CN107868631A - A kind of environment-friendly wood assembling glue and preparation method thereof - Google Patents
A kind of environment-friendly wood assembling glue and preparation method thereof Download PDFInfo
- Publication number
- CN107868631A CN107868631A CN201711180138.4A CN201711180138A CN107868631A CN 107868631 A CN107868631 A CN 107868631A CN 201711180138 A CN201711180138 A CN 201711180138A CN 107868631 A CN107868631 A CN 107868631A
- Authority
- CN
- China
- Prior art keywords
- environment
- glue
- agent
- friendly wood
- crosslinking agent
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- 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
-
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
Abstract
The invention discloses a kind of environment-friendly wood to assemble glue, including following raw material by weight percentage：Polyvinyl acetate emulsion 70~80%, PVA3~5%, deionized water 10~20%, auxiliary agent 0.5~2%, crosslinking agent A0.5~1%, crosslinking agent B 3~6%；The invention also discloses the preparation method of above-mentioned environment-friendly wood assembling glue.The solid wood assembling glue stability of the present invention is good, and curing rate is fast, easy for construction, and production efficiency is high, has higher compression shear strength and good resistance to thawing and water resistance after solidification concurrently.
Description
Technical field
The present invention relates to a kind of based Wood Adhesives, more particularly to a kind of environment-friendly wood assembling glue and preparation method thereof.
Background technology
In recent years, timber assembling is rapidly developed with splicing, by the integrated timber that fritter batten splices and major diameter build
Material belongs to solid wood material, can meet the growing solid wood decorative demand of people, solve again because the forest reserves are deficient and
Caused by heavy section it is rare the problem of.
To reach the integrated timber of assembling and splicing or performance close to major diameter frame body sectional material, it is desirable to adhesive used it is strong
Degree exceedes the intensity of timber in itself.Traditional aldehydes adhesive, such as Lauxite, phenolic resin and melamine resin
Deng, because adhesive strength height, simple production process, it is cheap largely used.With the continuous increasing of people's environmental consciousness
Strong and countries in the world are strict to aldehydes toxic compounds content in adhesive and other VOCs (VOC) content
Limitation, based Wood Adhesives start the environment-friendly type direction fast development towards Water-borne modification, low VOC emission.
The polyvinyl acetate emulsion used earliest, also known as white glue with vinyl, it is difficult to meet use demand in intensity and weather resisteant
And existing professional standard《Aqueous-based polymers-isocyanate wood adhesive》LY/T1601 regulation.Other natural glues, such as
Soy protein adhesives, starch adhesive etc., the problem of low glue-joint strength, poor water resistance be present.Ethene-the vinegar then occurred
Sour ethylene copolymerization emulsions splicing adhesive is then primarily adapted for use in the softwoods such as pine, China fir, to hardwood base materials such as toothed oak wood, Manchurian ash
Adhesive strength is not high, and especially wet strength can not meet to require.
To overcome this deficiency, existing research uses isocyanate-modified environment-friendly type aqueous polymer-based adhesive.In
State patent of invention CN102925081A discloses a kind of High-strength double-component splicing adhesive, including vinyl acetate class emulsion, polyethylene
Alcohol, function monomer, plasticizer, inorganic filler, dispersant, defoamer, bactericide, deionized water and the more benzene of curing agent polymethylene
Quito isocyanates.The two-component splicing adhesive has very high intensity and excellent water resistance, is especially suitable for the viscous of hard wood
Connect, still, reaction rate is slow at normal temperatures for single modified isocyanate curing agent, influences production efficiency, and elevated cure can carry
High reaction rate, but rate of side reactions is also accelerated simultaneously, larger to glue-line intensity effect, its hardener dose is big in addition, hands over
Connection degree is big, is to sacrifice freeze-thawing resistant stability as cost although improving adhesive strength.
The content of the invention
The problem of existing for prior art, it is an object of the invention to provide a kind of environment-friendly wood assembling glue and its preparation
Method.
To achieve these goals, the present invention uses following technical scheme：
A kind of environment-friendly wood assembles glue, including following raw material by weight percentage：
Polyvinyl acetate emulsion 70~80%,
PVA 3~5%,
Deionized water 10~20%,
Auxiliary agent 0.5~2%,
Crosslinking agent A 0.5~1%,
Crosslinking agent B 3~6%.
Preferably, the solid content of the polyvinyl acetate emulsion is 50%-60%.
Preferably, the degree of polymerization of the PVA is 1000-2000, alcoholysis degree 98-99%.
Preferably, the auxiliary agent includes at least one of defoamer, preservative, thixotropic agent.
Preferably, the crosslinking agent A is polymethylene phenyl isocyanate, and crosslinking agent B is polymethylene polyphenyl isocyanide
Acid esters, glue-joint strength can be strengthened using the different isocyanate crosslinking compounding of both activity, extend glue working life.
It is further preferred that the environment-friendly wood assembling glue includes following raw material by weight percentage：
Polyvinyl acetate emulsion 70~80%,
PVA 3~5%,
Deionized water 10~20%,
Defoamer 0.2~0.5%,
Preservative 0.2~0.5%,
Thixotropic agent 0.5~1%,
Crosslinking agent A 0.5~1%,
Crosslinking agent B 3~6%.
Preferably described defoamer is mineral oil, and preservative is benzo oxazoline ketone, thixotropic agent be aerosil or
Organobentonite.
A kind of method for preparing above-mentioned environment-friendly wood assembling glue, comprises the following steps：
(1) raw material is weighed by weight, deionized water is added into reactor, is delayed under 100-300r/min stir speed (S.S.)
It is slow to add part of auxiliary and PVA；
(2) it is constant to be kept stirring for speed, temperature is risen to 70-90 DEG C, is slowly added to crosslinking agent A, then constant temperature constant speed is stirred
1-3h is mixed, then is cooled to 50-70 DEG C, polyvinyl acetate emulsion is added, 20- is stirred under 200-500r/min stir speed (S.S.)
50min；
(3) crosslinking agent B is slowly added in mixture made from step (2) under the rotating speed of step (1), stirs 1-3h,
Remaining auxiliary agent is added, 40-90min is stirred under 500-1000r/min stir speed (S.S.)；
(4) sampling detection, filtering, discharging packaging.
Beneficial effects of the present invention：
(1) present invention is used from the polyvinyl alcohol of certain degree of polymerization and alcoholysis degree as protecting colloid and emulsifying agent, can
To prevent emulsion coagulation well, bin stability is improved, while preferable cementing effect can be kept during reaction, is increased
Add the water resistance of glue-line；
(2) present invention is compounded using two kinds of curing agent, and normal temperature cure speed is slow, realizes that room temperature stores for a long time；Temperature rises to
During the above, cross-linking reaction speed is substantially accelerated, and is much higher than rate of side reactions, therefore it is viscous to reach positioning in a short time
Intensity is connect, production efficiency is high；In addition solid wood of the invention assembling glue is one pack system, it is not necessary to the mixed glue in scene, it is easy for construction；
(3) the solid wood of the invention assembling glue degree of cross linking is controllable, has higher compression shear strength and good after solidification concurrently
Resistance to thawing performance.
Embodiment
With reference to specific embodiment, the present invention is described in detail.
Embodiment 1
Above raw material is commercially available, and wherein defoamer is mineral oil, and preservative is benzo oxazoline ketone, and thixotropic agent is
Aerosil, crosslinking agent A are polymethylene phenyl isocyanate, and crosslinking agent B is polymethylene multi-phenenyl isocyanate.
Raw material is weighed by above weight ratio, deionized water is added into reactor, under 100r/min stir speed (S.S.) slowly
Defoamer and PVA are added, it is constant to be kept stirring for speed, and temperature is risen into 80 DEG C, is slowly added to crosslinking agent A, then constant temperature constant speed
2h is stirred, then is cooled to 60 DEG C, polyvinyl acetate emulsion is added, 30min is stirred under 500r/min stir speed (S.S.), is slowly added
Enter crosslinking agent B, stir 2h, add thixotropic agent, preservative, 1h, sampling detection, mistake are stirred under 800r/min stir speed (S.S.)
Filter, discharging packaging.
Claims (7)
1. a kind of environment-friendly wood assembles glue, it is characterised in that including following raw material by weight percentage：
Polyvinyl acetate emulsion 70~80%,
PVA 3~5%,
Deionized water 10~20%,
Auxiliary agent 0.5~2%,
Crosslinking agent A 0.5~1%,
Crosslinking agent B 3~6%.
2. environment-friendly wood according to claim 1 assembles glue, it is characterised in that consolidating for the polyvinyl acetate emulsion contains
Measure as 50%-60%.
3. environment-friendly wood according to claim 1 assembles glue, it is characterised in that the degree of polymerization of the PVA is 1000-
2000, alcoholysis degree 98-99%.
4. environment-friendly wood according to claim 1 assembles glue, it is characterised in that the auxiliary agent includes defoamer, anti-corrosion
At least one of agent, thixotropic agent.
5. environment-friendly wood according to claim 4 assembles glue, it is characterised in that the defoamer is mineral oil, anti-corrosion
Agent is benzo oxazoline ketone, and thixotropic agent is aerosil or organobentonite.
6. environment-friendly wood according to claim 1 assembles glue, it is characterised in that the crosslinking agent A is polymethylene benzene
Based isocyanate, crosslinking agent B are polymethylene multi-phenenyl isocyanate.
7. it is a kind of prepare described in claim any one of 1-6 environment-friendly wood assembling glue method, it is characterised in that including with
Lower step：
(1) raw material is weighed by weight, deionized water is added into reactor, is slowly added under 100-300r/min stir speed (S.S.)
Enter part of auxiliary and PVA；
(2) it is constant to be kept stirring for speed, temperature is risen to 70-90 DEG C, is slowly added to crosslinking agent A, then constant temperature constant speed stirring 1-
3h, then 50-70 DEG C is cooled to, polyvinyl acetate emulsion is added, 20-50min is stirred under 200-500r/min stir speed (S.S.)；
(3) crosslinking agent B is slowly added in mixture made from step (2) under the rotating speed of step (1), stirs 1-3h, then add
Enter remaining auxiliary agent, 40-90min is stirred under 500-1000r/min stir speed (S.S.)；
(4) sampling detection, filtering, discharging packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711180138.4A CN107868631A (en) | 2017-11-23 | 2017-11-23 | A kind of environment-friendly wood assembling glue and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711180138.4A CN107868631A (en) | 2017-11-23 | 2017-11-23 | A kind of environment-friendly wood assembling glue and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107868631A true CN107868631A (en) | 2018-04-03 |
Family
ID=61754645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711180138.4A Pending CN107868631A (en) | 2017-11-23 | 2017-11-23 | A kind of environment-friendly wood assembling glue and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107868631A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370451A (en) * | 2018-10-19 | 2019-02-22 | 珠海鼎力工贸有限公司 | A kind of crack resistence splicing adhesive and preparation method thereof |
| CN112852349A (en) * | 2021-03-11 | 2021-05-28 | 安徽扬子地板股份有限公司 | Environment-friendly odor-free adhesive for wall decorative plate and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194671A (en) * | 2014-08-25 | 2014-12-10 | 海南金海浆纸业有限公司 | Adhesive and preparation method thereof |
| CN104479596A (en) * | 2014-12-03 | 2015-04-01 | 徐州工程学院 | Water-based environment-friendly plate splicing adhesive and preparation method thereof |
| CN105219307A (en) * | 2015-11-06 | 2016-01-06 | 江苏奇艳丽涂料有限公司 | Environment-friendly constant-pressure type timber assembling tackiness agent |
-
2017
- 2017-11-23 CN CN201711180138.4A patent/CN107868631A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194671A (en) * | 2014-08-25 | 2014-12-10 | 海南金海浆纸业有限公司 | Adhesive and preparation method thereof |
| CN104479596A (en) * | 2014-12-03 | 2015-04-01 | 徐州工程学院 | Water-based environment-friendly plate splicing adhesive and preparation method thereof |
| CN105219307A (en) * | 2015-11-06 | 2016-01-06 | 江苏奇艳丽涂料有限公司 | Environment-friendly constant-pressure type timber assembling tackiness agent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370451A (en) * | 2018-10-19 | 2019-02-22 | 珠海鼎力工贸有限公司 | A kind of crack resistence splicing adhesive and preparation method thereof |
| CN112852349A (en) * | 2021-03-11 | 2021-05-28 | 安徽扬子地板股份有限公司 | Environment-friendly odor-free adhesive for wall decorative plate and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180403 |
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| RJ01 | Rejection of invention patent application after publication |