KR101595275B1 - Binder Composition for Environmental-friendly Insulating Material and Method for Preparing the Same - Google Patents
Binder Composition for Environmental-friendly Insulating Material and Method for Preparing the Same Download PDFInfo
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- KR101595275B1 KR101595275B1 KR1020150077144A KR20150077144A KR101595275B1 KR 101595275 B1 KR101595275 B1 KR 101595275B1 KR 1020150077144 A KR1020150077144 A KR 1020150077144A KR 20150077144 A KR20150077144 A KR 20150077144A KR 101595275 B1 KR101595275 B1 KR 101595275B1
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- acid polymer
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions 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; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/08—Homopolymers or copolymers of acrylic acid esters
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- C08K3/0016—
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
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- C—CHEMISTRY; METALLURGY
- 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
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
Abstract
Description
The present invention relates to a binder composition for environmentally friendly insulation and a method for producing the same. More particularly, the present invention relates to a binder composition for environmentally friendly heat insulating materials, which is produced through a hot blending modifying process while using a sugar mainly used as a food sweetener, and a method for producing the same.
A typical resin for binder used as a binder of a heat insulating material applied to buildings such as a glass surface and a rock surface is a water-soluble phenol resin of the Rezole type.
Resol type phenol resins as thermosetting resins as described above have an advantage of being excellent in cross-linkability in a thermal condition, in addition, they are well soluble in water and have excellent affinity for mineral fibers, specifically glass fibers, and relatively low cost.
These resols, however, can be used to promote the reaction between phenol and formaldehyde and to reduce the level of residual phenol in the resin in the presence of a base catalyst in a molar ratio of formaldehyde / And condensation of formaldehyde. The condensation reaction between phenol and formaldehyde is carried out with a limited degree of condensation of the monomers to avoid the formation of long, relatively water-insoluble chains in order to reduce the possibility of dilution. As a result, this resin contains a certain percentage of unreacted monomers, specifically formaldehyde, and the presence of this formaldehyde is undesirable due to already known hazards.
Because of this, resins based on resole are generally treated with urea, which reacts with free formaldehyde by capturing the formaldehyde in the form of a nonvolatile urea-formaldehyde condensate. The presence of urea in the resin further enables to introduce it in a relatively large amount without affecting the operating quality of the resin without detriment to the mechanical properties of the final product, thereby significantly reducing the overall cost of the resin, The result is a clear economic advantage.
Nevertheless, under temperature conditions to crosslink the resin, urea-formaldehyde condensates are not stable, they are decomposed and recovered to formaldehyde and urea, and they are released to the factory atmosphere.
Increasingly restrictive environmental protection regulations require manufacturers to further reduce undesirable emissions, especially formaldehyde levels.
Accordingly, the present inventors have found that a binder which is eco-friendly and has excellent physical properties can be provided when a binder is produced through a hot blending modifying process while using a saccharide mainly used as a sweetener for food instead of a conventional phenol formaldehyde resin binder. Completed.
The present invention has been made to solve the above problems, and an object of the present invention is to provide a binder composition for environmentally friendly insulation of formaldehyde using sugar which is mainly used as a sweetener for foods instead of conventional phenol formaldehyde resin binders.
Another object to be solved by the present invention is to provide a method for preparing a phenol-formaldehyde resin-based binder, which can be produced through a hot blending modification process using a sugar, which is mainly used as a sweetener for foods, And a method for producing a binder for environmentally friendly insulation of formaldehyde excellent in compatibility.
In order to solve the above-mentioned problems, the present invention provides a starch- And a binder polymer for an environment-friendly heat insulating material comprising an acrylic acid polymer.
In the present invention, the saccharide can be mixed with the acrylic acid polymer and reacted with the acrylic acid polymer during the production of the acrylic acid polymer.
In the present invention, the saccharide is 20 to 60% by weight based on the total weight of the binder composition, the acrylic acid polymer is 6 to 36% by weight based on the total weight of the binder composition, and the binder composition for the environmentally- , And the total weight of the saccharide, the acrylic acid polymer, the water, and the additive may be 100% by weight.
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In the present invention, the saccharide to which the starch has been enzymatically reacted is selected from the group consisting of glucose, high fructose corn syrup, isomerized sugar, maltose, maltose syrup, cyclodextrin, isomaltooligosaccharide, starch syrup and polyglycitol syrup .
In the present invention, the acrylic acid polymer is selected from the group consisting of methacrylic acid; Acrylic acid; corrector; And at least one chemical selected from the group consisting of Potassium Persulfate, Sodium Hydrosulfite, Ammonium Persulfate, and sodium bisulfate.
In the present invention, the weight ratio of acrylic acid and methacrylic acid may be 1: 0.66 to 1: 4.
In the present invention, the neutralizing agent may be at least one selected from the group consisting of triethylamine, ammonium hydroxide, diethanolamine, triethanolamine, KOH, NaOH, and aqueous ammonia.
The saccharide may be selected from the group consisting of isomaltooligosaccharide, polyglycitol syrup, starch syrup, and high fructose corn syrup.
In order to solve the above-mentioned problems, the present invention relates to a reaction product of a saccharide and an acrylic acid polymer;
water; And an additive, wherein the acrylic acid polymer comprises acrylic acid and methacrylic acid.
In the present invention, the saccharide is one obtained by enzymatically reacting starch and selected from the group consisting of glucose, high fructose corn syrup, isomerized sugar, maltose, malt syrup, cyclodextrin, isomaltooligosaccharide, starch syrup and polyglycitol syrup .
In the present invention, the weight ratio of acrylic acid and methacrylic acid may be 1: 0.66 to 1: 4.
In order to solve the above-mentioned problems, the present invention provides a method for producing a saccharide- An acidic solution is added to the mixed solution of the saccharide and water; And a diluting liquid of at least one chemical substance selected from the group consisting of potassium persulfate, sodium hydrosulfite, ammonium persulfate, and sodium bisulfate, 1 dropping stage; A reaction maintaining step of maintaining the reaction after the first dropping step; Which dilutes a diluent of one or more chemicals selected from the group consisting of potassium persulfate, sodium hydrosulfite, ammonium persulfate, and sodium bisulfate, Loading stage; A cooling step for cooling; And a neutralizing agent injecting step of injecting a neutralizing agent. The present invention also provides a method for manufacturing a binder for environmentally friendly heat insulating materials.
In the present invention, the acid solution may include acrylic acid and methacrylic acid, and the weight ratio of acrylic acid to methacrylic acid may be 1: 0.66 to 1: 4.
In the present invention, the saccharide may be selected from the group consisting of glucose, high fructose corn syrup, isomerized sugar, maltose, maltose syrup, cyclodextrin, isomaltooligosaccharide, starch syrup, and polyglycitol syrup.
In the present invention, the saccharide and water may be mixed and heated to 70 to 80 캜 in the heating step.
In the present invention, in the first dropping step, the mixture of methacrylic acid and acrylic acid and a mixture of potassium persulfate, sodium hydrosulfite, ammonium persulfate, sodium bisulfate, ) May be separately added to the diluted solution of one or more selected chemical substances.
In the present invention, the reaction can be maintained for 1 to 2 hours in the reaction maintaining step.
In the present invention, in the second dropping step, the aqueous solution is selected from the group consisting of Potassium Persulfate, Sodium Hydrosulfite, Ammonium Persulfate, and Sodium Bisulfate for 5 to 10 minutes. A dilution of one or more chemical substances can be added.
In the present invention, the neutralizing agent may be added to the neutralizing agent at 45 to 50 ° C so that the whole solution has pH 4 to 5.
In order to solve the above-mentioned problems, the present invention provides a method for producing a saccharide- An acidic solution is added to the mixed solution of the saccharide and water; And a diluting liquid of at least one chemical substance selected from the group consisting of potassium persulfate, sodium hydrosulfite, ammonium persulfate, and sodium bisulfate, 1 dropping stage; A reaction maintaining step of maintaining the reaction after the first dropping step; Which dilutes a diluent of one or more chemicals selected from the group consisting of potassium persulfate, sodium hydrosulfite, ammonium persulfate, and sodium bisulfate, Loading stage; A cooling step for cooling; And a neutralizing agent injecting step of injecting a neutralizing agent.
In the present invention, the acid solution may include acrylic acid and methacrylic acid, and the weight ratio of acrylic acid to methacrylic acid may be 1: 0.66 to 1: 4.
In the present invention, the saccharide may be selected from the group consisting of glucose, high fructose corn syrup, isomerized sugar, maltose, maltose syrup, cyclodextrin, isomaltooligosaccharide, starch syrup, and polyglycitol syrup.
The present invention relates to a method for preparing a binder for a starch, which is used as a food sweetener instead of phenol formaldehyde, which is mainly used as a binder for a heat insulating material, It is possible to provide an excellent environmentally friendly binder for formaldehyde without formaldehyde.
Hereinafter, the present invention will be described in more detail.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to the detailed description of the present invention, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.
The binder for eco-friendly thermal insulation according to the present invention is typically mixed with aminosilane as an adhesion promoter, sprayed on a glass surface or a rock surface, and then cured through a bobbin of 100 to 300 ° C. to produce a glass wool and a mineral wool .
First, components of the binder composition for environmentally friendly insulation according to the present invention will be described.
The binder composition for environmentally friendly insulation according to the present invention comprises: saccharides; Acrylic acid polymers; additive; And water.
The saccharide is preferably a saccharide which is used as a sweetener by reacting starch with an enzyme, and more specifically, a saccharide such as glucose, high fructose corn syrup, isomerized sugar, maltose, maltose syrup, cyclodextrin, isomaltooligosaccharide, starch syrup, polyglycitol syrup One or more of them may be selected. More preferably, the saccharide may be selected from the group consisting of isomaltooligosaccharide, polyglycitol syrup, starch syrup, and high fructose corn syrup. Preferably, the saccharide has a dextrose equivalent (DE = 100 * (the number of cleaved glycoside bonds / the number of glycoside bonds in the starting starch) is 20-35.
The saccharide may be used in an amount of 20 to 60% by weight based on the total weight of the binder composition.
The acrylic acid polymer acts as a crosslinking agent, and it preferably contains either methacrylic acid or acrylic acid, and either methacrylic acid or acrylic acid. The acrylic acid polymer is preferably 6 to 36 wt% based on the total weight of the binder composition.
More preferably, the acrylic acid polymer is used together with methacrylic acid, rather than acrylic acid alone, to further improve strength, water resistance and adhesion. Since the content of methacrylic acid is larger than that of acrylic acid, the content of the PH modifier can be reduced, so that the total volatile organic compound (TVOC) content of the final molded product can be reduced and the long-term properties of the glass wool / mineral wool Degradation can be improved. Further, in the present invention, when acrylic acid alone is used, a problem of lowering the strength may occur. On the other hand, in the present invention, when methacrylic acid is used alone, the resultant coating film is too brittle and the adhesive force is lowered. When the methacrylic acid is used in an amount exceeding 20% by weight based on the total weight of the composition, the viscosity is increased and the workability can be impaired. The acrylic acid and methacrylic acid may have good film strength, water resistance, and adhesion when the proper ratio (weight, acrylic acid: methacrylic acid) is 1: 0.66 to 1: 4.
Regarding the saccharides, it is important to select an appropriate amount of the acrylic acid polymer. The total weight of such an acrylic acid polymer is preferably 10 to 80 parts by weight relative to 100 parts by weight of saccharides. More preferably, the total weight of the acrylic acid polymer is 20 to 60 parts by weight based on 100 parts by weight of the saccharides. When the total weight of the acrylic acid polymer is less than 10 parts by weight based on 100 parts by weight of the saccharide, the unreacted saccharide remains, resulting in deterioration of bonding force with glass and rock, and deterioration of water resistance. When the total weight of the acrylic acid polymer is 10 parts by weight or more based on 100 parts by weight of the saccharide, a certain effect can be exhibited. However, when the total weight is 20 parts by weight or more, a more excellent effect may be exhibited.
The total weight of the acrylic acid polymer is 10 parts by weight or more based on 100 parts by weight of the saccharide, and when it is increased, the bonding strength is improved. However, when the amount exceeds 80 parts by weight based on 100 parts by weight of the saccharides, the water resistance is lowered. When the total weight of the acrylic acid polymer is 80 parts by weight or less based on 100 parts by weight of the saccharide, the water resistance is not seriously deteriorated. However, when the total weight is 60 parts by weight or less, the water resistance may be further improved. The acrylic acid polymer of the present invention may contain at least one chemical selected from the group consisting of Potassium Persulfate, Sodium Hydrosulfite, Ammonium Persulfate, and sodium bisulfate in an amount of from 0.5 to 5 % ≪ / RTI > by weight. Most preferably, ammonium persulfate is used.
The potassium persulfate, sodium hydrosulfite, ammonium persulfate or sodium bisulfate containing ammonium persulfate react with the monomer as an acrylic polymerization initiator, Monomers having the disclosed activity become a polymer as they grow, and are thus used as a function to impart activity to monomers.
The acrylic acid polymer of the present invention preferably contains 2 to 10% by weight of a neutralizing agent. The neutralizing agent is used to control the pH range. Specifically, at least one of triethanolamine, ammonium hydroxide, diethanolamine, triethanolamine, KOH, NaOH and ammonia water may be used.
The binder for eco-friendly heat insulating material according to the present invention can exert an excellent effect in that it is prepared through a hot blending denaturation process in which a saccharide is charged in advance in the production of an acrylic acid polymer and reacted with a saccharide and an acrylic acid polymer.
Specifically, the binder for eco-friendly thermal insulation according to the present invention is prepared by adding a saccharide to an acrylic acid polymer in advance by partially adding a saccharide and an acrylic acid polymer in advance when preparing a saccharide in the production of an acrylic acid polymer, thereby improving the water resistance. Lt; / RTI > This can exert an excellent effect on the water resistance and curing speed as compared with the binder prepared by simple mixing of the crosslinking agent of the saccharide with the acidic component with the catalyst. A catalyst is required in the process of producing a binder prepared by simple mixing of a saccharide and a crosslinking agent of the prepared acidic substance with a catalyst. However, hot blending in which a saccharide according to the present invention is added in advance of the production of an acrylic acid polymer to react the saccharide with an acrylic acid polymer In the denaturation step, it is possible to exhibit an excellent effect in that such a catalyst is not necessary.
As described above, the saccharide is produced by adding the saccharide in the production of the acrylic acid polymer in the same manner as in the group consisting of glucose, high fructose corn syrup, isomerized sugar, maltose, malt syrup, cyclodextrin, isomaltooligosaccharide, starch syrup and polyglycitol syrup When one or more species are selected, more excellent effects can be exhibited. Further, in the case of an acrylic acid polymer produced together with a saccharide, it is possible to exert more excellent effects when it contains methacrylic acid and acrylic acid at the same time. More preferably, the saccharide can exert more excellent effects when at least one member selected from the group consisting of isomaltooligosaccharide, polyglycitol syrup, starch syrup, and high fructose corn syrup is selected.
From another point of view, the present invention corresponds to a binder composition for environmentally friendly insulation comprising a reactant of a saccharide and an acrylic acid polymer. Alternatively, the present invention corresponds to a binder composition for an environment-friendly insulator comprising a reaction product of a saccharide and an acrylic acid polymer reacted with a saccharide and an acrylic acid polymer without a catalyst.
Specifically, the method for manufacturing the binder for environmentally friendly insulation according to the present invention is as follows.
(Step 1) A step of raising the temperature by mixing the saccharide and water in a flask,
(Step 2) A first dropping step of separating methacrylic acid and / or acrylic acid and ammonium persulfate diluted solution into a mixture of the saccharide and water for a predetermined time
(Step 3) holding the particles for a predetermined time after the first dropping step
(Step 4) and a second dropping step of dropping a diluted ammonium persulfate solution into a starting initiator
(Step 5) cooling after a predetermined time
(Step 6) Step of injecting neutralizing agent
As in the above steps, in the present invention, after the acrylic acid polymer containing methacrylic acid and / or acrylic acid, Ammonium Persulfate, and neutralizing agent is completely prepared, it is preferable to mix the methacrylic acid and / And / or the reaction of acrylic acid with ammonium persulfate and a neutralizing agent, it is possible to exert an excellent effect in water resistance, adhesion, curing rate, appearance and compatibility with aminosilane in that saccharides are mixed and reacted .
The ammonium persulfate may be at least one selected from the group consisting of Potassium Persulfate, Sodium Hydrosulfite, Ammonium Persulfate, and Sodium Bisulfate . In the step of raising the temperature by mixing the saccharide and water, saccharide and water are mixed and then heated to 70 to 80 캜, preferably 75 캜.
In the first dropping step, it is preferable to drop all or a mixture of methacrylic acid and acrylic acid in a dropwise manner, instead of dropping methacrylic acid or acrylic acid alone. Water, and adhesion when the ratio (weight, acrylic acid: methacrylic acid) of acrylic acid and methacrylic acid is 1: 0.66 to 1: 4.
On the other hand, dilute ammonium persulfate diluted solution is added dropwise.
The total weight of the methacrylic acid and / or acrylic acid is preferably 5 to 20% by weight based on the total weight of the binder composition. When both acrylic acid and methacrylic acid are used, the ratio (weight, acrylic acid: methacrylic acid) 0.66 to 1: 4, it can have a good film strength, water resistance, and adhesion.
The first dropping step is preferably carried out for 2 to 4 hours, more preferably 3 hours. Ammonium persulfate is preferably diluted in water in an amount of 0.5 to 5% by weight.
In the step of holding after the first dropping step, the reaction is allowed to proceed for 1 to 2 hours.
In the second dropping step, a dilution of Ammonium Persulfate is added dropwise for 5 to 10 minutes. The ammonium persulfate diluent may be the same as that used in the first dropping step, which is used as a starting additive.
In the cooling step, after 30 minutes to 1 hour after the second dropping step, the mixture is completely reacted until there is no further change in viscosity and then cooled. The preferable viscosity is 200 cps or less in consideration of workability.
In the step of adding the neutralizing agent, the neutralizing agent is added at a temperature of 45 to 50 ° C for a predetermined period of time,
Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited by the following examples.
Test Example 1
Comparison of properties according to kinds of saccharides
Water and saccharides were placed in a four-necked flask using the component content ratios shown in Table 1 below, and the temperature was raised to 75 ° C. Subsequently, a diluted ammonium persulfate diluent (diluted concentration: 20%) and acrylic acid were separated and simultaneously dropped for 3 hours. Subsequently, after a holding reaction for 90 minutes, a portion of diluted ammonium persulfate (diluted concentration: 20%) was added dropwise to the reaction mixture for 5 minutes. After 1 hour, no further change in viscosity was observed. Then, a neutralizing agent (ammonia water) was added at 45 to 50 ° C for 1 hour while paying attention to heat generation to adjust the pH to 4 to 5, followed by neutralization. Then, the physical properties thereof were evaluated, and the results are shown in Table 1 below.
Property evaluation items
- Physical properties Result symbol: ◎> ○> △> × in order.
- Coating strength: Check the condition after applying the glass plate coating film (thickness: 120 ㎛, curing condition: 200 ˚C for 10 minutes).
- Water resistance: After dipping each cured film in a constant temperature bath (25˚C), check the film condition.
- Compatibility with aminosilane: Considering the use of aminosilane as an additive in the manufacture of the product, simple mixing at room temperature to check whether foreign substances are generated.
- Appearence: Visually check the appearance and make it transparent and opaque.
[Table 1]
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As shown in the above Table 1, Production Examples 1 to 4 using polyglycitol syrup, high fructose corn syrup, starch syrup and isomaltooligosaccharide, which are used as sweeteners by enzymatic reaction of starch, Strength, water resistance, aminosilane compatibility, adhesion and appearance.
Test Example 2
Comparison of physical properties of acrylic acid polymers according to types and ratios of monomers
Water and saccharides were added to a four-necked flask using the ingredient content ratios shown in Table 2 below, and the temperature was raised to 75 ° C. Subsequently, a diluted ammonium persulfate diluted solution (diluted concentration: 20%) and a mixed solution of acrylic acid and / or methacrylic acid were separated and simultaneously dropped for 3 hours. Subsequently, after a holding reaction for 90 minutes, a portion of diluted ammonium persulfate (diluted concentration: 20%) was added dropwise to the reaction mixture for 5 minutes. Cooled when there was no change in viscosity for more than 1 hour. Then, a neutralizing agent (ammonia water) was added at 45 to 50 캜 for 1 hour while paying attention to heat generation, pH was adjusted to 4 to 5, and neutralization was completed. Then, the physical properties thereof were evaluated, and the results are shown in Table 2 below.
Property evaluation items
- Physical properties Result symbol: ◎> ○> △> × in order.
- Viscosity (Gardner): Determined by Gardner viscometer at constant temperature bath at 25 ℃
- Coating strength: Check the condition after applying the glass plate coating film (thickness: 120 ㎛, curing condition: 200 ˚C for 10 minutes).
- Water resistance: After dipping each cured film in a constant temperature bath (25 ℃), check the film condition.
- Adhesion (glass wool application): After dipping the glass wool cut into a certain size into the manufactured solution, remove it again and check the state after hardening at high temperature.
[Table 2]
The results are shown in Table 2. As a result, it was confirmed that Production Examples 11 to 14 were superior in terms of coating strength, water resistance, and adhesion to cotton after curing at a high temperature after applying a coating film to a glass plate after acrylic copolymerization according to the content shown in Table 2 above.
Also, the use of methacrylic acid was better than that of acrylic acid alone. The higher the content of methacrylic acid, the better the strength, water resistance and adhesion. However, when methacrylic acid alone was used, the coating film was too brittle and the adhesive strength was lowered. As shown in Table 2, the proper ratio of acrylic acid and methacrylic acid (weight, acrylic acid: methacrylic acid) is 1: 0.66 to 1: 4, which can have good film strength, water resistance and adhesion.
In Production Examples 14 to 15, as the content of methacrylic acid was increased, the viscosity was increased and the spraying operation could not be performed. Therefore, as a result of confirming the physical properties and workability, Production Examples 11 to 13 were good.
Test Example 3
Comparison of physical properties according to manufacturing process
As in the present invention, hot blending and denaturation processes in which starch (saccharides) are added together in the production of acrylic acid polymer to react starch (saccharides) with acrylic acid polymer, and stirring of starch (saccharides) Simple mixing) were compared.
Production Examples 16 to 18 (hot blending and denaturation step)
Water and saccharides were put into a four-necked flask using the ingredient content ratios shown in Table 3 below, and the temperature was raised to 75 ° C. Subsequently, a diluted ammonium persulfate diluted solution (diluted concentration: 20%) and a mixed solution of acrylic acid and / or methacrylic acid were separated and simultaneously dropped for 3 hours. Subsequently, after a holding reaction for 90 minutes, a portion of diluted ammonium persulfate (diluted concentration: 20%) was added dropwise to the reaction mixture for 5 minutes. After 1 hour, no further change in viscosity was observed. Then, a neutralizing agent (ammonia water) was added at 45 to 50 캜 for 1 hour while paying attention to heat generation, pH was adjusted to 4 to 5, and neutralization was completed. Then, the physical properties thereof were evaluated, and the results are shown in Table 3 below.
Production Examples 19 to 22 (Cold Blending Step)
The components were mixed at the component ratio shown in Table 3 and stirred well at room temperature. Then, the physical properties thereof were evaluated, and the results are shown in Table 3 below.
- Physical properties Result symbol: ◎> ○> △> × in order.
- Coating strength: Check the condition after applying the glass plate coating film (thickness: 120 ㎛, curing condition: 200 ˚C for 10 minutes).
- Water resistance: After dipping each cured film in a constant temperature bath (25˚C), check the film condition.
- Curing time: 150˚C, measure the time to harden by dropping each manufactured liquid to the same gram on a cure plate.
[Table 3]
On the other hand, the components of the acrylic acid polymer used in Production Examples 19, 20, 21 and 22 are as follows.
[Table 4]
As can be seen from the above Table 3, the coating films prepared in the hot blending modifying process (Production Examples 16 to 18) had relatively higher strength and water resistance than the simple blended cold blending (Production Examples 19 to 22) at room temperature I could confirm.
As described above, the binder for eco-friendly thermal insulation according to the present invention is prepared by adding the saccharide to the acrylic acid polymer in advance before manufacturing the acrylic acid polymer, thereby improving the water resistance of the saccharide and the acrylic acid polymer. It can have fast curing rate at low temperature. This can exert an excellent effect on the water resistance and curing speed as compared with the binder prepared by simple mixing of the crosslinking agent of the saccharide with the acidic component with the catalyst.
As described above, the saccharide is produced by adding the saccharide in the production of the acrylic acid polymer in the same manner as in the group consisting of glucose, high fructose corn syrup, isomerized sugar, maltose, malt syrup, cyclodextrin, isomaltooligosaccharide, starch syrup and polyglycitol syrup When one or more species are selected, more excellent effects can be exhibited. More preferably, the saccharide may be selected from the group consisting of isomaltooligosaccharide, polyglycitol syrup, starch syrup, and high fructose corn syrup.
Further, in the case of an acrylic acid polymer produced together with a saccharide, it is possible to exert more excellent effects when it contains methacrylic acid and acrylic acid at the same time.
From another point of view, the present invention corresponds to a binder composition for environmentally friendly insulation comprising a reactant of a saccharide and an acrylic acid polymer. Alternatively, the present invention corresponds to a binder composition for an environment-friendly insulator comprising a reaction product of a saccharide and an acrylic acid polymer reacted with a saccharide and an acrylic acid polymer without a catalyst.
Examples 1 to 7
The acrylic polymers prepared in Preparation Examples 16 to 22 were mixed at the component ratio shown in Table 4 and sufficiently stirred at room temperature. After the mixture was sufficiently mixed, tests were performed on the glass wool, and the results are shown in Table 4 below.
- Physical properties Result symbol: ◎> ○> △> × in order.
- Adhesion (glass wool application): After dipping the glass wool cut into a certain size into the manufactured solution, remove it again and check the state after hardening at high temperature.
[Table 5]
As can be seen from Table 5, when the glass wool of the same size was taken out from each prepared liquid (Examples 1 to 7) by dipping and then the glass wool after curing at a high temperature was compared, the interlayer adhesion of the glass wool was evaluated by hot blending 3) was superior to the cold blending (Examples 4 to 7).
In addition, Production Examples 16 to 18 prepared through a hot blending modifying process without adding sodium hypophosphite as a crosslinking catalyst can be confirmed to have better physical properties than Production Examples 19 to 21 prepared through a cold blending modifying process. Production Example 22 produced through a cold blending process without the best properties was the worst.
Examples 4 to 7, which are comparative examples which do not have the technical features of the present invention, are produced by mixing starch or saccharide with a cross-linking agent and a cross-linking catalyst at room temperature, and then cross- The inventors of the present invention have found that when acrylic acid polymer is synthesized, starch or sugar is initially injected and crosslinking reaction of starch or sugar and acrylic acid polymer is carried out in advance, and the curing rate is remarkably improved. Also, since no crosslinking catalyst is used, And the property deterioration was improved. It is possible to lower the temperature of the sintering furnace during the production of the glass wool due to the rapid curing speed, which is economically effective.
As described above, an optimal embodiment has been disclosed in the drawings and specification. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention, The scope should be determined by the technical idea of the appended claims.
Claims (23)
Acrylic acid polymer,
The acrylic acid polymer may be selected from the group consisting of methacrylic acid; Acrylic acid; corrector; And one or more chemical substances selected from the group consisting of potassium persulfate, sodium hydrosulfite, ammonium persulfate, and sodium bisulfate. ≪ / RTI >
Wherein the saccharide is mixed with an acrylic acid polymer and reacted with an acrylic acid polymer during production of the acrylic acid polymer.
The saccharide is contained in an amount of 20 to 60% by weight based on the total weight of the binder composition,
The acrylic acid polymer is contained in an amount of 6 to 36% by weight based on the total weight of the binder composition,
The binder composition for environmentally friendly insulation further comprises water and an additive,
Wherein the total weight of the saccharide, the acrylic acid polymer, the water, and the additive is 100% by weight.
Wherein the acrylic acid polymer is 10 to 80 parts by weight based on 100 parts by weight of the saccharide.
Wherein the saccharide reacted with the starch is selected from the group consisting of glucose, high fructose corn syrup, isomerized sugar, maltose, maltose syrup, cyclodextrin, isomaltooligosaccharide, starch syrup, and polyglycitol syrup. Binder composition for environmentally friendly insulation.
Wherein the weight ratio of acrylic acid and methacrylic acid is 1: 0.66 to 1: 4.
Wherein the neutralizing agent is at least one selected from the group consisting of triethylamine, ammonium hydroxide, diethanolamine, triethanolamine, KOH, NaOH, and aqueous ammonia.
Wherein the saccharide is at least one selected from the group consisting of isomaltooligosaccharide, polyglycitol syrup, starch syrup, and high fructose corn syrup.
An acidic solution is added to the mixed solution of the saccharide and water; And a diluting liquid of at least one chemical substance selected from the group consisting of potassium persulfate, sodium hydrosulfite, ammonium persulfate, and sodium bisulfate, 1 dropping stage;
A reaction maintaining step of maintaining the reaction after the first dropping step;
Which dilutes a diluent of one or more chemicals selected from the group consisting of potassium persulfate, sodium hydrosulfite, ammonium persulfate, and sodium bisulfate, Loading stage;
A cooling step for cooling; And
And a step of introducing a neutralizing agent into which the neutralizing agent is introduced.
Wherein the acidic solution comprises acrylic acid and methacrylic acid,
Wherein the weight ratio of acrylic acid and methacrylic acid is 1: 0.66 to 1: 4.
Wherein the saccharide is at least one selected from the group consisting of glucose, high fructose corn syrup, isomerized sugar, maltose, malt syrup, cyclodextrin, isomaltooligosaccharide, starch syrup, and polyglycitol syrup. Gt;
Wherein the saccharide and water are mixed in the heating step, and then heated to 70 to 80 캜.
In the first dropping step, a mixture of methacrylic acid and acrylic acid and a mixture of potassium persulfate, sodium hydrosulfite, ammonium persulfate, and sodium bisulfate Wherein a diluted solution of one or more chemical substances selected from the group consisting of the diluted solution of the chemical selected in the step
And maintaining the reaction in the reaction maintaining step for 1 hour to 2 hours.
Wherein the second dropping step is performed for one or more chemical selected from the group consisting of Potassium Persulfate, Sodium Hydrosulfite, Ammonium Persulfate, and sodium bisulfate for 5 to 10 minutes. Wherein a diluent of the substance is dropped.
Wherein the neutralizing agent is added to the neutralizing agent at 45 to 50 ° C so that the pH of the solution becomes 4 to 5 as a whole.
An acidic solution is added to the mixed solution of the saccharide and water; And a diluting liquid of at least one chemical substance selected from the group consisting of potassium persulfate, sodium hydrosulfite, ammonium persulfate, and sodium bisulfate, 1 dropping stage;
A reaction maintaining step of maintaining the reaction after the first dropping step;
Which dilutes a diluent of one or more chemicals selected from the group consisting of potassium persulfate, sodium hydrosulfite, ammonium persulfate, and sodium bisulfate, Loading stage;
A cooling step for cooling; And
A binder for eco-friendly insulating materials, which is produced by a neutralizing agent input step in which a neutralizing agent is introduced.
Wherein the acidic solution comprises acrylic acid and methacrylic acid,
Wherein the weight ratio of acrylic acid to methacrylic acid is 1: 0.66 to 1: 4.
Wherein the saccharide is at least one selected from the group consisting of glucose, high fructose corn syrup, isomerized sugar, maltose, maltose syrup, cyclodextrin, isomaltooligosaccharide, starch syrup, and polyglycitol syrup.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150077144A KR101595275B1 (en) | 2015-06-01 | 2015-06-01 | Binder Composition for Environmental-friendly Insulating Material and Method for Preparing the Same |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150077144A KR101595275B1 (en) | 2015-06-01 | 2015-06-01 | Binder Composition for Environmental-friendly Insulating Material and Method for Preparing the Same |
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| KR101595275B1 true KR101595275B1 (en) | 2016-02-18 |
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| KR1020150077144A KR101595275B1 (en) | 2015-06-01 | 2015-06-01 | Binder Composition for Environmental-friendly Insulating Material and Method for Preparing the Same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018221117A1 (en) * | 2017-05-29 | 2018-12-06 | Henkel Japan Ltd. | Aqueous bonding composition |
| JP2019218559A (en) * | 2019-08-28 | 2019-12-26 | ヘンケルジャパン株式会社 | Aqueous adhesive composition |
| KR20230033130A (en) | 2021-08-27 | 2023-03-08 | 벽산페인트 주식회사 | Binder Composition for Environmental-friendly Insulating Material and Method for Preparing the Same |
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| KR20100137587A (en) * | 2008-06-04 | 2010-12-30 | 더 프록터 앤드 갬블 캄파니 | Denture adhesive compositions and methods |
| JP2012214687A (en) * | 2011-03-31 | 2012-11-08 | Panasonic Corp | Bonding composition and board |
| KR20150048166A (en) * | 2012-08-23 | 2015-05-06 | 헨켈 아게 운트 코. 카게아아 | Two-component (2k) lamination adhesive |
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| KR20100137587A (en) * | 2008-06-04 | 2010-12-30 | 더 프록터 앤드 갬블 캄파니 | Denture adhesive compositions and methods |
| JP2012214687A (en) * | 2011-03-31 | 2012-11-08 | Panasonic Corp | Bonding composition and board |
| KR20150048166A (en) * | 2012-08-23 | 2015-05-06 | 헨켈 아게 운트 코. 카게아아 | Two-component (2k) lamination adhesive |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018221117A1 (en) * | 2017-05-29 | 2018-12-06 | Henkel Japan Ltd. | Aqueous bonding composition |
| JP2018199793A (en) * | 2017-05-29 | 2018-12-20 | ヘンケルジャパン株式会社 | Aqueous adhesive composition |
| KR20200012940A (en) * | 2017-05-29 | 2020-02-05 | 헨켈 아게 운트 코. 카게아아 | Waterborne Adhesive Composition |
| RU2766982C2 (en) * | 2017-05-29 | 2022-03-16 | Хенкель Аг Унд Ко. Кгаа | Aqueous binder composition |
| US11485883B2 (en) | 2017-05-29 | 2022-11-01 | Henkel Ag & Co., Kgaa | Aqueous bonding composition |
| KR102649058B1 (en) * | 2017-05-29 | 2024-03-20 | 헨켈 아게 운트 코. 카게아아 | Water-based adhesive composition |
| JP2019218559A (en) * | 2019-08-28 | 2019-12-26 | ヘンケルジャパン株式会社 | Aqueous adhesive composition |
| JP7021157B2 (en) | 2019-08-28 | 2022-02-16 | ヘンケルジャパン株式会社 | Method for manufacturing water-based adhesive composition |
| KR20230033130A (en) | 2021-08-27 | 2023-03-08 | 벽산페인트 주식회사 | Binder Composition for Environmental-friendly Insulating Material and Method for Preparing the Same |
| KR102561168B1 (en) * | 2021-08-27 | 2023-07-31 | 벽산페인트 주식회사 | Binder Composition for Environmental-friendly Insulating Material and Method for Preparing the Same |
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