CN109054662A - A kind of water-resistant type starch base trademark adhesive - Google Patents
A kind of water-resistant type starch base trademark adhesive Download PDFInfo
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- CN109054662A CN109054662A CN201810827610.7A CN201810827610A CN109054662A CN 109054662 A CN109054662 A CN 109054662A CN 201810827610 A CN201810827610 A CN 201810827610A CN 109054662 A CN109054662 A CN 109054662A
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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
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
-
- 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
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F2003/023—Adhesive
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention discloses a kind of water-resistant type starch base trademark adhesives, belong to binder preparation technical field.The present invention crushes bamboo fibre, crosses the sieve of 120 mesh, obtains bamboo fibre powder, according to parts by weight, by 20~30 parts of bamboo fibre powder, 3~5 parts of biogas slurries, 1~2 part of glycerol, 1~2 part of glucose solution, 3~40 parts of water mixed fermentations, filtering, liquid nitrogen frozen, ball milling, cross the sieve of 240 mesh, drying is to get modified additive, by pretreated starch liquid, modified additive, butyl acrylate, vinylacetate, acrylic acid, it is modified montmorillonite used, chitosan liquid, crosslinking agent and rare earth are stirred to get water-resistant type starch base trademark adhesive.Water-resistant type starch base trademark adhesive provided by the invention has excellent water resistance and mechanical property.
Description
Technical field
The invention discloses a kind of water-resistant type starch base trademark adhesives, belong to binder preparation technical field.
Background technique
Can by two or more homogeneity or heterogeneous product or material by surface be closely integrated into one it is whole
Body, organic or inorganic after solidification with sufficient intensity a, natural or synthetic substance are known as adhesive.It can be divided into organic
Adhesive and inorganic adhesive.The ripe title trademark adhesive of trade mark adhesive, is widely used in the outer packing process of the products such as carton, food.
Trademark adhesive generally requires that adhesion strength big, good fluidity, curing time be short, low tempertaure storage does not fall to be marked with and in wet environment
In the features such as never degenerating.
General requirement to trademark adhesive is good fluidity, and initial adhesion force is strong, and rate of drying is fast, and properties are stablized.It is general at present
There are casein class, plant proteins, chemical glue, amylan and modified starch adhesive all over the trademark adhesive type used.Casein class
Although trademark adhesive comprehensive performance is fine, its cost is very high.Plant proteins trademark adhesive is although cheap, but caking property is not
By force, poor water resistance causes to be commonly used.Chemical glue is due to the seriously polluted demand for having been unable to meet people.Amylan
It is using starch as natural adhesive made of base-material.Starch is the natural polymer that green plants is generated by photosynthesis, institute
Belong to plant glue with amylan.The low in raw material price of amylan and modified starch adhesive, and it is more next as a kind of renewable resource
It is more narrowed by the blueness of people, especially the industrial production of adhesive develops towards low cost, non-harmful direction in recent years, starch
Adhesive makes it be better than other adhesives in various aspects as natural reproducible adhesive.But trademark adhesive traditional at present is also
There is a problem of that water resistance and mechanical property are bad, therefore also needs to study it.
Summary of the invention
The present invention solves the technical problem of: it is asked for conventional labels glue water resistance and mechanical property are bad
Topic, provides a kind of water-resistant type starch base trademark adhesive.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of water-resistant type starch base trademark adhesive, is made of the raw material of following parts by weight:
60~80 parts of pretreated starch liquid
Modified 20~30 parts of additive
5~8 parts of butyl acrylate
5~8 parts of vinylacetate
5~8 parts of acrylic acid
Modified montmorillonite used 10~20 parts
20~30 parts of chitosan liquid
5~6 parts of crosslinking agent
8~10 parts of rare earth
The preparation process of the water-resistant type starch base trademark adhesive are as follows: weigh each raw material by raw material composition and change pretreated starch liquid
Property additive, butyl acrylate, vinylacetate, acrylic acid is modified montmorillonite used, chitosan liquid, and crosslinking agent and rare earth stirring are mixed
It closes to get water-resistant type starch base trademark adhesive.
The preparation process of the pretreated starch liquid are as follows: stir cornstarch and water 1:10~1:20 in mass ratio mixed
It closes, salt acid for adjusting pH is then added dropwise to 2.1~2.4, it is molten to be subsequently added into 0.05~0.08 times of cornstarch quality of potassium permanganate
Liquid is stirred, and 0.1~0.2 times of cornstarch quality of sodium hydroxide solution is then added and is mixed to get pretreatment shallow lake
Powder liquid.
The preparation process of the modified additive are as follows: bamboo fibre is crushed, the sieve of 120 mesh is crossed, obtains bamboo fibre powder, by weight
Number meter, by 20~30 parts of bamboo fibre powder, 3~5 parts of biogas slurries, 1~2 part of glycerol, 1~2 part of glucose solution, 3~40 parts of water are mixed
Fermentation is closed, filtering, liquid nitrogen frozen, ball milling crosses the sieve of 240 mesh, dry to get modified additive.
The modified montmorillonite used preparation process are as follows: stir ca-montmorillonite and water 1:10~1:20 in mass ratio mixed
It closes, is subsequently added into 0.2~0.3 times of ca-montmorillonite quality of sodium carbonate, constant temperature is stirred to react, and ca-montmorillonite matter is then added
The octadecyltrimethylammonium chloride of 0.4~0.5 times of amount, water bath with thermostatic control processing is dry, obtains modified montmorillonite used.
The preparation process of the chitosan liquid are as follows: chitosan is mixed with water 1:50~1:100 in mass ratio, stands swelling
Afterwards, heating stirring dissolution is to get chitosan liquid.
The crosslinking agent is any one in glutaraldehyde or terephthalaldehyde.
The rare earth is gadolinium nitrate, samaric nitrate, any one in cerous nitrate or yttrium nitrate.
The beneficial effects of the present invention are:
(1) present invention is by adding modified additive, during the preparation process, firstly, by bamboo fibre powder, biogas slurry, glycerol, glucose
Solution and water mixed fermentation, under the fermentation of microorganism, the cellulose of bamboo fibre long-chain is effectively cut into tiny chain
Section recycles liquid nitrogen processing, makes to form ice crystal in fibrocyte, then through ball milling, the work so that ice crystal in cell wall is under pressure
With and rupture so that fiber hydrolization is at nano-scale fiber whisker, when system is by external force, stress is from fibrous matrix to fibre
Dimension transmitting, fiber and matrix, which generate in Relative sliding withdrawal process, can absorb more friction energies, so that the mechanics of system
Performance is further promoted；
(2) present invention is modified montmorillonite used by adding, and since the level of montmorillonite is negatively charged, and montmorillonite lamella end face band is just
Charge, level and the end face of montmorillonite chip can mutually overlap because of electrostatic attraction, so that the mobile performance of system is improved, have
After machine quaternary ammonium salt cationic enters the interlayer of montmorillonite by ion exchange, due to intermolecular spatial volume effect, it can incite somebody to action
Hydrone between montmorillonite layer squeezes out, while the long alkane chain group in octadecyl ammonium salt cation is formed between montmorillonite layer
Organic phase shields the hydrophilic radical between montmorillonite layer to tile the arrangement mode that can tiltedly stand in the interlamination region of montmorillonite,
In use process, being inserted into for hydrone is effectively prevented, so that the water resistance of system gets a promotion.
Specific embodiment
Cornstarch and water 1:10~1:20 in mass ratio are placed in No. 1 beaker, in revolving speed be 300~500r/min item
Under part, it is stirred 40~60min, the hydrochloric acid tune that mass fraction is 20~30% is then added dropwise into No. 1 beaker with rubber head dropper
PH to 2.1~2.4 is saved, it is 8~10% that 0.05~0.08 times of mass fraction of cornstarch quality is then added into No. 1 beaker
Liquor potassic permanganate is stirred 40~60min under the conditions of revolving speed is 300~500r/min, adds then in No. 1 beaker
Enter 0.1~0.2 times of mass fraction of cornstarch quality be 10~20% sodium hydroxide solution, in revolving speed be 300~500r/min
Under the conditions of, 40~60min is stirred to get pretreated starch liquid；Bamboo fibre is placed in pulverizer and is crushed, 120 purposes are crossed
Sieve, obtains bamboo fibre powder, according to parts by weight, by 20~30 parts of bamboo fibre powder, 3~5 parts of biogas slurries, 1~2 part of glycerol, 1~2 part of matter
Measure the glucose solution that score is 0.3~0.5%, 3~40 parts of water are placed in fermentation cauldron, in revolving speed be 100~200r/min, temperature
Under the conditions of degree is 30~35 DEG C, mixed fermentation 3~5 days, fermentation mixed liquor is obtained, then fermentation mixed liquor is filtered, obtain filter cake, then
By filter cake liquid nitrogen frozen, material must be freezed, then freezing pellet is ground, the sieve of 240 mesh is crossed, obtains ball milling material, then set ball milling material
It is dried in vacuum freezing drying oven to get modified additive；Ca-montmorillonite and water 1:10~1:20 in mass ratio are placed in 2
In number beaker, and No. 2 beakers are placed in water-bath, are 50~60 DEG C in temperature, under the conditions of revolving speed is 400~600r/min, add
Thermal agitation mixes 30~50min, and 0.2~0.3 times of ca-montmorillonite quality of sodium carbonate, Yu Wen are then added into No. 2 beakers
Degree is 55 DEG C, and under the conditions of revolving speed is 400~600r/min, constant temperature is stirred to react 2~3h, then to addition calcium base in No. 2 beakers
The octadecyltrimethylammonium chloride that 0.4~0.5 times of montmorillonite quality is 85 DEG C in temperature, and revolving speed is 400~600r/min item
Under part, after constant temperature is stirred to react 2~3h, obtains mixed liquor, then mixed liquor be placed in baking oven, in temperature be 105~110 DEG C of items
It is dry to constant weight under part, it obtains modified montmorillonite used；Chitosan and water 1:50~1:100 in mass ratio are placed in No. 3 beakers, used
Glass bar stirs 20~30min, and after standing 3~5h of swelling, heating stirring mixes 40~60min, obtains chitosan liquid；By weight
Number meter, 60~80 parts of pretreated starch liquid, 20~30 parts of modified additives, 5~8 parts of butyl acrylates, 5~8 parts of vinyl acetates
Ester, 5~8 parts of acrylic acid, 10~20 parts modified montmorillonite used, 20~30 parts of chitosan liquid, 5~6 parts of crosslinking agents and 8~10 parts of rare earths
It is placed in batch mixer, under the conditions of revolving speed is 600~800r/min, is stirred 40~60min to get water-resistant type starch disjunction mark
Sign glue.The crosslinking agent is any one in glutaraldehyde or terephthalaldehyde.The rare earth is gadolinium nitrate, samaric nitrate, nitric acid
Any one in cerium or yttrium nitrate.
Example 1
Cornstarch and water 1:20 in mass ratio are placed in No. 1 beaker, under the conditions of revolving speed is 500r/min, are stirred
Salt acid for adjusting pH that mass fraction is 30% is then added dropwise into No. 1 beaker to 2.4, then to No. 1 burning with rubber head dropper by 60min
The liquor potassic permanganate that 0.08 times of mass fraction of cornstarch quality is 10% is added in cup, under the conditions of revolving speed is 500r/min,
It is stirred 60min, the sodium hydroxide that 0.2 times of mass fraction of cornstarch quality is 20% is molten then to being added in No. 1 beaker
Liquid is stirred 60min under the conditions of revolving speed is 500r/min to get pretreated starch liquid；Bamboo fibre is placed in pulverizer
It crushes, crosses the sieve of 120 mesh, bamboo fibre powder is obtained, according to parts by weight, by 30 parts of bamboo fibre powder, 5 parts of biogas slurries, 2 parts of glycerol, 2 parts of matter
The glucose solution that score is 0.5% is measured, 40 parts of water are placed in fermentation cauldron, are 200r/min in revolving speed, temperature is 35 DEG C of conditions
Under, mixed fermentation 5 days, fermentation mixed liquor is obtained, then fermentation mixed liquor is filtered, obtain filter cake, then by filter cake liquid nitrogen frozen, obtain cold
Freeze material, then freezing pellet is ground, the sieve of 240 mesh is crossed, obtains ball milling material, then ball milling material is placed in vacuum freezing drying oven and is done
It is dry to get modified additive；Ca-montmorillonite and water 1:20 in mass ratio are placed in No. 2 beakers, and No. 2 beakers are placed in water
It is 60 DEG C in temperature in bath, under the conditions of revolving speed is 600r/min, heating stirring mixes 50min, is then added into No. 2 beakers
The sodium carbonate that 0.3 times of ca-montmorillonite quality is 55 DEG C in temperature, and under the conditions of revolving speed is 600r/min, constant temperature is stirred to react 3h,
Then to the octadecyltrimethylammonium chloride that 0.5 times of ca-montmorillonite quality is added in No. 2 beakers, it is 85 DEG C in temperature, turns
Under the conditions of speed is 600r/min, after constant temperature is stirred to react 3h, mixed liquor is obtained, then mixed liquor is placed in baking oven, be in temperature
It is dry to constant weight under the conditions of 110 DEG C, it obtains modified montmorillonite used；Chitosan and water 1:100 in mass ratio are placed in No. 3 beakers, used
Glass bar stirs 30min, and after standing swelling 5h, heating stirring mixes 60min, obtains chitosan liquid；According to parts by weight, 80 parts it is pre-
Starch fluid is handled, 30 parts of modified additives, 8 parts of butyl acrylates, 8 parts of vinylacetates, 8 parts of acrylic acid, 20 parts are modified illiteracy and take off
Stone, 30 parts of chitosan liquid, 6 parts of crosslinking agents and 10 parts of rare earths are placed in batch mixer, and under the conditions of revolving speed is 800r/min, stirring is mixed
60min is closed to get water-resistant type starch base trademark adhesive.The crosslinking agent is glutaraldehyde.The rare earth is gadolinium nitrate.
Example 2
Cornstarch and water 1:20 in mass ratio are placed in No. 1 beaker, under the conditions of revolving speed is 500r/min, are stirred
Salt acid for adjusting pH that mass fraction is 30% is then added dropwise into No. 1 beaker to 2.4, then to No. 1 burning with rubber head dropper by 60min
The liquor potassic permanganate that 0.08 times of mass fraction of cornstarch quality is 10% is added in cup, under the conditions of revolving speed is 500r/min,
It is stirred 60min, the sodium hydroxide that 0.2 times of mass fraction of cornstarch quality is 20% is molten then to being added in No. 1 beaker
Liquid is stirred 60min under the conditions of revolving speed is 500r/min to get pretreated starch liquid；Ca-montmorillonite and water are pressed into matter
Amount is placed in No. 2 beakers than 1:20, and No. 2 beakers are placed in water-bath, is 60 DEG C in temperature, revolving speed is 600r/min condition
Under, heating stirring mixes 50min, and 0.3 times of ca-montmorillonite quality of sodium carbonate is then added into No. 2 beakers, is in temperature
55 DEG C, under the conditions of revolving speed is 600r/min, constant temperature is stirred to react 3h, then to addition ca-montmorillonite quality 0.5 in No. 2 beakers
Times octadecyltrimethylammonium chloride, in temperature be 85 DEG C, revolving speed be 600r/min under the conditions of, after constant temperature is stirred to react 3h,
Mixed liquor is obtained, then mixed liquor is placed in baking oven, it is dry to constant weight under the conditions of temperature is 110 DEG C, it obtains modified montmorillonite used；
Chitosan and water 1:100 in mass ratio are placed in No. 3 beakers, stir 30min with glass bar, after standing swelling 5h, heating is stirred
Mixing 60min is mixed, chitosan liquid is obtained；According to parts by weight, 80 parts of pretreated starch liquid, 8 parts of butyl acrylates, 8 parts of acetic acid second
Enester, 8 parts of acrylic acid, 20 parts are modified montmorillonite used, 30 parts of chitosan liquid, and 6 parts of crosslinking agents and 10 parts of rare earths are placed in batch mixer, in
Under the conditions of revolving speed is 800r/min, 60min is stirred to get water-resistant type starch base trademark adhesive.The crosslinking agent is glutaraldehyde.
The rare earth is gadolinium nitrate.
Example 3
Cornstarch and water 1:20 in mass ratio are placed in No. 1 beaker, under the conditions of revolving speed is 500r/min, are stirred
Salt acid for adjusting pH that mass fraction is 30% is then added dropwise into No. 1 beaker to 2.4, then to No. 1 burning with rubber head dropper by 60min
The liquor potassic permanganate that 0.08 times of mass fraction of cornstarch quality is 10% is added in cup, under the conditions of revolving speed is 500r/min,
It is stirred 60min, the sodium hydroxide that 0.2 times of mass fraction of cornstarch quality is 20% is molten then to being added in No. 1 beaker
Liquid is stirred 60min under the conditions of revolving speed is 500r/min to get pretreated starch liquid；Bamboo fibre is placed in pulverizer
It crushes, crosses the sieve of 120 mesh, bamboo fibre powder is obtained, according to parts by weight, by 30 parts of bamboo fibre powder, 5 parts of biogas slurries, 2 parts of glycerol, 2 parts of matter
The glucose solution that score is 0.5% is measured, 40 parts of water are placed in fermentation cauldron, are 200r/min in revolving speed, temperature is 35 DEG C of conditions
Under, mixed fermentation 5 days, fermentation mixed liquor is obtained, then fermentation mixed liquor is filtered, obtain filter cake, then by filter cake liquid nitrogen frozen, obtain cold
Freeze material, then freezing pellet is ground, the sieve of 240 mesh is crossed, obtains ball milling material, then ball milling material is placed in vacuum freezing drying oven and is done
It is dry to get modified additive；Chitosan and water 1:100 in mass ratio are placed in No. 3 beakers, stir 30min with glass bar, it is quiet
After setting swelling 5h, heating stirring mixes 60min, obtains chitosan liquid；According to parts by weight, 80 parts of pretreated starch liquid, 30 parts change
Property additive, 8 parts of butyl acrylates, 8 parts of vinylacetates, 8 parts of acrylic acid, 20 parts of ca-montmorillonites, 30 parts of chitosan liquid, 6
Part crosslinking agent and 10 parts of rare earths are placed in batch mixer, under the conditions of revolving speed is 800r/min, are stirred 60min to get water-fast
Type starch base trademark adhesive.The crosslinking agent is glutaraldehyde.The rare earth is gadolinium nitrate.
Example 4
Cornstarch and water 1:20 in mass ratio are placed in No. 1 beaker, under the conditions of revolving speed is 500r/min, are stirred
Salt acid for adjusting pH that mass fraction is 30% is then added dropwise into No. 1 beaker to 2.4, then to No. 1 burning with rubber head dropper by 60min
The liquor potassic permanganate that 0.08 times of mass fraction of cornstarch quality is 10% is added in cup, under the conditions of revolving speed is 500r/min,
It is stirred 60min, the sodium hydroxide that 0.2 times of mass fraction of cornstarch quality is 20% is molten then to being added in No. 1 beaker
Liquid is stirred 60min under the conditions of revolving speed is 500r/min to get pretreated starch liquid；Bamboo fibre is placed in pulverizer
It crushes, crosses the sieve of 120 mesh, bamboo fibre powder is obtained, according to parts by weight, by 30 parts of bamboo fibre powder, 5 parts of biogas slurries, 2 parts of glycerol, 2 parts of matter
The glucose solution that score is 0.5% is measured, 40 parts of water are placed in fermentation cauldron, are 200r/min in revolving speed, temperature is 35 DEG C of conditions
Under, mixed fermentation 5 days, fermentation mixed liquor is obtained, then fermentation mixed liquor is filtered, obtain filter cake, then by filter cake liquid nitrogen frozen, obtain cold
Freeze material, then freezing pellet is ground, the sieve of 240 mesh is crossed, obtains ball milling material, then ball milling material is placed in vacuum freezing drying oven and is done
It is dry to get modified additive；Ca-montmorillonite and water 1:20 in mass ratio are placed in No. 2 beakers, and No. 2 beakers are placed in water
It is 60 DEG C in temperature in bath, under the conditions of revolving speed is 600r/min, heating stirring mixes 50min, is then added into No. 2 beakers
The sodium carbonate that 0.3 times of ca-montmorillonite quality is 55 DEG C in temperature, and under the conditions of revolving speed is 600r/min, constant temperature is stirred to react 3h,
Then to the octadecyltrimethylammonium chloride that 0.5 times of ca-montmorillonite quality is added in No. 2 beakers, it is 85 DEG C in temperature, turns
Under the conditions of speed is 600r/min, after constant temperature is stirred to react 3h, mixed liquor is obtained, then mixed liquor is placed in baking oven, be in temperature
It is dry to constant weight under the conditions of 110 DEG C, it obtains modified montmorillonite used；Chitosan and water 1:100 in mass ratio are placed in No. 3 beakers, used
Glass bar stirs 30min, and after standing swelling 5h, heating stirring mixes 60min, obtains chitosan liquid；According to parts by weight, 80 parts it is pre-
Starch fluid is handled, 30 parts of modified additives, 8 parts of butyl acrylates, 8 parts of vinylacetates, 8 parts of acrylic acid, 20 parts are modified illiteracy and take off
Stone, 30 parts of chitosan liquid, 6 parts of crosslinking agents are placed in batch mixer, under the conditions of revolving speed is 800r/min, are stirred 60min, i.e.,
Obtain water-resistant type starch base trademark adhesive.The crosslinking agent is glutaraldehyde.
Comparative example: the starch trademark adhesive of Changzhou Biotechnology Co., Ltd production.
1 to 4 gained trademark adhesive of example and comparative example product are subjected to performance detection, the specific detection method is as follows:
Adhesion strength measurement: photo paper is cut into 2.5cm × 5cm strip, a certain amount of trademark adhesive is then coated on strip phase
Piece paper one side, painting cloth length is 0.5cm, is bonded on one side with 2.5cm × 7.5cm sheet glass (glass slide), bond length is fixed as
0.5cm is measured after samples dried using electronic universal tester.
Water-resistance measurement: glue is evenly coated on label, is pasted on vial clean in advance and is flattened, will be labelled
Vial place for 24 hours in environment of the relative humidity lower than 65% at room temperature after, vertically put people's temperature lower than in 20 DEG C of water (with
Increase the discrimination that label falls off), every 2h rotary glass bottle is primary, sees that whether there is or not alices and obscission.
Specific testing result is as shown in table 1:
Table 1: performance detection table
| Detection content | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example |
| Adhesion strength/N | 196 | 156 | 148 | 150 | 110 |
| Water-resistance/h | 154 | 124 | 132 | 128 | 82 |
By 1 testing result of table it is found that present invention gained water-resistant type starch base trademark adhesive has excellent water resistance and mechanical property
Energy.
Claims (7)
1. a kind of water-resistant type starch base trademark adhesive, it is characterised in that: be made of the raw material of following parts by weight:
60~80 parts of pretreated starch liquid
Modified 20~30 parts of additive
5~8 parts of butyl acrylate
5~8 parts of vinylacetate
5~8 parts of acrylic acid
Modified montmorillonite used 10~20 parts
20~30 parts of chitosan liquid
5~6 parts of crosslinking agent
8~10 parts of rare earth
The preparation process of the water-resistant type starch base trademark adhesive are as follows: weigh each raw material by raw material composition and change pretreated starch liquid
Property additive, butyl acrylate, vinylacetate, acrylic acid is modified montmorillonite used, chitosan liquid, and crosslinking agent and rare earth stirring are mixed
It closes to get water-resistant type starch base trademark adhesive.
2. a kind of water-resistant type starch base trademark adhesive according to claim 1, it is characterised in that: the system of the pretreated starch liquid
Standby process are as follows: cornstarch and water 1:10~1:20 in mass ratio are stirred, then dropwise addition salt acid for adjusting pH to 2.1~
2.4, it is subsequently added into 0.05~0.08 times of cornstarch quality of liquor potassic permanganate, is stirred, cornstarch is then added
The sodium hydroxide solution that 0.1~0.2 times of quality is mixed to get pretreated starch liquid.
3. a kind of water-resistant type starch base trademark adhesive according to claim 1, it is characterised in that: the preparation of the modified additive
Process are as follows: bamboo fibre is crushed, the sieve of 120 mesh is crossed, obtains bamboo fibre powder, according to parts by weight, and by 20~30 parts of bamboo fibre powder, 3
~5 parts of biogas slurries, 1~2 part of glycerol, 1~2 part of glucose solution, 3~40 parts of water mixed fermentations, filtering, liquid nitrogen frozen, ball milling, mistake
The sieve of 240 mesh, it is dry to get modified additive.
4. a kind of water-resistant type starch base trademark adhesive according to claim 1, it is characterised in that: the modified montmorillonite used preparation
Process are as follows: ca-montmorillonite and water 1:10~1:20 in mass ratio are stirred, be subsequently added into ca-montmorillonite quality 0.2~
0.3 times of sodium carbonate, constant temperature are stirred to react, and 0.4~0.5 times of ca-montmorillonite quality of octadecyl trimethyl chlorine is then added
Change ammonium, water bath with thermostatic control processing is dry, obtains modified montmorillonite used.
5. a kind of water-resistant type starch base trademark adhesive according to claim 1, it is characterised in that: the preparation of the chitosan liquid
Journey are as follows: mix chitosan with water 1:50~1:100 in mass ratio, after standing swelling, heating stirring dissolves to get chitosan
Liquid.
6. a kind of water-resistant type starch base trademark adhesive according to claim 1, it is characterised in that: the crosslinking agent be glutaraldehyde or
Any one in terephthalaldehyde.
7. a kind of water-resistant type starch base trademark adhesive according to claim 1, it is characterised in that: the rare earth is gadolinium nitrate, nitre
Any one in sour samarium, cerous nitrate or yttrium nitrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810827610.7A CN109054662A (en) | 2018-07-25 | 2018-07-25 | A kind of water-resistant type starch base trademark adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810827610.7A CN109054662A (en) | 2018-07-25 | 2018-07-25 | A kind of water-resistant type starch base trademark adhesive |
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| Publication Number | Publication Date |
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| CN201810827610.7A Withdrawn CN109054662A (en) | 2018-07-25 | 2018-07-25 | A kind of water-resistant type starch base trademark adhesive |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868090A (en) * | 2019-02-20 | 2019-06-11 | 赵玲玲 | A kind of preparation method of antistripping paper laminated adhesive |
| CN110129002A (en) * | 2019-05-30 | 2019-08-16 | 刘勇 | A kind of preparation method of aluminum foil backing paper specific complex adhesive |
-
2018
- 2018-07-25 CN CN201810827610.7A patent/CN109054662A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868090A (en) * | 2019-02-20 | 2019-06-11 | 赵玲玲 | A kind of preparation method of antistripping paper laminated adhesive |
| CN110129002A (en) * | 2019-05-30 | 2019-08-16 | 刘勇 | A kind of preparation method of aluminum foil backing paper specific complex adhesive |
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