CN109355039A - A kind of long open hour timber work glue based on malt maltose modified polyvinyl acetate emulsion - Google Patents
A kind of long open hour timber work glue based on malt maltose modified polyvinyl acetate emulsion Download PDFInfo
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- CN109355039A CN109355039A CN201811038882.5A CN201811038882A CN109355039A CN 109355039 A CN109355039 A CN 109355039A CN 201811038882 A CN201811038882 A CN 201811038882A CN 109355039 A CN109355039 A CN 109355039A
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- open hour
- ammonium persulfate
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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
- C09J131/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Adhesives based on derivatives of such polymers
- C09J131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09J131/04—Homopolymers or copolymers of vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to field of adhesive technology, and in particular to one kind is based on the long open hour timber work glue of malt maltose modified polyvinyl acetate emulsion.The present invention is in the preparation protecting colloid first with polyvinyl alcohol and malt maltose, and vinylacetate is monomer, and ammonium persulfate is initiator, prepares polyvinyl acetate emulsion by seeded emulsion polymerization technique, edible seaweed powder is then added in copolymer emulsion.Polyvinyl acetate timber work glue of the invention is using water as decentralized medium, easy to use, no pollution to the environment, compared with traditional polyvinyl acetate carpenter's glue of same solid content, with the distinguishing feature that the open hour are long.
Description
Technical field
The present invention relates to property timber work glue technologies of preparing, and in particular to one kind has long open hour poly-vinegar acid
The preparation of vinyl acetate woodworking adhesive stick.
Background technique
China is a woodwork production and consumption big country, to drive flourishing for Wood Adhesive.Aqua type
Polyvinyl acetate (PVAc) adhesive is current purposes most one of wide, the maximum environment-friendly adhesive kind of dosage.It is to be with water
Decentralized medium carries out emulsion polymerization and obtains, and is a kind of aqueous, environmental protective glue.Due to, solidification speed high with good film-forming property, adhesive strength
The features such as fast, resistance to diluted acid is diluted alkaline good, easy to use, cheap, without organic solvent is spent, timber, family are widely used in
The industries such as tool, finishing, printing, weaving, leather, papermaking are a kind of very environmentally friendly to use adhesive.
With the development of national economy, the developing of application field, dosage will increase substantially.But this single group
There are many disadvantages for the polyvinyl acetate emulsion divided, and if water resistance, heat resistance is poor, its glue-joint strength can be very under wet heat condition
Big degree decline；The creep-resistant property that it forms a film is poor, and under long-time dead weight, glue-line can generate sliding, while it
Moisture-proof, cold resistance and mechanical resistant stability are also poor.So development should be expanded to the modification of polyvinyl acetate emulsion.
As vinyl acetate emulsion in woodwork bond processing production process, due to different construction requirement, work
Artificial raising working efficiency, generally can be after coating glue to muti-piece woodwork, then puts together and carry out multilayer pressurization.But it is drying in the air
During setting, traditional adhesive is too fast since moisture content volatilizees, i.e. the open hour of adhesive fall short of, and worker is caused to apply much
When pressurizeing after laminate, glue has dried that ideal adhesive strength is not achieved.Therefore, to polyvinyl acetate emulsion gluing
The open hour of agent have been designed very important realistic meaning.
Summary of the invention
Present invention aims at not grown for traditional polyvinyl acetate emulsion adhesive open hour, provide based on wheat
The long open hour timber work glue of bud maltose modified polyvinyl acetate emulsion.
The present invention adopts the following technical scheme: when a kind of length based on malt maltose modified polyvinyl acetate emulsion opens
Between timber work glue, be prepared by following steps:
(1) 0.1 parts by weight ammonium persulfate is dissolved in 5 parts by weight water, the ammonium persulfate for obtaining polymerization reaction causes
Agent solution；
(2) vinylacetate of 25~28 parts by weight, 2 weight parts of methacrylic acid are mixed evenly, are made 27
~30 parts by weight mix monomers；
(3) 53~50 parts by weight water, 0.1 parts by weight defoaming agent F681,0.1 parts by weight buffer carbon are added in a kettle
Sour hydrogen sodium, 0.2 emulsifier disperse that 3~2 weight account polyethylene alcohol are added under stirring condition, 1~2 parts by weight malt maltose, stirring
Dispersion is warming up to 90 DEG C after ten minutes, keeps the temperature 60 minutes, is then cooled to 60 DEG C, be added 10 parts by weight vinylacetates and
1.5 parts by weight ammonium persulfate initiator solutions are dispersed with stirring 10 minutes；
(4) 78 DEG C are warming up to, matches 27~30 parts by weight to constant flow pump a dropping step (2) after no reflux and mixes within heat preservation 20 minutes
Monomer is closed, control drips off in 4 hours；3.6 parts by weight ammonium persulfate solutions are added dropwise in constant flow pump simultaneously, and control is dripped in 4 hours
It is complete；After monomer and ammonium persulfate solution drip off, heat preservation was warming up to 90 DEG C after 15 minutes, kept the temperature 60 minutes again；It is cooled to later
45 DEG C hereinafter, be added the increasing of the preservative, 0.1 parts by weight wetting agent, 0.5 parts by weight of 0.3 parts by weight edible seaweed powder, 0.1 parts by weight
Agent is moulded, stirring discharges after 30 minutes, obtains finished emulsion.
Further, the emulsifier is AEO-9.
Further, the plasticizer TXIB.
Further, the preservative is ROHM AND HAAS 342.
Further, the wetting agent is OT-75.
The beneficial effects of the present invention are: malt maltose is one kind of starch sugar, and main component is α -1, and 6 glycosidic bonds combine
Isomaltose (IG2), panose (P), more than Isomaltotriose (IG3) and tetrose (containing tetrose) (Gn) oligosaccharide.
Edible seaweed powder is a kind of safe and non-toxic, tasteless organic compound, and primary raw material comes from cellulose ether, and process is multiple
Chemical reaction is aided with scientific formula purification and refines synthesis.Edible seaweed powder has superior water-retaining property and tackifying, enhances strong adhesion
The density of degree and degree of structuration.
Patent of invention by using in hydroxyl a large amount of in malt maltose molecule and polymer chain architecture hydroxyl, carboxyl,
Amino plays synergistic effect with ehter bond, the hydroxyl of edible seaweed powder cyclic structure and forms hydrogen bond, forms a large amount of physical crosslinking point, makes
A part of hydrophobic grouping and hydrophilic residue, hydrophilic residue and hydrone knot are introduced in the water soluble polymer of cross-linked network
It closes, hydrone is connected to netted inside, and the cross-linked polymer of hydrophobic residue water-swellable.Chemically analyzed in structure,
Having adhesive after modification by copolymerization is the cross-linked type macromolecule in molecule containing hydrophilic radical and hydrophobic group.In the net of crosslinking
In lattice, many hydrophobic groups are certainly existed outwardly, the structure of hydrophilic radical inwardly, under this structure, hydrophily base
Group and hydrone are combined in a manner of hydrogen bond etc., and the barrier that hydrophobic group is formed outside can effectively be spaced different
In-laws network of rivers lattice play the role of accommodating hydrone container, to reach with water retention, extend open hour purpose.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail.
One total amount of embodiment=1000kg
(1) 1 kilogram of ammonium persulfate is dissolved in 50 kg of water, obtains the ammonium persulfate initiator of 51 kilograms of polymerization reactions
Solution；
(2) 250 kilograms of vinylacetates, 20 kilograms of methacrylic acids are mixed evenly, it is single that 270 kilograms of mixing is made
Body；
(3) 525 kg of water, 1 kilogram of defoaming agent F681,1 kilogram of buffer sodium bicarbonate, 2 kilograms are added in a kettle
Emulsifier AEO-9 disperses under stirring condition that 30 kilograms of rivers dimension 1788,10 kilograms of malt maltoses of polyvinyl alcohol are added, is dispersed with stirring
It is warming up to 90 DEG C after ten minutes, keeps the temperature 60 minutes, is then cooled to 60 DEG C, 100 kilograms of vinylacetates and 15 kilograms of steps are added
Suddenly the ammonium persulfate initiator solution that (1) is prepared, is dispersed with stirring 10 minutes；
(4) 78 DEG C are warming up to, heat preservation 20 minutes to constant flow pump a dropping step (2) after no reflux matches 270 kilograms of mixing singly
Body, control drip off in 4 hours；The ammonium persulfate solution that 36 kilograms of steps (1) are prepared is added dropwise in constant flow pump simultaneously, controls small 4
When interior drip off；After monomer and ammonium persulfate solution drip off, heat preservation was warming up to 90 DEG C after 15 minutes, kept the temperature 60 minutes again；Later
45 DEG C are cooled to hereinafter, 3 kilograms of edible seaweed powders, 1 kilogram of 342 preservative of ROHM AND HAAS, 1 kilogram of wetting agent OT-75,5 kilograms are added
Plasticizer TXIB, stirring discharge after 30 minutes, obtain finished emulsion.
Two total amounts of embodiment=1000kg
(1) 1 kilogram of ammonium persulfate is dissolved in 50 kg of water, obtains the ammonium persulfate initiator of 51 kilograms of polymerization reactions
Solution；
(2) 280 kilograms of vinylacetates, 20 kilograms of methacrylic acids are mixed evenly, 2300 kilograms of mixing is made
Monomer；
(3) 495 kg of water, 1 kilogram of defoaming agent F681,1 kilogram of buffer sodium bicarbonate, 2 kilograms are added in a kettle
Emulsifier AEO-9 disperses under stirring condition that 25 kilograms of rivers dimension 1788,15 kilograms of malt maltoses of polyvinyl alcohol are added, is dispersed with stirring
It is warming up to 90 DEG C after ten minutes, keeps the temperature 60 minutes, is then cooled to 60 DEG C, 100 kilograms of vinylacetates and 15 kilograms of steps are added
Suddenly the ammonium persulfate initiator solution that (1) is prepared, is dispersed with stirring 10 minutes；
(4) 78 DEG C are warming up to, heat preservation 20 minutes to constant flow pump a dropping step (2) after no reflux matches 270 kilograms of mixing singly
Body, control drip off in 4 hours；The ammonium persulfate solution that 36 kilograms of steps (1) are prepared is added dropwise in constant flow pump simultaneously, controls small 4
When interior drip off；After monomer and ammonium persulfate solution drip off, heat preservation was warming up to 90 DEG C after 15 minutes, kept the temperature 60 minutes again；Later
45 DEG C are cooled to hereinafter, 3 kilograms of edible seaweed powders, 1 kilogram of 342 preservative of ROHM AND HAAS, 1 kilogram of wetting agent OT-75,5 kilograms are added
Plasticizer TXIB, stirring discharge after 30 minutes, obtain finished emulsion.
Three total amounts of embodiment=1000kg
(1) 1 kilogram of ammonium persulfate is dissolved in 50 kg of water, obtains the ammonium persulfate initiator of 51 kilograms of polymerization reactions
Solution；
(2) 280 kilograms of vinylacetates, 20 kilograms of methacrylic acids are mixed evenly, 2300 kilograms of mixing is made
Monomer；
(3) 495 kg of water, 1 kilogram of defoaming agent F681,1 kilogram of buffer sodium bicarbonate, 2 kilograms are added in a kettle
Emulsifier AEO-9 disperses under stirring condition that 20 kilograms of rivers dimension 1788,20 kilograms of malt maltoses of polyvinyl alcohol are added, is dispersed with stirring
It is warming up to 90 DEG C after ten minutes, keeps the temperature 60 minutes, is then cooled to 60 DEG C, 100 kilograms of vinylacetates and 15 kilograms of steps are added
Suddenly the ammonium persulfate initiator solution that (1) is prepared, is dispersed with stirring 10 minutes；
(4) 78 DEG C are warming up to, heat preservation 20 minutes to constant flow pump a dropping step (2) after no reflux matches 270 kilograms of mixing singly
Body, control drip off in 4 hours；The ammonium persulfate solution that 36 kilograms of steps (1) are prepared is added dropwise in constant flow pump simultaneously, controls small 4
When interior drip off；After monomer and ammonium persulfate solution drip off, heat preservation was warming up to 90 DEG C after 15 minutes, kept the temperature 60 minutes again；Later
45 DEG C are cooled to hereinafter, 3 kilograms of edible seaweed powders, 1 kilogram of 342 preservative of ROHM AND HAAS, 1 kilogram of wetting agent OT-75,5 kilograms are added
Plasticizer TXIB, stirring discharge after 30 minutes, obtain finished emulsion.
In order to which the polyvinyl acetate carpenter's glue open hour obtained to three above embodiment compare evaluation, carry out
Following comparison supplement experiment: by same recipe described in embodiment one, (wherein in 1788 generations, were tieed up in 10 kilograms of malt maltoses equal amount river
Replace, correspond to comparative sample 1) prepare it is corresponding identical admittedly containing product.
Open hour compare method (under standard conditions) as described below:
(1) smooth medium-density plate is selected, detected glue is uniformly coated in density board with the spreader of 100g,
Start timing.
(2) open hour are just detected: after 10 minutes, i.e., a rayon balls are gently put in film surface, with mouth away from cotton
Ball 15cm, in the horizontal direction featheriness cotton balls, as can blowing away, glue surface is not surface drying there are staple；Otherwise cannot blow away or
Staple is stayed, every 1 minute again with cotton pellet method measurement is blown, until measuring subject to open hour T table.
(3) the essence detection open hour: after measuring the open hour, when (T table -1) minute again with cotton pellet method measurement opening is blown when
Between (if assert surface drying, need to be verified repeatedly with cotton balls 2 times)；And accurate measurement open hour again, later twice accurate measurement when be averaged
Time is expressed as the open hour of the glue.
Embodiment 1 is to embodiment 3 and 1 product physics of comparison example and performance indicator, according to HJ/T220-2005, GB/T
18583 2008 and HG/T 2727-2010 standard detection, testing result are as shown in table 1.
Table 1
Hydroxyl in hydroxyl a large amount of in malt maltose molecule and polymer chain architecture is passed through by the present invention it can be seen from table
Base, carboxyl, amino play synergistic effect with ehter bond, the hydroxyl of edible seaweed powder cyclic structure and form hydrogen bond, form a large amount of physics and hand over
Join point, makes to introduce a part of hydrophobic grouping and hydrophilic residue, hydrophilic residue and water in the water soluble polymer of cross-linked network
Molecule combines, and hydrone is connected to netted inside, and the cross-linked polymer of hydrophobic residue water-swellable, plays receiving hydrone
The effect of container extends open hour purpose to reach with water retention.
Claims (5)
1. a kind of long open hour timber work glue based on malt maltose modified polyvinyl acetate emulsion, which is characterized in that
It is prepared by following steps:
(1) 0.1 parts by weight ammonium persulfate is dissolved in 5 parts by weight water, the ammonium persulfate initiator for obtaining polymerization reaction is molten
Liquid.
(2) vinylacetate of 25~28 parts by weight, 2 weight parts of methacrylic acid are mixed evenly, are made 27~30
Parts by weight mix monomer.
(3) 53~50 parts by weight water, 0.1 parts by weight defoaming agent F681,0.1 parts by weight buffer bicarbonate are added in a kettle
Sodium, 0.2 emulsifier disperse that 3~2 weight account polyethylene alcohol are added under stirring condition, and 1~2 parts by weight malt maltose is dispersed with stirring
It is warming up to 90 DEG C after ten minutes, keeps the temperature 60 minutes, is then cooled to 60 DEG C, 10 parts by weight vinylacetates and 1.5 weights are added
Number ammonium persulfate initiator solution is measured, is dispersed with stirring 10 minutes.
(4) 78 DEG C are warming up to, matches 27~30 parts by weight to constant flow pump a dropping step (2) after no reflux and mixes list within heat preservation 20 minutes
Body, control drip off in 4 hours；3.6 parts by weight ammonium persulfate solutions are added dropwise in constant flow pump simultaneously, and control drips off in 4 hours；It is single
After body and ammonium persulfate solution drip off, heat preservation was warming up to 90 DEG C after 15 minutes, kept the temperature 60 minutes again；Be cooled to later 45 DEG C with
Under, the plasticizer of 0.3 parts by weight edible seaweed powder, the preservative of 0.1 parts by weight, 0.1 parts by weight wetting agent, 0.5 parts by weight is added, stirs
It discharges after mixing 30 minutes, obtains finished emulsion.
2. long open hour timber work glue according to claim 1, which is characterized in that the emulsifier is AEO-9.
3. long open hour timber work glue according to claim 1, which is characterized in that the plasticizer TXIB.
4. long open hour timber work glue according to claim 1, which is characterized in that the preservative is ROHM AND HAAS
342。
5. long open hour timber work glue according to claim 1, which is characterized in that the wetting agent is OT-75.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811038882.5A CN109355039B (en) | 2018-09-06 | 2018-09-06 | Long-open-time woodworking adhesive based on maltose syrup modified polyvinyl acetate emulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811038882.5A CN109355039B (en) | 2018-09-06 | 2018-09-06 | Long-open-time woodworking adhesive based on maltose syrup modified polyvinyl acetate emulsion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109355039A true CN109355039A (en) | 2019-02-19 |
| CN109355039B CN109355039B (en) | 2021-01-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811038882.5A Active CN109355039B (en) | 2018-09-06 | 2018-09-06 | Long-open-time woodworking adhesive based on maltose syrup modified polyvinyl acetate emulsion |
Country Status (1)
| Country | Link |
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| CN (1) | CN109355039B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704889A (en) * | 2020-07-01 | 2020-09-25 | 顶立新材料科技有限公司 | Long-open-time animal protein glue and preparation method thereof |
| CN118460153A (en) * | 2024-04-30 | 2024-08-09 | 广州原野实业有限公司 | Polyvinyl acetate emulsion woodworking adhesive with long opening time and strong moisture resistance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013010932A1 (en) * | 2011-07-15 | 2013-01-24 | Akzo Nobel Coatings International B.V. | Adhesive system |
| CN104073192A (en) * | 2014-06-26 | 2014-10-01 | 林创举 | Glue for adhering sheets and paper dielectric materials |
| CN106065301A (en) * | 2016-06-07 | 2016-11-02 | 台州学院 | A kind of anti-gaping of joints hot pressing veneer overlay glue stick and preparation method |
| CN107353852A (en) * | 2017-06-21 | 2017-11-17 | 顶立新材料科技有限公司 | A kind of preparation method of the polyvinyl acetate woodworking adhesive stick of long open hour |
-
2018
- 2018-09-06 CN CN201811038882.5A patent/CN109355039B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013010932A1 (en) * | 2011-07-15 | 2013-01-24 | Akzo Nobel Coatings International B.V. | Adhesive system |
| CN104073192A (en) * | 2014-06-26 | 2014-10-01 | 林创举 | Glue for adhering sheets and paper dielectric materials |
| CN106065301A (en) * | 2016-06-07 | 2016-11-02 | 台州学院 | A kind of anti-gaping of joints hot pressing veneer overlay glue stick and preparation method |
| CN107353852A (en) * | 2017-06-21 | 2017-11-17 | 顶立新材料科技有限公司 | A kind of preparation method of the polyvinyl acetate woodworking adhesive stick of long open hour |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704889A (en) * | 2020-07-01 | 2020-09-25 | 顶立新材料科技有限公司 | Long-open-time animal protein glue and preparation method thereof |
| CN118460153A (en) * | 2024-04-30 | 2024-08-09 | 广州原野实业有限公司 | Polyvinyl acetate emulsion woodworking adhesive with long opening time and strong moisture resistance |
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| Publication number | Publication date |
|---|---|
| CN109355039B (en) | 2021-01-12 |
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