CN103555128A - Surface adhesive convenient for demolding templates - Google Patents
Surface adhesive convenient for demolding templates Download PDFInfo
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- CN103555128A CN103555128A CN201310511616.0A CN201310511616A CN103555128A CN 103555128 A CN103555128 A CN 103555128A CN 201310511616 A CN201310511616 A CN 201310511616A CN 103555128 A CN103555128 A CN 103555128A
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- parts
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Abstract
The invention relates to a surface adhesive convenient for demolding templates. On the one hand, the surface adhesive is added with a brightening agent; by effective demulsification, miniature silicone oil liquid particles can be separated from a water phase and evenly adsorbed onto wood fibers, so that the slime content after template demolding can be reduced simultaneously when the smooth degree of the template is enhanced and demolding is enabled to be convenient; one the other hand, the surface adhesive is added with a flame retardant, so that the flame retardation property of the template can be enhanced and fire hazards are avoided.
Description
Technical field
The present invention relates to join glue field, be specifically related to a kind of face glue of being convenient to the template demoulding.
Background technology
Building template is the concrete structure engineering requisite instrument of constructing, and it directly has influence on the economic benefit of quality, speed, cost and the construction enterprises of engineering construction.The main template form of existing concrete structure engineering is plywood form, the in use demoulding of plywood form is difficult, and the number of turnover of template is few, this has all caused the raising of cost, in addition, because building template is generally light wood, easily initiation fire, therefore, needs a kind of building template of invention face glue, be coated in building template surface, it is addressed the above problem.
Summary of the invention
In view of this, the object of this invention is to provide a kind of face glue of being convenient to the template demoulding, be coated in building template surface, can not only make the smooth finish on building template surface increase, be convenient to the demoulding, and can improve the flame retardant properties of building template, avoid the generation of fire.
For achieving the above object, the face glue of being convenient to the template demoulding of the present invention, comprises following component by weight: 300～400 parts, formaldehyde, 160～220 parts, urea, 30～60 parts of properties-correcting agent, 3～12 parts of modified corn starchs, 10～20 parts of trimeric cyanamides, 8～15 parts of sodium cellulosates, 30～40 parts of brightening agents, 50～70 parts of fire retardants, 20～30 parts of ammonium chlorides, wherein said formaldehyde is that quality percentage composition is 37% industrial formol.
The face glue of being convenient to the template demoulding of the present invention, wherein preferred brightening agent is water miscible liquid, comprises by weight following component: acrylics monomer 20-30 part, negatively charged ion or nonionic surface active agent 2-3 part, initiator 1-2 part, dispersion agent 8-10 part, neutralizing agent 5-15 part, water 60-70 part.
The face glue of being convenient to the template demoulding of the present invention, wherein preferred properties-correcting agent is one or more of paraformaldehyde, acetaldehyde, propionic aldehyde and butyraldehyde.
The face glue of being convenient to the template demoulding of the present invention, wherein preferred fire retardant comprises following component by weight: ammonium low polyphosphate 50-80 part, ammonium pyrophosphate 10-15 part, Ureaphil 10-20 part, boric acid 10-15 part.
The face glue of being convenient to the template demoulding of the present invention, wherein preferred brightening agent is 32～36 parts.
Useful technique effect of the present invention is:
1. the face glue of being convenient to the template demoulding of the present invention, has added brightening agent, by effective breakdown of emulsion, can make small silicon oil liquid grain separate out from water, be adsorbed on equably on xylon, when improving template smooth finish, can reduce the foundry loam amount after the template demoulding, be convenient to the demoulding.
2. the face glue of being convenient to the template demoulding of the present invention, has added fire retardant, can improve the flame retardant properties of template, avoids the generation of fire.
Embodiment
Below in conjunction with embodiment and experimental data, to the present invention is above-mentioned, be described in more detail with other technical characterictic and advantage.
Embodiment 1: the preparation of face glue 1
Composition of raw materials:
| Raw material | Mass percent | Weight (g) |
| Formaldehyde | 37% | 300 |
| Urea | 98% | 160 |
| Properties-correcting agent (paraformaldehyde) | 99% | 30 |
| Modified corn starch | ? | 3 |
| Trimeric cyanamide | 99.8% | 10 |
| Sodium cellulosate | 99% | 8 |
| Fire retardant | ? | 50 |
| Brightening agent | ? | 30 |
| Ammonium chloride | ? | 20 |
| Sulfuric acid | 30% | (adjust pH) in right amount |
| Sodium hydroxide | 30% | (adjust pH) in right amount |
Concrete preparation process is as follows:
(1) weigh the formaldehyde that the quality percentage composition of 300g is 37%, the urea of 160g, the paraformaldehyde of 30g, the modified corn starch of 3g, the trimeric cyanamide of 10g, the sodium cellulosate of 8g, 50g concentration is that (wherein fire retardant is comprised of the component of following quality proportioning: ammonium low polyphosphate 31.25g for 50% the fire retardant aqueous solution, ammonium pyrophosphate 6.25g, Ureaphil 6.25g, boric acid 6.25g), 30g concentration is that (wherein brightening agent is comprised of the component of following quality proportioning: acrylics monomer 6.250g for 50% brightening agent water miscible liquid, negatively charged ion or nonionic surface active agent 0.625g, initiator 0.3125g, dispersion agent 2.5g, neutralizing agent 1.5625g, water 18.75g), , ammonium chloride 30g,
(2) formaldehyde that quality percentage composition step (1) being weighed is 37% adds in reactor, and heating formaldehyde temperature to 35 ℃～40 ℃, regulates pH=7.5 with sodium hydroxide solution, then the sodium cellulosate that adds 80g urea and step (1) to weigh;
(3) while continuing to be heated to formaldehyde temperature in reactor and reach 75 ℃～80 ℃, stop heating, by the remaining temperature of reactor self, be warming up to 90 ℃～92 ℃, with sodium hydroxide solution, regulate pH=9.5, then add 10g urea; Be incubated 90～120 minutes;
(4) adjust pH to 4.5～5.0, react to viscosity 60cp;
(5) adjust pH to 6.5～7.0, add 52g urea, temperature is controlled at 80 ℃～90 ℃, reacts to viscosity 140cp;
(6) adjust pH to 7.0～7.5, the paraformaldehyde, trimeric cyanamide and the modified corn starch that add 18g urea, step (1) to take, temperature maintains 75 ℃, is incubated 20～40 minutes, cooling;
(7) temperature is down to below 40 ℃, and the brightening agent solution, retardant solution and the ammonium chloride that then add step (1) to weigh, after stirring, regulate pH=7.5, put glue, obtain face glue.
The adjusted pH of take acid used is sulfuric acid.
Embodiment 2: the preparation of face glue 2
Composition of raw materials:
| Raw material | Mass percent | Weight (g) |
| Formaldehyde | 37% | 330 |
| Urea | 98% | 170 |
| Properties-correcting agent (acetaldehyde) | 99% | 40 |
| Modified corn starch | ? | 6 |
| Trimeric cyanamide | 99.8% | 13 |
| Sodium cellulosate | 99% | 10 |
| Fire retardant | ? | 56 |
| Brightening agent | ? | 34 |
| Ammonium chloride | ? | 23 |
| Sulfuric acid | 30% | (adjust pH) in right amount |
| Sodium hydroxide | 30% | (adjust pH) in right amount |
Concrete preparation process is as follows:
(1) weigh the formaldehyde that the quality percentage composition of 330g is 37%, the urea of 170g, the acetaldehyde of 40g, the modified corn starch of 6g, the trimeric cyanamide of 13g, the sodium cellulosate of 10g, 56g concentration is that (wherein fire retardant is comprised of the component of following quality proportioning: ammonium low polyphosphate 34.5g for 50% the fire retardant aqueous solution, ammonium pyrophosphate 7.0g, Ureaphil 7.5g, boric acid 7.0g), 34g concentration is that (wherein brightening agent is comprised of the component of following quality proportioning: acrylics monomer 7.5g for 50% brightening agent water miscible liquid, negatively charged ion or nonionic surface active agent 0.7g, initiator 0.4g, dispersion agent 3.0g, neutralizing agent 3.4g, water 19g), ammonium chloride 23g,
(2) formaldehyde that quality percentage composition step (1) being weighed is 37% adds in reactor, and heating formaldehyde temperature to 35 ℃～40 ℃, regulates pH=8.0 with sodium hydroxide solution, then the sodium cellulosate that adds 85g urea and step (1) to weigh;
(3) while continuing to be heated to formaldehyde temperature in reactor and reach 75 ℃～80 ℃, stop heating, by the remaining temperature of reactor self, be warming up to 90 ℃～92 ℃, with sodium hydroxide solution, regulate pH=9.5～11, then add 15g urea; Be incubated 90～120 minutes;
(4) adjust pH to 4.5～5.0, react to viscosity 70cp;
(5) adjust pH to 6.5～7.0, add 55g urea, temperature is controlled at 80 ℃～90 ℃, reacts to viscosity 145cp;
(6) adjust pH to 7.0～7.5, the acetaldehyde, trimeric cyanamide and the modified corn starch that add 15g urea, step (1) to take, temperature maintains 75 ℃, is incubated 20～40 minutes, cooling;
(7) temperature is down to below 40 ℃, and the brightening agent, fire retardant and the ammonium chloride that then add step (1) to weigh, after stirring, regulate pH=7.5, put glue, obtain face glue.
The adjusted pH of take acid used is sulfuric acid.
Embodiment 3: the preparation of face glue 3
Composition of raw materials:
| Raw material | Mass percent | Weight (g) |
| Formaldehyde | 37% | 360 |
| Urea | 98% | 180 |
| Properties-correcting agent (propionic aldehyde) | 99% | 50 |
| Modified corn starch | ? | 9 |
| Trimeric cyanamide | 99.8% | 16 |
| Sodium cellulosate | 99% | 13 |
| Fire retardant | ? | 62 |
| Brightening agent | ? | 38 |
| Ammonium chloride | ? | 26 |
| Sulfuric acid | 30% | (adjust pH) in right amount |
| Sodium hydroxide | 30% | (adjust pH) in right amount |
Concrete preparation process is as follows:
(1) weigh the formaldehyde that the quality percentage composition of 360g is 37%, the urea of 180g, the propionic aldehyde of 50g, the modified corn starch of 9g, the trimeric cyanamide of 16g, the sodium cellulosate of 13g, 62g concentration is that (wherein fire retardant is comprised of the component of following quality proportioning: ammonium low polyphosphate 39g for 50% the fire retardant aqueous solution, ammonium pyrophosphate 7.0g, Ureaphil 9g, boric acid 7.0g), 38g concentration is that (wherein brightening agent is comprised of the component of following quality proportioning: acrylics monomer 8.5g for 50% brightening agent water miscible liquid, negatively charged ion or nonionic surface active agent 1.0g, initiator 0.5g, dispersion agent 3.5g, neutralizing agent 3.5g, water 21g), ammonium chloride 26g,
(2) formaldehyde that quality percentage composition step being weighed is 37% adds in reactor, and heating formaldehyde temperature to 35 ℃～40 ℃, regulates pH=9.0 with sodium hydroxide solution, then the sodium cellulosate that adds 100g urea and step (1) to weigh;
(3) while continuing to be heated to formaldehyde temperature in reactor and reach 75 ℃～80 ℃, stop heating, by the remaining temperature of reactor self, be warming up to 90 ℃～92 ℃, with sodium hydroxide solution, regulate pH=10, then add 10g urea; Be incubated 90～120 minutes;
(4) adjust pH to 4.5～5.0, react to viscosity 70cp;
(5) adjust pH to 6.5～7.0, add 60g urea, temperature is controlled at 80 ℃～90 ℃, reacts to viscosity 150cp;
(6) adjust pH to 7.0～7.5, the propionic aldehyde, trimeric cyanamide and the modified corn starch that add 10g urea, step (1) to take, temperature maintains 75 ℃, is incubated 20～40 minutes, cooling;
(7) temperature is down to below 40 ℃, and the brightening agent, fire retardant and the ammonium chloride that then add step (1) to weigh, after stirring, regulate pH=7.8, put glue, obtain face glue.
The adjusted pH value acid used of take is sulfuric acid.
Embodiment 4: the preparation of face glue 4
Composition of raw materials:
| Raw material | Mass percent | Weight (g) |
| Formaldehyde | 37% | 400 |
| Urea | 98% | 200 |
| Properties-correcting agent (butyraldehyde) | 99% | 60 |
| Modified corn starch | ? | 12 |
| Trimeric cyanamide | 99.8% | 20 |
| Sodium cellulosate | 99% | 15 |
| Fire retardant | 98% | 70 |
| Brightening agent | 97% | 40 |
| Ammonium chloride | ? | 30 |
| Sulfuric acid | 30% | (adjust pH) in right amount |
| Sodium hydroxide | 30% | (adjust pH) in right amount |
Concrete preparation process is as follows:
(1) weigh the formaldehyde that the quality percentage composition of 400g is 37%, the urea of 200g, the butyraldehyde of 60g, the modified corn starch of 12g, the trimeric cyanamide of 20g, the sodium cellulosate of 15g, 70g concentration is that (wherein fire retardant is comprised of the component of following quality proportioning: ammonium low polyphosphate 44g for 50% the fire retardant aqueous solution, ammonium pyrophosphate 8g, Ureaphil 10g, boric acid 8g), , 40g concentration is that (wherein brightening agent is comprised of the component of following quality proportioning: acrylics monomer 9g for 50% the brightening agent aqueous solution, negatively charged ion or nonionic surface active agent 1.0g, initiator 1g, dispersion agent 3.5g, neutralizing agent 3.5g, water 22g), the ammonium chloride of 30g,
(2) formaldehyde that quality percentage composition step (1) being weighed is 37% adds in reactor, and heating formaldehyde temperature to 35 ℃～40 ℃, regulates pH=8.5 with sodium hydroxide solution, then the sodium cellulosate that adds 100g urea and step (1) to weigh;
(3) while continuing to be heated to formaldehyde temperature in reactor and reach 75 ℃～80 ℃, stop heating, by the remaining temperature of reactor self, be warming up to 90 ℃～92 ℃, with sodium hydroxide solution, regulate pH=11, then add 10g urea; Be incubated 90～120 minutes;
(4) adjust pH to 4.5～5.0, react to viscosity: 80cp;
(5) adjust pH to 6.5～7.0, add 60g urea, temperature is controlled at 80 ℃～90 ℃, reacts to viscosity 160cp;
(6) adjust pH to 7.0～7.5, the butyraldehyde, trimeric cyanamide and the modified corn starch that add 10g urea, step (1) to take, temperature maintains 75 ℃, is incubated 20～40 minutes, cooling;
(7) temperature is down to below 40 ℃, and the brightening agent, fire retardant and the ammonium chloride that then add step (1) to weigh, after stirring, regulate pH=7.6, put glue, obtain face glue.
The adjusted pH value acid used of take is sulfuric acid.
Reference examples
Composition of raw materials:
| Raw material | Mass percent | Weight (g) |
| Formaldehyde | 37% | 360 |
| Urea | 98% | 180 |
| Trimeric cyanamide | 99.8% | 16 |
| Sodium cellulosate | 99% | 13 |
| Ammonium chloride | ? | 26 |
| Sulfuric acid | 30% | (adjust pH) in right amount |
| Sodium hydroxide | 30% | (adjust pH) in right amount |
Concrete preparation process is as follows:
(1) weigh the formaldehyde that the quality percentage composition of 360g is 37%, the urea of 180g, the trimeric cyanamide of 16g, the sodium cellulosate of 13g, the ammonium chloride of 26g;
(2) formaldehyde that quality percentage composition step (1) being weighed is 37% adds in reactor, and heating formaldehyde temperature to 35 ℃～40 ℃, regulates pH=7.5～9.0 with sodium hydroxide solution, then the sodium cellulosate that adds 100g urea and step (1) to weigh;
(3) while continuing to be heated to formaldehyde temperature in reactor and reach 75 ℃～80 ℃, stop heating, by the remaining temperature of reactor self, be warming up to 90 ℃～92 ℃, with sodium hydroxide solution, regulate pH=9.5, then add 10g urea; Be incubated 90～120 minutes;
(4) adjust pH to 4.5～5.0, react to viscosity 60cp;
(5) adjust pH to 6.5～7.0, add 60g urea, temperature is controlled at 80 ℃～90 ℃, reacts to viscosity 145cp;
(6) adjust pH to 7.0～7.5, the trimeric cyanamide that adds 10g urea and step (1) to take, temperature maintains 75 ℃, stirs, and is incubated 20～40 minutes, cooling;
(7) temperature is down to below 40 ℃, regulates pH=7.8, adds ammonium chloride, stirs, and puts glue, obtains face glue.
The adjusted pH value acid used of take is sulfuric acid.
Test example
Utilize the face glue of being convenient to the template demoulding of the embodiment of the present invention 1 to 4 method acquisition and the face glue of reference examples acquisition to be coated in respectively on template test specimen 1,2,3,4,5; According to GB8624-2006, judge, template test specimen 1,2,3 and 4 combustionproperty are B level, be flame retardancy material of construction, and the combustionproperty of template test specimen 5 are E level, is combustible building materials, and as can be seen here, of the present invention glue has better flame retardant properties.
Test template test specimen 1,2,3,4 and 5 surface brightness, its result is as follows:
Table 1
| Numbering | Luminance brightness/mcd |
| Embodiment 1 | 300 |
| Embodiment 2 | 285 |
| Embodiment 3 | 290 |
| Embodiment 4 | 288 |
| Reference examples | 132 |
As shown in Table 1, the surface brightness of the template test specimen of embodiment 1-4 is apparently higher than the surface brightness of reference examples template test specimen, and therefore, the face glue of being convenient to the template demoulding of the present invention, obviously improves the luminance brightness of building template, can reduce the foundry loam amount after the demoulding.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (5)
1. a face glue of being convenient to the template demoulding, it is characterized in that, comprise by weight following component: 300～400 parts, formaldehyde, 160～220 parts, urea, 30～60 parts of properties-correcting agent, 3～12 parts of modified corn starchs, 10～20 parts of trimeric cyanamides, 8～15 parts of sodium cellulosates, 30～40 parts of brightening agents, 50～70 parts of fire retardants, 20～30 parts of ammonium chlorides, wherein said formaldehyde is that quality percentage composition is 37% industrial formol.
2. the face glue of being convenient to the template demoulding according to claim 1, it is characterized in that, described brightening agent is water miscible liquid, comprise by weight following component: acrylics monomer 20-30 part, negatively charged ion or nonionic surface active agent 2-3 part, initiator 1-2 part, dispersion agent 8-10 part, neutralizing agent 5-15 part, water 60-70 part.
3. the face glue of being convenient to the template demoulding according to claim 1, is characterized in that, described properties-correcting agent is one or more of paraformaldehyde, acetaldehyde, propionic aldehyde and butyraldehyde.
4. the face glue of being convenient to the template demoulding according to claim 1, is characterized in that, described fire retardant comprises following component by weight: ammonium low polyphosphate 50-80 part, ammonium pyrophosphate 10-15 part, Ureaphil 10-20 part, boric acid 10-15 part.
5. the face glue of being convenient to the template demoulding according to claim 1, is characterized in that, described brightening agent is 32～36 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511616.0A CN103555128B (en) | 2013-10-25 | 2013-10-25 | Be convenient to the face glue of the template demoulding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511616.0A CN103555128B (en) | 2013-10-25 | 2013-10-25 | Be convenient to the face glue of the template demoulding |
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| Publication Number | Publication Date |
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| CN103555128A true CN103555128A (en) | 2014-02-05 |
| CN103555128B CN103555128B (en) | 2015-11-11 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0568613B1 (en) * | 1991-01-25 | 1995-09-06 | Worldtech Coatings, Inc. | Plastic-coated concrete form panel |
| CN1215073A (en) * | 1996-04-23 | 1999-04-28 | 株式会社林丽 | Strippable coating water dispersion material |
| CN101148573A (en) * | 2006-09-21 | 2008-03-26 | 漪丽科技(深圳)有限公司 | Waterproof edge sealing agent used for floor |
| CN101412231A (en) * | 2008-11-10 | 2009-04-22 | 德华兔宝宝装饰新材股份有限公司 | Method for producing flame-retardant glued board |
| CN102086295A (en) * | 2010-06-28 | 2011-06-08 | 永港伟方（北京）科技股份有限公司 | Urea-formaldehyde resin for non-dewatering particleboard and preparation method thereof |
| CN103031095A (en) * | 2012-12-12 | 2013-04-10 | 永港伟方（北京）科技股份有限公司 | Adhesive for veneering of artificial board and preparation method of adhesive |
| CN103360559A (en) * | 2013-07-25 | 2013-10-23 | 南京市荣达树脂有限公司 | Modified urea-formaldehyde resin |
-
2013
- 2013-10-25 CN CN201310511616.0A patent/CN103555128B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0568613B1 (en) * | 1991-01-25 | 1995-09-06 | Worldtech Coatings, Inc. | Plastic-coated concrete form panel |
| CN1215073A (en) * | 1996-04-23 | 1999-04-28 | 株式会社林丽 | Strippable coating water dispersion material |
| CN101148573A (en) * | 2006-09-21 | 2008-03-26 | 漪丽科技(深圳)有限公司 | Waterproof edge sealing agent used for floor |
| CN101412231A (en) * | 2008-11-10 | 2009-04-22 | 德华兔宝宝装饰新材股份有限公司 | Method for producing flame-retardant glued board |
| CN102086295A (en) * | 2010-06-28 | 2011-06-08 | 永港伟方（北京）科技股份有限公司 | Urea-formaldehyde resin for non-dewatering particleboard and preparation method thereof |
| CN103031095A (en) * | 2012-12-12 | 2013-04-10 | 永港伟方（北京）科技股份有限公司 | Adhesive for veneering of artificial board and preparation method of adhesive |
| CN103360559A (en) * | 2013-07-25 | 2013-10-23 | 南京市荣达树脂有限公司 | Modified urea-formaldehyde resin |
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| Title |
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