CN106478963A - Flaxseed gum/cellulose composite aquogel and preparation method thereof - Google Patents
Flaxseed gum/cellulose composite aquogel and preparation method thereof Download PDFInfo
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- CN106478963A CN106478963A CN201610885375.XA CN201610885375A CN106478963A CN 106478963 A CN106478963 A CN 106478963A CN 201610885375 A CN201610885375 A CN 201610885375A CN 106478963 A CN106478963 A CN 106478963A
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- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/075—Macromolecular gels
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- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/246—Intercrosslinking of at least two polymers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
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- 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
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/02—Cellulose; Modified cellulose
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- 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
- C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
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- 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
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
Abstract
The present invention relates to flaxseed gum/cellulose composite aquogel, it is that the wherein mass ratio of flaxseed gum and cellulose is 1 by concretionary dual network porous aquagel after flaxseed gum solution and cellulose solution mixing crosslinking:1～1:9.Composite aquogel obtained in the present invention has preferable mechanical stability; with the porous network structure that average pore size is 25～38 μm; water holding capacity under the conditions of 40 DEG C reaches 14 days; show good water suction and water retention property; and it is biodegradable under certain humidity, temperature and microorganism existence condition; category environment-friendly material, it is easy to which functionalization is expanded and applied, and can be widely used in the fields such as bio-medical material, environmental protection and water-keeping material.
Description
Technical field
The present invention relates to polymeric material field, and in particular to flaxseed gum/cellulose composite aquogel and its preparation side
Method.
Background technology
Arid is a global problem, arid, the soil erosion of semiarid zone, desertification, soil alkaline
The environmental problems such as change, not only directly affect the production capacity of dry farming system, and have injured ecological safety.Arid is
Become the agricultural problem of most serious in worldwide, therefore, the arviculture for studying arid area is being total to for facing mankind
Same problem.In recent years, for example hydrophilic macromolecular material of super absorbent material is because can play a part of to maintain moisture and chemical fertilizer
Received significant attention with promoting crop growth.
Hydrogel is formed through the physically or chemically crosslinking of appropriateness by the macromolecular material with hydrophilic radical
Plant the functional high molecule material with three-dimensional network loose structure and height swelling behavior.It being capable of sensing external environment stimulation
(such as temperature, pH, ionic strength etc.) sensitivity response can be made, due to its excellent water imbibition, water-retaining property and environmental response
Property, hydrogel shows wide application prospect in fields such as drug delivery system, wastewater treatment, agriculturals.In the past tens
Nian Li, hydrogel are widely used in agricultural the utilization rate for improving water.
With the pay attention to day by day to environmental protection of increasingly depleted and people of fossil resources, with natural macromolecular material
The hydrogel that (such as starch, shitosan, cellulose etc.) is prepared from for raw material can be dropped because of its good biocompatibility and biology
Solution property and extensive source and receive more and more attention, however, these material swelling behaviors are unsatisfactory, it is often necessary to
Raw material is modified being formed correspondingly derivative reaching the purpose of improving performance, such as with cellulose derivative carboxymethyl cellulose
Element and carboxyethyl cellulose etc. are hydrogel prepared by raw material, although hydrogel performance increases, but these be all from original
Expect that modified angle is set out, to realize improving its swelling behavior；While preparation process is complicated, relatively costly.
And flaxseed gum limits which as the application of excellent water-keeping material due to showing Weak Gels.
Content of the invention
The technical problem to be solved is to provide a kind of linseed for the deficiency of above-mentioned prior art presence
Glue/cellulose composite aquogel and preparation method thereof, gained composite aquogel has good mechanical stability, water suction and water conservation
Performance.
The present invention by solving the problems, such as the technical scheme for adopting set forth above is：
Flaxseed gum/cellulose composite aquogel, its are to be mixed after crosslinking to coagulate by flaxseed gum solution and cellulose solution
Admittedly hydrogel, with the porous network structure that average pore size is 25～38 μm, the wherein matter of flaxseed gum and cellulose
Amount is 1 than being preferably:1～1:9.
By such scheme, the viscosity average molecular weigh of the cellulose is 30,000～370,000 dalton.
By such scheme, the mixing crosslinking is carried out in the solution.
By such scheme, the crosslinking adopts epoxychloropropane as crosslinking agent, often 100g flaxseed gum solution and fiber
Add 0.5～5mL epoxychloropropane in the mixed solution of plain solution.
The preparation method of above-mentioned flaxseed gum/cellulose composite aquogel, key step are as follows：
1) flaxseed gum solution and cellulose solution are prepared respectively, is placed in 1～7 DEG C of condition storage；
2) mass ratio for pressing flaxseed gum and cellulose is 1:1～1:9, by step 1) gained flaxseed gum solution and fiber
Plain solution is mixed, and being subsequently adding epoxychloropropane carries out cross-linking reaction, obtains flaxseed gum/cellulose composite cross-linked polymer molten
Liquid；
3) by step 2) gained flaxseed gum/cellulose composite cross-linked polymer solution pours in mould and solidified, that is, obtain
Flaxseed gum/cellulose composite aquogel.
By such scheme, the flaxseed gum weight/mass percentage composition in the flaxseed gum solution is 0.5～4wt.%；Described
In cellulose solution, the weight/mass percentage composition of cellulose is 1～5wt.%.
By such scheme, the step 2) in, per 100g flaxseed gum solution and in the mixed solution of cellulose solution, ring
The addition of oxygen chloropropane is 0.5～5mL.
By such scheme, the step 2) in, the time of cross-linking reaction is 10～120min.
By such scheme, the step 2) in, the step of also include evacuation and centrifugal degassing removal of impurities after cross-linking reaction.
By such scheme, the step 3) in, setting temperature is 4～60 DEG C, and setting time is 0.5～12h.
By such scheme, the flaxseed gum and cellulose are dissolved into the mixed aqueous solution of urea and alkali.Wherein, the urine
In the mixed aqueous solution of element and alkali, alkali is NaOH and lithium hydroxide etc..Preferably, the mixed aqueous solution of urea and alkali is
The aqueous solution containing 6～10wt.%NaOH and 2～20wt.% urea；Or the aqueous solution be containing 4～9wt.%LiOH and 4～
The aqueous solution of 30wt.%.
It is further preferred that the compound method of the flaxseed gum solution is：Flaxseed gum is added to urea and alkali
In mixed aqueous solution, stirring and dissolving at 20～25 DEG C, evacuation and centrifugal degassing, removal of impurities are obtained flaxseed gum solution.Wherein, centrifugation is adopted
Rotating speed is 6000～7500rpm, and the time is 10～20min.Most preferably, NaOH in the mixed aqueous solution of urea and alkali
Concentration is 7wt.%, and the concentration of urea is 12wt.%；Or, in the mixed aqueous solution of urea and alkali, the concentration of lithium hydroxide is
9wt.%, the concentration of urea is 12wt.%.
It is further preferred that the compound method of the cellulose solution is：The mixed aqueous solution of urea and alkali is cooled in advance-
5～-20 DEG C, cellulose stirring and dissolving is subsequently adding, evacuation and centrifugal degassing, removal of impurities are obtained cellulose solution.Wherein, centrifugation adopts rotating speed
For 6000～7500rpm, the time is 10～20min.Most preferably, in the mixed aqueous solution of urea and alkali NaOH concentration
For 7wt.%, the concentration of urea is 12wt.%；Or, in the mixed aqueous solution of urea and alkali, the concentration of lithium hydroxide is
9wt.%, the concentration of urea is 12wt.%.
Compared with prior art, the invention has the beneficial effects as follows：
(1) it is raw material to select natural polymer flaxseed gum and cellulose in selection of the present invention, in combination with flaxseed gum
Super water-absorbent can and cellulose high intensity network structure, it is to avoid to material modification, obtained flaxseed gum/cellulose is multiple
Heshui gel has good mechanical stability, good water suction and water retention property；Meanwhile, instant invention overcomes flaxseed gum by
In its Weak Gels, so as to limit which as the limitation of excellent water-keeping material application；
(2) preparation method of the present invention is using green solvent dissolving flaxseed gum and cellulose and anti-by simple crosslinking
Flaxseed gum/cellulose composite aquogel should be prepared, preparation process is simple, the easy recycling use of waste liquid, does not result in ring
Border is polluted；
(3) the raw materials used wide material sources of the present invention, cheap, biodegradable, environmentally friendly, it is easy to which functionalization is opened up
Exhibition and application, can be widely used in the fields such as bio-medical material, environmental protection and water-keeping material.
Description of the drawings
In Fig. 1, grand before and after a, c respectively 1 gained flaxseed gum of embodiment/cellulose composite aquogel is swelling in water
Shape appearance figure is seen, the macro morphology figure before and after b, d respectively 5 gained cellulose aquagel of embodiment is swelling in water；
Fig. 2 is embodiment 2 and the scanning electricity after the flaxseed gum obtained by embodiment 5/cellulose composite aquogel water suction
Mirror figure；
In Fig. 3, a, b, c are respectively the flaxseed gum/cellulose Compound Water obtained by embodiment 1, embodiment 3, embodiment 5
Equilibrium swelling ratio of the gel in water；
In Fig. 4, a, b, c are respectively the flaxseed gum/cellulose Compound Water obtained by embodiment 1, embodiment 3, embodiment 5
Water retention of the gel in water.
Specific embodiment
In order to be better understood from the technical problem for being solved, technical scheme and the technique effect of the present invention, below in conjunction with reality
Example and accompanying drawing is applied, present disclosure is further described, but be should not be construed as limiting the invention.
In following embodiments, cellulose is cotton linters cellulose, and its viscosity average molecular weigh is 30,000～370,000 dalton.
Embodiment 1
Flaxseed gum/cellulose composite aquogel, its are to be mixed after crosslinking to coagulate by flaxseed gum solution and cellulose solution
Admittedly hydrogel, be～38 μm of porous network structure, the wherein quality of flaxseed gum and cellulose with average pore size
Than for 1:1.
The preparation method of above-mentioned flaxseed gum/cellulose composite aquogel, comprises the following steps that：
1) combination solution of the 97g containing 7wt.%NaOH and 12wt.% urea, magnetic at 25 DEG C are added 3g flaxseed gum
Power stirs 2h, under the conditions of 7500rpm, is centrifuged 15min, obtains flaxseed gum solution, is placed in 4 DEG C of condition storages；
2) combination solution by 97g containing 7wt.%NaOH and 12wt.% urea is cooled to -12.5 DEG C in advance, adds cotton immediately
Short velvet fiber element 3g, mechanical agitation 4min, under the conditions of 7500rpm, 15min is centrifuged, cellulose solution is obtained, is placed in 4 DEG C of bars
Part is stored；
3) according to flaxseed gum and cellulose weight ratios 1:1, by step 1) and 2) in prepare flaxseed gum solution, fibre
Plain solution mixing is tieed up, 15min is stirred, add epoxychloropropane 4mL, continuation stirring 30min to obtain flaxseed gum/cellulose and be combined
Hydrogel, then under the conditions of 3000rpm, is centrifuged 5min；
4) solution after centrifugation is poured in mould, 30min solidification forming under the conditions of being placed in 60 DEG C, washing obtains linseed
Glue/cellulose composite aquogel.
Embodiment 2
Flaxseed gum/cellulose composite aquogel, its are to be mixed after crosslinking to coagulate by flaxseed gum solution and cellulose solution
Admittedly hydrogel, be～35 μm of porous network structure, the wherein quality of flaxseed gum and cellulose with average pore size
Than for 1:3.
The preparation method of above-mentioned flaxseed gum/cellulose composite aquogel, comprises the following steps that：
1) combination solution of the 97g containing 7wt.%NaOH and 12wt.% urea, magnetic at 25 DEG C are added 3g flaxseed gum
Power stirs 2h, under the conditions of 7500rpm, is centrifuged 15min, obtains flaxseed gum solution, is placed in 4 DEG C of condition storages；
2) combination solution by 97g containing 7wt.%NaOH and 12wt.% urea is cooled to -12.5 DEG C in advance, adds cotton immediately
Short velvet fiber element 3g, mechanical agitation 4min, under the conditions of 7500rpm, 15min is centrifuged, cellulose solution is obtained, is placed in 4 DEG C of bars
Part is stored；
3) according to flaxseed gum and cellulose weight ratios 1:3, by step 1) and 2) in prepare flaxseed gum solution, fibre
Plain solution mixing is tieed up, 15min is stirred, add epoxychloropropane 6mL, continuation stirring 30min to obtain flaxseed gum/cellulose and be combined
Hydrogel, under the conditions of 3000rpm, is centrifuged 5min；
4) by step 3) centrifugation after solution pour in mould, 30min solidification forming under the conditions of being placed in 60 DEG C, washing are obtained
Flaxseed gum/cellulose composite aquogel.
Embodiment 3
Flaxseed gum/cellulose composite aquogel, its are to be mixed after crosslinking to coagulate by flaxseed gum solution and cellulose solution
Admittedly hydrogel, be～33 μm of porous network structure, the wherein quality of flaxseed gum and cellulose with average pore size
Than for 1:5.
The preparation method of above-mentioned flaxseed gum/cellulose composite aquogel, comprises the following steps that：
1) combination solution of the 97g containing 7wt.%NaOH and 12wt.% urea, magnetic at 25 DEG C are added 3g flaxseed gum
Power stirs 2h, under the conditions of 7500rpm, is centrifuged 15min, obtains flaxseed gum solution, is placed in 4 DEG C of condition storages；
2) combination solution by 97g containing 7wt.%NaOH and 12wt.% urea is cooled to -12.5 DEG C in advance, adds cotton immediately
Short velvet fiber element 3g, mechanical agitation 4min, under the conditions of 7500rpm, 15min is centrifuged, cellulose solution is obtained, is placed in 4 DEG C of bars
Part is stored；
3) by step 1) and 2) in prepare flaxseed gum solution, cellulose solution is according to linseed and cellulose
Than 1:5 mixing, stir 15min, add epoxychloropropane 8mL, continue stirring 30min and obtain flaxseed gum/cellulose Compound Water
Gel, under the conditions of 3000rpm, is centrifuged 5min；
4) by step 3) centrifugation after solution pour in mould, 30min solidification forming under the conditions of being placed in 60 DEG C, washing are obtained
Flaxseed gum/cellulose composite aquogel.
Embodiment 4
Flaxseed gum/cellulose composite aquogel, its are to be mixed after crosslinking to coagulate by flaxseed gum solution and cellulose solution
Admittedly hydrogel, be～28 μm of porous network structure, the wherein quality of flaxseed gum and cellulose with average pore size
Than for 1:7.
The preparation method of above-mentioned flaxseed gum/cellulose composite aquogel, comprises the following steps that：
1) combination solution of the 97g containing 7wt.%NaOH and 12wt.% urea, magnetic at 25 DEG C are added 3g flaxseed gum
Power stirs 2h, under the conditions of 7500rpm, is centrifuged 15min, obtains flaxseed gum solution, is placed in 4 DEG C of condition storages；
2) combination solution by 97g containing 7wt.%NaOH and 12wt.% urea is cooled to -12.5 DEG C in advance, adds cotton immediately
Short velvet fiber element 3g, mechanical agitation 4min, under the conditions of 7500rpm, 15min is centrifuged, cellulose solution is obtained, is placed in 4 DEG C of bars
Part is stored；
3) by step 1) and 2) in prepare flaxseed gum solution, cellulose solution is according to flaxseed gum and cellulose weight
Amount compares 1：7 mixing, stir 15min, add epoxychloropropane 6mL, continuation stirring 30min to obtain flaxseed gum/cellulose and be combined
Hydrogel, under the conditions of 3000rpm, is centrifuged 5min；
4) by step 3) centrifugation after solution pour in mould, 30min solidification forming under the conditions of being placed in 60 DEG C, washing are obtained
Flaxseed gum/cellulose composite aquogel.
Embodiment 5
Flaxseed gum/cellulose composite aquogel, its are to be mixed after crosslinking to coagulate by flaxseed gum solution and cellulose solution
Admittedly hydrogel, be～25 μm of porous network structure, the wherein quality of flaxseed gum and cellulose with average pore size
Than for 1:9.
The preparation method of above-mentioned flaxseed gum/cellulose composite aquogel, comprises the following steps that：
1) combination solution of the 97g containing 7wt.%NaOH and 12wt.% urea, magnetic at 25 DEG C are added 3g flaxseed gum
Power stirs 2h, under the conditions of 7500rpm, is centrifuged 15min, obtains flaxseed gum solution, is placed in 4 DEG C of condition storages；
2) combination solution by 97g containing 7wt.%NaOH and 12wt.% urea is cooled to -12.5 DEG C in advance, adds cotton immediately
Short velvet fiber element 3g, mechanical agitation 4min, under the conditions of 7500rpm, 15min is centrifuged, cellulose solution is obtained, is placed in 4 DEG C of bars
Part is stored；
3) by step 1) and 2) in prepare flaxseed gum solution, cellulose solution is according to flaxseed gum and cellulose weight
Amount compares 1：9 mixing, stir 15min, add epoxychloropropane 4mL, continuation stirring 30min to obtain flaxseed gum/cellulose and be combined
Hydrogel, under the conditions of 3000rpm, is centrifuged 5min；
4) by step 3) centrifugation after solution pour in mould, 30min solidification forming under the conditions of being placed in 60 DEG C, washing are obtained
Flaxseed gum/cellulose composite aquogel.
The flaxseed gum of embodiment 1 and embodiment 5/cellulose composite aquogel is carried out equilibrium swelling experiments contrast, as Fig. 1 institute
Show, the flaxseed gum/cellulose composite aquogel of swelling rear embodiment 1 and embodiment 5 substantially becomes big, and the answering of embodiment 1
Heshui gel swelling ability is significantly greater than embodiment 5, and in composite aquogel, flaxseed gum content is higher, the swelling behavior for showing
Also stronger.
ESEM sight is carried out after flaxseed gum to embodiment 2 and embodiment 5/cellulose composite aquogel water absorption and swelling
Examine, as shown in Fig. 2 composite aquogel shows uniform three-dimensional porous network structure, average pore size distinguish～35 μm and
～25 μm.It can thus be appreciated that：In composite aquogel, flaxseed gum content is higher, swelling after aperture also bigger.
In order to verify the water absorbing properties of flaxseed gum/cellulose composite aquogel further, 1,3,5 institute of embodiment is tested
Hydrogel swelling behavior, as a result as shown in figure 3, the equilibrium swelling ratio of embodiment 1,3,5 be respectively 390,153,51g/g,
It can thus be appreciated that：In composite aquogel, flaxseed gum content is bigger, and equilibrium swelling ratio is also bigger；Subsequently, embodiment 1,3,5 is tested
The water retention property of gained hydrogel, as shown in figure 4, embodiment 1,3,5 all shows good water retention property (about 14 days), and
The content of flaxseed gum is bigger, and corresponding water retention property is also better, it was confirmed that flaxseed gum/cellulose composite aquogel is good
Water suction and water retention property.
Tested by simple soil degrading, gained flaxseed gum/cellulose composite aquogel of the present invention is placed into the soil
In, in the degradation property of different time period observation hydrogels, observation finds that flaxseed gum/cellulose composite aquogel can be by
Microbial degradation in soil.
The above is only the preferred embodiment of the present invention, it is noted that come for one of ordinary skill in the art
Say, without departing from the concept of the premise of the invention, can also make some modifications and variations, these belong to the present invention's
Protection domain.
Claims (10)
1. flaxseed gum/cellulose composite aquogel, it is characterised in that it is mixed by flaxseed gum solution and cellulose solution
Concretionary porous network hydrogel after crosslinking, average pore size are 25～38 μm, wherein the quality of flaxseed gum and cellulose
Than being preferably 1:1～1:9.
2. flaxseed gum according to claim 1/cellulose composite aquogel, it is characterised in that the cellulose viscous all
Molecular weight is 30,000～370,000 dalton.
3. flaxseed gum according to claim 1/cellulose composite aquogel, it is characterised in that the mixing is crosslinked molten
Carry out in liquid.
4. flaxseed gum according to claim 1/cellulose composite aquogel, it is characterised in that the crosslinking adopts epoxy
Chloropropane adds 0.5～5mL epoxy chlorine as crosslinking agent in the mixed solution of every 100g flaxseed gum solution and cellulose solution
Propane.
5. the preparation method of flaxseed gum/cellulose composite aquogel, it is characterised in that key step is as follows：
1) flaxseed gum solution and cellulose solution are prepared respectively, is placed in 1～7 DEG C of condition storage；
2) mass ratio for pressing flaxseed gum and cellulose is 1:1～1:9, by step 1) gained flaxseed gum solution and cellulose molten
Liquid is mixed, and being subsequently adding epoxychloropropane carries out cross-linking reaction, obtains flaxseed gum/cellulose composite cross-linked polymer solution；
3) by step 2) gained flaxseed gum/cellulose composite cross-linked polymer solution solidified, that is, obtain flaxseed gum/cellulose
Composite aquogel.
6. the preparation method of flaxseed gum according to claim 5/cellulose composite aquogel, it is characterised in that the Asia
Numb seed glue and cellulose are dissolved into the mixed aqueous solution of urea and alkali；Flaxseed gum quality hundred in the flaxseed gum solution
It is 0.5～4wt.% to divide content；In the cellulose solution, the weight/mass percentage composition of cellulose is 1～5wt.%.
7. the preparation method of flaxseed gum according to claim 5/cellulose composite aquogel, it is characterised in that the step
In rapid 2), in every 100g flaxseed gum/cellulose composite cross-linked polymer solution, the addition of epoxychloropropane is 0.5～5mL.
8. the preparation method of flaxseed gum according to claim 5/cellulose composite aquogel, it is characterised in that the step
In rapid 2), the time of cross-linking reaction is 10～120min.
9. the preparation method of flaxseed gum according to claim 5/cellulose composite aquogel, it is characterised in that the step
In rapid 2), the step of also include evacuation and centrifugal degassing removal of impurities after cross-linking reaction.
10. the preparation method of flaxseed gum according to claim 5/cellulose composite aquogel, it is characterised in that described
Step 3) in, setting temperature is 4～60 DEG C, and setting time is 0.5～12h.
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Cited By (7)
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| CN110016160A (en) * | 2019-04-10 | 2019-07-16 | 南方医科大学 | A kind of preparation method of polysaccharide based aquagel |
| CN110078974A (en) * | 2019-03-22 | 2019-08-02 | 昆明理工大学 | Sesbania gum/cellulose composite water conservation hydrogel preparation method |
| CN110463567A (en) * | 2019-08-12 | 2019-11-19 | 亿利资源集团有限公司 | A kind of soil cultivation agent and preparation method thereof |
| CN113230017A (en) * | 2021-05-10 | 2021-08-10 | 上海捷儿金科技股份有限公司 | Heat-insulating pad and application thereof |
| CN113244455A (en) * | 2021-05-17 | 2021-08-13 | 广西医科大学 | 3D printing flaxseed hydrogel support and preparation method and application thereof |
| CN113388405A (en) * | 2021-06-15 | 2021-09-14 | 鲁东大学 | Application of double-network hydrogel in soil water retention |
| CN115154407A (en) * | 2022-02-22 | 2022-10-11 | 佑道(天津)健康咨询有限公司 | Chitosan flaxseed gum cross-linked hydrogel, preparation method and application thereof in gastric bulking agent |
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