CN110437765A - A kind of environmental protection amylum adhesive and preparation method thereof - Google Patents
A kind of environmental protection amylum adhesive and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/18—Oxidised starch
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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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/04—Starch derivatives
- C09J103/10—Oxidised starch
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/324—Alkali metal phosphate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Adhesives Or Adhesive Processes (AREA)
Abstract
The present invention relates to a kind of environmentally friendly amylum adhesives, composition including following parts by weight: 100 parts of dried corn starch, 300-500 parts of deionized water, 0.5-3 parts of sodium carbonate peroxide, 0.01-0.05 parts of catalyst, 0.5-3 parts of stabilizer, 20-45 parts of epoxy resin, 3-5 parts of bentonite, 6-10 parts of hydrotalcite, 6-10 parts of calcium carbonate, 0.2-3 parts of alum, 5-10 parts of polyvinyl alcohol, 0.2-3 parts of sodium tripolyphosphate and 1-5 parts of sodium carboxymethylcellulose: it is characterized in that, the catalyst is polyoxometallic acid salt form ionic liquid.Adhesive bonding force prepared by the present invention is stronger, and anticoagulant heavy effect is more preferable, and Storage period is longer.
Description
Technical field
The invention belongs to field of adhesive technology, and in particular to a kind of environmental protection amylum adhesive and preparation method thereof.
Background technique
Cardboard is mainly used to that packed in cases article is made, and facilitates storage and transport.Cardboard is generally by two layers or two layers or more
Paper bond, such as single-faced corrugated paper, composite corrugated paper.The adhesive of paper boards is usually amylum adhesive, starch
Adhesive is usually to use potassium permanganate oxidation after starch is dissolved in water, and caustic soda and borax etc. is then added and obtains, but permanganic acid
Potassium is easy to generate dark manganese dioxide under alkaline condition, can affect to environment, caustic soda and borax also can be right
The health of people damages.Importantly, the amylum adhesive made in this way is easy to appear precipitating, to cardboard
Bonding force not enough, it is slow, easy to moisture absorption from dry speed.Therefore, need to design a kind of amylum adhesive additive borax and caustic soda, and
Improve stability, cohesive force, certainly dry speed and the water resistance of adhesive.
Chinese patent CN2015104713981 discloses a kind of additive of amylum adhesive, including three components: first
Component is made of ammonium persulfate, sodium carbonate peroxide；Second component is made of Lauxite and ethylene-vinyl acetate resin；Third
Component is made of bentonite, hydrotalcite, calcium carbonate, alum, polyvinyl alcohol, sodium tripolyphosphate and sodium carboxymethylcellulose；This adds
Add agent to abandon the potassium permanganate for influencing adhesive color, starch is aoxidized using ammonium persulfate and sodium carbonate peroxide, one
Determine the transparency for improving adhesive in degree, starch be modified using Lauxite and ethylene-vinyl acetate resin,
Cementability and moisture-proof are improved.But generally, the adhesive strength, moisture-proof of amylum adhesive is used for a long time easy
It still needs further improvement for aging etc..
Summary of the invention
To solve the deficiencies in the prior art, the present invention provides a kind of environmentally friendly amylum adhesive and preparation method thereof.Specifically grind
It is as follows to study carefully scheme:
A kind of environmental protection amylum adhesive, it is characterised in that the composition including following parts by weight: 100 parts of dried corn starch,
300-500 parts of deionized water, 0.5-3 parts of sodium carbonate peroxide, 0.01-0.05 parts of catalyst, 0.5-3 parts of stabilizer, epoxy resin
20-45 parts, 3-5 parts of bentonite, 6-10 parts of hydrotalcite, 6-10 parts of calcium carbonate, 0.2-3 parts of alum, 5-10 parts of polyvinyl alcohol, trimerization
0.2-3 parts and sodium carboxymethylcellulose 1-5 parts of sodium phosphate:
The sodium carbonate peroxide is oxidant, can discharge hydrogen peroxide in situ after meeting water, the hydrogen peroxide of release being capable of oxygen
Change the hydroxyl on starch molecule, it is made to become aldehyde radical or carboxyl.It is because in the prior art that oxidant, which only selects sodium carbonate peroxide,
The ammonium persulfate chance water of addition discharges rapidly hydrogen peroxide and causes moment selective oxidation agent concentration is higher to cause overreact, causes
Product is rotten；
The catalyst is polyoxometallic acid salt form ionic liquid, and the cation of the ionic liquid is 1- ethoxy -3-
Methyl imidazolium cation, anion are [PMo11VO40]4-、[PMo10V2O40]5-、[PMo9V3O40]6-At least one of.Institute
Under the action of stating catalyst, it can preferably promote the progress of the oxidation reaction of hydrogen peroxide and starch, even if initial reaction stage dioxygen
Effecting reaction is also able to achieve in the case that water yield is seldom.Meanwhile cation be hydroxy functionalized hydroxyethyl imidazole sun from
Son can also form hydrogen bond with the hydroxyl in starch, reduce retrogradation phenomenon caused by the reunion between starch molecule；
The stabilizer is the compound of tributyl citrate and magnesium sulfate, and the two mass ratio is 10-15:1；Due to dioxygen
Water under the effect of the catalyst high-temperature oxydation starch when be extremely easy in decomposition, reduce oxidation efficiency, which acts predominantly on
In inhibiting the fast decoupled of hydrogen peroxide, improve oxidation efficiency；
The epoxy resin is poly ethyldiol modified E44 epoxy resin, and modified epoxy resin contains more hydroxyl,
The bonding effect that it be can further improve with starch molecule improves adhesive strength, while polyethylene glycol also has toughening effect, mentions
The toughness of high glue film；
The polyvinyl alcohol has active hydrogen and hydroxyl, and network structure can be cross-linked to form with starch, improves adhesive strength；
The certainly dry speed of amylum adhesive can be improved in the combination of the bentonite, hydrotalcite, calcium carbonate, wherein hydrotalcite
With non-hygroscopic well, it is conducive to moisture evaporation.And hydrotalcite also has the function of certain killing bacterium and microorganism,
It is rotten that amylum adhesive can be effectively prevented, effectively extend the storage time of amylum adhesive；
The sodium tripolyphosphate, alum all have extremely strong complexing, can be incorporated in solid particles surface, improve solid
The dissolubility of particle；
The sodium carboxymethylcellulose is a kind of macromolecule dispersing agent, has more carboxyl, these carboxyls and solid point
Son connection, charges solid particles surface, makes mutually exclusive between solid particle, cannot agglomerate and settle；
The preparation method of the amylum adhesive, specifically comprises the following steps:
(1) spare after weighing each component by formula composition；
(2) preparation of catalyst: a certain amount of 1- ethoxy -3- methylimidazole bromine is dissolved in deionized water be made into it is water-soluble
Then liquid is added dropwise heteropoly acid solution, filters after being added dropwise, filter cake deionized water and dehydrated alcohol wash, dry phosphorus molybdenum
Vanadium multi-metal oxygen hydrochlorate ionic-liquid catalyst；
(3) after mixing E-44 epoxy resin in mass ratio with polyethylene glycol, stirring 30-60min at 60-80 DEG C must be modified
Epoxy resin；
(4) alum of a certain amount of proportion, polyvinyl alcohol, sodium tripolyphosphate and sodium carboxymethylcellulose are put into stirred tank
In, add water to whole dissolutions；Then bentonite powder is added, the positive and negative anodes of 100V DC power supply are put into reaction vessel, leads to
After electric 10min, hydrotalcite powder is added, then exchange the position of positive and negative anodes and continues energization 20min, then presses above-mentioned weight ratio
Calcium carbonate powder is added, exchange the position of positive and negative anodes again and stops being powered after continuing energization 10min, heats and rises to reaction vessel
Temperature keeps the temperature 30min to 50 DEG C, is then evaporated under reduced pressure to water is all steamed, obtains compounded mix component；
(5) deionized water is first added into reaction kettle, the starch emulsion that cornstarch is made into 30-50% is then added, adds
Enter stabilizer and catalyst, increases temperature to 50-60 DEG C, sodium carbonate peroxide is added portionwise, insulation reaction 2-4h after addition
After cool down, obtain oxidized starch lotion；
(6) compounded mix component and modified epoxy are sequentially added in the lotion prepared to step (5), increases temperature extremely
50-60 DEG C, it is persistently stirred to react 1-3h, temperature is reduced, vacuumizes bubble removing, discharge to obtain environmentally friendly amylum adhesive.
The beneficial effects of the present invention are: (1) using sodium carbonate peroxide oxidant, tributyl citrate and the sulfuric acid of environmental protection
Magnesium compound and polyoxometallic acid salt form ionic liquid catalyst system realize the efficient mild oxidation of cornstarch, are guaranteeing
Also it is unlikely to excessive oxidation while starch oxidation effect；(2) polyoxometallic acid salt form ionic liquid catalyst systems can with it is multiple
Closing filler component is all ionic compound, has suitable charge, and the adhesive dispersion of preparation is more uniform；(3) modified ring
Oxygen resin can promote can be with hydroxyl, carboxyl and the aldehyde radical in oxidized starch, the polyvinyl alcohol active hydrogen in compounded mix system, hydroxyl
The complexing of base and alum and sodium tripolyphosphate keeps the adhesive bonding force of preparation stronger, and anticoagulant heavy effect is more preferable, storage
Phase is longer.
Specific embodiment
The present invention will be further described with reference to the examples below, and described embodiment is only present invention a part
Embodiment.Based on the embodiment of the present invention, those skilled in the art replace in being equal of not making that creative work done
It changes or improves, all within protection scope of the present invention.
The catalyst is polyoxometallic acid salt form ionic liquid, and the cation of the ionic liquid is 1- ethoxy -3-
Methyl imidazolium cation, anion are [PMo11VO40]4-、[PMo10V2O40]5-、[PMo9V3O40]6-At least one of.Institute
Under the action of stating catalyst, it can preferably promote the progress of the oxidation reaction of hydrogen peroxide and starch, even if initial reaction stage dioxygen
Effecting reaction is also able to achieve in the case that water yield is seldom.Meanwhile cation be hydroxy functionalized hydroxyethyl imidazole sun from
Son, can also with the hydroxyl in starch formed hydrogen bond, reduce starch molecule between reunion, caused by retrogradation phenomenon；With
[PMo11VO40]4-For anion, the synthetic route of catalyst of the present invention is as follows:
1- ethoxy -3- methylimidazole bromine (40mmol, 8.24g) is dissolved in 25mL deionized water and is made into aqueous solution, so
After H is added dropwise4[PMo11VO40] (3.33g, 10mmol) aqueous solution, filtered after being added dropwise, filter cake deionized water and anhydrous second
Alcohol washing, dry phosphorus molybdenum-vanadium multi-metal oxygen hydrochlorate ionic-liquid catalyst.
The above method is universal method, when anion selects [PMo10V2O40]5-、[PMo9V3O40]6-When, preparation method and this
Route is identical, is only that the molar ratio of 1- ethoxy -3- methylimidazole bromine and heteropoly acid is set to 5:1 or 6:1.
Stabilizer of the present invention is the compound of tributyl citrate and magnesium sulfate, and the two mass ratio is 10-15:1, tool
Preparation is that magnesium sulfate is added in tributyl citrate, and vacuum dispersion is made.
Oxidation processes are carried out to cornstarch respectively using the catalyst of above-mentioned preparation, stabilizer, prepare amylum adhesive,
Specific embodiment is as follows:
Embodiment 1.
A kind of environmental protection amylum adhesive, it is characterised in that the composition including following parts by weight: 100 parts of dried corn starch,
350 parts of deionized water, 0.6 part of sodium carbonate peroxide, 0.03 part of catalyst, 1 part of stabilizer, 30 parts of modified epoxy, bentonite 4
Part, 7 parts of hydrotalcite, 7 parts of calcium carbonate, 0.4 part of alum, 8 parts of polyvinyl alcohol, 1 part of sodium tripolyphosphate and sodium carboxymethylcellulose 2
Part.
(1) spare after weighing each component by formula composition；
(2) stirring 40min at 65 DEG C being added in stirred tank in E-44 epoxy resin 20g and polyethylene glycol 400 10g must change
Property epoxy resin；
(3) alum 0.4g, polyvinyl alcohol 8g, sodium tripolyphosphate 1g and sodium carboxymethylcellulose 2g are put into stirred tank,
Add water to whole dissolutions；Then bentonite 4g is added, the positive and negative anodes of 100V DC power supply are put into reaction vessel, is powered
After 10min, hydrotalcite 7g is added, then exchange the position of positive and negative anodes and continues energization 20min, is then added by above-mentioned weight ratio
Calcium carbonate 7g exchanges the position of positive and negative anodes again and stops being powered after continuing energization 10min, is heated to 50 to reaction vessel
DEG C, and 30 minutes are kept the temperature, it is then evaporated under reduced pressure to water is all steamed, obtains compounded mix component；
(4) deionized water 350g is first added into reaction kettle, the starch emulsion that cornstarch is made into 35% is then added, adds
Enter stabilizer 1g and catalyst 0.03g, increases temperature to 50-60 DEG C, divide 2 crowdes of addition sodium carbonate peroxide 0.6g, after addition
Cool down after insulation reaction 2-4h, obtains oxidized starch lotion；
(5) compounded mix component and modified epoxy are sequentially added in the lotion prepared to step (4), increases temperature extremely
50-60 DEG C, it is persistently stirred to react 1-3h, temperature is reduced, vacuumizes bubble removing, discharge to obtain environmentally friendly amylum adhesive.
Embodiment 2.
A kind of environmental protection amylum adhesive, it is characterised in that the composition including following parts by weight: 100 parts of dried corn starch,
400 parts of deionized water, 1 part of sodium carbonate peroxide, 0.03 part of catalyst, 2 parts of stabilizer, 30 parts of epoxy resin, 5 parts of bentonite, water
7 parts of talcum, 10 parts of calcium carbonate, 0.8 part of alum, 7 parts of polyvinyl alcohol, 2 parts of sodium tripolyphosphate and 4 parts of sodium carboxymethylcellulose.
The preparation method is the same as that of Example 1.
Embodiment 3.
A kind of environmental protection amylum adhesive, it is characterised in that the composition including following parts by weight: 100 parts of dried corn starch,
400 parts of deionized water, 2 parts of sodium carbonate peroxide, 0.02 part of catalyst, 1 part of stabilizer, 30 parts of epoxy resin, 4 parts of bentonite, water
7 parts of talcum, 10 parts of calcium carbonate, 1 part of alum, 6 parts of polyvinyl alcohol, 2 parts of sodium tripolyphosphate and 3 parts of sodium carboxymethylcellulose.
To adhesive prepared in the above embodiments and patent CN201510471398.1 preparation adhesive airdrying time,
Peel strength and Storage period compare, and the results are shown in Table 1.
The visible adhesive prepared by the present invention of data is obvious in terms of airdrying time, storage time and peel strength from table
Better than the prior art.
The environmentally friendly amylum adhesive performance parameter of table 1.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of environmental protection amylum adhesive, the composition including following parts by weight: 100 parts of dried corn starch, deionized water 300-
500 parts, 0.5-3 parts of sodium carbonate peroxide, 0.01-0.05 parts of catalyst, 0.5-3 parts of stabilizer, 20-45 parts of epoxy resin, swelling
3-5 parts native, 6-10 parts of hydrotalcite, 6-10 parts of calcium carbonate, 0.2-3 parts of alum, 5-10 parts of polyvinyl alcohol, sodium tripolyphosphate 0.2-3
Part and sodium carboxymethylcellulose 1-5 parts；It is characterized in that, the catalyst is polyoxometallic acid salt form ionic liquid.
2. a kind of environmentally friendly amylum adhesive according to claim 1, which is characterized in that the polyoxometallic acid salt form ionic liquid
Body cation is 1- ethoxy -3- methyl imidazolium cation, and anion is [PMo11VO40]4-、[PMo10V2O40]5-、
[PMo9V3O40]6-At least one of.
3. a kind of environmentally friendly amylum adhesive according to claim 1, which is characterized in that the stabilizer is tributyl citrate
With the compound of magnesium sulfate, the two mass ratio is 10-15:1.
4. a kind of environmentally friendly amylum adhesive according to claim 1, which is characterized in that the epoxy resin changes for polyethylene glycol
Property E44 epoxy resin.
5. the preparation method of environment-friendly adhesive of any of claims 1-4, specifically comprises the following steps:
(1) spare after weighing each component by formula composition；
(2) preparation of catalyst: a certain amount of 1- ethoxy -3- methylimidazole bromine being dissolved in deionized water and is made into aqueous solution,
Then heteropoly acid solution is added dropwise, is filtered after being added dropwise, filter cake deionized water and dehydrated alcohol wash, are dry that phosphorus molybdenum vanadium is more
Oxometallate ionic-liquid catalyst；
(3) 30-60min, which is stirred, after mixing E-44 epoxy resin in mass ratio with polyethylene glycol, at 60-80 DEG C obtains modified epoxy
Resin；
(4) alum of a certain amount of proportion, polyvinyl alcohol, sodium tripolyphosphate and sodium carboxymethylcellulose are put into stirred tank, are added
Water is to whole dissolutions；Then bentonite powder is added, the positive and negative anodes of 100V DC power supply are put into reaction vessel, is powered
After 10min, hydrotalcite powder is added, then exchange the position of positive and negative anodes and continues energization 20min, then adds by above-mentioned weight ratio
Enter calcium carbonate powder, exchange the position of positive and negative anodes again and stop being powered after continuing energization 10min, gives reaction vessel heat temperature raising
To 50 DEG C, and 30min is kept the temperature, is then evaporated under reduced pressure to water is all steamed, obtains compounded mix component；
(5) deionized water is first added into reaction kettle, the starch emulsion that cornstarch is made into 30-50% is then added, is added steady
Determine agent and catalyst, increases temperature to 50-60 DEG C, sodium carbonate peroxide is added portionwise, is dropped after insulation reaction 2-4h after addition
Temperature obtains oxidized starch lotion；
(6) compounded mix component and modified epoxy are sequentially added in the lotion prepared to step (5), increases temperature to 50-
60 DEG C, it is persistently stirred to react 1-3h, temperature is reduced, vacuumizes bubble removing, discharge to obtain environmentally friendly amylum adhesive.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113136154A (en) * | 2020-01-20 | 2021-07-20 | 华南理工大学 | Green low-toxicity high-viscosity polyoxometallate-based glass adhesive as well as preparation method and application thereof |
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| WO2011002730A1 (en) * | 2009-06-29 | 2011-01-06 | Owens Corning Intellectual Capital, Llc | Modified starch based binders |
| CN102732186A (en) * | 2012-07-12 | 2012-10-17 | 华东理工大学 | Modified starch adhesive and method for preparing same |
| CN105062381A (en) * | 2015-08-05 | 2015-11-18 | 广西银洲科技有限公司 | Starch binder additive, and preparation method and application method thereof |
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2019
- 2019-08-22 CN CN201910780761.6A patent/CN110437765B/en active Active
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| WO2011002730A1 (en) * | 2009-06-29 | 2011-01-06 | Owens Corning Intellectual Capital, Llc | Modified starch based binders |
| CN102732186A (en) * | 2012-07-12 | 2012-10-17 | 华东理工大学 | Modified starch adhesive and method for preparing same |
| CN105062381A (en) * | 2015-08-05 | 2015-11-18 | 广西银洲科技有限公司 | Starch binder additive, and preparation method and application method thereof |
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| CN113136154A (en) * | 2020-01-20 | 2021-07-20 | 华南理工大学 | Green low-toxicity high-viscosity polyoxometallate-based glass adhesive as well as preparation method and application thereof |
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Effective date of registration: 20200820 Address after: 751600 Qingtongxia Industrial Park (Qinshui Road), Wuzhong City, Ningxia Hui Autonomous Region Applicant after: Ningxia Jihong environmental protection packaging technology Co., Ltd Address before: 325014 Second Floor, 61 Tangxi Road, Wutian Street, Ouhai District, Wenzhou City, Zhejiang Province Applicant before: WENZHOU BAOLU NEW MATERIAL Co.,Ltd. |
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