CN102993684B - Polyurethane material of glass flake as well as preparation method and application thereof - Google Patents
Polyurethane material of glass flake as well as preparation method and application thereof Download PDFInfo
- Publication number
- CN102993684B CN102993684B CN201210397536.2A CN201210397536A CN102993684B CN 102993684 B CN102993684 B CN 102993684B CN 201210397536 A CN201210397536 A CN 201210397536A CN 102993684 B CN102993684 B CN 102993684B
- Authority
- CN
- China
- Prior art keywords
- glass flake
- performed polymer
- polyurethane material
- glass
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a polyurethane material of a glass flake as well as a preparation method and an application thereof. The preparation method comprises the steps of: preparing a prepolymer of PPG-200 polyether polyhydric alcohol and toluene diisocynate according to a molar ratio of (1:1.8)-(1:2.4); adding the glass flake which is 15-30%wt of the prepolymer; using a bimethylmercapto toluenediamine hardener which is 7-11.2wt% of the prepolymer; and agitating uniformly and carrying out pouring reaction to prepare the cured formed material. The material provided by the invention has an excellent water sound absorbing performance at 2-20kHz frequency range. The curing system is in a liquid state at normal temperature, and free from the heating process. The polyurethane material can be directly mixed and poured and has a good room temperature curing characteristic, so that field pouring construction of large members and complex curved surfaces can be realized.
Description
Technical field
The present invention relates to a kind of field of functional materials technology, particularly a kind of glass flake polyurethane material and its preparation method and application.
Background technology
Underwater acoustic absorption material can absorb in Underwater Acoustics Engineering or the material of dissipation acoustic energy, and sound wave can be inhaled people by this material no reflection events, and has large decay, and the incident acoustic energy overwhelming majority is absorbed.The kind of underwater acoustic absorption material is a lot, and urethane underwater acoustic materials is the novel underwater acoustic absorption material of polymer class that developed recently gets up.
The special Soft hard segment structure of polyurethane material makes it just can synthesize the polymkeric substance with different physics and acoustical behavior by changing segmented polyurethane and soft segment molecule structure and their relative proportion, thus being met the polyurethane material of different performance requirement, this is provide a kind of good approach from the acoustical behavior of the Angle ambiguity polymkeric substance of microtexture.In addition, urethane has excellent intensity, sticking power, wear resistance, resistance to medium, and its excellent mechanical property and erosion resistance also make it compare synthetic rubber to have longer work-ing life, be a kind of underwater acoustic materials with applications well prospect.Casting PU is the one of polyurethane material, also known as liquid polyurethane rubber, is a kind of polymkeric substance be cross-linked with vulcabond (rigid segment) by polyether/polyester glycol (soft segment) by polyaddition.Casting PU is usually with two part liquid supplies.These two kinds of components are mixed and pours into a mould or be ejected in model and form solid polymer through reaction, therefore can pour into the three-dimensional section bar of size complexity with simple instrument.
At present, carry out the research of more casting PU material in damping application aspect, by the structure design of the inner hard and soft chain segment of urethane, the cast polyurethane material having many damping capacities excellent is seen in report, as patent CN86108949A reports a kind of damping material with wide-temperature range of urethane/polyvinyl chloride interpenetrating(polymer)networks.But the correlative study of casting PU underwater acoustic materials report is less.Relevant work was done by the R&D institutions such as naval engineering university, and its sound absorbing capabilities realizes mainly through adding the fillers such as metal-powder, hollow glass micropearl, mica.
Curing system is not suitable for the solidification under room temperature condition.Patent CN101418185A reports a kind of preparation method of polyurethane sound absorption coating, and patent CN2869014Y reports a kind of polyurethane foam sound-absorbing material, but above-mentioned patent is all for air-borne sound, can not meet the application requiring of underwater acoustic materials.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of glass flake polyurethane material and its preparation method and application, preparation high-performance casting PU underwater acoustic absorption material.
In order to realize the object solved the problems of the technologies described above, present invention employs following technical scheme:
A kind of glass flake polyurethane material of the present invention, be characterised in that: glass flake polyurethane material is, according to mol ratio 1:1.8 ~ 1:2.4, PPG-2000 polyether glycol and tolylene diisocyanate are made performed polymer, add the glass flake accounting for performed polymer 15% ~ 30% weight, use the dimethythiotoluene diamine solidifying agent accounting for 7% ~ 11.2% of performed polymer weight ratio, carry out after stirring pouring into a mould reacted curing molding material.
A kind of glass flake polyurethane material preparation method of the present invention, comprise: add the glass flake accounting for performed polymer 15% ~ 30% in terminal isocyanate group performed polymer TDI and tolylene diisocyanate and PPG-2000 polyether glycol prepared according to the ratio of mol ratio 1:1.8 ~ 1:2.4, fully form component A after mixing froth in vacuum; Join in component A according to the ratio of performed polymer and DMTDA and dimethythiotoluene diamine solidifying agent weight ratio 100:7 ~ 11.2 by DMTDA, pour into a mould after stirring, after casting complete, self-vulcanizing is shaping can obtain glass flake polyurethane material.
Concrete further, described glass flake is the flaky material be prepared into through centrifugal or inflation fragmentation by the glass melt under molten state more than 1200 DEG C, and mean thickness is 3.5 ~ 6um, and Average Particle Diameters is 20 order ~ 200 orders.
A kind of glass flake polyurethane material of the present invention is as the application of underwater acoustic absorption material.Material has excellent Underwater Sound Absorption Properties in 2-20kHz frequency range.
Characteristic feature of an invention is:
The present invention adopts that TDI is hard segment, polyether glycol is soft chain segment, has synthesized the base polyurethane prepolymer for use as being applicable to underwater acoustic materials, performed polymer modest viscosity, has been convenient to the formulating of recipe of carrying out acoustical material.Polyether segment gives material good sea water resistance performance, is applicable to prepare underwater acoustic materials.The present invention by adding glass flake functional stuffing in performed polymer, and material has excellent Underwater Sound Absorption Properties in 2-20kHz frequency range.
The present invention adopts DMTDA curing system, and be liquid under this curing system normal temperature, more traditional solid cure system, without the need to heating process, directly can mix cast.This curing system has good self-vulcanizing characteristic, can realize large-scale component and the construction of complex-curved cast-in-site.
By adopting technique scheme, the present invention has following beneficial effect:
The present invention by adding glass flake functional stuffing in performed polymer, and material has excellent Underwater Sound Absorption Properties in 2-20kHz frequency range.Be liquid under curing system normal temperature of the present invention, without the need to heating process, directly can mix cast, there is good self-vulcanizing characteristic, large-scale component and the construction of complex-curved cast-in-site can be realized.
Embodiment
Below in conjunction with embodiment, further explanation is explained to this patent.But the protection domain of this patent is not limited to concrete embodiment.
Embodiment 1
The concrete steps of glass flake polyurethane material preparation method proposed by the invention are as follows:
(1) take 200g polyether glycol PPG-2000 to put into vacuum drying oven 90 DEG C and vacuumize dry 2 hours.
(2) in 500mL there-necked flask, add dried polyether glycol, add 31.8gTDI to constant pressure funnel.
(3) progressively instilled in there-necked flask by the TDI in constant pressure funnel, feed time controlled within 5 minutes.Start agitator, logical nitrogen protection.React 3 hours at 80 DEG C of temperature, can performed polymer be synthesized.
(4) take performed polymer 150g, add 20 order glass flake 45g, stir, then vacuumize de-bubble 15min at 85 DEG C, material is injected dry brown container, and logical nitrogen keeps in Dark Place.Glass flake thickness specification is 4.5um, median size 80 order.
(5) the DMTDA solidifying agent 10.5g after metering is joined in the performed polymer after process, stir with glass stick and performed polymer and solidifying agent are mixed.
(6) mixed material is injected surface to be cast, self-vulcanizing.Material solidifies at room temperature to be tested with pulse sound pipe for 7 days afterwards.
The test result of embodiment 1 is as shown in table 1.
The acoustical behavior test result of table 1 embodiment 1
| Frequency (KHz) | Sound absorption coefficient (%) |
| 2.2 | 93.9 |
| 2.4 | 98.8 |
| 2.6 | 96.5 |
| 2.8 | 91.4 |
| 3 | 86.9 |
| 3.2 | 83.9 |
| 3.4 | 81.3 |
| 3.6 | 81.1 |
| 3.8 | 81.6 |
| 4.0 | 81.1 |
| 4.5 | 77.9 |
| 5 | 77.6 |
| 5.5 | 77.5 |
| 6 | 78.7 |
| 6.5 | 80.2 |
| 7 | 82.7 |
| 7.5 | 86.0 |
| 8 | 89.7 |
| 9 | 92.0 |
| 10 | 90.8 |
| 11 | 93.4 |
| 12 | 90.3 |
| 13 | 89.8 |
| 14 | 91.0 |
| 15 | 93.5 |
| 16 | 94.9 |
| 17 | 94.6 |
| 18 | 94.1 |
| 19 | 93.0 |
| 20 | 93.8 |
Embodiment 2
The concrete steps of glass flake polyurethane material preparation method proposed by the invention are as follows:
(1) take 200g polyether glycol PPG-2000 to put into vacuum drying oven 90 DEG C and vacuumize dry 3 hours.
(2) in 500mL there-necked flask, add dried polyether glycol, add 37.02gTDI to constant pressure funnel.
(3) instilled in there-necked flask by the TDI in constant pressure funnel, feed time controlled within 5 minutes.Start agitator, logical nitrogen protection.React 3 hours at 80 DEG C of temperature, can performed polymer be synthesized.
(4) take performed polymer 150g, add the 100 order glass flake 22.5g that mean thickness specification is 5.5um, stir, then vacuumize de-bubble 15min at 85 DEG C, material is injected dry brown container, and logical nitrogen keeps in Dark Place.
(5) the DMTDA solidifying agent 13.5g after metering is joined in the performed polymer after process, stir with glass stick and performed polymer and solidifying agent are mixed.
(6) mixed material is injected surface to be cast, self-vulcanizing.Material solidifies at room temperature to be tested with pulse sound pipe for 7 days afterwards.
The test result of embodiment 2 is as shown in table 2.
The acoustical behavior test result of table 2 embodiment 2
| Frequency (KHz) | Sound absorption coefficient (%) |
| 2.2 | 51.2 |
| 2.4 | 70.3 |
| 2.6 | 84.6 |
| 2.8 | 94.4 |
| 3 | 98.5 |
| 3.2 | 99.9 |
| 3.4 | 99.8 |
| 3.6 | 99.4 |
| 3.8 | 98.9 |
| 4.0 | 98.1 |
| 4.5 | 96.1 |
| 5 | 95.6 |
| 5.5 | 95.2 |
| 6 | 95.2 |
| 6.5 | 95.2 |
| 7 | 94.8 |
| 7.5 | 94.2 |
| 8 | 93.5 |
| 9 | 91.5 |
| 10 | 89.2 |
| 11 | 96.8 |
| 12 | 99.2 |
| 13 | 99.9 |
| 14 | 98.8 |
| 15 | 97.2 |
| 16 | 95.4 |
| 17 | 94.4 |
| 18 | 95.1 |
| 19 | 96.0 |
| 20 | 97.7 |
Embodiment 3
The concrete steps of glass flake polyurethane material preparation method proposed by the invention are as follows:
(1) take 200g polyether glycol PPG-2000 to put into vacuum drying oven 90 DEG C and vacuumize dry 3 hours.
(2) in 500mL there-necked flask, add dried polyether glycol, add 42.5gTDI to constant pressure funnel.
(3) instilled in there-necked flask by the TDI in constant pressure funnel, feed time controlled within 5 minutes.Start agitator, logical nitrogen protection.React 3 hours at 80 DEG C of temperature, can performed polymer be synthesized.
(4) take performed polymer 150g, add the 200 order glass flake 37.5g that mean thickness specification is 5um, stir, then vacuumize de-bubble 15min at 85 DEG C, material is injected dry brown container, and logical nitrogen keeps in Dark Place.
(5) the DMTDA solidifying agent 16.8g after metering is joined in the performed polymer after process, stir with glass stick and performed polymer and solidifying agent are mixed.
(6) mixed material is injected surface to be cast, self-vulcanizing.Material solidifies at room temperature to be tested with pulse sound pipe for 7 days afterwards.
The test result of embodiment 3 is as shown in table 3.
The acoustical behavior test result of table 3 embodiment 3
| Frequency (KHz) | Sound absorption coefficient (%) |
| 2.2 | 94.5 |
| 2.4 | 85.9 |
| 2.6 | 78.9 |
| 2.8 | 73.5 |
| 3 | 72.2 |
| 3.2 | 69.9 |
| 3.4 | 67.5 |
| 3.6 | 65.3 |
| 3.8 | 66.1 |
| 4.0 | 65.0 |
| 4.5 | 62.2 |
| 5 | 64.5 |
| 5.5 | 65.1 |
| 6 | 67.6 |
| 6.5 | 68.4 |
| 7 | 69.3 |
| 7.5 | 71.0 |
| 8 | 85.8 |
| 9 | 84.8 |
| 10 | 81.8 |
| 11 | 87.4 |
| 12 | 92.0 |
| 13 | 96.8 |
| 14 | 98.9 |
| 15 | 98.9 |
| 16 | 97.6 |
| 17 | 95.8 |
| 18 | 94.1 |
| 19 | 92.6 |
| 20 | 93.4 |
Claims (3)
1. a glass flake polyurethane material, it is characterized in that: glass flake polyurethane material is, according to mol ratio 1:1.8 ~ 1:2.4, PPG-2000 polyether glycol and tolylene diisocyanate are made performed polymer, add the glass flake accounting for performed polymer 15% ~ 30% weight, use the dimethythiotoluene diamine solidifying agent accounting for 7% ~ 11.2% of performed polymer weight ratio, carry out after stirring pouring into a mould reacted curing molding material; Glass flake is the flaky material be prepared into through centrifugal or inflation fragmentation by the glass melt under molten state more than 1200 DEG C, and mean thickness is 3.5 ~ 6um, and size is 20 order ~ 200 orders.
2. a glass flake polyurethane material preparation method, it is characterized in that: add the glass flake accounting for performed polymer 15% ~ 30% in terminal isocyanate group performed polymer TDI and tolylene diisocyanate and PPG-2000 polyether glycol prepared according to the ratio of mol ratio 1:1.8 ~ 1:2.4, fully form component A after mixing froth in vacuum; Join in component A according to the ratio of performed polymer and DMTDA and dimethythiotoluene diamine solidifying agent weight ratio 100:7 ~ 11.2 by DMTDA, pour into a mould after stirring, after casting complete, self-vulcanizing is shaping can obtain glass flake polyurethane material; Described glass flake is the flaky material be prepared into through centrifugal or inflation fragmentation by the glass melt under molten state more than 1200 DEG C, and mean thickness is 3.5 ~ 6um, and size is 20 order ~ 200 orders.
3. glass flake polyurethane material described in a claim 1 is as the application of underwater acoustic absorption material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210397536.2A CN102993684B (en) | 2012-10-19 | 2012-10-19 | Polyurethane material of glass flake as well as preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210397536.2A CN102993684B (en) | 2012-10-19 | 2012-10-19 | Polyurethane material of glass flake as well as preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102993684A CN102993684A (en) | 2013-03-27 |
| CN102993684B true CN102993684B (en) | 2015-03-04 |
Family
ID=47922827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210397536.2A Expired - Fee Related CN102993684B (en) | 2012-10-19 | 2012-10-19 | Polyurethane material of glass flake as well as preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102993684B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017161A (en) * | 2014-06-19 | 2014-09-03 | 上海瑞义聚氨酯科技有限公司 | Polyurethane anechoic tile product and preparation method thereof |
| CN106589284A (en) * | 2016-12-27 | 2017-04-26 | 柳州市金岭汽车配件厂 | Soundproof material for automobiles and preparation method for soundproof material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665654A (en) * | 2009-08-16 | 2010-03-10 | 青岛理工大学 | Spraying polyurethane-urea damping vibration-damping noise-reducing material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999821A (en) * | 2007-01-25 | 2007-07-18 | 张凤焘 | Anti-corrosion treating process for inner wall of metal tube |
| CN102260368A (en) * | 2010-05-27 | 2011-11-30 | 西北橡胶塑料研究设计院 | Polyurethane elastomer damper material and its preparation method |
-
2012
- 2012-10-19 CN CN201210397536.2A patent/CN102993684B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665654A (en) * | 2009-08-16 | 2010-03-10 | 青岛理工大学 | Spraying polyurethane-urea damping vibration-damping noise-reducing material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102993684A (en) | 2013-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103408252B (en) | A kind of high impact toughness artificial quartz stone plate and preparation method | |
| CN101560077B (en) | Epoxy resin mortar composite used for plate type fragment-free track | |
| CN100386379C (en) | Hollow microbead reinforced epoxy resin composite material and its preparation method | |
| CN102906188B (en) | Eco-friendly aqueous epoxy resins composition and use thereof | |
| CN104163017B (en) | A kind of composite artificial stone sheet material and preparation method thereof | |
| CN102337007B (en) | High-performance epoxy resin composition for sheet molding compound (SMC) | |
| CN102146196B (en) | Preparation method of high damping epoxy resin composite | |
| CN103467694B (en) | A kind of polyurethane plate and preparation method thereof | |
| JP6367817B2 (en) | Polyethylenetetraamine-containing epoxy resin system for resin transfer molding process | |
| CN100425651C (en) | Structural wave-absorbing composite material containing magnetic glass fiber and preparation method thereof | |
| CN102452807A (en) | Silica sand composition, formed body and preparation method for formed body | |
| CN101824206A (en) | Ultra-high-strength buoyancy material and preparation method thereof | |
| CN101229574A (en) | Method of preparing water-soluble mold core | |
| CN102993684B (en) | Polyurethane material of glass flake as well as preparation method and application thereof | |
| CN102585443A (en) | Light high-strength buoyancy material and preparation method thereof | |
| CN103131162B (en) | Specially-used enhanced polyurethane sealing water-stopping material and production method thereof | |
| CN105418881A (en) | Polyurea foam material and preparation method thereof | |
| CN111269557A (en) | Preparation method of hollow nano microsphere modified high-molecular heat-insulation material | |
| CN109135512A (en) | A kind of building template release coating | |
| CN108048007B (en) | Composite modified epoxy resin structural adhesive, composite modifier and preparation method of structural adhesive | |
| CN113416510B (en) | Epoxy resin pouring sealant and preparation method thereof | |
| CN107098668B (en) | A kind of inorganic gel matrix composite foamed material and preparation method thereof | |
| CN104845045A (en) | Room-temperature curable epoxy resin based high damping material and preparation method thereof | |
| CN103937166A (en) | Antistatic solid buoyancy material and preparation method thereof | |
| CN105541247A (en) | Modification technology of 3D printing-molded powder material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20151019 |
|
| EXPY | Termination of patent right or utility model |