CN106256836A - A kind of environment-friendly type starch base wallpaper glue modified starch and preparation method thereof - Google Patents
A kind of environment-friendly type starch base wallpaper glue modified starch and preparation method thereof Download PDFInfo
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- CN106256836A CN106256836A CN201610395714.6A CN201610395714A CN106256836A CN 106256836 A CN106256836 A CN 106256836A CN 201610395714 A CN201610395714 A CN 201610395714A CN 106256836 A CN106256836 A CN 106256836A
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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
- C08B31/003—Crosslinking of starch
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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
- C08B31/02—Esters
- C08B31/04—Esters of organic acids, e.g. alkenyl-succinated 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
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/04—Starch derivatives
- C09J103/06—Esters
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention belongs to starch conversion and in wallpaper glue applied technical field, particularly to a kind of environment-friendly type starch base wallpaper glue modified starch and preparation method thereof.A kind of environment-friendly type starch base wallpaper glue modified starch, it is to be prepared by the raw material of following weight portion meter: ative starch 100 parts, 2.7 ~ 7.8 parts of alkali, sodium citrate 0.5 ~ 1.4 part, sodium ethylene diamine tetracetate 0.2 ~ 1.0 part, sodium trimetaphosphate 0.3 ~ 1.2 part, acetic anhydride 3.0 ~ 7.5 parts, 300 parts of water.Sodium citrate in formula and disodiumedetate on the one hand can effective heavy-metal ion removal, another aspect makes the wallpaper glue color and luster made white, it is not easy to thinningization water.
Description
Technical field
The invention belongs to starch conversion and in wallpaper glue applied technical field, particularly to a kind of environment-friendly type starch base
Wallpaper glue modified starch and preparation method thereof.
Background technology
Wallpaper glue is mainly used to sticking wallpaper and wall cloth, is the conventional a kind of adhesive of building materials decoration industry, clings wallpaper
It is most basic function with the service life of guarantee wallpaper.Common wallpaper glue is many coordinates polymerization glue to be main with starch glue powder
Raw material, wherein starch glue powder is owing to PH is high, salt content is high, and wallpaper easily causes the harmful effects such as variable color；In polymerization glue
The nuisance content such as formaldehyde, benzene is high, and health produces harm, especially healthy and safe at consumer's pay attention to day by day and pursuit
With the epoch of environmental-protecting performance, the market of chemical industry adhesive faces severe test, the substitute is starch base wallpaper glue.Starch
Wide material sources, huge number, is Renewable resource, environment protection health, is rare in the gluing product of building decorating industry can biological to drop
Solve, without formaldehyde, totally nontoxic, harmless, the healthy product of environmental protection, wallpaper cohesive force can be effectively improved and prevent wallpaper
The defect such as jaundice, cracking, alice.
Produce at present wallpaper glue starch many with modified starch, ative starch as primary raw material, due to use modified starch with
Ative starch mixing formula, the reason such as cause the ageing resistace of starch in wallpaper glue, freeze-thaw resistance, cohesive force unbalanced, this
Bright starch is carried out suitable starch conversion, use the production technology of food grade modified starch, it is ensured that wallpaper glue ring health care simultaneously
Health.
Summary of the invention
The present invention provides a kind of environment-friendly type starch base wallpaper glue modified starch, has health environment-friendly, low cost, preparation side
The advantages such as method is simple, and reaction condition is gentle.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of environment-friendly type starch base wallpaper glue modified starch, it is to be prepared by the raw material of following weight portion meter: ative starch
100 parts, alkali 2.7～7.8 parts, sodium citrate 0.5～1.4 parts, sodium ethylene diamine tetracetate 0.2～1.0 parts, sodium trimetaphosphate
0.3～1.2 part, acetic anhydride 3.0～7.5 parts, 300 parts of water.Sodium citrate in formula and disodiumedetate one side
Face can effective heavy-metal ion removal, on the other hand make the wallpaper glue color and luster made white, it is not easy to thinningization water.
Inventive formulation use sodium carbonate and sodium hydroxide are applied in combination, less to starch injury.Use alkali liquor
Combined coefficient is high, and the modified starch products impurity of production is less, and effect is more preferable；Particularly with the addition of removal of heavy metal ions agent and
Finally clean with softening water, considerably reduce the content of beary metal in starch, improve the easy variable color of wallpaper glue, corruption
Difficult point.
As preferably, described ative starch is potato starch, tapioca, corn starch, wheaten starch or rice starch
The mixture of one or more.
As preferably, described alkali is selected from one or more the group in sodium bicarbonate, sodium carbonate or sodium hydroxide
Close.As preferably, described alkali is the combination of sodium carbonate and sodium hydroxide, wherein sodium hydroxide 1.5～7.5 parts, sodium carbonate
0.3～1.2 part.
The preparation method of a kind of described environment-friendly type starch base wallpaper glue modified starch, the method comprises the steps:
1) alkali is completely dissolved in suitable quantity of water, stirring, it is ensured that do not have solid precipitation, the alkali liquor obtained, and is lowered the temperature
It is standby to 15-20 DEG C,
Ative starch, sodium citrate and sodium ethylene diamine tetracetate are added the water of formula surplus dissolves stirring 25-30min
Obtain starch milk, be cooled to 15-20 DEG C；
2) alkali liquor configured is slowly added in starch milk, in the range of pH to the 12.0-12.2 of regulation starch milk, then
Adding sodium trimetaphosphate, the alkali liquor of continuation simultaneously maintains starch milk pH stable in the range of 12.0-12.2；
3) step 2) after the mixed liquor that obtains reacts 5-7h at a temperature of 28-35 DEG C, with acid for adjusting pH to 8.1-8.3 scope
In；
4) to step 3) in the mixed liquor that obtains, drip alkali liquor, on one side dropping acetic anhydride, the dropping controlling both is fast
Degree, makes starch milk pH carry out acetylization reaction in the range of maintaining 8.2-8.3；After dropping, continue reaction 40-50 minute,
It is 6.0-6.5 with acid for adjusting pH, obtains modified starch serosity；
5) modified starch serosity is scrubbed, be dehydrated, be dried, and obtains product.
As preferably, the hot blast of 100-130 DEG C when being dried, is used to carry out pneumatic conveying drying.
The present invention compared with prior art, has the advantage that
1) food starch such as Rhizoma Solani tuber osi, Maninot esculenta crantz., Semen Maydis, Semen Tritici aestivi, Glutinous Semen Maydis and Oryza glutinosa and rice starch is utilized to adopt for raw material
Prepare different Adhesive wall paper glue modified starch with first cross-linking the technique being esterified afterwards, solve common wallpaper glue modified starch resistance to
Shear at high temperature is poor, winter the problem such as the easy ageing hardening of wallpaper glue, the most whole technical process uses food stage modified starch raw
Production. art, promotes the environmental protection affinity of wallpaper glue further.
2) use sodium carbonate as reaction catalyst, it is possible to higher temperatures without alcohol, simple aqueous phase, without adding inorganic salt
Under conditions of synthesize wallpaper glue modified starch, sodium carbonate can prevent the gelatinizing of starch, can participate in again catalytic starch esterification
Reaction, increases the concentration of starch reaction system, improves the reaction efficiency of reagent, and the reaction yield improving starch is increased by 88～90%
It is added to 92～95%, eliminates the problem that Organic Alcohol is high to the pollution of environment and recovery cost simultaneously；
3) starch that preparation method of the present invention obtains has good frost resistance and caking property, freeze thawing capable of circulation more than 3 times
(in subzero 30 DEG C of refrigerators freezing 24 hours, taking out at thaw at RT 24 hours is a circulation), product not bleed, viscosity is not
Decline, as before freeze thawing, solve wallpaper glue and be weak to freeze winter, in-convenience in use etc. problem；Additionally, starch of the present invention can
Substitute chemical industry material such as polyvinyl alcohol, the white glue with vinyl etc. added in conventional wallpaper glue, the glue made and all with chemical industry material
Unanimously, reduce pollution and health hazard, reduce cost simultaneously.
Detailed description of the invention
Below by specific embodiment, technical scheme is described in further detail.Should be appreciated that this
Bright enforcement is not limited to the following examples, and any pro forma accommodation and/or the change of being made the present invention all will fall
Enter scope.
In the present invention, if not refering in particular to, all of part, percentage ratio are unit of weight, the equipment used and raw material etc.
All it is commercially available or commonly used in the art.Method in following embodiment, if no special instructions, is the normal of this area
Rule method.
Embodiment 1-4
A kind of environment-friendly type starch base wallpaper glue modified starch, parts by weight of raw materials composition is shown in Table 1.
Table 1 (kg)
The preparation process of environment-friendly type starch base wallpaper glue modified starch is as follows:
1) according to proportioning in table 1, sodium carbonate and sodium hydroxide are completely dissolved in 150kg water, and (this part water calculates and is joining
In side's amount) in, stir 60min, it is ensured that there is no solid precipitation, be cooled to by the mixed alkali liquor obtained with plate type heat exchanger simultaneously
15-20 DEG C is standby,
Ative starch, sodium citrate and sodium ethylene diamine tetracetate are added 150kg water (this part water calculates in formula ratio)
The middle stirring 25min that dissolves obtains starch milk, with plate type heat exchanger, starch milk is cooled to 15-20 DEG C；
2) mixed alkali liquor configured is slowly added in starch milk, in the range of pH to the 12.0-12.2 of regulation starch milk,
Being subsequently adding sodium trimetaphosphate (starch cross-linking agent), the mixed alkali liquor of continuation simultaneously maintains starch milk pH stable at 12.0-12.2
In the range of；
3) step 2) after the mixed liquor that obtains reacts 5h at a temperature of 35 DEG C, with the salt acid for adjusting pH that mass concentration is 10%
In the range of 8.1-8.3；
4) to step 3) in the mixed liquor that obtains, drip mixed alkali liquor, on one side dropping acetic anhydride, control both droplet
Acceleration, makes starch milk pH carry out acetylization reaction in the range of maintaining 8.2-8.3.After dropping, continue reaction 40 minutes,
It is 6.0-6.5 with the salt acid for adjusting pH that mass concentration is 10%, obtains modified starch serosity.
5) modified starch serosity washing, be dehydrated, be dried:
Washing: first by disc separator separation above-mentioned steps 4) modified starch serosity in organic impurities and reaction in remain
Class chemical industry material and impurity, use 5 grades of eddy flow scrubbers to carry out countercurrent washing afterwards, remove further all kinds of impurity；
It is dehydrated, is dried: use vacuum drum to be dehydrated after washing, carry out pneumatic conveying drying with the hot blasts of 110 DEG C, it is thus achieved that ring
Guarantor's type starch base wallpaper glue modified starch.
Being measured the modified starch obtained, its performance is as shown in table 2:
Table 2
Application: the making of wallpaper glue
The wallpaper glue modified starch 200g that Example 1 prepares, adds the water furnishing starch milk of 800g, adds food
Level preservative and antifungus agent, in polymer reactor, Heat Gelatinization is to see-through look, and after constant temperature 15～30min, subpackage is the most available
Environment-friendly type wallpaper glue stick finished product.
The performance detection data of wallpaper glue and other wallpaper glue stick performance comparison data commercially available are shown in Table 3.
Table 3
Other embodiments of the invention are also adopted by said method and detect, and its testing result is close with the data of embodiment 1.
By relative analysis above, production wallpaper Adhensive performance of the present invention is close with commercially available prod performance, or exceed commercially available greatly
Part wallpaper glue product, but production cost is that like product is minimum, and product cost is the highest.
Embodiment described above is the one preferably scheme of the present invention, not makees the present invention any pro forma
Limit, on the premise of without departing from the technical scheme described in claim, also have other variant and remodeling.
Claims (6)
1. an environment-friendly type starch base wallpaper glue modified starch, it is characterised in that it is by the raw material system of following weight portion meter
: ative starch 100 parts, 2.7 ~ 7.8 parts of alkali, sodium citrate 0.5 ~ 1.4 part, sodium ethylene diamine tetracetate 0.2 ~ 1.0 part, three is inclined
Sodium phosphate 0.3 ~ 1.2 part, acetic anhydride 3.0 ~ 7.5 parts, 300 parts of water.
Environment-friendly type starch base wallpaper glue modified starch the most according to claim 1, it is characterised in that: described ative starch
The mixture of one or more for potato starch, tapioca, corn starch, wheaten starch or rice starch.
Environment-friendly type starch base wallpaper glue modified starch the most according to claim 1, it is characterised in that: described alkali is selected from
One or more combination in sodium bicarbonate, sodium carbonate or sodium hydroxide.
Environment-friendly type starch base wallpaper glue modified starch the most according to claim 3, it is characterised in that: described alkali is carbon
Acid sodium and the combination of sodium hydroxide, wherein sodium hydroxide 1.5 ~ 7.5 parts, sodium carbonate 0.3 ~ 1.2 part.
5. the preparation method of the environment-friendly type starch base wallpaper glue modified starch described in a claim 1, it is characterised in that should
Method comprises the steps:
1) alkali is completely dissolved in suitable quantity of water, stirring, it is ensured that do not have solid precipitation, the alkali liquor obtained, and is cooled to 15-
20 DEG C are standby,
Ative starch, sodium citrate and sodium ethylene diamine tetracetate add dissolving stirring 25-30min in the water of formula surplus obtain
Starch milk, is cooled to 15-20 DEG C；
2) alkali liquor configured is slowly added in starch milk, in the range of pH to the 12.0-12.2 of regulation starch milk, then
Adding sodium trimetaphosphate, the alkali liquor of continuation simultaneously maintains starch milk pH stable in the range of 12.0-12.2；
3) step 2) after the mixed liquor that obtains reacts 5-7h at a temperature of 28-35 DEG C, with acid for adjusting pH to 8.1-8.3 model
In enclosing；
4) to step 3) in the mixed liquor that obtains, drip alkali liquor, drip acetic anhydride on one side, control both rate of addition,
Starch milk pH is made to carry out acetylization reaction in the range of maintaining 8.2-8.3；After dropping, continue reaction 40-50 minute, use
Acid for adjusting pH is 6.0-6.5, obtains modified starch serosity；
5) modified starch serosity is scrubbed, be dehydrated, be dried, and obtains product.
Preparation method the most according to claim 5, it is characterised in that: use the hot blast of 100-130 DEG C to carry out gas when being dried
Fluidized drying.
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| CN201610395714.6A CN106256836B (en) | 2016-06-06 | 2016-06-06 | A kind of environment-friendly type starch base wallpaper glue converted starch and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106916551A (en) * | 2017-04-06 | 2017-07-04 | 合肥欧克斯新型建材有限公司 | A kind of Wall paper adhesive and preparation method thereof |
| CN107141963A (en) * | 2017-06-22 | 2017-09-08 | 合肥月煌新型装饰材料有限公司 | A kind of environment-friendly type antibiotic anticorrosive paint and preparation method thereof |
| CN108774478A (en) * | 2018-06-29 | 2018-11-09 | 安吉欧也钣金科技有限公司 | Glutinous rice glue and preparation method thereof for pasting wallpaper |
| CN115093488A (en) * | 2022-08-11 | 2022-09-23 | 吉林省正豪改性淀粉科技开发有限公司 | Modified starch for environment-friendly wallpaper adhesive and preparation method thereof |
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| EP0311873A2 (en) * | 1987-10-12 | 1989-04-19 | Henkel Kommanditgesellschaft auf Aktien | Process for the preparation of a dry product useful as base material for an adhesive |
| CN1310751A (en) * | 1998-07-23 | 2001-08-29 | 马铃薯及衍生产品合作销售生产阿韦贝公司 | Adhesive composition |
| CN103819697A (en) * | 2014-02-28 | 2014-05-28 | 廖乐隽 | Preparation method of corn modified starch |
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| EP0311873A2 (en) * | 1987-10-12 | 1989-04-19 | Henkel Kommanditgesellschaft auf Aktien | Process for the preparation of a dry product useful as base material for an adhesive |
| CN1310751A (en) * | 1998-07-23 | 2001-08-29 | 马铃薯及衍生产品合作销售生产阿韦贝公司 | Adhesive composition |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106916551A (en) * | 2017-04-06 | 2017-07-04 | 合肥欧克斯新型建材有限公司 | A kind of Wall paper adhesive and preparation method thereof |
| CN107141963A (en) * | 2017-06-22 | 2017-09-08 | 合肥月煌新型装饰材料有限公司 | A kind of environment-friendly type antibiotic anticorrosive paint and preparation method thereof |
| CN108774478A (en) * | 2018-06-29 | 2018-11-09 | 安吉欧也钣金科技有限公司 | Glutinous rice glue and preparation method thereof for pasting wallpaper |
| CN115093488A (en) * | 2022-08-11 | 2022-09-23 | 吉林省正豪改性淀粉科技开发有限公司 | Modified starch for environment-friendly wallpaper adhesive and preparation method thereof |
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| CN106256836B (en) | 2018-10-30 |
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