CN106867041A - A kind of shitosan g aliphatic acid phase-change materials and its preparation method and application - Google Patents
A kind of shitosan g aliphatic acid phase-change materials and its preparation method and application Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
- C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
- C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof
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Abstract
The invention discloses a kind of shitosan g aliphatic acid phase-change materials and its preparation method and application, preparation method is comprised the following steps：Dissolve chitosan in acetic acid aqueous solution, then separated out in the coagulating bath of high speed shear, the shitosan pre-processed through ultramicronising is obtained；Anatase-type nanometer titanium dioxide is dispersed in the fused solution of aliphatic acid by ul-trasonic irradiation, the shitosan pre-processed by ultramicronising is added thereto, reacted 1 hour under conditions of vacuumizing, shitosan g aliphatic acid phase-change materials are obtained with washes of absolute alcohol.Can promote crystallization exotherm of the shitosan g aliphatic acid in temperature-fall period anatase-type nanometer titanium dioxide is added during preparing phase-change material.Synthetic method green cleaning of the present invention, non-environmental-pollution, serial graft polymers is nontoxic to human body and Environmental security, biodegradable, is had a good application prospect in fields such as heat-accumulation temperature-adjustment textile, suit, diving dress, advanced motion clothes.
Description
Technical field
The present invention relates to a kind of shitosan-g- aliphatic acid phase-change materials and its preparation method and application, belong to material science
Field.
Background technology
Phase-change material mainly has solid-liquid, the big type of solid-solid two, main point again of solid-solid phase transition material by phase transformation mode point
It is inorganic salts, polyalcohols and high score subclass, macromolecule solid-solid phase transition material has long service life, stable performance, without mistake
Cold and chromatography phenomenon, material mechanical performance is good, be easy to the advantages of processing.
Shitosan is that chitin carries out deacetylated product resulting afterwards, chitin nature growing amount annual on the earth
Up to 10,000,000,000 tons, it is only second to cellulose in the reserves of nature, shitosan have good biocompatibility and can biology drop
Xie Xing, its derivative has good development prospect.
It is that the end of the chain of crystallinity molecule long-chain is grafted on by chemical reaction that grafting copolymerization process prepares solid-solid phase transition material
Another fusing point is big compared with high, intensity, on constitutionally stable skeleton macromolecule, in thermal histories, when the crystallinity point of low melting point
When sub- side chain occurs the phase in version from crystalline state to amorphous state, because molecular backbone is not yet melted, low melting point molecule is limited
Macroscopic view flowing, keep the integrated solid state of material, and so as to realize solid-state phase changes energy storage purpose, but prepared by grafting copolymerization process
Solid-solid phase transition material often occurs serious crystallization surfusion, i.e. crystallizable side chain in temperature-fall period and is limited, in temperature-fall period
In can not smooth crystallization exotherm, so as to limit its application value as phase-change material.
The content of the invention
To solve the above problems, promote crystallization exotherm of the shitosan-g- aliphatic acid phase-change materials in temperature-fall period, this hair
It is bright that a kind of preparation method of shitosan-g- aliphatic acid phase-change materials is provided, prepared shitosan-g- aliphatic acid phase-change material is prepared
During, anatase-type nanometer titanium dioxide is added in fatty acid mono, after graft reaction, prepared shitosan-g- fat
Contain nano titanium dioxide crystal particle in fat acid phase-change material, for crystallizable side chain provides nucleus, so as to promote shitosan-g- fat
Fat acid phase-change material crystallization exotherm, effectively prevent the crystallization surfusion of shitosan-g- aliphatic acid phase-change materials.
The present invention provides a kind of preparation method of shitosan-g- aliphatic acid phase-change materials：In shitosan-g- aliphatic acid phase transformations
Anatase-type nanometer titanium dioxide is added in material preparation process.
Further, in the above-mentioned technical solutions, the shitosan-g- aliphatic acid phase-change material passes through graft reaction system
Standby, preparation process is that first anatase-type nanometer titanium dioxide is dispersed in aliphatic acid fused solution under ul-trasonic irradiation, then
The shitosan that ultramicronising is pre-processed is carried out into graft polymerization reaction, prepared shitosan-g- aliphatic acid in above-mentioned fused solution
Contain micro anatase-type nanometer titanium dioxide in phase-change material, the crystallization exotherm of the solid-solid phase transition material can be promoted.
The preparation method of the shitosan-g- aliphatic acid phase-change materials comprises the following steps,
Step one：Dissolve chitosan in the acetic acid aqueous solution that mass percent concentration is 3%, be configured to quality percentage
Specific concentration is 1.5~3% chitosan solution；
Step 2：It is that 50%, NaOH mass percent concentrations are 5%, distillation water quality by ethanol mass percent concentration
Percentage is 45% proportions coagulating bath；
Step 3：The coagulating bath obtained to step 2 carries out 4000~5000 revs/min of high speed shear, while will be by step
Rapid one chitosan solution for obtaining is added thereto, and high speed shear stops after 5~10 minutes, by the above-mentioned coagulating bath containing shitosan
Load centrifuge tube, carry out 5000~10000 revs/min of 10~20 minutes high speed centrifugations, collect the chitosan solid for separating out；
Step 4：The shitosan pre-processed through ultramicronising obtained by step 3 is fully cleaned with absolute ethyl alcohol；
Step 5：The anatase-type nanometer titanium dioxide that mass percent is 0.01~0.1% is passed through into ul-trasonic irradiation
It is dispersed in the fused solution of aliphatic acid；
Step 6：The shitosan obtained by step 4 is added in the aliphatic acid fused solution obtained by step 5,
10 are less than in pressure3The lower 105 DEG C of stirring reactions of vacuum condition of Pa 1 hour, are then filled with absolute ethyl alcohol to graft product
Distinguish and wash.
Further, in the above-mentioned technical solutions, the aliphatic acid includes certain herbaceous plants with big flowers acid, laurate, stearic acid, octanoic acid, Pork and beans
Cool acid, palmitic acid.
Shitosan-g- aliphatic acid the phase-change materials obtained the present invention additionally provides a kind of above-mentioned preparation method are in heat-accumulation temperature-adjustment
Application in fiber, body tissue rebulding material and field of compound material.
Invention beneficial effect
The invention provides a kind of shitosan-g- aliphatic acid synthetic routes of green cleaning, prepared shitosan-g- fat
There is fat acid phase-change material solid-solid phase-change characteristic, phase transition temperature can be adjusted by the carbon chain lengths of grafting aliphatic acid, phase alternating temperature
Degree is distributed between 16.8 DEG C to 60 DEG C, and phase transformation heat enthalpy value reaches as high as 74J/g.The anatase-type nanometer titanium dioxide for being added
Crystal grain has facilitation to shitosan-g- aliphatic acid comb-shaped polymer crystallizable side chains, can effectively solve shitosan-g- fat
Crystallizable side chain surfusion of the fat acid series grafting comb-shaped polymer in temperature-fall period.
Shitosan-g- aliphatic acid series graft polymers prepared by the present invention is nontoxic to human body and Environmental security, can give birth to
Thing is degraded, and is had a good application prospect in fields such as heat-accumulation temperature-adjustment textile, suit, diving dress, advanced motion clothes.
Specific embodiment
With reference to following embodiments, the present invention will be further described, and following embodiments limit this hair never in any form
It is bright.It is homogeneous to method of testing and condition of shitosan-g- aliphatic acid comb-shaped polymer performances etc. in following embodiments and comparative example
Together.
Embodiment 1
Step one：Dissolve chitosan in the acetic acid aqueous solution that mass percent concentration is 3%, be configured to quality percentage
Specific concentration is 1.5% chitosan solution；
Step 2：It is that 50%, NaOH mass percent concentrations are 5%, distillation water quality by ethanol mass percent concentration
Percentage is 45% proportions coagulating bath；
Step 3：The coagulating bath obtained to step 2 carries out 4000 revs/min of high speed shear, while will be obtained by step one
To chitosan solution be added thereto, high speed shear stops after 5 minutes, and above-mentioned coagulating bath containing shitosan is loaded into centrifugation
Pipe, carries out 10000 revs/min of 20 minutes high speed centrifugations, collects the chitosan solid for separating out；
Step 4：The shitosan pre-processed through ultramicronising obtained by step 3 is fully cleaned with absolute ethyl alcohol；
Step 5：The anatase-type nanometer titanium dioxide that mass percent is 0.01% is dispersed in by ul-trasonic irradiation
In the fused solution of certain herbaceous plants with big flowers acid；
Step 6：The shitosan obtained by step 4 is added in the certain herbaceous plants with big flowers acid fused solution obtained by step 5,
Pressure is less than 103The lower 105 DEG C of stirring reactions of vacuum condition of Pa 1 hour, are then carried out fully with absolute ethyl alcohol to graft product
Cleaning.
The grafting weight gaining rate that shitosan-g- certain herbaceous plants with big flowers acid comb-shaped polymer is measured after cleaning is 126%, and intensification endotherm peak temperature is
29.6 DEG C, heat enthalpy value is 21J/g, and cooling exothermic peak temperature is 24.3 DEG C, and heat enthalpy value is 18J/g.
Embodiment 2
Step one：Dissolve chitosan in the acetic acid aqueous solution that mass percent concentration is 3%, be configured to quality percentage
Specific concentration is 2% chitosan solution；
Step 2：It is that 50%, NaOH mass percent concentrations are 5%, distillation water quality by ethanol mass percent concentration
Percentage is 45% proportions coagulating bath；
Step 3：The coagulating bath obtained to step 2 carries out 5000 revs/min of high speed shear, while will be obtained by step one
Chitosan solution be added thereto, high speed shear stops after 7 minutes, by containing shitosan coagulating bath load centrifuge tube, carry out
7000 revs/min of 15 minutes high speed centrifugations, collect the chitosan solid for separating out；
Step 4：The shitosan pre-processed through ultramicronising obtained by step 3 is fully cleaned with absolute ethyl alcohol；
Step 5：The anatase-type nanometer titanium dioxide that mass percent is 0.05% is dispersed in by ul-trasonic irradiation
In lauric fused solution；
Step 6：The shitosan obtained by step 4 is added in the laurate fused solution obtained by step 5,
10 are less than in pressure3The lower 105 DEG C of stirring reactions of vacuum condition of Pa 1 hour, are then filled with absolute ethyl alcohol to graft product
Distinguish and wash.
It is 318%, intensification endotherm peak temperature that the grafting weight gaining rate of shitosan-g- laurate comb-shaped polymers is measured after cleaning
It it is 46.7 DEG C, heat enthalpy value is 74J/g, cooling exothermic peak temperature is 40 DEG C, and heat enthalpy value is 61J/g.
Embodiment 3
Step one：Dissolve chitosan in the acetic acid aqueous solution that mass percent concentration is 3%, be configured to quality percentage
Specific concentration is 3% chitosan solution；
Step 2：It is that 50%, NaOH mass percent concentrations are 5%, distillation water quality by ethanol mass percent concentration
Percentage is 45% proportions coagulating bath；
Step 3：The coagulating bath obtained to step 2 carries out 5000 revs/min of high speed shear, while will be obtained by step one
To chitosan solution be added thereto, high speed shear stops after 10 minutes, and above-mentioned coagulating bath containing shitosan is loaded into centrifugation
Pipe, carries out 5000 revs/min of 10 minutes high speed centrifugations, collects the chitosan solid for separating out；
Step 4：The shitosan pre-processed through ultramicronising obtained by step 3 is fully cleaned with absolute ethyl alcohol；
Step 5：The anatase-type nanometer titanium dioxide that mass percent is 0.1% is dispersed in by ul-trasonic irradiation
In stearic fused solution；
Step 6：The shitosan obtained by step 4 is added in the stearic acid fused solution obtained by step 5,
10 are less than in pressure3The lower 105 DEG C of stirring reactions of vacuum condition of Pa 1 hour, are then filled with absolute ethyl alcohol to graft product
Distinguish and wash.
It is 167%, intensification endotherm peak temperature that the grafting weight gaining rate of shitosan-g- stearic acid comb-shaped polymers is measured after cleaning
It it is 61 DEG C, heat enthalpy value is 41J/g, cooling exothermic peak temperature is 56 DEG C, and heat enthalpy value is 34J/g.
Comparative example 1
Then the shitosan obtained by step 4 is added to certain herbaceous plants with big flowers acid molten by step one to step 4 in performing embodiment 1
Melt in liquid, 10 are less than in pressure3The lower 105 DEG C of stirring reactions of vacuum condition of Pa 1 hour, then with absolute ethyl alcohol to graft product
Fully cleaned.The step five in embodiment 1 is only not carried out, connecing for shitosan-g- certain herbaceous plants with big flowers acid comb-shaped polymer is measured after cleaning
Branch rate of body weight gain is 130%, and intensification endotherm peak temperature is 30 DEG C, and heat enthalpy value is 4.5J/g, and cooling exothermic phenomenon is not obvious.
Embodiment 1 compares with the shitosan-g- certain herbaceous plants with big flowers acid comb-shaped polymer performance of comparative example 1, the method for illustrating embodiment 1
The phase transformation heat enthalpy value of shitosan-g- certain herbaceous plants with big flowers acid phase-change material can be improved and promote its crystallization exotherm performance.
Comparative example 2
Then the shitosan obtained by step 4 is added to laurate by step one to step 4 in performing embodiment 2
In fused solution, 10 are less than in pressure3The lower 105 DEG C of stirring reactions of vacuum condition of Pa 1 hour, are then produced with absolute ethyl alcohol to grafting
Thing is fully cleaned.The step five in embodiment 1 is only not carried out, shitosan-g- laurate comb-shaped polymers are measured after cleaning
Grafting weight gaining rate be 357%, intensification endotherm peak temperature be 47 DEG C, heat enthalpy value is 9.7J/g, cooling exothermic phenomenon it is unobvious.
Embodiment 2 compares with the shitosan-g- laurate comb-shaped polymer performances of comparative example 2, illustrates the side of embodiment 2
Method can improve the phase transformation heat enthalpy value of shitosan-g- laurate phase-change materials and promote its crystallization exotherm performance.
Comparative example 3
Then the shitosan obtained by step 4 is added to stearic acid by step one to step 4 in performing embodiment 3
In fused solution, 10 are less than in pressure3The lower 105 DEG C of stirring reactions of vacuum condition of Pa 1 hour, are then produced with absolute ethyl alcohol to grafting
Thing is fully cleaned.The step five in embodiment 1 is only not carried out, shitosan-g- stearic acid comb-shaped polymers are measured after cleaning
Grafting weight gaining rate be 171%, intensification endotherm peak temperature be 61 DEG C, heat enthalpy value is 11J/g, cooling exothermic phenomenon it is unobvious.
Embodiment 3 compares with the shitosan-g- stearic acid comb-shaped polymer performances of comparative example 3, illustrates the side of embodiment 3
Method can improve the phase transformation heat enthalpy value of shitosan-g- stearic acid phase-change materials and promote its crystallization exotherm performance.
Claims (7)
1. a kind of preparation method of shitosan-g- aliphatic acid phase-change materials, it is characterised in that in shitosan-g- aliphatic acid phase transformations
Anatase-type nanometer titanium dioxide is added in material preparation process.
2. the preparation method of shitosan-g- aliphatic acid phase-change materials according to claim 1, it is characterised in that the shell
Glycan-g- aliphatic acid phase-change materials are prepared by graft reaction.
3. the preparation method of shitosan-g- aliphatic acid phase-change materials according to claim 2, it is characterised in that will pass through
The shitosan of ultramicronising pretreatment is less than in the excess fatty acids fused solution containing anatase-type nanometer titanium dioxide in pressure
103The shitosan N- acylation reactions carried out under the vacuum condition of Pa.
4. the preparation method of shitosan-g- aliphatic acid phase-change materials according to claim 1 and 2, it is characterised in that described
Method comprises the following steps,
Step one：Dissolve chitosan in the acetic acid aqueous solution that mass percent concentration is 3%, be configured to mass percent dense
Spend the chitosan solution for 1.5~3%；
Step 2：It is that 50%, NaOH mass percent concentrations are 5%, distillation water quality percentage by ethanol mass percent concentration
Than the proportions coagulating bath for 45%；
Step 3：The coagulating bath obtained to step 2 carries out 4000~5000 revs/min of high speed shear, while will be obtained by step one
To chitosan solution be added thereto, high speed shear stops after 5~10 minutes, by containing shitosan coagulating bath load centrifugation
Pipe, carries out 5000~10000 revs/min of 10~20 minutes high speed centrifugations, collects the chitosan solid for separating out；
Step 4：The shitosan pre-processed through ultramicronising obtained by step 3 is fully cleaned with absolute ethyl alcohol；
Step 5：The anatase-type nanometer titanium dioxide that mass percent is 0.01~0.1% is disperseed by ul-trasonic irradiation
In the fused solution of aliphatic acid；
Step 6：The shitosan obtained by step 4 is added in the aliphatic acid fused solution obtained by step 5, in pressure
Power is less than 103The lower 105 DEG C of stirring reactions of vacuum condition of Pa 1 hour, are then carried out fully clear with absolute ethyl alcohol to graft product
Wash.
5. the preparation method of shitosan-g- aliphatic acid phase-change materials according to claim 4, it is characterised in that the fat
Fat acid includes certain herbaceous plants with big flowers acid, laurate, stearic acid, octanoic acid, myristic acid, palmitic acid.
6. shitosan-g- aliphatic acid the phase-change materials that the preparation method as described in Claims 1 to 5 any one is obtained.
7. shitosan-g- aliphatic acid phase-change material as claimed in claim 6 thermo-regulated fiber, body tissue rebulding material and
Application in field of compound material.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108635284A (en) * | 2018-08-17 | 2018-10-12 | 佛山市森昂生物科技有限公司 | A kind of Temperature Control Type biology base facial mask |
| CN110318160A (en) * | 2019-07-23 | 2019-10-11 | 大连海关技术中心 | A kind of preparation method and application of chitosan derivatives nano fibrous membrane wound dressing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102321453A (en) * | 2011-07-11 | 2012-01-18 | 中国科学院长春应用化学研究所 | Solid-solid phase change material and preparation method thereof |
| CN103992773A (en) * | 2014-05-28 | 2014-08-20 | 北京化工大学常州先进材料研究院 | Bifunctional micro-encapsulation phase-change energy storage material with photo-catalysis property and preparation method thereof |
-
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102321453A (en) * | 2011-07-11 | 2012-01-18 | 中国科学院长春应用化学研究所 | Solid-solid phase change material and preparation method thereof |
| CN103992773A (en) * | 2014-05-28 | 2014-08-20 | 北京化工大学常州先进材料研究院 | Bifunctional micro-encapsulation phase-change energy storage material with photo-catalysis property and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 许思晋等: ""壳聚糖-g-月桂酸梳状聚合物相变材料的制备及表征"", 《大连工业大学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108635284A (en) * | 2018-08-17 | 2018-10-12 | 佛山市森昂生物科技有限公司 | A kind of Temperature Control Type biology base facial mask |
| CN110318160A (en) * | 2019-07-23 | 2019-10-11 | 大连海关技术中心 | A kind of preparation method and application of chitosan derivatives nano fibrous membrane wound dressing |
| CN110318160B (en) * | 2019-07-23 | 2021-11-09 | 大连海关技术中心 | Preparation method and application of chitosan derivative nanofiber membrane wound dressing |
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