CN102002333A - Plasterboard edge adhesive and preparation method thereof - Google Patents
Plasterboard edge adhesive and preparation method thereof Download PDFInfo
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- CN102002333A CN102002333A CN 201010533548 CN201010533548A CN102002333A CN 102002333 A CN102002333 A CN 102002333A CN 201010533548 CN201010533548 CN 201010533548 CN 201010533548 A CN201010533548 A CN 201010533548A CN 102002333 A CN102002333 A CN 102002333A
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Abstract
The invention discloses a plasterboard edge adhesive and a preparation method thereof. The adhesive comprises the following raw material components by weight parts: 1.1 to 1.6 parts of polyvinyl acetate, 25 to 35 parts of vinyl acetate, 10 to 20 parts of butyl acrylate, 0.8 to 1.5 parts of crylic acid, 0.6 to 1.0 part of N-hydroxymethyl acrylamide, 0.50 to 1.5 parts of emulsifier, 0.10 to 0.40 part of sodium dodecylsulfate, 40 to 50 parts of deionized water, 0.15 to 0.30 part of initiator and 0.2 to 0.5 part of sodium bicarbonate. The adhesive is prepared according to the following steps: a part of raw materials are dissolved, and then the raw materials are pumped into a reaction kettle; and the raw materials and a monomer mixture in the kettle are controlled at a certain reaction temperature under the presence of the initiator to carry out a polymerization reaction to prepare the product. The plasterboard edge adhesive has the advantages of strong bonding strength, short solidification (bonding) time, difficult stripping from paper after being heated and the like.
Description
Technical field:
The invention belongs to organic adhesion agent high molecular polymer field, be specifically related to the sticking limit of a kind of plasterboard glue and preparation method thereof.
Background technology
Along with China's rapid development of economy, Thistle board is as main product in the light plate of building material, applied rapidly at architectural decoration, many enterprises also all actively plan to adopt domestic or introduce the advanced foreign technology facility investment and build the plasterboard project.This not only can advance the technical progress of China's plasterboard industry, promote the deep processing of gypsum resource, alleviate the Thistle board market situation that supply falls short of demand, and, promote China's building material industrial expansion and can play crucial effect adjusting the product structure of domestic materials for wall.
The quality factor that influences Thistle board is a lot: the fluctuation of the quality index of gesso is big on the one hand, and calcium plaster water distribution and chemical combination are made a big impact, and directly influences quality product; On the other hand since wood pulp wastepaper as raw material domestic being difficult for of native paper collect, so the quality index of facial tissue also often fluctuation is bigger, influence the Thistle board quality product; Other subsidiary material such as the 3rd sticking limit jelly are not owing to there is effective equipment to measure and control, and often waste is a lot, easily causes plate emaciated face paper, corrugate, defectives such as plasterboard strength degradation.
According to the open source information introduction, at present the sticking limit of Thistle board glue mainly is to adopt the tackiness agent that modified corn starch makes or adopt a kind of of W-Gum, whole meal flour or corn flour, the binding agent that obtains through the reactor heated and stirred with water, initiator etc., though aforesaid method technology is simple, equipment is single, with low cost, but can not satisfy the needs of Thistle board development,, plate face fast as the production machine speed can not take off paper, corrugate, and plasterboard intensity is high.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention discloses the sticking limit of a kind of plasterboard glue and preparation method thereof.The sticking limit of plasterboard of the present invention glue has the bond strength height, and (bonding) time of solidifying is short, heats characteristics such as back glue and paper are difficult for peeling off.
The present invention adopts following technical scheme for achieving the above object:
The sticking limit of a kind of plasterboard glue, it is characterized in that: the weight part of its feed composition is:
Polyvinyl alcohol 1.1-1.6
Vinyl acetate 25-35
Butyl acrylate 10-20
Vinylformic acid 0.8-1.5
N hydroxymethyl acrylamide 0.6-1.0
Emulsifying agent 0.50-1.5
Sodium lauryl sulphate 0.10-0.40
Deionized water 40-50
Initiator 0.15-0.30
Sodium bicarbonate 0.2-0.5,
Described emulsifying agent is the emulsifier op-10 that Shanghai Tiantan Accessory Ingredient Co., Ltd produces; Described initiator is an ammonium persulphate.
The preparation method of the sticking limit of described plasterboard glue is characterized in that: specifically comprise the steps:
(1) drop in the dissolution kettle polyvinyl alcohol and deionized water and stirring, elevated temperature is to 85-92 ℃, and polyvinyl alcohol cools the temperature to room temperature after dissolving evenly fully, and the weight ratio of polyvinyl alcohol and deionized water is (1.1-1.6): 27.5;
(2) with the sodium lauryl sulphate of formula rate and emulsifying agent with the deionized water dissolving after, join in the glue of step (1), require liquid feeding limit, limit to stir, after fully stirring, with the pH value of strong base-weak acid salt regulator solution to 8-9;
(3) mixed solution that step (2) is stirred filters, and collects filtrate;
(4) step (3) filtrate filtered is joined in the reactor;
(5) pressing formula rate mixes vinyl acetate, butyl acrylate, three kinds of monomers of vinylformic acid;
(6) 10-15% with step (5) mix monomer total amount joins in the reactor, stir, after 25-35 minute, about 20% initiator in the formula rate is joined in the reactor, continue to stir and begin and heat up, when being raised to 60-65 ℃, temperature stops heating, the temperature of system can continue to raise voluntarily under the effect of reaction heat, when temperature is raised to about 65-70 ℃, reflux on the reactor begins to occur refluxing, when temperature is raised to about 80 ℃, reflux materials weakens gradually until not having in the reflux on the reactor;
(7) N hydroxymethyl acrylamide of formula rate and sodium bicarbonate are mixed and be dissolved in a certain amount of deionized water, stir, be mixed with the mixed aqueous solution that concentration is 5-10%;
(8) when step (6) reaction refluxes end, begin in reactor, to drip respectively the N hydroxymethyl acrylamide that remaining three kinds of monomeric mixtures that step (5) mixes and step (7) prepare and the mixed aqueous solution of sodium bicarbonate, simultaneously about 60% initiator in the formula rate is added drop-wise in the reactor, constantly stir, the dropping time should be controlled at 4-5 hour, and control reaction temperature is not higher than 80 ℃;
(9) after above-mentioned each material dropwises, system temperature can be elevated to 85-92 ℃ voluntarily, and join remaining initiator in the formula rate in the reaction system this moment, continues to stir, and is incubated after 1-1.5 hour, and polyreaction finishes;
(10) after insulation finished, the monomeric substance that remaining unreacted in the reactor is intact was taken away, and when temperature in the kettle dropped to below 50 ℃, the pH value of regulating product with the sodium hydroxide solution of 10-20% was 6-7.
The preparation method of the sticking limit of described plasterboard glue is characterized in that: described initiator will be mixed with the aqueous solution of 4-6% earlier when adding reaction system, the form with the aqueous solution joins in the reaction system then.
Advantage of the present invention: the sticking limit of plasterboard of the present invention glue, it is strong to have bond strength, and (bonding) time of solidifying is short, heats advantages such as back glue and paper are difficult for peeling off.
Embodiment
Below in conjunction with embodiment the present invention is explained.
Embodiment 1:
1, dissolution process:
The polyvinyl alcohol of 1.1kg-1799 and 27.5kg deionized water are put in the dissolution kettle, be warmed up to 90 ℃ of dissolvings fully, be cooled to room temperature.Then the sodium lauryl sulphate of 0.18kg and 0.75kg emulsifier op-10 are joined under whipped state in polyvinyl alcohol-1799 glue with 1.5kg deionized water dissolving back, 0.15kg re-adjustment system pH value filtered the back and is pumped in the reactor with pump to 8-9 after sodium bicarbonate was dissolved into solution with the 1.5kg deionized water.
2, reaction process:
(1) be that the 6.11kg mix monomer joins and carries out pre-emulsification 30 minutes in the polyvinyl alcohol glue by 13% of 27.8kg vinyl acetate, 18kg butyl acrylate and 1.2kg vinylformic acid mix monomer (hereinafter to be referred as mix monomer) total amount, after finishing, pre-emulsification also 0.045kg ammonium persulphate (being mixed with 5% aqueous solution) is joined in the polyvinyl alcohol glue, continue to stir, and begin to heat up.When being raised to 60-65 ℃, temperature stops heating.
(2) under the effect of ammonium persulphate, though stop heating, temperature raises voluntarily, when temperature more than 65 ℃ the time, reaction system begins by the blue phase of leucismus, the reflux on the reactor begins to occur refluxing simultaneously.When temperature is raised to 80 ℃ of left and right sides, reflux and weaken gradually until not having.The mix monomer that drips total amount residue 87% this moment is 40.89kg and 0.72kgN-n-methylolacrylamide and 0.18kg sodium bicarbonate (being dissolved into the aqueous solution with the 12.8kg deionized water), the dropping time should be controlled at 4-5 hour, when dripping vinyl acetate, butyl acrylate and vinylformic acid mix monomer and N hydroxymethyl acrylamide and sodium bicarbonate, also to add 0.135kg ammonium persulphate (being mixed with 5% aqueous solution).In reaction process, temperature of reaction is not higher than 80 ℃.
(3) because the effect of initiator ammonium persulfate reacts stronger, after mix monomer and N hydroxymethyl acrylamide add, when temperature of reaction rises to 90 ℃ of left and right sides voluntarily, add 0.045kg ammonium persulphate (being mixed with 5% aqueous solution), insulation 60min, polyreaction is finished substantially.
3, postprocessing working procedures:
After insulation finishes, use the vacuum tightness of 200mmHg to extract unreacted monomer 30 minutes, when temperature drops to below 50 ℃, add the 1.5kg10% sodium hydroxide solution and regulate till the pH value 6-7.
Embodiment 2:
1, dissolution process is
The polyvinyl alcohol of 1.5kg-1799 and 27.5kg deionized water are put in the dissolution kettle, be warmed up to 90 ℃ of dissolvings fully, be cooled to room temperature.Then the sodium lauryl sulphate of 0.18kg and 0.6kg emulsifier op-10 are joined under whipped state in polyvinyl alcohol-1799 glue with 1.5kg deionized water dissolving back, 0.15kg re-adjustment system pH value was to 8-9 after sodium bicarbonate was dissolved into solution with the 1.5kg deionized water, filter the back and be pumped into the reactor China and foreign countries with pump, all the other are identical with embodiment 1.
Embodiment 3:
2, reaction process is
(1) be that the 6.12kg mix monomer joins and carries out pre-emulsification 30 minutes in the polyvinyl alcohol glue by 13% of 29.6kg vinyl acetate, 16.1kg butyl acrylate and 1.35kg vinylformic acid mix monomer (hereinafter to be referred as mix monomer) total amount, after finishing, pre-emulsification also 0.045kg ammonium persulphate (being mixed with 5% aqueous solution) is joined in the polyvinyl alcohol glue, continue to stir, and begin to heat up.When being raised to 60-65 ℃, temperature stops heating.
(2) under the effect of ammonium persulphate, though stop heating, temperature raises voluntarily, when temperature more than 65 ℃ the time, reaction system begins by the blue phase of leucismus, the reflux on the reactor begins to occur refluxing simultaneously.When temperature is raised to 80 ℃ of left and right sides, reflux and weaken gradually until not having.The mix monomer that drips total amount residue 87% this moment is that all the other are identical with embodiment 1 outside 40.88kg and 0.9kgN-n-methylolacrylamide and the 0.18kg sodium bicarbonate (being dissolved into the aqueous solution with the 13.3kg deionized water).
Viscosity of the present invention is according to GB/T 2794-1995 standard test.
Solid content is according to GB/T 2793-1995 standard test.
PH value is according to GB/T 14518-1993 standard test.
Solidify (bonding) time and bonding after the heat stability test index do not have unified standard to detect at present as yet, according to practice and purchaser's requirement, each index detects according to following method.
The bonding time: sticking limit glue is uniformly coated on all types of cardboards (yellow, ash, green cardboard and special-purpose cardboard) with coating device, in specific time, checks the sticking limit glue that is coated with destructiveness to all types of cardboards.
Thermostability after bonding: sticking limit glue is uniformly coated on (upper paper 160g/m in the standard test block with coating device
2, the paper 180g/m of lower floor
2, 10 * 5cm size), then upper and lower layer paper was hung 60 seconds after bonding, put into 160 ℃ baking oven, dry 60 seconds, check upper and lower layer of paper after bonding whether to have the phenomenon of coming unglued.
The technical indicator of the sticking limit of the plasterboard glue that embodiment 1-3 is prepared is as follows:
Claims (3)
1. a plasterboard glues limit glue, and it is characterized in that: the weight part of its feed composition is:
Polyvinyl alcohol 1.1-1.6
Vinyl acetate 25-35
Butyl acrylate 10-20
Vinylformic acid 0.8-1.5
N hydroxymethyl acrylamide 0.6-1.0
Emulsifying agent 0.50-1.5
Sodium lauryl sulphate 0.10-0.40
Deionized water 40-50
Initiator 0.15-0.30
Sodium bicarbonate 0.2-0.5,
Described emulsifying agent is the emulsifier op-10 that Shanghai Tiantan Accessory Ingredient Co., Ltd produces; Described initiator is an ammonium persulphate.
2. the preparation method of the sticking limit of plasterboard as claimed in claim 1 glue is characterized in that: specifically comprise the steps:
(1) drop in the dissolution kettle polyvinyl alcohol and deionized water and stirring, elevated temperature is to 85-92 ℃, and polyvinyl alcohol cools the temperature to room temperature after dissolving evenly fully, and the weight ratio of polyvinyl alcohol and deionized water is (1.1-1.6): 27.5;
(2) with the sodium lauryl sulphate of formula rate and emulsifying agent with the deionized water dissolving after, join in the glue of step (1), require liquid feeding limit, limit to stir, after fully stirring, with the pH value of strong base-weak acid salt regulator solution to 8-9;
(3) mixed solution that step (2) is stirred filters, and collects filtrate;
(4) step (3) filtrate filtered is joined in the reactor;
(5) pressing formula rate mixes vinyl acetate, butyl acrylate, three kinds of monomers of vinylformic acid;
(6) 10-15% with step (5) mix monomer total amount joins in the reactor, stir, after 25-35 minute, about 20% initiator in the formula rate is joined in the reactor, continue to stir and begin and heat up, when being raised to 60-65 ℃, temperature stops heating, the temperature of system can continue to raise voluntarily under the effect of reaction heat, when temperature is raised to about 65-70 ℃, reflux on the reactor begins to occur refluxing, when temperature is raised to about 80 ℃, reflux materials weakens gradually until not having in the reflux on the reactor;
(7) N hydroxymethyl acrylamide of formula rate and sodium bicarbonate are mixed and be dissolved in a certain amount of deionized water, stir, be mixed with the mixed aqueous solution that concentration is 5-10%;
(8) when step (6) reaction refluxes end, begin in reactor, to drip respectively the N hydroxymethyl acrylamide that remaining three kinds of monomeric mixtures that step (5) mixes and step (7) prepare and the mixed aqueous solution of sodium bicarbonate, simultaneously about 60% initiator in the formula rate is added drop-wise in the reactor, constantly stir, the dropping time should be controlled at 4-5 hour, and control reaction temperature is not higher than 80 ℃;
(9) after above-mentioned each material dropwises, system temperature can be elevated to 85-92 ℃ voluntarily, and join remaining initiator in the formula rate in the reaction system this moment, continues to stir, and is incubated after 1-1.5 hour, and polyreaction finishes;
(10) after insulation finished, the monomeric substance that remaining unreacted in the reactor is intact was taken away, and when temperature in the kettle dropped to below 50 ℃, the pH value of regulating product with the sodium hydroxide solution of 10-20% was 6-7.
3. the preparation method of the sticking limit of plasterboard according to claim 3 glue is characterized in that: described initiator will be mixed with the aqueous solution of 4-6% earlier when adding reaction system, the form with the aqueous solution joins in the reaction system then.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105335484A CN102002333B (en) | 2010-11-03 | 2010-11-03 | Plasterboard edge adhesive and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105335484A CN102002333B (en) | 2010-11-03 | 2010-11-03 | Plasterboard edge adhesive and preparation method thereof |
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| CN102002333A true CN102002333A (en) | 2011-04-06 |
| CN102002333B CN102002333B (en) | 2012-10-31 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962220A (en) * | 2015-07-24 | 2015-10-07 | 厦门金盈丰工贸有限公司 | Building environment-friendly glue and production method |
| CN110964464A (en) * | 2019-10-22 | 2020-04-07 | 山东宇龙高分子科技有限公司 | Preparation method of marble adhesive |
| CN112812238A (en) * | 2020-12-30 | 2021-05-18 | 山西佳维新材料股份有限公司 | Polycarboxylate superplasticizer and preparation method and application thereof |
| CN114525088A (en) * | 2022-02-18 | 2022-05-24 | 郑州轻工业大学 | Water-based adhesive with low glass transition temperature and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570673A (en) * | 2009-05-21 | 2009-11-04 | 上海东和胶粘剂有限公司 | KT sheet gum and preparation method thereof |
-
2010
- 2010-11-03 CN CN2010105335484A patent/CN102002333B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570673A (en) * | 2009-05-21 | 2009-11-04 | 上海东和胶粘剂有限公司 | KT sheet gum and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962220A (en) * | 2015-07-24 | 2015-10-07 | 厦门金盈丰工贸有限公司 | Building environment-friendly glue and production method |
| CN104962220B (en) * | 2015-07-24 | 2018-07-17 | 厦门金盈丰工贸有限公司 | A kind of Environment-friendlyglue glue for building and production method |
| CN110964464A (en) * | 2019-10-22 | 2020-04-07 | 山东宇龙高分子科技有限公司 | Preparation method of marble adhesive |
| CN112812238A (en) * | 2020-12-30 | 2021-05-18 | 山西佳维新材料股份有限公司 | Polycarboxylate superplasticizer and preparation method and application thereof |
| CN112812238B (en) * | 2020-12-30 | 2023-06-06 | 山西佳维新材料股份有限公司 | Polycarboxylate superplasticizer and preparation method and application thereof |
| CN114525088A (en) * | 2022-02-18 | 2022-05-24 | 郑州轻工业大学 | Water-based adhesive with low glass transition temperature and preparation method and application thereof |
| CN114525088B (en) * | 2022-02-18 | 2024-03-22 | 郑州轻工业大学 | Water-based adhesive with low glass transition temperature and preparation method and application thereof |
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| CN102002333B (en) | 2012-10-31 |
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