WO2014003369A1 - 폴리알킬렌 카보네이트계 수지 필름 및 이의 제조 방법 - Google Patents
폴리알킬렌 카보네이트계 수지 필름 및 이의 제조 방법 Download PDFInfo
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- WO2014003369A1 WO2014003369A1 PCT/KR2013/005503 KR2013005503W WO2014003369A1 WO 2014003369 A1 WO2014003369 A1 WO 2014003369A1 KR 2013005503 W KR2013005503 W KR 2013005503W WO 2014003369 A1 WO2014003369 A1 WO 2014003369A1
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- polyalkylene carbonate
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/45—Anti-settling agents
-
- 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/02—Aliphatic polycarbonates
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/07—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions
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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
- C08K5/01—Hydrocarbons
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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
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/41—Compounds containing sulfur bound to oxygen
- C08K5/42—Sulfonic acids; Derivatives thereof
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D169/00—Coating compositions based on polycarbonates; Coating compositions based on derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
Definitions
- the present invention relates to a polyalkylene carbonate resin film and a manufacturing method thereof.
- Disposable resin molded articles have been widely used as disposable containers such as disposable gloves, packaging films, disposable cups and disposable plates, rubber molded articles for construction materials and automotive interior materials.
- Disposable gloves for example, are difficult to recycle after use. They are mainly used in industrial fields such as medicine or chemical / chemical fields. Recently, they are widely used in various fields related to hygiene or human health such as food and cosmetics. And are being consumed.
- Such disposable resin molded articles can be made from a variety of resins that are thin, resilient and have rubber-like properties.
- resins that are thin, resilient and have rubber-like properties.
- the present invention is to provide a resin film having eco-friendly properties by exhibiting biodegradability while having physical properties similar to rubber.
- the present invention is to provide a method for producing the resin film.
- a resin particle containing polyalkylene carbonate resin As a resin particle containing polyalkylene carbonate resin, a 1st surfactant, and a 2nd surfactant;
- the second surfactant is present at a higher concentration at the center of the particle than at the surface of the particle, and the first surfactant is present at a higher concentration at the surface of the particle than at the center of the particle.
- polyalkylene carbonate-based resin film comprising a.
- the content of the first surfactant included in the center of the resin particles may be less than 5% by weight of the total content of the first surfactant included in the resin particles.
- the content of the first surfactant contained in the area larger than 1/2 of the particle radius from the center of the resin particles may be 95% by weight or more.
- the content of the second surfactant included in the center of the resin particles may be greater than or equal to 95% by weight of the total content of the second surfactant included in the resin particles. Further, based on the total amount of second surface active agent contained in the resin particles, the content of the second surface active agent that contains the center of the resin particles in a large area than 2/3 of the particle radius is 5 parts by weight 0/0 is less than Can be.
- the resin particles may include 1 to 20 parts by weight of the first surfactant, and 1 to 20 parts by weight of the second surfactant, based on 100 parts by weight of the polyalkylene carbonate resin.
- the weight ratio of the second surfactant to the first surfactant may be 1: 0.1 to 1: 2.
- the resin particles may have a particle diameter of 200 to 600 nm.
- the poly alkylene carbonate resin may be one comprising a repeating unit represented by the following formula (1):
- n is an integer from 10 to 1000
- R 1 and R 2 are each independently hydrogen, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an alkenyl group having 1 to 20 carbon atoms, or a cycloalkyl group having 3 to 20 carbon atoms, and R 1 and R 2 are each other Connected to form a cycloalkyl group having 3 to 10 carbon atoms.
- the first surfactant may be at least one compound selected from the group consisting of anionic surfactants and nonionic surfactants.
- the second surfactant may include a 10 to 40 carbon atoms, alkanes, mercaptans, carboxylic acids, ketones, amines, and nonionic surfactants having a HLB (Hydrophile-Lipophile Balance) value of 11 or less. It may be one or more compounds selected from the group.
- HLB Hydrophile Balance
- the resin particles may further include at least one water-soluble polymer selected from the group consisting of salose, polyvinyl alcohol, polyacrylic acid, and polymethacrylic acid.
- the tensile strength up to 500% is 8 MPa or less, the elongation at break is 800% to 1600%, and the tensile strength is 5 to 25 MPa.
- the resin film may be disposable gloves, disposable containers, disposable rubber molded articles, or the like.
- a method for producing a polyalkylene carbonate-based resin film comprising a.
- the preparing of the mulberry composition may include preparing an organic solution including a polyalkylene carbonate resin, a second surfactant, and an organic solvent; Preparing an aqueous solution comprising a first surfactant; And it may include the step of mixing the organic solution and the aqueous solution.
- the mixing of the organic solution and the aqueous solution may include adding an aqueous solution to the organic solution to form a water-in-oil type (W / O) emulsion composition; And increasing the supply amount of the aqueous solution to phase inversion the water-in-oil type (W / 0) emulsion dog composition into the oil-in-water type (0 / W) into the mulberry composition.
- the emulsion composition may have a solid content of 10 to 50% by weight based on the total weight of the composition.
- the emulsion composition may have a viscosity of 1 to 70 cP.
- the polyalkylene carbonate-based resin film according to the present invention has biodegradability and complete combustion characteristics, and may exhibit environmentally friendly rubber-like properties. Accordingly, the resin film may be applied to various resin molded articles requiring elasticity, and particularly, may be suitably applied to resin molded articles such as disposable gloves, disposable containers, and disposable rubber molded articles.
- Example 1 is a graph (SS curve) measuring tensile properties of a resin film according to Example 1 of the present invention :
- FIG. 2 is a graph (SS curve) of measuring tensile properties of a resin film according to Comparative Example 1 of the present invention.
- 3 is a graph (SS curve) for evaluating tensile properties of a resin film according to Comparative Example 1 of the present invention.
- first or second may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
- first component may also be referred to as a second component, and similarly, the second component may also be referred to as a first component.
- any component "substantially does not exist” in a specific region of the resin particles means that the content of any component present in the specific region of the resin particles is about the total content of any component included in the resin particles. It may mean less than 5 weight percent, or less than about 3 weight percent, or less than about 1 weight percent.
- the "disposable resin molded article” is not used semi-permanently or permanently, but is used once or several times, for example, within 10 times, preferably 5 times, and then disposed of or recycled through a predetermined process. Refers to any resin molded article to be processed.
- Such disposable resin molded articles may comprise a resin layer stratifying a range of elongation and strength similar to that of rubber, or may consist only of such a resin layer.
- Examples of such molded articles may include disposable containers such as disposable gloves, disposable films, disposable cups, or disposable dishes, and building materials or automotive interior materials.
- the use of such disposable resin molded article is particularly
- the present invention is not limited thereto and may include molded articles used in various fields such as medicine, chemistry, chemicals, food, or cosmetics.
- the inventors of the present invention in the course of research on biodegradable resin moldings, in the case of emulsified composition including polyalkylene carbonate resin particles in which the distribution of the first surfactant and the second surfactant is controlled, It was confirmed that a film can be formed. Furthermore, the resin particles included in the mulberry composition can be more uniformly controlled in particle size, and the molded article manufactured using the same can provide improved touch and mechanical properties such as tensile strength. It was confirmed that the present invention was completed.
- the former latex resin composition was able to form a resin film through a coating method, but because of the low stability of the formed resin film, it was limited to apply to the production of a molded product of a complex structure, the mechanical properties of the resin film There was a falling issue.
- the composition applied to the production of the polyalkylene carbonate-based resin film according to the present invention includes the above resin particles, the stability of the composition is superior to the previous latex resin composition, and uniform size control of the resin particles Etc. are possible. Accordingly, the composition can be used to more stably form a resin film (film, etc.) having a uniform thickness and excellent mechanical properties through simple methods such as 3 ⁇ 4 molding or coating.
- a resin particle containing polyalkylene carbonate resin As a resin particle containing polyalkylene carbonate resin, a 1st surfactant, and a 2nd surfactant;
- the second surfactant is present at a higher concentration at the center of the particle than at the surface of the particle, and the first surfactant is present at a higher concentration at the surface of the particle than at the center of the particle.
- polyalkylene carbonate-based resin film comprising a.
- the polyalkylene carbonate-based resin film according to the embodiment may be formed in a form including a resin particle containing a polyalkylene carbonate resin, a first surfactant and a second surfactant.
- the The resin film may be formed from an emulsion composition comprising the resin particles, which may be included in the resin film in the form of a matrix fused with each other by coagulation phenomena between particles.
- the resin film is in the form of particles inherent (non-limiting example, the form having a particle center including the polyalkylene carbonate resin and the second surfactant, and the particle surface surrounding the center including the first surfactant) It may contain a part of the resin particles are maintained.
- the polyalkylene carbonate resin included in the resin particles is an amorphous transparent resin, unlike the aromatic polycarbonate resin, which is a similar series of engineering plastics, is biodegradable and thermally decomposable at a low temperature, and also includes carbon dioxide and water. It has the advantage of being completely decomposed and free of carbon residues.
- the polyalkylene carbonate resin can be controlled within this range while having a relatively low glass transition temperature (Tg) of about 40 ° C. or less, for example, about 10 to 4 (C) (Inoue et al. Polymer J, 1982, 14, 327-330).
- the polyalkylene carbonate resin is a polycarbonate polymer prepared by copolymerization using an epoxide compound, for example, an alkylene oxide compound and carbon dioxide as a monomer, It can be defined as a homopolymer or copolymer comprising repeating units:
- n is an integer of 10 to 1000
- R 1 and R 2 are each independently hydrogen, an alkyl group having 1 to 20 carbon atoms, carbon number
- Such polyalkylene carbonate resins are, for example, ethylene oxide, propylene oxide, 1-butene oxide, 2-butene oxide, isobutylene oxide, 1-pentene oxide, 2-pentene oxide, 1-nuxene oxide , 1-octene oxide, cyclopentene oxide, cyclonuxene oxide, styrene oxide or butadiene monooxide and the like, or can be obtained using two or more of various epoxide-based monomers selected from them.
- Such a polyalkylene carbonate resin may be a single polymer composed of the repeating units or a copolymer including the repeating units so as to maintain unique physical properties according to the repeating units.
- It may be a copolymer of two or more kinds of repeating units belonging to the category of 1, or may be a copolymer including an alkylene oxide resin-based repeating unit and the like together with the repeating units.
- the polyalkylene carbonate resin may contain at least one kind of the repeating unit of Formula 1 to maintain specific physical properties due to the repeating unit of Formula 1, for example, biodegradability or low glass transition temperature. 40 mol%, preferably at least about 60 mole 0/0 or more to, and more preferably may be a copolymer comprising at least about 80 mol%.
- various functional groups such as hydrogen, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an alkenyl group having 1 to 20 carbon atoms, or a cycloalkyl group having 3 to 20 carbon atoms may be substituted in the repeating unit of Formula 1
- an appropriate functional group may be selected among them. For example, when hydrogen or a smaller carbon number functional group (for example, a small carbon number alkyl group or a cycloalkyl group, etc.) is substituted, the polyalkylene carbonate resin including the repeating unit of Chemical Formula 1 is more biodegradable.
- polyethylene carbonate resins are faster than polypropylene carbonate resins. Biodegradation has been reported (Inoue et al. Chem. Pharm. Bull, Jpn, 1983, 31, 1400; Ree et al. Catalysis Today, 2006, 115, 288-294).
- the polymerization degree n of the repeating unit of Formula 1 may be 10-1000, preferably 50-500, and the polyalkylene carbonate resin including the same may be about 10,000 to about 1,000,000, It may preferably have a weight average molecular weight of about 50,000 to about 500,000.
- the repeating unit and the polyalkylene carbonate resin have a polymerization degree and a weight average molecular weight in this range, the resin layer or the disposable resin molded article obtained therefrom may exhibit biodegradability together with mechanical properties such as appropriate strength.
- the resin particles may further include a water-soluble polymer conventional in the art to which the present invention belongs.
- the water-soluble polymer may be more uniform physical properties when the composition containing the resin particles are applied.
- the water-soluble polymer may be at least one compound selected from the group consisting of salose, polyvinyl alcohol, polyacrylic acid, and polymethacrylic acid.
- the content of the water-soluble polymer may be determined in consideration of the effects on the biodegradability and mechanical properties of the resin film required in the present invention, for example, 20 parts by weight or less based on 100 parts by weight of the polyalkylene carbonate resin.
- the resin particles contained in the resin film of the embodiment, together with the aforementioned polyalkylene carbonate resin includes a first surfactant and a second surfactant.
- the first and second surfactants have different concentration distributions at the center and the surface of the resin particles.
- the first surfactant is present at a higher concentration at the surface of the resin particles than at the center of the resin particles.
- the second surfactant is present at a higher concentration at the center of the resin particles than at the surface of the resin particles.
- the first surfactant may be substantially absent from the center of the resin particles, and the second surfactant may be substantially absent from the surface of the resin particles.
- the "center” of the resin indenter means a region smaller than 2/3 of a radius or a region smaller than 1/2 of a radius from the center of the resin particles.
- the "surface” of the resin particles means a region other than the central portion of the resin particles.
- the term "substantially free of" the first or second surfactant in a specific region of the resin particles means that the specific particles of the resin particles with respect to the total content of the first or second surfactants contained in the resin particles.
- Or 1 meaning that the amount of the second surfactant from about 5 weight 0/0 non-only, or less than about 3 wt%, or only about 1 weight% US.
- the first surfactant may be substantially absent from the center of the resin particles in a region smaller than 1/2 or 2/3 of the radius of the resin particles, and in other regions (i.e., of the resin particles surface) may contain from about 95 weight 0/0 or more of the first surface active agent content of which is included in the resin particles.
- the second surfactant may not be substantially present in a region (ie, the surface of the resin particle) larger than 1/2 or 2/3 of the radius of the resin particle from the center of the resin particle, and the center of the resin particle. At least 95 wt% of the second surfactant content included in the resin particles may be included together with the polyalkylene carbonate resin.
- the resin particles included in the resin film according to the embodiment includes a particle center including a polyalkylene carbonate resin and a second surfactant, and particles including a first surfactant surrounding the center. It can have a surface.
- a second surfactant is substantially not present on the surface of the particles, and the first surfactant does not penetrate or exist below a predetermined depth of the resin particles.
- Surfactants allow the polyalkylene carbonate resin to be present in more stable and uniformly sized particles, wherein the resin particles are present in the composition. Make sure it is stable and distributed. Furthermore, as the aggregation between the resin particles is minimized and the effective solid content dispersed in the composition is kept high, a molded article having a more uniform thickness and uniform physical properties can be formed at the time of application of the composition.
- the resin particles included in the emulsion composition when the resin particles included in the emulsion composition are unstable, the resin particles may aggregate to form a precipitate, thereby lowering the content of the effective solids dispersed in the composition (wherein 'the effective solids content 'Is the solids present in a stable dispersed phase in the composition, excluding aggregates and precipitates formed by coagulation of the resin particles, meaning the content of resin particles and other additives that can be used directly in the manufacture of resin molded articles.' .
- the resin particles according to the embodiment is formed by simultaneously including the first surfactant and the second surfactant in the above-described concentration distribution, the resin particles can achieve a more stable dispersed phase in the composition, the particles Aggregation of the liver can be minimized so that the content of effective solids dispersed in the composition can be maintained high. If one of the first surfactant and the second surfactant is not included or the concentration distribution does not satisfy the above embodiment, the content of effective solids dispersed in the composition is lowered due to the aggregation of unstable resin particles. As a result, production of a resin molded article having a uniform thickness and physical properties may be impossible.
- the presence of the first surfactant can be confirmed through MALDI-TOF Mass, GC / Mass, NMR analysis, etc. from the supernatant obtained by centrifuging the composition containing the resin particles.
- the presence of the second surfactant can be confirmed through MALDI-TOF Mass, GC / Mass, NMR analysis, etc. from the precipitate obtained by centrifuging the composition containing the resin particles.
- the second surfactant is a material having lower hydrophilicity than the first surfactant.
- the relatively low hydrophilic second surfactant is distributed in the center of the resin particles, and the relatively high hydrophilic first surfactant is applied to the surface of the resin particles. It becomes distributed and can predict the structure of the resin particle containing a 1st surfactant and a 2nd surfactant.
- the resin film may be obtained from an emulsion composition containing the resin particles.
- the first surfactant and the second surfactant are compounds capable of exhibiting the concentration distribution as described above in consideration of hydrophilicity differences and the like. Can be determined. That is, the second surfactant is a material having a lower hydrophilicity or a lower HLB (Hydrophile-Lipophile Balance) value than the first surfactant, and enables the above-described concentration distribution.
- HLB Hydrophilicity
- the first surfactant may be at least one compound selected from the group consisting of anionic surfactants and nonionic surfactants;
- the compound may be at least one compound selected from the group consisting of carboxylate, sulfonate, sulfate ester salt, phosphate ester salt, quaternary ammonium salt, ether type, ester ether type, ester type, and nitrogen type.
- Such compounds may be applied without particular limitation to those conventional in the art.
- the first surfactant is sodium alkylbenzenesulfonate, sodium alkylsulfonate, polyethylene oxide alkyl ether, polyethylene oxide alkylphenyl ether, polyethylene oxide alkyl ether sulfonate, polyethylene oxide alkyl ether phosphate, sodium lauryl sulfate
- Anionic surfactants such as alkyl ether carbonate, alkyl ether sulfate, alkylaryl ether sulfate, alkylamide sulfate, alkyl phosphate, alkyl ether phosphate, and alkylaryl ether phosphate; Alkyl polyoxyethylene ether, Alkyl aryl polyoxyethylene ether, Alkyl aryl formaldehyde condensation polyoxyethylene ether, Block polymer which makes polyoxypropylene lipophilic, Polyoxyethylene ether of glycerine ester, Polyoxyethylene ether of sorbitan ester, Solbi can be used as esters,
- Nonionic surfactants may be included in an amount of 1 to 20 parts by weight, preferably 1 to 15 parts by weight, and more preferably 1 to 10 parts by weight, based on 100 parts by weight of the aforementioned polyalkylene carbonate resin. That is, while allowing the surface surrounding the center of the resin particles to be formed evenly, in consideration of problems such as processability and mechanical properties of the resin molding that may occur when the first surfactant is excessively added, It is advantageous to make the content of the first surfactant to be in the above-described range.
- the second surfactant is to reduce the water solubility of the resin particles present in the solvent (solvent solubility) in the solvent to prevent the coarse between the resin particles, as described above, the type is the first interface It may be selected in consideration of the relationship with the active agent.
- the second surfactant may be a non-ionic interface having alcohols, alkanes, mercaptans, carboxylic acids, ketones, amines, and HLB (Hydrophile-Lipophile Balance) values of 11 or less. It may be one or more compounds selected from the group comprising an active agent.
- the second surfactant is nucleodecane, cetyl alcohol, polyoxyethylene stearyl ether, polyoxyethylene stearyl amine, polyoxyethylene stearyl ester, polyoxyethylene monostearate, polyoxyethylene sorbent Non-molecular monooleate, polyoxyethylene lauryl ether, ethoxylated alcohol of 10 to 20 carbon atoms, ethoxylated octylphenol, ethoxylated fatty ester, sorbitan laurate, sorbitan monostearate, propylene glycol monostearate, ethylene Glycol monostearate, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, or a combination thereof.
- the second surfactant may be included in an amount of 1 to 20 parts by weight, preferably 1 to 15 parts by weight, and more preferably 1 to 10 parts by weight, based on 100 parts by weight of the aforementioned polyalkylene carbonate resin. That is, while allowing the resin particles to be formed more stably, in consideration of the particle size and the difficulty of controlling the stability of the composition and the physical properties of the resin molding, which may occur when the second surfactant is added in excess, It is advantageous that the content of the surfactant is in the above-mentioned range.
- the weight ratio of the second surfactant to the first surfactant is 1: 0.1 to 1: 2, preferably 1: 0.2 to 1: 1, Preferably it may be adjusted to be 1: 0.3 to 1: 0.6.
- the resin particles may have a particle diameter of 200 to 600 nm, preferably 250 to 600 nm, more preferably 250 to 550 nm. That is, the particle size of the resin particles satisfying the above-mentioned range is advantageous in terms of forming a film having a uniform thickness when preparing a resin molding while maintaining the content of the effective solid content included in the emulsion composition.
- the particle diameter of the resin particles does not satisfy the above-mentioned range (for example, when the particle diameter exceeds 600 nm), the resin particles are not stable and it is difficult to sufficiently secure the solid content contained in the emulsion composition. It may be difficult to form a resin molded article having a uniform thickness and physical properties.
- the resin film according to the embodiment is capable of stretching at a higher magnification even with a lower stress than the latex film (for example, nitrile-based film), and exhibits a higher maximum elongation rate. It has the advantage of excellent mechanical properties.
- the polyalkylene carbonate resin film is 30 to 70; In the thickness of, the elongation to 500% elongation is 8 MPa or less, the elongation at break is 800% to 1600%, it can exhibit a characteristic that the break stress is 5 to 25 MPa.
- the resin film of the embodiment (FIG. 1: SS curve for the resin film according to Example 1) has an elongation of 500 at a thickness of about 55 / m.
- FIG. 1 SS curve for the resin film according to Example 1
- Elongation is possible at higher magnifications.
- Such physical properties are physical properties that are closely related to the fit of the disposable gloves, in particular, disposable gloves, and the like. As it can be stretched at a high magnification even with a small force, the elasticity may be excellent and the fit may be excellent.
- the resin film has a stress of 2 to 8 MPa at an elongation of 300% to 500% at a thickness of 30 to 70im; Preferably, in the thickness of 40 to 60 D1, it is possible to exhibit physical properties of 4 to 8 MPa in the elongation of 300% to 500%.
- the resin film is 30 to 70; At a thickness of 2 to 6 MPa at an elongation of 300%; Preferably, at a thickness of 40 to 60, it is possible to exhibit physical properties of 4 to 6 MPa of force at 300% elongation.
- the resin film has a thickness of 30 to 70 / ⁇ , 3 to 8 MPa stress at 500% elongation; Preferably at a thickness of 40 to 60, it can exhibit a physical property of 5 to 8 MPa stress at 500% elongation.
- the resin film has a elongation at break at a thickness of 30 to 70
- the fracture stress may exhibit physical properties of 5 to 25 MPa, preferably 10 to 20 MPa, more preferably 10 to 15 MPa. That is, the resin film of the embodiment may not only have excellent rubber elasticity, but also exhibit high durability, and such physical properties could not be achieved through conventional nitrile-based films or biodegradable films.
- the resin film according to the present invention exhibits physical properties similar to those of rubber, and has biodegradability and complete combustion characteristics of polyalkylene carbonate resins, and can be suitably used for applications such as disposable resin molded articles requiring rubber elasticity.
- the disposable resin molded article may include the resin film of the embodiment, or may be made of only such a resin film. Examples of such molded articles include disposable containers such as disposable gloves, disposable films, disposable cups or disposable dishes, and disposable rubber or resin molded articles that can be used for building materials or automobile interior materials and are incinerated.
- disposable resin molded articles is not particularly limited and may include molded articles used in various fields such as medicine, chemistry, chemicals, food, or cosmetics. Meanwhile, according to another embodiment of the present invention,
- a method for producing a polyalkylene carbonate-based resin film comprising a.
- the resin particles comprise a polyalkylene carbonate resin, a first surfactant and a second surfactant, wherein the second surfactant is present at a higher concentration at the center of the particle than at the surface of the particle.
- the first surfactant may be present at a higher concentration at the surface of the particle than at the center of the particle.
- the air mulch composition may be a oil-in-water emulsion composition comprising a continuous phase containing water, and the resin particles dispersed in the continuous phase.
- the emulsion composition is an oil-in-water type conventional in the art to which the present invention belongs, except for using the aforementioned polyalkylene carbonate resin, the first surfactant, the second surfactant, and the like. It may be prepared according to a method for preparing the emulsion composition, for example, direct emulsification or phase inversion emulsification.
- the preparing of the emulsion composition may include preparing an organic solution including a polyalkylene carbonate resin, a second surfactant, and an organic solvent; Preparing an aqueous solution comprising a first surfactant; And it may be carried out by a method comprising the step of mixing the organic solution and the aqueous solution.
- phase inversion emulsification method in the step of mixing the organic solution and the aqueous solution, adding an aqueous solution to the organic solution to form a water-in-oil type (W / 0) emulsion composition; And supply amount of the aqueous solution Increasing the phase-inversion of the water-in-oil (w / o) emulsion dog composition to the oil-in-water (o / w) mulch composition.
- the kind and content of the polyalkylene carbonate resin, the 1st surfactant, and the 2nd surfactant which are used for preparation of the said emulsion dog composition are replaced by the above-mentioned content.
- the organic solvent included in the emulsion composition may be selected from conventional solvents in which the polyalkylene carbonate resin may be dissolved, and thus the configuration thereof is not particularly limited.
- the organic solvent is methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, vinyl acetate, methyl ethyl ketone, dichloromethane, dichloroethane, chloroform, acetonitrile, methylpyrroli
- It may be at least one solvent selected from the group consisting of don, dimethyl sulfoxide, nitromethane, nitropropane, caprolactone, acetone, polypropylene oxide, tetrahydrofuran, benzene, and styrene.
- the content of the organic solvent may be determined in consideration of formation efficiency and stability of the resin particles.
- the organic solvent may be included in an amount of 50 to 1000 parts by weight, preferably 100 to 1000 parts by weight, and more preferably 200 to 1000 parts by weight, based on 100 parts by weight of the poly alkali carbonate resin.
- the meolgyeon composition is more preferably a resin castle type in view of such water workability solid content, based on the total weight of the composition 10 to 50 parts by weight 0/0, preferably from 10 to 40 parts by weight 0/0, preferably 10 to to 30 such that the weight 0/0 is advantageous.
- the viscosity of the emulsion composition is preferably 1 to 70 cP, preferably 1 to 50 cP, more preferably 2 to 30 cP, in view of processability and the like.
- the emulsion composition may further include additives such as an antifoaming agent, a water-soluble polymer, and the like so that more uniform physical properties may be expressed when the composition is applied.
- the antifoaming agent since the antifoaming agent may be used in the art to which the present invention belongs, the configuration thereof is not particularly limited, but may preferably be a silicone-based antifoaming agent. And above The antifoaming agent may be added at 0.001 to 0.1 parts by weight based on the total weight of the composition.
- the method for producing a resin film according to the embodiment using the emulsion composition prepared by the above method, forming a coating layer comprising the composition; And drying the coating layer.
- the forming of the coating layer including the composition may be performed by coating the emulsion composition with a predetermined thickness on a mold or a substrate having a molded product shape to be manufactured. At this time, the coating of the composition may be applied to a conventional method in the art, it is not particularly limited thereto.
- the drying of the coating layer is a step for forming a resin film by evaporating a solvent such as water contained in the coating layer.
- the coating layer has uniform physical properties due to coagulation phenomena. It can be carried out at a temperature at which the resin film can be formed, for example, 70 to 160 ° C, or 90 to 140 ° C, or 100 to 130 ° C.
- a temperature at which the resin film can be formed for example, 70 to 160 ° C, or 90 to 140 ° C, or 100 to 130 ° C.
- Polypropylene carbonate resins were prepared by copolymerizing propylene oxide and carbon dioxide using a Zn-glutarate catalyst (Polymer Journal 1981, 13, 407; US Pat. No. 5,026,676).
- a dry zinc-glutarate catalyst (lg) and purified propylene oxide (30 g) were added to an autoclave reactor equipped with a stirrer, and carbon dioxide was layered at about 10 atm and stirred for 10 minutes. Thereafter, the carbon dioxide layered again about 50 atm, the temperature was raised to 60 ° C and reacted for about 24 hours. After the reaction, the unreacted propylene oxide was removed under low pressure and dissolved in dichloromethane solvent. It was washed with aqueous hydrochloric acid solution (0.1M) and then spit in methanol solvent to obtain polypropylene carbonate resin. The recovered resin was about 25 g, and the production was confirmed by nuclear magnetic resonance spectra, and the weight average molecular weight analyzed by GPC was found to be 250,000.
- Polyethylene carbonate resins were prepared by copolymerizing ethylene oxide and carbon dioxide using a ethyl-zinc catalyst (Journal of Polymer Science B 1969, 7, 287; Journal of Controlled release 1997, 49, 263).
- a dry ethyl-zinc catalyst (lg) and 10 mL of a dioxane solvent were added thereto, followed by slowly stirring, and distilled purified water O.lg was added to a 5 mL dioxane solvent. After layering about 10 atm of carbon dioxide, the mixture was stirred at 120 ° C for 1 hour. Thereafter, purified ethylene oxide (10 g) was added, and carbon dioxide was further layered at about 50 atm, and the temperature was adjusted to 60 ° C. for 48 hours. After the reaction, unbanung ethylene oxide was removed under low pressure and dissolved in dichloromethane solvent.
- the recovered resin was about 15 g, the production was confirmed by nuclear magnetic resonance spectra, and the weight average molecular weight analyzed by GPC was confirmed to be 230,000.
- the resin particle size included in the composition was measured using a particle size analyzer (NICOMP380) under a temperature condition of about 23 ° C.
- an emulsion composition containing resin particles was prepared by stirring by stabilizing at about 10,000 rpm for about 20 minutes. Thereafter, dichloromethane was separated from the emulsion composition using a rotary evaporator to prepare a final polyethylene carbonate emulsion composition.
- the solid content of the composition is about 25% by weight
- the particle size of the resin particles is about
- the viscosity of the composition was found to be about 4.5 cP.
- the presence of the first surfactant and the second surfactant contained in the resin particles was separated into the supernatant and the precipitate by centrifugal separation, respectively, and confirmed through MALDI-TOF Mass.
- the supernatant corresponds to about 97% by weight of the total content of the first surfactant added
- the precipitate was included and a second surfactant, which is equivalent to about 99 weight 0/0 of the second surface active agent full hyamryang addition, the first surface active agent was found to contain less than about 3% by weight .
- the resin particles include a polyethylene carbonate resin and a second surfactant in the center, and the first surfactant on the surface It could be expected to form into a structure.
- the formed deposit was found to be about 4% by weight relative to the total solids.
- the glass mold coated with calcium nitrate was dipped into the emulsion composition for about 15 seconds, and then dried at about 130 ° C. to form a resin layer. Thereafter, the mixture was leached in running water for about 1 minute, and then dried at about 130 ° C. to obtain a resin film having a thickness of about 55 m.
- Example 2
- An emulsion composition was prepared under the same conditions and methods as in Example 1 except that the content of hexadecane (second surfactant) was adjusted to about 5.2 g when the organic solution was prepared.
- the solid content of the composition is the particle diameter of about 25 weight 0/0, the resin particles had a viscosity of about 300 to 350nm, the composition was found to be about 4.5 cP.
- a resin film having a thickness of about 55 IM was obtained in the same manner as in Example 1, except that the emulsion composition was used.
- Example 3 A resin film having a thickness of about 55 IM was obtained in the same manner as in Example 1, except that the emulsion composition was used.
- the solid content of the composition is about 25% by weight increase
- the particle size of the resin particles was found to be about 300 to 400 nm
- the viscosity of the composition is about 21 cP.
- a resin film having a thickness of about 55 was obtained in the same manner as in Example 1, except that the emulsion composition was used.
- Example 4
- the mixture While slowly adding the aqueous solution to the organic solution, the mixture was stirred at about 10,000 rpm to induce phase inversion, and the resin particles were stabilized by stabilizing by stirring at about 10,000 rpm for about 5 minutes after the phase inversion occurred.
- the included emulsion composition was prepared. Thereafter, dichloromethane was separated from the emulsion composition using a rotary evaporator to prepare a final polyethylene carbonate emulsion composition.
- the composition having a solid content of the mouth diameter of viscosity about 350 to 500 nm, a composition of about 25 weight 0/0, the resin particles was found to be about 4.5 cP.
- the presence of the first surfactant and the second surfactant contained in the resin particles was confirmed by MALDI-TOF Mass by separating the emulsion composition into a supernatant and a precipitate by centrifugation.
- the resin particles are formed in a structure including a polyethylene carbonate resin and a second surfactant in a central portion and a first surfactant on a surface thereof.
- a structure including a polyethylene carbonate resin and a second surfactant in a central portion and a first surfactant on a surface thereof. could be predicted.
- a resin film having a thickness of about 50 was obtained in the same manner as in Example 1, except that the emulsion composition was used. Comparative Example 1
- An air mulberry composition was prepared under the same conditions and methods as in Example 1, except that nucledecane (second surfactant) was not added in the preparation of the organic solution.
- the composition having a solid content of about 25 weight 0/0, mouth diameter viscosity of 650 to 800 nm, the composition of the resin particles was found to be about 4.5 cP.
- the coagulum formed was found to be about 18% by weight relative to the total solids.
- a resin film having a thickness of about 50 was obtained in the same manner as in Example 1, except that the emulsion composition was used. Comparative Example 1
- a stirrer, a silver gauge, a beaker, a nitrogen gas inlet, and the like were prepared, and a high pressure reaction device was prepared to continuously feed raw materials.
- 30% by weight of acrylonitrile, 1,4-butadiene 66 parts by weight 0 /. Monomers containing methacrylate, 4 parts by weight 0 /.
- Common compound to 100 parts by weight 2 parts by weight of sodium alkylbenzene sulfonate, 0.5 parts by weight of t-dodecyl mercaptan and 140 parts by weight of ion-exchanged water were heated up to about 40 ° C.
- Nitrile Latex composition When it reached 95%, 0.1 parts by weight of sodium dimethyl dithio carbamate was added to stop the polymerization. Subsequently, the unreacted monomer was removed through a deodorizing process, and ammonia water, an antioxidant, and an antifoam column were added to obtain a Nitrile Latex composition.
- the content of the polymer dung produced after about 24 hours after the preparation of the emulsion composition was measured, and the content was 5% by weight or less in 'good', 5% by weight or more in the case of 10% by weight or less in 'normal' However, the case of exceeding 10% by weight was evaluated as 'bad'.
- FIGS. 1 to 3 The measurement results of the physical properties are collectively shown in Table 1 below, and S-S curves of the resin films of Example 1, Comparative Example 1, and Comparative Example 1 are shown in FIGS. 1 to 3.
- the graphs of FIGS. 1 to 3 are each 3 to 1 using one sample (FIG. 1 is a resin film of Example 1, FIG. 2 is a resin film of Comparative Example 1, and FIG. 3 is a resin film of Comparative Example 1).
- FIG. 1 is a resin film of Example 1
- FIG. 2 is a resin film of Comparative Example 1
- FIG. 3 is a resin film of Comparative Example 1
- Table 1 shows the average values of the measured data.
- the resin film according to Examples 1 to 4 not only exhibits elasticity similar to rubber, but also exhibits better elongation than the nitrile resin film (control example 1) conventionally applied to disposable resin molded articles. In particular, it was found to exhibit much lower 300% and 500% steps than the nitrile resin film. In addition, it was confirmed that the film according to Examples 1 to 4 has a good feel and is capable of producing a molded article having excellent quality.
- the resin film according to Comparative Example 1 had lower tensile strength and elongation than the films of Examples, in particular, the stability of the emulsion composition was very poor, so that the effective solid content contained in the composition was low, and the thickness of the formed film was It was confirmed that it was impossible to produce a stable resin molded article because it was not even.
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Abstract
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CN201380025611.5A CN104302692B (zh) | 2012-06-25 | 2013-06-21 | 基于聚亚烷基碳酸酯的树脂膜及其制备方法 |
JP2014527106A JP5940156B2 (ja) | 2012-06-25 | 2013-06-21 | ポリアルキレンカーボネート系樹脂フィルム及びその製造方法 |
US14/382,485 US9453141B2 (en) | 2012-06-25 | 2013-06-21 | Resin film based polyalkylene carbonate and method for preparing the same |
EP13809220.0A EP2865706B1 (en) | 2012-06-25 | 2013-06-21 | Polyalkylene carbonate-based resin film and method for preparing same |
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KR20120068081 | 2012-06-25 | ||
KR1020130071448A KR101501734B1 (ko) | 2012-06-25 | 2013-06-21 | 폴리알킬렌 카보네이트계 수지 필름 및 이의 제조 방법 |
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EP (1) | EP2865706B1 (ko) |
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KR (1) | KR101501734B1 (ko) |
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WO2021028918A1 (en) | 2019-08-12 | 2021-02-18 | Solutum Technologies Ltd | Composites and uses thereof |
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KR102207129B1 (ko) | 2015-09-02 | 2021-01-25 | 주식회사 엘지화학 | 폴리알킬렌 카보네이트계 수지 섬유의 제조 방법 |
KR20170027676A (ko) | 2015-09-02 | 2017-03-10 | 주식회사 엘지화학 | 수지 섬유의 제조 방법 |
KR102106116B1 (ko) * | 2016-02-11 | 2020-04-29 | 주식회사 엘지화학 | 폴리알킬렌 카보네이트를 포함하는 수지 조성물 |
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WO2021028918A1 (en) | 2019-08-12 | 2021-02-18 | Solutum Technologies Ltd | Composites and uses thereof |
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JP5940156B2 (ja) | 2016-06-29 |
EP2865706B1 (en) | 2017-08-02 |
EP2865706A1 (en) | 2015-04-29 |
JP2014531474A (ja) | 2014-11-27 |
CN104302692A (zh) | 2015-01-21 |
KR20140018099A (ko) | 2014-02-12 |
EP2865706A4 (en) | 2015-09-09 |
CN104302692B (zh) | 2017-06-13 |
US9453141B2 (en) | 2016-09-27 |
KR101501734B1 (ko) | 2015-03-11 |
US20150105501A1 (en) | 2015-04-16 |
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