorganic fill reinforcing agent, 20 parts of liquid polybutadienes, 10 parts of carbon blacks, 2.5 parts of age resistor, 8 parts of vulcanization of rubber defoamers, be added in banbury and knead 6~10 minutes, it is well dispersed in polymeric matrix, then on a mill will 10~15 parts of epoxy resin and vulcanizing system add above-mentioned masterbatch in knead into elastomeric compound；It is the offset plate of 2 ± 0.3mm to use offset plate extruder that elastomeric compound is shaped into thickness；Damping fin performance test vulcanizate preparation method of sample is identical with its actual laminating mounting process process, i.e.,：Using 180 DEG C（Or 190）Air oven vulcanization in × 30 minutes, when preparing pure glue test piece, with polytetrafluoroethylene film will unvulcanized offset plate one side isolate after be laid on iron plate be put into baking oven vulcanize, prepare bonding sample by when, be put into after unvulcanized offset plate is directly fitted with the metal test plate (panel) of surface cleaning baking oven vulcanize.
The hardness of gained vulcanizate sample is tested according to standard GB/T531.1-2008；The tensile property of gained vulcanizate sample is tested according to standard GB/T528-2009；According to standard GB/T
7760-2003 tests the bonding strength of rubber damping piece and metal test plate (panel)；The thermal aging property of vulcanizate is tested according to standard GB/T 3512-2001；The fissipation factor and damping temperature domain of rubber damping sheet material are tested using DMA Q800 type dynamic mechanical analyzers under stretch mode.The above is surveyed results of property and is listed in Table 2 below.
Comparative example 1~3：
Formula such as table -1, prepared by sample and performance test methods are identical with embodiment 1~5, and test result is listed in table -2.
Be can be seen that according to experimental data in table 2, the resistance to elevated temperatures of embodiment 1~5, mechanical property, fire resistance and bond properties are superior to comparative example 1 ~ 3, illustrate that the technology used in the present invention measure is effective, a kind of non-pressure cure cohesive high-performance rubber damping fin has been prepared, expected purpose has been reached.
Table -1
Table -2
It is to be understood that：The detailed word description although above-described embodiment is contrasted to mentality of designing of the invention; but these word descriptions; simply the simple text to mentality of designing of the present invention is described; rather than the limitation to mentality of designing of the present invention; any combination, increase or modification without departing from mentality of designing of the present invention, each falls within protection scope of the present invention.
Claims (10)
1. one kind is without pressure heat cure adhesion type high-performance rubber damping fin material, it is characterized in that the raw material of the material includes the component of following mass parts：
Polymeric matrix
95~105 parts,
Inorganic filler
100~150 parts,
Liquid polybutadiene
18~22 parts,
Epoxy resin
10~15 parts,
Vulcanization of rubber defoamer
7~9 parts,
Activating agent
5.5~6.5 parts,
Age resistor
2.3~2.7 parts,
Accelerator
2.3~2.7 parts,
1.9~2.1 parts of sulphur,
Carbon black
9~11 parts.
2. according to claim 1 without pressure heat cure adhesion type high-performance rubber damping fin material, it is characterized in that the optimum ratio of the material is：
Polymeric matrix
100 parts,
Inorganic filler
100~150 parts,
Liquid polybutadiene
20,
Epoxy resin
10~15 parts,
Vulcanization of rubber defoamer
8 parts,
Activating agent
6 parts,
Age resistor
2.5 parts,
Accelerator
2.5 parts,
Sulphur
2.0 parts,
Carbon black
10 parts.
3. according to claim 1 without pressure heat cure adhesion type high-performance rubber damping fin material, its feature：Described polymeric matrix is the blend that butyl rubber is grafted EVA with maleic anhydride, and the blending ratio of the two is 70：30~90：10.
4. according to claim 3 without pressure heat cure adhesion type high-performance rubber damping fin material, its feature：The crude rubber Mooney viscosity of described butyl rubber is ML1+4 125 ℃=27~36；The grafting rate of described maleic anhydride grafting EVA is 1.0~1.5%, and melt index is (190 DEG C, 2.16kg)：0.8-1.5g/10min.
5. according to claim 1 without pressure heat cure adhesion type high-performance rubber damping fin material, it is characterized in that：Described inorganic filler is barium sulfate and talcum powder, and the mixing ratio of the two is 50：50~70：30；Described barium sulfate and talcum Powder Particle Size is 1250 mesh.
6. according to claim 1, without pressure heat cure adhesion type high-performance rubber damping fin material, it is characterized in that：Described liquid polybutadiene is CTPB, and its carboxyl-content is 0.03~0.07mol/100g, and molecular weight is 2500.
7. according to claim 1, without pressure heat cure adhesion type high-performance rubber damping fin material, it is characterized in that：Described epoxy resin epoxy equivalent is 265-435g/eq.
8. according to claim 1 a kind of without pressure heat cure adhesion type high-performance rubber damping fin material, it is characterized in that：Described vulcanization of rubber defoamer, activating agent, age resistor, accelerator, sulphur and carbon black are rubber and often use compounding ingredient.
9. a kind of without the preparation method for pressing heat cure adhesion type high-performance rubber damping fin material, its feature the method is comprised the following steps：
（1）100 parts of butyl rubbers and maleic anhydride are grafted the blend of EVA, 100~150 parts of inorganic fillers, 20 parts of liquid polybutadienes, 10 parts of carbon blacks, 2.5 parts of age resistor, 8 parts of vulcanization of rubber defoamers, it is added in banbury, at 100~130 DEG C, kneaded 6~10 minutes under conditions of 36~50r.p.m of rotor speed, knead into masterbatch；
（2）Then at normal temperatures with mill by epoxy resin, activating agent kneads into elastomeric compound in accelerator and the above-mentioned masterbatch of sulphur addition；
（3）Elastomeric compound is shaped to by damping slab rubber using high pressure extruder, is needed according to Automobile Design to cut into the qualified rubber damping piece of regulation shape and size again when using.
10. a kind of method without the bonding of pressure heat cure adhesion type high-performance rubber damping fin material and body of a motor car metal surface, it is characterized in that：
（1）The geomery at the position pasted according to needed for automobile cuts out damping slab rubber, so as to obtain qualified rubber damping piece；
（2）Qualified rubber damping piece is placed in the glued part of automobile, so automobile is sent into application drying room；According to painting dressing automobiles drying room baking vanish operation, rubber damping piece is set to be pasted onto on body of a motor car metal surface without pressure heat cure in hot-air drying tunnel.
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| CN201510865896.4A CN106810774A (en) | 2015-12-01 | 2015-12-01 | Without pressure heat cure adhesion type high-performance rubber damping fin material |
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| CN201510865896.4A CN106810774A (en) | 2015-12-01 | 2015-12-01 | Without pressure heat cure adhesion type high-performance rubber damping fin material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108752930A (en) * | 2018-05-21 | 2018-11-06 | 合肥仁德电子科技有限公司 | A kind of use for electronic products high damping material and preparation method thereof |
| CN109337257A (en) * | 2018-09-29 | 2019-02-15 | 嘉科（无锡）密封技术有限公司 | A kind of metal strong seal rubber and preparation method thereof |
| CN111004468A (en) * | 2019-11-27 | 2020-04-14 | 安徽欣鼎高分子材料有限公司 | Preparation method and application of damping shock-absorbing rubber |
| CN115260665A (en) * | 2022-08-22 | 2022-11-01 | 浙江顺豪新材料有限公司 | Environment-friendly low-smoke halogen-free high-flame-retardant butyl rubber damping sheet and preparation method thereof |
| CN115960419A (en) * | 2022-12-27 | 2023-04-14 | 安徽顺豪新材料科技有限公司 | Preparation process of high-thermal-stability automobile damping film |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108752930A (en) * | 2018-05-21 | 2018-11-06 | 合肥仁德电子科技有限公司 | A kind of use for electronic products high damping material and preparation method thereof |
| CN109337257A (en) * | 2018-09-29 | 2019-02-15 | 嘉科（无锡）密封技术有限公司 | A kind of metal strong seal rubber and preparation method thereof |
| CN111004468A (en) * | 2019-11-27 | 2020-04-14 | 安徽欣鼎高分子材料有限公司 | Preparation method and application of damping shock-absorbing rubber |
| CN111004468B (en) * | 2019-11-27 | 2023-03-28 | 安徽欣鼎高分子材料有限公司 | Preparation method and application of damping shock-absorbing rubber |
| CN115260665A (en) * | 2022-08-22 | 2022-11-01 | 浙江顺豪新材料有限公司 | Environment-friendly low-smoke halogen-free high-flame-retardant butyl rubber damping sheet and preparation method thereof |
| CN115260665B (en) * | 2022-08-22 | 2024-01-12 | 浙江顺豪新材料有限公司 | Environment-friendly low-smoke halogen-free high-flame-retardance butyl rubber damping sheet and preparation method thereof |
| CN115960419A (en) * | 2022-12-27 | 2023-04-14 | 安徽顺豪新材料科技有限公司 | Preparation process of high-thermal-stability automobile damping film |
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Application publication date: 20170609 |
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