CN109183495A - A kind of preparation method of the high grade of transparency cellophane paper using bismuth-containing material - Google Patents
A kind of preparation method of the high grade of transparency cellophane paper using bismuth-containing material Download PDFInfo
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- CN109183495A CN109183495A CN201811119560.3A CN201811119560A CN109183495A CN 109183495 A CN109183495 A CN 109183495A CN 201811119560 A CN201811119560 A CN 201811119560A CN 109183495 A CN109183495 A CN 109183495A
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- bismuth
- cellulose
- transparency
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- preparation
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- 229910052797 bismuth Inorganic materials 0.000 title claims abstract description 69
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 229920000298 Cellophane Polymers 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 title claims abstract description 35
- 229920002678 cellulose Polymers 0.000 claims abstract description 78
- 239000001913 cellulose Substances 0.000 claims abstract description 78
- 239000000725 suspension Substances 0.000 claims abstract description 54
- 238000007731 hot pressing Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 229920001131 Pulp (paper) Polymers 0.000 claims description 21
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- BPXKZEMBEZGUAH-UHFFFAOYSA-N 2-(chloromethoxy)ethyl-trimethylsilane Chemical compound C[Si](C)(C)CCOCCl BPXKZEMBEZGUAH-UHFFFAOYSA-N 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 239000004809 Teflon Substances 0.000 claims description 7
- 229920006362 Teflon® Polymers 0.000 claims description 7
- 238000005119 centrifugation Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000012982 microporous membrane Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000006228 supernatant Substances 0.000 claims description 7
- 238000010792 warming Methods 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000004061 bleaching Methods 0.000 claims description 4
- RKMGAJGJIURJSJ-UHFFFAOYSA-N 2,2,6,6-Tetramethylpiperidine Substances CC1(C)CCCC(C)(C)N1 RKMGAJGJIURJSJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 3
- 239000011121 hardwood Substances 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 3
- 230000003746 surface roughness Effects 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000011049 filling Methods 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 abstract description 2
- 230000000877 morphologic effect Effects 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 12
- 239000011734 sodium Substances 0.000 description 12
- 229910052708 sodium Inorganic materials 0.000 description 12
- 238000002474 experimental method Methods 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 6
- 241000209094 Oryza Species 0.000 description 5
- 235000007164 Oryza sativa Nutrition 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 235000009566 rice Nutrition 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 125000001309 chloro group Chemical group Cl* 0.000 description 3
- 239000012458 free base Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 3
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 3
- 229920005610 lignin Polymers 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 206010016590 Fibrin deposition on lens postoperative Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012978 lignocellulosic material Substances 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F13/00—Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web, for fibreboard production
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F13/00—Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web, for fibreboard production
- D21F13/10—Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web, for fibreboard production using board presses
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/08—Mechanical or thermomechanical pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
- D21H11/20—Chemically or biochemically modified fibres
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Biochemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Paper (AREA)
Abstract
The present invention relates to papermaking field of new material preparation, particularly with regard to a kind of preparation method of high grade of transparency cellophane paper using bismuth-containing material；A kind of preparation method of the high grade of transparency cellophane paper using bismuth-containing material disclosed in the method for the present invention, the present invention has been prepared into a kind of bismuth-containing nano-cellulose suspension, with the porous structure of this kind of bismuth-containing nano-cellulose suspension filling timber network of fibers, the light penetration improved, by hot pressing, prepare in addition to a kind of high grade of transparency cellophane paper using bismuth-containing material.This cellophane paper not only has excellent optical property and surface roughness, at the same also retain traditional paper can writing quality, the preparation with Freehandhand-drawing conducting channel device can be used；With excellent morphological stability, meet the requirement of subsequent aqueous coating.
Description
Technical field
The present invention relates to field of material preparation, particularly with regard to a kind of preparation of high grade of transparency cellophane paper using bismuth-containing material
Method.
Background technique
Cellophane paper belongs to a kind of speciality paper, because being widely used in excellent optical property and beautiful visual effect
The fields such as label, decoration, food packaging, insulation are more expected to replace plastic film to prepare next-generation " green " electronic device；Cause
The advantage of its lightweight, low cost, and the excellent material applied to light transmission building and solar battery.
CN106917311A discloses a kind of preparation method of cellophane paper, belongs to Nano/micron fine structure material and its system
Standby technology.The cellophane paper of invention meaning refers to that be made of nanoscale and micron order lignocellulosic material, transparency is greater than
70% fibrous material.Preparation method are as follows: wood materials are processed into sawdust or wood powder；Then by these sawdusts or wood powder with
Liquor natrii hypochloritis's hybrid reaction certain time at a certain temperature removes the lignin in wood materials；It is cleaned multiple times with water
Removal reaction terminates remaining sodium hypochlorite, then the slurry after cleaning is removed most of water；The production that will be obtained through above-mentioned steps
Object is placed in press, and pressure maintaining for a period of time, removes remaining moisture under a certain pressure, obtains cellophane paper.The method of the invention
With applicable wood materials type, more, at low cost, resourceful, easily operated, environmental-friendly, high production, does not need complexity
Equipments and devices, can high-volume the characteristics of quickly producing.
CN106012667A discloses a kind of holocellulos cellophane paper and preparation method thereof, the paper obtained with traditional paper-making process
It opens or plant fiber is network skeleton, using the homogeneous cellulose solution of certain solubility as filler and dissolving medium, uniformly apply
Cloth fills internal void and dissolution cellulose side chain or portion to paper or plant fibre surface in a manner of high efficiency, low cost
Divide cellulose, reduces porosity；Flatness is improved by later period finishing process, forms integrated cellulose composite construction, into
And a kind of completely new inexpensive holocellulos cellophane paper is prepared, it is expected to realize large-scale roll-to-roll industrialized production.
CN106915121A discloses a kind of preparation method with surface micro-structure cellophane paper, and it is micro- to belong to Nano/micron
Structural material and its technology of preparing.The invention the preparation method comprises the following steps: timber is first cut into veneer, veneer is then placed in hypochlorous acid
A period of time is reacted in sodium solution, to remove lignin；After lignin removal, processed veneer is put in micro-structure
In template, while padding above veneer with filter membrane, and the pattern of template is transferred to cellophane paper table by way of mechanical pressurization
Face, to obtain the cellophane paper that surface has micro-structure.The method of the invention compared with other existing methods, have it is at low cost,
The features such as preparation step is simple, preparation time is short.
There are mainly three types of the production methods of the cellophane paper of the above patent and prior art preparation: filtering, extrusion molding and
The transparency of dipping, the paper product of production is generally less than 80%, and the surface roughness of paper is higher, is not able to satisfy for example
The requirement in the fields such as electronic device limits the application range of cellophane paper.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of preparation sides of high grade of transparency cellophane paper using bismuth-containing material
Method.
A kind of preparation method of the high grade of transparency cellophane paper using bismuth-containing material, technology of preparing scheme are as follows:
According to mass fraction, disperses 0.5-2 parts of wood pulp cellulose in 80-150 parts of deionized water, 50-80 is then added
The bismuth-containing nano-cellulose suspension of part, ultrasonic disperse 20-30min, it is spare to form suspension after mixing evenly；Then it separately takes
20-40 parts of bismuth-containing nano-cellulose suspension forms one layer of nano-cellulose layer using filtering with microporous membrane；Then it will mix
Suspension continuation is filtered on the miillpore filter, forms cellulose layer；Cellulose layer is stripped down from miillpore filter, using clear
Clean smooth mold is put into progress hot pressing 30-60min on 50-70 DEG C of hot press, is then turned off the heating system of hot press,
It is cooling under dwell condition, a kind of high grade of transparency cellophane paper using bismuth-containing material can be obtained.
The bismuth-containing nano-cellulose suspension is prepared in accordance with the following methods:
According to mass fraction, disperses the wood pulp cellulose of 2-10 in 100-200 parts of dimethyl sulfoxide, 0.8- is then added
1.8 parts of sodium hydroxide, 0.2-1 parts of 2- (trimethylsilyl) ethoxymethyl chlorine, 0.01-0.05 parts of oxygen -2,2,6 4-,
6- tetramethyl piperidine -1- oxygen radical and 0.1-0.5 parts of bismuth hexafluoro -2,4- pentanedionate, are stirred to react by 50-60 DEG C of temperature control
40-60min；5-15 parts of sodium hypochlorite is added in reaction kettle after completing reaction, is warming up to 70-80 DEG C, reacts 5-10h；
It filters after completing reaction, is washed three times with a large amount of deionized water；Then fiber is configured to the suspension of 0.5%-5%, used
High pressure homogenizer, it is homogeneous, take supernatant that the bismuth-containing nano-cellulose suspension can be obtained after centrifugation.
The wood pulp cellulose is bleaching needle-point leaf pulp or hardwood pulp or cotton pulp.
The miillpore filter is the teflon membrane filter that aperture is 0.3-0.8 μm.
The hot press hot pressing pressure is 3-7MPa.
A kind of preparation method of the high grade of transparency cellophane paper using bismuth-containing material disclosed in the method for the present invention, the present invention will be wooden
Pulp fibres are scattered in dimethyl sulfoxide, then in sodium hydroxide, 2- (trimethylsilyl) ethoxymethyl chlorine, 4- oxygen -2,2,
A period of time is handled in 6,6- tetramethyl piperidine -1- oxygen radical and the environment of bismuth hexafluoro -2,4- pentanedionate；Then with time chlorine
Sour sodium and fibrin reaction have been prepared into a kind of nano-cellulose suspension containing bismuth complex, with this kind of bismuth-containing nanofiber
The porous structure of plain suspension filling timber network of fibers, the light penetration improved, by hot pressing, preparation makes in addition to one kind
With the high grade of transparency cellophane paper of bismuth-containing material.This cellophane paper not only has excellent optical property and surface roughness, simultaneously
Also retain traditional paper can writing quality, the preparation with Freehandhand-drawing conducting channel device can be used；With excellent form stable
Property, meet the requirement of subsequent aqueous coating.
Specific embodiment
The invention is described further below by specific embodiment:
Embodiment 1
A kind of preparation method of the high grade of transparency cellophane paper using bismuth-containing material, technology of preparing scheme are as follows:
It according to mass fraction, disperses 1.3 parts of wood pulp cellulose in 120 parts of deionized water, 60 parts of bismuth-containing is then added
Nano-cellulose suspension, ultrasonic disperse 25min, it is spare to form suspension after mixing evenly；Then 30 parts of bismuth-containing is separately taken to receive
Rice cellulose suspension forms one layer of nano-cellulose layer using filtering with microporous membrane；Then suspension is continued in the micropore
It is filtered on filter membrane, forms cellulose layer；Cellulose layer is stripped down from miillpore filter, is put into using the mold for cleaning smooth
Hot pressing 40min is carried out on to 60 DEG C of hot presses, is then turned off the heating system of hot press, and cooling under dwell condition can obtain
To a kind of high grade of transparency cellophane paper using bismuth-containing material.
The bismuth-containing nano-cellulose suspension is prepared in accordance with the following methods:
It according to mass fraction, disperses 5 wood pulp cellulose in 150 parts of dimethyl sulfoxide, 1.2 parts of hydroxide is then added
Sodium, 0.6 part of 2- (trimethylsilyl) ethoxymethyl chlorine, 0.03 part of 4- oxygen -2,2,6,6- tetramethyl piperidine -1- oxygen are free
Base and 0.3 part of bismuth hexafluoro -2,4- pentanedionate, are stirred to react 50min by 55 DEG C of temperature control；It completes 10 parts of secondary chlorine after reacting
Sour sodium is added in reaction kettle, is warming up to 75 DEG C, reacts 8h；It filters after completing reaction, is washed three times with a large amount of deionized water；
Then fiber is configured to 2.5% suspension, it is homogeneous using high pressure homogenizer, take supernatant can be obtained after centrifugation described
Bismuth-containing nano-cellulose suspension.
The wood pulp cellulose is bleaching needle-point leaf pulp.
The miillpore filter is the teflon membrane filter that aperture is 0.5 μm.
The hot press hot pressing pressure is 5MPa.
The transparency of the cellophane paper of this experiment preparation is 91.6%, tensile strength 102.7MPa.
Embodiment 2
A kind of preparation method of the high grade of transparency cellophane paper using bismuth-containing material, technology of preparing scheme are as follows:
It according to mass fraction, disperses 0.5 part of wood pulp cellulose in 80 parts of deionized water, 50 parts of bismuth-containing is then added and receives
Rice cellulose suspension, ultrasonic disperse 20min, it is spare to form suspension after mixing evenly；Then 20 parts of bismuth-containing nanometer is separately taken
Cellulose suspension forms one layer of nano-cellulose layer using filtering with microporous membrane；Then suspension is continued to filter in the micropore
It is filtered on film, forms cellulose layer；Cellulose layer is stripped down from miillpore filter, is put into using the mold for cleaning smooth
Hot pressing 30min is carried out on 50 DEG C of hot press, is then turned off the heating system of hot press, and cooling under dwell condition can be obtained
A kind of high grade of transparency cellophane paper using bismuth-containing material.
The bismuth-containing nano-cellulose suspension is prepared in accordance with the following methods:
It according to mass fraction, disperses 2 wood pulp cellulose in 100 parts of dimethyl sulfoxide, 0.8 part of hydroxide is then added
Sodium, 0.2 part of 2- (trimethylsilyl) ethoxymethyl chlorine, 0.01 part of 4- oxygen -2,2,6,6- tetramethyl piperidine -1- oxygen are free
Base and 0.1 part of bismuth hexafluoro -2,4- pentanedionate, are stirred to react 40min by 50 DEG C of temperature control；It completes 5 parts of hypochlorous acid after reacting
Sodium is added in reaction kettle, is warming up to 70 DEG C, reacts 5h；It filters after completing reaction, is washed three times with a large amount of deionized water；So
Fiber is configured to 0.5% suspension afterwards, it is homogeneous using high pressure homogenizer, take supernatant that described contain can be obtained after centrifugation
Bismuth nano-cellulose suspension.
The wood pulp cellulose is hardwood pulp.
The miillpore filter is the teflon membrane filter that aperture is 0.3 μm.
The hot press hot pressing pressure is 3MPa.
The transparency of the cellophane paper of this experiment preparation is 89.7%, tensile strength 98.3MPa.
Embodiment 3
A kind of preparation method of the high grade of transparency cellophane paper using bismuth-containing material, technology of preparing scheme are as follows:
It according to mass fraction, disperses 2 parts of wood pulp cellulose in 150 parts of deionized water, 80 parts of bismuth-containing is then added and receives
Rice cellulose suspension, ultrasonic disperse 30min, it is spare to form suspension after mixing evenly；Then 40 parts of bismuth-containing nanometer is separately taken
Cellulose suspension forms one layer of nano-cellulose layer using filtering with microporous membrane；Then suspension is continued to filter in the micropore
It is filtered on film, forms cellulose layer；Cellulose layer is stripped down from miillpore filter, is put into using the mold for cleaning smooth
Hot pressing 60min is carried out on 70 DEG C of hot press, is then turned off the heating system of hot press, and cooling under dwell condition can be obtained
A kind of high grade of transparency cellophane paper using bismuth-containing material.
The bismuth-containing nano-cellulose suspension is prepared in accordance with the following methods:
It according to mass fraction, disperses 10 wood pulp cellulose in 200 parts of dimethyl sulfoxide, 1.8 parts of hydrogen-oxygen is then added
It is free to change sodium, 1 part of 2- (trimethylsilyl) ethoxymethyl chlorine, 0.05 part of 4- oxygen -2,2,6,6- tetramethyl piperidine -1- oxygen
Base and 0.5 part of bismuth hexafluoro -2,4- pentanedionate, are stirred to react 60min by 60 DEG C of temperature control；It completes 15 parts of secondary chlorine after reacting
Sour sodium is added in reaction kettle, is warming up to 80 DEG C, reacts 10h；It is filtered after completing reaction, washs three with a large amount of deionized water
It is secondary；Then fiber is configured to 5% suspension, it is homogeneous using high pressure homogenizer, take supernatant can be obtained after centrifugation described
Bismuth-containing nano-cellulose suspension.
The wood pulp cellulose is cotton pulp.
The miillpore filter is the teflon membrane filter that aperture is 0.8 μm.
The hot press hot pressing pressure is 7MPa.
The transparency of the cellophane paper of this experiment preparation is 92.3%, tensile strength 112.3MPa.
Embodiment 4
A kind of preparation method of the high grade of transparency cellophane paper using bismuth-containing material, technology of preparing scheme are as follows:
It according to mass fraction, disperses 0.5 part of wood pulp cellulose in 80 parts of deionized water, 50 parts of bismuth-containing is then added and receives
Rice cellulose suspension, ultrasonic disperse 20min, it is spare to form suspension after mixing evenly；Then 20 parts of bismuth-containing nanometer is separately taken
Cellulose suspension forms one layer of nano-cellulose layer using filtering with microporous membrane；Then suspension is continued to filter in the micropore
It is filtered on film, forms cellulose layer；Cellulose layer is stripped down from miillpore filter, is put into using the mold for cleaning smooth
Hot pressing 30min is carried out on 50 DEG C of hot press, is then turned off the heating system of hot press, and cooling under dwell condition can be obtained
A kind of high grade of transparency cellophane paper using bismuth-containing material.
The bismuth-containing nano-cellulose suspension is prepared in accordance with the following methods:
It according to mass fraction, disperses 10 wood pulp cellulose in 200 parts of dimethyl sulfoxide, 1.8 parts of hydrogen-oxygen is then added
It is free to change sodium, 1 part of 2- (trimethylsilyl) ethoxymethyl chlorine, 0.05 part of 4- oxygen -2,2,6,6- tetramethyl piperidine -1- oxygen
Base and 0.5 part of bismuth hexafluoro -2,4- pentanedionate, are stirred to react 60min by 60 DEG C of temperature control；It completes 15 parts of secondary chlorine after reacting
Sour sodium is added in reaction kettle, is warming up to 80 DEG C, reacts 10h；It is filtered after completing reaction, washs three with a large amount of deionized water
It is secondary；Then fiber is configured to 5% suspension, it is homogeneous using high pressure homogenizer, take supernatant can be obtained after centrifugation described
Bismuth-containing nano-cellulose suspension.
The wood pulp cellulose is bleaching needle-point leaf pulp.
The miillpore filter is the teflon membrane filter that aperture is 0.3 μm.
The hot press hot pressing pressure is 7MPa.
The transparency of the cellophane paper of this experiment preparation is 91.5%, tensile strength 107.2MPa.
Embodiment 5
A kind of preparation method of the high grade of transparency cellophane paper using bismuth-containing material, technology of preparing scheme are as follows:
It according to mass fraction, disperses 2 parts of wood pulp cellulose in 150 parts of deionized water, 80 parts of bismuth-containing is then added and receives
Rice cellulose suspension, ultrasonic disperse 30min, it is spare to form suspension after mixing evenly；Then 40 parts of bismuth-containing nanometer is separately taken
Cellulose suspension forms one layer of nano-cellulose layer using filtering with microporous membrane；Then suspension is continued to filter in the micropore
It is filtered on film, forms cellulose layer；Cellulose layer is stripped down from miillpore filter, is put into using the mold for cleaning smooth
Hot pressing 60min is carried out on 70 DEG C of hot press, is then turned off the heating system of hot press, and cooling under dwell condition can be obtained
A kind of high grade of transparency cellophane paper using bismuth-containing material.
The bismuth-containing nano-cellulose suspension is prepared in accordance with the following methods:
It according to mass fraction, disperses 2 wood pulp cellulose in 100 parts of dimethyl sulfoxide, 0.8 part of hydroxide is then added
Sodium, 0.2 part of 2- (trimethylsilyl) ethoxymethyl chlorine, 0.01 part of 4- oxygen -2,2,6,6- tetramethyl piperidine -1- oxygen are free
Base and 0.1 part of bismuth hexafluoro -2,4- pentanedionate, are stirred to react 40min by 50 DEG C of temperature control；It completes 5 parts of hypochlorous acid after reacting
Sodium is added in reaction kettle, is warming up to 70 DEG C, reacts 5h；It filters after completing reaction, is washed three times with a large amount of deionized water；So
Fiber is configured to 0.5% suspension afterwards, it is homogeneous using high pressure homogenizer, take supernatant that described contain can be obtained after centrifugation
Bismuth nano-cellulose suspension.
The wood pulp cellulose is cotton pulp.
The miillpore filter is the teflon membrane filter that aperture is 0.3 μm.
The hot press hot pressing pressure is 6MPa.
The transparency of the cellophane paper of this experiment preparation is 91.9%, tensile strength 105.7MPa.
Comparative example 1
Bismuth-containing nano-cellulose suspension, the other the same as in Example 1 is not added.
The transparency of the cellophane paper of this experiment preparation is 35.8%, tensile strength 32.8MPa.
Comparative example 2
Bismuth hexafluoro -2,4- pentanedionate, the other the same as in Example 1 is not added.
The transparency of the cellophane paper of this experiment preparation is 81.5%, tensile strength 76.3MPa.
Comparative example 3
2- (trimethylsilyl) ethoxymethyl chlorine, the other the same as in Example 1 is not added.
The transparency of the cellophane paper of this experiment preparation is 83.9%, tensile strength 76.7MPa.
Comparative example 4
4- oxygen -2,2,6,6- tetramethyl piperidine -1- oxygen radicals, the other the same as in Example 1 is not added.
The transparency of the cellophane paper of this experiment preparation is 80.1%, tensile strength 72.9MPa.
Claims (5)
1. a kind of preparation method of the high grade of transparency cellophane paper using bismuth-containing material, technology of preparing scheme are as follows:
According to mass fraction, disperses 0.5-2 parts of wood pulp cellulose in 80-150 parts of deionized water, 50-80 is then added
The bismuth-containing nano-cellulose suspension of part, ultrasonic disperse 20-30min, it is spare to form suspension after mixing evenly；Then it separately takes
20-40 parts of bismuth-containing nano-cellulose suspension forms one layer of nano-cellulose layer using filtering with microporous membrane；Then it will mix
Suspension continuation is filtered on the miillpore filter, forms cellulose layer；Cellulose layer is stripped down from miillpore filter, using clear
Clean smooth mold is put into progress hot pressing 30-60min on 50-70 DEG C of hot press, is then turned off the heating system of hot press,
It is cooling under dwell condition, a kind of high grade of transparency cellophane paper using bismuth-containing material can be obtained.
2. a kind of preparation method of high grade of transparency cellophane paper using bismuth-containing material according to claim 1, feature exist
In: the bismuth-containing nano-cellulose suspension is prepared in accordance with the following methods:
According to mass fraction, disperses the wood pulp cellulose of 2-10 in 100-200 parts of dimethyl sulfoxide, 0.8- is then added
1.8 parts of sodium hydroxide, 0.2-1 parts of 2- (trimethylsilyl) ethoxymethyl chlorine, 0.01-0.05 parts of oxygen -2,2,6 4-,
6- tetramethyl piperidine -1- oxygen radical and 0.1-0.5 parts of bismuth hexafluoro -2,4- pentanedionate, are stirred to react by 50-60 DEG C of temperature control
40-60min；5-15 parts of sodium hypochlorite is added in reaction kettle after completing reaction, is warming up to 70-80 DEG C, reacts 5-10h；
It filters after completing reaction, is washed three times with a large amount of deionized water；Then fiber is configured to the suspension of 0.5%-5%, used
High pressure homogenizer, it is homogeneous, take supernatant that the bismuth-containing nano-cellulose suspension can be obtained after centrifugation.
3. a kind of preparation method of high grade of transparency cellophane paper using bismuth-containing material according to claim 1, feature exist
In: the wood pulp cellulose is bleaching needle-point leaf pulp or hardwood pulp or cotton pulp.
4. a kind of preparation method of high grade of transparency cellophane paper using bismuth-containing material according to claim 1, feature exist
In: the miillpore filter is the teflon membrane filter that aperture is 0.3-0.8 μm.
5. a kind of preparation method of high grade of transparency cellophane paper using bismuth-containing material according to claim 1, feature exist
In: the hot press hot pressing pressure is 3-7MPa.
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| JP2588495B2 (en) * | 1991-04-17 | 1997-03-05 | エルフ アトケム ソシエテ アノニム | Method for producing high yield and high bleaching pulp for papermaking |
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| CN106498795A (en) * | 2016-11-18 | 2017-03-15 | 陕西盛迈石油有限公司 | The preparation method of high-strength transparence nano-cellulose paper |
| CN107056954A (en) * | 2017-03-22 | 2017-08-18 | 青岛科技大学 | A kind of efficient Cellulose nanocrystal preparation method |
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| JP2588495B2 (en) * | 1991-04-17 | 1997-03-05 | エルフ アトケム ソシエテ アノニム | Method for producing high yield and high bleaching pulp for papermaking |
| CN105568747A (en) * | 2015-12-17 | 2016-05-11 | 梅庆波 | Method for manufacturing nanofiber transparent paper from straw |
| CN106024771A (en) * | 2016-07-30 | 2016-10-12 | 杨超坤 | Novel light-emitting diode for field of electronic devices |
| CN106498795A (en) * | 2016-11-18 | 2017-03-15 | 陕西盛迈石油有限公司 | The preparation method of high-strength transparence nano-cellulose paper |
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