CN110563906B - Shape memory polyurethane and preparation method and application thereof - Google Patents
Shape memory polyurethane and preparation method and application thereof Download PDFInfo
- Publication number
- CN110563906B CN110563906B CN201910753534.4A CN201910753534A CN110563906B CN 110563906 B CN110563906 B CN 110563906B CN 201910753534 A CN201910753534 A CN 201910753534A CN 110563906 B CN110563906 B CN 110563906B
- Authority
- CN
- China
- Prior art keywords
- shape memory
- memory polyurethane
- monomer
- polyol
- polyisocyanate
- 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.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
- C08G18/3275—Hydroxyamines containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
Abstract
The invention provides shape memory polyurethane, which is formed by gradually polymerizing a monomer A, polyisocyanate and polyol, wherein the molar ratio of the monomer A to the polyol is 1: (0-1); polyisocyanate and polyol in terms of isocyanate group moles: the mole number R of hydroxyl is [0.95-1.05 ]; the monomer A is a long-chain branched quaternary ammonium salt substituted polyalcohol. Compared with the prior art, on one hand, the structure and the performance of the shape memory polyurethane are easy to adjust, the mechanical property of the shape memory polyurethane can be adjusted by adjusting the content of the polyol, and the self-repairing performance, the shape memory performance and the like can be adjusted by adjusting the length of the branched chain; on the other hand, the shape memory polyurethane is prepared by a stepwise polymerization method, so that the main chain of the shape memory polyurethane is provided with a long alkane side chain and a large number of carbamate groups, and the obtained shape memory polyurethane has good shape memory performance and self-repairing performance.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to shape memory polyurethane and a preparation method and application thereof.
Background
Shape memory polymers are a class of high molecular intelligent materials different from shape memory alloys in shape memory materials, and are widely concerned and researched due to unique properties of the shape memory polymers. Shape memory polymers are capable of "remembering" their original shape, changing from the original shape to a temporary shape when subjected to certain conditions from the outside, being set in a certain environment, and returning from the temporary shape to the original shape upon exposure to an external stimulus. The polyurethane structure has the advantages of good processability, excellent mechanical properties, certain biocompatibility and the like, and is considered to be one of the most valuable shape memory materials, and the application fields of the polyurethane structure cover biomaterials, drug release, drivers, sensors, aerospace, textiles and the like.
The existing shape memory polymer inevitably has cracks and scratches in the repeated deformation and recovery process, which greatly influences the use of materials, shortens the service life of the materials, and hides huge hazards in the dark, so that the materials with the automatic repair function gradually enter the visual field of people, and become a current research hotspot. The self-repairing high polymer material can automatically repair the cracks caused by the outside, so that the cracks are basically healed, the service life of the material is prolonged, and the use safety of the material is ensured.
Most of the current self-repairing shape memory polymers are materials designed and manufactured based on supermolecular interaction, and the preparation method is complex; self-healing materials formed based in part on ionic bonding are susceptible to environmental influences. Therefore, there is a need to develop a new type of shape memory material that is highly efficient and self-healing.
Disclosure of Invention
The invention aims to provide shape memory polyurethane and a preparation method thereof, and aims to solve the technical problem that the service life of the existing shape memory polyurethane is short due to the self-repairing capability.
In order to solve the technical problems, the invention provides a shape memory polyurethane which is formed by gradually polymerizing a monomer A, polyisocyanate and polyol, wherein the molar ratio of the monomer A to the polyol is 1: (0-1) that the content of polyol is not zero and the left side is open, the polyisocyanate and the polyol are arranged according to the molar number of isocyanate groups: the molar number of hydroxyl groups 1 is 0.95-1.05, and the chemical formula of the monomer A is
Wherein R is1Is of the general formula-CnHm，n＝1～18，m≤2n+1；R2、R3Is of the general formula-CxH2x，x＝1～5；R4Is of the general formula-CyH2y+1，y≥12。
Preferably, the substituent R1Wherein the parameter n is 1 or 18, the substituent R1The parameter m in (1) is 3 or 37; substituent R2、R3The parameter x in (1) or (2); substituent R4The parameter y in (1) is 16, 18 or 22.
Preferably, the polyisocyanate comprises at least one of hexamethylene diisocyanate, diphenylmethane diisocyanate, isophorone diisocyanate.
Preferably, the polyol has a hydroxyl number of 2 or more.
Further preferably, the polyol comprises at least one of 1, 4-butanediol, ethylene glycol, triethylene glycol, tetraethylene glycol.
The invention also provides a preparation method of the shape memory polyurethane, which comprises the following steps:
preparing a monomer A and polyisocyanate according to a proportion, adding an organic solvent, adding a catalyst, and heating for reaction;
adding the polyol in the proportion of claim 1, and reacting to obtain the shape memory polyurethane solution.
Preferably, the catalyst is an organotin-based catalyst.
Preferably, the heating reaction is carried out at 80 ℃ for 1.5 hours.
Preferably, the mass fraction of the monomer a and the polyisocyanate in the organic solvent is 10%.
The invention also provides the application of the shape memory polyurethane in the fields of medical treatment, electronic devices, aerospace and engineering.
Compared with the prior art, on one hand, the shape memory polyurethane disclosed by the invention is composed of a single polymer, so that the shape memory polyurethane has good integrity and performance uniformity, and can not cause tearing due to local nonuniformity; on the other hand, the shape memory polyurethane is prepared by a stepwise polymerization method, so that the main chain of the shape memory polyurethane is provided with a long alkane side chain and a large number of carbamate groups, and the obtained shape memory polyurethane has good shape memory performance and self-repairing performance.
The preparation method of the shape memory polyurethane has the advantages of mild conditions, simple operation, easily obtained raw materials and high yield, and the prepared shape memory polyurethane has good shape memory performance and self-repairing performance. Therefore, the method is suitable for large-scale popularization and industrial application.
Drawings
FIG. 1 is a schematic view of the molecular structure of a shape memory polyurethane according to an embodiment of the present invention;
FIG. 2 is a shape memory curve of the shape memory polyurethane according to an embodiment of the present invention;
FIG. 3 is a graph illustrating the microscopic self-healing performance of a shape memory polyurethane according to an embodiment of the present invention;
FIG. 4 is a graph illustrating the macroscopic self-healing performance of the shape memory polyurethane according to an embodiment of the present invention;
fig. 5 is a shape memory object diagram of the shape memory polyurethane according to an embodiment of the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In one aspect, the embodiment of the present invention provides a shape memory polyurethane, which is prepared by gradually polymerizing a monomer a, a polyisocyanate, and a polyol, wherein the molar ratio of the monomer C to the polyol is 1: (0-1); polyisocyanate and polyol in terms of isocyanate group moles: the mole number of the hydroxyl is 1, which is 0.95-1.05; the chemical formula of the monomer A is
The shape memory polyurethane is prepared by reacting polyesterol serving as a raw material with diisocyanate to prepare a high molecular weight polyurethane prepolymer, so that the shape memory composite resin can be endowed with good crystallization property, and quick cooling and good fixing property are realized. And a plurality of active sites, polyol and isocyanate form a cross-linked network, so that the shape memory composite resin has the advantages of good crystallization property, good physical cross-linking property, more uniform texture, good fixing property and the like.
Wherein R is1Is of the general formula-CnHm，n＝1～18，m≤2n+1；R2、R3Is of the general formula-CxH2x，x＝1～5；R4Is of the general formula-CyH2y+1，y≥12。
In particular in a preferred embodiment, the substituent R1Wherein the parameter n is 1 or 18, the substituent R1The parameter m in (1) is 3 or 37; r1The difficulty of synthesizing the monomer A is reduced when a short carbon chain is selected, and simultaneously the corresponding R4Longer carbon chains are selected to ensure the performance. R1The reactivity decreases when long carbon chains are chosen, but R is4The choice becomes large. More specific application scenes are reasonably adjusted. Substituent R2、R3The parameter x in (1) or (2); shorter chains are preferred to ensure higher reactivity of the alcohol. Substituent R4The parameter y in (1) is 16, 18 or 22. The longer carbon chain is selected to ensure the shape memory function and self-repairing performance of the shape memory polyurethane.
Specifically, in a preferred embodiment, the polyisocyanate comprises at least one of hexamethylene diisocyanate, diphenylmethane diisocyanate, and isophorone diisocyanate. The diisocyanate has good stability and strong reaction activity.
Specifically, in a preferred embodiment, the polyol has a hydroxyl number of 2 or more. In a specific further embodiment, the polyol comprises at least one of 1, 4-butanediol, ethylene glycol, triethylene glycol, tetraethylene glycol. The small molecular alcohols are selected to have low melting point and good compatibility on one hand, and short carbon chains and high reactivity on the other hand, provide crystallization nuclei, promote the high molecular weight polyester alcohol phase in polyurethane to quickly form crystalline phases, and promote the 4D printing wire to quickly fix a temporary shape.
In conclusion, the shape memory polyurethane of the present invention, on the one hand, adopts polyesterol as a raw material to react with diisocyanate to prepare a high molecular weight polyurethane prepolymer, and can endow the shape memory composite resin with good crystallization property, thereby realizing rapid cooling and good fixing property. And a plurality of active sites, polyol and isocyanate form a cross-linked network, so that the shape memory composite resin has the advantages of good crystallization property, good physical cross-linking property, more uniform texture, good fixing property and the like. In addition, a plurality of long-chain branched structures are adopted, so that branched chains of the shape memory polyurethane are entangled with each other under a mild condition, and finally, the self-repairing effect is achieved by means of the strong interaction of active groups. In addition, the performance of the shape memory polyurethane can be adjusted by preferably selecting a substitution group, an auxiliary agent and a catalyst so as to adapt to different application scenes. The specific repair process is heating at 80 ℃ for several hours, and the healing of the gap between the two can be obviously observed. And it also has good shape memory properties. The specific operation is that the temperature of the polymer material with a certain shape is raised to the reshaping temperature, the polymer material can be shaped at will through external force, including folding, twisting, compressing and the like, and the constant temperature and the external force are kept for more than 30 min; after cooling, the reshaped shape of the mold is obtained. When the material is heated again, the remolded shape does not change under the action of no external force. When the temperature is raised to be higher than the glass transition temperature and is lower than the reshaping temperature, the reshaped shape can be deformed under the action of external force to obtain another temporary shape, and the temporary shape can be fixed by cooling to the room temperature; when heated again above the glass transition temperature, the temporary shape reverts to the reshaped shape.
The invention also provides a preparation method of the shape memory polyurethane, which comprises the following steps:
s01: preparing a monomer A and polyisocyanate according to a proportion, adding an organic solvent, adding a catalyst, and heating for reaction;
s02: adding polyhydric alcohol in proportion, and reacting to obtain the shape memory polyurethane solution.
Specifically, the monomer A in the step S01 is obtained by quaternizing the monomer B and monobromo saturated alkane. The structural formula of the monomer B is
Wherein the substituents are defined as monomer A and the monobromo saturated alkane is R4-Br。
In step S01, the organic solvent is at least one of N, N-dimethylformamide, N-dimethylacetamide, or dimethylsulfoxide.
In the specific step S01, the catalyst is an organotin catalyst. Such catalysts are the usual polyurethane catalysts.
In the specific step S01, the heating reaction is performed at 80 ℃ for 1.5 hours. The reaction condition is selected through a plurality of experiments, so that the reaction speed is moderate and the polymerization reaction is controllable.
Specifically, in step S01, the mass fraction of the monomer a and the polyisocyanate in the organic solvent is 10%. When the reaction concentration is large, the reaction self-acceleration is liable to be finally uncontrollable, and when the reaction concentration is too low, the reaction speed is too slow and the degree of polymerization is insufficient, so that an appropriate concentration is important.
Specifically, in step S02, the reaction is carried out under the reaction conditions that the original system temperature is maintained for 2 hours.
Specifically, in step S02, the shape memory polyurethane can be obtained by removing the organic solvent after the reaction is completed.
The invention also provides the application of the shape memory polyurethane in the fields of medical treatment, electronic devices, aerospace and engineering. The shape memory polyurethane provided by the invention has good shape memory performance and self-repairing performance, is plastic and has low density, so that the shape memory polyurethane is very suitable for the aerospace field. Polyurethanes also possess biocompatibility coupled with their shape memory and self-healing properties and are therefore used in medical devices. The self-repairing performance and the shape memory performance of the material can be applied to the fields of electronic devices and engineering, and the durability of the material is ensured by self-repairing. Such as foldable materials, with which rapid ageing of the material after multiple folding can be avoided.
The following describes the shape memory polyurethane according to the present invention with reference to the following embodiments and drawings.
Example 1
This example provides the shape memory polyurethane, prepared as follows:
firstly, adding 11.9g N-methyldiethanolamine and 30.5g of bromohexadecane into a three-neck flask, raising the temperature to 100 ℃, mechanically stirring for 12 hours to obtain a white solid, dissolving the product into 50ml of absolute ethyl alcohol, slowly adding the solution into 500ml of ethyl acetate solution to obtain a white precipitate, washing and centrifuging for 3 times, and drying in an air-blast drying oven at 80 ℃ to obtain the pure quaternized monomer. In a second step, 16.8g of Hexamethylene Diisocyanate (HDI), 42.4g of quaternized monomer and 0.02 wt.% of catalyst dibutyltin dilaurate (DBTDL)40ml of DMF were added in succession to a three-necked flask under nitrogen protection. The reaction temperature was raised to 80 ℃ and reacted for 1h, followed by addition of 5.2g of 1, 4-Butanediol (BDO) and 9.6g of Hexamethylene Diisocyanate (HDI) and further reaction for 4 h. Finally, the viscosity of the polyurethane prepolymer solution is adjusted to be about 10 wt%. Pouring the prepared polyurethane/DMF solution into a film, drying the film in a forced air oven at 80 ℃ for 24 hours, and then drying the film in vacuum at 80 ℃ for 24 hours to obtain the shape memory polyurethane film.
The molecular structure of the prepared shape memory polyurethane is shown in figure 1. NMR showed the presence of a chemical shift band at 3.08ppm attributable to the proton signal of-N-CH 2-. The successful preparation of quaternized monomers was demonstrated. The infrared spectrum has strong absorption peaks centered at 3311 and 1683cm-1, which are attributed to the N-H and C ═ O bonds, respectively, indicating successful polymerization of the polyurethane. The shape memory curve is shown in fig. 2, and the shape fixing rate and the shape recovery rate of the polyurethane are higher than 85% and 90%. The results confirmed that the shape-memory polyurethane had excellent shape fixation and good shape recovery.
Example 2
This example provides the shape memory polyurethane, prepared as follows:
firstly, adding 11.9g N-methyldiethanolamine and 38.9g bromodocosane into a three-neck flask, raising the temperature to 100 ℃, mechanically stirring for 12 hours to obtain a white solid, dissolving the product into 50ml absolute ethyl alcohol, slowly adding the solution into 500ml ethyl acetate solution to obtain a white precipitate, washing and centrifuging for 3 times, and drying in an air-blast drying oven at 80 ℃ to obtain the pure quaternized monomer. In a second step, 16.8g of Hexamethylene Diisocyanate (HDI), 50.8g of quaternized monomer and 0.02 wt.% of catalyst dibutyltin dilaurate (DBTDL)40ml of DMF were added in succession to a three-necked flask under nitrogen protection. The reaction temperature is raised to 80 ℃ and the reaction is carried out for 4 h. Finally, the viscosity of the polyurethane prepolymer solution is adjusted to be about 10 wt%. Pouring the prepared polyurethane/DMF solution into a film, drying the film for 24 hours in a forced air oven at 80 ℃, and then drying the film for 24 hours in vacuum at 80 ℃ to obtain the self-repairing shape memory polyurethane film.
Fig. 3 is a microscopic self-repairing performance diagram of the present embodiment, and it can be known from the diagram that the crack of the material can be completely repaired within 6 hours at 80 ℃, which proves that the material has excellent self-repairing performance.
Example 3
This example provides the shape memory polyurethane, prepared as follows:
firstly, adding 11.9g N-methyldiethanolamine and 38.9g bromodocosane into a three-neck flask, raising the temperature to 100 ℃, mechanically stirring for 12 hours to obtain a white solid, dissolving the product into 50ml absolute ethyl alcohol, slowly adding the solution into 500ml ethyl acetate solution to obtain a white precipitate, washing and centrifuging for 3 times, and drying in an air-blast drying oven at 80 ℃ to obtain the pure quaternized monomer. In a second step, 16.8g of Hexamethylene Diisocyanate (HDI), 42.4g of quaternized monomer and 0.02 wt.% of catalyst dibutyltin dilaurate (DBTDL)40ml of DMF were added in succession to a three-necked flask under nitrogen protection. The reaction temperature was raised to 80 ℃ and the reaction was carried out for 1h, followed by addition of 24.1g of tetraethylene glycol (TEGY) and 20.9g of Hexamethylene Diisocyanate (HDI) and further 4 h. Finally, the viscosity of the polyurethane prepolymer solution is adjusted to be about 10 wt%. Pouring the prepared polyurethane/DMF solution into a film, drying the film in a forced air oven at 80 ℃ for 24 hours, and then drying the film in vacuum at 80 ℃ for 24 hours to obtain the shape memory polyurethane film.
FIG. 4 is a graph of the macroscopic self-repairing performance of the present embodiment, and the material does not break when elongated to 3 times at 80 ℃ within 8 h. FIG. 5 is a diagram of the shape memory material of the present embodiment, wherein the material can completely return to the original shape from the temporary shape at 80 ℃, which shows that the material has good self-repairing performance and shape memory performance.
Claims (7)
1. A shape memory polyurethane characterized by: the polyurethane adhesive is prepared by gradually polymerizing a monomer A, polyisocyanate and polyol, wherein the molar ratio of the monomer A to the polyol is 1: (0-1), the molar ratio of polyisocyanate to monomer A to polyol is as follows: hydroxyl mole number is 1: 0.95-1.05 configuration; the chemical formula of the monomer A is
Wherein R is1Is of the general formula-CnHm，n＝1，m ≤ 2n+1；R2、R3Is of the general formula-CxH2x，x=1~5；R4Is of the general formula-CyH2y+1，y≥12；
The polyhydric alcohol is at least one of 1, 4-butanediol, ethylene glycol, triethylene glycol and tetraethylene glycol.
2. A shape memory polyurethane according to claim 1 wherein: substituent R1Wherein the parameter n is 1 and the substituent R1The parameter m in (1) is 3; substituent R2、R3The parameter x in (1) or (2); substituent R4The parameter y in (1) is 16, 18 or 22.
3. A shape memory polyurethane according to claim 1 wherein: the polyisocyanate comprises at least one of hexamethylene diisocyanate, diphenylmethane diisocyanate and isophorone diisocyanate.
4. A process for the preparation of a shape memory polyurethane according to any of claims 1 to 3, comprising the steps of:
preparing a monomer A and polyisocyanate according to a proportion, adding an organic solvent, adding a catalyst, and carrying out heating reaction, wherein the mass fraction of the monomer A and the polyisocyanate in the organic solvent is 10%;
adding polyhydric alcohol in proportion, and reacting to obtain the shape memory polyurethane solution.
5. The method of preparing a shape memory polyurethane according to claim 4, wherein: the catalyst is an organic tin catalyst.
6. The method of preparing a shape memory polyurethane according to claim 5, wherein: the heating reaction condition is that the reaction is carried out at 80 ℃ for 1.5 hours.
7. Use of the shape memory polyurethane according to any one of claims 1 to 3 in the fields of medical, electronic, aerospace engineering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910753534.4A CN110563906B (en) | 2019-08-15 | 2019-08-15 | Shape memory polyurethane and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910753534.4A CN110563906B (en) | 2019-08-15 | 2019-08-15 | Shape memory polyurethane and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110563906A CN110563906A (en) | 2019-12-13 |
| CN110563906B true CN110563906B (en) | 2021-11-16 |
Family
ID=68775497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910753534.4A Active CN110563906B (en) | 2019-08-15 | 2019-08-15 | Shape memory polyurethane and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110563906B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022151019A1 (en) * | 2021-01-13 | 2022-07-21 | 深圳大学 | Liquid crystal polyurethane, liquid crystal polyurethane thin film, and preparation method therefor |
| CN114213614A (en) * | 2021-12-27 | 2022-03-22 | 江南大学 | Preparation method and application of photocuring polyurethane with self-healing property and shape memory property |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768884A (en) * | 2010-01-13 | 2010-07-07 | 西安工程大学 | Multi-quaternary ammonium group cation type polyurethane color fixing agent and preparation method thereof |
| CN103160948A (en) * | 2013-04-07 | 2013-06-19 | 苏州聚复高分子材料有限公司 | Rapid prototyping shape memory high polymer material and preparation method and application thereof |
| CN103382157A (en) * | 2013-08-13 | 2013-11-06 | 佛山市日丰企业有限公司 | Process for preparing hexadecyl methyl 2-hydroxyethyl ammonium bromide |
| CN104403086A (en) * | 2014-12-02 | 2015-03-11 | 深圳大学 | Amphoteric ionic type shape memory polyurethane and preparation method thereof |
| WO2016172831A1 (en) * | 2015-04-28 | 2016-11-03 | 深圳大学 | Shape memory polymer, preparation method therefor and application thereof |
| CN106633811A (en) * | 2016-10-28 | 2017-05-10 | 深圳大学 | Shape memory plastic paper and preparation method and application thereof |
| CN107163211A (en) * | 2017-07-05 | 2017-09-15 | 深圳大学 | A kind of preparation method of shape memory polyurethane |
| CN107964085A (en) * | 2016-10-19 | 2018-04-27 | 黑龙江鑫达企业集团有限公司 | A kind of multi-block polyurethane shape memory high molecule material and preparation method thereof |
| CN108084394A (en) * | 2017-12-25 | 2018-05-29 | 青岛科技大学 | A kind of shape memory hard polyurethane foam medical splint material and preparation method thereof |
| WO2018106775A1 (en) * | 2016-12-06 | 2018-06-14 | The Texas A&M University System | Antimicrobial shape memory polymers |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8318889B2 (en) * | 2007-08-17 | 2012-11-27 | Chung Shan Institute Of Science And Technology, Armaments Bureau, M.N.D. | Organic polyurethane shape memory material and a preparation method thereof |
-
2019
- 2019-08-15 CN CN201910753534.4A patent/CN110563906B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768884A (en) * | 2010-01-13 | 2010-07-07 | 西安工程大学 | Multi-quaternary ammonium group cation type polyurethane color fixing agent and preparation method thereof |
| CN103160948A (en) * | 2013-04-07 | 2013-06-19 | 苏州聚复高分子材料有限公司 | Rapid prototyping shape memory high polymer material and preparation method and application thereof |
| CN103382157A (en) * | 2013-08-13 | 2013-11-06 | 佛山市日丰企业有限公司 | Process for preparing hexadecyl methyl 2-hydroxyethyl ammonium bromide |
| CN104403086A (en) * | 2014-12-02 | 2015-03-11 | 深圳大学 | Amphoteric ionic type shape memory polyurethane and preparation method thereof |
| WO2016172831A1 (en) * | 2015-04-28 | 2016-11-03 | 深圳大学 | Shape memory polymer, preparation method therefor and application thereof |
| CN107964085A (en) * | 2016-10-19 | 2018-04-27 | 黑龙江鑫达企业集团有限公司 | A kind of multi-block polyurethane shape memory high molecule material and preparation method thereof |
| CN106633811A (en) * | 2016-10-28 | 2017-05-10 | 深圳大学 | Shape memory plastic paper and preparation method and application thereof |
| WO2018106775A1 (en) * | 2016-12-06 | 2018-06-14 | The Texas A&M University System | Antimicrobial shape memory polymers |
| CN107163211A (en) * | 2017-07-05 | 2017-09-15 | 深圳大学 | A kind of preparation method of shape memory polyurethane |
| CN108084394A (en) * | 2017-12-25 | 2018-05-29 | 青岛科技大学 | A kind of shape memory hard polyurethane foam medical splint material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| The journey of self-healing and shape memory polyurethanes from bench to translational research;Menon Aishwarya V，等;《POLYMER CHEMISTRY》;20190709;第10卷(第32期);第4370-4388页 * |
| 两性离子形状记忆聚氨酯的制备与表征;梅占奎，等;《2016年全国高分子材料科学与工程研讨会论文摘要集》;20161130;第169页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110563906A (en) | 2019-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110790888A (en) | High-strength room-temperature self-repairing polyurethane elastomer based on multiple dynamic reversible effects and preparation and application thereof | |
| CN110591542A (en) | Disulfide bond and hydrogen bond containing dual self-repairing polyurethane coating for invisible car cover and preparation method thereof | |
| CN110563906B (en) | Shape memory polyurethane and preparation method and application thereof | |
| CN112300356B (en) | Bio-based polyurethane with photo-thermal dual-repair function and preparation method thereof | |
| CN108503783B (en) | Thermoplastic polyurethane elastomer and preparation method thereof | |
| CN110483699B (en) | Multi-responsiveness shape memory polyurethane acrylate copolymer and preparation method thereof | |
| CN108264623B (en) | Polyester type polyurethane shape memory material and preparation method thereof | |
| CN110845692B (en) | High-hardness thermosetting self-repairing polyurethane and preparation method thereof | |
| CN113214450A (en) | Wear-resistant self-repairing type polyurethane composite coating agent based on shape memory and preparation method thereof | |
| CN107337780A (en) | A kind of preparation method for the shape memory elastic body that light heat double-bang firecracker is answered | |
| CN113831498A (en) | Wear-resistant self-repairing waterborne polyurethane based on quadruple hydrogen bonds and aromatic disulfide bonds and preparation method thereof | |
| CN114133503A (en) | High-temperature yellowing-resistant nonionic waterborne polyurethane and preparation method thereof | |
| CN110982037B (en) | Body temperature response shape memory polyurethane material and preparation method thereof | |
| CN112778481B (en) | Multiple shape memory polymer and preparation method thereof | |
| CN113896854B (en) | Castor oil-based shape memory polymer and preparation method thereof | |
| CN110591036A (en) | Shape memory polymer and preparation method and application thereof | |
| CN114874410B (en) | Photoinitiated self-repairing shape memory polyurethane and preparation method and application thereof | |
| CN115785383B (en) | Preparation method of self-repairing polyurethane containing DA bond and acylhydrazone bond through double crosslinking | |
| CN112759737B (en) | Triple shape memory polymer and preparation method thereof | |
| CN111154070A (en) | Fluorine-containing polyurethane and preparation method thereof | |
| CN111040419A (en) | Bio-based polyester type polyurethane film and preparation method thereof | |
| CN114479120B (en) | Acrylic ester modified polyurethane adhesive hydrogel material and preparation method thereof | |
| CN109912773A (en) | A kind of shape memory polyurethane and preparation method thereof | |
| CN111234187B (en) | Shape memory polyether ester and preparation method and application thereof | |
| CN113248741B (en) | Preparation method of cross-linked shape memory polyurethane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |