CN103707590A - Buoyancy material with composite sandwich damping structure and preparation technology of material - Google Patents
Buoyancy material with composite sandwich damping structure and preparation technology of material Download PDFInfo
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- CN103707590A CN103707590A CN201310733298.2A CN201310733298A CN103707590A CN 103707590 A CN103707590 A CN 103707590A CN 201310733298 A CN201310733298 A CN 201310733298A CN 103707590 A CN103707590 A CN 103707590A
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- damping
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- buoyant material
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Abstract
The invention relates to a buoyancy material with a composite sandwich damping structure. The buoyancy material comprises a core material, a plane materiel and a damping coating, wherein the core material is a buoyancy material module; the buoyancy material module comprise epoxy resin, an epoxy reactive diluent, a curing agent, a silane coupling agent and hollow glass beads. The solid buoyancy material module is formed by the processes of premixing, kneading, mould pressing, curing and cutting into solids; the plane material is high-rigidity fiber-enhanced epoxy glass steel, sheet steel or an aluminium alloy plate; the damping coating is a polyether urethane elastomer which is coated between the core material and the core material, between the core material and the plane material, and between the plane material and the plane material. By adopting the buoyancy material disclosed by the invention, the traditional buoyancy material has higher waterproof sealing property and damping property, so that the solid buoyancy material is wider in application range.
Description
Technical field
The present invention relates to a kind of polyalcohol-base light composite, be specifically related to a kind of sandwich composite damping structure buoyant material and preparation technology thereof.
Background technology
At Aeronautics and Astronautics, navigation and other engineering fields, to thering is the demand of low-density, high rigidity, large damping vibration attenuation composite, constantly increase at present, because core filled composite material has good specific stiffness, specific strength, large damping characteristic, be widely used in naval vessels, submersible vibration damping, absorb sound, provide the field of buoyancy.Along with the development of damping vibration attenuation technology, from free damping coating, develop into gradually damping-constraining coating structure and insert damping coating structure.Damping is laid form and also from individual layer damping, is developed into multilayer damping structure, and process at the interval of multilayer damping multilayer constraint, has become a kind of main process form that lays in sandwich composite construction.
Chinese patent CN 201110037996.X has reported a kind of sandwich damp composite material, skin, internal layer and damping coating, consists of.Its ectomesoderm is structure sheaf, is that a kind of high rigidity fibers strengthens polymer matrix composites, and internal layer is sandwich of layers, rigid foam, consists of.Damping coating is between structure sheaf and structure sheaf or between structure sheaf and sandwich of layers.The skin of material and internal layer form sandwich structure jointly, so that the Rigidity and strength of material monolithic to be provided, make material have higher structural damping vibration and noise reducing performance.
US Patent No. P4,021,589, USP 5,973, and a kind of hollow glass micropearl of 031 report is filled the buoyant material that unsaturated polyester resin is manufactured.By unsaturated polyester (UP), methyl ethyl ketone peroxide is that curing agent is prepared mylar matrix.Fill hollow glass micropearl and hollow polymer microsphere as falling low-density matrix composition buoyant material, protect the polymer matrix composite that polyethylene, polyurethane elastomer or glass fibre strengthen outside top layer, the density of buoyant material is 0.60g/cm
3. be a kind of buoyant material with clad.
Chinese patent CN200410030821.6 has reported the solid buoyancy material with sandwich prepared by a kind of chemical blowing process, by core and plane materiel, formed, core is a kind of high strength hard foamed plastics, and plane materiel is spray polyurethane elastic body, and this solid buoyancy material density is 0.33g/cm
3, compressive strength is 5.5Mpa.Above patent is not all reported the buoyant material preparation method with sandwich composite damping structure.
summary of the invention
The present invention overcomes the deficiencies in the prior art, a kind of sandwich composite damping structure buoyant material and preparation technology thereof are proposed, the object of this invention is to provide a kind of low-density, high rigidity, large Damped Sandwich composite construction solid buoyancy material, be characterized in adopting the polyurethane elastomer with good adhesion performance and damping capacity, as the gluing damping coating between core and core, core and plane materiel, plane materiel and plane materiel, make the multi-functional buoyant material of multilayer damping structure.Make traditional solid buoyancy material have higher waterproof sealing and damping capacity, make solid buoyancy material range of application more extensive.
Technical scheme of the present invention is, a kind of sandwich composite damping structure buoyant material, comprise core, plane materiel and damping coating, core is buoyant material module, buoyant material module comprises epoxy resin, epoxy active diluent, curing agent, silane coupler and hollow glass micropearl, through premix, mediate, mold pressing, solidify, cut into the buoyant material module of solid, the proportioning of buoyant material module is counted by 100 mass parts epoxy resin: epoxy resin 100, epoxy active diluent 20--25, curing agent 40-80, silane coupler 3--5, hollow glass micropearl 85-100, plane materiel is high rigidity fibers reinforced epoxy fiberglass, sheet metal or aluminium alloy plate, damping coating is EU elastomer, is coated between core and core, core and plane materiel, plane materiel and plane materiel, EU elastomer is a polyurethane elastomer damping coating, and polyurethane elastomer damping coating comprises A component and B component, and A component is isocyanates performed polymer, B component comprises hydroxy polyethers, amine chainextender, silicone defoaming agent, aluminium hydroxide, mica powder, organobentonite, silane coupler and filler, B component is counted with 100 mass parts PPGs: hydroxy polyethers 100, amine chainextender 30, silane coupler 12, silicone defoaming agent 6, filler 35, aluminium hydroxide 210, mica powder 35, organobentonite 1.5.
Preparation technology is:
The hollow glass micropearl of the epoxy resin of metering, epoxy active diluent, silane coupler, process grating is carried out to premixed, drop in kneader and mediate, add curing agent to mediate to material even;
Be placed in mould hot-forming, the demoulding is by solidifying and make solid buoyancy material blank later;
Blank through finishing is made buoyant material module through machined;
Buoyant material Modular surface is coated with damping coating, and coating outer surface is applied ointment or plaster plane materiel through room temperature or heating cure, and preparation has the solid buoyancy material of sandwich composite damping structure.
Epoxy resin described above: bisphenol A epoxide resin (E-51, E-52, E-44), bisphenol-s epoxy resin (830S), cycloaliphatic epoxy resin (H-71,6201) or heterocyclic-type epoxy resin (TDE-85,712).
Epoxy active diluent described above: n-butyl glycidyl ether (BGE), phenyl glycidyl ether (PGE), diglycidyl ether (DGE), diglycidylaniline (DGA) or trihydroxymethylpropanyltri diglycidyl ether (TMPGE).
Curing agent described above: polyamide (300#, 400#, 650,651), acid anhydrides (MeTHPA), aromatic polyamine (DDM, DDS), fatty amine (593) or alicyclic polyamine (IPDA).
Silane coupler described above: 3-(2,3-glycidoxy) propyl trimethoxy silicane (KH560), 3-aminopropyl trimethoxysilane (KH550) or r-methacryloxypropyl trimethoxy silane (KH570).
Hollow glass micropearl described above: the U.S.'s three M company hollow glass micropearls, density range 0.125-0.60g/cm
3, Bangbu frp industry design and research institute hollow glass micropearl, density range 0.22-0.51g/cm
3, Ma'an Mountain mine research institute hollow glass micropearl, density range 0.15-0.60g/cm
3.
the present invention has following beneficial effect:,
The invention provides a kind of low-density, high rigidity, large Damped Sandwich composite construction solid buoyancy material, be characterized in adopting the polyurethane elastomer with good adhesion performance and damping capacity, as the gluing damping coating between core and core, core and plane materiel, plane materiel and plane materiel, make the multi-functional buoyant material of multilayer damping structure.The invention enables traditional solid buoyancy material to have higher waterproof sealing and damping capacity, make solid buoyancy material range of application more extensive.
The specific embodiment:
embodiment 1
?take 1200 grams of epoxy resin, 280 grams of epoxy active diluents, 55 grams of silane couplers, input has in the premixing tank of agitator, liquid material is stirred, drop into 1100 grams through the hollow glass micropearl premixed of grating in batches, premixed material is dropped in 10 liters of kneaders, mediate 15 minutes.Add 360 gram 3,3
,-diethyl 4,4
,-diaminodiphenyl-methane, 150 grams of IPD curing agent, continue to mediate 60 minutes even to mixing of materials.Discharging is inserted in inner cavity size 200 * 200 * 100mm mould, hot-press solidifying moulding, and the demoulding is solidified 4 hours after 130 ℃, makes solid buoyancy material blank, and blank is made buoyant material module through machined.Density of material 0.517g/cm
3, uniaxial compressive strength 34.2Mpa, hollow glass micropearl volume fraction 64.0 %
embodiment 2
?take 180 grams of epoxy resin, 45 grams of epoxy active diluents, 11 grams of silane couplers, input has in the premixing tank of agitator, under room temperature, material stirring is even, drops into 180 grams through the hollow glass micropearl premixed of grating in batches, premixed material is dropped in kneader, mediate 15 minutes.Add 136 grams of methyl tetrahydrophthalic anhydrides, 9 grams of 2-ethyl-4-methylimidazole catalyst, continue to mediate 60 minutes even to mixing of materials.It is in 120 * 120 * 50mm mould that inner cavity size is inserted in discharging, hot-press solidifying moulding, and the demoulding is solidified 4 hours after 140 ℃, makes solid buoyancy material blank, and blank is made buoyant material module through machined.Density of material 0.515g/cm
3, uniaxial compressive strength 31.6Mpa, hollow glass micropearl volume fraction 64.4 %.
embodiment 3
The preparation of damping coating: damping layer is a kind of EU elastomer, consists of A, B two components, and A component is isocyanates performed polymer; B component is the compositions such as hydroxy polyethers, amine chainextender, silane coupler, damping filler.
The preparation of A component:
Take 400 grams of D-2000 PPGs in 1000ml there-necked flask, be heated to 100--110 ℃ of vacuum dehydration 1 hour.Cool to below 60--70 ℃, drop into 300 grams of MDI-50 polyisocyanates, be heated to 80 ℃ of prepolymerization reactions 2 hours, discharging is placed in airtight container.Sampling and testing free isocyanate content 10%.
The preparation of B component:
Weigh following each component, in agitation grinding dispersion machine, grinding distribution is evenly prepared B component.
B component is in 100 mass parts PPGs: D-2000 PPG 100, amine chainextender 30, silicone defoaming agent 6, silane coupler 12, hindered phenol damping filler 35, aluminium hydroxide 210, mica powder 35, organobentonite 1.5.
Take A, B two components is 100 to 200 preparation damping coatings in mass ratio, and coating performance is as follows:
25 ℃≤6h of surface drying,
Do solid work 25 ℃≤24h
Bond strength >=5Mpa with base material
Free damping fissipation factor, average T an δ >=1.0
embodiment 4
The buoyant material module of embodiment 1 preparation, the damping coating of surface coating 2--3mm embodiment 3 preparations, cold curing is solidified 4 hours for 1 week or 80 ℃, makes free damping composite construction buoyant material.
embodiment 5
The buoyant material module of embodiment 2 preparations, damping coating in two intermodule coating 2--3mm embodiment, 3 preparations, gluing becomes sandwich structure as core, core surface applies damping coating again, through cold curing, within 1 week or 80 ℃, solidify 4 hours, make free damping sandwich composite construction buoyant material.
embodiment 6
The buoyant material module of embodiment 1 preparation is as core, and the damping coating of core surface coating 2--3mm embodiment 3 preparations is as sandwich damping layer, and plane materiel is glass fiber reinforcement epoxy fiberglass.Between core and plane materiel, form damping-constraining sandwich composite construction buoyant material.
embodiment 7
The buoyant material module of embodiment 1 preparation, damping coating in two intermodule coating 2--3mm embodiment, 3 preparations, gluing becomes sandwich structure as core, the damping coating of core surface coating 2--3mm embodiment 3 preparations, plane materiel is two layers of thin steel plate or the glass epoxy of interlayer coating damping layer, forms the sandwich composite construction of multilayer damping multilayer constraint.The sandwich composite construction buoyant material performance of being prepared by embodiment 4#, 5#, 6#, 7# is listed in table 1:
Table 1 material property parameter table
Claims (3)
1. a sandwich composite damping structure buoyant material, it is characterized in that: comprise core, plane materiel and damping coating, core is buoyant material module, buoyant material module comprises epoxy resin, epoxy active diluent, curing agent, silane coupler and hollow glass micropearl, through premix, mediate, mold pressing, solidify, cut into the buoyant material module of solid, the proportioning of buoyant material module is counted by 100 mass parts epoxy resin: epoxy resin 100, epoxy active diluent 20--25, curing agent 40-80, silane coupler 3--5, hollow glass micropearl 85-100, plane materiel is high rigidity fibers reinforced epoxy fiberglass, sheet metal or aluminium alloy plate, damping coating is EU elastomer, is coated between core and core, core and plane materiel, plane materiel and plane materiel, EU elastomer is a polyurethane elastomer damping coating, and polyurethane elastomer damping coating comprises A component and B component, and A component is isocyanates performed polymer, B component comprises hydroxy polyethers, amine chainextender, silicone defoaming agent, aluminium hydroxide, mica powder, organobentonite, silane coupler and filler, B component is counted with 100 mass parts PPGs: hydroxy polyethers 100, amine chainextender 30, silane coupler 12, silicone defoaming agent 6, filler 35, aluminium hydroxide 210, mica powder 35, organobentonite 1.5.
2. sandwich composite damping structure buoyant material according to claim 1, is characterized in that: its preparation technology is:
The hollow glass micropearl of the epoxy resin of metering, epoxy active diluent, silane coupler, process grating is carried out to premixed, drop in kneader and mediate, add curing agent to mediate to material even;
Be placed in mould hot-forming, the demoulding is by solidifying and make solid buoyancy material blank later;
Blank through finishing is made buoyant material module through machined;
Buoyant material Modular surface is coated with damping coating, and coating outer surface is applied ointment or plaster plane materiel through room temperature or heating cure, and preparation has the solid buoyancy material of sandwich composite damping structure.
3. sandwich composite damping structure buoyant material according to claim 1 and 2, is characterized in that: epoxy resin described above is: bisphenol A epoxide resin (E-51, E-52, E-44), bisphenol-s epoxy resin (830S), cycloaliphatic epoxy resin (H-71,6201) or heterocyclic-type epoxy resin (TDE-85,712);
Epoxy active diluent described above is: n-butyl glycidyl ether (BGE), phenyl glycidyl ether (PGE), diglycidyl ether (DGE), diglycidylaniline (DGA) or trihydroxymethylpropanyltri diglycidyl ether (TMPGE);
Curing agent described above is: polyamide (300#, 400#, 650,651), acid anhydrides (MeTHPA), aromatic polyamine (DDM, DDS), fatty amine (593) or alicyclic polyamine (IPDA);
Silane coupler described above is: 3-(2,3-glycidoxy) propyl trimethoxy silicane (KH560), 3-aminopropyl trimethoxysilane (KH550) or r-methacryloxypropyl trimethoxy silane (KH570);
Hollow glass micropearl density range described above is 0.125-0.60g/cm
3, 0.22-0.51g/cm
3or 0.15-0.60g/cm
3.
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Cited By (9)
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|---|---|---|---|---|
| CN104149404A (en) * | 2014-07-14 | 2014-11-19 | 华南理工大学 | Fiber-reinforced foam gradient thermal-insulation vibration-reduction laminated plate |
| CN104149400A (en) * | 2014-07-14 | 2014-11-19 | 华南理工大学 | Double-spiral fiber reinforced foam laminated plate |
| CN104527181A (en) * | 2015-01-19 | 2015-04-22 | 青岛海洋新材料科技有限公司 | Epoxy foamed sandwich composite material and preparation method thereof |
| CN106751530A (en) * | 2017-01-19 | 2017-05-31 | 黑龙江省科学院石油化学研究院 | A kind of composite material sandwich structure co-curable lightweight high rigidity core and its preparation method and application |
| CN107692845A (en) * | 2016-08-09 | 2018-02-16 | 佛山市顺德区美的电热电器制造有限公司 | Pot and electromagnetism cooking equipment |
| US10611100B2 (en) | 2015-06-12 | 2020-04-07 | 3M Innovative Properties Company | Buoyancy module |
| CN111187487A (en) * | 2019-12-23 | 2020-05-22 | 河南泛锐复合材料研究院有限公司 | High-damping composite foam and preparation method thereof |
| CN111559137A (en) * | 2020-05-21 | 2020-08-21 | 燕山大学 | Preparation process of silane surface modified fiber reinforced metal composite board |
| CN115058098A (en) * | 2022-07-28 | 2022-09-16 | 东莞城市学院 | Preparation method of light porous composite sandwich material wall |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149404A (en) * | 2014-07-14 | 2014-11-19 | 华南理工大学 | Fiber-reinforced foam gradient thermal-insulation vibration-reduction laminated plate |
| CN104149400A (en) * | 2014-07-14 | 2014-11-19 | 华南理工大学 | Double-spiral fiber reinforced foam laminated plate |
| CN104527181A (en) * | 2015-01-19 | 2015-04-22 | 青岛海洋新材料科技有限公司 | Epoxy foamed sandwich composite material and preparation method thereof |
| US10611100B2 (en) | 2015-06-12 | 2020-04-07 | 3M Innovative Properties Company | Buoyancy module |
| CN107692845A (en) * | 2016-08-09 | 2018-02-16 | 佛山市顺德区美的电热电器制造有限公司 | Pot and electromagnetism cooking equipment |
| CN107692845B (en) * | 2016-08-09 | 2023-07-28 | 佛山市顺德区美的电热电器制造有限公司 | Pot and electromagnetic cooking equipment |
| CN106751530A (en) * | 2017-01-19 | 2017-05-31 | 黑龙江省科学院石油化学研究院 | A kind of composite material sandwich structure co-curable lightweight high rigidity core and its preparation method and application |
| CN106751530B (en) * | 2017-01-19 | 2019-10-08 | 黑龙江省科学院石油化学研究院 | A kind of composite material sandwich structure co-curable lightweight high rigidity core material and its preparation method and application |
| CN111187487A (en) * | 2019-12-23 | 2020-05-22 | 河南泛锐复合材料研究院有限公司 | High-damping composite foam and preparation method thereof |
| CN111559137A (en) * | 2020-05-21 | 2020-08-21 | 燕山大学 | Preparation process of silane surface modified fiber reinforced metal composite board |
| CN115058098A (en) * | 2022-07-28 | 2022-09-16 | 东莞城市学院 | Preparation method of light porous composite sandwich material wall |
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Application publication date: 20140409 |