CN113997371A - Treatment method convenient for wicker peeling processing - Google Patents
Treatment method convenient for wicker peeling processing Download PDFInfo
- Publication number
- CN113997371A CN113997371A CN202111141930.5A CN202111141930A CN113997371A CN 113997371 A CN113997371 A CN 113997371A CN 202111141930 A CN202111141930 A CN 202111141930A CN 113997371 A CN113997371 A CN 113997371A
- Authority
- CN
- China
- Prior art keywords
- treatment
- solution
- magnetic
- peeling
- wicker
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K9/00—Chemical or physical treatment of reed, straw, or similar material
- B27K9/002—Cane, bamboo
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Abstract
The invention discloses a treatment method convenient for peeling wicker, which relates to the technical field of wicker treatment, and specifically comprises the following steps: dispersing light-responsive microcapsules and polymer magnetic microspheres formed by combining organic polymers and inorganic magnetic particles in a phosphate buffer solution, treating wickers by using the solution through an immersion method, and performing ultraviolet light source irradiation and magnetic field treatment to complete the treatment before peeling the wickers. According to the invention, the expansion and decomposition of the photoresponsive microcapsules are utilized, so that the gaps in the willow bark cambium can be enlarged, a space is provided for the offset movement of the polymer magnetic microspheres, the polymer magnetic microspheres can impact and collide cells of the cambium under the action of a magnetic field, the integrity of the cambium between the willow bark and the xylem is damaged, the bonding strength between the willow bark and the xylem is reduced, and the technical effects of reducing the willow bark removal difficulty and improving the willow bark peeling rate are achieved.
Description
Technical Field
The invention belongs to the technical field of wicker treatment, and particularly relates to a treatment method for facilitating wicker peeling processing.
Background
The salix integra is named as Osmunda japonica, Salix basjoris and Salix salicina, belongs to shrubs in Salicaceae, and is moisture-resistant. Barren resistance, high clockwork rate, thin and long wicker, high toughness, white and smooth peeled wicker, and is an excellent knitting material. The processing technology of the Chinese wolfberry wicker firstly peels off the outer skin of the Chinese wolfberry wicker, and at present, the peeling of the Chinese wolfberry wicker mainly adopts mechanical peeling. The mechanical peeling is a process of manually feeding, grabbing the wickers by a mechanical device, removing most of wicker skins by a peeling device under the action of a conveying device, and manually finishing the subsequent work. Compared with the traditional manual peeling, the mechanical peeling has the advantages that the peeling efficiency is remarkably improved, but the mechanical peeling also has the defects of poor peeling effect and more wicker damage. Therefore, before mechanical peeling, the wickers are generally treated, so that the peeling effect and the wicker peeling rate are improved.
For example, chinese patent CN2020108768838 discloses a processing method of mildew-proof and moisture-proof wicker, specifically discloses soaking the dried wicker in water, adding alkali solution and alkyl cuprammonium compound into the water, soaking for 4-7h, taking out and peeling; in the technical scheme, the wicker is soaked in the alkali liquor, and the lubricating effect of the alkali liquor is utilized, so that the separation efficiency of the willow bark and the wood part is high, and the mechanical peeling is facilitated to improve the peeling rate of the wicker; however, in practical application of the technical process, although the wicker soaked in the alkali liquor is easy to peel, part of epidermis remains on the peeled wicker, and the wicker is often cleaned and cared manually to remove residues. Therefore, in the actual production, the effect of improving the peeling rate of the wickers is general due to simple soaking treatment of the wickers in the alkali liquor, and the actual production requirement cannot be well met.
Disclosure of Invention
The invention aims to provide a treatment method for conveniently peeling wicker aiming at the existing problems.
The invention is realized by the following technical scheme:
a treatment method convenient for wicker peeling processing comprises the following steps: dispersing light-responsive microcapsules and polymer magnetic microspheres formed by combining organic polymers and inorganic magnetic particles in a phosphate buffer solution, treating wickers by using the solution through an immersion method, and performing ultraviolet light source irradiation and magnetic field treatment to complete the treatment before peeling the wickers.
Specifically, the processing method comprises the following steps:
1) 4-bromomethyl-3-nitrobenzoic acid is taken as a cross-linking agent, enters the inside of the polyethyleneimine doped calcium carbonate particles through diffusion, and forms cross-linking through the reaction of carboxyl on the cross-linking agent and benzyl bromide with amino in polyethyleneimine, so as to obtain the photoresponse microcapsule;
2) by pre-adsorption-swelling, the ferroferric oxide nano particle surface is aggregated with an initiator, styrene and acrylic acid, and a dispersion polymerization method is adopted to prepare the macromolecular magnetic microsphere;
3) dispersing the light-responsive microcapsules and the macromolecular magnetic microspheres in a phosphate buffer solution to form a treatment solution, treating the wickers by using the treatment solution through a dipping method, and performing ultraviolet light source irradiation and magnetic field treatment to complete the treatment before peeling the wickers.
According to the preferred technical scheme, in the step 2), the reaction temperature of the dispersion polymerization is 70-75 ℃, and the reaction time is 10-13 h.
According to a preferable technical scheme of the invention, in the step 2), the product obtained by dispersion polymerization is soaked by a hydrochloric acid solution.
According to a preferred technical scheme of the invention, in the step 3), the pH value of the phosphate buffer solution is 3-4.
The preferable technical proposal of the invention is that in the step 3), the irradiation intensity irradiated by the ultraviolet light source is 400-450mw/cm2The treatment time is 7-10 min.
According to the preferable technical scheme, in the step 3), the magnetic field intensity of the magnetic field treatment is 40-50mT, and the treatment time is 10-15 min.
Compared with the prior art, the invention has the following advantages:
firstly, the treatment fluid prepared in the invention consists of a light-responsive microcapsule, a high molecular magnetic microsphere and a phosphate buffer solution, wherein the light-responsive microcapsule is in the phosphate buffer solution and can be sequentially expanded and decomposed under the irradiation of an ultraviolet light source, the high molecular magnetic microsphere can generate violent excursion motion under the action of a magnetic field, the clearance in a wicker forming layer can be expanded through the expansion and decomposition of the light-responsive microcapsule, and a space is provided for the excursion motion of the high molecular magnetic microsphere along with the decomposition of the light-responsive microcapsule, so that the high molecular magnetic microsphere can perform excursion motion on the wicker forming layer under the action of the magnetic field to impact and collide cells of the forming layer, thereby causing the damage of the forming layer cell structure, leading the collapse of the forming layer structure and leading the integrity of the forming layer between the wicker skin and the wood part of the wicker to be damaged, thereby reducing the bonding strength between the willow bark and the xylem, and improving the removing easiness and the removing rate of the willow bark.
Secondly, in the invention, the prepared treatment fluid is infiltrated into the bottom layer of the willow bark by means of immersion and is gathered in the cambium, the cambium is positioned between the willow bark and the xylem and is equivalent to an interface layer between the willow bark and the xylem, and the structural integrity of the cambium is damaged by utilizing the damage of the photoresponse microcapsules and the polymer magnetic microspheres in the treatment fluid to the cambium cell structure under the action of an ultraviolet light source and a magnetic field, so that the bonding strength between the willow bark and the xylem is reduced, and the technical effect of easily removing the willow bark is achieved.
Thirdly, in the invention, because the light-responsive microcapsule needs to be expanded and decomposed under the ultraviolet light source in the phosphate buffer solution environment with low pH value, in order to prevent the inorganic magnetic particles from reacting in the phosphate buffer solution, the organic polymer and the inorganic magnetic particles are combined together, so that the inorganic magnetic particles are dispersed in the microsphere, thereby protecting the inorganic magnetic particles and avoiding the direct contact between the inorganic magnetic particles and the phosphate buffer solution, and meanwhile, the obtained polymer magnetic microsphere has excellent magnetic responsiveness and can move in a deviation way in the magnetic field environment.
Detailed Description
It is to be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure, unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
In one embodiment of the present invention, a processing method for facilitating wicker peeling processing is provided, which comprises: dispersing light-responsive microcapsules and polymer magnetic microspheres formed by combining organic polymers and inorganic magnetic particles in a phosphate buffer solution, treating wickers by using the solution through an immersion method, and performing ultraviolet light source irradiation and magnetic field treatment to complete the treatment before peeling the wickers.
Specifically, the processing method comprises the following steps:
1) 4-bromomethyl-3-nitrobenzoic acid is taken as a cross-linking agent, enters the inside of the polyethyleneimine doped calcium carbonate particles through diffusion, and forms cross-linking through the reaction of carboxyl on the cross-linking agent and benzyl bromide with amino in polyethyleneimine, so as to obtain the photoresponse microcapsule;
2) adopting nano ferroferric oxide magnetic fluid, gathering an initiator, styrene and acrylic acid on the surface of ferroferric oxide nano particles through pre-adsorption-swelling, and preparing a macromolecular magnetic microsphere by adopting a dispersion polymerization method;
3) dispersing the light-responsive microcapsules and the macromolecular magnetic microspheres in a phosphate buffer solution to form a treatment solution, treating the wickers by using the treatment solution through a dipping method, and performing ultraviolet light source irradiation and magnetic field treatment to complete the treatment before peeling the wickers.
As a specific embodiment of the present invention, in step 1), the specific preparation method of the polyethyleneimine-doped calcium carbonate microparticles is as follows:
dissolving polyethyleneimine in a calcium nitrate solution, then rapidly mixing with an equal volume of a sodium carbonate solution under magnetic stirring, stirring at room temperature, washing, and drying to obtain polyethyleneimine-doped calcium carbonate particles.
Further, in the above preparation method, the ratio of the polyethyleneimine to the calcium nitrate solution is 200-300mg:50-80 mL.
Further, in the above preparation method, the concentration of the calcium nitrate solution is 0.32 to 0.38 mol/L.
Further, in the above preparation method, the rotation speed of the magnetic stirring is 1200-1500 rpm.
Further, in the above preparation method, the concentration of the sodium carbonate solution is 0.32-0.38 mol/L.
Further, in the above preparation method, the stirring time at room temperature is 1-3 min.
Further, in the preparation method, the washing is performed by firstly centrifuging and washing for 3-5 times, and then washing for 3-5 times by using absolute ethyl alcohol.
As a specific embodiment of the present invention, in step 1), a specific preparation method of the photo-responsive microcapsule is as follows:
dispersing calcium carbonate particles doped with polyethyleneimine into a methanol solution of 4-bromomethyl-3-nitrobenzoic acid, adding N, N-diisopropylethylamine, carrying out vibration treatment at room temperature in a dark place, washing the obtained product, dispersing the washed product into a methanol solution of 4- (4, 6-dimethoxytriazine-2-yl) -4-methylmorpholine hydrochloride for continuous reaction, carrying out centrifugal washing after the reaction is finished, adding hydrochloric acid into the obtained particles, and washing the particles to be neutral after slight oscillation, thus obtaining the photoresponsive microcapsule.
Further, in the above preparation method, the ratio of the polyethyleneimine-doped calcium carbonate microparticles to the methanol solution of 4-bromomethyl-3-nitrobenzoic acid is 1.5-2.0g:60-100 mL.
Further, in the above production method, the concentration of the methanol solution of 4-bromomethyl-3-nitrobenzoic acid is 2.5 to 5.0 wt%.
Further, in the above preparation method, the mass ratio of the N, N-diisopropylethylamine to the polyethyleneimine-doped calcium carbonate fine particles is 1.8 to 2.5 g.
Further, in the preparation method, the light-shielding oscillation treatment time is 12-15 h.
Further, in the above preparation method, the washing is performed 3 to 4 times by using methanol.
Further, in the preparation method, the continuous reaction time is 12-15 h.
Further, in the above preparation method, the centrifugal washing is centrifugal washing with methanol for 2-3 times.
Further, in the above preparation method, the concentration of the hydrochloric acid is 0.1 to 0.15 mol/L.
Further, in the above preparation method, the volume ratio of the hydrochloric acid solution to the methanol solution of bromomethyl-3-nitrobenzoic acid is 8-15: 60-100.
Further, in the above preparation method, the time of the slight oscillation is 15-20 min.
As a specific embodiment of the present invention, in step 2), the specific preparation method of the nano ferroferric oxide magnetic fluid is as follows:
dispersing nano ferroferric oxide particles in a polyethylene glycol solution, fully stirring in a constant-temperature water bath, standing and layering under a magnetic field, dispersing a lower-layer product in distilled water, and drying to obtain the nano ferroferric oxide magnetic fluid.
Further, in the preparation method, the ratio of the nano ferroferric oxide to the polyethylene glycol solution is 10-18g:150-200 mL.
Furthermore, in the preparation method, the concentration of the polyethylene glycol solution is 150-180 g/L.
Furthermore, in the above preparation method, the polyethylene glycol is dispersed in the polyethylene glycol solution, and the ultrasonic dispersion is performed for 10-15min under 300-400W.
Further, in the above preparation method, the temperature of the thermostatic waterbath is 60-70 ℃.
Further, in the preparation method, the mixture is stirred in a thermostatic water bath until polyethylene glycol is physically adsorbed on the surfaces of the nano ferroferric oxide particles.
Furthermore, in the above preparation method, the amount of the distilled water is half of the volume of the polyethylene glycol solution.
Further, in the above preparation method, the lower layer product is dispersed in distilled water by 300-400W ultrasonic dispersion for 1-2h, and then stirred at 800r/min for 8-10 h.
Further, in the preparation method, the drying is vacuum drying, the temperature is 50-60 ℃, and the drying time is 10-15 h.
Further, in the preparation method, the solid content of the nano ferroferric oxide magnetic fluid is 10-13%.
As a specific embodiment of the present invention, in step 2), the initiator is azobisisobutyronitrile.
As a specific embodiment of the present invention, in step 2), a specific preparation method of the polymeric magnetic microsphere includes the following steps:
a) dissolving an initiator and a cross-linking agent in styrene and acrylic acid, uniformly mixing, adding the nano ferroferric oxide magnetic fluid, performing ultrasonic dispersion, and then sealing and standing to obtain a solution A;
b) dissolving polyvinylpyrrolidone in a mixed solvent of absolute ethyl alcohol and water, heating, adding the mixture into the solution A, and carrying out polymerization reaction under stirring;
c) and performing magnetic separation on the obtained polymerization product, soaking the polymerization product in a hydrochloric acid solution, performing suction filtration, repeatedly washing with absolute ethyl alcohol and distilled water, and drying to obtain the high-molecular magnetic microsphere.
Further, in the above preparation method, in the step a), the crosslinking agent is N, N-methylene bisacrylamide.
Further, in the above preparation method, in the step a), the ratio of the initiator, the crosslinking agent, styrene and acrylic acid is 0.1-0.3g:0.3-0.6g:10-15mL:3.0-4.5 mL.
Further, in the preparation method, in the step a), the volume ratio of the addition amount of the nano ferroferric oxide magnetic fluid to the styrene is 5-9: 10-15.
Further, in the preparation method, in the step a), the power of the ultrasonic dispersion is 200-300W, and the dispersion time is 5-10 min.
Further, in the preparation method, in the step a), the sealing and standing temperature is 3-6 ℃, and the standing time is 20-25 h.
Further, in the above preparation method, in the step b), the ratio of the polyvinylpyrrolidone to the mixed solvent is 2.0-3.2g:100 mL.
Further, in the above preparation method, in the step b), the mixed solvent is composed of absolute ethyl alcohol and water in a volume ratio of 2-3: 1.
Further, in the above preparation method, in the step b), the volume ratio of the mixed solvent to styrene is 100: 10-15.
Further, in the above preparation method, in the step b), the temperature of the temperature rise is 70 to 75 ℃.
Further, in the above preparation method, in the step b), the stirring rotation speed is 130-160 r/min.
Further, in the preparation method, in the step b), the temperature of the polymerization reaction is 70-75 ℃, and the reaction time is 10-13 h.
Further, in the above preparation method, in the step c), the concentration of the hydrochloric acid solution is 1.0 to 1.5 mol/L.
Further, in the above preparation method, in the step c), the volume ratio of the hydrochloric acid solution to the mixed solvent is 50-80: 100.
Further, in the above preparation method, in the step c), the soaking time is 45 to 50 hours.
Further, in the preparation method, in the step c), the drying is vacuum drying at the temperature of 50-60 ℃ for 20-25 h.
As a specific embodiment of the invention, in the step 3), the ratio of the photo-responsive microcapsule, the polymer magnetic microsphere and the phosphate buffer solution is 2.3-4.5g:1.2-2.6g: 200-.
In a specific embodiment of the present invention, in step 3), the pH of the phosphate buffer is 3 to 4.
In one embodiment of the present invention, in step 3), the wicker is further dried before being dipped.
Further, the drying treatment temperature is 60-70 ℃, and the drying time is 3-5 h.
As a specific embodiment of the present invention, in step 3), the dipping treatment is a vacuum dipping treatment, and the method comprises the following steps: drying wicker, placing into a reactor, vacuumizing the infiltration treatment liquid, and continuously vacuum-dipping.
Further, the vacuum impregnation treatment is specifically performed as follows: putting the dried wicker into a reactor, vacuumizing for 10-15min, vacuumizing the infiltration treatment liquid for 20-30min, and then continuously vacuum-dipping for 1-2 h.
As a specific embodiment of the present invention, in step 3), the irradiation intensity of the ultraviolet light source irradiation is 400-450mw/cm2The treatment time is 7-10 min.
In a specific embodiment of the invention, in the step 3), the magnetic field intensity of the magnetic field treatment is 40-50mT, and the treatment time is 10-15 min.
The invention will be further explained and illustrated with reference to specific examples.
Example 1
A treatment method convenient for wicker peeling processing comprises the following steps:
1) dissolving 200mg of PEI in 50mL0.32mol/L calcium nitrate solution, rapidly mixing with 0.32mol/L sodium carbonate solution with the same volume under magnetic stirring at 1200rpm, stirring for 1min at room temperature, then washing for 3 times by centrifugation and washing for 3 times by absolute ethyl alcohol, and drying to obtain PEI-doped calcium carbonate particles;
2) dispersing 1.5g of PEI-doped calcium carbonate particles in 60mL2.5wt% of methanol solution of 4-bromomethyl-3-nitrobenzoic acid, adding 1.8g of N, N-diisopropylethylamine, carrying out light-shielding oscillation reaction for 12h at room temperature, washing the obtained product particles with methanol for 3 times, dispersing the washed product particles in 50mL of 4- (4, 6-dimethoxytriazine-2-yl) -4-methylmorpholine hydrochloride methanol solution, continuing to react for 12h, carrying out methanol centrifugal washing for 2 times after the reaction is finished, adding 8mL0.1mol/L hydrochloric acid solution into the obtained particles, slightly oscillating for 15min, and finally washing with water to be neutral to obtain the light-responsive microcapsule;
3) weighing 10g of nano ferroferric oxide particles, adding the nano ferroferric oxide particles into 150mL of 150g/L polyethylene glycol solution, performing ultrasonic dispersion for 10min at 300W, fully stirring in a constant-temperature water bath at 60 ℃ until polyethylene glycol is physically adsorbed on the surfaces of the nano ferroferric oxide particles, standing and layering the nano ferroferric oxide particles under a magnetic field, adding a lower-layer product into 75mL of distilled water, performing ultrasonic dispersion for 1h at 300W, stirring for 8h at 500r/min, and then performing vacuum drying for 10h at 50 ℃ to obtain a nano ferroferric oxide magnetic fluid with 10% of solid content;
4) dissolving 0.1g of initiator azobisisobutyronitrile and 0.3g of cross-linking agent N, N-methylene bisacrylamide in 10mL of styrene and 3.0mL of acrylic acid, uniformly mixing, adding 5mL of nano ferroferric oxide magnetic fluid, performing ultrasonic dispersion for 5min by 200W, sealing, standing at 3 ℃ for 20h to obtain solution A, dissolving 2.0g of polyvinylpyrrolidone in 100mL of mixed solvent of absolute ethyl alcohol and water with the volume ratio of 2:1, heating to 70 ℃, adding the solution A, performing polymerization reaction at 70 ℃ for 10h at 130r/min, performing magnetic separation on the obtained polymerization product, soaking for 45h by using 50mL of 1.0mol/L hydrochloric acid solution, performing suction filtration, repeatedly washing by using absolute ethyl alcohol and distilled water, and performing vacuum drying at 50 ℃ for 20h to obtain high-molecular magnetic microspheres;
5) dispersing 2.3g of photoresponsive microcapsules and 1.2g of macromolecular magnetic microspheres in 200ml of phosphate buffer solution with the pH value of 3 to obtain a treatment solution, placing wickers in an environment of 60 ℃ for drying for 3h, then placing the dried wickers in a reactor, vacuumizing for 10min, vacuumizing the impregnation treatment solution for 20min, then continuously vacuum impregnating for 1h, taking out the impregnated wood, draining, and then placing the impregnated wood under an ultraviolet light source (365 nm, UVEC-4II system) for irradiating for 7min with the irradiation intensity of 400mw/cm2And (3) moving the wickers after the irradiation treatment to an electromagnetic field, and treating for 10min under a 40mT magnetic field to finish the processing treatment before the wickers are peeled.
Example 2
A treatment method convenient for wicker peeling processing comprises the following steps:
1) dissolving 260mg of PEI in 70mL0.35mol/L calcium nitrate solution, rapidly mixing with 0.35mol/L sodium carbonate solution with the same volume under the magnetic stirring of 1300rpm, stirring for 2min at room temperature, then washing for 4 times by centrifugation and 5 times by absolute ethyl alcohol, and drying to obtain PEI-doped calcium carbonate particles;
2) dispersing 1.8g of PEI-doped calcium carbonate particles into 80mL3.6wt% of methanol solution of 4-bromomethyl-3-nitrobenzoic acid, adding 2.3g of N, N-diisopropylethylamine, carrying out light-shielding oscillation reaction for 13h at room temperature, washing the obtained product particles for 4 times with methanol, dispersing the washed product particles into 65mL of 4- (4, 6-dimethoxytriazine-2-yl) -4-methylmorpholine hydrochloride methanol solution, continuing to react for 13h, carrying out methanol centrifugal washing for 2 times after the reaction is finished, adding 12mL0.15mol/L hydrochloric acid solution into the obtained particles, slightly oscillating for 20min, and finally washing to be neutral to obtain the light-responsive microcapsule;
3) weighing 13g of nano ferroferric oxide particles, adding the nano ferroferric oxide particles into 180mL of 160g/L polyethylene glycol solution, performing ultrasonic dispersion for 10min at 400W, fully stirring the mixture in a constant-temperature water bath at 65 ℃ until polyethylene glycol is physically adsorbed on the surfaces of the nano ferroferric oxide particles, standing and layering the mixture under a magnetic field, adding a lower-layer product into 90mL of distilled water, performing ultrasonic dispersion for 1h at 400W, stirring the mixture for 10h at 5800r/min, and then performing vacuum drying at 60 ℃ for 12h to obtain the nano ferroferric oxide magnetic fluid with the solid content of 11%;
4) dissolving 0.2g of initiator azobisisobutyronitrile and 0.5g of cross-linking agent N, N-methylene bisacrylamide in 15mL of styrene and 4.0mL of acrylic acid, uniformly mixing, adding 7mL of nano ferroferric oxide magnetic fluid, performing ultrasonic dispersion for 8min by 300W, sealing, standing at 5 ℃ for 25h to obtain solution A, dissolving 2.7g of polyvinylpyrrolidone in 100mL of mixed solvent of absolute ethyl alcohol and water with the volume ratio of 3:1, heating to 75 ℃, adding the solution A, performing polymerization reaction at 75 ℃ for 12h at 150r/min, performing magnetic separation on the obtained polymerization product, soaking for 45h by using 80mL of 1.0mol/L hydrochloric acid solution, performing suction filtration, repeatedly washing by using absolute ethyl alcohol and distilled water, and performing vacuum drying at 60 ℃ for 23h to obtain high-molecular magnetic microspheres;
5) dispersing 3.5g of photoresponsive microcapsules and 2.5g of macromolecular magnetic microspheres in 260ml of phosphate buffer solution with the pH value of 3.5 to obtain a treatment solution, drying wicker at 65 ℃ for 5h, then putting the dried wicker into a reactor, vacuumizing for 15min, vacuumizing the impregnation treatment solution for 30min, continuously vacuum impregnating for 1h, taking out the impregnated wood, draining, and irradiating under an ultraviolet light source (365 nm, UVEC-4II system) for 10min at the irradiation intensity of 400mw/cm2And (3) moving the wickers after the irradiation treatment to an electromagnetic field, and treating for 15min under a 45mT magnetic field to finish the processing treatment before the wickers are peeled.
Example 3
A treatment method convenient for wicker peeling processing comprises the following steps:
1) dissolving 300mgPEI in 80mL0.38mol/L calcium nitrate solution, then rapidly mixing with 0.38mol/L sodium carbonate solution with the same volume under magnetic stirring at 1500rpm, stirring for 3min at room temperature, then washing for 5 times by centrifugation and 5 times by absolute ethyl alcohol, and drying to obtain PEI-doped calcium carbonate particles;
2) dispersing 2.0g of PEI-doped calcium carbonate particles into 100mL of 5.0wt% methanol solution of 4-bromomethyl-3-nitrobenzoic acid, adding 2.5g of N, N-diisopropylethylamine, carrying out light-shielding oscillation reaction for 15h at room temperature, washing the obtained product particles for 4 times with methanol, dispersing the washed product particles into 80mL of 4- (4, 6-dimethoxytriazine-2-yl) -4-methylmorpholine hydrochloride methanol solution, continuing to react for 15h, carrying out methanol centrifugal washing for 3 times after the reaction is finished, adding 15mL of 0.15mol/L hydrochloric acid solution into the obtained particles, slightly oscillating for 20min, and finally washing to be neutral to obtain the light-responsive microcapsule;
3) weighing 18g of nano ferroferric oxide particles, adding the nano ferroferric oxide particles into 200mL of 180g/L polyethylene glycol solution, carrying out ultrasonic dispersion for 15min at 400W, fully stirring in a constant-temperature water bath at 70 ℃ until polyethylene glycol is physically adsorbed on the surfaces of the nano ferroferric oxide particles, standing and layering the nano ferroferric oxide particles under a magnetic field, adding a lower-layer product into 100mL of distilled water, carrying out ultrasonic dispersion for 2h at 400W, stirring for 10h at 800r/min, and then carrying out vacuum drying for 15h at 60 ℃ to obtain a nano ferroferric oxide magnetic fluid with 13% of solid content;
4) dissolving 0.3g of initiator azobisisobutyronitrile and 0.6g of cross-linking agent N, N-methylene bisacrylamide in 15mL of styrene and 4.5mL of acrylic acid, uniformly mixing, adding 9mL of nano ferroferric oxide magnetic fluid, performing ultrasonic dispersion for 10min by 300W, sealing, standing at 6 ℃ for 25h to obtain solution A, dissolving 3.2g of polyvinylpyrrolidone in 100mL of mixed solvent of absolute ethyl alcohol and water with the volume ratio of 3:1, heating to 75 ℃, adding the solution A, performing polymerization reaction at 75 ℃ for 13h at 160r/min, performing magnetic separation on the obtained polymerization product, soaking for 50h by using 80mL1.5mol/L of hydrochloric acid solution, performing suction filtration, repeatedly washing by using absolute ethyl alcohol and distilled water, and performing vacuum drying at 60 ℃ for 25h to obtain the macromolecular magnetic microsphere;
5) dispersing 4.5g of photoresponsive microcapsules and 2.6g of macromolecular magnetic microspheres in 260ml of phosphate buffer solution with the pH value of 4 to obtain a treatment solution, placing wickers in an environment of 70 ℃ for drying for 5 hours, then placing the dried wickers in a reactor, vacuumizing for 15 minutes, vacuumizing the impregnation treatment solution for 30 minutes, continuously vacuum impregnating for 2 hours, taking out the impregnated wood, draining, and then placing the impregnated wood under an ultraviolet light source (365 nm, UVEC-4II system) for irradiating for 10 minutes with the irradiation intensity of 450mw/cm2And (3) moving the wickers after the irradiation treatment to an electromagnetic field, and treating for 15min under a magnetic field of 50mT to finish the processing treatment before the wickers are peeled.
Control group
And (3) drying the wicker, soaking the wicker in a sodium hydroxide solution with the concentration of 600mg/L, taking out the wicker after soaking for 5 hours, and obtaining a wicker sample.
Test experiments
1.1 peeling apparatus
An automatic willow barking machine (Shandong Linyi board spring town) from honest machinery factory.
1.2 Experimental parameters
The feed rate was maintained at 1 m/s.
1.3 peeling work
Starting a power source of the peeling equipment, manually feeding the wicker samples provided by the examples 1-3 and the control group, finishing peeling of the wicker samples through the equipment, and counting the peeling efficiency and quality of the wicker samples.
1.4 test results and analysis
The peeling rate of the willow sample provided in the embodiment 1 is 99.82%, the production efficiency is 175kg/h, the peeled willow sample is smooth and complete, the damage rate is zero, and no obvious residue is found;
the willow bark peeling rate of the willow sample provided in the embodiment 2 is 99.87%, the production efficiency is 177kg/h, the willow sample is smooth and complete in peeling after peeling, the damage rate is zero, and no obvious residue is found;
the willow bark peeling rate of the willow sample provided in the embodiment 3 is 99.76%, the production efficiency is 174kg/h, the willow sample is smooth and complete in peeling after peeling, the damage rate is zero, and no obvious residue is found;
the peeling rate of the wicker sample provided by the control group is 93.52%, the production efficiency is 156kg/h, and the wicker sample is smoother, more complete in peeling, low in damage rate and small in residue after peeling.
According to the test results, the treatment process provided by the invention has the technical effects of reducing the difficulty in removing the willow bark and improving the willow bark peeling rate by processing the willow twigs, so that the willow bark peeling rate reaches over 99.7%, the production effect is obviously improved, the manual operation of cleaning and nursing is omitted, and the production cost is reduced.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention.
Claims (7)
1. A treatment method convenient for wicker peeling processing is characterized by comprising the following steps: dispersing light-responsive microcapsules and polymer magnetic microspheres formed by combining organic polymers and inorganic magnetic particles in a phosphate buffer solution, treating wickers by using the solution through an immersion method, and performing ultraviolet light source irradiation and magnetic field treatment to complete the treatment before peeling the wickers.
2. The processing method for facilitating wicker peeling processing as claimed in claim 1, wherein the specific processing method comprises the following steps:
1) 4-bromomethyl-3-nitrobenzoic acid is taken as a cross-linking agent, enters the inside of the polyethyleneimine doped calcium carbonate particles through diffusion, and forms cross-linking through the reaction of carboxyl on the cross-linking agent and benzyl bromide with amino in polyethyleneimine, so as to obtain the photoresponse microcapsule;
2) adopting nano ferroferric oxide magnetic fluid, gathering an initiator, styrene and acrylic acid on the surface of ferroferric oxide nano particles through pre-adsorption-swelling, and preparing a macromolecular magnetic microsphere by adopting a dispersion polymerization method;
3) dispersing the light-responsive microcapsules and the macromolecular magnetic microspheres in a phosphate buffer solution to form a treatment solution, treating the wickers by using the treatment solution through a dipping method, and performing ultraviolet light source irradiation and magnetic field treatment to complete the treatment before peeling the wickers.
3. The method as claimed in claim 2, wherein the dispersion polymerization is carried out at 70-75 deg.C for 10-13h in step 2).
4. The method as claimed in claim 2, wherein the dispersion polymerization product obtained in step 2) is further soaked in hydrochloric acid solution.
5. The method of claim 2, wherein the phosphate buffer of step 3) has a pH of 3-4.
6. The method as claimed in claim 2, wherein the irradiation intensity of the UV light source in step 3) is 400-450mw/cm2The treatment time is 7-10 min.
7. The method as claimed in claim 2, wherein in step 3), the magnetic field strength of the magnetic field treatment is 40-50mT, and the treatment time is 10-15 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111141930.5A CN113997371A (en) | 2021-09-28 | 2021-09-28 | Treatment method convenient for wicker peeling processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111141930.5A CN113997371A (en) | 2021-09-28 | 2021-09-28 | Treatment method convenient for wicker peeling processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113997371A true CN113997371A (en) | 2022-02-01 |
Family
ID=79921827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111141930.5A Pending CN113997371A (en) | 2021-09-28 | 2021-09-28 | Treatment method convenient for wicker peeling processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113997371A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380559A (en) * | 2008-10-17 | 2009-03-11 | 李勇 | Fe4O3 surface modification method and preparation method of polystyrene magnetic microsphere |
| CN110000883A (en) * | 2019-04-01 | 2019-07-12 | 阜南县金源柳木工艺品有限公司 | A kind of softening peeling method of wicker |
-
2021
- 2021-09-28 CN CN202111141930.5A patent/CN113997371A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380559A (en) * | 2008-10-17 | 2009-03-11 | 李勇 | Fe4O3 surface modification method and preparation method of polystyrene magnetic microsphere |
| CN110000883A (en) * | 2019-04-01 | 2019-07-12 | 阜南县金源柳木工艺品有限公司 | A kind of softening peeling method of wicker |
Non-Patent Citations (2)
| Title |
|---|
| HUIYING LI: "Photo-responsive polyethyleneimine microcapsules cross-linked by ortho-nitrobenzyl derivatives", 《JOURNAL OF COLLOID AND INTERFACE SCIENCE》 * |
| 程成等: "苯乙烯-丙烯酸正丁酯共聚物/Fe3O4复合材料的制备和表征", 《中国塑料》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110227283B (en) | Preparation method of super-hydrophobic lignin sponge with oil-water separation function | |
| CN102643357B (en) | Method for preparing sodium carboxymethylcellulose by abandoned cotton fabrics | |
| US11731104B2 (en) | Preparation method for biomass-based hyperbranched adsorption material | |
| CN105064045A (en) | Method for carrying out enzymatic fibroin functional modification based on grafted polypeptide | |
| CN110028682B (en) | Method for preparing cellulose-based hydrogel by pretreating bagasse bleaching pulp through mechanical ball milling | |
| CN106832131B (en) | A kind of radiation method modified fibre chelating agent and preparation method thereof | |
| CN115608418B (en) | Photocatalysis synergistic adsorption material based on gangue and preparation method and application thereof | |
| CN110106742A (en) | A kind of slow-release alkaline molecular sieve deacidification agent and the preparation method and application thereof | |
| CN113997371A (en) | Treatment method convenient for wicker peeling processing | |
| RU2495830C1 (en) | Method of extracting ions of heavy metals from aqueous solutions | |
| CN107913681A (en) | A kind of stalk fibre composite adsorbing material and preparation method thereof | |
| Mun et al. | Adsorption of metal and uranyl ions onto amidoximated Pinus densiflora bark | |
| CN111205315B (en) | Preparation method and application of wood flame retardant with high anti-loss property | |
| CN110508260A (en) | A kind of preparation method of lead ion trace composite hollow microballoon | |
| CN107099046A (en) | A kind of method that fibroin base biomimetic mineralization material is prepared by grafting vinyl monomers | |
| CN114480527A (en) | Lignocellulose raw material pretreatment method and application | |
| TWI778720B (en) | Method for disposing of cotton-containing fabric waste | |
| RU2351548C1 (en) | Method for extraction of heavy metal ions from aqueous solutions | |
| CN115818997A (en) | Organic amine-based rapid carbonization method for construction waste recycled aggregate | |
| CN105348553B (en) | A kind of cellophane preparation method having catalytic activity | |
| CN114653380A (en) | Preparation method of spherical sludge-based solid acid catalyst, product and application thereof | |
| CN113698624A (en) | Method for improving amination modification efficiency or phenolic hydroxyl content of alkali lignin | |
| CN112473627A (en) | Tannin composite adsorbent and preparation method thereof | |
| CN113274992A (en) | Preparation method of original fiber aerogel for oil absorption | |
| CN109267357B (en) | Real silk antibacterial finishing method based on enzymatic conversion and grafting |
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: 20220201 |
|
| RJ01 | Rejection of invention patent application after publication |