WO2022080679A1 - 후공정을 통한 고기능성 고분자의 결정화 방법 및 이에 제조된 결정성 고분자 - Google Patents
후공정을 통한 고기능성 고분자의 결정화 방법 및 이에 제조된 결정성 고분자 Download PDFInfo
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- WO2022080679A1 WO2022080679A1 PCT/KR2021/012495 KR2021012495W WO2022080679A1 WO 2022080679 A1 WO2022080679 A1 WO 2022080679A1 KR 2021012495 W KR2021012495 W KR 2021012495W WO 2022080679 A1 WO2022080679 A1 WO 2022080679A1
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- Prior art keywords
- paek
- ether ketone
- polyaryl ether
- ketone
- heat treatment
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 229920000642 polymer Polymers 0.000 title claims abstract description 10
- 229920001002 functional polymer Polymers 0.000 title abstract description 3
- 238000012805 post-processing Methods 0.000 title abstract 2
- 239000008188 pellet Substances 0.000 claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 29
- 230000009477 glass transition Effects 0.000 claims abstract description 14
- 238000002844 melting Methods 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 11
- 229920006260 polyaryletherketone Polymers 0.000 claims description 291
- 229920001652 poly(etherketoneketone) Polymers 0.000 claims description 110
- 238000010438 heat treatment Methods 0.000 claims description 70
- 239000011261 inert gas Substances 0.000 claims description 26
- 238000002425 crystallisation Methods 0.000 claims description 25
- -1 ether ketone ketone Chemical class 0.000 claims description 14
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 13
- 229920002530 polyetherether ketone Polymers 0.000 claims description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
- 230000008025 crystallization Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 238000000149 argon plasma sintering Methods 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 4
- 238000000748 compression moulding Methods 0.000 claims description 4
- 230000008021 deposition Effects 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 229920001643 poly(ether ketone) Polymers 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 238000001175 rotational moulding Methods 0.000 claims description 4
- 238000003856 thermoforming Methods 0.000 claims description 4
- 150000002576 ketones Chemical class 0.000 claims description 3
- 229920001655 poly(etheretheretherketone) Polymers 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 19
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 238000010926 purge Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Natural products C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Images
Classifications
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- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
- C08G65/40—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols (I) and other compounds (II), e.g. OH-Ar-OH + X-Ar-X, where X is halogen atom, i.e. leaving group
- C08G65/4012—Other compound (II) containing a ketone group, e.g. X-Ar-C(=O)-Ar-X for polyetherketones
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/46—Post-polymerisation treatment, e.g. recovery, purification, drying
-
- 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
- C08G2250/00—Compositions for preparing crystalline polymers
Definitions
- the present invention relates to a method for crystallizing a high-functional polymer through a post-process and a crystalline polymer prepared through the method, and more specifically, to a polyaryl ether ketone (PAEK) provided in pellet or powder form at a glass transition temperature (Tg). ) to the melting point (Tm) by heat treatment to prepare a crystalline polyaryl ether ketone (PAEK) characterized in that.
- PEEK polyaryl ether ketone
- Polyaryl ether ketone means a generic name of already known industrial resins, and the types include polyether ketone, polyether ether ketone, polyether ketone ketone, and a mixture of polyether ketone and polyether ketone ketone. copolymers and the like.
- the polyaryl ether ketone (PAEK) has high heat resistance and excellent mechanical strength, so it is an ultra-high performance plastic used in various fields such as automobiles, aerospace, energy, and electrical and electronic fields.
- polyether ketone ketone (PolyEtherKetoneKetone, PEKK) represented by the following formula among various polyaryl ether ketone (PAEK)-based polymers is particularly high in heat resistance and excellent in strength, so it is widely used as engineering plastics.
- Engineering plastics are used in the fields of automobiles, aircraft, electrical and electronic equipment, machines, and the like, and the application area thereof is gradually expanding.
- Japanese Patent Laid-Open No. 2014-224274 discloses a method for producing a polyether ether ketone resin.
- the present invention has been devised to solve the problems of the prior art, and an object of the present invention is to provide a method for crystallizing polyaryletherketone (PAEK) in the form of amorphous or pellets or powders having a crystallinity of 5% or less. .
- PAEK polyaryletherketone
- Another object of the present invention is to provide a crystalline polyaryl ether ketone (PAEK) prepared through a crystallization method.
- PAEK crystalline polyaryl ether ketone
- one aspect of the present invention is,
- Tg glass transition temperature
- Tm melting point
- the polyaryl ether ketone is polyether ketone ketone (PEKK), polyether ether ketone (PEEK), polyether ether ketone ketone (PEEKK), polyether ketone ether ketone ketone (PEKEKK), polyether ether ether ketone (PEEEK), polyetherdiphenyletherketone (PEDEK), and may be a polymer selected from the group consisting of combinations thereof.
- the polyaryl ether ketone may have a T:I isomer ratio of 50:50 to 90:10.
- the polyaryl ether ketone may have a T:I isomer ratio of 60:40 to 85:15.
- the polyaryl ether ketone (PAEK) may have a T:I isomer ratio of 70:30.
- the polyaryl ether ketone (PAEK) in the form of pellets or powder may have a diameter of 1 mm to 10 mm and a length of 1 mm to 10 mm.
- the amorphous or polyaryl ether ketone (PAEK) having a crystallinity of 5% or less may have a diameter of 2 mm to 4 mm and a length of 3 mm to 5 mm.
- the amorphous or polyaryl ether ketone (PAEK) having a crystallinity of 5% or less may be prepared by heat treatment at a temperature of 160°C to 300°C.
- the heat treatment of the polyaryl ether ketone (PAEK) may be performed at a temperature of 150 °C to 340 °C.
- the heat treatment of the polyaryl ether ketone (PAEK) may be performed at a temperature of 160 °C to 280 °C.
- the heat treatment of the polyaryl ether ketone (PAEK) may be performed at a temperature of 160 °C to 250 °C.
- the heat treatment of the polyaryl ether ketone (PAEK) may be performed for 10 minutes or more.
- the heat treatment of the polyaryl ether ketone (PAEK) may be performed for 10 to 60 minutes.
- the heat treatment of the polyaryl ether ketone (PAEK) may be performed while stirring the polyaryl ether ketone (PAEK) in the form of pellets or powder.
- the heat treatment of the polyaryl ether ketone (PAEK) may be performed using a spiral elevator that vibrates the polyaryl ether ketone (PAEK) in the form of pellets or powder.
- the inert gas may be continuously supplied to the polyaryl ether ketone (PAEK), and the supply flow rate of the inert gas may be 10 mL/min or more.
- PAEK polyaryl ether ketone
- the supply flow rate of the inert gas may be 20 mL/min to 80 mL/min.
- the color difference ( ⁇ ) between the prepared polyaryl ether ketone (PAEK) and the heat-treated polyaryl ether ketone (PAEK) may be less than 1.8.
- PAEK crystalline polyaryl ether ketone
- the degree of crystallinity of the prepared crystalline polyaryl ether ketone (PAEK) may be 20% or more.
- the degree of crystallinity of the prepared crystalline polyaryl ether ketone (PAEK) may be 30% to 35%.
- PAEK crystalline polyaryletherketone
- polyaryl ether ketone (PAEK) in the form of pellets or powder is converted to a temperature of a glass transition temperature (Tg) to a melting point (Tm) in an inert gas atmosphere.
- Tg glass transition temperature
- Tm melting point
- the crystallinity of the polyaryl ether ketone (PAEK) may be increased.
- the crystallinity of polyaryl ether ketone (PAEK) produced by adjusting the temperature, time, and flow rate of the supplied inert gas of the heat treatment may be controlled.
- PAEK polyaryl ether ketone
- PAEK polyaryl ether ketone
- PEKK polyether ketone ketone
- Polyether ketone ketone (PEKK) granules having a T:I isomer ratio of 70:30 are extruded in an extruder at a temperature of 160°C to 300°C, preferably 160°C to 250°C, and the extrudate is cut to form pellets of amorphous polyether ketone ketone (PEKK) was obtained.
- the obtained polyether ketone ketone (PEKK) pellets had a diameter of 2 mm to 4 mm, and a length of 3 mm to 5 mm.
- the obtained polyether ketone ketone (PEKK) pellets were in an amorphous state, and showed a degree of crystallinity of 0% to 5%.
- the first aspect of the present application is a first aspect of the present application.
- Tg glass transition temperature
- Tm melting point
- FIG. 1 is a flowchart schematically illustrating a crystallization method of the polyaryl ether ketone (PAEK).
- the method for crystallizing polyaryl ether ketone includes preparing polyaryl ether ketone (PAEK) in the form of amorphous or pellet or powder having a crystallinity of 5% or less; (S100) ) may be included.
- the polyaryl ether ketone is polyether ketone ketone (PEKK), polyether ether ketone (PEEK), polyether ether ketone ketone (PEEKK), polyether ketone ether ketone ketone (PEKEKK) ), polyether ether ether ketone (PEEEK), polyether diphenyl ether ketone (PEDEK), and may be a polymer selected from the group consisting of combinations thereof, preferably polyether ketone ketone (PEKK) .
- the polyether ketone ketone is a polymer produced by chain polymerization of a terephthaloyl form represented by the following formula 1 and an isophthaloyl form represented by the following formula 2
- the characteristic may be determined according to the ratio.
- the terephthaloyl moiety is linear and has rigid rigidity, and the isophthaloyl moiety gives structural diversity due to its curved structure. It may have an effect on flowability and crystallization properties.
- the isophthaloyl (Isophthaloyl) moiety exhibits a low crystallization rate while increasing flexibility or fluidity, and thus the polymerized polyether ketone ketone (PEKK) may be amorphous or exhibit low crystallinity.
- the degree of crystallinity may be 5% or less.
- the amorphous or polyaryl ether ketone (PAEK) having a crystallinity of 5% or less may be provided in the form of pellets or powder.
- the amorphous or polyaryl ether ketone (PAEK) having a crystallinity of 5% or less may be prepared by heat treatment at a temperature of 160°C to 300°C, preferably manufactured by heat treatment at a temperature of 160°C to 250°C it may be
- the amorphous or polyaryl ether ketone (PAEK) having a crystallinity of 5% or less may be preferably provided in the form of pellets, and in this case, the pellets may be manufactured by extrusion processing in the above temperature range. .
- the amorphous or polyaryl ether ketone (PAEK) having a crystallinity of 5% or less may have a T:I isomer ratio of 50:50 to 90:10, preferably 60:40 to It may be 85:15, and according to an embodiment of the present application, it may be 70:30.
- the T:I isomer ratio may mean the ratio of the isomers represented by Chemical Formulas 1 and 2. That is, the amorphous or polyaryl ether ketone (PAEK) having a crystallinity of 5% or less may include two different isomeric forms of ketone-ketone as a repeating unit.
- the content of the repeating unit represented by the formula (1) may be the same as or included more than the content of the repeating unit represented by the formula (2), and as the content of the repeating unit represented by the formula (1) increases, the poly containing the same
- the crystallinity of aryl ether ketone (PAEK) may be higher.
- the amorphous or polyaryl ether ketone (PAEK) having a crystallinity of 5% or less may have a diameter of 1 mm to 10 mm and a length of 1 mm to 10 mm, preferably 2 It may have a diameter of mm to 4 mm and a length of 3 mm to 5 mm.
- the diameter and length ranges may be provided as a suitable size for a product that is actually sold.
- the crystallization method of the polyaryl ether ketone (PAEK) is a glass transition temperature (Tg) to the melting point (Tm) of the prepared polyaryl ether ketone (PAEK) in an inert gas atmosphere.
- Heat treatment at a temperature; (S200) may be included.
- the heat treatment of the polyaryl ether ketone (PAEK) may be performed at a temperature of 150 °C to 340 °C, preferably 160 °C to 280 °C, and more Preferably, it may be carried out at a temperature of 160 °C to 250 °C. That is, the lower limit of the above temperature range may be the glass transition temperature (Tg) of polyaryl ether ketone (PAEK), and the upper limit may be the melting point (Tm).
- Tg glass transition temperature
- Tm melting point
- the glass transition temperature (Tg) and the melting point (Tm) may be different depending on the ratio of the T:I isomer contained in the polyaryletherketone (PAEK), and the heat treatment temperature range is amorphous or 5
- the T:I isomer ratio of polyaryletherketone (PAEK) having a crystallinity of % or less is 50:50 to 90:10, it may be in a temperature range that can encompass it. That is, the crystallinity of the polyaryl ether ketone (PAEK) may be increased by heat-treating the amorphous or polyaryl ether ketone (PAEK) having a crystallinity of 5% or less in the temperature range as described above.
- the heat treatment of the polyaryl ether ketone (PAEK) may be performed for 10 minutes or more, preferably for 10 minutes to 60 minutes. In this case, as the heat treatment time increases, the crystallinity of polyaryl ether ketone (PAEK) may further increase.
- the heat source for the heat treatment is not particularly limited, but preferably hot air or infrared (IR) may be used.
- the heat treatment may be performed in a sealed reactor, and may be performed by supplying hot air into the reactor or irradiating infrared rays (IR).
- the reactor may have a predetermined space therein, and polyaryl ether ketone (PAEK) in the form of amorphous or pellet or powder having a crystallinity of 5% or less may be inserted into the space.
- PAEK polyaryl ether ketone
- a hot air supply hopper for supplying hot air into the reactor may be separately provided, and the hot air supply hopper is connected to the reactor through a tube and the It may be that hot air is supplied into the reactor. In this case, the hot air may be supplied through the lower end of the reactor.
- a vibration device may be separately installed inside the reactor.
- infrared (IR) when used as a heat source, it may be installed in an infrared emitter in the reactor, and the heat treatment may be performed by infrared radiation emitted from the infrared emitter.
- an agitator equipped with an impeller for stirring may be installed inside the reactor, and a stirring motor may be connected to one side for operation of the agitator.
- the reactor may be installed so as to be able to rotate by itself. In this case, it may be installed in a cylindrical shape, laid out in the transverse direction, and then rotated about a central axis. That is, in order to prevent a caking phenomenon, the reactor may use a spiral elevator capable of supplying vibration or use an agitator installed therein. In this case, when the vibration transfer machine is used, the transfer and crystallization of polyaryl ether ketone (PAEK) may be performed at the same time.
- PAEK polyaryl ether ketone
- the heat treatment of the polyaryl ether ketone (PAEK) may be performed while stirring the polyaryl ether ketone (PAEK) in the form of pellets or powder.
- PAEK polyaryl ether ketone
- Tg glass transition temperature
- caking of the pellets or powder may occur due to an exothermic reaction while crystallizing, which is a process performed to prevent this. it could be
- the heat treatment may be performed by placing polyaryl ether ketone (PAEK) in pellet or powder form in a sealed reactor as described above.
- the stirring may be performed by using a general agitator or rotating the reactor. That is, when the stirrer is used, the impeller can continuously apply a physical impact to the polyaryl ether ketone (PAEK) in the form of pellets or powder to prevent caking, and when rotating the reactor, the pellet Alternatively, polyaryl ether ketone (PAEK) in powder form also continuously rotates together with the reactor, so that the caking phenomenon may be prevented.
- the use of the stirrer and the rotation of the reactor may be used simultaneously.
- the inert gas may be continuously supplied to polyaryl ether ketone (PAEK).
- PAEK polyaryl ether ketone
- the oxidation of the polyaryl ether ketone (PAEK) may be prevented by continuously supplying an inert gas, and thus discoloration of the polyaryl ether ketone (PAEK) may be prevented.
- the inert gas may be a commonly known inert gas, for example, nitrogen (N 2 ), argon (Ar), or helium (He) may be used.
- the heat treatment may be performed by placing polyaryl ether ketone (PAEK) in pellet or powder form in a sealed reactor, in which case the inert gas is continuously supplied into the reactor. may be supplied.
- the supply flow rate of the supplied inert gas may be 10 mL/min or more, preferably 20 mL/min to 80 mL/min.
- the color difference ( ⁇ ) of the prepared polyaryl ether ketone (PAEK) and the heat-treated polyaryl ether ketone (PAEK) may be less than 1.8, preferably 0.7 or less, more preferably It may be 0.5 or less, and most preferably, it may be 0.1.
- the color difference between the prepared polyaryl ether ketone (PAEK) and the heat-treated polyaryl ether ketone (PAEK) may be related to the flow rate of the inert gas continuously supplied, and as the flow rate of the supplied inert gas increases, the color difference value may be less. That is, the small color difference may mean that the rate at which polyaryl ether ketone (PAEK) is oxidized during heat treatment is small, and may mean that the degree of discoloration is small.
- PAEK crystalline polyaryl ether ketone
- the third aspect of the present application is
- PAEK crystalline polyaryletherketone
- PAEK crystalline polyaryletherketone
- the crystalline polyaryl ether ketone (PAEK) may have an increased crystallinity compared to the amorphous or polyaryl ether ketone (PAEK) having a crystallinity of 5% or less prepared before performing the crystallization method. there is. That is, the thermal properties of the polyaryl ether ketone (PAEK) may be improved by obtaining crystalline polyaryl ether ketone (PAEK) having a high degree of crystallinity.
- the crystallinity of the prepared crystalline polyaryl ether ketone (PAEK) may be 20% or more, preferably 28% to 35%, and most preferably 30% to 35% % may be.
- the degree of crystallinity of the prepared crystalline polyaryl ether ketone (PAEK) may be related to the temperature and time of the heat treatment according to the first aspect of the present application. Specifically, as the temperature and time of the heat treatment increase, the degree of crystallinity may increase. Since the detailed description thereof has been described above in the first aspect of the present application, the detailed description thereof will be omitted in the second aspect of the present application.
- the prepared crystalline polyaryl ether ketone may be obtained in the form of pellets or powder, which may be obtained by laser sintering, fused deposition modeling, molding, injection molding, extrusion,
- the article may be manufacturable using a technique selected from thermoforming, rotational molding, compression molding, compounding or impregnation.
- wet impregnation to prepare a pre-impregnated composite strip comprises, for example, polyaryletherketone (PAEK) pellets (powder) and phosphate salt(s) on carbon or glass fibers.
- PAEK polyaryletherketone
- phosphate salt(s) on carbon or glass fibers.
- the dispersion may include, for example, polyetherketoneketone (PEKK) pellets (powder) and phosphate salt(s) and a surfactant in aqueous solution.
- the fibers thus covered with the aqueous dispersion are then passed through an oven where the water evaporates, after which they pass through a die at elevated temperatures (typically above 370° C.) to melt the stabilized polyether ketone ketone (PEKK) polymer and the fibers It may be possible to accurately coat the After cooling, a tape or pre-impregnated strip is obtained, which may then be used by assembling and/or superimposing to remelt it and form a composite.
- elevated temperatures typically above 370° C.
- the main advantage of the phosphate salt is that even when heated to very high temperatures (eg, above 350° C.), it does not release volatile organic compounds and simply loses water in the form of vapor.
- phosphate salts do not pose any environmental and/or health risks, and porosity that can interfere with the coating of fibers or can lead to the appearance of defects in the final manufactured article, which can subsequently lead to deterioration of mechanical properties. may not be created.
- polyaryl ether ketone (PAEK) in the form of pellets or powder is converted to a temperature of a glass transition temperature (Tg) to a melting point (Tm) in an inert gas atmosphere.
- Tg glass transition temperature
- Tm melting point
- the crystallinity of the polyaryl ether ketone (PAEK) may be increased.
- the crystallinity of polyaryl ether ketone (PAEK) produced by adjusting the temperature, time, and flow rate of the supplied inert gas of the heat treatment may be controlled.
- PAEK polyaryl ether ketone
Abstract
Description
Claims (20)
- 무정형 또는 5% 이하의 결정화도를 갖는 펠렛 또는 분말 형태의 폴리아릴에테르케톤(PAEK)을 준비하는 단계; 및상기 준비된 폴리아릴에테르케톤(PAEK)을 비활성 기체 분위기에서 유리전이온도(Tg) 내지 녹는점(Tm)의 온도로 열처리시키는 단계;를 포함하는 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 폴리아릴에테르케톤(PAEK)은 폴리에테르케톤케톤(PEKK), 폴리에테르에테르케톤(PEEK), 폴리에테르에테르케톤케톤(PEEKK), 폴레에테르케톤에테르케톤케톤(PEKEKK), 폴리에테르에테르에테르케톤(PEEEK), 폴리에테르디페닐에테르케톤(PEDEK) 및 이들의 조합들로 이루어진 군으로부터 선택되는 고분자인 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 폴리아릴에테르케톤(PAEK)은 T:I 이성질체 비율이 50:50 내지 90:10인 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 폴리아릴에테르케톤(PAEK)은 T:I 이성질체 비율이 70:30인 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 펠렛 또는 분말 형태의 폴리아릴에테르케톤(PAEK)은,1 mm 내지 10 mm의 직경 및 1 mm 내지 10 mm의 길이를 가지는 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 무정형 또는 5% 이하의 결정화도를 갖는 폴리아릴에테르케톤(PAEK)은 160℃ 내지 300℃의 온도에서 열처리하여 제조되는 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 폴리아릴에테르케톤(PAEK)의 열처리는 150℃ 내지 340℃의 온도에서 수행되는 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 폴리아릴에테르케톤(PAEK)의 열처리는 160℃ 내지 280℃의 온도에서 수행되는 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 폴리아릴에테르케톤(PAEK)의 열처리는 160℃ 내지 250℃의 온도에서 수행되는 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 폴리아릴에테르케톤(PAEK)의 열처리는 10 분 이상 수행되는 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 폴리아릴에테르케톤(PAEK)의 열처리는 10 분 내지 60 분 동안 수행되는 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 폴리아릴에테르케톤(PAEK)의 열처리는 펠렛 또는 분말 형태의 폴리아릴에테르케톤(PAEK)을 교반시키며 수행되는 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 폴리아릴에테르케톤(PAEK)의 열처리는 펠렛 또는 분말 형태의 폴리아릴에테르케톤(PAEK)을 진동시키는 진동이송기(spiral elevator)를 이용하여 수행되는 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 비활성 기체는 연속적으로 상기 폴리아릴에테르케톤(PAEK)에 공급되는 것이고,상기 비활성 기체의 공급 유량은 10 mL/min 이상인 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제14항에 있어서,상기 비활성 기체의 공급 유량은 20 mL/min 내지 80 mL/min인 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항에 있어서,상기 준비된 폴리아릴에테르케톤(PAEK) 및 열처리시킨 폴리아릴에테르케톤(PAEK)의 색차(△)는 1.8 미만인 것인 폴리아릴에테르케톤(PAEK)의 결정화 방법.
- 제1항의 결정화 방법을 통해 제조된 결정성 폴리아릴에테르케톤(PAEK).
- 제17항에 있어서,상기 제조된 결정성 폴리아릴에테르케톤(PAEK)의 결정화도는 20% 이상인 것인 결정성 폴리아릴에테르케톤(PAEK).
- 제17항에 있어서,상기 제조된 결정성 폴리아릴에테르케톤(PAEK)의 결정화도는 30% 내지 35%인 것인 결정성 폴리아릴에테르케톤(PAEK).
- 제1항의 결정화 방법을 통해 제조된 결정성 폴리아릴에테르케톤(PAEK)을 사용하여, 레이저 소결, 용융 적층 모델링 (fused deposition modeling), 성형, 사출 성형, 압출, 열성형, 회전 성형, 압축 성형, 컴파운딩 또는 함침으로부터 선택되는 기법에 의해 제조된 물품.
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