WO2015190788A1 - 공정수의 재활용이 가능한 수성 접착제 조성물 및 이를 사용하여 섬유상 재료를 결속하는 방법 - Google Patents
공정수의 재활용이 가능한 수성 접착제 조성물 및 이를 사용하여 섬유상 재료를 결속하는 방법 Download PDFInfo
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- WO2015190788A1 WO2015190788A1 PCT/KR2015/005740 KR2015005740W WO2015190788A1 WO 2015190788 A1 WO2015190788 A1 WO 2015190788A1 KR 2015005740 W KR2015005740 W KR 2015005740W WO 2015190788 A1 WO2015190788 A1 WO 2015190788A1
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- adhesive composition
- fibrous material
- formaldehyde
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- water
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/26—Macromolecular compounds or prepolymers
- C03C25/32—Macromolecular compounds or prepolymers obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
Definitions
- the present invention relates to an aqueous adhesive composition capable of recycling process water and a method for binding fibrous materials using the same, and more particularly, one or more reducing sugars, one or more amino acids, and microbial minimum inhibitory concentration (MIC).
- Aqueous adhesive composition comprising at least one aldehyde compound having a) of 1% or less, and a method of binding a fibrous material using the same.
- the adhesive composition of the present invention is inexpensive compared to the conventional phenol formaldehyde resin (PFR) and can express the same or more physical properties, and the final product contains little or no toxic substances such as formaldehyde or phenol, and is processed It can reduce the odor problem, which is a weak point of existing PFR resin, and it can reduce the mechanical properties and dust rate of processed products such as water resistance, tensile strength, hardness, etc., compared to existing eco-friendly resins that do not contain toxic substances such as formaldehyde or phenol. Not only can it be remarkably improved, but also the adhesive solution has antiseptic properties, so that the process water generated during the manufacturing process of binding the fibrous material can be recycled without decay due to microorganisms.
- PFR phenol formaldehyde resin
- Figure 1 schematically shows a manufacturing process such as glass wool and rock wool to fiberize the mineral and processed it into a product.
- the mineral raw material mixture is melted at a high temperature, fiberized and collected in a state where an adhesive is applied.
- about 15-35% of the adhesive solution flows to the side or bottom of the equipment and is washed with washing water.
- other manufacturing facilities may be contaminated with mineral fibers, which are removed in the same way using washing water.
- the washing water containing the adhesive component thus generated during the manufacturing process is referred to as "process water”.
- the process water removes the fibrous material contained therein by a filter, collects it in a sump and mixes it with an adhesive solution, or uses a physical, chemical or biological method to decompose the contained organic matter to an uncorrosive concentration. In the former case, there is an advantage of reusing the lost adhesive component, but there is a problem that must be managed to prevent corruption.
- PFR has been mainly used as an adhesive for bonding fibrous materials.
- the process water generated contains toxic substances such as phenol and formaldehyde, and thus can be recycled without corruption.
- PFR releases formaldehyde, a carcinogen during the manufacturing process, even after construction, and phenol is also a toxic substance, which can cause adverse effects due to the continuous leakage of unreacted substances into the external environment.
- the present invention is to solve the problems of the prior art as described above, in the adhesion of fibrous materials such as glass wool and rock wool, it is possible to express inexpensive and equal or more physical properties compared to the conventional phenol formaldehyde resin, formaldehyde It does not contain or release toxic substances such as phenol, and rarely emit them, and it can reduce the odor problem, which is a weak point of the existing PFR during processing, and can recycle the process water generated during the process of binding the fibrous material without microorganism decay. It is an object of the present invention to provide an aqueous adhesive composition which can economically improve the mechanical properties such as water resistance, tensile strength, hardness, and dust rate of a processed product, and a method of binding fibrous materials using the same.
- the present invention to achieve the above technical problem, at least one reducing sugar; One or more amino acids; And at least one aldehyde compound having a minimum microbial minimum inhibitory concentration (MIC) of 1% or less. It provides an aqueous thermosetting binder composition comprising a.
- the step of spraying the aqueous thermosetting binder composition to the fibrous material; And thermosetting the sprayed binder composition is aqueous thermosetting binder composition to the fibrous material.
- the fibrous material product bound using the binder composition of the present invention is inexpensive compared to the conventional phenol formaldehyde resin and can express the same or more physical properties, and contains little or no toxic substances such as formaldehyde or phenol. It can reduce the problem of odor, which is a weak point of the existing PFR during processing.
- the adhesive solution itself has antiseptic performance, the process water generated during the process of binding the fibrous material using the adhesive component can be recycled without decay due to microorganisms and is an economical and processed product. It can significantly improve the mechanical properties and dust rate of the water resistance, tensile strength, hardness, and the like.
- Figure 1 schematically shows a manufacturing process for fiberizing the mineral and processing it into a product.
- French chemist Louis-Camille Maillard described the non-enzymatic browning reaction in foods at elevated temperatures as a reaction of sugars and amino acids in foods (also referred to as the “mailard reaction”). Action of Amino Acids on Sugards.Formation of Melanoidins in a Methodical Way ”, Compt . Rend. , 154: 66).
- American chemist Hodge described the mechanism of the reaction in detail in the paper (“Chemistry of Browing Reactions in Model Systems”, J. Agric . Food Chem . , 1953, 1, 928-943). ).
- an aldose-type sugar having a reactive aldehyde group reacts with an amino acid at high temperature to form an intermediate of N-substituted glucosylamine, and the reaction proceeds in various ways by Amadori rearrangement to decompose various low molecular weight volatile organics. It was explained that the brown nitrogen-containing polymer called melanoidine and its copolymer were formed. In 1966, Lloyd W. Rooney and Ali Salem, in their Ph.D. dissertation, reported that high-temperature reactions of reducing sugars and aqueous amino acids (12 hours at 95 ° C in aqueous solution and 30 minutes at 268 ° C in starch).
- the amount of low molecular weight organic compounds (formaldehyde, acetaldehyde, acetone, isobutylaldehyde, isovalaldehyde), which were determined by color change and decomposition, was measured using glucose or glucose. It has been reported that reducing sugars such as xylose actively react with amino acids such as methionine, tryptophan, phenylalanine, lysine, histidine, glycine, alanine, valine, leucine and isoleucine (“Studies of the Carbonyl Compounds Produced by Sugar-Amino Acid Reactions. I Model Systems, Ph.D Thesis, the graduate Faculty of Kansas State University, 1966, No. 559, 539-550.
- Maillard reaction has been widely applied and well known in the food field to enhance the aroma and taste of food.
- the mailard reaction has not been correctly interpreted in the adhesive field.
- melanoidine formed by the high temperature reaction of sugars and amino acids can be easily obtained by heating molasses, a raw material used as an organic binder, to high temperature.
- Molasses is a by-product of refining sugars, and is a mixture containing about 50% by weight of sugars including reducing sugars and about 5-10% of compounds (proteins, amino acids, oligomers) containing nitrogen elements.
- the reducing sugars in the constituents react with the protein / amino acids to form melanoidines.
- molasses-containing compositions can be prepared by applying vacuum to a composition containing molasses at a high temperature of 105 to 155 ° C. to remove condensates.
- United States Patent No. 5,416,139 uses molasses as an adhesive for the manufacture of building structural materials. It describes that molten composite material including melanoidine can be prepared by injecting a composition containing molasses at a high temperature of 150 ⁇ 180 °C.
- Korean Patent Application No. 1987-0005710 uses a mixture of phenol formaldehyde resin (PFR) or amino formaldehyde resin with sugars (molasses, dextrin, glucose, fructose, sucrose, etc.) and lignosulfonate. It is described that the formaldehyde emission of amino and phenol resins can be lowered.
- sugars molecular weight, weight, weight, weight, etc.
- lignosulfonate lignosulfonate
- Korean Patent Laid-Open Publication No. 10-2008-0049012 describes that an ammonium salt of polycarboxylic acid and a reducing sugar can be applied as an adhesive by performing a mailard reaction.
- U.S. Patent No. 4,524,164 describes the composition and application of thermosetting adhesives for lignocellulosic materials such as sawdust, wherein sugars, including reducing sugars (lactose, maltose, glucose, galactose, sucrose, amylose, amylopectin, dextrins) , Molasses, whey) and urea and ammonium salts are reacted for 30 minutes to 18 hours in an aqueous solution in the presence of a metal catalyst at 50 to 200 ° C., and then mixed with organic anhydrous and lignocellulosic materials such as sawdust at high temperature.
- Reducing sugars, urea, ammonium salts and organic anhydrides can form melanoidine at high temperatures.
- French Patent No. 2,924,719 describes the use of an aqueous adhesive composition consisting of monosaccharides, polysaccharides (dextrins or molasses), polycarboxylic acids and catalysts to produce rock wool or glass wool as a thermal insulation product, the adhesive composition also having a high temperature.
- Melanoidine can be formed to bind the fibers.
- melanoidine by the mailard reaction at a high temperature of reducing sugars and amino acids known in the art is used as an adhesive.
- the present invention provides a microbial minimum inhibitory concentration (MIC) for the purpose of imparting antiseptic force to the process water containing the adhesive component, and improving the performance of the melanoidine adhesive, which occurs in the manufacturing process of the fibrous aggregate.
- MIC microbial minimum inhibitory concentration
- An aldehyde compound having an amount of 1% or less is used for the adhesive composition.
- an aldehyde compound having a microbial minimum inhibitory concentration (MIC) of 1% or less may be selected through the following method.
- Contaminated strains isolated from the decayed samples were used as test strains to inoculate each aldehyde diluent to be screened, followed by culturing in a 35 ° C. incubator to observe the growth and killing of microorganisms to select aldehyde compounds with a MIC of 1% or less.
- An aldehyde compound having a MIC of 1% or less used in the present invention acts on the cell wall or cytoplasm of microorganisms, disrupts their role, or chemically reacts with a characteristic such as a thiol, amino group, or mercapto group to destroy the microorganism. Proliferation can be inhibited or killed.
- the aldehyde compound may form a three-dimensionally crosslinked polymer network having excellent physical properties during high temperature curing by combining with an amino group of an amino acid used in the present invention in addition to providing an antiseptic force to an aqueous adhesive composition.
- the aqueous adhesive composition of the present invention may contain toxic aldehyde compounds (eg, formaldehyde) prior to application to fiberized minerals and cured to high temperatures in an oven, but the final insulation product obtained after high temperature curing may be unreacted or cured. It does not contain substantially any toxic aldehyde compound which is generated by decomposition during the reaction.
- toxic aldehyde compounds eg, formaldehyde
- the heat insulating material produced using the water-based adhesive composition of the present invention the emission amount of formaldehyde measured by the small chamber method (KS M ISO 16000 and KSM 1998) is only 0 ⁇ 0.005mg / m 3 ⁇ hr range Thus, zero to almost zero numerical values are shown.
- the aldehyde compound used in the present invention unlike other preservatives, has the advantage of causing corrosion of metals or not leaving harmful compounds such as halogen elements or phenols in the product.
- the adhesive composition of the present invention contains a reducing sugar having 3 or more carbon atoms.
- the reducing sugar refers to an aldose or ketose saccharide which has an aldehyde or may have an aldehyde structure by isomerization, and specifically, glucose, maltose, fructose, galactose, lactose, cellobiose and genthiobiose.
- Monosaccharides and disaccharides such as, lutinose, glyceraldehyde and the like can be used alone or in combination, but is not limited thereto.
- the amount of the reducing sugar contained in the adhesive composition of the present invention is preferably 40 to 95 parts by weight, more preferably 60 to 90 parts by weight, and even more preferably 70 based on 100 parts by weight of the total of the reducing sugar and the amino acid. ⁇ 90 parts by weight. If the reducing sugar content in the adhesive composition is less than 40 parts by weight based on 100 parts by weight of the total amount of reducing sugars and amino acids, the hardness of the cured product formed from the adhesive composition may be lowered, and if it exceeds 95 parts by weight, the stability of the composition and the degree of curing of the cured product may be reduced. have.
- the adhesive composition of the present invention comprises one or more amino acids.
- an amino acid is a compound having at least one amino group and one carboxyl group in one molecule, specifically, glycine, alanine, valine, leucine, isoleucine, threonine, serine, cysteine, methionine, aspartic acid, asparagine, glutamic acid, Diyotyrosine, lysine, arginine, histidine, phenylalanine, tyrosine, tryptophan, proline, oxyproline, glutamine, etc. may be used alone or in combination, but is not limited thereto.
- the amount of the amino acid contained in the adhesive composition of the present invention is preferably 5 to 60 parts by weight, more preferably 10 to 40 parts by weight, even more preferably 10 based on 100 parts by weight of the total of reducing sugar and amino acids. ⁇ 30 parts by weight.
- the amino acid content in the adhesive composition is less than 5 parts by weight based on 100 parts by weight of the reducing sugar and amino acids in total, the stability of the composition and the degree of curing of the cured product may be reduced, and when the amount of the amino acid exceeds 60 parts by weight, the hardness of the cured product formed from the adhesive composition may be lowered. have.
- part or all of the amino group (e.g., 20 to 100 equivalent%, preferably 30 to 100 equivalent%) of the amino group contained in the amino acid is acid Neutralized amino acids are preferably used.
- the acid used for the neutralization of amino acids include sulfuric acid, phosphoric acid, carboxylic acid, organic sulfonic acid, and the like, and forms of acid compounds in the form of monomolecules, dimers, trimers, oligomers, or polymers can be used without limitation. . In some cases, it may be used in the form neutralized with an amine compound or ammonia.
- a high boiling point acid compound having a boiling point of 300 ° C. or more may be used under normal temperature and normal pressure (ie, 25 ° C. and 1 atmosphere).
- the adhesive composition of the present invention comprises at least one aldehyde compound having a MIC of 1% or less.
- the aldehyde compound having a MIC of 1% or less may be used alone or in combination, but not limited thereto, glutaaldehyde, formaldehyde, glyoxal, and the like.
- the amount of the aldehyde compound having an MIC of 1% or less contained in the adhesive composition of the present invention is 0.01 to 10 parts by weight, preferably 0.1 to 5 parts by weight based on 100 parts by weight of the total of reducing sugar and amino acid.
- the content of the aldehyde compound in the adhesive composition is less than 0.01 part by weight based on 100 parts by weight of the reducing sugar and the amino acid in total, the number of processes including the adhesive component caused by the lack of antiseptic power may easily be deteriorated by decay and cause odor.
- the weight part is exceeded, overcuring of the cured product occurs and the coating film is easily broken.
- Reducing sugars and amino acids which are the main components of the present invention, are obtained through hydrolysis or fermentation of starch, molasses, etc. collected from plants, so that there is no need to worry about depletion of resources, thereby minimizing the amount of carbon dioxide generated during manufacturing and disposal.
- the product contains almost no toxic substances such as phenol and formaldehyde.
- the formaldehyde has a zero to almost zero value in the range of 0 to 0.005 mg / m 3 ⁇ hr when the emission amount is measured by a small chamber method. Means).
- the adhesive composition of the present invention may further include a high boiling point acid compound having a boiling point of 300 ° C. or higher (eg, 300 ° C. to 500 ° C.) under normal temperature and normal pressure (ie, 25 ° C., 1 atmosphere).
- a high boiling point acid compound having a boiling point of 300 ° C. or higher (eg, 300 ° C. to 500 ° C.) under normal temperature and normal pressure (ie, 25 ° C., 1 atmosphere).
- These high boiling acid compounds can be used to increase the solubility of the amino acid in water and to increase the curing reaction rate in the high temperature baking process after spraying the fibrous aggregates, and to prevent volatilization during the high temperature curing reaction at room temperature and atmospheric pressure conditions. It is preferable that boiling point is 300 degreeC or more.
- the high boiling acid compound examples include sulfuric acid, phosphoric acid, carboxylic acid, organic sulfonic acid, and the like, and examples thereof include, without limitation, acid compounds in the form of monomolecules, dimers, trimers, oligomers, or polymers. In some cases, it may be used in the form neutralized with an amine compound or ammonia.
- the amount thereof is preferably 0.1 to 10 parts by weight, more preferably 0.1 to 5 parts by weight, even more based on 100 parts by weight of the total of reducing sugar and amino acid. Preferably it may be 0.1 to 3 parts by weight.
- the content of the high boiling acid compound in the adhesive composition is less than 0.1 part by weight based on 100 parts by weight of the reducing sugar and the amino acid in total, uncuring may occur, resulting in poor physical properties of the cured product. have.
- the adhesive composition of the present invention may optionally further include one or more additives as necessary within the scope capable of achieving the object of the present invention.
- Additional useful additives include water repellents to increase the water resistance of the fibrous aggregates, rust preventives to prevent corrosion of equipment, anti-vibration oils to reduce the dust incidence of products, buffers to adjust pH, coupling agents to improve adhesion, and hardened products. Hardeners for improving mechanical properties, and the like, but are not limited thereto, and additives commonly used in the art may be used. There is no particular restriction on the amount of such additional additives, for example, each additive may be used in the range of 0.1 to 10 parts by weight based on 100 parts by weight of the reducing sugar and the amino acid, but is not limited thereto.
- a preservative may be additionally added to prevent corruption of the process water including several percent of the organic adhesive component generated during the manufacturing process.
- Such preservatives can be added to the mixing tank during the manufacture of the binder, or can be added to any facility, such as process water collection tank, transfer piping, water treatment equipment, and can be used regardless of the type used in the industry.
- the addition amount of the preservative may be used in the range of preferably 500 to 5,000 ppm, more preferably 1,000 to 3,000 ppm with respect to the weight of the generated process water.
- the adhesive mixing tank may be heated at a normal pressure of 55-100 ° C. for a predetermined time or more. Microbial killing and microbial concentration can be easily identified using diagnostic kits and microbial culture facilities commonly used in the industry.
- the adhesive composition of the present invention using water (industrial water, ground water, process water, etc.) as a diluent for evenly applying the above-described components to the fibrous material, the content of the solid content of 2 to 50% by weight, preferably May be adjusted to 5 to 20% by weight (ie, the content of water is 50 to 98% by weight, preferably 80 to 95% by weight, based on 100% by weight of the total composition). If the amount of water as a diluent is excessively large, energy for volatilizing the water is excessively excessive. On the contrary, excessively small amount of water is not preferable because the adhesive composition is not well applied on the fibrous material, and the adhesive content in the resulting product is unnecessarily high.
- water industrial water, ground water, process water, etc.
- the adhesive composition of the present invention is heat-treated at a temperature of 120 ° C. or higher, for example, a Maillard reaction occurring in the Amadori intermediate between the aldehyde group of the reducing sugar and the amine group of the amino acid, the self-amide reaction of the carboxylic acid group and the amine group of the amino acid, and the hydroxyl group of the reducing sugar And various curing reactions such as ester reaction of carboxylic acid groups with amino acids and coordination bonds of metal ions with reducing sugars or nitrogen, oxygen, sulfur, and halogen atoms present in amino acid compounds, thereby forming water-insoluble polymers. It can be used as an adhesive having excellent physical properties such as water resistance and the like.
- the step of spraying an aqueous thermosetting adhesive composition of the present invention into a fibrous material; And thermally curing the sprayed adhesive composition, and a fibrous material bound using the aqueous thermosetting adhesive composition of the present invention is provided.
- the aqueous thermosetting adhesive composition is sprayed onto the fibrous material in an uncured aqueous solution or an aqueous dispersion.
- the fibrous material include, but are not limited to, short fiber aggregates such as inorganic fibers (for example, rock wool, glass wool, ceramic fibers, etc.) or fibers obtained from natural and synthetic resins.
- the adhesive composition is thermally cured by heat treating the fibrous material aggregate sprayed with the adhesive composition.
- the heat treatment temperature for hardening is suitably 120 degreeC or more (for example, 120-300 degreeC, Preferably 150-250 degreeC). If the heat treatment temperature is too low, uncuring occurs, on the contrary, if too high, overcuring occurs, dust generation may be a problem.
- the cured adhesive content in the bound fibrous material produced in accordance with the present invention may be, for example, from 2 to 15% by weight, based on a total of 100 parts by weight of the bound fibrous material.
- An adhesive composition was prepared in the same manner as in Example 1, except that 1.5 kg of glyoxal solution (solid content: 40 wt%) was used instead of formaldehyde. Solid content of the prepared adhesive composition was about 9% by weight.
- An adhesive composition was prepared in the same manner as in Example 1, except that 1.5 kg of glutaraldehyde (solid content: 50 wt%) was used instead of formaldehyde. Solid content of the prepared adhesive composition was about 9% by weight.
- An adhesive composition was prepared by adding 404 kg of a phenol / formaldehyde resin (manufactured by KCC), 3800 kg of distilled water, 2 kg of a water repellent (SI1460Z-KCC), and 3 kg of anti-vibration oil (Garo217S) to a mixing vessel and stirring for 30 minutes with a stirrer. Solid content of the prepared adhesive composition was about 9% by weight.
- a glass surface sample of 10 m (width) x 1 m (length) x 0.05 m (thickness) was prepared, rolled up in a roll shape, stored at room temperature for 8 weeks, and then released to its original state to check the thickness change.
- the experimental results are shown in Table 1 below.
- Mold resistance was measured by observing the mold growth rate in the specimen for one month by the ASTM G21-09 test method, the results are shown in Table 1 below.
- samples were prepared by diluting each aqueous adhesive with equipment wash water to adjust the solids content to 2-3 wt%.
- a challenge test for mixed bacteria was performed to determine the preservative strength of each sample of process water.
- the strains used were Gram-positive bacteria (Bacillus subtilia ATCC 6633), Staphylococcus aureus ATCC 6538, Escherichia coli (Escherichia coli ATCC 9637) and Pseudomonas aeruginosa ATCC 9027.
- Nutrient agar Nutrient Agar
- Nutrient Agar has a bacteria concentration mix of physiological saline after the inoculation of the bacterium species and 4 cultured for 24 hours at 33 ⁇ 37 °C about 1x10 6-7 cfu / g (cfu: colony forming unit) To prepare a mixed strain solution.
- 1 g of the mixed strain was inoculated into 100 g of the process water sample of each Example and Comparative Example. After that, 1 g of each inoculated sample was taken and diluted in 9 ml of phosphate buffered saline (PBS buffer) solution to make a dilution series. 100 ⁇ l of the dilutions were injected into the agar medium and rubbed with a sterile rod to spread well. After the inverted medium and incubated for 48 hours at 33 ⁇ 37 °C was counted.
- PBS buffer phosphate buffered saline
- Determination was determined by a four event of a serious concentration of the case where bacteria are killed 0, 1x10 6- 7 cfu / g , by dividing the five levels of the interval 0 ⁇ 4 (0: No bacterial recovery, 1: Trace of contamination, 2: Light contamination, 3: Moderate contamination, 4: Heavy contamination).
- the bacteria should be reduced by at least 99.9% within 1 week of inoculation and should not grow during the test period. The result was put together in the process water anti-corrosion item of Table 1.
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Abstract
Description
Claims (9)
- 하나 이상의 환원당;하나 이상의 아미노산; 및하나 이상의, 미생물 최소억제농도(Minimum Inhibitory Concentration, MIC)가 1% 이하인 알데히드 화합물;을 포함하는, 수성 열경화성 접착제 조성물.
- 제1항에 있어서, 환원당이 포도당, 맥아당, 과당, 유당, 셀로비오스, 겐티오비오스, 루티노오스 및 이들의 조합으로부터 선택되는 것을 특징으로 하는 수성 열경화성 접착제 조성물.
- 제1항에 있어서, 아미노산이 글리신, 알라닌, 발린, 류신, 이소류신, 트레오닌, 세린, 시스테인, 메티오닌, 아스파르트산, 아스파라긴, 글루탐산, 디요드티로신, 라이신, 아르기닌, 히스티딘, 페닐알라닌, 티로신, 트립토판, 프롤린, 옥시프롤린, 글루타민 및 이들의 조합으로부터 선택되는 것을 특징으로 하는 수성 열경화성 접착제 조성물.
- 제1항에 있어서, 아미노산의 아미노기의 일부 또는 전부가 산으로 중화된 형태인 것을 특징으로 하는 수성 열경화성 접착제 조성물.
- 제1항에 있어서, MIC가 1% 이하인 알데히드 화합물이 글루타알데히드, 포름알데히드, 글리옥살 및 이들의 조합으로부터 선택되는 것을 특징으로 하는 수성 열경화성 접착제 조성물.
- 제1항에 있어서, 상온 및 상압 조건에서 끓는점이 300℃ 이상인 고비점 산 화합물을 추가로 포함하는 것을 특징으로 하는 수성 열경화성 접착제 조성물.
- 제1항 내지 제6항 중 어느 한 항의 수성 열경화성 접착제 조성물을 섬유상 재료에 분무하는 단계; 및분무된 접착제 조성물을 열경화하는 단계;를 포함하는, 섬유상 재료의 결속 방법.
- 제1항 내지 제7항 중 어느 한 항의 수성 열경화성 접착제 조성물을 사용하여 결속된 섬유상 재료.
- 제8항에 있어서, 포름알데히드의 방출량이 0~0.005mg/m3·hr인 것을 특징으로 하는, 결속된 섬유상 재료.
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EP3156467A1 (en) | 2017-04-19 |
EP3156467A4 (en) | 2018-01-24 |
KR20150142147A (ko) | 2015-12-22 |
KR101871542B1 (ko) | 2018-06-27 |
CN106661403A (zh) | 2017-05-10 |
EP3156467B1 (en) | 2022-09-21 |
CN106661403B (zh) | 2019-02-12 |
JP2017519124A (ja) | 2017-07-13 |
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