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 PDF

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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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Pending
Application number
CN201710647356.8A
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Chinese (zh)
Inventor
张春祥
张梦雪
叶圣
陈浩
王袁杰
夏雨
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Nanjing Institute of Technology
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Nanjing Institute of Technology
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Priority to CN201710647356.8A priority Critical patent/CN107216617A/en
Publication of CN107216617A publication Critical patent/CN107216617A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/20Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08L61/26Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C08L61/28Condensation 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

A kind of preparation method of neo-epoxy resin base high-strength light solid buoyancy material
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.
CN201710647356.8A 2017-08-01 2017-08-01 A kind of preparation method of neo-epoxy resin base high-strength light solid buoyancy material Pending CN107216617A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
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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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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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)

* Cited by examiner, † Cited by third party
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