CN107573482A - A kind of polyurethane buoyant material and preparation method thereof - Google Patents
A kind of polyurethane buoyant material and preparation method thereof Download PDFInfo
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- CN107573482A CN107573482A CN201710973534.6A CN201710973534A CN107573482A CN 107573482 A CN107573482 A CN 107573482A CN 201710973534 A CN201710973534 A CN 201710973534A CN 107573482 A CN107573482 A CN 107573482A
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Abstract
The invention discloses a kind of polyurethane buoyant material and preparation method thereof, include the component of following parts by weight：100 parts of Isocyanate prepolymers body, 40 60 parts of polymer polyatomic alcohol, 20 30 parts of chain extender, 35 parts of silane coupler, 65 80 parts of hollow glass microballoon.Methods described fills different buoyancy adjustment media by selecting Isocyanate prepolymers body and its curing system, and standard cenosphere is screened and carries out grading by its particle size, and in Standard Module（300*300*100cm3）In be heating and curing, obtained buoyant material is reached the density of expected requirement, its density variation is maintained at 0.02g/cm3In the range of, easily produce the problem destroyed when hitting to solve solid buoyancy material.
Description
Technical field
The present invention relates to a kind of polyurethane buoyant material and preparation method thereof.
Background technology
The material that buoyancy can be provided is referred to as buoyant material.Traditional buoyant material is typically using the low density liquid of encapsulation
Body（Such as gasoline, ammonia, silicone oil）, foamed material and polyolefine material etc..Smaller intensity, poor durability, appearance be present in these materials
The shortcomings of easily causing pollution.In recent years, the research of High-strength solid buoyancy material preparation is carried out using epoxy resin/hollow microsphere
As focus, but such material fragility is larger, easily produces destruction during shock.Prepared using polyurethane/hollow glass microballoon resistance to
The buoyant material of the depth of water, yet there are no relevant report within 3000m.
The content of the invention
For overcome the deficiencies in the prior art, the present invention proposes a kind of polyurethane buoyant material and its manufacture method.It is described
Method fills different buoyancy adjustment media, to standard cenosphere by selecting Isocyanate prepolymers body and its curing system
Screen and carry out grading by its particle size, and in Standard Module（300*300*100cm3）In be heating and curing, make obtained floating
Dead-wood material reaches the density of expected requirement, and its density variation is maintained at 0.02g/cm3In the range of, existed with solving solid buoyancy material
The problem destroyed easily is produced during shock.
The technical scheme is that：A kind of polyurethane buoyant material and its manufacture method, the manufacture method utilize different
Cyanate performed polymer, polymer polyatomic alcohol, chain extender, silane coupler, hollow glass microballoon are pre-mixed, and put into extruder
In, mix 15 minutes in a heated state, be well mixed, be placed in a mould to material, shake and defoam through vibrating head, by mould
After tool sealing, cold curing shaping, after the demoulding, polyurethane buoyant material is made through solidify afterwards
Specifically, polyurethane buoyant material, include the component of following parts by weight：
100 parts of Isocyanate prepolymers body, polymer polyatomic alcohol 40-60 parts, chain extender 20-30 parts, silane coupler 3-5 parts, in
Empty glass microsphere 65-80 parts.
The preparation method of Isocyanate prepolymers body is：PPG is after dewater treatment, with isocyanates at 80 ± 2 DEG C
Lower reaction at least 4 hours, NCO content is 12~15%.
The weight of PPG and isocyanates ratio is in Isocyanate prepolymers body：1.5-2:1.
PPG be molecular weight 500~1000, the one kind or one kind of degree of functionality in 2~4 PPG
Composition described above；
Isocyanates is methyl diphenylene diisocyanate（MDI）, poly methylene poly phenyl poly isocyanate（PAPI）, different Fo Er
Ketone diisocyanate（PAPI）In one or more kinds of compositions；
The polymer polyatomic alcohol, it is characterised in that：Polymer polyatomic alcohol be molecular weight 200~600, degree of functionality is 2~4
One or more kinds of compositions in polymer polyatomic alcohol；
The chain extender, it is characterised in that：Chain extender be the chloro- 4,4'- diaminodiphenyl-methanes of 3,3'- bis-, 2,4- diaminourea-
3,5- dimethyl sulphur-baseds chlorobenzene, diethyl toluene diamine, dimethythiotoluene diamine, N, N'- dialkyl methyls diamines, 1,4- fourths two
One or more kinds of compositions in alcohol, triethanolamine, diethanol amine, triisopropanolamine；
The silane coupler, it is characterised in that：Silane coupler is：3-（2,3- glycidoxies）Propyl trimethoxy silicane
（KH560）, 3- aminopropyl trimethoxysilanes（KH550）, γ-methacryloxypropyl trimethoxy silane（KH570）
In one or more kinds of compositions；
The hollow glass microballoon, it is characterised in that：Described hollow glass micro-ball includes：3M companies of U.S. hollow glass is micro-
Ball, density range 0.125-0.60g/cm3, Bangbu frp industry design and research institute hollow glass micro-ball, density range 0.22-
0.51g/cm3, mine research institute of Ma'an Mountain hollow glass micro-ball, density range 0.15-0.60g/cm3。
The method for preparing the described polyurethane buoyant material of power, comprises the following steps：
（1）The density set as expected, the hollow glass that hollow glass microballoon and particle diameter to 20-140 μm of particle diameter are 60-325 μm
Glass microballoon is screened, and the density of selected glass microsphere is the 40% ~ 60% of buoyant material density；According to hollow glass microballoon
Particle diameter carries out ratio collocation, and its ratio is 1 ~ 2:1（Mass ratio）；
（2）Isocyanate prepolymers body and polymer polyatomic alcohol, chain extender, silane coupler mixed, and is added after grading
Empty glass microsphere premix；
（3）Put into extruder, mix 15 minutes at 120 ± 5 DEG C, be well mixed to material；
（4）Compound is squeezed into a mould, is shaken and defoamed with vibrating head, and mould sealing and reinforcing, cold curing are molded；
After the demoulding, polyurethane buoyant material is obtained through solidify afterwards.
Beneficial effects of the present invention
Polyurethane buoyant material prepared by the present invention can be with the water depth pressure within resistance to 3000m, and obtained buoyant material reaches
To expected desired density, its density variation is maintained at 0.02g/cm3In the range of, solve solid buoyancy material when hitting
Easily produce the problem destroyed.
Embodiment
Embodiment 1：
Isocyanate prepolymers body is by methyl diphenylene diisocyanate（MDI）It is more with molecular weight is 600, degree of functionality is 3 polyethers
First alcohol is made, and NCO% contents are 12%；Counted using Isocyanate prepolymers body as 100 parts, 40 parts of molecular weight of addition are 200, degree of functionality is
3 polymer polyatomic alcohol, chloro- 4, the 4'- diaminodiphenyl-methanes chain extenders of 30 parts of 3,3'- bis-, 3 parts of 3- aminopropyl trimethoxies
Silane coupler, after being uniformly mixed, 65 parts of hollow glass microballoons arranged in pairs or groups through ratio are added, extruder is added to after premix
In, after being mixed 15 minutes at 120 DEG C, it is injected into mould, while shaken and defoamed with vibrating head, when filling, mould is sealed；
Cold curing is molded for 12 hours, after the demoulding, solidify afterwards 6 hours at 80 DEG C.
Obtained buoyant material density is 0.59g/cm3, material absorbs water under uniaxial compressive strength 42MPa, 25MPa hydrostatic pressing
Rate is 1.35%.
Embodiment 2：
Isocyanate prepolymers body is by poly methylene poly phenyl poly isocyanate（PAPI）Be 800 with molecular weight, degree of functionality be 2 it is poly-
Ethoxylated polyhydric alcohol is made, and NCO% contents are 14%；Counted using Isocyanate prepolymers body as 100 parts, it is 500, function to add 60 parts of molecular weight
Spend the polymer polyatomic alcohol for 3,20 parts of N, N'- dialkyl methyl diamine chain stretching agents, 5 parts of 3- aminopropyl trimethoxysilanes couplings
Agent, after being uniformly mixed, 80 parts of hollow glass microballoons arranged in pairs or groups through ratio are added, are added to after premix in extruder, 100
After being mixed 15 minutes at DEG C, it is injected into mould, while is shaken and defoamed with vibrating head, when filling, mould is sealed；Cold curing
It is molded within 12 hours, after the demoulding, solidify afterwards 6 hours at 80 DEG C.
Obtained buoyant material density is 0.60g/cm3, material absorbs water under uniaxial compressive strength 44MPa, 25MPa hydrostatic pressing
Rate is 1.26%.
Claims (4)
1. a kind of polyurethane buoyant material, it is characterised in that include the component of following parts by weight：
100 parts of Isocyanate prepolymers body, polymer polyatomic alcohol 40-60 parts, chain extender 20-30 parts, silane coupler 3-5 parts, in
Empty glass microsphere 65-80 parts.
2. polyurethane buoyant material according to claim 1, it is characterised in that
The preparation method of Isocyanate prepolymers body is：PPG after dewater treatment, with isocyanates at 80 ± 2 DEG C it is anti-
Should be at least 4 hours, NCO content is 12~15%；
The weight of PPG and isocyanates ratio is in Isocyanate prepolymers body：1.5-2:1；
PPG be molecular weight 500~1000, one or more of the degree of functionality in 2~4 PPG
Composition；
Isocyanates is methyl diphenylene diisocyanate（MDI）, poly methylene poly phenyl poly isocyanate（PAPI）, different Fo Er
Ketone diisocyanate（PAPI）In one or more kinds of compositions.
3. polyurethane buoyant material according to claim 1, it is characterised in that
The polymer polyatomic alcohol, it is characterised in that：Polymer polyatomic alcohol be molecular weight 200~600, degree of functionality is 2~4
One or more kinds of compositions in polymer polyatomic alcohol；
The chain extender, it is characterised in that：Chain extender be the chloro- 4,4'- diaminodiphenyl-methanes of 3,3'- bis-, 2,4- diaminourea-
3,5- dimethyl sulphur-baseds chlorobenzene, diethyl toluene diamine, dimethythiotoluene diamine, N, N'- dialkyl methyls diamines, 1,4- fourths two
One or more kinds of compositions in alcohol, triethanolamine, diethanol amine, triisopropanolamine；
The silane coupler, it is characterised in that：Silane coupler is：3-（2,3- glycidoxies）Propyl trimethoxy silicane
（KH560）, 3- aminopropyl trimethoxysilanes（KH550）, γ-methacryloxypropyl trimethoxy silane（KH570）
In one or more kinds of compositions；
The hollow glass microballoon, it is characterised in that：Described hollow glass micro-ball includes：3M companies of U.S. hollow glass is micro-
Ball, density range 0.125-0.60g/cm3, Bangbu frp industry design and research institute hollow glass micro-ball, density range 0.22-
0.51g/cm3, mine research institute of Ma'an Mountain hollow glass micro-ball, density range 0.15-0.60g/cm3。
4. preparing the method for the polyurethane buoyant material described in claim 1 or 2, comprise the following steps：
（1）The density set as expected, the hollow glass that hollow glass microballoon and particle diameter to 20-140 μm of particle diameter are 60-325 μm
Glass microballoon is screened, and the density of selected glass microsphere is the 40% ~ 60% of buoyant material density；According to hollow glass microballoon
Particle diameter carries out ratio collocation, and its ratio is 1-2:1（Mass ratio）；
（2）Isocyanate prepolymers body and polymer polyatomic alcohol, chain extender, silane coupler mixed, and is added after grading
Empty glass microsphere premix；
（3）Put into extruder, mix 15 minutes at 120 ± 5 DEG C, be well mixed to material；
（4）Compound is squeezed into a mould, is shaken and defoamed with vibrating head, and mould sealing and reinforcing, cold curing are molded；
After the demoulding, polyurethane buoyant material is obtained through solidify afterwards.
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| CN201710973534.6A CN107573482A (en) | 2017-10-18 | 2017-10-18 | A kind of polyurethane buoyant material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824941A (en) * | 2019-03-07 | 2019-05-31 | 中国人民解放军海军工程大学 | A kind of preparation method of surface-grafted modified hollow glass microspheres of fluorine-containing resin |
| CN114057951A (en) * | 2021-11-22 | 2022-02-18 | 浙江深孚新材料科技有限公司 | Polyurethane composite flexible buoyancy material |
| CN114085347A (en) * | 2021-11-19 | 2022-02-25 | 苏州尚达新能源技术有限公司 | Floating body material for waterborne photovoltaic system and preparation method thereof |
| CN119143970A (en) * | 2024-11-15 | 2024-12-17 | 山东一诺威聚氨酯股份有限公司 | Hollow glass bead/TPU composite material for life jacket air bag and preparation method thereof |
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| GB2499683A (en) * | 2012-04-27 | 2013-08-28 | Balmoral Comtec Ltd | Low density macrosphere with hollow glass microsphere |
| CN106866933A (en) * | 2017-02-20 | 2017-06-20 | 上海材料研究所 | A kind of solid buoyancy material and preparation method thereof |
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| GB2499683A (en) * | 2012-04-27 | 2013-08-28 | Balmoral Comtec Ltd | Low density macrosphere with hollow glass microsphere |
| CN106866933A (en) * | 2017-02-20 | 2017-06-20 | 上海材料研究所 | A kind of solid buoyancy material and preparation method thereof |
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| 刘文栋: "空心玻璃微球的浮选及其在固体浮力材料中的复合应用技术研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824941A (en) * | 2019-03-07 | 2019-05-31 | 中国人民解放军海军工程大学 | A kind of preparation method of surface-grafted modified hollow glass microspheres of fluorine-containing resin |
| CN114085347A (en) * | 2021-11-19 | 2022-02-25 | 苏州尚达新能源技术有限公司 | Floating body material for waterborne photovoltaic system and preparation method thereof |
| CN114057951A (en) * | 2021-11-22 | 2022-02-18 | 浙江深孚新材料科技有限公司 | Polyurethane composite flexible buoyancy material |
| CN114057951B (en) * | 2021-11-22 | 2024-03-12 | 浙江深孚新材料科技有限公司 | Polyurethane composite flexible buoyancy material |
| CN119143970A (en) * | 2024-11-15 | 2024-12-17 | 山东一诺威聚氨酯股份有限公司 | Hollow glass bead/TPU composite material for life jacket air bag and preparation method thereof |
| CN119143970B (en) * | 2024-11-15 | 2025-04-04 | 山东一诺威聚氨酯股份有限公司 | Hollow glass bead/TPU composite material for life jacket air bag and preparation method thereof |
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Application publication date: 20180112 |
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