WO2015182862A1 - 고분자 조성물, 성형품 및 그 제조 방법 - Google Patents
고분자 조성물, 성형품 및 그 제조 방법 Download PDFInfo
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- WO2015182862A1 WO2015182862A1 PCT/KR2015/002995 KR2015002995W WO2015182862A1 WO 2015182862 A1 WO2015182862 A1 WO 2015182862A1 KR 2015002995 W KR2015002995 W KR 2015002995W WO 2015182862 A1 WO2015182862 A1 WO 2015182862A1
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Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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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
Definitions
- the invention relates to a polymer composition, a molded article, and a production method thereof, and more particularly, to an environment-friendly flame retardant polymer composition, a molded article, and a production method thereof.
- PCM post consumer material
- PCR post consumer resin
- the present invention is to solve the above problems and to provide a polymer composition, a molded article and a manufacturing method comprising a PCM (Post Consumer Materials) resin and a bio-based resin as an environmentally friendly material.
- PCM Post Consumer Materials
- the present invention provides a polymer resin, a molded article, and a method of manufacturing the same further comprising a thermoplastic resin and a core-shell elastomer including a polycarbonate to supplement physical properties of an environmentally friendly material.
- a polymer composition includes a thermoplastic resin including polycarbonate, a post consumer materials (PCM) resin, a bio-based resin, and a core-shell elastomer. Elastomer).
- a thermoplastic resin including polycarbonate, a post consumer materials (PCM) resin, a bio-based resin, and a core-shell elastomer. Elastomer).
- Bio-based resins are also selected from the group comprising polycyclohexylene dimethylene terephthalate glycol (PCTG, poly (cyclohexylene dimethylene terephthalate), glycol) and polyethylene terephthalate glycol (PETG, poly (ethylene terephthalate), glycol) It may include at least one.
- PCTG polycyclohexylene dimethylene terephthalate glycol
- PETG polyethylene terephthalate glycol
- the PCM resin may comprise PCM polycarbonate.
- the core-shell elastomer at least one selected from the group comprising butadiene and butylacrylate-styrene copolymer in the core (core), PMMA in the shell (shell) (polymethylmethacrylate).
- thermoplastic resin may include at least one selected from the group consisting of low molecular weight polycarbonate and high molecular weight polycarbonate.
- the high molecular weight polycarbonate includes a melt index (300 °C, 1.2kg) is 45 g / 10min or less
- the low molecular weight polycarbonate has a melt index (300 °C, 1.2kg) is more than 45 g / 10min It may include.
- thermoplastic resin may also comprise 45 to 60 weight percent of thermoplastic resin, 1 to 20 weight percent of PCM (Post Consumer Materials) resin, 1 to 20 weight percent of bio-based resin and 5 to 15 weight percent of elastomer in core-shell form.
- PCM Post Consumer Materials
- thermoplastic resin may include 45 to 55 weight percent of high molecular weight polycarbonate and 0 to 5 weight percent of low molecular weight polycarbonate.
- the elongation ( , elongation) may be greater than or equal to 110%.
- the UL94 (UnderWriter's Labortory) standard may include a V2 or more.
- melt index (300 °C, 1.2kg) may include more than 15 g / 10min.
- the Izod Notched Impact Strength may include 60 kgfcm / cm or more.
- the heat distortion temperature may include more than 100 °C.
- it may further include an additive.
- the additive may include at least one selected from the group consisting of wax, wax type master batch, thermal stabilizer, UV stabilizer, antioxidant stabilizer, deodorant and surface stabilizer.
- a method of manufacturing a molded article according to an embodiment is a thermoplastic resin including polycarbonate, a post consumer materials (PCM) resin, a bio-based resin, and a core-shell type elastomer (Core-Shell type Elastomer) from an extruder. And a step of preparing a polymer composition comprising a) and injection molding the polymer composition into an injection molding apparatus.
- the preparing of the polymer composition may include a composition including a thermoplastic resin including polycarbonate, a post consumer materials (PCM) resin, a bio-based resin, and a core-shell type elastomer. It may include extruding.
- a thermoplastic resin including polycarbonate, a post consumer materials (PCM) resin, a bio-based resin, and a core-shell type elastomer. It may include extruding.
- extruding the composition may include melting the composition and applying shear stress to the composition to disperse the composition.
- the extruder may also include at least one extruder selected from the group comprising a continuous flow single screw extruder and a continuous flow twin screw extruder.
- the molded article according to an embodiment of the present invention includes a polymer including a thermoplastic resin including polycarbonate, a post consumer materials (PCM) resin, a bio-based resin, and a core-shell type elastomer. Composition.
- It may have a film, sheet, pellet, or fiber form.
- the electronic product includes a smart device
- the internal material includes a rear cover of the smart device
- the external material includes at least one selected from the group including a front cover, a front decor, a home key, a side key, and a battery cover of the smart device. can do.
- the electronic products include a display device, a computer, a tablet PC, a printer, a multifunction printer, a refrigerator, a washing machine, an air conditioner, a camera, an e-book, an e-paper, a 3D glasses and a charger. It may include at least one selected from the group.
- the molded article and the manufacturing method according to the disclosed invention configured as described above can be expected the following effects.
- eco-friendly materials can be implemented to meet global eco-friendly policies.
- thin-film injection molding is possible to meet consumer's need for thinning the product.
- the flame retardancy can be provided to have a phoneme function in the event of a fire.
- the core-shell elastomer may have excellent impact stiffness.
- FIG. 1 is an exploded perspective view of a smart device according to an example of a molded article.
- FIG. 2 is a cross-sectional view of the smart device of FIG. 1 taken along the AA ′ direction.
- FIG 3 is a perspective view of a display device according to an example of a molded product.
- FIG. 4 is a view showing the structure of an extruder for manufacturing a polymer composition according to an embodiment.
- FIG. 5 is a view showing the structure of an injection molding apparatus for manufacturing a molded article according to an embodiment.
- FIG. 6 is a view showing the results of the fall test for the battery cover of the smart device manufactured from the specimens of Comparative Examples 2 to 4 as a raw material.
- FIG. 7 is a view showing the results of a fall test on the rear cover of a smart device manufactured from the specimens of Comparative Examples 2 to 4 as raw materials.
- FIG 8 is a view showing the results of the fall test on the battery cover of the smart device manufactured from the specimens of Examples 1 to 4 as a raw material.
- FIG. 9 is a view showing the results of the fall test on the rear cover of the smart device manufactured from the specimens of Examples 1 to 4 as a raw material.
- the polymer composition according to an embodiment includes a thermoplastic resin including polycarbonate, a post consumer materials (PCM) resin, a bio-based resin, and a core-shell type elastomer.
- a thermoplastic resin including polycarbonate, a post consumer materials (PCM) resin, a bio-based resin, and a core-shell type elastomer.
- thermoplastic resin is a resin that can be deformed by applying heat again after being molded by applying heat
- polymer composition according to an embodiment may include 45 to 60 wt% thermoplastic resin.
- Thermoplastics may comprise polycarbonate.
- the polycarbonate may include at least one selected from the group consisting of low molecular weight polycarbonates and high molecular weight polycarbonates, and may comprise 0 to 5 weight percent of low molecular weight polycarbonates and 45 to 55 weight percent of high molecular weight polycarbonates. It may include.
- High molecular weight polycarbonate may include a melt index (300 °C, 1.2kg) is less than 45 g / 10min, low molecular weight polycarbonate has a melt index (300 °C, 1.2kg) is more than 45 g / 10min It may include.
- Polycarbonate resin is a commercialized thermoplastic resin, bisphenol A can be synthesized as a raw material.
- Polycarbonate resin has a transparent and excellent mechanical properties, thereby imparting impact resistance to a molded article molded of the polymer composition according to an embodiment.
- the polycarbonate resin has self-extinguishing and may impart heat resistance and fire retardant to a molded article formed of the polymer composition according to an embodiment.
- PCM Post Consumer Materials
- PCR Post Consumer Resin
- the PCM resin is one of thermoplastic resins based on recycled materials, and the polymer composition according to an embodiment may include 1 to 20 wt% of PCM resin.
- PCM resins can include PCM Polycarbonate (Poly Consumer Materials Polycarbonate).
- PCM polycarbonate can impart environmentally friendly properties to the polymer composition by using PCM polycarbonate as one of the recycled material of the polycarbonate.
- Bio-based resins are biodegradable polymer resins, which are general-purpose polymer resins that can be used throughout industries such as medicine, food, disposable products, and coatings.
- the bio-based resin may include one extracted from industrial corn, and the polymer composition according to one embodiment may include 1 to 20 weight percent of the bio-based resin.
- the bio-based resin is at least one selected from the group consisting of polycyclohexylene dimethylene terephthalate glycol (PCTG, poly (cyclohexylene dimethylene terephthalate), glycol) and polyethylene terephthalate glycol (PETG, poly (ethylene terephthalate), glycol) It may include.
- PCTG polycyclohexylene dimethylene terephthalate glycol
- PETG polyethylene terephthalate glycol
- the bio-based resin may replace a low molecular weight polycarbonate by playing a role of preventing the viscosity of the polymer composition from being excessively increased, and at the same time, it may impart environmentally friendly characteristics to the polymer composition and the molded article including the same according to an embodiment. have.
- Elastomers are polymeric materials that exhibit rubber elasticity at room temperature and are capable of rapidly reversing hundreds of percent of deformation.
- the polymer composition according to an embodiment may include a core-shell type elastomer.
- the core layer of the core-shell elastomer may include at least one component selected from the group including butadiene and butylacrylate-styrene copolymers, and the shell layer may include polymethylmethacrylate (PMMA). Can be.
- PMMA polymethylmethacrylate
- the core-shell elastomer formed as described above may impart impact resistance to the polymer composition and a molded article including the same. More specifically, the flexibility or ductility of polycarbonate resins tends to be increased when using bio-based materials or PCM resins, and thus, core-shell elastomers are added to prevent tensile strength test, Izod notch test, or reliability fall test, which will be described later. Reliability can be secured.
- the core-shell type elastomer may be included in the range of 5 to 15 weight percent in the polymer composition according to one embodiment.
- the core-shell type elastomer according to one embodiment is contained in the polymer composition too much, the dispersibility of the elastomer in the polymer composition may be deteriorated, and the effect of improving impact resistance may be lowered. There is a risk of deterioration. Accordingly, it is preferable to adjust the core-shell type elastomer to contain an appropriate amount in the polymer composition according to the embodiment.
- the polymer composition according to an embodiment configured as described above has elongation ( , elongation) may be greater than or equal to 110%.
- the polymer composition according to an embodiment may include that the UL 94 standard is V2 or more.
- the UL94 standard is an international flame retardancy test standard, and the polymer composition according to the embodiment may secure flame retardance of V2 or higher by using polycarbonate as a thermoplastic resin.
- the polymer composition according to the embodiment may include a heat distortion temperature (HDT, Heat Distortion Temperature) is 100 °C or more.
- the polymer composition according to an embodiment may secure reliability for heat deformation temperature by using polycarbonate as a thermoplastic resin.
- the polymer composition according to an embodiment may include a melt index (300 ° C., 1.2 kg) of 15 g / 10 min or more.
- Melt index is a flow rate when the melt is extruded from the piston under a predetermined condition, the index indicating the ease of flow of the melt. The better the melt index, the easier the molding into a thin film form may be.
- the polymer composition according to an embodiment may secure excellent melt flowability by using a PCM resin or a low molecular weight polycarbonate.
- the polymer composition according to an embodiment may include an Izod Notched Impact Strength of 60 kgfcm / cm or more.
- Izod notch test is one of the test methods for testing the impact strength
- the polymer composition according to an embodiment can secure the impact strength for the Izod notch test by using a core-shell type elastomer.
- the polymer composition according to an embodiment may further include an additive, and the additive may be a wax, a wax type master batch, a heat stabilizer, a UV stabilizer, an antioxidant stabilizer, a deodorant and a surface stabilizer. It may include at least one selected from the group containing.
- Wax is a kind of semi-solid lubricating oil and may serve to reduce the heat generated by the incorporation of the material during the incorporation of the material during the manufacture of the molded article.
- the processing temperature can be adjusted by adding wax.
- the wax type masterbatch is a wax blended with a rubber raw material. When the wax is added alone, the wax may not be evenly mixed in the composition. Thus, wax type masterbatches can be used to evenly distribute the wax in the composition.
- Thermal stabilizers, UV stabilizers, and antioxidant stabilizers are known to degrade resins ( Is a chemical added to prevent or inhibit).
- the polymer composition according to an embodiment includes a plastic component such as polycarbonate, which is deteriorated under the influence of heat, light, or oxygen, and thus it is necessary to prevent it.
- the polymer composition according to one embodiment is added to the thermal stabilizer, UV stabilizer or antioxidant stabilizer as necessary to deteriorate the resin ( ) Can be prevented or suppressed.
- Deodorant is an additive that is added to minimize gas generation when manufacturing an injection molded product using a polymer composition, and a deodorant may be added to ensure reliability when depositing a coating component in a polymer composition or a molded article according to an embodiment.
- the surface stabilizer is an additive added to form a smooth surface when the molded article is manufactured using the polymer composition.
- the polymer composition according to an embodiment may include a surface stabilizer.
- the polymer composition according to the embodiment has been described.
- the type and composition ratio of the polymer composition are not limited to the above examples and should be broadly understood as a concept including a change within a range easily understood by those skilled in the art.
- the molded article according to an embodiment includes a polymer composition including a thermoplastic resin including polycarbonate, a post consumer materials (PCM) resin, a bio-based resin, and a core-shell type elastomer. .
- a polymer composition including a thermoplastic resin including polycarbonate, a post consumer materials (PCM) resin, a bio-based resin, and a core-shell type elastomer.
- the molded article may be molded into a film, sheet, pellet, or fiber, and may include interior materials or exterior materials of an electronic product.
- Electronics include smart devices, display devices, computers, monitors, tablet PCs, printers, multifunction devices, refrigerators, washing machines, air conditioners, cameras, e-books, e-paper, 3d glasses and chargers. It may include at least one selected from the group.
- a smart device will be described as an example of a molded article.
- FIG. 1 is an exploded perspective view of a smart device according to an example of a molded article
- FIG. 2 is a cross-sectional view of the smart device 100 of FIG.
- the smart device 100 includes a display module 115, a window glass 120 placed on the front surface of the display module 115, and a frame 125 placed on the rear surface of the display module 115. And a front cover 130 surrounding the edges of the display module 115 and the window glass 120, a front deco 135 surrounding the outer circumferential surface of the front cover 130, and a rear surface of the frame 125.
- the battery 140 may include a rear cover 145 disposed on a rear surface of the frame, and a battery cover 150 covering the rear cover 145 and the battery 140.
- a battery hole into which the battery 140 is inserted may be formed inside the rear cover 145. Therefore, the battery 140 may be seated on the rear surface of the frame through the battery hole.
- the battery seating part 155 may be formed in the frame, and the guide rib 160 may be surrounded by the edge of the battery seating part 155.
- the guide rib 160 defines a battery 140 mounting area, and the guide rib 160 may be surrounded along the edge of the battery hole of the rear cover 145.
- various electrical components may be mounted in the upper region of the rear cover 145, and the battery 140 may be placed in the lower region.
- the molded article according to an example includes a frame 125, a front cover 130, a front deco 135, a rear cover 145, a battery cover 150, and the like of the smart device 100 illustrated in FIGS. 1 and 2. can do.
- An example of application to the smart device 100 is not limited thereto, and the molded article according to an embodiment may include a change within a range easily understood by a person skilled in the art, including a home key of a smart device, a button part of a smart device, and the like. Can be.
- the display device 200 will be described as an example of the molded article.
- FIG 3 is a perspective view of a display apparatus 200 according to an example of a molded product.
- the display apparatus 200 may include a main body 210 displaying an image and outputting a sound, and a stand 220 supporting the main body.
- the body 210 and the stand 220 of the display apparatus 200 may include the polymer composition described above. That is, it may be a molded article manufactured by injection molding the aforementioned polymer composition.
- An example of application to the display apparatus 200 is not limited thereto, and the molded article according to the exemplary embodiment may include a change within a range easily understood by a person skilled in the art, including an interior of the display apparatus 200.
- FIG. 4 is a view showing the structure of an extruder 300 according to an embodiment
- Figure 5 is a view showing the structure of an injection molding apparatus 400 according to an embodiment.
- the extruder 300 includes an extruder hopper 310 for inputting raw materials, a shaft 320 rotatably installed, and an extruder cylinder 330 surrounding the shaft. ), An extruder driver 340a, 340b, 340c for rotating the shaft, an extruder heater 350 for heating the inside of the extruder cylinder 330, a discharge die 360 for discharging the polymer composition, It may include an extruder control unit (not shown) for controlling the heating temperature of the extruder heater 350.
- the extruder 300 may be a continuous flow single screw extruder as shown in FIG. 4, but is not limited thereto. A continuous flow twin screw extruder may be used.
- the extruder drives 340a, 340b, and 340c are coupled to the motor 340a for driving the shaft 320 and the motor 340a, and a coupling part for transmitting the power of the motor 340a to the gear 340c. 340b and a gear unit 340c which rotates the shaft 320 by receiving the power of the motor 340a.
- the shaft 320 driven by the extruder drives 340a, 340b, 340c can rotate in a direction (eg clockwise) to apply shear stress to the molten mixture and at a speed within the range of 100 to 400 rpm. Can rotate
- the extruder heater 350 may be configured in plural from the supply region to the discharge region to adjust the temperature inside the extruder cylinder 330. That is, the temperature inside the extruder cylinder 330 may be divided into a plurality of zones so that the temperature may be adjusted for each zone, and the temperature of each zone may be appropriately adjusted according to the raw materials to be processed.
- the injection molding apparatus 400 may include an injection molding apparatus hopper 410 through which raw materials are introduced, and a barrel 420 containing raw materials introduced through the injection molding apparatus hopper 410.
- the screw 430 is installed to move and rotate back and forth inside the barrel 420, the injection molding machine motor 440 for transmitting a rotational force to the screw 430, and the screw 430 is connected to the screw
- the injection molding machine cylinder unit 450 for linearly moving the 430, the injection molding machine heater 460 installed on the outer circumferential surface of the barrel 420 to heat the raw material contained in the barrel 420, and the barrel 420 It may include a nozzle 465 for supplying the received synthetic resin raw material to the mold 470, and a mold 470 for receiving the raw material from the nozzle 465 to shape the molded article.
- the mold 470 may include a first mold 470a receiving a raw material and a second mold 470b which is combined with the first mold 470a to form an injection cavity 475 therein.
- the first mold 470a may be a stationary mold and the second mold 470b may be a movable mold.
- a method of manufacturing a molded article may include a thermoplastic resin including polycarbonate, a post consumer materials (PCM) resin, a bio-based resin, and a core-shell type elastomer. (Hereinafter, referred to as a raw material) may include preparing a polymer composition, and injection molding the polymer composition.
- a thermoplastic resin including polycarbonate, a post consumer materials (PCM) resin, a bio-based resin, and a core-shell type elastomer.
- the extruding of the raw materials may include premixing the raw materials using a mixer, introducing the mixed raw materials into the hopper 310 of the extruder, melting the raw materials introduced, and applying shear stress to the molten raw materials. May be applied to disperse.
- the method may further include drying the raw material discharged from the discharge die 360.
- Injection molding the polymer composition may include introducing the polymer composition into the injection molding machine hopper 410, melting the introduced polymer composition, and providing the molten polymer composition to the mold 470. Can be.
- the battery cover 150 of smart devices For the manufacture of the battery cover 150 of smart devices, first, high molecular weight polycarbonate, low molecular weight polycarbonate, PCM polycarbonate, PCTG, core-shell elastomer, wax type masterbatch, heat stabilizer, UV stabilizer and others The additive was premixed using a mixer (not shown). Since the raw material was introduced into the extruder hopper 310 shown in FIG. Thereafter, the raw material extruded in the extruder cylinder 330 and discharged from the discharge die 360 was dried under a temperature condition within the range of 90 to 100 ° C. for 3 to 4 hours to prepare a polymer composition.
- Table 1 to be described below shows the manufacturing conditions of the polymer composition as a raw material of the battery cover 150 according to an embodiment.
- the extruder cylinder 330 was divided into a plurality of zones, and the temperature was gradually adjusted for each zone. More specifically, the temperature in the extruder cylinder 330 around the extruder hopper 310 was adjusted to 245 ° C. and the temperature in the extruder cylinder 330 around the discharge die 360 was adjusted to 275 ° C.
- the polymer composition was introduced into the injection molding apparatus hopper 410 illustrated in FIG. 5, and injection molded using the battery cover mold of the smart device to manufacture the battery cover 150.
- Table 2 to be described later shows the injection conditions during the injection molding of the battery cover 150 of the smart device.
- the barrel 420 was divided into a plurality of zones to adjust the temperature step by step. More specifically, the temperature of the barrel 420 around the nozzle 465 was adjusted to 285 ° C. and the barrel temperature around the injection molding machine hopper 410 was adjusted to 260 ° C. to feed the raw material to the mold 470. In addition, the temperature of the first mold 470a, which is a stationary mold, was adjusted to 90 ° C, and the temperature of the second mold 470b, which is a movable mold, was adjusted to 110 ° C.
- the polymer composition was introduced into the injection molding apparatus hopper 410 illustrated in FIG. 5, and then injection molded using the rear cover mold of the smart device to manufacture the rear cover 145.
- Table 3 to be described later shows the injection conditions during the injection molding of the rear cover 145 of the smart device.
- the temperature of the barrel 420 around the nozzle 465 was adjusted to 295 ° C.
- the temperature of the barrel 420 around the injection molding machine hopper 410 was adjusted to 280 ° C.
- the raw material was supplied to the mold.
- the temperature of the first mold 470a which is a stationary mold, was adjusted to 80 ° C
- the temperature of the second mold 470b which is a movable mold, was adjusted to 80 ° C.
- the temperature of the mold 470 should be adjusted higher than that of the rear cover 145 of the smart device. It was confirmed. This is because the thickness of the battery cover 150 of the smart device is thinner than the thickness of the rear cover 145 of the smart device because it is necessary to adjust the temperature of the mold 470 higher in order to lower the viscosity of the raw material to be supplied.
- the temperature of the mold 470 and the barrel 420 may be adjusted differently according to the type of molded article to be molded.
- the polymer composition specimens according to Example 1 consisted of 44 weight percent of high molecular weight polycarbonate, 5 weight percent of low molecular weight polycarbonate, 20 weight percent of PCM polycarbonate, 20 weight percent of PCTG, and 6 weight of core-shell type elastomer. Percent, 5 weight percent wax type masterbatch, 0.2 phr thermal stabilizer, and 0.2 phr UV stabilizer.
- phr is defined as part per hundred of 100 weight percent of the total composition.
- the polymer composition specimens according to Example 2 consisted of 49 weight percent of high molecular weight polycarbonate, 20 weight percent of PCM polycarbonate, 20 weight percent of PCTG, 6 weight percent of core-shell type elastomer, and 5 weight percent of wax type masterbatch. And a 0.2 phr UV stabilizer.
- the polymer composition specimens according to Example 3 consisted of 45 weight percent of high molecular weight polycarbonate, 20 weight percent of PCM polycarbonate, 20 weight percent of PCTG, 10 weight percent of core-shell type elastomer, and 5 weight percent of wax type masterbatch. And a 0.2 phr UV stabilizer.
- the polymer composition specimens according to Example 4 consisted of 40 weight percent of high molecular weight polycarbonate, 20 weight percent of PCM polycarbonate, 20 weight percent of PCTG, 15 weight percent of core-shell type elastomer, and 5 weight percent of wax type masterbatch. And a 0.2 phr UV stabilizer.
- the polymer composition specimens according to Comparative Example 1 were 25 weight percent of high molecular weight polycarbonate, 30 weight percent of low molecular weight polycarbonate, 20 weight percent of PCM polycarbonate, 20 weight percent of PCTG, and 5 weight percent of wax type masterbatch. It includes, 0.2 phr thermal stabilizer, 0.2 phr UV stabilizer.
- the polymer composition specimens according to Comparative Example 2 consisted of 25 weight percent of high molecular weight polycarbonate, 25 weight percent of low molecular weight polycarbonate, 20 weight percent of PCM polycarbonate, 20 weight percent of PCTG, and 5 weight of core-shell type elastomer. Percent, 5 weight percent wax type masterbatch, 0.2 phr thermal stabilizer, 0.2 phr UV stabilizer.
- the polymer composition specimens according to Comparative Example 3 consisted of 26 weight percent of high molecular weight polycarbonate, 20 weight percent of low molecular weight polycarbonate, 20 weight percent of PCM polycarbonate, 20 weight percent of PCTG, and 8 weight of core-shell type elastomer. Percent, 6 weight percent wax type masterbatch, 0.2 phr thermal stabilizer, and 0.2 phr UV stabilizer.
- Polymer composition specimens according to Comparative Example 4 were 25.9 weight percent of high molecular weight polycarbonate, 24 weight percent of low molecular weight polycarbonate, 20 weight percent of PCM polycarbonate, 20 weight percent of PCTG, and 5 weight of core-shell type elastomer. Percent, 5 weight percent wax type masterbatch, 0.1 weight percent wax, 0.2 phr thermal stabilizer, and 0.2 phr UV stabilizer.
- Polymer composition specimens according to Comparative Example 5 were 43 weight percent of high molecular weight polycarbonate, 6 weight percent of low molecular weight polycarbonate, 20 weight percent of PCM polycarbonate, 20 weight percent of PCTG, and 6 weight of core-shell type elastomer. Percent, 5 weight percent wax type masterbatch, 0.2 phr thermal stabilizer, and 0.2 phr UV stabilizer.
- the polymer composition according to Comparative Example 6 comprises 36 weight percent of high molecular weight polycarbonate, 3 weight percent of low molecular weight polycarbonate, 20 weight percent of PCM polycarbonate, 20 weight percent of PCTG, and 16 weight percent of core-shell type elastomer. And 5 weight percent wax type masterbatch and 0.2 phr UV stabilizer.
- Table 4 summarizes the composition ratios of Examples 1 to 4 and Comparative Examples 1 to 6 described above.
- MI Melt Index
- MI Melt Index
- a weight of 500 g was dropped at a height of 50 cm to a specimen prepared from the polymer compositions of Examples 1 to 4 and Comparative Examples 1 to 6.
- Nivea Aqua Sun Spray (SPF30, PA ++) is applied to the coated surfaces of the specimens prepared from the compositions of Examples 1 to 4 and Comparative Examples 1 to 6, and the reagent-coated specimens are stored at 80 ° C / 80%. After 24 hours, the specimens were washed with water, drained and left to stand at room temperature for 4 hours, and then cut off once with a tape by cross cutting at intervals of 2 mm.
- Specimens prepared from the compositions of Examples 1-4 and Comparative Examples 1-6 are stored for 72 hours under 50 ° C./95% conditions. Take out the test sample and leave it at room temperature for 4 hours, cross-cut at 2 mm intervals and remove once with tape.
- Specimens prepared from the compositions of Examples 1 to 4 and Comparative Examples 1 to 6 are coated in the order of primer, base UV, tin (Sn), primer, midway, and top UV.
- Specimens prepared from the polymer compositions of Examples 1 to 4 and Comparative Examples 1 to 6 were stored at ⁇ 40 ° C. for 1 hour and at 85 ° C. for 1 hour. The cycle is 30 cycles and left for 4 hours at room temperature. Thereafter, the specimens are cut crosswise at 2 mm intervals and removed once with a tape.
- Comparative Example 1 shows a high flow characteristic with a MI of 54.6 g / 10cm and a flexural strength of 843 (Kgf / cm ⁇ 2), while an Izod notch impact strength of 11 kgfcm / cm is very high. It was confirmed to exhibit low impact strength. In addition, it failed in the fall test of the specimen, failed in the test results of the cosmetic test.
- FIG. 6 is a view showing the results of the fall test test for the battery cover of the smart device manufactured from the specimen of Comparative Examples 2 to 4
- Figure 7 is a rear of the smart device manufactured from the specimen of Comparative Examples 2 to 4 The figure which shows the fall test test result about a cover.
- the battery cover and the rear cover of the smart device manufactured with the compositions of Comparative Examples 2 to 4 were notched. That is, in the case of the specimen prepared in the composition of Comparative Examples 2 to 4 it was confirmed that it is difficult to derive a reliable result for the fall test.
- Comparative Example 5 is a test for examining the lower limit of the low molecular weight polycarbonate, and when the low molecular weight polycarbonate is added at 6 weight percent, the Izod notch impact strength reaches 60 kgfcm / cm, compared to Comparative Examples 1 to 4 The Izod notch impact strength was improved, but the fall test did not yield reliable results.
- Comparative Example 6 was a test for examining the upper limit of the core-shell type elastomer, and when the core-shell type elastomer was added at 16 weight percent, it was confirmed that the Izod notch impact strength had a relatively low value of 58 kgfcm / cm. Izod unnotched impact strength was also found to have a low value of 142 kgfcm / cm.
- Examples 1 to 4 low molecular weight polycarbonate was used at 5 weight percent or less, and core-shell type elastomer was used in the range of 6 to 15 weight percent.
- the Izod notched impact strength had a value within the range of 64 to 70 kgfcm / cm
- the Izod unnotched impact strength had a value within the range of 145 to 150 kgfcm / cm.
- the elongation was confirmed to have an improved value compared to Comparative Examples 1 to 6 at 110 to 204%, and satisfactory results were also found in the fall test and the cosmetic test.
- FIG 8 is a view showing the results of the fall test on the battery cover of the smart device manufactured from the specimens of Examples 1 to 4
- Figure 9 is a rear of the smart device manufactured from the specimens of Examples 1 to 4 as a raw material The figure which shows the fall test test result about a cover.
- the battery cover and the rear cover of the smart device manufactured with the compositions of Examples 1 to 4 did not have a notch as a result of the fall test, and thus it was confirmed that a reliable result was obtained for the fall test. .
- the addition of the core-shell elastomer improves defects in physical properties caused when notches are formed in the specimen.
- Izod notch impact strength and Izod unnotch impact strength are decreased, and when too little core-shell type elastomer is included, external impact cannot be sufficiently dispersed, which leads to deterioration in physical properties. It was confirmed that the amount of core-shell type elastomers that could not be achieved for improvement was properly adjusted.
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Abstract
Description
Claims (24)
- 폴리카보네이트(Polycarbonate)를 포함하는 열가소성 수지;PCM(Post Consumer Materials) 수지;바이오 기반 수지; 및코어-쉘 타입 엘라스토머(Core-Shell type Elastomer);를 포함하는 고분자 조성물.
- 제 1항에 있어서,상기 바이오 기반 수지는,폴리 사이클로헥실렌 디메틸렌 테레프탈레이트 글리콜(PCTG, poly(cyclohexylene dimethylene terephthalate),glycol) 및 폴리 에틸렌 테레프탈레이트 글리콜(PETG, poly(ethylene terephthalate),glycol)을 포함하는 군에서 선택된 적어도 하나를 포함하는 고분자 조성물.
- 제 1항에 있어서,상기 PCM 수지는,PCM 폴리카보네이트를 포함하는 고분자 조성물.
- 제 1항에 있어서,상기 코어-쉘 타입 엘라스토머는,상기 코어(core)에 부타디엔(butadiene) 및 부틸아크릴레이트-스티렌 공중합체(butylacrylate-styrene copolymer)를 포함하는 군에서 선택된 적어도 하나를 포함하고,상기 쉘(shell)에 PMMA(polymethylmethacrylate)를 포함하는 고분자 조성물.
- 제 1항에 있어서,상기 열가소성수지는,저분자량의 폴리카보네이트 및 고분자량의 폴리카보네이트를 포함하는 군에서 선택된 적어도 하나를 포함하는 고분자 조성물.
- 제 5항에 있어서,상기 고분자량의 폴리카보네이트는,용융지수(300℃, 1.2kg)가 45 g/10min 이하인 것을 포함하고,상기 고분자량의 폴리카보네이트는,용융지수(300℃, 1.2kg)가 45 g/10min 초과인 것을 포함하는 고분자 조성물.
- 제 1항에 있어서,상기 열가소성 수지 45 내지 60 중량 퍼센트,상기 PCM(Post Consumer Materials) 수지 1 내지 20 중량 퍼센트,상기 바이오 기반 수지 1 내지 20 중량 퍼센트 및상기 코어-쉘 타입 엘라스토머 5 내지 15 중량 퍼센트를 포함하는 고분자 조성물.
- 제 7항에 있어서,상기 열가소성 수지 45 내지 60 중량 퍼센트를 포함하는 것은,고분자량의 폴리카보네이트 45 내지 55 중량 퍼센트 및저분자량의 폴리카보네이트 0 내지 5 중량 퍼센트를 포함하는 고분자 조성물.
- 제 1항에 있어서,UL94(UnderWriter's Labortory) 규격이 V2 이상인 고분자 조성물.
- 제 1항에 있어서,용융지수(300℃, 1.2kg)가 15 g/10min 이상인 고분자 조성물.
- 제 1항에 있어서,아이조드 노치 충격 강도(Izod Noched Impact Strength)가 60(kgfcm/cm) 이상인 고분자 조성물.
- 제 1항에 있어서,열변형온도(HDT, Heat Distortion Temperature)가 100℃ 이상인 고분자 조성물.
- 제 1항에 있어서,첨가제;를 더 포함하는 고분자 조성물.
- 제 14항에 있어서,상기 첨가제는,왁스(wax), 왁스타입 마스터배치(wax type master batch), 열안정제, UV 안정제, 산화 방지 안정제, 소취제 및 표면안정제를 포함하는 군에서 선택된 적어도 하나를 포함하는 고분자 조성물.
- 압출기로부터 폴리카보네이트(Polycarbonate)를 포함하는 열가소성 수지, PCM(Post Consumer Materials) 수지, 바이오 기반 수지 및 코어-쉘 타입 엘라스토머(Core-Shell type Elastomer)를 포함하는 고분자 조성물을 제조하는 단계; 및상기 고분자 조성물을 사출성형장치에 투입해 사출 성형하는 단계;를 포함하는 성형품의 제조 방법.
- 제 16항에 있어서,상기 고분자 조성물을 제조하는 단계는,폴리카보네이트(Polycarbonate)를 포함하는 열가소성 수지, PCM(Post Consumer Materials) 수지, 바이오 기반 수지 및 코어-쉘 타입 엘라스토머(Core-Shell type Elastomer)를 포함하는 조성물을 압출하는 것을 포함하는 성형품의 제조 방법.
- 제 17항에 있어서,상기 조성물을 압출하는 단계는,상기 조성물을 용융하는 단계 및상기 조성물에 전단응력을 인가해 분산시키는 단계를 포함하는 성형품의 제조 방법.
- 제 16항에 있어서,상기 압출기는,연속식 단일 스크류 압출기(continuous flow single screw extruder) 및 연속식 트윈 스크류 압출기(continuous flow twin screw extruder)를 포함하는 군에서 선택된 적어도 하나의 압출기를 포함하는 성형품의 제조 방법.
- 폴리카보네이트(Polycarbonate)를 포함하는 열가소성 수지, PCM(Post Consumer Materials) 수지, 바이오 기반 수지 및 코어-쉘 형태의 엘라스토머(Core-Shell type Elastomer)를 포함하는 고분자 조성물을 포함하는 성형품.
- 제 20항에 있어서,필름(film), 시트(sheet), 펠릿(pellet) 또는 섬유(fiber) 형태를 가지는 성형품.
- 제 20항에 있어서,전자제품의 내장재(interior materials) 또는 외장재(exterior materials)를 포함하는 성형품.
- 제 22항에 있어서,상기 전자제품은 스마트 기기를 포함하고,상기 내장재는 상기 스마트 기기의 리어 커버를 포함하고,상기 외장재는 상기 스마트 기기의 프런트 커버, 프런트 데코, 홈키, 사이드 키 및 배터리 커버를 포함하는 군에서 선택된 적어도 하나를 포함하는 성형품.
- 제 20항에 있어서,상기 전자제품은,디스플레이 장치, 컴퓨터, 태블릿 PC, 프린터, 복합기, 냉장고, 세탁기, 공기조화기, 카메라, 이북(E-BOOK), 전자종이(E-Paper), 3D 안경 및 충전기를 포함하는 군에서 선택된 적어도 하나를 포함하는 성형품.
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AU2015268400A AU2015268400B2 (en) | 2014-05-26 | 2015-03-26 | Polymer composition, molded article, and method for manufacturing same |
CN201580036818.1A CN106488955B (zh) | 2014-05-26 | 2015-03-26 | 聚合物组合物、模塑制品、以及用于制造其的方法 |
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KR102681387B1 (ko) * | 2019-12-06 | 2024-07-03 | 현대자동차주식회사 | 태양전지용 상변화물질(pcm) 나노섬유 및 그 제조방법 |
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KR20140022835A (ko) * | 2011-03-23 | 2014-02-25 | 사빅 이노베이티브 플라스틱스 아이피 비.브이. | 향상된 충격 강도를 갖는 폴리카보네이트 조성물 |
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US10266696B2 (en) | 2014-05-26 | 2019-04-23 | Samsung Electronics Co., Ltd. | Polymer composition, molded article, and method for manufacturing same |
Also Published As
Publication number | Publication date |
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CA2950401A1 (en) | 2015-12-03 |
US20170190914A1 (en) | 2017-07-06 |
EP3150669A1 (en) | 2017-04-05 |
AU2015268400A1 (en) | 2016-12-15 |
KR102036891B1 (ko) | 2019-10-25 |
CN106488955B (zh) | 2018-12-04 |
US10266696B2 (en) | 2019-04-23 |
CA2950401C (en) | 2022-03-22 |
CN106488955A (zh) | 2017-03-08 |
AU2015268400B2 (en) | 2017-08-31 |
KR20150135894A (ko) | 2015-12-04 |
EP3150669A4 (en) | 2017-11-22 |
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