CN105506986A - Flexible modifier for gypsum fibers and preparation method of flexible modifier - Google Patents
Flexible modifier for gypsum fibers and preparation method of flexible modifier Download PDFInfo
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- CN105506986A CN105506986A CN201510975263.9A CN201510975263A CN105506986A CN 105506986 A CN105506986 A CN 105506986A CN 201510975263 A CN201510975263 A CN 201510975263A CN 105506986 A CN105506986 A CN 105506986A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/075—Macromolecular gels
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2387/00—Characterised by the use of unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
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- Textile Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the field of inorganic mineral fibers and particularly relates to a flexible modifier for gypsum fibers and a preparation method of the flexible modifier. The flexible modifier for the gypsum fibers is polymer gel which adopts a network structure and is formed through cationic modification of starch obtained after polyvinyl alcohol graft modification and expanded graphite, and comprises raw materials in parts by weight as follows: 50-60 parts of pre-gelatinized starch, 10-20 parts of polyvinyl alcohol, 5-10 parts of expanded graphite, 5-15 parts of a cationic modifier, 5-10 parts of water-soluble vegetable gum and 2-3 parts of a dispersant. The flexible modifier for the gypsum fibers can improve surface activity of the gypsum fibers, improve softness and dispersity of the gypsum fibers and increase binding force between the gypsum fibers and plant fibers, and gypsum fibers treated with the method can obviously increase softness of paper when used for papermaking.
Description
Technical field
The invention belongs to inorganic mineral fiber field, particularly flexible modifier of a kind of gypsum fiber and preparation method thereof.
Background technology
Paper industry plays key player in global economy and civilization, and the output value accounts for 2.5% of the world industry gross output value, accounts for 2% of quantum of world trade.Timber is the main raw material of paper industry, accounts for more than 93% of paper making raw material, along with the fast development of paper-making industry, causes disafforestation on a large scale, and whole world area of woods is fallen sharply, and desertification aggravates, and also brings serious contaminated environment simultaneously, affects human health.Current China paper total amount is continuous, paper making raw material critical shortage, forces us actively to find the substitute of cheap paper pulp fiber.Because China has more rich mineral fibres resource, therefore replaced by mineral fibres Activities of Some Plants fiber to be used for papermaking, can not only production cost be reduced, and significant to protection China's Forest Resources.
Gypsum fiber is also referred to as crystal whisker of gypsum, is a kind of function admirable and cheap mineral fibres.Gypsum fiber is for raw material carries out a kind of ca sulphate fibre shape monocrystal of being processed into plaster of paris mineral, there is complete crystal structure, stronger mechanical property, excellent physicochemical properties, as high-insulativity, high flame retardant, abrasion performance, high temperature resistant, acid and alkali-resistance, many excellent physicochemical properties such as corrosion-resistant.Therefore, gypsum fiber can be widely used as paper making raw material, and it not only can be used as filler, also partly or entirely can replace string, for the production of all types of industries paper.But gypsum fiber is used for papermaking also also exists some defects, the hardness of such as gypsum fiber is large, fragility is strong, surface without organic group, to be very difficultly combined with string, therefore must to soften gypsum fiber, modification.
China Patent Publication No. CN103352396A discloses a kind of method being prepared crystal whisker of gypsum by the modification of organic/inorganic compound coating, adopts ion-exchange to carry out the inorganic modified of crystal whisker of gypsum surface; Chitosan solution carries out surface organic modification to crystal whisker of gypsum.By carrying out modification to crystal whisker of gypsum, its retention occurred in paper-making process of effective solution is low, with the problem such as the adhesive force of paper pulp is not good, while reduction crystal whisker of gypsum solubility, do not change the physicochemical property of its excellence, and the affinity of crystal whisker of gypsum and paper pulp can be increased.
China Patent Publication No. CN102852031A discloses a kind of modified calcium sulfate crystal whisker papermaking filler and its preparation method and application, dissolution inhibition modifier is adopted to carry out modification as any one in Sodium Polyacrylate, natrium citricum, sodium potassium tartrate tetrahydrate, sodium phosphate trimer, sodium pyrophosphate, tertiary sodium phosphate, calgon, gluconic acid sodium salt, sodium metasilicate is above to calcium sulfate crystal whiskers, it is high that copy paper keeps rate here, plain boiled water load is low, eliminate pipeline scale problem, papermaking filler and the Activities of Some Plants fibrous raw materials such as calcium carbonate, china clay, talcum powder can be substituted completely.
China Patent Publication No. CN104651945A discloses a kind of method of calcium sulfate crystal whiskers surface modification, the modification of chemistry parcel is carried out with sodium aluminate solution after calcium sulfate crystal whiskers being carried out sonic oscillation, calcium sulfate crystal whiskers after modification is as the filler in paper technology, retention not only in paper reaches the level of pearl filler, and the paper physical chemical property of gained is excellent.
China Patent Publication No. CN103074800A discloses surface coating modification method and the application thereof of inorganic paper fibre calcium sulfate crystal whiskers, first carry out dispersion treatment with dispersant, then add water, ethanol, ammoniacal liquor, organosilicon source and surfactant mixed solution carry out whip modified, improve the retention of calcium sulfate crystal whiskers, reduce the use of string simultaneously, reduce timber waste, reach the low process for carbonization production of energy-saving and emission-reduction.
At present, modification about gypsum fiber mainly concentrates the problem solving copy paper retention, just simply carry out Surface coating, solve its deliquescent problem, research for the modification of gypsum fiber surface flexible is less, the flexibility modification of gypsum fiber can strengthen the combination power between gypsum fiber and string, improves the consumption of gypsum fiber substituted plant fiber, provides technical guarantee for gypsum fiber is used for papermaking.Therefore, the flexible modification studying gypsum fiber has great importance.
Summary of the invention
The present invention is directed to the problems referred to above, propose flexible modifier of a kind of gypsum fiber and preparation method thereof.The flexible modifier of this gypsum fiber is through the cation-modified a kind of polymer gel with network structure formed by polyvinyl alcohol graft copolymerized modified starch and expanded graphite, wherein add water-soluble plant glue and dispersant, the surface being wrapped in gypsum fiber can be adsorbed after mixing with gypsum fiber, increase the active group on gypsum fiber surface, improve the pliability of gypsum fiber, and gel surface is with positive charge, easily react with electronegative string generation charge neutrality, gypsum fiber and string are combined closely, make the replacement string of gypsum fiber larger proportion for papermaking.Further aim of the present invention is to provide the preparation method of the flexible modifier of gypsum fiber.
For achieving the above object, the present invention adopts following technical scheme:
The flexible modifier of a kind of gypsum fiber, to is characterized in that by polyvinyl alcohol graft copolymerized modified starch and expanded graphite, through the cation-modified a kind of polymer gel with network structure formed, comprising following component by weight:
Pre-gelatinized starch 50-60 part,
Polyvinyl alcohol 10-20 part,
Expanded graphite 5-10 part,
Cation modifier 5 ~ 15 parts,
Water-soluble plant glue 5-10 part,
Dispersant 2-3 part,
Wherein said pre-gelatinized starch is at least one in wheat pre-gelatinized starch, corn pre-gelatinized starch, cassava pre-gelatinized starch, Ipomoea batatas pre-gelatinized starch;
Described cation modifier is quaternary surfactant, comprise at least one in hexadecyldimethyl benzyl ammonium propenyl ammonium chloride, octadecyl trimethyl ammonium chloride, 2,3-dihydroxypropyl dibasic acid esters ammonium chlorides, betaine ester, aspartate, alkyl imidazoline quaternary ammonium salt;
Described water-soluble plant glue is at least one in acacia, guar gum, tamarind gum, pectin, konjac glucomannan; Described dispersant is at least one in calgon, sodium starch phosphate, sodium thiophosphate, sodium polyphosphate.
The preparation method of the flexible modifier of a kind of gypsum fiber of the present invention, is characterized in that this preparation method comprises the following steps:
(1) pre-gelatinized starch of 50 ~ 60 weight portions is dropped in stirred autoclave, stir while add waterside, dissolve completely to pre-gelatinized starch, form starch solution;
(2) polyvinyl alcohol of 10 ~ 20 weight portions is added suitable quantity of water, 60 ~ 80 DEG C of stirring and dissolving, be made into the poly-vinyl alcohol solution that mass fraction is 10 ~ 20%;
(3) poly-vinyl alcohol solution obtained in step (2) is joined in the starch solution that step (1) obtains, pass into nitrogen 10 ~ 15min, oxygen in reactor is got rid of, utilizes ultraviolet rays radiation 5 ~ 10min, obtain the starch gel of polyvinyl alcohol graft copolymerized modification;
(4) expanded graphite of 5 ~ 10 weight portions is joined in the gel solution that step (3) obtains, 5 ~ 10min is stirred under 500-1000rpm high-speed stirred condition, then the cation modifier adding 5 ~ 15 weight portions continues stirring reaction 10 ~ 20min, mixing speed 300 ~ 500rpm, obtains polymer gel;
(5) the water-soluble plant glue of 5 ~ 10 weight portions and the dispersant of 2 ~ 3 weight portions are joined in the polymer gel that step (4) obtains, continue stirring 5 ~ 10min, filter, dry, obtain the flexible modifier of a kind of gypsum fiber.
Dosage of radiation described in above-mentioned preparation process (2) is 20 ~ 30kGy.Under ultraviolet rays effect, crosslinked together by free radical between polyvinyl alcohol and starch, shorten the glycerol polymerization time, be conducive to polyvinyl alcohol and the complete glycerol polymerization of starch.
A kind of gypsum fiber of the present invention flexible modifier scatters with moisture when using, join in gypsum fiber suspension, its consumption is 0.3% ~ 1% of gypsum fiber, ultrasonic agitation 20 ~ 30min, gypsum fiber and flexible modifier are mixed, and namely filtration drying obtains the gypsum fiber of flexible modification.
The flexible modifier of a kind of gypsum fiber of the present invention by polyvinyl alcohol graft copolymerized modified starch and expanded graphite through the cation-modified a kind of polymer gel with network structure formed, the surface being wrapped in gypsum fiber can be adsorbed after mixing with gypsum fiber, increase the active group on gypsum fiber surface, improve the pliability of gypsum fiber.The stratiform open structure of expanded graphite is utilized in the present invention, modified starch is made to be dispersed in graphite, form a kind of flexible network structure of densification, be conducive to cation modifier and starch reacts, make gel surface with certain positive charge, easily react with electronegative string generation charge neutrality, gypsum fiber and string are combined closely; Add a certain amount of water-soluble plant glue and dispersant, the interaction between reinforced modifier and gypsum fiber in modifier simultaneously, improve the dispersiveness of gypsum fiber in water, greatly improve the application performance of gypsum fiber for paper technology.
Flexible modifier of a kind of gypsum fiber of the present invention and preparation method thereof, compared with prior art outstanding feature and useful effect are:
1, the flexible modifier of a kind of gypsum fiber of the present invention, with the pre-gelatinized starch of polyvinyl alcohol modification for main material, with the polymer gel with network structure of expanded graphite through a kind of surface band positive charge of cation-modified formation, the surface being wrapped in gypsum fiber can be adsorbed, increase the active group on the fine surface of gypsum fiber, improve the pliability of gypsum fiber, easily combine closely with electronegative string, improve the utilization rate of gypsum fiber in paper industry.
2, the water-soluble plant glue added in the flexible modifier of a kind of gypsum fiber of the present invention has certain caking property, be conducive to the interaction of modifier and gypsum fiber, the dispersant simultaneously added in modifier improves the dispersive property of gypsum fiber in water, add the compatibility of itself and string, improve the intensity of gypsum fiber paper.
3, the gypsum fiber pliability after the flexible modifier modification of the present invention is good, and the paper surface manufactured with it is smooth, and pliability significantly improves.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is explained in detail, is not restricted to the present invention.When not departing from said method thought of the present invention, the various replacement made according to ordinary skill knowledge and customary means or improvement, all should be included within protection scope of the present invention.
embodiment 1
(1) the wheat pre-gelatinized starch of 50 weight portions is dropped in stirred autoclave, stir while add waterside, dissolve completely to pre-gelatinized starch, form starch solution;
(2) polyvinyl alcohol of 20 weight portions is added suitable quantity of water, 60 ~ 80 DEG C of stirring and dissolving, be made into the poly-vinyl alcohol solution that mass fraction is 10%;
(3) poly-vinyl alcohol solution obtained in step (2) is joined in the starch solution in step (1), pass into nitrogen 15min, the oxygen in reactor is got rid of, utilizes ultraviolet rays radiation 5min, dosage of radiation is 30kGy, obtains the starch gel of polyvinyl alcohol graft copolymerized modification;
(4) expanded graphite of 5 weight portions is joined in above-mentioned gel solution, 5min is stirred under 800rpm high-speed stirred condition, then the hexadecyldimethyl benzyl ammonium propenyl ammonium chloride adding 10 weight portions continues stirring reaction 10min, and mixing speed 500rpm, obtains polymer gel;
(5) calgon of the acacia of 5 weight portions and 3 weight portions is joined above-mentioned polymer gel, continue to stir 5min, filter, dry, obtain the flexible modifier of a kind of gypsum fiber.
embodiment 2
(1) the corn pre-gelatinized starch of 50 weight portions is dropped in stirred autoclave, stir while add waterside, dissolve completely to pre-gelatinized starch, form starch solution;
(2) polyvinyl alcohol of 20 weight portions is added suitable quantity of water, 60 ~ 80 DEG C of stirring and dissolving, be made into the poly-vinyl alcohol solution that mass fraction is 10%;
(3) poly-vinyl alcohol solution obtained in step (2) is joined in the starch solution in step (1), pass into nitrogen 15min, got rid of by oxygen in reactor, utilize ultraviolet rays radiation 10min, dosage of radiation is the starch gel that 20kGy obtains polyvinyl alcohol graft copolymerized modification;
(4) expanded graphite of 10 weight portions is joined in above-mentioned gel solution, 5min is stirred under 1000rpm high-speed stirred condition, then the octadecyl trimethyl ammonium chloride adding 15 weight portions continues stirring reaction 20min, and mixing speed 500rpm, obtains polymer gel;
(5) sodium starch phosphate of the guar gum of 5 weight portions and 2 weight portions is joined above-mentioned polymer gel, continue to stir 10min, filter, dry, obtain the flexible modifier of a kind of gypsum fiber.
embodiment 3
(1) the cassava pre-gelatinized starch of 60 weight portions is dropped in stirred autoclave, stir while add waterside, dissolve completely to pre-gelatinized starch, form starch solution;
(2) polyvinyl alcohol of 10 weight portions is added suitable quantity of water, 60 ~ 80 DEG C of stirring and dissolving, be made into the poly-vinyl alcohol solution that mass fraction is 20%;
(3) poly-vinyl alcohol solution obtained in step (2) is joined in the starch solution in step (1), pass into nitrogen 10min, got rid of by oxygen in reactor, utilize ultraviolet rays radiation 6min, dosage of radiation is the starch gel that 30kGy obtains polyvinyl alcohol graft copolymerized modification;
(4) expanded graphite of 10 weight portions is joined in above-mentioned gel solution, under 800rpm high-speed stirred condition, stir 5min, 2, the 3-dihydroxypropyl dibasic acid esters ammonium chlorides then adding 10 weight portions continue stirring reaction 20min, mixing speed 300rpm, obtains polymer gel;
(5) sodium thiophosphate of the tamarind gum of 10 weight portions and 2 weight portions is joined above-mentioned polymer gel, continue to stir 10min, filter, dry, obtain the flexible modifier of a kind of gypsum fiber.
embodiment 4
(1) the Ipomoea batatas pre-gelatinized starch of 60 weight portions is dropped in stirred autoclave, stir while add waterside, dissolve completely to pre-gelatinized starch, form starch solution;
(2) polyvinyl alcohol of 10 weight portions is added suitable quantity of water, 60 ~ 80 DEG C of stirring and dissolving, be made into the poly-vinyl alcohol solution that mass fraction is 20%;
(3) poly-vinyl alcohol solution obtained in step (2) is joined in the starch solution in step (1), pass into nitrogen 15min, got rid of by oxygen in reactor, utilize ultraviolet rays radiation 5min, dosage of radiation is the starch gel that 30kGy obtains polyvinyl alcohol graft copolymerized modification;
(4) join in above-mentioned gel solution by the expanded graphite of 10 weight portions, under 500rpm high-speed stirred condition, stir 10min, the betaine ester salt then adding 15 weight portions continues stirring reaction 20min, and mixing speed 500rpm, obtains polymer gel;
(5) sodium polyphosphate of the pectin of 10 weight portions and 3 weight portions is joined above-mentioned polymer gel, continue to stir 10min, filter, dry, obtain the flexible modifier of a kind of gypsum fiber.
embodiment 5
(1) the wheat pre-gelatinized starch of 60 weight portions is dropped in stirred autoclave, stir while add waterside, dissolve completely to pre-gelatinized starch, form starch solution;
(2) polyvinyl alcohol of 20 weight portions is added suitable quantity of water, 60 ~ 80 DEG C of stirring and dissolving, be made into the poly-vinyl alcohol solution that mass fraction is 10%;
(3) poly-vinyl alcohol solution obtained in step (2) is joined in the starch solution in step (1), pass into nitrogen 15min, the oxygen in reactor is got rid of, utilizes ultraviolet rays radiation 6min, obtain the starch gel of polyvinyl alcohol graft copolymerized modification;
(4) join in above-mentioned gel solution by the expanded graphite of 10 weight portions, under 1000rpm high-speed stirred condition, stir 5min, the aspartate then adding 10 weight portions continues stirring reaction 15min, and mixing speed 300rpm, obtains polymer gel;
(5) calgon of the konjac glucomannan of 10 weight portions and 3 weight portions is joined above-mentioned polymer gel, continue to stir 10min, filter, dry, obtain the flexible modifier of a kind of gypsum fiber.
Claims (5)
1. the flexible modifier of gypsum fiber, to is characterized in that by polyvinyl alcohol graft copolymerized modified starch and expanded graphite, through the cation-modified a kind of polymer gel with network structure formed, comprising following component by weight:
Pre-gelatinized starch 50-60 part,
Polyvinyl alcohol 10-20 part,
Expanded graphite 5-10 part,
Cation modifier 5 ~ 15 parts,
Water-soluble plant glue 5-10 part,
Dispersant 2-3 part,
Wherein said pre-gelatinized starch is at least one in wheat pre-gelatinized starch, corn pre-gelatinized starch, cassava pre-gelatinized starch, Ipomoea batatas pre-gelatinized starch; Described cation modifier is quaternary surfactant; Described water-soluble plant glue is at least one in acacia, guar gum, tamarind gum, pectin, konjac glucomannan.
2. the flexible modifier of a kind of gypsum fiber according to claim 1, it is characterized in that described quaternary surfactant is at least one in hexadecyldimethyl benzyl ammonium propenyl ammonium chloride, octadecyl trimethyl ammonium chloride, 2,3-dihydroxypropyl dibasic acid esters ammonium chlorides, betaine ester, aspartate, alkyl imidazoline quaternary ammonium salt.
3. the flexible modifier of a kind of gypsum fiber according to claim 1, is characterized in that described dispersant is at least one in calgon, sodium starch phosphate, sodium thiophosphate, sodium polyphosphate.
4. the flexible modifier of a kind of gypsum fiber according to any one of claim 1 to 3, is characterized in that the preparation method of the flexible modifier of described a kind of gypsum fiber carries out in the following manner:
(1) pre-gelatinized starch of 50 ~ 60 weight portions is dropped in stirred autoclave, stir while add waterside, dissolve completely to pre-gelatinized starch, form starch solution;
(2) polyvinyl alcohol of 10 ~ 20 weight portions is added suitable quantity of water, 60 ~ 80 DEG C of stirring and dissolving, be made into the poly-vinyl alcohol solution that mass fraction is 10 ~ 20%;
(3) poly-vinyl alcohol solution obtained in step (2) is joined in the starch solution that step (1) obtains, pass into nitrogen 10 ~ 15min, oxygen in reactor is got rid of, utilizes ultraviolet rays radiation 5 ~ 10min, obtain the starch gel of polyvinyl alcohol graft copolymerized modification;
(4) expanded graphite of 5 ~ 10 weight portions is joined in the gel solution that step (3) obtains, 5 ~ 10min is stirred under 500-1000rpm high-speed stirred condition, then the cation modifier adding 5 ~ 15 weight portions continues stirring reaction 10 ~ 20min, mixing speed 300 ~ 500rpm, obtains polymer gel;
(5) the water-soluble plant glue of 5 ~ 10 weight portions and the dispersant of 2 ~ 3 weight portions are joined in the polymer gel that step (4) obtains, continue stirring 5 ~ 10min, filter, dry, obtain the flexible modifier of a kind of gypsum fiber.
5. the flexible modifier of a kind of gypsum fiber according to claim 4, is characterized in that the dosage of radiation described in step (2) is 20 ~ 30kGy.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074800A (en) * | 2012-11-20 | 2013-05-01 | 东莞上海大学纳米技术研究院 | Method for coating and modifying surface of inorganic paper making fiber calcium sulfate whisker and application |
| CN103667692A (en) * | 2014-01-02 | 2014-03-26 | 嘉峪关市园通新型保温材料有限责任公司 | Combined fluorite powder palletizing adhesion agent and application thereof |
| CN104194698A (en) * | 2014-07-30 | 2014-12-10 | 青岛吉顺隆商贸有限公司 | Long-acting construction glue |
| CN105086308A (en) * | 2015-07-30 | 2015-11-25 | 北京博润佳科技有限公司 | Water-resistant re-dispersible latex powder |
| CN105297433A (en) * | 2015-10-30 | 2016-02-03 | 成都新柯力化工科技有限公司 | Gypsum fiber flexible modifier and preparation method thereof |
-
2015
- 2015-12-23 CN CN201510975263.9A patent/CN105506986A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074800A (en) * | 2012-11-20 | 2013-05-01 | 东莞上海大学纳米技术研究院 | Method for coating and modifying surface of inorganic paper making fiber calcium sulfate whisker and application |
| CN103667692A (en) * | 2014-01-02 | 2014-03-26 | 嘉峪关市园通新型保温材料有限责任公司 | Combined fluorite powder palletizing adhesion agent and application thereof |
| CN104194698A (en) * | 2014-07-30 | 2014-12-10 | 青岛吉顺隆商贸有限公司 | Long-acting construction glue |
| CN105086308A (en) * | 2015-07-30 | 2015-11-25 | 北京博润佳科技有限公司 | Water-resistant re-dispersible latex powder |
| CN105297433A (en) * | 2015-10-30 | 2016-02-03 | 成都新柯力化工科技有限公司 | Gypsum fiber flexible modifier and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 朱一民: "硫酸钙晶须制备过程中的表面改性研究", 《中国粉体技术》 * |
| 李相国: "硫酸钙晶须表面改性及其性能研究", 《研究开发》 * |
| 王晓丽: "硫酸钙晶须表面湿法改性研究", 《矿冶》 * |
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