CN107190559A - Plant oil filter paper and its preparation method and application - Google Patents
Plant oil filter paper and its preparation method and application Download PDFInfo
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- CN107190559A CN107190559A CN201710439553.0A CN201710439553A CN107190559A CN 107190559 A CN107190559 A CN 107190559A CN 201710439553 A CN201710439553 A CN 201710439553A CN 107190559 A CN107190559 A CN 107190559A
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- 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
- D21H15/12—Composite fibres partly organic, partly inorganic
-
- 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
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- 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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/14—Polyalkenes, e.g. polystyrene polyethylene
-
- 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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/53—Polyethers; Polyesters
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/69—Water-insoluble compounds, e.g. fillers, pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/12—Defoamers
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/30—Pretreatment of the paper
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
-
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/08—Filter paper
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
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Abstract
The invention provides a vegetable oil filter paper, the impregnating agent impregnated including body paper and to body paper, the fiber that described body paper is used is counted including 30 50 parts of corn stalk fiber by weight, 5 12 parts of polypropylene fibre and chopped 8 15 parts of the silk of alkali-free glass fibre, body paper uses 0.05 2 parts of amphiprotic polyacrylamide in preparing, 0.2 0.8 parts of modified starch precipitated calcium carbonate, 0.05 3 parts of the polyethylene glycol oxide with 2,500,000~3,000,000 molecular weight, 0 0.2 parts of defoamer；Described impregnating agent is modified phenolic resin.The plant oil filter paper has wear-resisting, corrosion-resistant, high temperature resistant, average void fraction height, filters absorption of good performance, service life length, dry and wet intensity height and the uniform characteristic of papery.
Description
Technical field
The present invention relates to filter paper technical field, and in particular to vegetable oil filter paper and its preparation method and application.
Background technology
Plant oil filter paper is mainly used in vegetable oil processing and making process filtering crude oil and product oil, can clarify, and decolourizes, only
Change, filter out suspension in oil, colloidal impurity, phosphatide, heavy metal etc., separation wherein solid-state, semisolid debris.Typically it is used primarily in
It on edible deep fried oil filter, because filter paper has suction-operated and supports adsorbent, can adsorb, filter out suspension in high temperature frying oil
The impurity such as thing and hazardous compound, fundamentally reduces the chance that fry dried food ingredients gives birth to deterioration, suppresses acid value growth, extends making for frying oil
With the phase, frying oil is set to become as clear as crystal.
Therefore plant oil filter paper needs to have following characteristic：
1. high temperature resistant, can soak more than 15 days, filter paper intensity is not decreased obviously in 200 degree of oil.
2. with very high average void fraction, the granulometric impurity that more than 10 microns of average void makes frying oil become limpid
It is transparent, reach the purpose for filtering out suspension in oil.
3. with very big air permeability, it can allow the higher lipid material of viscosity is smooth to pass through, the rate of filtration is fast.
4. higher dry and wet intensity, bursting strength reaches more than 350KPa, vertical and horizontal tension stress respectively reach more than 65N and
More than 45N.
But existing plant oil filter paper is extremely difficult to above-mentioned index.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of wear-resisting, corrosion-resistant, high temperature resistant, average void fraction height, filtering
Absorbent properties are good, service life length, dry and wet intensity high and the uniform plant oil filter paper of papery；Present invention also offers the vegetable oil
Filter paper preparation method.
To realize goal of the invention, the present invention uses following technical scheme：
Plant oil filter paper, including body paper and the impregnating agent that is impregnated to body paper, the fiber that described body paper is used is by weight
Measuring number meter includes 30-50 parts of corn stalk fiber, 5-12 parts of polypropylene fibre and chopped 8-15 parts of the silk of alkali-free glass fibre, former
It is made of paper to use 0.05-2 parts of amphiprotic polyacrylamide, 0.2-0.8 parts of modified starch precipitated calcium carbonate, with 2,500,000~300 in
0.05-3 parts of the polyethylene glycol oxide of ten thousand molecular weight, 0-0.2 parts of defoamer.
Preferably, the preparation method of described corn stalk fiber be first maize straw is cleaned, segment, with steaming
Cooking method extracts straw hide fiber, Paper White Degree is met the requirements by bleaching, then makes fibrous refinement by mashing.
Preferably, described alkali-free glass fibre is chopped, silk is adopted is made with the following method：E-glass marble is added first
Heat obtains glass fibre to 1600~1800 DEG C of meltings, then injection melting e-glass marble, finally cutting gained glass fibre
The chopped silk of length unanimously is produced, length is 6 μm -20 μm.
Preferably, the preparation method of described amphiprotic polyacrylamide is using chitosan and acrylamide (AM), Malaysia
Sour (MA), MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride (DMC) graft copolymerization, prepare chitosan graft both sexes polyacrylamide
Amine, amphiprotic polyacrylamide is respectively provided with enhancing and retention aid and filtering aid well and auxiliary sizing efficiency to various slurries.
Preferably, the preparation method of described amphiprotic polyacrylamide is in 70 DEG C of acetic acid chitosans, addition AM,
MA, DMC obtain mixed solution, and chitosan, AM, MA, DMC mol ratio are drawn for 1: 9: 5: 1,80 DEG C toward addition ternary in mixed solution
Agent (sodium peroxydisulfate, sodium hydrogensulfite, ammonium ceric nitrate) is sent out, 4h is reacted.
Preferably, the preparation method of described modified starch precipitated calcium carbonate is (relative to light by starch consumption 28%
Matter calcium carbonate) and precipitated calcium carbonate filler burn cup mixing, add water, be mixed into solid content be 28% solution, use glass
Rod stirs 5min, and mixture is then put into oven, and temperature sets 90 DEG C, and 45~60min of boiling stirrings form colloid substance.
Preferably, described amphiprotic polyacrylamide, modified starch precipitated calcium carbonate, sub very much with 2,500,000~300
The polyethylene glycol oxide and defoamer of amount are food-grade.
Preferably, described impregnating agent is modified phenolic resin.
Preparation method of the present invention on plant oil filter paper, takes following technological means：
The preparation method of plant oil filter paper, comprises the following steps：
Step 1: corn stalk fiber, polypropylene fibre and the chopped silk of alkali-free glass fibre are dredged in high frequency by dosage
Solution machine carries out discongesting mashing, then concentration 0.8-1.8%, pH value 6-8 slurry is being made with stock tank dilution；
Step 2: toward the amphiprotic polyacrylamide that dosage is added in slurry, modified starch precipitated calcium carbonate, with 250
The polyethylene glycol oxide and defoamer of ten thousand~3,000,000 molecular weight, are stirred the slurry for being mixed to get concentration 0.3-1.2%；
Step 3: the slurry that step 2 is obtained routinely manufacture paper with pulp and squeeze and obtain body paper by condition online；
Step 4: body paper is cleaned with EtOH Sonicate, dried at (30~60) DEG C, it is standby, by EtOH Sonicate, by particulate
Deng removing；
Step 5: the body paper that step 4 is handled is soaked in modified phenolic resin, pickup is controlled in 20%-25%
Scope, dries (10~30) min at (30~60) DEG C after taking-up.
Preferably, the preparation method of the phenolic resin of described modification is the molten phenol first at a temperature of 40-45 DEG C
And alkali lye (consumption is the 10% of phenol formaldehyde (PF) gross mass) is added, the 80% of whole formaldehyde amounts is then added, is reacted 1 hour, after
Continuous to be heated to 80 degree, after question response heat release, heating makes system temperature reach micro-boiling, removes thermal source Temperature fall to less than 90 degree,
Modifying agent resorcinol, hydroxypropyl starch ether, acrylic acid-2-ethyl caproite and remaining 20% formaldehyde are added, is heated again
To 90 degree, 40 degree are cooled to bottom discharge.Described formaldehyde：Phenol mol ratio is defined as 1.6：1, modifying agent resorcinol, hydroxyl
The mol ratio of propyl group starch ether, acrylic acid-2-ethyl caproite and phenol is 0.03：0.03：0.03：1.
The plant oil filter paper of the present invention uses corn stalk fiber, polypropylene fibre, and alkali-free glass fibre is chopped silk and poly-
Body paper is made in vinyl fiber, wherein using corn stalk fiber can solve existing China's timber resources it is more poor, it is necessary to according to
Rely in import corn stalk fiber, corn stalk fiber, which substitutes wood pulp cellulose, has the characteristics of economizing on resources, reduce cost, and
Polypropylene fibre has light weight, and intensity is high, good, wear-resisting, the corrosion resistant characteristic of elasticity, is also a kind of synthetic fibers, alkali-free glass
The chopped silk of fiber has effects that reinforcing fiber intensity, and three kinds of fibers can be played into synergy as fibrous raw material, be made
Body paper there is water-fastness, temperature tolerance, wearability, resistance to acids and bases, the characteristic of light weight.
Amphiprotic polyacrylamide is added in the preparation process of body paper, various slurries, which can be respectively provided with, strengthens and help well
Stay drainage and auxiliary sizing efficiency.Modified starch precipitated calcium carbonate is added because the whiteness of precipitated calcium carbonate PCC fillers is higher,
So that the whiteness of body paper is also higher, while the filler improves the physical property of body paper, it can not only improve the performance of paper, also
Fibre material can be saved.Polyethylene glycol oxide has the performances, polyoxy such as flocculation, thickening, sustained release, lubrication, scattered, retention, water conservation
Beating time can also be shortened by changing ethene, the paper pulp that beating degree can be used relatively low, the good paper of evenness of manufacturing paper with pulp out, while paper
Page flexibility and intensity are all preferable.The polyethylene glycol oxide of 2500000~3,000,000 molecular weight, its extensibility macromolecular structure is prevented
Contacting with each other for long fibre surface, improves the viscosity of slurry suspension body, therefore limits the generation of fiber flocculation.
Maceration extract phenol-formaldehyde resin modified decorative paper solidify afterwards, the physical property of paper is all significantly improved, including resistance to
Broken degree, tensile strength, elongation and deflection.
Embodiment
The invention is further illustrated by the following examples, but the present invention is not limited solely to following examples.
Embodiment 1
Plant oil filter paper, including body paper and the impregnating agent that is impregnated to body paper, the fiber that described body paper is used is by weight
Measuring number meter includes 30 parts of corn stalk fiber, 5 parts of polypropylene fibre and chopped 8 parts of the silk of alkali-free glass fibre, in prepared by body paper
Use 0.05 part of amphiprotic polyacrylamide, 0.2 part of modified starch precipitated calcium carbonate, the polyoxy with 2,500,000~3,000,000 molecular weight
Change 0.05 part of ethene.
The preparation method of described corn stalk fiber be first maize straw is cleaned, segment, extracted with cooking process
Straw hide fiber, makes Paper White Degree meet the requirements by bleaching, then makes fibrous refinement by mashing.
The chopped silk of described alkali-free glass fibre is adopted to be made with the following method：E-glass marble is heated to 1600 first~
1800 DEG C of meltings, then injection melts e-glass marble and obtains glass fibre, and finally cutting gained glass fibre produces length one
The chopped silk caused, length is 6 μm.
The preparation method of described amphiprotic polyacrylamide is, in 70 DEG C of acetic acid chitosans, to add acrylamide
(AM), maleic acid (MA), MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride (DMC) obtain mixed solution, chitosan, AM, MA, DMC
Mol ratio for 1: 9: 5: 1,80 DEG C toward addition ternary initiator (sodium peroxydisulfate, sodium hydrogensulfite, cerous nitrate in mixed solution
Ammonium), reaction 4h is made.
The preparation method of described modified starch precipitated calcium carbonate is by starch consumption 28% (relative to precipitated calcium carbonate)
Cup mixing is being burnt with precipitated calcium carbonate filler, water is added, the solution that solid content is 28% is being mixed into, is stirred with glass bar
Mixture, is then put into oven by 5min, and temperature sets 900 DEG C, and 45~60min of boiling stirrings form colloid substance.
Described impregnating agent is modified phenolic resin.
The preparation method of the phenolic resin of described modification is molten phenol and to add alkali lye first at a temperature of 40-45 DEG C
(consumption is the 10% of phenol formaldehyde (PF) gross mass), then adds the 80% of whole formaldehyde amounts, reacts 1 hour, continue to be heated to 80
Degree, after question response heat release, heating makes system temperature reach micro-boiling, removes thermal source Temperature fall to less than 90 degree, adds modifying agent
Resorcinol, hydroxypropyl starch ether, acrylic acid-2-ethyl caproite and remaining 20% formaldehyde, are again heated to 90 degree, cooling
To 40 degree with bottom discharge；Described formaldehyde：Phenol mol ratio is defined as 1.6：1, modifying agent resorcinol, hydroxypropyl starch ether,
The mol ratio of acrylic acid-2-ethyl caproite and phenol is 0.03：0.03：0.03：1.
Described modified nano-titanium dioxide ptfe emulsion is that, using tetrafluoroethylene monomer as primary raw material, addition changes
Property agent nano titanium oxide is prepared.
The preparation method of plant oil filter paper, comprises the following steps：
Step 1: corn stalk fiber, polypropylene fibre and alkali-free glass fibre are chopped into silk in height by above-mentioned dosage
Frequency fluffer carries out discongesting mashing, then concentration 0.8%, pH value 6-8 slurry is being made with stock tank dilution；
Step 2: toward the amphiprotic polyacrylamide that above-mentioned dosage is added in slurry, modified starch precipitated calcium carbonate and tool
There is the polyethylene glycol oxide of 2,500,000~3,000,000 molecular weight, be stirred the slurry for being mixed to get concentration 0.3%；
Step 3: the slurry that step 2 is obtained routinely manufacture paper with pulp and squeeze and obtain body paper by condition online；
Step 4: body paper is cleaned with EtOH Sonicate, dried at (30~60) DEG C, it is standby, by EtOH Sonicate, by particulate
Deng removing；
Step 5: the body paper that step 4 is handled is soaked in modified phenolic resin, pickup is controlled in 22% scope,
(10~30) min is dried after taking-up at (30~60) DEG C.
Embodiment 2
Plant oil filter paper, including body paper and the impregnating agent that is impregnated to body paper, the fiber that described body paper is used is by weight
Measuring number meter includes 50 parts of corn stalk fiber, 12 parts of polypropylene fibre, and alkali-free glass fibre is chopped 15 parts of silk, in body paper preparation
Use 2 parts of amphiprotic polyacrylamide, 0.8 part of modified starch precipitated calcium carbonate, the polyoxygenated with 2,500,000~3,000,000 molecular weight
3 parts of ethene, 0.2 part of defoamer.
The preparation method of described corn stalk fiber be first maize straw is cleaned, segment, extracted with cooking process
Straw hide fiber, makes Paper White Degree meet the requirements by bleaching, then makes fibrous refinement by mashing.
The chopped silk of described alkali-free glass fibre is adopted to be made with the following method：E-glass marble is heated to 1600 first~
1800 DEG C of meltings, then injection melts e-glass marble and obtains glass fibre, and finally cutting gained glass fibre produces length one
The chopped silk caused, length is 20 μm.
The preparation method of described amphiprotic polyacrylamide is, in 70 DEG C of acetic acid chitosans, to add acrylamide
(AM), maleic acid (MA), MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride (DMC) obtain mixed solution, chitosan, AM, MA, DMC
Mol ratio for 1: 9: 5: 1,80 DEG C toward addition ternary initiator (sodium peroxydisulfate, sodium hydrogensulfite, cerous nitrate in mixed solution
Ammonium), reaction 4h is made.
The preparation method of described modified starch precipitated calcium carbonate is by starch consumption 28% (relative to precipitated calcium carbonate)
Cup mixing is being burnt with precipitated calcium carbonate filler, water is added, the solution that solid content is 28% is being mixed into, is stirred with glass bar
Mixture, is then put into oven by 5min, and temperature sets 900 DEG C, and 45~60min of boiling stirrings form colloid substance.
Described impregnating agent is modified phenolic resin.
The preparation method of the phenolic resin of described modification is molten phenol and to add alkali lye first at a temperature of 40-45 DEG C
(consumption is the 10% of phenol formaldehyde (PF) gross mass), then adds the 80% of whole formaldehyde amounts, reacts 1 hour, continue to be heated to 80
Degree, after question response heat release, heating makes system temperature reach micro-boiling, removes thermal source Temperature fall to less than 90 degree, adds modifying agent
Resorcinol, hydroxypropyl starch ether, acrylic acid-2-ethyl caproite and remaining 20% formaldehyde, are again heated to 90 degree, cooling
To 40 degree with bottom discharge；Described formaldehyde：Phenol mol ratio is defined as 1.6：1, modifying agent resorcinol, hydroxypropyl starch ether,
The mol ratio of acrylic acid-2-ethyl caproite and phenol is 0.03：0.03：0.03：1.
The preparation method of plant oil filter paper, comprises the following steps：
Step 1: corn stalk fiber, polypropylene fibre and the chopped silk of alkali-free glass fibre are dredged in high frequency by dosage
Solution machine carries out discongesting mashing, then concentration 1.8%, pH value 6-8 slurry is being made with stock tank dilution；
Step 2: toward the amphiprotic polyacrylamide that dosage is added in slurry, modified starch precipitated calcium carbonate, with 250
The polyethylene glycol oxide and defoamer of ten thousand~3,000,000 molecular weight, are stirred the slurry for being mixed to get concentration 1.2%；
Step 3: the slurry that step 2 is obtained routinely manufacture paper with pulp and squeeze and obtain body paper by condition online；
Step 4: body paper is cleaned with EtOH Sonicate, dried at (30~60) DEG C, it is standby, by EtOH Sonicate, by particulate
Deng removing；
Step 5: the body paper that step 4 is handled is soaked in modified phenolic resin, pickup is controlled in 25% scope,
(10~30) min is dried after taking-up at (30~60) DEG C.
Embodiment 3
Plant oil filter paper, including body paper and the impregnating agent that is impregnated to body paper, the fiber that described body paper is used is by weight
Measuring number meter includes 40 parts of corn stalk fiber, 10 parts of polypropylene fibre, and alkali-free glass fibre is chopped 12 parts of silk, in body paper preparation
Use 1.0 parts of amphiprotic polyacrylamide, 0.4 part of modified starch precipitated calcium carbonate, the polyoxy with 2,500,000~3,000,000 molecular weight
Change 1.5 parts of ethene, 0.1 part of defoamer.
The preparation method of described corn stalk fiber be first maize straw is cleaned, segment, extracted with cooking process
Straw hide fiber, makes Paper White Degree meet the requirements by bleaching, then makes fibrous refinement by mashing.
The chopped silk of described alkali-free glass fibre is adopted to be made with the following method：E-glass marble is heated to 1600 first~
1800 DEG C of meltings, then injection melts e-glass marble and obtains glass fibre, and finally cutting gained glass fibre produces length one
The chopped silk caused, length is 12 μm.
The preparation method of described amphiprotic polyacrylamide is, in 70 DEG C of acetic acid chitosans, to add acrylamide
(AM), maleic acid (MA), MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride (DMC) obtain mixed solution, chitosan, AM, MA, DMC
Mol ratio for 1: 9: 5: 1,80 DEG C toward addition ternary initiator (sodium peroxydisulfate, sodium hydrogensulfite, cerous nitrate in mixed solution
Ammonium), reaction 4h is made.
The preparation method of described modified starch precipitated calcium carbonate is by starch consumption 28% (relative to precipitated calcium carbonate)
Cup mixing is being burnt with precipitated calcium carbonate filler, water is added, the solution that solid content is 28% is being mixed into, is stirred with glass bar
Mixture, is then put into oven by 5min, and temperature sets 90 DEG C, and 45~60min of boiling stirrings form colloid substance.
Described impregnating agent is modified phenolic resin.
The preparation method of the phenolic resin of described modification is molten phenol and to add alkali lye first at a temperature of 40-45 DEG C
(consumption is the 10% of phenol formaldehyde (PF) gross mass), then adds the 80% of whole formaldehyde amounts, reacts 1 hour, continue to be heated to 80
Degree, after question response heat release, heating makes system temperature reach micro-boiling, removes thermal source Temperature fall to less than 90 degree, adds modifying agent
Resorcinol, hydroxypropyl starch ether, acrylic acid-2-ethyl caproite and remaining 20% formaldehyde, are again heated to 90 degree, cooling
To 40 degree with bottom discharge；Described formaldehyde：Phenol mol ratio is defined as 1.6：1, modifying agent resorcinol, hydroxypropyl starch ether,
The mol ratio of acrylic acid-2-ethyl caproite and phenol is 0.03：0.03：0.03：1.
The preparation method of plant oil filter paper, comprises the following steps：
Step 1: corn stalk fiber, polypropylene fibre and the chopped silk of alkali-free glass fibre are dredged in high frequency by dosage
Solution machine carries out discongesting mashing, then concentration 1.2%, pH value 6-8 slurry is being made with stock tank dilution；
Step 2: toward the amphiprotic polyacrylamide that dosage is added in slurry, modified starch precipitated calcium carbonate, with 250
The polyethylene glycol oxide and defoamer of ten thousand~3,000,000 molecular weight, are stirred the slurry for being mixed to get concentration 0.8%；
Step 3: the slurry that step 2 is obtained routinely manufacture paper with pulp and squeeze and obtain body paper by condition online；
Step 4: body paper is cleaned with EtOH Sonicate, dried at (30~60) DEG C, it is standby, by EtOH Sonicate, by particulate
Deng removing；
Step 5: the body paper that step 4 is handled is soaked in modified phenolic resin, pickup is controlled in 20% scope,
(10~30) min is dried after taking-up at (30~60) DEG C.
Plant oil filter paper technical indicator is as shown in the table made from above-described embodiment：
| Project | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Bursting strength | k Pa | 378 | 369 | 374 |
| Tensile strength | k N/m | 1.15 | 1.26 | 1.32 |
| Elongation | % | 5.22 | 5.14 | 4.96 |
| Deflection | m N.m | 3.43 | 3.85 | 3.64 |
| Maximum diameter of hole | μm | 53 | 53 | 54 |
| Average pore size | μm | 33 | 34 | 32 |
| Filter efficiency | μm | 16~20 | 16~20 | 16~20 |
| Air permeability | L/m2.S | 88 | 87 | 86 |
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (7)
1. plant oil filter paper, including body paper and the impregnating agent that is impregnated to body paper, it is characterised in that what described body paper was used
Fiber is counted including 30-50 parts of corn stalk fiber by weight, and 5-12 parts of polypropylene fibre and alkali-free glass fibre are chopped silk
8-15 parts, body paper uses 0.05-2 parts of amphiprotic polyacrylamide in preparing, and 0.2-0.8 parts of modified starch precipitated calcium carbonate has
0.05-3 parts of the polyethylene glycol oxide of 2500000~3,000,000 molecular weight, 0-0.2 parts of defoamer.
2. plant oil filter paper according to claim 1, it is characterised in that the preparation method of described amphiprotic polyacrylamide
Using chitosan and acrylamide AM, maleic acid MA, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride DMC graft copolymerizations, prepare
Go out chitosan graft amphiprotic polyacrylamide, amphiprotic polyacrylamide is respectively provided with enhancing and retention aid and filtering aid well to various slurries
And auxiliary sizing efficiency.
3. plant oil filter paper according to claim 2, it is characterised in that the preparation method of described amphiprotic polyacrylamide
It is, in 70 DEG C of acetic acid chitosans, to add AM, MA, DMC and obtain mixed solution, chitosan, AM, MA, DMC mol ratio are 1: 9:
5: 1,80 DEG C, toward addition ternary initiator sodium peroxydisulfate, sodium hydrogensulfite, ammonium ceric nitrate in mixed solution, are reacted 4h.
4. plant oil filter paper according to claim 1, it is characterised in that the preparation of described modified starch precipitated calcium carbonate
Method is that 28% starch and precipitated calcium carbonate filler of precipitated calcium carbonate consumption are being burnt into cup mixing, adds water, is mixed into
Solid content is 28% solution, and 5min is stirred with glass bar, and mixture is then put into oven, and temperature sets 90 DEG C, boiling 45~
60min is stirred, and forms colloid substance.
5. plant oil filter paper according to claim 1, it is characterised in that described impregnating agent is modified phenolic resin.
6. the preparation method of the plant oil filter paper as described in claim 1 to 5 is any, it is characterised in that comprise the following steps：
Step 1: corn stalk fiber, polypropylene fibre and alkali-free glass fibre are chopped into silk in deflaker by dosage
Mashing is discongested in progress, then concentration 0.8-1.8%, pH value 6-8 slurry is being made with stock tank dilution；
Step 2: toward the amphiprotic polyacrylamide that dosage is added in slurry, modified starch precipitated calcium carbonate, with 2,500,000~
The polyethylene glycol oxide and defoamer of 3000000 molecular weight, are stirred the slurry for being mixed to get concentration 0.3-1.2%；
Step 3: the slurry that step 2 is obtained routinely manufacture paper with pulp and squeeze and obtain body paper by condition online；
Step 4: body paper is cleaned with EtOH Sonicate, dried at 30~60 DEG C, it is standby；
Step 5: the body paper that step 4 is handled is soaked in modified phenolic resin, pickup is controlled in 20%-25% models
Enclose, dry 10~30min after taking-up at 30~60 DEG C.
7. the preparation method of plant oil filter paper according to claim 6, it is characterised in that the phenolic resin of described modification
Preparation method be molten phenol and to add alkali lye first at a temperature of 40-45 DEG C, the consumption of alkali is phenol formaldehyde (PF) gross mass
10%, the 80% of whole formaldehyde amounts is then added, is reacted 1 hour, continues to be heated to 80 degree, after question response heat release, heating makes body
It is that temperature reaches micro-boiling, removes thermal source Temperature fall to less than 90 degree, adds modifying agent resorcinol, hydroxypropyl starch ether, third
Olefin(e) acid -2- ethylhexyls and remaining 20% formaldehyde, are again heated to 90 degree, are cooled to 40 degree with bottom discharge, described first
Aldehyde：Phenol mol ratio is defined as 1.6：1, modifying agent resorcinol, hydroxypropyl starch ether, acrylic acid-2-ethyl caproite and phenol
Mol ratio be 0.03：0.03：0.03：1.
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| CN111926620A (en) * | 2020-08-05 | 2020-11-13 | 中轻特种纤维材料有限公司 | Edible oil filter paper and preparation method thereof |
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