CN106832588A - Ultralight buoyant material and its supercritical CO can be processed2Fretting map preparation method - Google Patents
Ultralight buoyant material and its supercritical CO can be processed2Fretting map preparation method Download PDFInfo
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- CN106832588A CN106832588A CN201710085859.0A CN201710085859A CN106832588A CN 106832588 A CN106832588 A CN 106832588A CN 201710085859 A CN201710085859 A CN 201710085859A CN 106832588 A CN106832588 A CN 106832588A
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- ultralight
- talcum powder
- buoyant material
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- supercritical
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/06—CO2, N2 or noble gases
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/08—Supercritical fluid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
Abstract
Ultralight buoyant material and its supercritical CO can be processed the present invention is to provide one kind2Fretting map preparation method.(1) in terms of mass fraction, 100 parts of acrylic resins, 2~4 parts of talcum powder are taken, it is well mixed using twin-screw blender, and extruding pelletization, obtain talcum powder and PP composite material particle；(2) it is put into hot pressing die, is hot pressed into sheet material；(3) it is put into the foaming cabin of overcritical microporous foam system, is 160~165 DEG C in temperature, is filled with CO2Gas, 1980~2000psi of pressure；(4) after keeping pressure and temperature 6h, CO is closed2Foaming cabin is simultaneously put into cooling, the buoyant material after the foaming for obtaining in cold water by intake valve, rapid opening air outlet valve.Density of material is in 0.15 to 0.25g/cm3Between, compressive resistance meets the requirement of the universal material of marine settings, good quality in 6 to 10MPa；Process is simple, environmentally safe, low cost.
Description
Technical field
The present invention relates to a kind of ultralight buoyant material.The present invention also relates to be a kind of preparation of ultralight buoyant material
Method
Background technology
As people deepen continuously to ocean development, the marine settings needed for ocean development are proposed with higher wanting
Ask.Buoyant material autologous density is low, buoyant weight is than greatly, buoyant material is the basic material in ocean development, can be filled for deep-sea engineering
Standby to provide enough quiet buoyancy, the performance for how improving buoyant material has been the key technology of marine engineering equipment.Buoyancy material
Material is to restrict the key material that the ocean engineerings such as deepwater exploration, exploitation, oil recovery, oil transportation develop links.
The buoyant material prepared using foaming domestic at present is most of using chemical foam blowing agent shaping, density compared with
Height, percent opening is high, and compressive resistance is low, and water absorption rate is high, and service life is short, while using can be polluted in CBA preparation process
Environment.In the patent document of Application No. CN200910230160.4, solid buoyancy prepared by a kind of chemical blowing process is described
Material, density of material is 0.12g/cm3, it is 2MPa that compression strength is less than, and has the disadvantage easily to pollute environment using CBA,
Need to be surface-treated the material for preparing simultaneously.It is matrix that another high intensity buoyant material uses resin, fills nothing
Machine tiny balloon reduces density, but inorganic hollow microspheres limitation filled with maximum packing ratio row, more than maximum packing ratio
Afterwards, although density can continue reduce, but resin can not fully wrapped around inorganic hollow microspheres, while the same inorganic hollow of resin
The interfacial combined function of microballoon is poor, and the final buoyant material compressive resistance for preparing is very low, and has water absorption rate higher.Application number
In for the patent document of CN201010552911.7 and CN201310065622.8, unsaturated-resin is filled using glass microballoon normal
Temperature prepares buoyant material, and its buoyant material density for preparing is all higher than 0.45g/cm3, density is larger, is not suitable for shallower in the depth of water
Using.
The content of the invention
It is an object of the invention to provide a kind of density is low, intensity is high processes ultralight buoyant material.Mesh of the invention
A kind of process is simple of offer, environmentally safe, the supercritical CO for processing ultralight buoyant material of low cost are be provided2It is micro-
Foaming preparation method.
It is of the invention to process ultralight buoyant material and be by quality parts ratio：100 parts of acrylic resin；Talcum powder 2~4
Part, through supercritical CO2Fretting map method is prepared from.
The particle diameter of the talcum powder is 800 mesh.
The supercritical CO for processing ultralight buoyant material of the invention2Fretting map preparation method is：
(1) in terms of mass fraction, 100 parts of acrylic resins, 2~4 parts of talcum powder are taken, mixes equal using twin-screw blender
It is even, and extruding pelletization, obtain talcum powder and PP composite material particle；
(2) talcum powder for obtaining step (1) is put into hot pressing die with PP composite material material granule, is hot pressed into
Sheet material；
(3) sheet material that step (2) is obtained is put into the foaming cabin of overcritical microporous foam system, is 160 in temperature
~165 DEG C, it is filled with CO2Gas, pressure 1980-~2000psi；
(4) after keeping pressure and temperature 6h, CO is closed2Intake valve is rapid to open air outlet valve and be put into foaming cabin cold
Cooled down in water, the buoyant material after the foaming for obtaining.
The invention provides the ultralight buoyancy material that a kind of underwater installation needed for ocean engineering, device provide buoyancy
Material, uses supercritical gas foaming technique, it is proposed that a kind of buoyant material preparation method.Its material prescription includes polypropylene and cunning
Stone flour, its preparation method is to use supercritical CO2Used as physical blowing agent, talcum powder makes material close to gas as reinforcer
Degree is in 0.15 to 0.25g/cm3Between, compressive resistance meets the requirement of the universal material of marine settings, quality in 6 to 10MPa
It is excellent；The forming method is relatively low to equipment requirement, and moulding process is simple, environmentally safe, low cost.
Brief description of the drawings
Fig. 1 is the supercritical CO that can process ultralight buoyant material2The flow chart of fretting map preparation method.
Specific embodiment
With reference to Fig. 1, the supercritical CO for processing ultralight buoyant material of the invention2Fretting map preparation method mainly includes poly-
The Blending Processes of compound (acrylic resin) and talcum powder；Prepare composite material granular process；It is hot pressed into template materials process；It is super
Critical microporous foam process and release gas obtain the process of buoyant material product.Template materials process is hot pressed into by overcritical
Microporous foam system realizes that overcritical microporous foam system includes gas cylinder, two pressure gauges, intake valve 1, high-pressure pump and its hairs 2
Constituted with autoclave.
Citing below further illustrates the present invention.
Embodiment 1：
Prepare supercritical CO2Fretting map is prepared and can process ultralight buoyant material, and specific preparation method is：
(1) in terms of mass fraction, 100 parts of acrylic resins, 2 parts of talcum powder are taken, are well mixed using twin-screw blender,
And extruding pelletization, obtain talcum powder/PP composite material；
(2) composite material granular obtained in above-mentioned steps 1 is put into hot pressing die, is hot pressed into sheet material；
(3) sheet material that above-mentioned steps 2 are obtained is put into the foaming cabin of the overcritical microporous foam systems of Fig. 1, temperature is set
It is 160 DEG C to spend, and is filled with CO2Gas, pressure 2000psi；
(4) pressure and temperature 6h will be kept in above-mentioned steps 3, intake valve and temperature will be closed, rapid opening air outlet valve simultaneously will
Cabin cools down in being put into cold water；
(5) buoyant material after the foaming for obtaining above-mentioned steps 4 takes out.
Supercritical CO of the present invention2Fretting map is prepared and can process ultralight buoyant material, the deep water buoyant material density of preparation compared with
It is low, it is 0.28g/cm3, compressive resistance 9MPa meets the universal material requirements in shallow sea；The forming method is relatively low to equipment requirement,
Moulding process is simple, low cost, non-environmental-pollution
Material to the shaping of embodiment 1 carries out performance detection, and compression strength test size is 30 × 30 × 20mm, water absorption rate
Sample dimensions are 50 × 50 × 20mm, and experimental condition is hydrostatic pressing 5MPa, pressurize 24h.
The correlated performance of the embodiment 1 of table 1
As can be seen from Table 1, supercritical CO of the present invention2Fretting map is prepared and can process ultralight buoyant material density
Relatively low, density is 0.28g/cm3, compressive resistance is 9MPa, can be applied to 500m with the marine environment of headwater depth, is particularly existed
Etc. under hydrostatic pressing 5MPa, pressurize 24h water absorption rates are less than 3%.The supercritical gas fretting map is prepared and can process ultralight buoyant material
Machining and the relevant subsequent working process such as can be sawed, be dug, being ground, being inlayed.And optional various flexible waterproof coatings are carried out
Surface coats, and its base material is tight with finish paint bonding.
Embodiment 2：
Prepare supercritical CO2Fretting map is prepared and can process ultralight buoyant material, and specific preparation method is：
(1) in terms of mass fraction, 100 parts of acrylic resins, 2 parts of talcum powder are taken, are well mixed using twin-screw blender,
And extruding pelletization, obtain talcum powder/PP composite material；
(2) composite material granular obtained in above-mentioned steps 1 is put into hot pressing die, is hot pressed into sheet material；
(3) sheet material that above-mentioned steps 2 are obtained is put into the foaming cabin of the overcritical microporous foam systems of Fig. 1, temperature is set
It is 163 DEG C to spend, and is filled with CO2Gas, pressure 1990psi；
(4) pressure and temperature 6h will be kept in above-mentioned steps 3, intake valve and temperature will be closed, rapid opening air outlet valve simultaneously will
Cabin cools down in being put into cold water；
(5) buoyant material after the foaming for obtaining above-mentioned steps 4 takes out.
Supercritical CO of the present invention2Fretting map is prepared and can process ultralight buoyant material, the deep water buoyant material density of preparation compared with
It is low, it is 0.20g/cm3, compressive resistance 7MPa meets the universal material requirements in shallow sea；The forming method is relatively low to equipment requirement,
Moulding process is simple, low cost, non-environmental-pollution
Material to the shaping of embodiment 2 carries out performance detection, and compression strength test size is 30 × 30 × 20mm, water absorption rate
Sample dimensions are 50 × 50 × 20mm, and experimental condition is hydrostatic pressing 5MPa, pressurize 24h.
The correlated performance of the embodiment 3 of table 2
As can be seen from Table 2, supercritical CO of the present invention2Fretting map is prepared and can process ultralight buoyant material density
Relatively low, density is 0.20g/cm3, compressive resistance is 7MPa, can be applied to 500m with the marine environment of headwater depth, is particularly existed
Etc. under hydrostatic pressing 5MPa, pressurize 24h water absorption rates are less than 3%.The supercritical gas fretting map is prepared and can process ultralight buoyant material
Machining and the relevant subsequent working process such as can be sawed, be dug, being ground, being inlayed.And optional various flexible waterproof coatings are carried out
Surface coats, and its base material is tight with finish paint bonding.
Embodiment 3：
Prepare supercritical CO2Fretting map is prepared and can process ultralight buoyant material, and specific preparation method is：
(1) in terms of mass fraction, 100 parts of acrylic resins, 2 parts of talcum powder are taken, are well mixed using twin-screw blender,
And extruding pelletization, obtain talcum powder/PP composite material；
(2) composite material granular obtained in above-mentioned steps 1 is put into hot pressing die, is hot pressed into sheet material；
(3) sheet material that above-mentioned steps 2 are obtained is put into the foaming cabin of the overcritical microporous foam systems of Fig. 1, temperature is set
It is 165 DEG C to spend, and is filled with CO2Gas, pressure 1980psi；
(4) pressure and temperature 6h will be kept in above-mentioned steps 3, intake valve and temperature will be closed, rapid opening air outlet valve simultaneously will
Cabin cools down in being put into cold water；
(5) buoyant material after the foaming for obtaining above-mentioned steps 4 takes out.
Supercritical CO of the present invention2Fretting map is prepared and can process ultralight buoyant material, the deep water buoyant material density of preparation compared with
It is low, it is 0.16g/cm3, compressive resistance 6MPa meets the universal material requirements in shallow sea；The forming method is relatively low to equipment requirement,
Moulding process is simple, low cost, non-environmental-pollution
Material to the shaping of embodiment 3 carries out performance detection, and compression strength test size is 30 × 30 × 20mm, water absorption rate
Sample dimensions are 50 × 50 × 20mm, and experimental condition is hydrostatic pressing 5MPa, pressurize 24h.
The correlated performance of the embodiment 3 of table 3
As can be seen from Table 3, supercritical CO of the present invention2Fretting map is prepared and can process ultralight buoyant material density
Relatively low, density is 0.16g/cm3, compressive resistance is 6MPa, can be applied to 500m with the marine environment of headwater depth, is particularly existed
Etc. under hydrostatic pressing 5MPa, pressurize 24h water absorption rates are less than 3%.The supercritical gas fretting map is prepared and can process ultralight buoyant material
Machining and the relevant subsequent working process such as can be sawed, be dug, being ground, being inlayed.And optional various flexible waterproof coatings are carried out
Surface coats, and its base material is tight with finish paint bonding.
Supercritical CO of the present invention2Fretting map is prepared and can process ultralight buoyant material, wherein being filled with CO2Pressure and temperature control
System, makes CO2It is key problem in technology to reach above-critical state.
The content not illustrated in the present embodiment is prior art, therefore is no longer described in detail.
The present invention prepares the advantage that can process ultralight buoyant material：Material prescription flexibly, can use the depth of water according to product
In adjustment CO2Gas temperature and pressure are regulated and controled, and reach the light material matched with using depth；By using overcritical gas
Body, significantly reduces the density of buoyant material, while having higher-strength；Density is 0.15 to 0.25g/cm3, compressive resistance
6 to 10MPa, meets the universal material requirements in deep-sea, good quality, and the forming method is relatively low to equipment requirement, moulding process
Simply, low cost.
Matrix resin of the present invention is acrylic resin, with low cost, intensity characteristic high.
The inorganic filler that the present invention is used is talcum powder, and the particle diameter of selection is 800 mesh.
The present invention is by CO2Gas is issued to above-critical state in uniform temperature and pressure, the gas of polymer is absorbed saturation
Degree is improved, and obtains the intact complete hole light composite material of foam structure, it is ensured that buoyant material quality.
The buoyant material that the present invention is prepared has the good performance characteristics of lightweight, high-strength and compactness, and preparation method letter
It is single to be efficiently easy to operation, while being produced without any pollution.
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention, all
It is any simple modification, equivalent variations and the modification made to above example according to technical spirit of the invention, still falls within
In the range of technical solution of the present invention.
Claims (3)
1. one kind can process ultralight buoyant material, it is characterized in that being by quality parts ratio：100 parts of acrylic resin；Talcum powder 2~
4 parts, through supercritical CO2Fretting map method is prepared from.
2. it is according to claim 1 to process ultralight buoyant material, it is characterized in that：The particle diameter of the talcum powder is 800 mesh.
3. a kind of supercritical CO for processing ultralight buoyant material2Fretting map preparation method, it is characterized in that：
(1) in terms of mass fraction, 100 parts of acrylic resins, 2~4 parts of talcum powder are taken, it is well mixed using twin-screw blender,
And extruding pelletization, obtain talcum powder and PP composite material particle；
(2) talcum powder for obtaining step (1) is put into hot pressing die with PP composite material material granule, is hot pressed into plate
Material；
(3) sheet material that step (2) is obtained is put into the foaming cabin of overcritical microporous foam system, is 160~165 in temperature
DEG C, it is filled with CO2Gas, pressure 1980-~2000psi；
(4) after keeping pressure and temperature 6h, CO is closed2Intake valve, it is rapid open air outlet valve and will foaming cabin be put into it is cold in cold water
But, the buoyant material after the foaming for obtaining.
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| CN201710085859.0A CN106832588A (en) | 2017-02-17 | 2017-02-17 | Ultralight buoyant material and its supercritical CO can be processed2Fretting map preparation method |
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Cited By (3)
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| CN107522942A (en) * | 2017-08-04 | 2017-12-29 | 浙江新恒泰新材料有限公司 | A kind of conducting polypropylene microcellular foam material and its production method |
| CN110480913A (en) * | 2019-09-24 | 2019-11-22 | 四川大学 | Multicomponent multi-phase complex system self-balancing supercritical foaming method and device |
| CN114988912A (en) * | 2022-07-13 | 2022-09-02 | 华北水利水电大学 | Preparation method of polymer foam concrete for filling cold-formed thin-wall steel |
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Application publication date: 20170613 |