CN109161144A - A kind of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer and preparation method thereof - Google Patents
A kind of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer and preparation method thereof Download PDFInfo
- Publication number
- CN109161144A CN109161144A CN201810762107.8A CN201810762107A CN109161144A CN 109161144 A CN109161144 A CN 109161144A CN 201810762107 A CN201810762107 A CN 201810762107A CN 109161144 A CN109161144 A CN 109161144A
- Authority
- CN
- China
- Prior art keywords
- carbon nanotube
- nano fiber
- polyacrylamide
- chitin
- shrimp
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/24—Homopolymers or copolymers of amides or imides
- C08L33/26—Homopolymers or copolymers of acrylamide or methacrylamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
-
- 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
-
- 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
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/24—Homopolymers or copolymers of amides or imides
- C08J2333/26—Homopolymers or copolymers of acrylamide or methacrylamide
-
- 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
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/041—Carbon nanotubes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The present invention relates to a kind of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer and the method for producing elastomers, the following steps are included: the chitin extraction from shrimp and crab shells, mechanical lapping prepares chitin nano fiber, and situ aggregation method prepares polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer.The composite conducting elastomer makes full use of the high intensity of chitin nano fiber, and high-specific surface area and the excellent electricity of carbon nanotube, magnetics mechanical property improve the mechanical strength and electric conductivity of polyacrylamide.
Description
Technical field
The present invention relates to a kind of conductive elastomers and preparation method thereof more particularly to a kind of polyacrylamide/chitin to receive
Rice fiber/carbon nanotube conducting elastomer and preparation method thereof.
Background technique
Polyacrylamide (PAM) is a kind of linear macromolecule polymer, has typical three-dimensional net structure, safe nothing
Malicious, good biocompatibility etc. is widely used in the fields such as organizational project and biological medicine material.Polyacrylamide amine structure list
Contain amide groups in member, easily form hydrogen bond, make it have good water-soluble and very high chemical activity, easily passes through grafting or hand over
Connection obtains a variety of modified materials of branch or reticular structure.However, making it in such as artificial muscle's meat bone since its mechanical strength is lower
Bone, adaptive wearing stretch, the application in bending and the research fields such as mobile " electronic skin " and biosensor is limited
System.The method for being conventionally used to improve polyacrylamide mechanical strength includes: to improve crosslink density, reduce gel swelling, chemistry
Modified and building interpenetrating networks (IPN) structure etc..But in contrast experimentation is relatively complicated for these methods, to a certain degree
On limit its application field.
Chitin is second largest natural reproducible living resources of nature storage capacity, is largely present in discarded shrimp crab
In shell.The chitin nano fiber (CNF) obtained after fibrillated processing has the features such as high intensity, high-specific surface area, makes
It is mutually widely used in the mechanical strength for improving composite material as Bioaugnentation；And because it is with good biocompatibility and can
Reproducibility of degrading etc., to the nanofiber-based composite material of developing in the " electronics that can adaptively dress stretching, bending and movement
Skin ", " health detection sensor ", " flexible energy storage material " etc. have the biological medicine field of new materials of extensive market prospects
Using being of great significance.
Carbon nanotube (CNT) is widely used in dielectric material, electricity due to performances such as its excellent electricity, magnetics mechanics
The fields such as pole material, nano electron device and electromagnetic shielding material.It can be prepared carbon nano-tube filled into polymeric matrix
The excellent composite material of electric conductivity out.However, having between pipe since carbon nanotube has bigger draw ratio and specific surface area
Very strong Van der Waals force and π-πconjugation easily reunite in the polymer, it are caused easily to slide in loading process
It falls and stress is caused to concentrate, be unable to reach reinforcing effect.The method of traditional dispersing Nano carbon tubes need to carry out " chemistry to carbon nanotube
It is modified ", but this method not only increases the preparation price of carbon nanotube, and its electron-transport access easily quilt in modifying process
It destroys, electric conductivity is caused to decline.
Summary of the invention
It is an object of the invention to improve the mechanical strength of polyacrylamide and electric conductivity, it is prepared for a kind of polyacrylamide
Amine/chitin nano fiber/carbon nanotube conducting elastomer, the composite conducting elastomer make full use of chitin nano fiber
High intensity, high-specific surface area and the excellent electricity of carbon nanotube, magnetics mechanical property improve the mechanical strength of polyacrylamide
And electric conductivity.
A kind of the technical solution used in the present invention are as follows: polyacrylamide/chitin nano fiber/carbon nanotube conducting bullet
The preparation method of property body, includes the following steps
S01 chitin extraction from shrimp and crab shells, including
A cleans discarded shrimp or shrimp and crab shells, and the calcium carbonate removed in shrimp or shrimp and crab shells powder in acid solution is soaked in after milling,
It is washed with water to neutrality later；
Acid treated shrimp or shrimp and crab shells powder are added in aqueous slkali b, magnetic agitation in water-bath are placed in, to remove in powder
Protein, be washed with water to neutrality later；
Powder after alkali process is soaked in ethanol solution by c, to remove the coloring matter in shrimp and crab shells powder, is purified
Chitin；
S02 mechanical lapping prepares chitin nano fiber, including
D prepares the suspension of the chitin of S01 acquisition, and suspension is placed in grinder and is ground, and obtains purifying chitin and receives
Rice fibrous suspension；
S03 situ aggregation method prepares polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer, including
E configures the mixed solution of acrylamide and crosslinking agent,
Chitin nano fiber is added in mixed solution and is ultrasonically treated with carbon nanotube by f,
Initiator is added into the mixed solution after ultrasonic treatment in g,
The sample for entering potassium peroxydisulfate will be placed in be formed in mold by h is made polyacrylamide/chitin nano fiber/carbon nanometer
Tubular elastic body.
Further, the crosslinking agent selects N.N- methylene-bisacrylamide, which can make third as crosslinking agent
Acrylamide monomer is polymerized to polyacrylamide by way of chemical crosslinking, and initiator selects potassium peroxydisulfate, which, which is used as, draws
Agent is sent out, after addition, polymerization reaction starts or the rate of controllable reaction.
Further, the acid solution is the hydrochloric acid solution that mass fraction is 6-7%, and the acid processing time is 12-24 hours.
Further, shrimp is discarded in a or shrimp and crab shells are milled and screen 50-60 mesh powder.
Further, the aqueous slkali is the NaOH solution that mass fraction is 5-6%.
Further, bath temperature is 85-95 DEG C in the b, carries out magnetic agitation during water-bath, water bath time is
10-12 hours.
Further, ethanol solution concentration 50-95%, alcohol solution dipping time are 24-48 hours.
Further, acrylamide is mixed with N.N- methylene-bisacrylamide with mass ratio 10:1.
Further, first is added into solution with acrylamide monomer and 5 ~ 10:1 of chitin nano fiber mass ratio in f
Shell element, adds carbon nanotube into solution by the 0.5-2 wt% of acrylamide quality of carbon nanotube mass.
Further, the h specifically includes (1) and hollow silica gel board mold is placed on one piece of glass plate, makes silica gel plate
It closely pastes on a glass.The sample that potassium peroxydisulfate is added is poured into mold, is then opened with another piece of glass plate from edge
Beginning slowly depresses, and avoids the generation of bubble,
(2) sample is put into drying in oven.
The present invention also provides a kind of polyacrylamide/chitin nano fiber/carbon according to made from above-mentioned preparation method
Nanotube conductive elastomer.
Beneficial effect caused by the present invention includes: 1. using food waste product abandonment shrimp, shrimp and crab shells as raw material, is mentioned after cleaning
It takes chitin and prepares chitin nano fiber, raw material sources are wide, at low cost, not only alleviate environmental pollution, but also higher value application
Chitin is turned waste into wealth, and has sustainable developability.In addition, chitin nano fiber has excellent as Bioaugnentation phase
The features such as mechanical property, biodegradability and reproducibility.
2. polyacrylamide is safe and non-toxic, it is combined with the carbon nanotube with superior electrical conductivity energy, can prepare and obtain
Must have the conductive elastomer of electromagnetic interference shield function, effectively to inhibit modern society since electronic product is excessively used and
The electromagnetic pollution of initiation.
3. preparation gained polyacrylamide/chitin nano fiber/carbon nanotube conducting plural gel has good power
Learn performance, electric conductivity, electromagnetic interference shield performance；Developing biomass nano fiber-base composite materials can adaptively worn
Before wearing " electronic skin " of stretching, bending and movement, " health detection sensor ", " flexible energy storage material " etc. there is extensive market
The biological medicine new material of scape, the application of devices field are of great significance.
Specific embodiment
Further details of explanation is done to the present invention combined with specific embodiments below, it should be appreciated that of the invention
Protection scope is not limited by specific embodiment.
The specific processing step of polyacrylamide/chitin nano fiber/carbon nanotube conducting plural gel preparation
Include:
1. chitin extraction
(1) it by after discarded shrimp or shrimp and crab shells cleaning, is milled and screens 50-60 purpose and discard shrimp or shrimp and crab shells powder, be soaked in matter
It measures in the hydrochloric acid solution that score is 6-7% 12-24 hours, to remove the calcium carbonate in shrimp or shrimp and crab shells powder, uses distilled water later
It washs to neutrality；
(2) NaOH solution for being 5-6% by acid treated powder is placed in mass fraction, is placed in magnetic in 85-95 DEG C of water-bath
Power stirs 10-12 hours, to remove the protein in shrimp or shrimp and crab shells powder, is washed with distilled water to neutrality later, this process
It is repeated four times, until protein completely removes；
(3) by (2) treated, powder is placed in that mass fraction is that 24-48 h is impregnated in the ethanol solution of 50-95%, to remove shrimp
Coloring matter in crab shell powder is washed with distilled water until powder becomes white, acquisition purifying chitin.
2. mechanical lapping prepares chitin nano fiber
Distilled water dilution is added to chitin obtained by step in 1 (3), is configured to the suspension that concentration is 0.8 wt%-1wt%, benefit
It is carried out mechanical lapping 2-3 times with grinder, grinder rotating speed is 1500 rpm/min, and abrasive disk space 0.2-0.3mm, collection can
Chitin Nanowire (CNF) dimension suspension must be purified.
3. preparing polyacrylamide/chitin nano fiber/carbon nanotube conducting plural gel
(1) it weighs appropriate acrylamide (AM) to be placed in beaker, the water of certain mass is added, stirred in blender complete to AM
Dissolution, configuration quality score are the solution of 39 wt%-43wt%.With acrylamide monomer/N.N- methylene-bisacrylamide
(MBA) ratio of mass ratio 10:1, then N.N- methylene-bisacrylamide is weighed, it pours into the AM solution being completely dissolved, then
Secondary stir to MBA is completely dissolved.
(2) chitin nano fiber is taken with acrylamide monomer/chitin nano fiber mass ratio 10:1 ratio；Claim again
It takes appropriate carbon nanotube (the 0.5-2 wt% that carbon nanotube CNT mass is AM mass) to be placed in beaker to be uniformly mixed.
(3) mixed liquor of the AM and MBA of step (1) configuration are poured into step (2) corresponding beaker, is subsequently placed in super
Sound wave cell crushing instrument (ice-water bath) is ultrasonically treated, ultrasonic time 10-20mim, and ultrasonic power 75-85% will be ultrasonically treated
The mixed solution obtained afterwards is placed in 1h in ice water and cools down.
(4) appropriate potassium peroxydisulfate is weighed with the ratio of acrylamide monomer/potassium peroxydisulfate (KPS) mass ratio 20:1, stirred
Mix stirring and dissolving in device.
(5) step (3) resulting sample is placed in blender, (4) resulting KPS solution is added, mixes slowly 15mim
Afterwards, standing and defoaming.
(6) hollow silica gel board mold (thick: 1.5mm, outside dimension: 85mm × 55mm, inside dimension: 80mm × 50mm) is put
On one piece of glass plate, paste silica gel plate closely on a glass.Sample obtained by step (5) is poured into mold, is then used
Another piece of glass plate is slowly depressed since edge, avoids the generation of bubble.It is using the purpose of silica gel plate controllable all
Thickness of sample is 1.5 mm.
(7) step (6) sample is put into baking oven (temperature: 40 DEG C -50 DEG C), is taken out after 12 hours.It takes obtained by fraction
Sample claims its quality, places into baking oven (temperature；100 DEG C), it is taken after 10-12 hours.Quality after it is dried is weighed again, calculates sample
Moisture content, by calculate moisture content, to keep all samples moisture content identical, mechanical property just has comparativity.
The present invention is specifically described below by example, this example is served only for being described further invention, no
It can be interpreted as the limitation to protection scope of the present invention, those skilled in the art makes some non-according to the content of foregoing invention
The change and adjustment of essence all belong to the scope of protection of the present invention.
Comparative example 1
1. preparing polyacrylamide (PAM) gel
(1) polyacrylamide (AM) for weighing 2.84g is placed in beaker, and addition 6.2g water, which is stirred to AM, to be completely dissolved.It weighs again
The N.N- methylene-bisacrylamide (MBA) of 0.0284g, pours into AM solution, is again stirring for MBA being completely dissolved.
(2) 0.0142g potassium peroxydisulfate (KPS) is weighed, then is poured into beaker, the stirring and dissolving in blender mixes slowly
15min, standing and defoaming.
(3) hollow silica gel board mold (thick: 1.5mm, outside dimension: 85mm × 55mm, inside dimension: 80mm × 50mm) is put
On one piece of glass plate, paste silica gel plate closely on a glass.Sample obtained by step (5) is poured into mold, is then used
Another piece of glass plate is slowly depressed since edge.
(7) step (6) ready-made sample is put into baking oven (temperature: 50 DEG C), is taken out after 10 hours.It is to be measured.
By above step, virgin pp acrylamide gel can be prepared.At room temperature, sample is cut into width 10mm,
Length 30mm sample characterizes sample forces using omnipotent mechanics machine (transducer range 1KN, loading velocity 20mm/min)
Learn performance: preparation gained virgin pp acrylamide gel tensile strength is lower, only 0.11MPa, elongation at break 82.12%.It will
Sample is cut into having a size of 1.0mm × 1.5mm size, then sample is placed on glass slide, is gently pressed with another piece of glass slide
Sample flattens sample.The sample for taking 1mm × 1mm size, be put into electric heating constant-temperature blowing drying box (temperature: 60 DEG C, the time:
48h), quality after its drying is weighed after taking out sample；Sample is placed in deionized water (room temperature) again, takes out after 48h and gently wipes
The moisture of sample surfaces is wiped, its quality is then weighed, it is higher to calculate its swellbility, is 7.12 g/g.The scanning of FE-SEM Flied emission
Electron microscope (JSM-6700F, JEOL Ltd, Japan) is used for shape characteristic (the scanning voltage 1.5kV, 10 μ of electric current of sample
A).Method for making sample: sample to be tested freeze-drying is placed on conductive carbon film, using automatic gold spraying instrument (AUTO FINE
COATER JFC-1600, JEOL, Japan) metal spraying processing is carried out to sample.PAM gel surface and section are presented typically
Gel porous structure.
Comparative example 2
1. chitin extraction
(1) it by after discarded shrimp or shrimp and crab shells cleaning, is milled and screens 60 purposes and discard shrimp and crab shells powder, being soaked in mass fraction is
12 hours in 7% hydrochloric acid solution, to remove the calcium carbonate in shrimp shrimp and crab shells powder, it is washed with distilled water to neutrality later；
(2) NaOH solution that mass fraction is 6% is added, magnetic agitation 10 hours in 95 DEG C of water-bath are placed in, to remove shrimp
Protein in crab shell powder, is washed with distilled water to neutrality later, and this process was repeated four times, until protein completely removes；
(3) 24 h are impregnated in the ethanol solution that mass fraction is 95%, to remove the coloring matter in shrimp and crab shells powder, with steaming
Distilled water washing is until powder becomes white, acquisition purifying chitin.
2. mechanical lapping prepares chitin nano fiber
Distilled water dilution is added to chitin obtained by step in 1 (3), is configured to the suspension that concentration is 0.8 wt%, utilizes grinding
Machine carries out mechanical lapping 3 times, and grinder rotating speed is 1500 rpm/min, and abrasive disk space is 0.2 mm, and collection can must purify crust
Plain nanofiber suspension.
3. preparing polyacrylamide/chitin nano fiber (PAM/CNF) plural gel
(1) polyacrylamide (AM) for weighing 2.84g is placed in beaker, and addition 7.5g water, which is stirred to AM, to be completely dissolved.It weighs again
The N.N- methylene-bisacrylamide (MBA) of 0.0284g, pours into AM solution, is again stirring for MBA being completely dissolved.
(2) suspension of the 0.0568g containing chitin nano fiber is taken to be placed in beaker.
(3) mixed liquor of AM and MBA that step (1) prepares are poured into step (2) corresponding beaker, is subsequently placed in super
Sound wave cell crushing instrument (ice-water bath) is ultrasonically treated, ultrasonic time 15mim, ultrasonic power 80%, will be obtained after ultrasonic treatment
Mixed solution be placed in ice water 1h and cool down.
(4) 0.0142g potassium peroxydisulfate (KPS) is weighed, then is poured into beaker, the stirring and dissolving in blender.
(5) step (3) resulting sample is placed in blender, (4) resulting KPS solution is added, mixes slowly
15mim。
(6) hollow silica gel board mold (thick: 1.5mm, outside dimension: 85mm × 55mm, inside dimension: 80mm × 50mm) is put
On one piece of glass plate, paste silica gel plate closely on a glass.Sample obtained by step (5) is poured into mold, is then used
Another piece of glass plate is slowly depressed since edge.
(7) step (6) ready-made sample is put into baking oven (temperature: 50 DEG C), is taken out after 10 hours.It is to be measured.
By above step, polyacrylamide/chitin nano fiber plural gel can be prepared, wherein chitin is received
Rice fiber is the 2% of acrylamide monomer quality.At room temperature, sample is cut into width 10mm, length 30mm sample uses ten thousand
Energetics testing machine (transducer range 1KN, loading velocity 20mm/min) characterizes sample mechanical property: preparation gained poly- third
Acrylamide/chitin nano fiber tensile strength is 0.34MPa, and elongation at break 132.17% illustrates chitin nano fiber
The mechanical strength of polyacrylamide can be effectively improved.Sample is cut into having a size of 1.0mm × 1.5mm size, then sample is set
In on glass slide, sample is gently pressed with another piece of glass slide, sample is flattened.The sample for taking 1mm × 1mm size, is put into
Electric heating constant-temperature blowing drying box (temperature: 60 DEG C, the time: 48h), quality after its drying is weighed after taking out sample；Sample is set again
The moisture that gently wipe samples surface is taken out after (room temperature) in deionized water, 48h, then weighs its quality, calculates its swelling
Degree is 3.78 g/g, and compared with virgin pp amide (swellbility 7.12), swellbility reduces 47%, shows in polypropylene
CNF is added in acrylamide gel can be effectively reduced the swellbility of gel, improve the degree of cross linking of gel.
Comparative example 3
1. preparing polyacrylamide/carbon nanotube (PAM/CNT) plural gel
(1) polyacrylamide (AM) for weighing 2.84g is placed in beaker, and addition 6.7g water, which is stirred to AM, to be completely dissolved.It weighs again
The N.N- methylene-bisacrylamide (MBA) of 0.0284g, pours into AM solution, is again stirring for MBA being completely dissolved.
(2) carbon nanotube 0.0568g is taken to be placed in beaker.
(3) mixed liquor of AM and MBA that step (1) prepares are poured into step (2) corresponding beaker, is subsequently placed in super
Sound wave cell crushing instrument (ice-water bath) is ultrasonically treated, ultrasonic time 15mim, ultrasonic power 80%, will be obtained after ultrasonic treatment
Mixed solution be placed in ice water 1h and cool down.
(4) 0.0142g potassium peroxydisulfate (KPS) is weighed, then is poured into beaker, the stirring and dissolving in blender.
(5) step (3) resulting sample is placed in blender, (4) resulting KPS solution is added, mixes slowly
15mim。
(6) hollow silica gel board mold (thick: 1.5mm, outside dimension: 85mm × 55mm, inside dimension: 80mm × 50mm) is put
On one piece of glass plate, paste silica gel plate closely on a glass.Sample obtained by step (5) is poured into mold, is then used
Another piece of glass plate is slowly depressed since edge.
(7) step (6) ready-made sample is put into baking oven (temperature: 50 DEG C), is taken out after 10 hours.It is to be measured.
By above step, polyacrylamide/carbon nanotube plural gel can be prepared, wherein carbon nanotube is propylene
The 2% of amide monomer quality.At room temperature, sample is cut into width 10mm, length 30mm sample uses omnipotent mechanics machine
(transducer range 1KN, loading velocity 20mm/min) characterizes sample mechanical property: preparation gained polyacrylamide/carbon is received
Mitron tensile strength is poor, only 0.08MPa, and elongation at break is only 58.32%, illustrates carbon nanotube in polyacrylamide
Reunite, after applying plus load, since stress can not be evenly dispersed, causes its mechanical property poor.
Embodiment 1
1. chitin extraction
(1) it by after discarded shrimp or shrimp and crab shells cleaning, is milled and screens 50 purposes and discard shrimp and crab shells powder, being soaked in mass fraction is
24 hours in 6% hydrochloric acid solution, to remove the calcium carbonate in shrimp shrimp and crab shells powder, it is washed with distilled water to neutrality later；
(2) NaOH solution that mass fraction is 5% is added, magnetic agitation 12 hours in 85 DEG C of water-bath are placed in, to remove shrimp
Protein in crab shell powder, is washed with distilled water to neutrality later, and this process was repeated four times, until protein completely removes；
(3) 48 h are impregnated in the ethanol solution that mass fraction is 50%, to remove the coloring matter in shrimp and crab shells powder, with steaming
Distilled water washing is until powder becomes white, acquisition purifying chitin.
2. mechanical lapping prepares chitin nano fiber
Distilled water dilution is added to chitin obtained by step in 1 (3), is configured to the suspension that concentration is 1wt%, utilizes grinder
It carries out mechanical lapping 2 times, grinder rotating speed is 1500 rpm/min, and abrasive disk space is 0.2 mm, and collection can must purify chitin
Nanofiber suspension.
3. preparing polyacrylamide/chitin nano fiber/carbon nanotube conducting plural gel
(1) polyacrylamide (AM) for weighing 2.84g is placed in beaker, and 6.5g water is added, and uniform stirring to AM is completely dissolved.Again
The N.N- methylene-bisacrylamide (MBA) for weighing 0.0284g, pours into AM solution, is again stirring for MBA being completely dissolved.
(2) suspension and carbon nanotube 0.0142g for taking the 0.0284g containing chitin nano fiber are placed in beaker.
(3) mixed liquor of AM and MBA in step (1) is poured into step (2) corresponding beaker, is subsequently placed in ultrasonic wave
Cell crushing instrument (ice-water bath) is ultrasonically treated, ultrasonic time 10mim, ultrasonic power 75%, mixed by what is obtained after ultrasonic treatment
It closes solution and is placed in 1h cooling in ice water.
(4) 0.0142g potassium peroxydisulfate (KPS) is weighed, then is poured into beaker, is stirred in blender to being completely dissolved.
(5) step (3) resulting sample is placed in blender, (4) resulting KPS solution is added, at a slow speed uniform stirring
15mim, standing and defoaming.
(6) hollow silica gel board mold (thick: 1.5mm, outside dimension: 85mm × 55mm, inside dimension: 80mm × 50mm) is put
On one piece of glass plate, paste silica gel plate closely on a glass.Sample obtained by step (5) is poured into mold, is then used
Another piece of glass plate is slowly depressed since edge.
(7) step (6) ready-made sample is put into baking oven (temperature: 40 DEG C), is taken out after 12 hours, it is to be measured.
By above step, it is compound solidifying that polyacrylamide/chitin nano fiber/carbon nanotube conducting can be prepared
Glue.At room temperature, sample is cut into width 10mm, length 30mm sample, (transducer range is using omnipotent mechanics machine
1KN, loading velocity 20mm/min) characterization sample mechanical property: when nano-cellulose and carbon nanotube mass ratio are 2:1,
Preparation gained polyacrylamide/chitin nano fiber/carbon nanotube tensile strength is 0.29 MPa, and elongation at break is
141.85%, elasticity modulus is 0.22 Mpa.Compared with virgin pp amide, mechanical strength increases about 3 times.Illustrate Nanowire
Tie up element addition can effective dispersing Nano carbon tubes, improve its mechanical property.It is led using RST-8 type four-point probe characterization sample
Sample is cut into the disc-shaped that diameter is 2.5mm by electrical property, and the parameters such as measurement thickness of sample, which are placed under four probes, carries out conduction
Rate test, 7.55 × 10-2 of conductivity S/m of sample.Electromagnet shield effect is 18.5 dB.Sample is cut into having a size of 1.0mm
× 1.5mm size, then sample is placed on glass slide, sample is gently pressed with another piece of glass slide, sample is flattened.It takes
The sample of 1mm × 1mm size is put into electric heating constant-temperature blowing drying box (temperature: 60 DEG C, time: 48h), weighs after taking out sample
Quality after it is dried；Sample is placed in deionized water (room temperature) again, the moisture on gently wipe samples surface is taken out after 48h, so
After weigh its quality, calculate its swellbility be 4.18 g/g, (swellbility 7.12), swellbility compared with virgin pp amide
40% is reduced, shows that adding CNF and CNT in polyacrylamide gel can be effectively reduced the swellbility of gel, improve solidifying
The degree of cross linking of glue.
Embodiment 2
1. chitin extraction
(1) after the cleaning of discarded shrimp shrimp and crab shells, it will be milled and screen 60 purposes and discard shrimp and crab shells powder, being soaked in mass fraction is 7%
Hydrochloric acid solution in 12 hours, to remove the calcium carbonate in shrimp shrimp and crab shells powder, be washed with distilled water to neutrality later；
(2) NaOH solution that mass fraction is 6% is added, magnetic agitation 10 hours in 95 DEG C of water-bath are placed in, to remove shrimp
Protein in crab shell powder, is washed with distilled water to neutrality later, and this process was repeated four times, until protein completely removes；
(3) 24 h are impregnated in the ethanol solution that mass fraction is 95%, to remove the coloring matter in shrimp and crab shells powder, with steaming
Distilled water washing is until powder becomes white, acquisition purifying chitin.
2. mechanical lapping prepares chitin nano fiber
Distilled water dilution is added to chitin obtained by step in 1 (3), is configured to the suspension that concentration is 0.8 wt%, utilizes grinding
Machine carries out mechanical lapping 3 times, and grinder rotating speed is 1500 rpm/min, and abrasive disk space is 0.2 mm, and collection can must purify crust
Plain nanofiber suspension.
3. preparing polyacrylamide/chitin nano fiber/carbon nanotube conducting plural gel
(1) polyacrylamide (AM) for weighing 2.84g is placed in beaker, and addition 7g water, which is stirred to AM, to be completely dissolved.It weighs again
The N.N- methylene-bisacrylamide (MBA) of 0.0284g, pours into AM solution, is again stirring for MBA being completely dissolved.
(2) suspension and carbon nanotube 0.0284g for taking the 0.0284g containing chitin nano fiber are placed in beaker.
(3) mixed liquor of AM and MBA that step (1) prepares are poured into step (2) corresponding beaker, is subsequently placed in super
Sound wave cell crushing instrument (ice-water bath) is ultrasonically treated, ultrasonic time 15mim, ultrasonic power 80%, will be obtained after ultrasonic treatment
Mixed solution be placed in ice water 1h and cool down.
(4) 0.0142g potassium peroxydisulfate (KPS) is weighed, then is poured into beaker, the stirring and dissolving in blender.
(5) step (3) resulting sample is placed in blender, (4) resulting KPS solution is added, mixes slowly
15mim。
(6) hollow silica gel board mold (thick: 1.5mm, outside dimension: 85mm × 55mm, inside dimension: 80mm × 50mm) is put
On one piece of glass plate, paste silica gel plate closely on a glass.Sample obtained by step (5) is poured into mold, is then used
Another piece of glass plate is slowly depressed since edge.
(7) step (6) ready-made sample is put into baking oven (temperature: 50 DEG C), is taken out after 10 hours.It is to be measured.
By above step, it is compound solidifying that polyacrylamide/chitin nano fiber/carbon nanotube conducting can be prepared
Glue.At room temperature, sample is cut into width 10mm, length 30mm sample, (transducer range is using omnipotent mechanics machine
1KN, loading velocity 20mm/min) characterization sample mechanical property: when nano-cellulose and carbon nanotube mass ratio are 1:1,
Preparation gained polyacrylamide/chitin nano fiber/carbon nanotube tensile strength is 0.32MPa, and elongation at break is
140.17%, elasticity modulus 0.22MPa.Compared with virgin pp amide, mechanical strength improves 3 times.And with 3 phase of embodiment
Than when nano-filled amount of substance score is 2%, mechanical strength increases 4 times, illustrates that the addition of nano-cellulose can have
Dispersing Nano carbon tubes are imitated, its mechanical property is improved.Sample electric conductivity is characterized using RST-8 type four-point probe, by sample
It is cut into the disc-shaped that diameter is 2.5mm, the parameters such as measurement thickness of sample, which are placed under four probes, carries out conductivity test, sample
8.22 × 10-2 of conductivity S/m；Electromagnet shield effect is 25.5 dB.Sample is cut into having a size of 1.0mm × 1.5mm size,
Sample is placed on glass slide again, sample is gently pressed with another piece of glass slide, sample is flattened.Take 1mm × 1mm size
Sample is put into electric heating constant-temperature blowing drying box (temperature: 60 DEG C, time: 48h), weighs quality after its drying after taking out sample；Again
Sample is placed in deionized water (room temperature), the moisture on gently wipe samples surface is taken out after 48h, then weighs its quality, is counted
Calculating its swellbility is 3.91 g/g, and compared with virgin pp amide (swellbility 7.12), swellbility reduces 45%, shows
CNF and CNT is added in polyacrylamide gel can be effectively reduced the swellbility of gel, improve the degree of cross linking of gel.By sample
Product are cut into having a size of 1.0mm × 1.5mm size, then sample are placed on glass slide, gently press sample with another piece of glass slide
Product flatten sample.It is subsequently placed in Thermo D × R type laser capture microdissection Raman spectrometer (Themo Fisher, the U.S.) test
It is to be measured in platform.Test parameters: 532 nm of excitation wavelength, power 10 mw, scanning range 500-3500cm-1, acquisition time: 6s.
Raman spectrum test result shows: when the mixing mass ratio of CNT and nanofiber is 1:1, ID/IG 1.076 and is not added with
The PAM/CNT gel ID/IG(1.302 of nanofiber) it compares, ID/IG value significantly reduces, it is seen that in PAM/CNT plural gel
The order degree of CNT can be improved in middle addition CNF, and when the mixing mass ratio of CNT and nanofiber is 1:1, CNT's is orderly
Degree obtains maximum improvement.FE-SEM field emission scanning electron microscope (JSM-6700F, JEOL Ltd, Japan) is used for sample
The shape characteristic (scanning voltage 1.5kV, 10 μ A of electric current) of product.Method for making sample: sample to be tested freeze-drying is placed on conductive carbon
On film, metal spraying processing is carried out to sample using automatic gold spraying instrument (AUTO FINE COATER JFC-1600, JEOL, Japan).
CNT has biggish surface energy since draw ratio and specific surface area are larger, between pipe, in the case where dispersing agent is not used, between CNT
Agglomeration is more serious, can obviously observe a large amount of aggregation.Porous structure is presented in PAM gel surface.As CNF and CNT
When mass ratio is 1:1, plural gel microstructure can be observed, and porous structure is presented in sample surfaces and fiber is mutually handed over fiber
Paramnesia is at Nanostructure Network, without obvious fibril aggregation phenomenon, shows that CNF and CNT can mutually disperse to construct in plural gel
Homogeneous mixture system.It is worth noting that, CNT is formed by conductive network in the composite to be provided for the transmission of electronics
Continuous path.
Embodiment 3
1. chitin extraction
(1) after the cleaning of discarded shrimp shrimp and crab shells, it will be milled and screen 60 purposes and discard shrimp and crab shells powder, being soaked in mass fraction is 6%
Hydrochloric acid solution in 18 hours, to remove the calcium carbonate in shrimp shrimp and crab shells powder, be washed with distilled water to neutrality later；
(2) NaOH solution that mass fraction is 5% is added, magnetic agitation 12 hours in 95 DEG C of water-bath are placed in, to remove shrimp
Protein in crab shell powder, is washed with distilled water to neutrality later, and this process was repeated four times, until protein completely removes；
(3) 36 h are impregnated in the ethanol solution that mass fraction is 80%, to remove the coloring matter in shrimp and crab shells powder, with steaming
Distilled water washing is until powder becomes white, acquisition purifying chitin.
2. mechanical lapping prepares chitin nano fiber
Distilled water dilution is added to chitin obtained by step in 1 (3), is configured to the suspension that concentration is 1wt%, utilizes grinder
It carries out mechanical lapping 3 times, grinder rotating speed is 1500 rpm/min, abrasive disk space 0.3mm, and collection can must purify chitin and receive
Rice fibrous suspension.
3. preparing polyacrylamide/chitin nano fiber/carbon nanotube conducting plural gel
(1) polyacrylamide (AM) for weighing 2.84g is placed in beaker, and addition 7.2g water, which is stirred to AM, to be completely dissolved.It weighs again
The N.N- methylene-bisacrylamide (MBA) of 0.0284g, pours into AM solution, is again stirring for MBA being completely dissolved.
(2) suspension and carbon nanotube 0.0568g for taking the 0.0284g containing chitin nano fiber are placed in beaker.
(3) mixed liquor of AM and MBA that step (1) prepares are poured into step (2) corresponding beaker, is subsequently placed in super
Sound wave cell crushing instrument (ice-water bath) is ultrasonically treated, ultrasonic time 20mim, ultrasonic power 75%, will be obtained after ultrasonic treatment
Mixed solution be placed in ice water 1h and cool down.
(4) 0.0142g potassium peroxydisulfate (KPS) is weighed, then is poured into beaker, the stirring and dissolving in blender.
(5) step (3) resulting sample is placed in blender, (4) resulting KPS solution is added, mixes slowly
15mim, standing and defoaming.
(6) hollow silica gel board mold (thick: 1.5mm, outside dimension: 85mm × 55mm, inside dimension: 80mm × 50mm) is put
On one piece of glass plate, paste silica gel plate closely on a glass.Sample obtained by step (5) is poured into mold, is then used
Another piece of glass plate is slowly depressed since edge.
(7) step (6) are prepared into gained sample and is put into baking oven (temperature: 40 DEG C), taken out after 12 hours, it is to be measured.
By above step, it is compound solidifying that polyacrylamide/chitin nano fiber/carbon nanotube conducting can be prepared
Glue.At room temperature, sample is cut into width 10mm, length 30mm sample, (transducer range is using omnipotent mechanics machine
1KN, loading velocity 20mm/min) characterization sample mechanical property: when nano-cellulose and carbon nanotube mass ratio are 2:1,
Preparation gained polyacrylamide/chitin nano fiber/carbon nanotube tensile strength is 0.24 Mpa, and elongation at break is
122.2%, elasticity modulus 0.18MPa.Compared with virgin pp amide, mechanical strength increases 2 times.Illustrate nano-cellulose
Addition can effective dispersing Nano carbon tubes, improve its mechanical property.Sample electric conductivity is characterized using RST-8 type four-point probe
Can, sample is cut into the disc-shaped that diameter is 2.5mm, the parameters such as measurement thickness of sample are placed on progress conductivity survey under four probes
Examination, the conductivity of sample are 7.42 × 10-2 S/m；Electromagnet shield effect is 22.5 dB.Sample is cut into having a size of 1.0mm ×
1.5mm size, then sample is placed on glass slide, sample is gently pressed with another piece of glass slide, sample is flattened.Take 1mm
The sample of × 1mm size is put into electric heating constant-temperature blowing drying box (temperature: 60 DEG C, time: 48h), weighs its baking after taking out sample
Quality after dry；Sample is placed in deionized water (room temperature) again, the moisture on gently wipe samples surface is taken out after 48h, is then claimed
Its quality is measured, calculating its swellbility is 3.61 g/g, and compared with virgin pp amide (swellbility 7.12), swellbility reduces
50%, show that CNF and CNT is added in polyacrylamide gel can be effectively reduced the swellbility of gel, improve gel
The degree of cross linking.Sample is cut into having a size of 1.0mm × 1.5mm size, then sample is placed on glass slide, with another piece of glass slide
Sample is gently pressed, sample is flattened.It is subsequently placed in Thermo D × R type laser capture microdissection Raman spectrometer (Themo
Fisher, the U.S.) it is to be measured in testing stand.Test parameters: 532 nm of excitation wavelength, power 10 mw, scanning range 500-
3500cm-1, acquisition time: 6s.Raman spectrum test result shows: when the mixing mass ratio of CNT and nanofiber is 2:1,
ID/IG is 1.142, with the PAM/CNT gel ID/IG(1.302 for being not added with nanofiber) compared with, ID/IG value significantly reduces, can
See that CNF is added in PAM/CNT plural gel can be improved the order degree of CNT.
The above is only a preferred embodiment of the present invention, and the present invention is not limited in the content of embodiment.For in this field
Technical staff for, can have various change and change within the scope of technical solution of the present invention, made any variation and
Change, within that scope of the present invention.
Claims (10)
1. a kind of polyacrylamide/chitin nano fiber/carbon nanotube conducting method for producing elastomers, it is characterised in that:
Include the following steps
S01 chitin extraction from shrimp and crab shells, including
A cleans discarded shrimp or shrimp and crab shells, and the calcium carbonate removed in shrimp or shrimp and crab shells powder in acid solution is soaked in after milling,
It is washed with water to neutrality later；
Acid treated shrimp or shrimp and crab shells powder are added in aqueous slkali b, magnetic agitation in water-bath are placed in, to remove in powder
Protein, be washed with water to neutrality later；
Powder after alkali process is soaked in ethanol solution by c, to remove the coloring matter in shrimp and crab shells powder, is purified
Chitin；
S02 mechanical lapping prepares chitin nano fiber, including
D prepares the suspension of the chitin of S01 acquisition, and suspension is placed in grinder and is ground, and obtains purifying chitin and receives
Rice fibrous suspension；
S03 situ aggregation method prepares polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer, including
E configures the mixed solution of acrylamide and crosslinking agent,
Chitin nano fiber is added in mixed solution and is ultrasonically treated with carbon nanotube by f,
Initiator is added into the mixed solution after ultrasonic treatment in g,
The sample that initiator is added is placed in be formed in mold by h is made polyacrylamide/chitin nano fiber/carbon nanotube
Elastomer.
2. the preparation side of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer according to claim 1
Method, it is characterised in that: the acid solution is the hydrochloric acid solution that mass fraction is 6-7%, and the acid processing time is 12-24 hours.
3. the preparation side of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer according to claim 1
Method, it is characterised in that: discard shrimp in a or shrimp and crab shells are milled and screen 50-60 mesh powder.
4. the preparation side of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer according to claim 1
Method, it is characterised in that: the aqueous slkali is the NaOH solution that mass fraction is 5-6%.
5. the preparation side of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer according to claim 1
Method, it is characterised in that: bath temperature is 85-95 DEG C in the b, and magnetic agitation, water bath time 10-12 are carried out during water-bath
Hour.
6. the preparation side of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer according to claim 1
Method, it is characterised in that: ethanol solution concentration 50-95%, alcohol solution dipping time are 24-48 hours.
7. the preparation side of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer according to claim 1
Method, it is characterised in that: the crosslinking agent is N.N- methylene-bisacrylamide, acrylamide and N.N- methylene-bisacrylamide
It is mixed with mass ratio 10:1.
8. the preparation side of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer according to claim 1
Method, it is characterised in that: crust is added into solution with acrylamide monomer and 5 ~ 10:1 of chitin nano fiber mass ratio in f
Element adds carbon nanotube into solution by the 0.5-2 wt% of acrylamide quality of carbon nanotube mass.
9. the preparation side of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer according to claim 1
Method, it is characterised in that: the initiator is potassium peroxydisulfate, and the h specifically includes (1) and hollow silica gel board mold is placed on one piece
On glass plate, pastes silica gel plate closely on a glass, the sample that potassium peroxydisulfate is added is poured into mold, then with another
Block glass plate is slowly depressed since edge, avoids the generation of bubble,
(2) sample is put into drying in oven.
10. polyacrylamide/chitin nano fiber/carbon nanotube made from a kind of preparation method according to claim 1
Conductive elastomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810762107.8A CN109161144A (en) | 2018-07-12 | 2018-07-12 | A kind of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810762107.8A CN109161144A (en) | 2018-07-12 | 2018-07-12 | A kind of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109161144A true CN109161144A (en) | 2019-01-08 |
Family
ID=64897709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810762107.8A Pending CN109161144A (en) | 2018-07-12 | 2018-07-12 | A kind of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109161144A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109897196A (en) * | 2019-02-19 | 2019-06-18 | 南京林业大学 | A kind of nano-chitosan-titanium dioxide-polyacrylamide composite catalyzing hydrogel and its preparation method and application |
| CN110483809A (en) * | 2019-07-16 | 2019-11-22 | 华南理工大学 | A kind of nano-chitosan/polyacrylamide/zinc acetate composite conducting hydrogel of high intensity and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130056068A1 (en) * | 2011-09-06 | 2013-03-07 | Korea Institute Of Science And Technology | Preparation method of flexible electrodes and flexible dye-sensitized solar cells using the same |
| CN103319739A (en) * | 2013-07-10 | 2013-09-25 | 南京林业大学 | Preparation method of chitin nanofiber/polylactic acid composite film |
| CN103342821A (en) * | 2013-07-10 | 2013-10-09 | 南京林业大学 | Method for preparing chitin nanofibre by using shrimp and crab shells |
| CN106496619A (en) * | 2016-11-01 | 2017-03-15 | 南京林业大学 | Chitin nano fiber/carbon nano-tube/poly pyrroles's pluralgel membrane preparation method |
| CN107513131A (en) * | 2017-07-05 | 2017-12-26 | 南京林业大学 | Polyacrylamide/nano-cellulose/carbon nanotube conducting plural gel prepares method |
-
2018
- 2018-07-12 CN CN201810762107.8A patent/CN109161144A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130056068A1 (en) * | 2011-09-06 | 2013-03-07 | Korea Institute Of Science And Technology | Preparation method of flexible electrodes and flexible dye-sensitized solar cells using the same |
| CN103319739A (en) * | 2013-07-10 | 2013-09-25 | 南京林业大学 | Preparation method of chitin nanofiber/polylactic acid composite film |
| CN103342821A (en) * | 2013-07-10 | 2013-10-09 | 南京林业大学 | Method for preparing chitin nanofibre by using shrimp and crab shells |
| CN106496619A (en) * | 2016-11-01 | 2017-03-15 | 南京林业大学 | Chitin nano fiber/carbon nano-tube/poly pyrroles's pluralgel membrane preparation method |
| CN107513131A (en) * | 2017-07-05 | 2017-12-26 | 南京林业大学 | Polyacrylamide/nano-cellulose/carbon nanotube conducting plural gel prepares method |
Non-Patent Citations (1)
| Title |
|---|
| 陈楚楚: "α-甲壳素纳米纤维基水凝胶的构建、性能及研究", 《中国博士学位论文全文数据库》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109897196A (en) * | 2019-02-19 | 2019-06-18 | 南京林业大学 | A kind of nano-chitosan-titanium dioxide-polyacrylamide composite catalyzing hydrogel and its preparation method and application |
| CN109897196B (en) * | 2019-02-19 | 2021-08-10 | 南京林业大学 | Nano chitin-titanium dioxide-polyacrylamide composite catalytic hydrogel and preparation method and application thereof |
| CN110483809A (en) * | 2019-07-16 | 2019-11-22 | 华南理工大学 | A kind of nano-chitosan/polyacrylamide/zinc acetate composite conducting hydrogel of high intensity and preparation method thereof |
| CN110483809B (en) * | 2019-07-16 | 2022-03-29 | 华南理工大学 | High-strength nano chitin/polyacrylamide/zinc acetate composite conductive hydrogel and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Serafin et al. | Printable alginate/gelatin hydrogel reinforced with carbon nanofibers as electrically conductive scaffolds for tissue engineering | |
| Han et al. | Gelatin-based adhesive hydrogel with self-healing, hemostasis, and electrical conductivity | |
| CN106496639B (en) | A kind of nano-cellulose-polypyrrole-polyvinyl alcohol composite conducting hydrogel and its preparation method and application | |
| Tang et al. | Autonomous self-healing, self-adhesive, highly conductive composites based on a silver-filled polyborosiloxane/polydimethylsiloxane double-network elastomer | |
| Mirabedini et al. | Fabrication of Coaxial Wet‐Spun Graphene–Chitosan Biofibers | |
| Yang et al. | Preparation and characterization of electrospun graphene/silk fibroin conductive fibrous scaffolds | |
| CN106751264A (en) | A kind of carbon nano tube nano fiber element polyvinyl alcohol composite conducting gel and its preparation method and application | |
| Sun et al. | An extremely tough and ionic conductive natural-polymer-based double network hydrogel | |
| WO2018058874A1 (en) | Gel fiber composite scaffold material formed through one step and preparation method and use thereof | |
| Zhang et al. | Stretchable, self-healing and adhesive sodium alginate-based composite hydrogels as wearable strain sensors for expansion–contraction motion monitoring | |
| CN109161144A (en) | A kind of polyacrylamide/chitin nano fiber/carbon nanotube conducting elastomer and preparation method thereof | |
| CN110218339B (en) | Beaded nano-cellulose microfiber, preparation method and application thereof in preparation of composite hydrogel | |
| Xu et al. | Fabrication of films with tailored properties by regulating the swelling of collagen fiber through pH adjustment | |
| Ghanbari et al. | Modified silicon carbide NPs reinforced nanocomposite hydrogels based on alginate-gelatin by with high mechanical properties for tissue engineering | |
| Liu et al. | Electrical signals triggered controllable formation of calcium-alginate film for wound treatment | |
| Cui et al. | Mechanical, microstructural, and rheological characterization of gelatin-dialdehyde starch hydrogels constructed by dual dynamic crosslinking | |
| Zou et al. | Temperature-sensitive poly (N-isopropylacrylamide)/konjac glucomannan/graphene oxide composite membranes with improved mechanical property, swelling capability, and degradability | |
| CN110483809A (en) | A kind of nano-chitosan/polyacrylamide/zinc acetate composite conducting hydrogel of high intensity and preparation method thereof | |
| CN107513131A (en) | Polyacrylamide/nano-cellulose/carbon nanotube conducting plural gel prepares method | |
| Kan et al. | On the electrospinning of nanostructured collagen-PVA fiber mats | |
| Ma et al. | Fabrication and detection of a novel hybrid conductive scaffold based on alginate/gelatin/carboxylated carbon nanotubes (Alg/Gel/mMWCNTs) for neural tissue engineering | |
| CN109054061B (en) | Polydimethylsiloxane/nano-cellulose composite membrane and preparation method thereof | |
| Yang et al. | Investigation into output force performance of an ionic polymer artificial muscle based on freeze-drying process | |
| Switha et al. | A novel, biocompatible nanostarch incorporated Polyaniline-Polyvinyl alcohol-Nanostarch hybrid scaffold for tissue engineering applications | |
| Teramoto et al. | Polymer foam-reinforced hydrogels inspired by plant body frameworks as high-performance soft matter |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190108 |
|
| RJ01 | Rejection of invention patent application after publication |