CN106832791A - A kind of low-density and high-strength structural foam preparation method - Google Patents
A kind of low-density and high-strength structural foam preparation method Download PDFInfo
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- CN106832791A CN106832791A CN201510879590.4A CN201510879590A CN106832791A CN 106832791 A CN106832791 A CN 106832791A CN 201510879590 A CN201510879590 A CN 201510879590A CN 106832791 A CN106832791 A CN 106832791A
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Abstract
The present invention relates to a kind of low-density and high-strength structural foam preparation method, the preparation method using epoxy resin, epoxide diluent, silane coupler, be pre-mixed by hollow glass micropearl and tiny balloon, mediated 15 minutes in input kneader, curing agent is added to continue to mediate 25 minutes, it is well mixed to material, it is placed in a mould, it is hot-forming in vulcanizing press, after the demoulding, solid buoyancy material blank is obtained by solidify afterwards, the blank of machined finishing is bonded to solid buoyancy material block.The present invention solves the problem that solid buoyancy material density is difficult to control poor reproducibility, solid buoyancy material is applied to different use occasions, expands range of application.
Description
Technical field
The present invention relates to a kind of low-density and high-strength structural foam, and in particular to a kind of low-density and high-strength structural foam preparation method.
Background technology
Solid buoyancy material mainly has following several types at present：Chemical blowing foamed material, copolymer foam material, composite foam material and synthesis composite foam material.The U.S. starts developing solid buoyant material the sixties in 20th century, and compressive strength is 5.5Mpa when the solid buoyancy material density that USN's Applied Science Laboratory is developed is 0.35g/cm3.Solid buoyancy material preparation method report is more, United States Patent (USP) US 4829094, US 4843104, US 4902722, US 4916173, US 4595623, US 6166109 have reported the solid buoyancy material that some are prepared using distinct methods, including chemical blowing foamed material, copolymer foam material, composite foam material.
Chinese patent CN200410030821.6 reports solid buoyancy material prepared by a kind of chemical blowing process, is made up of core and facestock, and the solid buoyancy material density is 0.33g/cm3, and compressive strength is 5.5Mpa.Chinese patent CN200610043524.4 reports a kind of workable solid buoyancy material for deep sea, is that a kind of cenosphere filling epoxy resin prepares the method that can process solid buoyancy material.Solid buoyancy material of different shapes can be as requested processed into, the material can prepare various standard modules of different shapes using processing methods such as car, saw, plane, brills, to meet different occasions the need for.Chinese patent CN200710144488.5 has reported a kind of deep water overpressure resistant buoyance material, including the spherical Inner bases being made up of light material, the composite layer of ceramics or the enhanced aluminium alloy of CNT or resin matrix is laid in outer surface, makes it that more preferable hydrostatic pressing ability is born under deepwater environment.Chinese patent CN201010163843.5 reports a kind of superhigh intensity solid buoyancy material, is obtained with by the hollow glass micropearl of silane coupler activating pretreatment by high strength epoxy resin, 60-93Mpa of density of material 0.65-0.83g/cm3 compressive strengths.Above patent does not report the method for requiring that density prepares high intensity buoyant material as expected.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention proposes a kind of low-density and high-strength structural foam preparation method, the density that methods described can set as expected, by selecting high strength epoxy resin and its curing system, the different buoyancy adjustment medium of filling, standard cenosphere is screened and carries out level by its particle size and is matched somebody with somebody, obtained solid buoyancy material is reached the density of expected requirement, its density variation is maintained in the range of 0.02g/ cm3.To solve the problem that solid buoyancy material density is difficult to control poor reproducibility.Solid buoyancy material is applied to different use occasions, expand range of application.
The technical scheme is that：A kind of low-density and high-strength structural foam preparation method, the preparation method using epoxy resin, epoxide diluent, silane coupler, be pre-mixed by hollow glass micropearl and tiny balloon, mediated 15 minutes in input kneader, curing agent is added to continue to mediate 25 minutes, it is well mixed to material, it is placed in a mould, it is hot-forming in vulcanizing press, after the demoulding, solid buoyancy material blank is obtained by solidify afterwards, the blank of machined finishing is bonded to solid buoyancy material block, concretely comprises the following steps：
1）The density for setting as expected, to the hollow glass micropearl and particle diameter of particle diameter 20--140um for 60-325 mesh tiny balloons are screened, the particle diameter according to cenosphere carries out ratio collocation, and adds big particle diameter tiny balloon in right amount and carry out Auto-regulating System of Density of Heavy Medium；
2) selection epoxy resin, curing agent and suitable epoxide diluent and silane coupler；
3）The cenosphere and tiny balloon that level is matched somebody with somebody are filled in epoxy systems, well mixed to be placed in mould, hot-forming with vulcanizing press, and the demoulding is obtained solid buoyancy material blank through solidify afterwards, are bonded by blank and are formed solid buoyancy material block；
Described epoxy resin includes：Bisphenol A epoxide resin（E—51、E—52、E—44）, bisphenol-s epoxy resin（830S）, cycloaliphatic epoxy resin（H—71、6201）Or heterocyclic-type epoxy resin（TDE—85、712）；
Described epoxide diluent includes：N-butyl glycidyl ether（BGE）, phenyl glycidyl ether（PGE）, diglycidyl ether（DGE）, diglycidylaniline（DGA）Or trihydroxymethylpropanyltri diglycidyl ether（TMPGE）；
Described silane coupler includes：3-（2,3- glycidoxies）Propyl trimethoxy silicane（KH560）, 3- aminopropyl trimethoxysilanes（KH550）Or r- methacryloxypropyl trimethoxy silanes（KH570）.
Solid buoyancy material chemical composition is as follows：The mass parts 45-29 of epoxy resin, epoxide diluent
Mass parts 11-8, the mass parts 19-13.5 of curing agent, the mass parts 3-1.5 of silane coupler, buoyancy adjustment medium
Mass parts 22-48.
Described curing agent includes：Polyamide（300#、400#、650、651）, acid anhydrides（MeTHPA）, aromatic polyamine（DDM、DDS）, fatty amine（593）Or alicyclic polyamine（IPDA）.
Described buoyancy adjustment medium includes：The M companies hollow glass micropearl of the U.S. three, 0.125-0.60g/cm3 of density range, Bangbu frp industry design and research institute hollow glass micropearl, 0.22-0.51g/ of density range cm3, mine research institute of Ma'an Mountain hollow glass micropearl, 0.15-0.60g/ of density range cm3；Shanghai glass steel mill hollow glass ball, Suzhou chemical plant phenolic aldehyde hollow ball, Guangzhou Yi Gao Chemical Co., Ltd.s hollow sphere polymer or the M companies hollow ceramic ball of the U.S. three.
Beneficial effects of the present invention are：
The present invention uses high strength epoxy resin and its curing system, fills buoyancy adjustment medium, hollow glass micropearl is screened and carries out level by its particle size and is matched somebody with somebody, and big particle diameter hollow ball is added in right amount carries out Auto-regulating System of Density of Heavy Medium.Solid buoyancy material is set to reach the density of expected requirement, its density variation is maintained in the range of 0.02g/cm3.Density reappearance is good between obtained each batch of solid buoyancy material, is easy to by the density production solid buoyancy material of user's requirement.
Specific embodiment
The present invention is described in further detail with reference to embodiment：
The solid buoyancy material of embodiment 1-6 formula and material performance index are listed in Table 1 below, and embodiment shows, can be matched somebody with somebody with level according to hollow glass micropearl in buoyancy adjustment medium and tiny balloon screening, and the solid buoyancy material density for requiring as expected is adjusted.
For latent solid buoyancy material, resistance to hydrostatic pressure intensity is improved compressive strength high under water, so that the serviced depth of water of material increases.Under identical compressive strength, the density of material is lower, and the available quiet buoyancy of same volume buoyant material is bigger.But when density is less than limiting value, the permeability rate of deep diving solid buoyancy material increases.
The embodiment parameter comparison sheet of table 1
Embodiment 1 in table 1, buoyancy adjustment medium is 0.15g/cm by 90% density3Hollow glass micropearl and 10% density be 0.065g/cm3Tiny balloon level accounts for the 22% of prescription quality number with forming.Obtained solid buoyancy material density 0.38g/cm3, compressive strength 14Mpa.
Embodiment 2, buoyancy adjustment medium accounts for the 24% of prescription quality part, is 0.15g/cm by 50% density3Hollow glass micropearl, 30% density be 0.25g/cm3Hollow glass micropearl and 20% density be 0.065g/cm3Tiny balloon level is with forming.Solid buoyancy material density 0.45g/cm3, compressive strength 19Mpa.
3,4,5,6 four formulas of embodiment, are all to be matched somebody with somebody to form by the hollow glass micropearl level of different densities, except that the buoyancy adjustment medium of embodiment 3, accounts for the 31% of prescription quality part, it is 0.38g/cm by 50% density3It is 0.25g/cm with 50% density3Hollow glass micropearl level match somebody with somebody；The buoyancy adjustment medium of embodiment 4, accounts for the 44% of prescription quality part, is 0.38g/cm by 80% density3It is 0.25g/cm with 20% density3Hollow glass micropearl level match somebody with somebody；The buoyancy adjustment medium of embodiment 5, accounts for the 47.2% of prescription quality part, is 0.38g/cm by 60% density3It is 0.60g/cm with 40% density3Hollow glass micropearl level match somebody with somebody；The buoyancy adjustment medium of embodiment 6, accounts for the 48% of prescription quality part, is 0.38g/cm by 30% density3It is 0.60g/cm with 70% density3Hollow glass micropearl level with forming.With the increase of buoyancy adjustment medium consumption in formula, solid buoyancy material density and compressive strength are accordingly improved, as shown in table 1.
Claims (1)
1. a kind of low-density and high-strength structural foam preparation method, the preparation method utilizes epoxy resin, epoxide diluent, silane coupler, it is pre-mixed by hollow glass micropearl and tiny balloon, mediated 15 minutes in input kneader, curing agent is added to continue to mediate 25 minutes, it is well mixed to material, it is placed in a mould, it is hot-forming in vulcanizing press, after the demoulding, solid buoyancy material blank is obtained by solidify afterwards, the blank of machined finishing is bonded to solid buoyancy material block, concretely comprises the following steps：
1）The density for setting as expected, to the hollow glass micropearl and particle diameter of particle diameter 20--140um for 60-325 mesh tiny balloons are screened, the particle diameter according to cenosphere carries out ratio collocation, and adds big particle diameter tiny balloon in right amount and carry out Auto-regulating System of Density of Heavy Medium；
2) selection epoxy resin, curing agent and suitable epoxide diluent and silane coupler；
3）The cenosphere and tiny balloon that level is matched somebody with somebody are filled in epoxy systems, well mixed to be placed in mould, and, the demoulding hot-forming with vulcanizing press is obtained solid buoyancy material blank by solidify afterwards, is bonded by blank and forms solid buoyancy material block；
Described epoxy resin includes：Bisphenol A epoxide resin, bisphenol-s epoxy resin, cycloaliphatic epoxy resin or heterocyclic-type epoxy resin；
Described epoxide diluent includes：N-butyl glycidyl ether BGE, phenyl glycidyl ether PGE, diglycidyl ether DGE, diglycidylaniline DGA or trihydroxymethylpropanyltri diglycidyl ether TMPGE；
Described silane coupler includes：3-（2,3- glycidoxies）Propyl trimethoxy silicane KH560,3- aminopropyl trimethoxysilane KH550 or r- methacryloxypropyl trimethoxy silane KH570.
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| CN201510879590.4A CN106832791A (en) | 2015-12-05 | 2015-12-05 | A kind of low-density and high-strength structural foam preparation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020135779A1 (en) * | 2018-12-29 | 2020-07-02 | 中国科学院理化技术研究所 | Solid buoyancy material and preparation method therefor and use thereof |
| CN112549695A (en) * | 2020-12-04 | 2021-03-26 | 湖北三江航天红阳机电有限公司 | Preparation method of multi-component low-density glass bead prepreg cloth |
| CN113213963A (en) * | 2021-06-26 | 2021-08-06 | 江西陶瓷工艺美术职业技术学院 | Light refractory material prepared from construction waste and preparation method thereof |
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2015
- 2015-12-05 CN CN201510879590.4A patent/CN106832791A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020135779A1 (en) * | 2018-12-29 | 2020-07-02 | 中国科学院理化技术研究所 | Solid buoyancy material and preparation method therefor and use thereof |
| CN111378244A (en) * | 2018-12-29 | 2020-07-07 | 中国科学院理化技术研究所 | A kind of solid buoyancy material and its preparation method and use |
| CN111378244B (en) * | 2018-12-29 | 2022-02-01 | 中国科学院理化技术研究所 | Solid buoyancy material and preparation method and application thereof |
| CN112549695A (en) * | 2020-12-04 | 2021-03-26 | 湖北三江航天红阳机电有限公司 | Preparation method of multi-component low-density glass bead prepreg cloth |
| CN112549695B (en) * | 2020-12-04 | 2022-07-08 | 湖北三江航天红阳机电有限公司 | Preparation method of multi-component low-density glass bead prepreg cloth |
| CN113213963A (en) * | 2021-06-26 | 2021-08-06 | 江西陶瓷工艺美术职业技术学院 | Light refractory material prepared from construction waste and preparation method thereof |
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Application publication date: 20170613 |