CN107813559A - Wire netting sandwich composite damping material and preparation method thereof - Google Patents

Wire netting sandwich composite damping material and preparation method thereof Download PDF

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Publication number
CN107813559A
CN107813559A CN201711007156.2A CN201711007156A CN107813559A CN 107813559 A CN107813559 A CN 107813559A CN 201711007156 A CN201711007156 A CN 201711007156A CN 107813559 A CN107813559 A CN 107813559A
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China
Prior art keywords
wire netting
damping material
sandwich composite
composite damping
wire
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CN201711007156.2A
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Chinese (zh)
Inventor
刘晓东
崔向红
苏桂明
李天智
姜海键
陈明月
方雪
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Institute of Advanced Technology of Heilongjiang Academy of Sciences
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Institute of Advanced Technology of Heilongjiang Academy of Sciences
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Priority to CN201711007156.2A priority Critical patent/CN107813559A/en
Publication of CN107813559A publication Critical patent/CN107813559A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/02—Layer formed of wires, e.g. mesh
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/092—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising epoxy resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/095—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/18—Handling of layers or the laminate
    • B32B38/1808—Handling of layers or the laminate characterised by the laying up of the layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/58—Epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/6576—Compounds of group C08G18/69
    • C08G18/6582—Compounds of group C08G18/69 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6594—Compounds of group C08G18/69 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of C08G18/3225 or C08G18/3271 or polyamines of C08G18/38
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/69—Polymers of conjugated dienes
    • C08G18/698—Mixtures with compounds of group C08G18/40
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/42—Alternating layers, e.g. ABAB(C), AABBAABB(C)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/103—Metal fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/38—Meshes, lattices or nets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/552—Fatigue strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/12—Ships
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/18—Aircraft

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

Wire netting sandwich composite damping material and preparation method thereof, the present invention relates to composite damping material and preparation method thereof, and the present invention is to solve the narrow technical problem of the damping temperature domain of existing damping sound insulating material.The wire netting sandwich composite damping material of the present invention is that the polyurethane high molecule elastomer being modified by epoxy resin graft is combined with woven wire.Preparation method：First, the pretreatment of wire netting；2nd, the base polyurethane prepolymer for use as of epoxy resin graft modification is prepared；3rd, Diamines chain extender is added in performed polymer to stir, obtain potting syrup；4th, wire netting is put in a mold, then potting syrup is cast in die cavity, after solidification, obtain wire netting sandwich composite damping material.The damping temperature domain of the material is 60 DEG C~130 DEG C, available for security protection, Hyundai Motor, ship, aerospace field.

Description

Wire netting sandwich composite damping material and preparation method thereof
Technical field
The present invention relates to composite damping material and preparation method thereof, belongs to the locally resonant acoustics based on quality spring structure Materials theory field.
Background technology
Traditional damping layer material is to add one or more reinforcing materials (e.g., long fibre, whisker, nanoparticle by matrix Sub- particle, microballon etc.) what is be combined has the heterogeneous material of scattered, embedded composition, as fibre reinforced composites, The composites such as granules composite material, functional material are applied in some structures, but this kind of reinforcing material is in the base Concentration degree and two kinds of materials mutual internal contiguity in terms of limitation be present so that the intensity of composite is small, and And damping is poor.The 5th phase of volume 37 in 2009《Chemical Industry in Guangzhou》Upper disclosed article《Alternate multiple TPU/SEBS composite woods Material damping sound insulation property research》The laminar composite that TPU layer is alternately arranged with SEBS layers, its damping temperature domain are prepared in one text Between -44~3 degree, while its tensile strength is 4.5~20MPa, but the damping temperature domain of this material is narrow, can not meet the modern times Requirement of the fields such as automobile, ship, Aero-Space for this material.
The content of the invention
The present invention is to solve the narrow technical problem of the damping temperature domain of existing damping sound insulating material, and provide a kind of metal Net sandwich structure composite damping material and preparation method thereof.
The wire netting sandwich composite damping material of the present invention is the polyurethane high molecule being modified by epoxy resin graft Elastomer is combined with woven wire, and wherein woven wire is single or multiple lift；
The preparation method of above-mentioned wire netting sandwich composite damping material, is carried out according to the following steps：
First, the pretreatment of wire netting：Wire netting is dipped in the dilution heat of sulfuric acid that mass percentage concentration is 5%~20% and steeped 20~30min, it is then 5%NaCO with mass percentage concentration except degreasing3Solution neutralizes, and is rinsed with water, then use acetone soln Soak 1~2h, drying；Then it is dipped in again in the silane coupler solution that mass percentage concentration is 0.5%~2% and soaks 2~4h With increase and resin boundary surface cementation, drying；
2nd, the base polyurethane prepolymer for use as of epoxy resin graft modification is prepared：By terminal hydroxy group polyalcohol in true under the conditions of 110 DEG C Sky removing moisture, aliphatic diisocyanate is added dropwise after being cooled to 50~60 DEG C, then be warming up to 80~85 DEG C and keep reaction 3~ 4h, obtain polyurethane prepolymer；Wherein the isocyanic acid of aliphatic two and polyol mole ratio are (2.2~2.3)：1；By epoxy resin E-51 vacuum removal moisture under the conditions of 110 DEG C, is added in polyurethane prepolymer, is warming up to 120~130 DEG C and keeps reaction 3 ~4 hours, obtain the base polyurethane prepolymer for use as of epoxy resin graft modification；
3rd, 15%~25% Diamines chain extender is weighed by mass percentage and 75%~85% epoxy resin graft is modified Base polyurethane prepolymer for use as；Then performed polymer is placed in 20~30min of vacuumize process in 110~115 DEG C of vacuum drying oven, taken out Diamines chain extender is added afterwards, is stirred for 2~3min, then is placed in vacuum drying oven and vacuumizes 2~3min, obtains potting syrup；
4th, wire netting is put in a mold, surrounding, which is fixed, makes it respectively identical to tension force, then potting syrup is cast in into die cavity In, then solidify 20~24 hours in temperature is 95~120 DEG C of thermostatic drying chambers, obtain wire netting sandwich composite damping Material.
The present invention is by with the addition of Diamines chain extender and then pour in the base polyurethane prepolymer for use as that is modified in epoxy resin graft Injection forming, using " locally resonant " power consumption mechanism of phonon crystal, low frequency absorption performance and damping capacity are improved, realizes " small chi The very little big wavelength of control ", it is a kind of lightweight damping sound insulation composite material.
The wire netting sandwich composite damping material of the present invention is when temperature in use is higher than glass transition temperature Tg, effective damping The factor (tan δ>0.3) a preferable damping capacity can be kept within the temperature range of 60 DEG C~130 DEG C.
It is compound to have lightweight, the excellent viscoelastic damping of damping concurrently for the wire netting sandwich composite damping material of the present invention simultaneously Material.Polyurethane elastomer can have higher elasticity and intensity, excellent wearability, oil resistant in wider hardness range Property, fatigue durability and vibration resistance.Wire netting is filled into a kind of efficiently economic composite construction is may make up in polyurethane material, With excellent shock resistance energy absorption performance, fatigue properties and fracture property.
The wire netting sandwich composite damping material of the present invention is in engineering protection, building reinforcing, military project cause, shock resistance The fields such as security protection, Hyundai Motor, ship, Aero-Space all have broad application prospects, especially to national defense construction, again Large-engineering and industrial structure upgrading have important impetus.
Brief description of the drawings
Fig. 1 is the structural representation of individual layer copper mesh sandwich composite damping material prepared by embodiment 1；Wherein 1 is copper Net, 2 be the polyurethane high molecule elastomer that epoxy resin graft is modified；
Fig. 2 is the dynamic mechanical curve map of individual layer copper mesh sandwich composite damping material prepared by embodiment 1；
Fig. 3 is the structural representation of individual layer copper mesh sandwich composite damping material prepared by embodiment 2；Wherein 1 is copper Net, 2 be the polyurethane high molecule elastomer that epoxy resin graft is modified.
Embodiment
Embodiment one：The wire netting sandwich composite damping material of present embodiment is by epoxy resin graft Modified polyurethane high molecule elastomer is combined with woven wire, and wherein woven wire is single or multiple lift；
Embodiment two：Present embodiment is brass screen, purple from woven wire unlike embodiment one Copper mesh or steel mesh；It is other identical with embodiment one.
Embodiment three：The wire of present embodiment woven wire unlike embodiment one or two For plain weave or twill weave；It is other identical with embodiment one or two.
Embodiment four：The mesh of woven wire unlike one of present embodiment and embodiment one to three Number is 10~100 mesh；It is other identical with one of embodiment one to three.
Embodiment five：The gold of woven wire unlike one of present embodiment and embodiment one to four Belong to a diameter of 0.06 millimeter~0.5 millimeter of silk；It is other identical with one of embodiment one to four.
Embodiment six：The thickness of elastomer unlike one of present embodiment and embodiment one to five Based on every layer of 1 millimeter~3 centimetres of woven wire；It is other identical with one of embodiment one to five.
Embodiment seven：The preparation side of wire netting sandwich composite damping material described in embodiment one Method, carry out according to the following steps：
First, the pretreatment of wire netting：Wire netting is dipped in the dilution heat of sulfuric acid that mass percentage concentration is 5%~20% and steeped 20~30min, it is then 5%NaCO with mass percentage concentration except degreasing3Solution neutralizes, and is rinsed with water, then use acetone soak 1~2h, drying；Then it is dipped in again in the silane coupler solution that mass percentage concentration is 0.5%~2% and soaks 2~4h to increase Add and resin boundary surface cementation, drying；
2nd, the base polyurethane prepolymer for use as of epoxy resin graft modification is prepared：By terminal hydroxy group polyalcohol in true under the conditions of 110 DEG C Sky removing moisture, aliphatic diisocyanate is added dropwise after being cooled to 50~60 DEG C, then be warming up to 80~85 DEG C and keep reaction 3~ 4h, obtain polyurethane prepolymer；Wherein the isocyanic acid of aliphatic two and polyol mole ratio are (2.2~2.3)：1；By epoxy resin E-51 vacuum removal moisture under the conditions of 110 DEG C, is added in polyurethane prepolymer, is warming up to 120~130 DEG C and keeps reaction 3 ~4 hours, obtain the base polyurethane prepolymer for use as of epoxy resin graft modification；
3rd, 15%~25% Diamines chain extender is weighed by mass percentage and 75%~85% epoxy resin graft is modified Base polyurethane prepolymer for use as；Then performed polymer is placed in 20~30min of vacuumize process in 110~115 DEG C of vacuum drying oven, taken out Diamines chain extender is added afterwards, is stirred for 2~3min, then is placed in vacuum drying oven and vacuumizes 2~3min, obtains potting syrup；4th, Wire netting is put in a mold, surrounding, which is fixed, makes it respectively identical to tension force, then potting syrup is cast in die cavity, then in temperature To solidify 20~24 hours in 95~120 DEG C of thermostatic drying chambers, wire netting sandwich composite damping material is obtained.
Embodiment eight：Present embodiment and the silane unlike embodiment seven described in step 1 are even It is KH550, KH560 or KH570 to join agent；It is other identical with embodiment seven.
Embodiment nine：End of the present embodiment unlike embodiment seven or eight described in step 2 Hydroxyl polyol is end hydroxy butadiene (HTPB), PPG (PPG) or PTMG (PTMG)；It is other It is identical with embodiment six or seven.
Embodiment ten：Unlike one of present embodiment and embodiment seven to nine described in step 2 Aliphatic diisocyanate be IPDI (IPDI)；Other phases one of with embodiment seven to nine Together.
Embodiment 11：Institute in step 2 unlike one of present embodiment and embodiment seven to ten The Diamines chain extender stated is the chloro- 4,4'- diaminodiphenyl-methanes (MOCA) of 3,3'- bis- or 2,4- diaminourea -3,5- diformazans Sulfenyl chlorobenzene (TX-2)；It is other identical with one of embodiment seven to ten.
Beneficial effects of the present invention are verified with following examples：
Embodiment 1：The preparation method of the wire netting sandwich composite damping material of the present embodiment, is carried out according to the following steps：
First, the pretreatment of wire netting：The plain weave brass screen of 0.3 millimeter of string diameter, 2 millimeters of aperture, 10 mesh is dipped in quality hundred Point concentration is to steep 30min in 5% dilution heat of sulfuric acid, is then 5%NaCO with mass percentage concentration except degreasing3In solution With with deionized water rinsing, then with acetone soak 2h, drying；Then the KH550 silane that mass percentage concentration is 1% is dipped in again 3h is soaked in coupling agent solution to increase and resin boundary surface cementation, drying；
2nd, the base polyurethane prepolymer for use as of epoxy resin graft modification is prepared：By 230 grams of end hydroxy butadienes (HTPB) 110 Vacuum dehydration 2 hours at DEG C, until it is still, 100 grams of IPDIs (IPDI) are added, control temperature at 80 DEG C, Reaction 3h obtains prepolymer；Epoxy resin E-51 vacuum dehydrations at 110 DEG C are added to after 2 hours in 75 grams of prepolymers, are improved Reaction temperature is reacted 3 hours to 120 DEG C, obtains the performed polymer of epoxy resin graft modified polyurethane；
4th, the base polyurethane prepolymer for use as being modified by the epoxy resin graft of weight/mass percentage composition 80% is placed in 110 DEG C of vacuum baking Vacuumize process 30min in case, add the 20% prior Diamines chain extender 3 melted completely in 110 DEG C of baking ovens, 3'- bis- Chloro- 4,4'- diaminodiphenyl-methanes, quickly stir 3min, then are placed on vacuumizing and defoaming 3min in vacuum drying oven, are poured into a mould Liquid；
5th, the plain weave brass screen handled through step 1 of individual layer is placed in rectangular mould, mould long 12cm, wide 9cm, Groove depth 2mm；The potting syrup after deaeration is cast in die cavity again, then solidification 22 is small in temperature is 80 DEG C of thermostatic drying chambers When, obtain brass screen sandwich composite damping material.
The structural representation of brass screen sandwich composite damping material manufactured in the present embodiment is as shown in figure 1, its dynamic Force diagram as shown in Fig. 2 from figure 2 it can be seen that the damping temperature domain of brass screen sandwich composite damping material 60~ Between 130 DEG C, when frequency is 1Hz, maximum damping loss factor is 0.419, corresponding 77.9 DEG C of temperature.
Embodiment 2：The preparation method of the wire netting sandwich composite damping material of the present embodiment, is carried out according to the following steps：
First, the pretreatment of wire netting：The plain weave brass screen of 0.06 millimeter of string diameter, 0.22 millimeter 80 of aperture mesh is dipped in quality Percentage concentration is to steep 30min in 5% dilution heat of sulfuric acid, is then 5%NaCO with mass percentage concentration except degreasing3Solution Neutralize, with deionized water rinsing, then with acetone soak 2h, drying；Then the KH550 silicon that mass percentage concentration is 1% is dipped in again 3h is soaked in alkane coupling agent solution to increase and resin boundary surface cementation, drying；
2nd, the base polyurethane prepolymer for use as of epoxy resin graft modification is prepared：By 210 grams of end hydroxy butadienes (HTPB) 110 Vacuum dehydration 2 hours at DEG C, until it is still, 100 grams of IPDIs (IPDI) are added, control temperature at 80 DEG C, 3h is reacted, obtains prepolymer；Epoxy resin E-51 vacuum dehydrations at 110 DEG C add 65 grams into prepolymer after 2 hours, improve After reaction temperature is reacted 3 hours to 120 DEG C, the performed polymer of epoxy resin graft modified polyurethane is obtained；
4th, the base polyurethane prepolymer for use as being modified by the epoxy resin graft of weight/mass percentage composition 80% is placed in 110 DEG C of vacuum baking Vacuumize process 30min in case, add the 20% prior Diamines chain extender 3 melted completely in 110 DEG C of baking ovens, 3'- bis- Chloro- 4,4'- diaminodiphenyl-methanes, 3min is stirred, then be placed on vacuumizing and defoaming 3min in vacuum drying oven, obtain potting syrup；
5th, two layers of plain weave brass screen handled through step 1 is placed in rectangular mould, mould long 12cm, wide 9cm is recessed Groove depth 2mm；Potting syrup is cast in die cavity again, then solidifies 22 hours in temperature is 80 DEG C of thermostatic drying chambers, obtains Huang Copper mesh sandwich composite damping material.
The structural representation of brass screen sandwich composite damping material manufactured in the present embodiment is as shown in Figure 2.The brass The damping temperature domain of net sandwich structure composite damping material is between 60~130 DEG C.
Embodiment 3：The preparation method of the wire netting sandwich composite damping material of the present embodiment, is carried out according to the following steps：
First, the pretreatment of wire netting：By 0.06 millimeter of string diameter, 0.22 millimeter of aperture, the plain weave brass screen of 80 mesh are dipped in matter Amount percentage concentration is to steep 30min in 5% dilution heat of sulfuric acid, is then 5%NaCO with mass percentage concentration except degreasing3It is molten Liquid neutralizes, with deionized water rinsing, then with acetone soak 2h, drying；Then the KH550 that mass percentage concentration is 1% is dipped in again 3h is soaked in silane coupler solution to increase and resin boundary surface cementation, drying；
2nd, the base polyurethane prepolymer for use as of epoxy resin graft modification is prepared：By 210 grams of end hydroxy butadienes (HTPB) 110 Vacuum dehydration 2 hours at DEG C, until it is still, 100 grams of IPDIs (IPDI) are added, control temperature at 80 DEG C, Reaction 3h obtains prepolymer；Epoxy resin E-51 vacuum dehydrations at 110 DEG C add 68 grams into prepolymer after 2 hours, improve After reaction temperature is reacted 3 hours to 120 DEG C, the performed polymer of epoxy resin graft modified polyurethane is obtained.
4th, the base polyurethane prepolymer for use as being modified by the epoxy resin graft of weight/mass percentage composition 80% is placed in 110 DEG C of vacuum baking Vacuumize process 30min in case, 20% Diamines chain extender 2 is added, 4- diaminourea -3,5- dimethyl sulphur-based chlorobenzenes, is quickly stirred 3min is mixed, then is placed on vacuumizing and defoaming 3min in vacuum drying oven, obtains potting syrup；
5th, two layers of plain weave brass screen handled through step 1 is placed in rectangular mould, mould long 12cm, wide 9cm is recessed Groove depth 2mm；Potting syrup is cast in die cavity again, then solidifies 22 hours in temperature is 80 DEG C of thermostatic drying chambers, obtains Huang Copper mesh sandwich composite damping material.
The damping temperature domain of the brass screen sandwich composite damping material of the present embodiment is between 60~130 DEG C.

Claims (10)

1. a kind of wire netting sandwich composite damping material, it is characterised in that the material is gathered by what epoxy resin graft was modified Urethane macromolecular elastomer is combined with woven wire, and wherein woven wire is single or multiple lift.
A kind of 2. wire netting sandwich composite damping material according to claim 1, it is characterised in that tool woven wire For brass screen, red copper net or steel mesh.
A kind of 3. wire netting sandwich composite damping material according to claim 1 or 2, it is characterised in that woven wire Wire be plain weave or twill weave.
A kind of 4. wire netting sandwich composite damping material according to claim 1 or 2, it is characterised in that woven wire Mesh number be 10~100 mesh.
A kind of 5. wire netting sandwich composite damping material according to claim 1 or 2, it is characterised in that woven wire A diameter of 0.06 millimeter~0.5 millimeter of wire.
6. prepare a kind of method of wire netting sandwich composite damping material described in claim 1, it is characterised in that the party Method is carried out according to the following steps：
First, the pretreatment of wire netting：By wire netting be dipped in mass percentage concentration be 5%~20% dilution heat of sulfuric acid in bubble 20~ 30min, it is then 5%NaCO with mass percentage concentration except degreasing3Solution neutralize, rinsed with water, then with acetone soak 1~ 2h, drying；Then be dipped in again mass percentage concentration be 0.5%~2% silane coupler solution in soak 2~4h with increase with Resin boundary surface cementation, drying；
2nd, the base polyurethane prepolymer for use as of epoxy resin graft modification is prepared：By terminal hydroxy group polyalcohol under the conditions of 110 DEG C vacuum take off Moisture removal, aliphatic diisocyanate is added dropwise after being cooled to 50~60 DEG C, then is warming up to 80~85 DEG C and keeps 3~4h of reaction, Obtain polyurethane prepolymer；Wherein the isocyanic acid of aliphatic two and polyol mole ratio are (2.2~2.3)：1；By epoxy resin E- 51 under the conditions of 110 DEG C vacuum removal moisture, be added in polyurethane prepolymer, be warming up to 120~130 DEG C keep reaction 3~4 Hour, obtain the base polyurethane prepolymer for use as that epoxy resin graft is modified；
3rd, weigh by mass percentage 15%~25% Diamines chain extender and 75%~85% epoxy resin graft be modified it is poly- Urethane performed polymer；Then performed polymer is placed in 20~30min of vacuumize process in 110~115 DEG C of vacuum drying oven, added after taking-up Enter Diamines chain extender, be stirred for 2~3min, then be placed in vacuum drying oven and vacuumize 2~3min, obtain potting syrup；
4th, wire netting is put in a mold, surrounding, which is fixed, makes it respectively identical to tension force, then potting syrup is cast in die cavity, so Solidify 20~24 hours in temperature is 95~120 DEG C of thermostatic drying chambers afterwards, obtain wire netting sandwich composite damping material.
A kind of 7. preparation method of wire netting sandwich composite damping material according to claim 6, it is characterised in that Silane coupler described in step 1 is KH550, KH560 or KH570.
8. a kind of preparation method of wire netting sandwich composite damping material according to claim 6 or 7, its feature exist Terminal hydroxy group polyalcohol described in step 2 is end hydroxy butadiene, PPG or PTMG.
9. a kind of preparation method of wire netting sandwich composite damping material according to claim 6 or 7, its feature exist Aliphatic diisocyanate described in step 2 is IPDI.
10. a kind of preparation method of wire netting sandwich composite damping material according to claim 6 or 7, its feature Be Diamines chain extender described in step 2 for the chloro- 4,4'- diaminodiphenyl-methanes of 3,3'- bis- or 2,4- diaminourea- 3,5- dimethyl sulphur-based chlorobenzenes.
CN201711007156.2A 2017-10-25 2017-10-25 Wire netting sandwich composite damping material and preparation method thereof Pending CN107813559A (en)

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Publication number Priority date Publication date Assignee Title
CN110509473A (en) * 2019-08-23 2019-11-29 黑龙江省科学院高技术研究院 A kind of molding die and its application method of composite damping material
CN111138838A (en) * 2018-11-02 2020-05-12 衡水跃祥新材料科技有限公司 Polyurethane anti-dazzle net and production process thereof
CN114213776A (en) * 2021-12-31 2022-03-22 广东信力科技股份有限公司 Elastomer material, composite vibration damping base plate thereof and preparation method of base plate

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* Cited by examiner, † Cited by third party
Title
潘光君 等: "环氧树脂改性聚氨酯弹性体", 《青岛科技大学学报》 *
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111138838A (en) * 2018-11-02 2020-05-12 衡水跃祥新材料科技有限公司 Polyurethane anti-dazzle net and production process thereof
CN110509473A (en) * 2019-08-23 2019-11-29 黑龙江省科学院高技术研究院 A kind of molding die and its application method of composite damping material
CN114213776A (en) * 2021-12-31 2022-03-22 广东信力科技股份有限公司 Elastomer material, composite vibration damping base plate thereof and preparation method of base plate

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Application publication date: 20180320