CN105860877A - Addition agent for starch adhesive and preparation method and application method of addition agent for starch adhesive - Google Patents
Addition agent for starch adhesive and preparation method and application method of addition agent for starch adhesive Download PDFInfo
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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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- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/18—Oxidised starch
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
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- 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
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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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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2303/04—Starch derivatives
- C08J2303/10—Oxidised starch
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/24—Homopolymers or copolymers of amides or imides
- C08J2433/26—Homopolymers or copolymers of acrylamide or methacrylamide
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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Abstract
The invention discloses an addition agent for a starch adhesive. The addition agent comprises a first component, a second component and a third component in a weight ratio of 10:(5-10):(2-2.5), wherein the first component comprises urea peroxide and perborate, the second component comprises polyacrylamide and urea resin, and the third component comprises bentonite, nano-silica, expanded perlite, lignocelluloses, cane sugar, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate. The invention further provides a preparation method and an application method of the addition agent for the starch adhesive. With the help of the addition agent, the adhesive property and water resistence of the starch adhesive can be improved, air-drying speed of the starch adhesive can be increased, and the starch adhesive can be stored stably at normal temperature for over one year without sedimentation and mildewing.
Description
Technical field
The present invention relates to starch adhesive technical field, particularly relate to additive and the preparation side thereof of a kind of starch adhesive
Method and using method.
Background technology
Starch adhesive is a kind of adhesive that China's packaging industry is commonly used in recent years, have intensity high, lightweight,
Corrosion-free, pollution-free, moisture resistance is good, cementability is strong, film is tough and tensile and produces that equipment is simple, easy to make and coating weight is little etc.
Advantage, is the excellent adhesive replacing and continuing to use sodium silicate for many years.It is widely used in various paper made package box, bag, pipe
Produce it can also be used to trade mark, the stickup of wallpaper and textile starching, shoe industry and bafta are bonding etc..But amylum adhesive
Itself there is also some shortcomings, such as from dry speed is slow, initial bonding strength is low, poor water resistance etc..To this end, many insiders expand
Linguistic term.Main Improving ways: one is by selecting more suitably oxidant, to simplify production technology and to optimize product
Performance；Two is that to add the macromolecular material such as polyvinyl alcohol modified to it, to improve its resistance to water, rate of drying, just to glue speed, storage
Deposit the performances such as time；Three is that the method forming compound starch adhesive by adding some viscosifier improves resistance to water, adhesive strength
And rate of drying；Four are formed into solid starch adhesive, poor with the viscosity stability overcoming liquid starchy binding agent, be difficult to for a long time
Deposit, transport the deficiencies such as inconvenience.
At present, the preparation of starch adhesive is usually after starch is dissolved in water and uses potassium permanganate oxidation, is subsequently adding Caustic soda
Obtain with Borax etc., but potassium permanganate the most easily generates the manganese dioxide of dark color, can affect the face of adhesive
Color, and environment can be affected, the healthy of people also can be caused damage by Caustic soda and Borax.Prior
It is that precipitation easily occurs in the starch adhesive made in this way, and inadequate, slow from dry speed to the cohesive force of cardboard
(from dry speed can make slowly the easy deliquescing of paper embryo, run limit, collapse stupefied), easy moisture absorption.Therefore, a kind of starch adhesive additive of design is needed badly
Replace Borax and Caustic soda, and improve the stability of adhesive, cohesive force, the most dry speed and resistance to water.
Summary of the invention
The goal of the invention of the present invention is: for the problem of above-mentioned existence, it is provided that the additive of a kind of starch adhesive and
Its preparation method and using method.It has abandoned the potassium permanganate affecting binding agent color, and with urea peroxide and perborate
Starch is aoxidized, and with polyacrylamide and Lauxite, starch is modified, be effectively improved the anti-gel of adhesive
Property, hygroscopicity, pliability and toughness, improve that binding agent cohesive force is poor, the shortcoming of easy moisture absorption, the bentonite of addition, nanometer
Silicon dioxide and expanded perlite improve the most dry speed of binding agent, the tributyl phosphate of addition and propyl p-hydroxybenzoate
By starch granules, solid particle dispersions, make binding agent not free settling, the lignocellulose of addition and sucrose can improve at the beginning of adhesive
The shortcoming that viscous force is little.The additive of the starch adhesive of the present invention can improve the stability of adhesive, cohesive force, from dry speed and
Resistance to water, can stably deposit more than 1 year at normal temperatures, not settle, do not go mouldy.
To achieve these goals, the technical solution used in the present invention is as follows:
The additive of a kind of starch adhesive, it is made up of the first component, the second component and the 3rd component；
Described first component is made up of urea peroxide and perborate, and wherein, the weight ratio of urea peroxide and perborate is 1:
0.5-1；
Described second component is made up of polyacrylamide and Lauxite, wherein, and polyacrylamide and the weight ratio of Lauxite
For 2-3:1；
Described 3rd component is by bentonite, nano silicon, expanded perlite, lignocellulose, sucrose, polyvinyl alcohol, phosphorus
Acid tributyl and propyl p-hydroxybenzoate composition, wherein, bentonite, nano silicon, expanded perlite, wood fibre
The weight ratio of element, sucrose, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate is 1:2:1:0.5-0.8:0.8-1:
0.7-1:0.1-0.3:0.01-0.1；
Wherein, described first component, described second component are 10:5-10:2-2.5 with the weight ratio of described 3rd component.
Further, the additive of the starch adhesive of the present invention, it is by the first component, the second component and the 3rd component group
Become；
Described first component is made up of urea peroxide and perborate, and wherein, the weight ratio of urea peroxide and perborate is 1:
0.75；
Described second component is made up of polyacrylamide and Lauxite, wherein, and polyacrylamide and the weight ratio of Lauxite
For 2.5:1；
Described 3rd component is by bentonite, nano silicon, expanded perlite, lignocellulose, sucrose, polyvinyl alcohol, phosphorus
Acid tributyl and propyl p-hydroxybenzoate composition, wherein, bentonite, nano silicon, expanded perlite, wood fibre
The weight ratio of element, sucrose, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate is 1:2:1:0.6:0.9:0.8:0.2:
0.05；
Wherein, described first component, described second component are 10:8:2.25 with the weight ratio of described 3rd component.
Further, described perborate is Dexol, potassium perborate or calcium perborate.
Further, described bentonite is made up of sodium bentonite and calcium-base bentonite, described bentonitic particle diameter≤100
μm；Particle diameter≤100 μm of described perlite powder.
Further, described nano silicon is nanometer silica line or hollow mesoporous silica nanospheres.
Present invention also offers the preparation method of the additive of starch adhesive described above, specifically comprise the following steps that
Take urea peroxide and the perborate of above-mentioned weight ratio, be ground respectively and sieve, be sized to particle diameter≤100 μm, and
Mix homogeneously, obtains described first component；
Take polyacrylamide and the Lauxite of above-mentioned weight ratio, be ground respectively and sieve, be sized to particle diameter≤100 μm,
And mix homogeneously, obtain described second component；
Take the sucrose of above-mentioned weight ratio, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate and put in reaction vessel, add
After water all dissolves to sucrose, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate, add bentonite according to the above ratio
Powder, nano grade silica particles, perlite powder and lignocellulose carry out ultrasonic disperse, then by 100V unidirectional current
The both positive and negative polarity in source is put in reaction vessel, and positive pole and negative pole spacing are 25cm, after energising 15-25min, and the position of exchange both positive and negative polarity
And continue the 15-20min that is energized, then stop energising, be heated to 50 DEG C to reaction vessel, and be incubated 30-40min, then
It is evaporated under reduced pressure to water is all steamed, after drying, i.e. obtains described 3rd component.
Further, the power of described ultrasonic disperse is 50-100W, and frequency is 20-30kHz, and ultrasonic time is 10-
20min。
Present invention also offers the using method of the additive of starch adhesive described above: by 30-100 weight portion
Starch joins in the water of 150-300 weight portion, after stirring, adds described first component of 15 weight portions, stirring reaction
0.5-1h；Described second component, stirring reaction 1-2h is added subsequently by above-mentioned weight ratio；Then add described by above-mentioned weight ratio
3rd component, after stirring, with ultraviolet irradiation or cobalt-60 radiation source irradiation, obtains described starch adhesive.
Further, in described stirring reaction, the speed of stirring is 100-400 rev/min；The irradiation of described ultraviolet irradiation
Intensity is 70-90W/cm2, wavelength is 180-260nm, and exposure time is 5-10h；The radiation agent of described cobalt-60 radiation source irradiation
Amount is 10-50kGy, and exposure time is 15-30min.
Further, described starch selects the following any one or more planting apoplexy due to endogenous wind: corn starch, rice starch,
Wheaten starch, barley starch, sorghum starch, potato starch, tapioca and sweet potato starch.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
(1) first component of the present invention is made up of urea peroxide and perborate,
Urea peroxide is white crystalline powder, nontoxic odorlessness, and theoretical active oxygen content reaches 16%, H2O2Content 35%.Peroxidating
Urea is decomposed into carbamide (CO (NH in water2)2), H2O2With elemental oxygen (O), H2O2Gradually discharged with elemental oxygen (O), oxidation
Reaction can be carried out at normal temperatures and pressures, and it is strong that the existence of elemental oxygen (O) makes urea peroxide have higher oxidisability than hydrogen peroxide,
Use urea peroxide is oxidant, and oxidizing condition is gentle, and oxidability is strong.Urea peroxide is oxidant, is again bleach, can
Make adhesive product finer and smoother more in vain.It addition, the decomposition by-products carbamide of urea peroxide can be as the filler of binding agent.Carbamide
Carbonyl in molecule can with in starch chain hydroxyl occur a certain degree of condensation, thus increase binding agent denseness and
Bonding force.Meanwhile, carbamide has certain hygroscopicity, can have concurrently and urge dry effect；Perborate the most slowly decomposites hydrogen peroxide,
Hydrogen peroxide is by the hydroxyl oxidize on starch molecular chain, and makes starch molecule degrade, and this reduces the viscosity of amidin,
Improve the oxidation jointly of the mobility of amidin, urea peroxide and perborate and can improve the heat of starch adhesive surely
Qualitative, enhance anti-settling ability.
(2) second component of the present invention is made up of polyacrylamide and Lauxite.The inside of starch molecule is by many rings
Layer and netted composition.On the one hand, in circular layer it is the straight chain molecule different by length or branched chain molecule is arranged parallel to each other by hydrogen bond
Crystallite bundle, radially；On the other hand, a part of strand in starch contacts crystallite bundle in unbodied mode
Come so that the branch of same straight chain molecule or branched chain molecule likely identifies oneself with in the crystallite bundle that each are different.Wherein play bone
Frame effect is huge branched chain molecule, and straight chain molecule then may some individually be included in starch, and another part is distributed
In branched chain molecule, constitute crystallite bundle with the molecular mixing of side chain.The circular layer of starch molecule, network structure cause it forming oxygen
It is easy to that gelatin phenomenon occurs after changing starch.And once form gel, then adhesive will skinning, gel, precipitation, lose viscosity
And lost efficacy.Polyacrylamide is selected to make following 3 points of advantage of modifying agent: one is the special chemical character because of amide groups
Give the anti-gel function that it is excellent.In polyacrylamide amine molecule, amide groups can be with the hydroxyl of starch molecule surface residual by hydrogen
Key effect and produce " bridge formation ", reach to stop Oxytarch skinning, gel and inharmonious purpose.Two is nontoxic, non-corrosiveness, ring
Border is friendly.Polyacrylamide is molecular weight wire high polymer between 300～25,000,000, and solid product outward appearance is white powder
Grain, soluble in water, good stability, easy to use；Three is that polyacrylamide has hygroscopicity, cohesive, retention, thickening property.This
Invention uses polyacrylamide to do modifying agent, is effectively improved the gel resistance of Oxytarch, hygroscopicity, pliability and toughness etc.
Performance.But polyacrylamide consumption too much can cause that starch adhesive is poor from dryness, resistance to water is low, so at this base after bonding
Increasing part Lauxite on plinth, remaining polyacrylamide can inspire the active hydroxyl first on Lauxite as initiator
Base can be combined with the residual hydroxyl in starch molecule, so, under the effect of polyacrylamide and Lauxite, and starch molecule shape
Having become network structure, this just greatly improves the cementitiousness of adhesive, and the minimizing of hydroxyl reduces the parent of starch molecule
Aqueous, this adhesive allowed for has stronger resistance to water, and is difficult to moisture absorption and softens.Polyacrylamide and Lauxite
Weight ratio is advisable with 2.5:1, make Starch formation appropriateness network structure and the most excessive.
(3) the 3rd component of the present invention by bentonite, nano silicon, expanded perlite, lignocellulose, sucrose,
Polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate composition, add bentonite, nano silicon, expanded perlite
Enter in starch adhesive to be effectively improved the most dry speed, particularly nano silicon and expanded perlite of starch adhesive
There is non-hygroscopic well, beneficially water evaporates；The present invention is simultaneously used as with sodium bentonite and calcium-base bentonite
Filler, finds that it can shorten drying time effectively, improves paperboard stiffness, and sodium form bentonite and calcium type bentonite are joined with 1:1
Than time effect best, it addition, sodium form bentonite and calcium type bentonite use the phenomenon that can be prevented effectively from layering, settle simultaneously；Wood
Matter cellulose has the effect of excellent bonding, thickening, suspension and protecting colloid, and lignocellulose also has sterilization and resists simultaneously
The effect of enzymolysis, is possible to prevent starch adhesive to go bad, settles, effectively extend the storage time of amylum adhesive；Sucrose
Addition can be effectively improved the original viscosity of starch adhesive, and tributyl phosphate can prevent or cut down the vacant lot in starch adhesive, tool
There is the effect of froth breaking；Propyl p-hydroxybenzoate has antiseptical effect, and it works with lignocellulose one and prevents amylan
Glutinous agent is mouldy during storing, rotten.Sucrose and polyvinyl alcohol are good surfactant, adsorbable are dispersed in swelling
Soil, nano silicon and expanded perlite surface, improve their dissolubility, make starch adhesive will not settle completely, can
Preserve with long-time.
(4) during preparation the 3rd component, bentonite powder, nano grade silica particles, expanded pearlite are being added
Behind rock dust end and lignocellulose, first carry out ultrasonic disperse, pressed powder and lignocellulose are completely dispersed, formed uniform
Glue, then twice exchange positive and negative electrode, utilize electric current to make sucrose and polyvinyl alcohol be dispersed in around solid particle, ultrasonic
During dispersion and exchange positive and negative electrode, each component form does not change；Utilize ultrasonic disperse and exchange positive and negative electrode
The method that current dissipation combines, makes each form to mix and is uniformly dispersed, and once the 3rd component joins in starch solution,
Be combined with solid particle rapidly, and generation effect.
(5) when the additive using starch adhesive prepares starch adhesive, after adding the 3rd component, ultraviolet is used
Irradiation or cobalt-60 irradiation, this is to promote that pressed powder moves, and is fully combined with sucrose and polyvinyl alcohol, improves dispersion
Effect；And through ultraviolet irradiation or cobalt-60 irradiation, it is possible to interrupt, modified starch strand, reduce the viscosity of binding agent, make
Amylum adhesive is more suitable for using.
(6) the starch adhesive additive of the present invention is nontoxic, odorlessness, does not results in environmental pollution, does not interferes with human body
Healthy.The starch adhesive that the present invention prepares after joining amidin has stronger cohesive force, fast from dry speed, moisture absorption
Property is weak, resistance to water is strong, and makes amylum adhesive form stable suspension, will not settle, extend the storage time；Common shallow lake
Powder adhesive is typically the most stably deposited about three months at normal temperatures, and the starch adhesive prepared through the additive of the present invention
Stably deposit more than 1 year, still keep good viscosity, mobility and stability, do not settle, do not go mouldy.
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive
Feature and/or step beyond, all can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary), unless specifically stated otherwise,
By other equivalences or there is the alternative features of similar purpose replaced.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalence or similar characteristics.
Embodiment 1
The additive of a kind of starch adhesive, it is made up of the first component, the second component and the 3rd component；
In parts by weight, described first component is made up of 10 parts of urea peroxides and 5 parts of Dexol, described second component by
10 parts of polyacrylamides and 5 parts of Lauxite compositions, described 3rd component is the bentonite of 80 μm, 4 parts of titanium dioxide by 2 parts of particle diameters
Silicon nanowires, 2 parts of particle diameters be the expanded perlite of 80 μm, 1 part of lignocellulose, 1.6 portions of sucrose, 1.4 parts of polyvinyl alcohol, 0.2
Part tributyl phosphate and 0.02 part of propyl p-hydroxybenzoate composition, wherein, bentonite is by 1.5 parts of sodium bentonites and 0.5 part
Calcium-base bentonite forms.
The preparation method of the additive of above-mentioned a kind of starch adhesive, specifically comprises the following steps that
Take urea peroxide and the perborate of above-mentioned parts by weight, be ground respectively and sieve, be sized to particle diameter≤100 μm,
And mix homogeneously, obtain described first component；
Take polyacrylamide and the Lauxite of above-mentioned parts by weight, be ground respectively and sieve, be sized to particle diameter≤100 μ
M, and mix homogeneously, obtain described second component；
Take the sucrose of above-mentioned parts by weight, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate and put in reaction vessel,
Add water to after sucrose, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate all dissolve, add swelling according to the above ratio
Soil powder, nano grade silica particles, perlite powder and lignocellulose carry out ultrasonic disperse, the power of ultrasonic disperse
For 50W, frequency is 30kHz, and ultrasonic time is 20min；Then the both positive and negative polarity of 100V DC source is put in reaction vessel, just
Pole and negative pole spacing are 25cm, after energising 15min, exchange the position of both positive and negative polarity and continue the 20min that is energized, then stopping energising,
It is heated to 50 DEG C to reaction vessel, and is incubated 30min, be then evaporated under reduced pressure to water is all steamed, after drying, i.e. obtain institute
State the 3rd component.
The using method of the additive of above-mentioned a kind of starch adhesive, specifically comprises the following steps that
Being joined by the corn starch of 30 parts in the water of 150 parts, after stirring, add 15 parts of described first components, stirring is anti-
Answer 0.5h；7.5 parts add described second component, stirring reaction 1-2h subsequently；Being subsequently adding 3 parts of described 3rd components, stirring is all
After even, i.e. obtain described starch adhesive with ultraviolet irradiation；Wherein in stirring reaction, the speed of stirring is 100 revs/min；Ultraviolet
The irradiation intensity of irradiation is 70W/cm2, wavelength is 180nm, and exposure time is 5h.
Embodiment 2
The additive of a kind of starch adhesive, it is made up of the first component, the second component and the 3rd component；
In parts by weight, described first component is made up of 10 parts of urea peroxides and 10 parts of Dexol, described second component
Be made up of 15 parts of polyacrylamides and 5 parts of Lauxites, described 3rd component by 2 parts of particle diameters be the bentonite of 50 μm, 4 parts hollow
Mesoporous silica nanospheres, 2 parts of particle diameters are the expanded perlite of 50 μm, 1.6 parts of lignocellulose, 2 parts of sucrose, 2 parts of poly-second
Enol, 0.6 part of tributyl phosphate and 0.2 part of propyl p-hydroxybenzoate composition, wherein, bentonite is by 0.5 part of sodium bentonite
With 1.5 parts of calcium-base bentonite compositions.
The preparation method of the additive of above-mentioned a kind of starch adhesive, specifically comprises the following steps that
Take urea peroxide and the perborate of above-mentioned parts by weight, be ground respectively and sieve, be sized to particle diameter≤100 μm,
And mix homogeneously, obtain described first component；
Take polyacrylamide and the Lauxite of above-mentioned parts by weight, be ground respectively and sieve, be sized to particle diameter≤100 μ
M, and mix homogeneously, obtain described second component；
Take the sucrose of above-mentioned parts by weight, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate and put in reaction vessel,
Add water to after sucrose, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate all dissolve, add swelling according to the above ratio
Soil powder, nano grade silica particles, perlite powder and lignocellulose carry out ultrasonic disperse, the power of ultrasonic disperse
For 50W, frequency is 30kHz, and ultrasonic time is 20min；Then the both positive and negative polarity of 100V DC source is put in reaction vessel, just
Pole and negative pole spacing are 25cm, after energising 15min, exchange the position of both positive and negative polarity and continue the 20min that is energized, then stopping energising,
It is heated to 50 DEG C to reaction vessel, and is incubated 30min, be then evaporated under reduced pressure to water is all steamed, after drying, i.e. obtain institute
State the 3rd component.
The using method of the additive of above-mentioned a kind of starch adhesive, specifically comprises the following steps that
The rice starchs of 30 parts and sweet potato starch are joined in the water of 150 parts, after stirring, add 15 parts described first group
Part, stirring reaction 0.5h；15 parts add described second component, stirring reaction 1-2h subsequently；It is subsequently adding 3.75 parts the described 3rd
Component, after stirring, i.e. obtains described starch adhesive with cobalt-60 radiation source irradiation；The wherein speed of stirring in stirring reaction
It it is 100 revs/min；The radiation dose of cobalt-60 radiation source irradiation is 10kGy, and exposure time is 30min.
Embodiment 3
The additive of a kind of starch adhesive, it is made up of the first component, the second component and the 3rd component；
In parts by weight, described first component is made up of 10 parts of urea peroxides and 7.5 parts of Dexol, described second component
Being made up of 12.5 parts of polyacrylamides and 5 parts of Lauxites, described 3rd component is the bentonite of 50 μm, 4 parts of skies by 2 parts of particle diameters
Heart mesoporous silica nanospheres, 2 parts of particle diameters be the expanded perlite of 50 μm, 1.2 parts of lignocellulose, 1.8 portions of sucrose, 1.6
Part polyvinyl alcohol, 0.4 part of tributyl phosphate and 0.1 part of propyl p-hydroxybenzoate composition, wherein, bentonite is swollen by 1 part of sodio
Profit soil and 1 part of calcium-base bentonite composition.
The preparation method of the additive of above-mentioned a kind of starch adhesive, specifically comprises the following steps that
Take urea peroxide and the perborate of above-mentioned parts by weight, be ground respectively and sieve, be sized to particle diameter≤100 μm,
And mix homogeneously, obtain described first component；
Take polyacrylamide and the Lauxite of above-mentioned parts by weight, be ground respectively and sieve, be sized to particle diameter≤100 μ
M, and mix homogeneously, obtain described second component；
Take the sucrose of above-mentioned parts by weight, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate and put in reaction vessel,
Add water to after sucrose, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate all dissolve, add swelling according to the above ratio
Soil powder, nano grade silica particles, perlite powder and lignocellulose carry out ultrasonic disperse, the power of ultrasonic disperse
For 100W, frequency is 20kHz, and ultrasonic time is 10min；Then the both positive and negative polarity of 100V DC source is put in reaction vessel,
Positive pole and negative pole spacing are 25cm, after energising 25min, exchange the position of both positive and negative polarity and continue the 15min that is energized, then stopping logical
Electricity, is heated to 50 DEG C to reaction vessel, and is incubated 40min, is then evaporated under reduced pressure to all being steamed by water, after drying and get final product
Described 3rd component.
The using method of the additive of above-mentioned a kind of starch adhesive, specifically comprises the following steps that
The sorghum starches of 30 parts and tapioca are joined in the water of 150 parts, after stirring, add 15 parts described first group
Part, stirring reaction 0.5h；15 parts add described second component, stirring reaction 1-2h subsequently；It is subsequently adding 3.75 parts the described 3rd
Component, after stirring, i.e. obtains described starch adhesive with ultraviolet irradiation；Wherein in stirring reaction, the speed of stirring is 100
Rev/min；The irradiation intensity of ultraviolet irradiation is 70W/cm2, wavelength is 180nm, and exposure time is 5h.
Embodiment 4
The additive of a kind of starch adhesive, it is made up of the first component, the second component and the 3rd component；
In parts by weight, described first component is made up of 10 parts of urea peroxides and 7.5 parts of Dexol, described second component
Being made up of 12.5 parts of polyacrylamides and 5 parts of Lauxites, described 3rd component is the bentonite of 50 μm, 4 parts of skies by 2 parts of particle diameters
Heart mesoporous silica nanospheres, 2 parts of particle diameters be the expanded perlite of 50 μm, 1.2 parts of lignocellulose, 1.8 portions of sucrose, 1.6
Part polyvinyl alcohol, 0.4 part of tributyl phosphate and 0.1 part of propyl p-hydroxybenzoate composition, wherein, bentonite is swollen by 1 part of sodio
Profit soil and 1 part of calcium-base bentonite composition.
The preparation method of the additive of above-mentioned a kind of starch adhesive, specifically comprises the following steps that
Take urea peroxide and the perborate of above-mentioned parts by weight, be ground respectively and sieve, be sized to particle diameter≤100 μm,
And mix homogeneously, obtain described first component；
Take polyacrylamide and the Lauxite of above-mentioned parts by weight, be ground respectively and sieve, be sized to particle diameter≤100 μ
M, and mix homogeneously, obtain described second component；
Take the sucrose of above-mentioned parts by weight, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate and put in reaction vessel,
Add water to after sucrose, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate all dissolve, add swelling according to the above ratio
Soil powder, nano grade silica particles, perlite powder and lignocellulose carry out ultrasonic disperse, the power of ultrasonic disperse
For 80W, frequency is 25kHz, and ultrasonic time is 15min；Then the both positive and negative polarity of 100V DC source is put in reaction vessel, just
Pole and negative pole spacing are 25cm, after energising 20min, exchange the position of both positive and negative polarity and continue the 15min that is energized, then stopping energising,
It is heated to 50 DEG C to reaction vessel, and is incubated 35min, be then evaporated under reduced pressure to water is all steamed, after drying, i.e. obtain institute
State the 3rd component.
The using method of the additive of above-mentioned a kind of starch adhesive, specifically comprises the following steps that
The wheaten starches of 100 parts and corn starch are joined in the water of 300 parts, after stirring, add 15 parts described first
Component, stirring reaction 0.5h；12.5 parts add described second component, stirring reaction 2h subsequently；It is subsequently adding 3.75 parts described
Three components, after stirring, i.e. obtain described starch adhesive with cobalt-60 radiation source irradiation；The wherein speed of stirring in stirring reaction
Degree is 300 revs/min；The radiation dose of cobalt-60 radiation source irradiation is 50kGy, and exposure time is 15min.
Comparative example 1
Compared with Example 4, second component is not added with polyacrylamide, and remaining each raw material weight ratio is identical with embodiment 4,
Technological parameter is the most identical.
Comparative example 2
Compared with Example 4, second component is not added with Lauxite, and remaining each raw material weight ratio is identical with embodiment 4, work
Skill parameter is the most identical.
Comparative example 3
Compared with Example 4, the bentonite of the 3rd component is only sodium bentonite, and remaining each raw material weight ratio is complete with embodiment 4
Exactly the same, technological parameter is the most identical.
Comparative example 4
Compared with Example 4, the bentonite of the 3rd component is only calcium-base bentonite, and remaining each raw material weight ratio is complete with embodiment 4
Exactly the same, technological parameter is the most identical.
Comparative example 5
Compared with Example 4, the weight ratio making each raw material is identical with example 4, but for the preparation of the 3rd component
Method is: after adding bentonite powder, nano grade silica particles, perlite powder and lignocellulose, be no longer pass through
The technique of ultrasonic disperse, but directly the both positive and negative polarity of 100V DC source is put in reaction vessel, positive pole and negative pole spacing are
25cm, after energising 20min, exchanges the position of both positive and negative polarity and continues the 15min that is energized, then stopping energising, heat to reaction vessel
It is warming up to 50 DEG C, and is incubated 35min, be then evaporated under reduced pressure to water is all steamed, the 3rd component described in drying.
The each starch adhesive preparing embodiment 1-4 and comparative example 1-5 is tested, and test result is as shown in table 1.
Wherein, the assay method of viscosity is with reference to People's Republic of China's standard GB/T 1723 dope viscosity algoscopy, uses at 25 DEG C
XND-1 type coating-4 viscosity meter is measured；Peel strength is surveyed with reference to People's Republic of China (PRC) standard GB/T 7122-1996
Fixed；Viscosity represents mobility and the stability of adhesive, and airdrying time represents the most dry speed of starch adhesive, peel strength generation
The cohesive force of table starch adhesive, the storage phase represents the time limit that starch adhesive occurs without sedimentation, do not goes mouldy.
Table 1
Finding out from upper table 1, each correlated performance of starch adhesive prepared in example 4 is most preferably, it may be determined that its proportioning raw materials
It is most preferably scheme with technological parameter；Comparative example 1 is owing to being not added with polyacrylamide, and its viscosity substantially increases, and under the storage phase
Fall, i.e. anti-settling ability is substantially less than embodiment 4；Owing to being not added with polyacrylamide in comparative example 2, its viscosity declines, from dry
Time also increases, and adhesive inner molecular structure changes simultaneously, and the phase that stores declines, i.e. anti-settling ability is substantially less than and implements
Example 4；Comparative example 3 and comparative example 4 are owing to the most individually with the addition of sodium form bentonite or calcium type bentonite, and its airdrying time prolongs relatively
Long, also it is easier to settle, the storage phase shortens；When comparative example 5 is for the preparation of the 3rd component, without ultrasonic disperse, amylan
The storage time of glutinous agent is decreased obviously, and illustrates ultrasonic disperse to contribute to pressed powder and lignocellulose and is completely dispersed, makes shallow lake
Powder adhesive delayed fallout, extends the storage time.
Starch adhesive its correlated performance of sampling and measuring, test result after storage different time to embodiment 4 preparation
As shown in table 2.
Table 2
Find out from upper table 2, along with storage the time increase, embodiment 4 preparation starch adhesive correlated performance the most under
Fall, when storing 14th month, viscosity and peel strength are reduced by up to, and adhesive starts to occur settling on a small quantity simultaneously；Illustrate to implement
The starch adhesive of example 4 preparation at least can stable storage 14 months.
The invention is not limited in aforesaid detailed description of the invention.The present invention expands to any disclose in this manual
New feature or any new combination, and the arbitrary new method that discloses or the step of process or any new combination.
Claims (10)
1. the additive of a starch adhesive, it is characterised in that it is made up of the first component, the second component and the 3rd component；
Described first component is made up of urea peroxide and perborate, and wherein, the weight ratio of urea peroxide and perborate is 1:
0.5-1；
Described second component is made up of polyacrylamide and Lauxite, wherein, and polyacrylamide and the weight ratio of Lauxite
For 2-3:1；
Described 3rd component is by bentonite, nano silicon, expanded perlite, lignocellulose, sucrose, polyvinyl alcohol, phosphorus
Acid tributyl and propyl p-hydroxybenzoate composition, wherein, bentonite, nano silicon, expanded perlite, wood fibre
The weight ratio of element, sucrose, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate is 1:2:1:0.5-0.8:0.8-1:
0.7-1:0.1-0.3:0.01-0.1；
Wherein, described first component, described second component are 10:5-10:2-2.5 with the weight ratio of described 3rd component.
The additive of starch adhesive the most according to claim 1, it is characterised in that it is by the first component, the second component
With the 3rd component composition；
Described first component is made up of urea peroxide and perborate, and wherein, the weight ratio of urea peroxide and perborate is 1:
0.75；
Described second component is made up of polyacrylamide and Lauxite, wherein, and polyacrylamide and the weight ratio of Lauxite
For 2.5:1；
Described 3rd component is by bentonite, nano silicon, expanded perlite, lignocellulose, sucrose, polyvinyl alcohol, phosphorus
Acid tributyl and propyl p-hydroxybenzoate composition, wherein, bentonite, nano silicon, expanded perlite, wood fibre
The weight ratio of element, sucrose, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate is 1:2:1:0.6:0.9:0.8:0.2:
0.05；
Wherein, described first component, described second component are 10:8:2.25 with the weight ratio of described 3rd component.
The additive of starch adhesive the most according to claim 1, it is characterised in that described perborate is perboric acid
Sodium, potassium perborate or calcium perborate.
The additive of starch adhesive the most according to claim 1, it is characterised in that described bentonite is by sodium bentonite
Form with calcium-base bentonite, described bentonitic particle diameter≤100 μm；Particle diameter≤100 μm of described perlite powder.
The additive of starch adhesive the most according to claim 1, it is characterised in that described nano silicon is dioxy
SiClx nano wire or hollow mesoporous silica nanospheres.
6., according to the preparation method of the additive of the starch adhesive described in claim 1-5 any claim, its feature exists
In, specifically comprise the following steps that
Take urea peroxide and the perborate of above-mentioned weight ratio, be ground and sieve, be sized to particle diameter≤100 μm, and mix
Uniformly, described first component is obtained；
Take polyacrylamide and the Lauxite of above-mentioned weight ratio, be ground and sieve, be sized to particle diameter≤100 μm, and mix
Close uniformly, obtain described second component；
Take the sucrose of above-mentioned weight ratio, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate and put in reaction vessel, add
After water all dissolves to sucrose, polyvinyl alcohol, tributyl phosphate and propyl p-hydroxybenzoate, add bentonite according to the above ratio
Powder, nano grade silica particles perlite powder and lignocellulose carry out ultrasonic disperse, then by 100V unidirectional current
The both positive and negative polarity in source is put in reaction vessel, and positive pole and negative pole spacing are 25cm, after energising 15-25min, and the position of exchange both positive and negative polarity
And continue the 15-20min that is energized, then stop energising, be heated to 50 DEG C to reaction vessel, and be incubated 30-40min, then
It is evaporated under reduced pressure to water is all steamed, after drying, i.e. obtains described 3rd component.
The preparation method of the additive of starch adhesive the most according to claim 6, it is characterised in that described ultrasonic disperse
Power 50-100W, frequency is 20-30kHz, and ultrasonic time is 10-20min.
8., according to the using method of the additive of the starch adhesive described in claim 1-5 any claim, its feature exists
In, the starch of 30-100 weight portion is joined in the water of 150-300 weight portion, after stirring, add the institute of 15 weight portions
State the first component, stirring reaction 0.5-1h；Described second component, stirring reaction 1-2h is added subsequently by above-mentioned weight ratio；Then
Add described 3rd component by above-mentioned weight ratio, after stirring, with ultraviolet irradiation or cobalt-60 radiation source irradiation, obtain institute
State starch adhesive.
The using method of the additive of starch adhesive the most according to claim 8, it is characterised in that described stirring is reacted
The speed of middle stirring is 100-400 rev/min；The irradiation intensity of described ultraviolet irradiation is 70-90W/cm2, wavelength is 180-
260nm, exposure time is 5-10h；The radiation dose of described cobalt-60 radiation source irradiation is 10-50kGy, and exposure time is 15-
30min。
The using method of the additive of starch adhesive the most according to claim 8, it is characterised in that described starch selects
Select any one or more of following kind of apoplexy due to endogenous wind: corn starch, rice starch, wheaten starch, barley starch, sorghum starch, horse
Bell sweet potato starch, tapioca and sweet potato starch.
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| CN111674099A (en) * | 2020-06-17 | 2020-09-18 | 广东天元实业集团股份有限公司 | Environment-friendly packaging bag and preparation method thereof |
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