CN105860493A - Eka-lead high-polymer composite material for shock-insulation brackets - Google Patents
Eka-lead high-polymer composite material for shock-insulation brackets Download PDFInfo
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- CN105860493A CN105860493A CN201610262877.7A CN201610262877A CN105860493A CN 105860493 A CN105860493 A CN 105860493A CN 201610262877 A CN201610262877 A CN 201610262877A CN 105860493 A CN105860493 A CN 105860493A
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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
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
- C08L71/03—Polyepihalohydrins
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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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
The invention relates to an eka-lead high-polymer composite material for shock-insulation brackets, belonging to the technical field of rubber. The organic clay is added into the epichlorohydrin rubber by melt intercalation to prepare the novel high-polymer composite material; and the high-polymer composite material has close mechanical properties and damping capacity to the lead metal. The added modified organic clay obviously enhances the stress under low strain conditions. The novel core hybrid material provided by the invention is used for shock-insulation brackets. The eka-lead high-polymer composite material for shock-insulation brackets has high-damping capacity, and can greatly enhance the damping ratio of the brackets. The shock-insulation bracket prepared from the novel core hybrid material has the characteristics of excellent damping capacity, low equivalent horizontal stiffness, high deformability under low seismic waves and the like, satisfies the demands for bridge practical application, and substitutes the lead core in the bracket.
Description
Technical field
The invention belongs to field of rubber technology, relate to a kind of shock isolating pedestal novel high polymer composite,
This material has the mechanical property close with lead metal and damping characteristic, can be used for building, isolation bridge
The replacement of high-damping lead for retractable pencil in bearing.
Background technology
Earthquake is a kind of sudden, and frequency is high, it is difficult to the natural calamity of prediction, the danger to human society
Evil is greatly.The secondary disaster of earthquake and initiation thereof causes building, the collapsing in a large number and break of bridge facility
Bad, make the lives and properties of the mankind bring about great losses.Compared with traditional firm method anti-seismic technology, based on " base
Plinth shock insulation concept " the damping effect of rubber earthquake isolation support the most excellent.In recent years, shock isolating pedestal is
Become world today's high anti-seismic, the important building of shockproof requirement, the preferred option of bridge.Shock insulation props up
Seat is as the critical elements of " base isolation ", and on the one hand its major function is supporting building, bridge
On the other hand weight, be the dynamic characteristics changing structural system, mainly extends building, bridge
Natural vibration period, thus effectively reduce its earthquake response.
At present, be most widely used in shock isolating pedestal is normal stack rubber support and lead-rubber
Bearing.(1) normal stack rubber support, general employing natural rubber manufacture, natural gum has Gao Rou
Property, the feature of high resiliency, high intensity, give the good vertical bearing capacity of bearing and horizontal shear and become
Shape ability.But the damping capacity of this bearing is poor, need and damper and with raising damping.By
Involve great expense in damper, limit the application of the type bearing；(2) lead core rubber support, be
In normal stack rubber support, vertically pour into one or more lead rod, thus improve the damping and amortization of bearing
Energy.But lead core rubber support equivalent level rigidity is high, often exceed critical field, when earthquake occurs,
Easily there is surrender fracture in lead for retractable pencil, automatic recovery ability declines.This external normal load, low periodic perturbations are made
Under with, the lead for retractable pencil in bearing produces tired failure by shear, and damping capacity declines.And lead for retractable pencil also can be right
Environment causes serious pollution.
Summary of the invention
Ekalead polymer composite belongs to field of rubber technology.The invention provides novel core hydridization
Material is used for shock mount: has high damping properties, can increase substantially the damping ratio of bearing.Adopt
The shock mount prepared with above-mentioned New-core material hybrid material has the damping capacity of excellence, equivalent level
Under the low and low seismic wave of rigidity, the feature such as yielding, meets the needs of the actual application of bridge, it is achieved that
The replacement of lead for retractable pencil in Zuo.
In order to solve above technical problem, present invention employs following proposal:
1, in terms of mass parts, core uses chlorohydrin rubber, fills a prescription as follows:
Wherein staple length is 3.0 ± 0.5mm.
2, the present invention provides a kind of novel ekalead polymer composite to prepare the bearing core former lead of replacement
Core, it is characterised in that: chopped fiber is nylon 66 fiber, a length of 3.0 ± 0.5mm.
3, the present invention provides a kind of novel ekalead polymer composite to prepare the bearing core former lead of replacement
Core, it is characterised in that: organic clay synthesis step is as follows: 10.0g sodium-based montmorillonite is added to 400mL
In deionized water, magnetic agitation 1h, stand 24h to complete swelling；Additionally by 4.00g intercalator ten
Eight alkyl trimethyl ammonium bromides join 100mL deionized water dissolving and obtain intercalant solution；Will be equipped with
The round-bottomed flask of the montmorillonite aqueous solution is put in 80 DEG C of water-baths and is incubated and stirs, then by intercalant solution
Being added drop-wise in round-bottomed flask, drip off in 35min, react 5h, cooling stands；Removal supernatant liquor obtains
To white precipitate, it is washed with deionized suction filtration for several times, until filtrate mass percent is 1%
AgNO3Solution detects without pale yellow precipitate；Gained white precipitate proceeds in beaker, under the conditions of 80 DEG C
It is dried 24h, obtains organic clay.
The present invention provides the preparation method of a kind of shock mount ekalead polymer composite, concrete work
Skill step is:
(1) sodium-based montmorillonite organises: 10.0g sodium-based montmorillonite is added to 400mL deionized water
In, magnetic agitation 1h, stand 24h to complete swelling；Additionally by 4.00g intercalator octadecyl three
Methyl bromide ammonium joins 100mL deionized water dissolving and obtains intercalant solution；Will be equipped with montmorillonite
The round-bottomed flask of the aqueous solution is put in 80 DEG C of water-baths and is incubated and stirs, then is added drop-wise to by intercalant solution
In round-bottomed flask, dripping off in 35min, react 5h, cooling stands；Remove supernatant liquor and obtain white
Precipitation, is washed with deionized suction filtration for several times, until filtrate mass percent is the AgNO of 1%3
Solution detects without pale yellow precipitate；Gained white precipitate proceeds in beaker, is dried 24 under the conditions of 80 DEG C
H, obtains organic clay.
(2) ekalead polymer composite preparation technology: chlorohydrin rubber is moulded in two-roll mill room temperature
Refining, be subsequently adding the organic clay that (1) obtains, be allowed to mixing uniformly；Use hot-rolling mill afterwards
Mixing, melting temperature is 95 ± 5 DEG C so that it is present obvious molten condition, melting heat at this temperature
Refining 10 ± 5min, rear slice to be mixed is cooled to room temperature；Carry out mixing the most on a mill until, depend on
Secondary addition activating agent, accelerator, age resistor, chopped fiber, be eventually adding carbon black and lead orthoplumbate,
Carbon black can also be added without, rear mixing slice；It is expelled in cylindrical mold cavities by extruder,
Injection temperature is 60 DEG C, pressure 15Mpa, pressurize 30min, cooling, die sinking, obtains preformation core
Material, finally carries out sulfuration at 160 DEG C and obtains ekalead polymer composite core.
(3) ekalead polymer composite core step (2) obtained assembles with bearing respectively,
Obtain ekalead polymer composite core shock mount.
Beneficial effects of the present invention
The present invention utilizes the method for fusion intercalation that organic clay joins chlorohydrin rubber to have prepared novel
Polymer composite, this polymer composite has the mechanical property close with lead metal, resistance
Damping properties.The addition of modified organic clay so that it is under small strain, stress significantly improves.It is made into core
Material replaces lead for retractable pencil, is effectively increased the damping capacity equivalent level rigidity of rubber support.Prepared shock insulation
The vertical rigidity of bearing, equivalent level rigidity and damping ratio meet the needs of actual bridge application, comprehensively
Damping effect is good.The shock isolating pedestal core prepared compared to lead metal, this ekalead macromolecule composite wood
Material core has the advantages such as high-performance, pollution-free and low cost.
Accompanying drawing explanation
Fig. 1 is the rubber support structural representation of band lead for retractable pencil and ekalead polymer composite.Number in figure
Sign notices that justice is:
The upper junction steel plate of 1-；2-upper sealing plate；3-connecting bolt；4-intermediate laminate rubber；5-steel plate；6-
Shear key；7-lead for retractable pencil；Shrouding under 8-；Junction steel plate under 9-.
Fig. 2 is in embodiment 3, and the hysteresis under 100% strain of ekalead macromolecule core rubber support is bent
Line.
Detailed description of the invention
The raw materials used source of the present invention is as follows
Chlorohydrin rubber, Wuhan Youji Industrial Co., Ltd.；Stearic acid, zinc oxide, accelerator, anti-old
The rubber chemicals such as agent, carbon black, Sheng Hua product of rubber and plastic Co., Ltd provides；Chopped fiber, model is
FN66-3, its bulk composition is nylon66 fiber, fibre length 3.0 ± 0.5mm, and space chopped fiber is expanded in Heilungkiang
New material limited company provides.Organic clay, laboratory is modified, uses octadecyl trimethyl bromine
Change ammonium, as intercalator, carries out organic-treating to sodium-based montmorillonite.Cetyltrimethylammonium bromide,
Nanjing chemical reagent limited company provides.Silver nitrate, Guangzhou Jia Le Chemical Co., Ltd. provides.
The formula prepared below according to ekalead polymer composite rubber core bearing of the present invention and technique, pass through
The present invention will be further described for embodiment, but the invention is not restricted to these embodiments.
Embodiment 1-3
Preparing ekalead polymer composite according to table 1, concrete preparation technology is as follows:
Table 1 chlorohydrin rubber formula
Sodium-based montmorillonite organises: be added in 400mL deionized water by 10.0g sodium-based montmorillonite, magnetic
Power stirring 1h, stands 24h to complete swelling；Additionally by 4.00g intercalator octadecyl trimethyl bromine
Change ammonium joins 100mL deionized water dissolving and obtains intercalant solution；Will be equipped with the montmorillonite aqueous solution
Round-bottomed flask put in 80 DEG C of water-baths and be incubated and stir, then intercalant solution be added drop-wise to round bottom burn
In Ping, dripping off in 35min, react 5h, cooling stands；Remove supernatant liquor and obtain white precipitate,
It is washed with deionized suction filtration for several times, until filtrate mass percent is the AgNO of 1%3Solution is examined
Survey without pale yellow precipitate；Gained white precipitate proceeds in beaker, is dried 24h under the conditions of 80 DEG C,
To organic clay.
Ekalead polymer composite preparation technology according to: chlorohydrin rubber/organic clay ratio be 100/60,
100/100, the ratio of 100/150, plasticates chlorohydrin rubber in two-roll mill room temperature, is subsequently adding
Organic clay, be allowed to mixing uniformly；Using hot-rolling mill mixing afterwards, melting temperature is 95 ± 5 DEG C,
Make it present obvious molten condition at this temperature, melted heat refining 10 ± 5min, to be mixed uniformly after
Slice is cooled to room temperature；Carry out mixing the most on a mill until, be sequentially added into activating agent, accelerator, prevent
Old agent, chopped fiber, be eventually adding carbon black and lead orthoplumbate, rear mixing slice；By extrusion
Machine is expelled in cylindrical mold cavities, and injection temperature is 60 DEG C, pressure 15Mpa, and pressurize 30min is cold
But, die sinking, obtain the preforming ekalead macromolecule core of different proportion, finally carry out at 160 DEG C
Sulfuration obtains ekalead polymer composite core chlorohydrin rubber/organic clay 100/60, chloropharin rubber
Glue/organic clay 100/100, chlorohydrin rubber/organic clay 100/150 (be designated as successively embodiment 1,
2、3)。
The ekalead polymer composite core obtained and sulfuration bearing are assembled, obtains ekalead macromolecule
Composite shock mount.
Weigh 7 grams of chlorohydrin rubber elastomeric compound samples on vulcameter, measure time of scorch T10 and optimum cure
Time T90.Lamination elastomeric compound is vulcanized by 160 DEG C × T90 on vulcanizing press, sulfuration pressure
Power is 15MPa, obtains the ekalead polymer composite of crosslinking.The composite of crosslinking is carried out power
Learning performance test, obtained ekalead polymer composite performance is shown in Table 2 and table 3.
Table 2
| Numbering | Shao's A hardness | 10% stretches/Mpa surely | 100% stretches/Mpa surely | Hot strength/MPa |
| Embodiment 1 | 60 | 7.5 | 8.2 | 11.4 |
| Embodiment 2 | 61 | 7.6 | 8.5 | 13.1 |
| Embodiment 3 | 63 | 7.8 | 8.7 | 13.3 |
Table 3
From table 2 it can be seen that this ekalead polymer composite hardness is higher, assemble them into rubber
Bearing, it will making rubber support have higher vertical rigidity, under small strain effect simultaneously, stress is notable
Improving, close to the stress at definite elongation of pure lead, equivalent level when can increase rubber support horizontal distortion is firm
Degree, makes rubber support have more excellent anti-pressure ability.Along with the increase of organic clay consumption, compound
In material, organic clay assembles the filler network that formation rigidity is the strongest, significantly improves the perpendicular of composite
To rigidity.
The vertical rigidity standard-required of Standard finished product bearing is 678 × (1 ± 30%) kN/mm, etc.
Effect horizontal rigidity standard-required is 1.4 × (1 ± 15%) kN/mm, equivalent damping ratio standard-required is 22.3 ×
(1 ± 15%) kN/mm.As shown in Table 3, assemble with this ekalead polymer composite for core
Shock mount properties, all within critical field, meets bridge pad performance requirement.
Embodiment 4-6
Preparing ekalead polymer composite according to table 4, concrete preparation technology is as follows:
Table 4 chlorohydrin rubber formula
| Formula | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Chlorohydrin rubber | 100 parts | 100 parts | 100 parts |
| Organic clay | 60 parts | 100 parts | 150 parts |
| Stearic acid | 1.5 part | 1.5 part | 1.5 part |
| Ethylene thiourea | 2.5 part | 2.5 part | 2.5 part |
| Antioxidant NBC | 1 part | 1 part | 2 parts |
| Antioxidant MB | 1 part | 2 parts | 2 parts |
| Chopped fiber | 15 parts | 15 parts | 15 parts |
| Carbon black | 0 part | 0 part | 0 part |
| Lead orthoplumbate | 2 parts | 3 parts | 4 parts |
Sodium-based montmorillonite organises: be added in 400mL deionized water by 10.0g sodium-based montmorillonite, magnetic
Power stirring 1h, stands 24h to complete swelling；Additionally by 4.00g intercalator octadecyl trimethyl bromine
Change ammonium joins 100mL deionized water dissolving and obtains intercalant solution；Will be equipped with the montmorillonite aqueous solution
Round-bottomed flask put in 80 DEG C of water-baths and be incubated and stir, then intercalant solution be added drop-wise to round bottom burn
In Ping, dripping off in 35min, react 5h, cooling stands；Remove supernatant liquor and obtain white precipitate,
It is washed with deionized suction filtration for several times, until filtrate mass percent is the AgNO of 1%3Solution is examined
Survey without pale yellow precipitate；Gained white precipitate proceeds in beaker, is dried 24h under the conditions of 80 DEG C,
To organic clay.
Ekalead polymer composite preparation technology according to: chlorohydrin rubber/organic clay ratio be 100/60,
100/100, the ratio of 100/150, plasticates chlorohydrin rubber in two-roll mill room temperature, is subsequently adding
Organic clay, be allowed to mixing uniformly；Using hot-rolling mill mixing afterwards, melting temperature is 95 ± 5 DEG C,
Make it present obvious molten condition at this temperature, melted heat refining 10 ± 5min, to be mixed uniformly after
Slice is cooled to room temperature；Carry out mixing the most on a mill until, be sequentially added into activating agent, accelerator, prevent
Old agent, chopped fiber, be eventually adding lead orthoplumbate, rear mixing slice；Injected by extruder
In cylindrical mold cavities, injection temperature is 60 DEG C, pressure 15Mpa, and pressurize 30min cools down, opens
Mould, obtains the preforming ekalead macromolecule core of different proportion, finally carries out vulcanizing at 160 DEG C
To ekalead polymer composite core chlorohydrin rubber/organic clay 100/60, chlorohydrin rubber/
Organic clay 100/100, chlorohydrin rubber/organic clay 100/150 (being designated as embodiment 4,5,6 successively).
The ekalead polymer composite core obtained and sulfuration bearing are assembled, obtains ekalead macromolecule
Composite shock mount.
Weigh 7 grams of chlorohydrin rubber elastomeric compound samples on vulcameter, measure time of scorch T10 and optimum cure
Time T90.Lamination elastomeric compound is vulcanized by 160 DEG C × T90 on vulcanizing press, sulfuration pressure
Power is 15MPa, obtains the ekalead polymer composite of crosslinking.The composite of crosslinking is carried out power
Learning performance test, obtained ekalead polymer composite performance is shown in Table 5 and table 6.
Table 5
| Numbering | Shao's A hardness | 10% stretches/Mpa surely | 100% stretches/Mpa surely | Hot strength/MPa |
| Embodiment 1 | 58 | 7.7 | 8.3 | 11.6 |
| Embodiment 2 | 61 | 7.8 | 8.7 | 12.8 |
| Embodiment 3 | 63 | 8.0 | 8.9 | 13.5 |
Table 6
As can be seen from Table 5, this ekalead polymer composite hardness is higher, assembles them into rubber
Bearing, it will making rubber support have higher vertical rigidity, under small strain effect simultaneously, stress is notable
Improving, close to the stress at definite elongation of pure lead, equivalent level when can increase rubber support horizontal distortion is firm
Degree, makes rubber support have more excellent anti-pressure ability.Along with the increase of organic clay consumption, compound
In material, organic clay assembles the filler network that formation rigidity is the strongest, and the chopped fiber being simultaneously introduced is with organic
Clay serves synergy, significantly improves the vertical rigidity of composite.
The vertical rigidity standard-required of Standard finished product bearing is 678 × (1 ± 30%) kN/mm, etc.
Effect horizontal rigidity standard-required is 1.4 × (1 ± 15%) kN/mm, equivalent damping ratio standard-required is 22.3 ×
(1 ± 15%) kN/mm.As shown in Table 6, assemble with this ekalead polymer composite for core
Shock mount properties, all within critical field, meets bridge pad performance requirement.
Embodiment 7-9
Preparing ekalead polymer composite according to table 7, concrete preparation technology is as follows:
Table 7 chlorohydrin rubber formula
| Formula | Embodiment 7 | Embodiment 8 | Embodiment 9 |
| Chlorohydrin rubber | 100 parts | 100 parts | 100 parts |
| Organic clay | 60 parts | 100 parts | 150 parts |
| Stearic acid | 2 parts | 2 parts | 2 parts |
| Ethylene thiourea | 2 parts | 2 parts | 2 parts |
| Antioxidant NBC | 1 part | 1 part | 2 parts |
| Antioxidant MB | 1 part | 2 parts | 2 parts |
| Chopped fiber | 10 parts | 10 parts | 10 parts |
| Carbon black | 10 parts | 10 parts | 10 parts |
| Lead orthoplumbate | 2 parts | 3 parts | 4 parts |
Sodium-based montmorillonite organises: be added in 400mL deionized water by 10.0g sodium-based montmorillonite, magnetic
Power stirring 1h, stands 24h to complete swelling.Additionally by 4.00g intercalator octadecyl trimethyl bromine
Change ammonium joins 100mL deionized water dissolving and obtains intercalant solution；Will be equipped with the montmorillonite aqueous solution
Round-bottomed flask put in 80 DEG C of water-baths and be incubated and stir, then intercalant solution be added drop-wise to round bottom burn
In Ping, dripping off in 35min, react 5h, cooling stands；Remove supernatant liquor and obtain white precipitate,
It is washed with deionized suction filtration for several times, until filtrate mass percent is the AgNO of 1%3Solution is examined
Survey without pale yellow precipitate；Gained white precipitate proceeds in beaker, is dried 24h under the conditions of 80 DEG C,
To organic clay.
Ekalead polymer composite preparation technology according to: chlorohydrin rubber/organic clay ratio be 100/60,
100/100, the ratio of 100/150, plasticates chlorohydrin rubber in two-roll mill room temperature, is subsequently adding
Organic clay, be allowed to mixing uniformly；Using hot-rolling mill mixing afterwards, melting temperature is 95 ± 5 DEG C,
Make it present obvious molten condition at this temperature, melted heat refining 10 ± 5min, to be mixed uniformly after
Slice is cooled to room temperature；Carry out mixing the most on a mill until, be sequentially added into activating agent, accelerator, prevent
Old agent, chopped fiber, be eventually adding carbon black and lead orthoplumbate, rear mixing slice；By extrusion
Machine is expelled in cylindrical mold cavities, and injection temperature is 60 DEG C, pressure 15Mpa, and pressurize 30min is cold
But, die sinking, obtain the preforming ekalead macromolecule core of different proportion, finally carry out at 160 DEG C
Sulfuration obtains ekalead polymer composite core chlorohydrin rubber/organic clay 100/60, chloropharin rubber
Glue/organic clay 100/100, chlorohydrin rubber/organic clay 100/150 (be designated as successively embodiment 7,
8、9)。
The ekalead polymer composite core obtained and sulfuration bearing are assembled, obtains ekalead macromolecule
Composite shock mount.
Weigh 7 grams of chlorohydrin rubber elastomeric compound samples on vulcameter, measure time of scorch T10 and optimum cure
Time T90.Lamination elastomeric compound is vulcanized by 160 DEG C × T90 on vulcanizing press, sulfuration pressure
Power is 15MPa, obtains the ekalead polymer composite of crosslinking.The composite of crosslinking is carried out power
Learning performance test, obtained ekalead polymer composite performance is shown in Table 8 and table 9.
Table 8
| Numbering | Shao's A hardness | 10% stretches/Mpa surely | 100% stretches/Mpa surely | Hot strength/MPa |
| Embodiment 1 | 61 | 7.6 | 8.1 | 12.5 |
| Embodiment 2 | 63 | 7.7 | 8.4 | 13.2 |
| Embodiment 3 | 64 | 7.9 | 8.8 | 13.8 |
Table 9
As can be seen from Table 8, this ekalead polymer composite hardness is higher, assembles them into rubber
Bearing, it will making rubber support have higher vertical rigidity, under small strain effect simultaneously, stress is notable
Improving, close to the stress at definite elongation of pure lead, equivalent level when can increase rubber support horizontal distortion is firm
Degree, makes rubber support have more excellent anti-pressure ability.Along with the increase of organic clay consumption, compound
In material, organic clay assembles the filler network that formation rigidity is the strongest, and the chopped fiber being simultaneously introduced is with organic
Clay serves synergy, significantly improves the vertical rigidity of composite.
The vertical rigidity standard-required of Standard finished product bearing is 678 × (1 ± 30%) kN/mm, etc.
Effect horizontal rigidity standard-required is 1.4 × (1 ± 15%) kN/mm, equivalent damping ratio standard-required is 22.3 ×
(1 ± 15%) kN/mm.As shown in Table 9, assemble with this ekalead polymer composite for core
Shock mount properties, all within critical field, meets bridge pad performance requirement.
Note: this experiment rubber support finished product model used is J4Q 300 × 420 × 137 G0.8, inside it
Structure is: steel plate thickness 4mm × 9 layer, laminated rubber thickness 6mm × 10 layer, but the present invention is not
It is only limited to the rubber support of this kind of structure.
Claims (4)
1. ekalead polymer composite core, it is characterised in that in terms of mass parts, fills a prescription as follows:
Wherein staple length is 3.0 ± 0.5mm.
Core the most according to claim 1, it is characterised in that: chopped fiber is nylon 66 fiber,
A length of 3.0 ± 0.5mm.
A kind of shock isolating pedestal ekalead polymer composite the most according to claim 1, it is special
Levy and be: organic clay synthesis step is as follows: 10.0g sodium-based montmorillonite is added to 400mL deionization
In water, magnetic agitation 1h, stand 24h to complete swelling；Additionally by 4.00g intercalator octadecyl
Trimethylammonium bromide joins 100mL deionized water dissolving and obtains intercalant solution；Will be equipped with montmorillonite
The round-bottomed flask of the aqueous solution is put in 80 DEG C of water-baths and is incubated and stirs, then is added drop-wise to by intercalant solution
In round-bottomed flask, dripping off in 35min, react 5h, cooling stands；Remove supernatant liquor and obtain white
Precipitation, is washed with deionized suction filtration for several times, until filtrate mass percent is the AgNO of 1%3
Solution detects without pale yellow precipitate；Gained white precipitate proceeds in beaker, is dried 24 under the conditions of 80 DEG C
H, obtains organic clay.
4. the method for preparation core as described in claim 1-3 any one, it is characterised in that: will
Chlorohydrin rubber is plasticated in two-roll mill room temperature, is subsequently adding organic clay, be allowed to mixing uniformly；It
Rear employing hot-rolling mill mixing, melting temperature is 95 ± 5 DEG C so that it is present at this temperature significantly
Molten condition, melted heat refining 10 ± 5min, rear slice to be mixed is cooled to room temperature；Again in mill
Carry out mixing on machine, be sequentially added into activating agent, accelerator, age resistor, chopped fiber, be eventually adding charcoal
Black and lead orthoplumbate, carbon black also can be added without, mixing uniformly after slice；It is expelled to by extruder
In cylindrical mold cavities, injection temperature is 60 DEG C, pressure 15Mpa, pressurize 30min, cooling, die sinking,
Obtain preforming core, finally carry out sulfuration at 160 DEG C and obtain ekalead polymer composite core.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109233015A (en) * | 2017-07-10 | 2019-01-18 | 北京化工大学 | A kind of support high-performance damping material, preparation method and its rubber shock absorption support |
| CN113550762A (en) * | 2021-08-06 | 2021-10-26 | 东南大学 | Vibration reduction type shield segment joint structure and shield segment vibration reduction method |
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| CN105860493B (en) | 2018-03-30 |
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