CN105696412A - Starch-based bio-latex and preparation method thereof - Google Patents
Starch-based bio-latex and preparation method thereof Download PDFInfo
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- CN105696412A CN105696412A CN201610245115.6A CN201610245115A CN105696412A CN 105696412 A CN105696412 A CN 105696412A CN 201610245115 A CN201610245115 A CN 201610245115A CN 105696412 A CN105696412 A CN 105696412A
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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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/54—Starch
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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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/46—Non-macromolecular organic compounds
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/60—Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/62—Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/64—Inorganic compounds
-
- 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
- D21H21/08—Dispersing agents for fibres
-
- 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
- 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
- D21H21/14—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 characterised by function or properties in or on the paper
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Medicinal Preparation (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Starch-based bio-latex comprises, by weight, 27-41% of starch or starch derivative, 1-3% of plasticizer, 0.8-1.4% of softener, 0.1-1% of defoamer, 0.5-1.5% of lubricant, 1-1.5% of dispersant, 6-9% of starch modifier, 1-1.4% of PVA, 46-62% of water, 0.1-0.2% of crosslinking agent, and 0.2-0.8% of additive. The preparation method includes steps of 1) mixing 1-3% of plasticizer, 0.8-1.4% of softener, 0.1-1% of defoamer, 0.5-1.5% of lubricant, 1-1.5% of dispersant, 6-9% of starch modifier, and 1-1.4% of PVA with 46-62% of water to produce preix; 2) stirring and curing at low speed at 80-100 DEG C to produce semi-cured materials; 3) dispersing the semi-cured materials at high speed under the action of high shearing force, and cooling to discharge after dispersing. The starch-based bio-latex has the advantages of low viscosity, high binding force, excellent filming performance and intersolubility with oil-based latex, and capability of compounding with polyvinyl alcohol according to any proportion.
Description
Technical field
The invention belongs to pulp technology for making paper, be specifically related to a kind of starch-based biological latex and preparation method thereof。
Background technology
After Cai Lun invention papermaking technology, paper, as culture diffusion medium, is made that tremendous contribution for human civilization。Meanwhile, along with improving constantly of human living standard, people are more and more higher to the requirement of paper products。It is coated with and optimizes technique as a kind of main paper performance, paper industry has highly important status。Coating property directly affects paper properties, and the main component of coating is: pigment, adhesive and other auxiliary agents and water。The same with coating pigment, the character of coating and coating paper is also had great impact by adhesive。
Adhesive is constantly subjected to the extensive concern of people as the important component of coating, people use natural glue to be applied in coating the earliest, development along with technology, this kind of adhesive can not meet paper requirement, it has been developed that a series of synthetic adhesive, wherein applying more is styrene-butadiene latex。The raw material sources of styrene-butadiene latex are in oil, and owing to oil price rises steadily and the scarcity of petroleum resources, and styrene-butadiene latex can to environment in synthesis and use procedure, and therefore center of gravity has been concentrated on environment protection biological product by people gradually。
The research of biological latex is got more and more by recent domestic, and more ripe method is that starch is carried out physics, chemistry, bio-modification, obtains the product that viscosity is low, cohesive force is strong。More is adopt multiple method to carry out composite modified to starch。Such as with starch or starch derivatives for raw material, processed by acidolysis, oxidation, gelatinizing, then add other auxiliary agents and prepare the biological latex with plurality of advantages such as solid content height, viscosity are low, good film-forming property, good fluidity, adhesion strength high, ageing resistace is good。More researcher adopts the mode of extruding to be modified processing to it, and premix material is hybrid reaction in an extruder, obtains the product of function admirable。There is the biogum milk product that can substitute petrochemical industry latex in the market, but these biological latex can only partly replace petrochemical industry latex in coating, improves substitution value and coating paper can be made many problems occur。
Domestic and international developed biological latex at present, its target is all used for substituting petrochemical industry latex, as Paper Coating adhesive。There is more achievement, particularly external EcoSphere biology latex, it is possible to substitute petrochemical industry latex at high proportion, but up to the present yet there are no and biological latex replacement polyvinyl alcohol is applied to the research in ink-jet paper coating。
Summary of the invention
For overcoming above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of starch-based biological latex and preparation method thereof, overcome environmental pollution that the petrochemical industry latex of a large amount of use brings, resource-constrained, expensive defect；Polyvinyl alcohol is overcome to be difficult to prepare the defect of high solids coatings；Have cheap, prepare feature simple and convenient, low-carbon environment-friendly。
For achieving the above object, the technical solution used in the present invention is: a kind of starch-based biological latex, by weight percentage, including following components: the starch of 27-41% or starch derivatives, the plasticizer of 1-3%, the softening agent of 0.8-1.4%, the defoamer of 0.1-1%, the lubricant of 0.5-1.5%, the dispersant of 1-1.5%, the starch modifying agent of 6-9%, 1-1.4% the water of PVA and 46-62%。
A kind of starch-based biological latex, by weight percentage, including following components: the starch of 27-41% or starch derivatives, the plasticizer of 1-3%, the softening agent of 0.8-1.4%, the defoamer of 0.1-1%, the lubricant of 0.5-1.5%, the dispersant of 1-1.5%, the starch modifying agent of 6-9%, the water of PVA, 46-62% of 1-1.4%, the cross-linking agent of 0.1-0.2%, 0.2-0.8% additive；Described starch or the solid content of starch derivatives are 36%。
Described starch is a kind of or arbitrarily several combination in sweet potato starch, corn starch, tapioca, potato starch and wheaten starch。
Described starch derivatives adopts a kind of or arbitrarily several combination in ative starch, Oxytarch, enzymically modified starch, cationic starch, phosphate ester starch hetastarch。
Described cross-linking agent is a kind of in Biformyl, glutaraldehyde, triglyceride, sodium trimetaphosphate, Borax or their combination。
Described additive is calciner territory, titanium dioxide, Pulvis Talci, grinding calcium carbonate, bentonite, carboxymethyl cellulose, Alumina, a kind of or arbitrarily several combination in brightening agent。
Described plasticizer is a kind of or arbitrarily several combination in ethanol, glycerol, ethylene glycol, Polyethylene Glycol, citric acid, triglyceride, propylene glycol, polyvinyl alcohol；
Described lubricant is a kind of or arbitrarily several combination in mono glycerinate, calcium stearate, liquid paraffin, methyl-silicone oil, ethyl silicon oil, polystyrene, polypropylene glycol, polyamide；
Described softening agent is a kind of in glycerol, ethylene glycol, propylene glycol or their combination；
Described defoamer is a kind of in dimethicone, stearmide, polypropylene glycol, tbp or their combination；
Described starch modifying agent is hydrochloric acid, sulphuric acid, acrylic acid, oxalic acid, citric acid, α-amylase, acrylonitrile, potassium permanganate, potassium peroxydisulfate, polyvinyl alcohol, concentration be the aqueous sodium hypochlorite solution of 10wt%, concentration is a kind of or arbitrarily several combination in the hydrogen peroxide of 30wt%, anhydrous sodium sulfite, sodium thiosulfate。
When described starch-based biological latex solid content is 30%, the viscosity at 25 DEG C is 140mPa s to 333mPa s。
The preparation method of described starch-based biological latex, comprises the following steps:
1) by the starch of 27-41% or starch derivatives, 1-3% plasticizer, 0.8-1.4% softening agent, 0.1-1% defoamer, 0.5-1.5% lubricant, 1-1.5% dispersant, 6-9% starch modifying agent and the mixing of 1-1.4%PVA, 46-62% water, premix material is made；
2) under 80-100 DEG C of condition, stirring at low speed ripening, rotating speed is 700-1000r/min, makes semi-mature material；
3) semi-mature material carrying out high speed dispersion under high shear, the rotating speed of high speed dispersion is 3500-4500r/min, after having disperseed, and cooling discharge。
Described step 3) also needs premix material microwaved, and microwave treatment and high speed dispersion hocket。
Described step 1) adds starch or starch derivatives, plasticizer, softening agent, dispersant etc.；Step 3) adds cross-linking agent and additive。
The rotating speed of described stirring at low speed is 700-850r/min。
The rotating speed of described high speed dispersion is 4000-4500r/min。
The invention has the beneficial effects as follows:
The starch-based biological latex viscosity of the present invention is low, can partly substitute petroleum base styrene-butadiene latex and the polyvinyl alcohol of field of papermaking application, belong to Environment-friendlyadhesive adhesive。
The starch-based biological latex preparation process of the present invention is environment friendly and pollution-free, overcomes environmental pollution that the petrochemical industry latex of a large amount of use brings, resource-constrained, expensive defect；Overcome polyvinyl alcohol and be difficult to prepare the defect of high solids coatings；Decreasing existing biological latex and need the complex operations such as screw extruder extrusion, preparation process is simple to operation, and the product prepared has cheap, low-carbon environment-friendly and can partly or entirely substitute styrene-butadiene latex and be applied to the feature of common coating paper。The biological latex that before comparing, researcher works out, this product can also partly substitute polyvinyl alcohol and be applied in ink-jet paper coating；Can partly or entirely substitute paper grade (stock) styrene-butadiene latex, overcome the shortcomings such as styrene-butadiene latex is expensive, contaminated environment, raw material sources are limited, it is also possible to part substitutes ink-jet paper adhesive polyvinyl alcohol；Have the advantages that viscosity is low, cohesive force is strong, film property is excellent and petroleum base latex intersolubility is good and polyvinyl alcohol arbitrary proportion is composite。
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described。
Embodiment 1,
A kind of starch-based biological latex, by mass percentage, including following components:
Sweet potato starch 27%
Starch modifying agent 9%
Calcium stearate 1.5%
Polyacrylamide 1.5%
Tbp 1%
Ethylene glycol 3%
Biformyl 0.2%
Glycerol 1.3%
PVA1.4%
Additive 0.6%
Water 53.5%
Technical process:
Sweet potato starch and water are made into starch milk, add starch modifying agent by formula, regulate pH value of solution to faintly acid, after reacting 3h under 50 DEG C of conditions, add fully dispersed 30min under the auxiliary agent 700r/min rotating speeds such as calcium stearate, polyacrylamide, tbp, be warming up to 80 DEG C of ripenings。Using high speed dispersor instead, add additive and cross-linking agent, stir 5min, microwave treatment 2min under 4000r/min rotating speed, so hocket after 3 times, high speed dispersion to material is cooled to room temperature, discharging。The solid content of the starch-based biological latex that this technique obtains is 30%, the viscosity 186.5mPa s surveyed after room temperature cooling 12h, dissolves each other with styrene-butadiene latex or polyvinyl alcohol weak solution arbitrary proportion。
Embodiment 2
A kind of starch-based biological latex, by mass percentage, including following components:
Sweet potato starch 31%；
Starch modifying agent 6.4%；
PVA1.2%；
Calcium stearate 1%；
Polyacrylamide 1%；
Ethylene glycol 2%；
Glycerol 0.8%；
Tbp 3%
Additive 0.5%；
Borax 0.1%；
Water 53%。
The preparation method of a kind of starch-based biological latex, comprises the following steps:
Above-mentioned sweet potato starch and water are made into starch milk, add starch modifying agent by formula, regulate pH value of solution to faintly acid, after reacting 3h under 50 DEG C of conditions, add calcium stearate, polyacrylamide additives, under 800r/min rotating speed, be warming up to 85 DEG C of ripenings；Using high speed dispersor instead, add additive and cross-linking agent, stir 5min, microwave treatment 2min under 4000r/min rotating speed, so hocket after 3 times, high speed dispersion to material is cooled to room temperature, discharging。The solid content of the starch-based biological latex that this technique obtains is 30%, the viscosity 190.9mPa s surveyed after room temperature cooling 12h, dissolves each other with styrene-butadiene latex or polyvinyl alcohol weak solution arbitrary proportion。
Implement row 3
A kind of starch-based biological latex, by mass percentage, including following components:
Corn starch 35%；
Starch modifying agent 8%；
Calcium stearate 1.2%；
Polyacrylamide 1%；
Ethylene glycol 3%；
Glycerol 1.4%；
Additive 0.8%；
Tbp 1%；
PVA1.4%；
Biformyl 0.2%；
Water 47%。
The preparation method of a kind of starch-based biological latex, comprises the following steps:
Above-mentioned corn starch and water are made into starch milk, add starch modifying agent by formula, regulate pH value of solution to faintly acid, after reacting 3h under 50 DEG C of conditions, add the auxiliary agents such as calcium stearate, polyacrylamide, glycerol, under 800r/min rotating speed, be warming up to 80 DEG C of ripenings。Using high speed dispersor instead, add additive and cross-linking agent, stir 5min, microwave treatment 2min under 4300r/min rotating speed, so hocket after 3 times, high speed dispersion to material is cooled to room temperature, discharging。The solid content of the starch-based biological latex that this technique obtains is 30%, the viscosity 206mPa s surveyed after room temperature cooling 12h, dissolves each other with styrene-butadiene latex or polyvinyl alcohol weak solution arbitrary proportion。
Embodiment 4
A kind of starch-based biological latex, by mass percentage, including following components:
Corn starch 41%；
Starch modifying agent 6%；
Calcium stearate 0.5%；
Polyacrylamide 1%；
Ethylene glycol 1%；
Glycerol 0.8%；
PVA1%；
Additive 0.2%；
Borax 0.1%；
Tbp 0.4%；
Water 48%。
The preparation method of a kind of starch-based biological latex, comprises the following steps:
Above-mentioned corn starch and water are made into starch milk, add starch modifying agent by formula, regulate pH value of solution to faintly acid, after reacting 3h under 50 DEG C of conditions, add the auxiliary agents such as calcium stearate, polyacrylamide, glycerol, under 800r/min rotating speed, be warming up to 80 DEG C of ripenings。Using high speed dispersor instead, add additive and cross-linking agent, stir 5min, microwave treatment 2min under 4300r/min rotating speed, so hocket after 3 times, high speed dispersion to material is cooled to room temperature, discharging。The solid content of the starch-based biological latex that this technique obtains is 30%, the viscosity 217.7mPa s surveyed after room temperature cooling 12h, dissolves each other with styrene-butadiene latex or polyvinyl alcohol weak solution arbitrary proportion。
Claims (10)
1. a starch-based biological latex, by weight percentage, it is characterized in that, including following components: the starch of 27-41% or starch derivatives, the plasticizer of 1-3%, the softening agent of 0.8-1.4%, the defoamer of 0.1-1%, the lubricant of 0.5-1.5%, the dispersant of 1-1.5%, the starch modifying agent of 6-9%, 1-1.4% the water of PVA and 46-62%。
2. a starch-based biological latex, by weight percentage, it is characterized in that, including following components: the starch of 27-41% or starch derivatives, the plasticizer of 1-3%, the softening agent of 0.8-1.4%, the defoamer of 0.1-1%, the lubricant of 0.5-1.5%, the dispersant of 1-1.5%, the starch modifying agent of 6-9%, the water of PVA, 46-62% of 1-1.4%, the cross-linking agent of 0.1-0.2%, 0.2-0.8% additive。
3. a kind of starch-based biological latex according to claim 1 and 2, it is characterised in that described starch is a kind of or arbitrarily several combination in sweet potato starch, corn starch, tapioca, potato starch and wheaten starch。
4. a kind of starch-based biological latex according to claim 1 and 2, it is characterized in that, described starch derivatives adopts a kind of or arbitrarily several combination in ative starch, Oxytarch, enzymically modified starch, cationic starch, phosphate ester starch hetastarch。
5. a kind of starch-based biological latex according to claim 2, it is characterised in that described cross-linking agent is a kind of in Biformyl, glutaraldehyde, triglyceride, sodium trimetaphosphate, Borax or their combination。
6. starch-based biological latex according to claim 2, it is characterized in that, described additive is calciner territory, titanium dioxide, Pulvis Talci, grinding calcium carbonate, bentonite, carboxymethyl cellulose, Alumina, a kind of or arbitrarily several combination in brightening agent。
7. a kind of starch-based biological latex according to claim 1 and 2, it is characterised in that described plasticizer is a kind of or arbitrarily several combination in ethanol, glycerol, ethylene glycol, Polyethylene Glycol, citric acid, triglyceride, propylene glycol, polyvinyl alcohol；
Described lubricant is a kind of or arbitrarily several combination in mono glycerinate, calcium stearate, liquid paraffin, methyl-silicone oil, ethyl silicon oil, polystyrene, polypropylene glycol, polyamide；
Described softening agent is a kind of in glycerol, ethylene glycol, propylene glycol or their combination；
Described defoamer is a kind of in dimethicone, stearmide, polypropylene glycol, tbp or their combination；
Described starch modifying agent is hydrochloric acid, sulphuric acid, acrylic acid, oxalic acid, citric acid, α-amylase, acrylonitrile, potassium permanganate, potassium peroxydisulfate, polyvinyl alcohol, concentration be the aqueous sodium hypochlorite solution of 10wt%, concentration is a kind of or arbitrarily several combination in the hydrogen peroxide of 30wt%, anhydrous sodium sulfite, sodium thiosulfate。
8. starch-based biological latex according to claim 1 and 2, it is characterised in that when described starch-based biological latex solid content is 30%, the viscosity at 25 DEG C is 140mPa s to 333mPa s。
9. the preparation method of a kind of starch-based biological latex described in claim 1, it is characterised in that include following
Step:
1) by the starch of 27-41% or starch derivatives, 1-3% plasticizer, 0.8-1.4% softening agent, 0.1-1% defoamer, 0.5-1.5% lubricant, 1-1.5% dispersant, 6-9% starch modifying agent and the mixing of 1-1.4%PVA, 46-62% water, premix material is made；
2) under 80-100 DEG C of condition, stirring at low speed ripening, rotating speed is 700-1000r/min, makes semi-mature material；
3) semi-mature material carrying out high speed dispersion under high shear, the rotating speed of high speed dispersion is 3500-4500r/min, after having disperseed, cooling discharge；
Described step 3) also needs premix material microwaved, and microwave treatment and high speed dispersion hocket；
Described step 1) adds starch or starch derivatives, plasticizer, softening agent, dispersant；Step 3) adds cross-linking agent and additive。
10. the method preparing starch-based biological latex according to claim 9, it is characterised in that
The rotating speed of described stirring at low speed is 700-850r/min；
The rotating speed of described high speed dispersion is 4000-4500r/min。
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Cited By (8)
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|---|---|---|---|---|
| CN106084076A (en) * | 2016-06-25 | 2016-11-09 | 张莘蔓 | A kind of preparation method of environment protection adhesive |
| CN108219682A (en) * | 2018-02-05 | 2018-06-29 | 枣庄市金科化工有限公司 | A kind of ultra-fine starch adhesive of papermaking coating graininess and preparation method thereof |
| CN108560315A (en) * | 2018-04-25 | 2018-09-21 | 安徽盛美金属科技有限公司 | Micro- painting paper adhesive of one kind and preparation method thereof |
| CN109233687A (en) * | 2018-08-02 | 2019-01-18 | 阜南盛原木业有限公司 | A kind of glued board adhesive |
| CN109233092A (en) * | 2018-08-02 | 2019-01-18 | 阜南盛原木业有限公司 | A kind of water-fast high-strength plywood |
| CN109338798A (en) * | 2018-08-29 | 2019-02-15 | 佛山市森昂生物科技有限公司 | A kind of paper grade (stock) biology latex and preparation method thereof |
| EP3766350A1 (en) | 2019-07-19 | 2021-01-20 | Uniwersytet Przyrodniczy w Poznaniu | Compositon for the preservation of wooden historical objects |
| CN115717341A (en) * | 2022-11-11 | 2023-02-28 | 玖龙纸业（东莞）有限公司 | Method for preparing biological latex for papermaking |
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