CN107216617A - A kind of preparation method of neo-epoxy resin base high-strength light solid buoyancy material - Google Patents
A kind of preparation method of neo-epoxy resin base high-strength light solid buoyancy material Download PDFInfo
- Publication number
- CN107216617A CN107216617A CN201710647356.8A CN201710647356A CN107216617A CN 107216617 A CN107216617 A CN 107216617A CN 201710647356 A CN201710647356 A CN 201710647356A CN 107216617 A CN107216617 A CN 107216617A
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- CN
- China
- Prior art keywords
- epoxy resin
- hollow microspheres
- neo
- strength light
- solid buoyancy
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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
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08L61/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
Abstract
The present invention relates to a kind of preparation method of neo-epoxy resin base high-strength light solid buoyancy material, it includes the solidification three parts of the pretreatment, the filling of epoxy resin, epoxy resin of melamine resin hollow microsphere (MF hollow microspheres).It is mainly characterized by replacing traditional hollow glass micropearl with MF hollow microspheres, have case hardness high based on MF hollow microspheres, destruction of the compound system in pressurized process can be avoided, simultaneously, MF hollow microspheres and epoxy resin pass through the characteristic such as chemical bonds, adhesion be big, avoid glass microballoon and caused defect is combined with the out-phase of epoxy resin, to reach the purpose for improving its performance.
Description
Technical field
The present invention relates to a kind of preparation method of epoxy resin-matrix foamed composite, obtained solid buoyancy material can
With applied to oceanographic equipments such as submarine optical fiber cable, underwater robot, submarines.
Background technology
Deep-sea solid buoyancy material has won the favor of user with its intensity height, the low advantage of density in recent years.With solid
The market scale of body buoyant material expands rapidly, and countries in the world constantly increase to the demand of buoyant material.At present, China grinds
The solid buoyancy material of high-strength light processed breaks the situation that a small number of offshore companies corner the market, and this material can not only apply
In the defence engineering of China, and a large amount of foreign exchanges can be saved for country, improve the integration capability of exploitation ocean.Although China
Carried out correlative study for many years in the field, but buoyant material core material (high-quality hollow glass micropearl) investigative technique according to
It is old to make slow progress.With the development of current China's marine engineering equipment, the demand of deep-sea solid buoyancy material will be further quick-fried
Hair.
The solid buoyancy material of domestic production is generally shallow sea solid buoyancy material, and cork is used this kind of material more, gold
Belong to floating drum and synthetic rubber articles etc., its shape fixes, the net buoyancy that provides is small, density is larger.High-strength solid buoyancy material
It is the important component of the modern deep submergence technology of development, buoyancy necessary to ensureing latent device improves the payload of submersible,
Its appearance and size is reduced, especially in the submersible for building big depth, is played the role of important.
The content of the invention
The purpose of the present invention is to solve the above problems, providing a kind of neo-epoxy resin base high-strength light solid buoyancy material
The preparation method of material.
For achieving the above object, the technical scheme that provides of the present invention is:
A kind of neo-epoxy resin base high-strength light solid buoyancy material, its preparation method comprises the following steps:
1) melamine resin hollow microsphere (MF hollow microspheres) is placed on to toast at 30 DEG C and dries 4h, obtain anhydrous
The MF hollow microspheres divided;It is screened with 200 molybdenum sieves, stored for future use after screening;
2) epoxy resin and curing agent are respectively placed in froth breaking bucket froth breaking 4h, are then heated to 90 DEG C, curing agent is poured into
Reduce the entrance of air in epoxy resin and in 70 DEG C of water-baths in fully middle stirring at low speed, mixed process as far as possible;
3) the MF hollow microspheres screened are preheated to 70 DEG C, then itself and pre- hot resin are put into mixer fully mixed
Close;
4) mold bottom layer overlay water conservancy diversion screen cloth will be vacuumized, and releasing agent is coated in the face of mould six, 70 DEG C are preheated to,
Mixed epoxy resin solution is added in preheated mold, using powerful vacuum pump to its deaeration 10 minutes, then 70
DEG C, solidify 4h compression moldings under normal pressure, solidification is naturally cooled to after terminating and obtained after room temperature, the demoulding with MF hollow microsphere ring type fillings
Epoxy resin-based high-strength light solid buoyancy material.
Step 1) in, MF hollow microspheres are washed before drying using deionized water to it, it is ensured that MF hollow microspheres surface
Totally, the interface cohesion of MF hollow microspheres and epoxy resin is improved.
Step 2) in, epoxy resin adds diluent, defoamer with curing agent and stirred before combination, the epoxy
Resin:Curing agent:Diluent:Defoamer=100:80:10:5 (mass ratioes).
Step 4) in, the solidification process whole process of buoyant material is carried out in mould is vacuumized, it is to avoid heat expansion causes volume swollen
It is swollen.
Step 4) in, buoyant material solidification completion is cooled to after room temperature, needs further to carry out secondary solidification at 50 DEG C, with this
Improve the performance of buoyant material.
Beneficial effect:
The present invention replaces traditional hollow glass micropearl with MF hollow microspheres, has case hardness based on MF hollow microspheres
Height, can avoid destruction of the compound system in pressurized process, meanwhile, MF hollow microspheres pass through chemical bonded refractory with epoxy resin
Close, the characteristic such as adhesion is big, it is to avoid glass microballoon is combined with the out-phase of epoxy resin caused by defect, to reach its property of improvement
The purpose of energy.
The present invention is compounded with MF tiny balloon, compared to traditional glass microballoon, and its energy-absorbing heat-proof quality is greatly improved,
Intensity ensures to be 2-20MPa, can further meet requirement of the oceanographic equipment for intensity.In addition, it is combined MF hollow micro-
After glass microballoon of the ball to replace conventional composite, on the basis of intensity is greatly reinforced, density can drop to 0.4gcm3,
Its quality is greatly reduced, and more meets lightweight requirements.
Brief description of the drawings
Fig. 1 is the technology path of buoyant material preparation in embodiment.
Fig. 2 is the performance test flow of buoyant material in embodiment.
Fig. 3 is the structural representation of buoyant material in embodiment.
In figure:1-MF hollow microspheres, 2- epoxy resin-bases.
Embodiment
With reference to specific embodiment, the invention will be further described.
The present invention provides a kind of preparation method of neo-epoxy resin base high-strength light solid buoyancy material.Concrete operations are walked
It is rapid as follows:
(1) it is washed using deionized water before MF hollow microspheres are dried, MF hollow microspheres are placed at 30 DEG C and dried
Roasting 4h, obtains the MF hollow microspheres of no moisture.It is screened with 200 molybdenum sieves, stored for future use after screening.
(2) epoxy resin and curing agent are respectively placed in froth breaking bucket froth breaking 4h, are then heated to 90 DEG C, curing agent is poured into
In epoxy resin in 70 DEG C of water-baths fully in stirring at low speed, epoxy resin and curing agent add diluent, froth breaking before combination
Agent simultaneously stirs, and its epoxy resin:Curing agent:Diluent:Defoamer=100:80:10:5.Subtract as far as possible in mixed process
The entrance of few air.
(3) the MF hollow microspheres screened are preheated to 70 DEG C, then it and pre- hot resin is put into mixer and fully mixed
Close.
(4) mold bottom layer overlay water conservancy diversion screen cloth will be vacuumized, and releasing agent is coated in the face of mould six, 70 are preheated to
DEG C, mixed epoxy resin composition is added in preheated mold, using powerful vacuum pump to its deaeration 10 minutes, then
Solidify 4h compression moldings under 70 DEG C, normal pressure, solidification end naturally cools to room temperature, and solidification process whole process is in mould is vacuumized
Carry out, it is to avoid heat expansion causes volumetric expansion, and buoyant material solidification completion is cooled to after room temperature, it is further secondary in 50 DEG C of progress
Solidification, obtains filling epoxy resin-matrix high-strength light solid buoyancy material with MF hollow microspheres after the demoulding.
The corrosion-resistant experiment of the simulation accelerated seawater of buoyant material to the present invention:By 25mm × 25mm × 25mm buoyant material blocks
Shape sample is put into prepared artificial seawater, is set and is accelerated the corrosion-resistant experiment condition of seawater to be condensing reflux heating leaching at 90 DEG C
Bubble 5 hours.Same batch the sample (sample 1) of corrosion-resistant experiment is not then made into and after the corrosion-resistant experiment process of simulated seawater
Sample (sample 2) be compressed contrast experiment, the compressive strength change of product after analysis corrosion-resistance treatment.According to omnipotent examination
Machine export data are tested, the compressive resistance of sample 1 is 32.83MPa, and the compressive resistance of sample 2 is 32.81MPa.Experiment finds to pass through
Sample after the corrosion-resistant experiment process of speeding-up simulation seawater is compared to before untreated, and product appearance does not have substantially with compressive resistance
Change.It the experiment proved that product excellent anti-corrosion performance prepared by the present invention can meet sea water immersion corrosion resistant in practical application
Erosion is required.
It is described above, only it is presently preferred embodiments of the present invention, any formal limitation not is made to the present invention, it is any ripe
Professional and technical personnel is known, it is without departing from the scope of the present invention, real to more than according to the technical spirit of the present invention
Apply any simple modification, equivalent substitution that example made and improve etc., still fall within technical solution of the present invention protection domain it
It is interior.
Claims (5)
1. a kind of neo-epoxy resin base high-strength light solid buoyancy material, it is characterised in that:Preparation method comprises the following steps:
1) MF hollow microspheres are placed on to toast at 30 DEG C and dry 4h, obtain the MF hollow microspheres of no moisture;With 200 molybdenum sieves to it
Screened, stored for future use after screening;
2) epoxy resin and curing agent are respectively placed in froth breaking bucket froth breaking 4h, are then heated to 90 DEG C, curing agent is poured into epoxy
Reduce the entrance of air in resin and in 70 DEG C of water-baths in fully middle stirring at low speed, mixed process as far as possible;
3) the MF hollow microspheres screened are preheated to 70 DEG C, then it is put into mixer with pre- hot resin be sufficiently mixed;
4) mold bottom layer overlay water conservancy diversion screen cloth will be vacuumized, and releasing agent is coated in the face of mould six, 70 DEG C are preheated to, will be mixed
Epoxy resin solution after conjunction is added in preheated mold, using powerful vacuum pump to its deaeration 10 minutes, then 70 DEG C, often
Pressure solidification 4h compression moldings, solidification is naturally cooled to after terminating to be obtained filling asphalt mixtures modified by epoxy resin with MF hollow microspheres after room temperature, the demoulding
Aliphatic radical high-strength light solid buoyancy material.
2. neo-epoxy resin base high-strength light solid buoyancy material according to claim 1, it is characterised in that:Step 1)
In, MF hollow microspheres are washed before drying using deionized water to it, it is ensured that MF hollow microspheres surface is clean, improve MF hollow
The interface cohesion of microballoon and epoxy resin.
3. neo-epoxy resin base high-strength light solid buoyancy material according to claim 1, it is characterised in that:Step 2)
In, epoxy resin adds diluent, defoamer with curing agent and stirred before combination, the epoxy resin:Curing agent:It is dilute
Release agent:The mass ratio of defoamer is 100:80:10:5.
4. neo-epoxy resin base high-strength light solid buoyancy material according to claim 1, it is characterised in that:Step 4)
In, the solidification process whole process of buoyant material is carried out in mould is vacuumized, it is to avoid heat expansion causes volumetric expansion.
5. neo-epoxy resin base high-strength light solid buoyancy material according to claim 1, it is characterised in that:Step 4)
In, buoyant material solidification completion is cooled to after room temperature, needs further to carry out secondary solidification at 50 DEG C, buoyant material is improved with this
Performance.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109082073A (en) * | 2018-06-11 | 2018-12-25 | 哈尔滨工程大学 | Volume may expand preparation and the application method of solid buoyancy material |
CN112625399A (en) * | 2020-12-17 | 2021-04-09 | 哈尔滨工程大学 | Solid buoyancy material, negative pressure suction casting device for preparing same and preparation method of negative pressure suction casting device |
CN114381088A (en) * | 2020-10-16 | 2022-04-22 | 中国科学院理化技术研究所 | High-strength solid buoyancy material and preparation method thereof |
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CN105153386A (en) * | 2015-10-19 | 2015-12-16 | 南京工程学院 | Preparation method and application of hollow melamine formaldehyde resin microspheres |
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2017
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US6476087B1 (en) * | 2000-06-20 | 2002-11-05 | Roberto De Toffol | Method of manufacturing syntactic foam |
CN101824206A (en) * | 2010-04-28 | 2010-09-08 | 清华大学深圳研究生院 | Ultra-high-strength buoyancy material and preparation method thereof |
CN105153386A (en) * | 2015-10-19 | 2015-12-16 | 南京工程学院 | Preparation method and application of hollow melamine formaldehyde resin microspheres |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109082073A (en) * | 2018-06-11 | 2018-12-25 | 哈尔滨工程大学 | Volume may expand preparation and the application method of solid buoyancy material |
CN114381088A (en) * | 2020-10-16 | 2022-04-22 | 中国科学院理化技术研究所 | High-strength solid buoyancy material and preparation method thereof |
CN112625399A (en) * | 2020-12-17 | 2021-04-09 | 哈尔滨工程大学 | Solid buoyancy material, negative pressure suction casting device for preparing same and preparation method of negative pressure suction casting device |
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Application publication date: 20170929 |