KR20040028533A - 폴리프로필렌계 수지 중공형상 발포 성형체 및 이의제조방법 - Google Patents
폴리프로필렌계 수지 중공형상 발포 성형체 및 이의제조방법 Download PDFInfo
- Publication number
- KR20040028533A KR20040028533A KR1020030066983A KR20030066983A KR20040028533A KR 20040028533 A KR20040028533 A KR 20040028533A KR 1020030066983 A KR1020030066983 A KR 1020030066983A KR 20030066983 A KR20030066983 A KR 20030066983A KR 20040028533 A KR20040028533 A KR 20040028533A
- Authority
- KR
- South Korea
- Prior art keywords
- resin
- polypropylene resin
- foam
- weight
- polypropylene
- Prior art date
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 399
- 239000011347 resin Substances 0.000 title claims abstract description 399
- -1 polypropylene Polymers 0.000 title claims abstract description 200
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 188
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 187
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000013518 molded foam Substances 0.000 title claims description 11
- 238000000034 method Methods 0.000 title description 22
- 239000006260 foam Substances 0.000 claims abstract description 194
- 239000004088 foaming agent Substances 0.000 claims abstract description 41
- 239000000155 melt Substances 0.000 claims description 85
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 58
- 239000004604 Blowing Agent Substances 0.000 claims description 44
- 239000001569 carbon dioxide Substances 0.000 claims description 29
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 29
- 229920005673 polypropylene based resin Polymers 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 19
- 238000000465 moulding Methods 0.000 claims description 15
- 238000007664 blowing Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 claims description 5
- 238000005187 foaming Methods 0.000 abstract description 37
- 238000002844 melting Methods 0.000 abstract description 26
- 230000008018 melting Effects 0.000 abstract description 24
- 239000011342 resin composition Substances 0.000 abstract description 8
- 230000004907 flux Effects 0.000 abstract 4
- 239000010410 layer Substances 0.000 description 120
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 36
- 239000001282 iso-butane Substances 0.000 description 18
- 238000013329 compounding Methods 0.000 description 17
- 229920001577 copolymer Polymers 0.000 description 15
- 239000002994 raw material Substances 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 14
- 239000007789 gas Substances 0.000 description 14
- 230000037303 wrinkles Effects 0.000 description 13
- 238000001125 extrusion Methods 0.000 description 12
- 238000002156 mixing Methods 0.000 description 11
- 238000009413 insulation Methods 0.000 description 10
- 238000004804 winding Methods 0.000 description 10
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- 239000004711 α-olefin Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 238000002347 injection Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 238000004898 kneading Methods 0.000 description 6
- 239000004620 low density foam Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 5
- 239000004793 Polystyrene Substances 0.000 description 5
- 239000003570 air Substances 0.000 description 5
- 238000000071 blow moulding Methods 0.000 description 5
- 238000010097 foam moulding Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229920002223 polystyrene Polymers 0.000 description 5
- 229920005990 polystyrene resin Polymers 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 239000004594 Masterbatch (MB) Substances 0.000 description 4
- 238000007334 copolymerization reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 239000001273 butane Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002666 chemical blowing agent Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000012760 heat stabilizer Substances 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920001955 polyphenylene ether Polymers 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 229920001384 propylene homopolymer Polymers 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 1
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- JQXYBDVZAUEPDL-UHFFFAOYSA-N 2-methylidene-5-phenylpent-4-enoic acid Chemical compound OC(=O)C(=C)CC=CC1=CC=CC=C1 JQXYBDVZAUEPDL-UHFFFAOYSA-N 0.000 description 1
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- XOBKSJJDNFUZPF-UHFFFAOYSA-N Methoxyethane Chemical compound CCOC XOBKSJJDNFUZPF-UHFFFAOYSA-N 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- NEHMKBQYUWJMIP-NJFSPNSNSA-N chloro(114C)methane Chemical compound [14CH3]Cl NEHMKBQYUWJMIP-NJFSPNSNSA-N 0.000 description 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229960003750 ethyl chloride Drugs 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 229920005669 high impact polystyrene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000004797 high-impact polystyrene Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 1
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 235000011083 sodium citrates Nutrition 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/06—Making multilayered articles
-
- 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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
-
- 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
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
- B29C49/041—Extrusion blow-moulding using an accumulator head
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
Description
원료및배합량(중량%) | 형상 | 발포제(㏖/ ㎏) | 용융온도(℃) | 토출속도( ㎏/hrㆍ㎠) | 발포 성형체의 물성 | 외관 | ||||||
발포층밀도(g/㎤) | 두께( ㎜) | 평균기포직경( ㎜) | 독립기포율(%) | 용융장력(mN) | ||||||||
실시예1 | (a)/(b)=65/35 | 덕트 | 단층 | i-B(0.34) | 167 | 64 | 0.16 | 5.0 | 1.0 | 56 | 48 | O |
실시예2 | (a)/(b)=30/70 | i-B(0.34) | 172 | 72 | 0.18 | 5.0 | 0.9 | 32 | 32 | O | ||
실시예3 | (a)/(b)=65/35 | CO2(0.31) | 166 | 70 | 0.15 | 5.0 | 0.5 | 65 | 46 | O | ||
실시예4 | (a)/(b)=20/80 | i-B(0.34) | 172 | 75 | 0.22 | 5.0 | 0.9 | 18 | 30 | O | ||
실시예5 | (a)/(b)=20/80 | 다층 | CO2(0.31) | 172 | 80 | 0.20 | 4.0 | 0.4 | 36 | 29 | O | |
비교예1 | (a)/(b)=85/15 | 덕트 | 단층 | i-B(0.34) | 167 | 62 | 0.16 | 5.0 | 1.0 | 68 | 60 | O |
비교예2 | (a)/(b)=15/85 | i-B(0.34) | 168 | 78 | - | - | - | - | - | - | ||
(a)수지 : PF814 (MT : 200 mN, MFR : 3 g/10분)(b)수지 : J-700GP (MT : 4 mN, MFR : 9 g/10분) |
원료및배합량(중량%) | 형상 | 발포제(㏖/ ㎏) | 용융온도(℃) | 토출속도( ㎏/hrㆍ㎠) | 발포 성형체의 물성 | 외관 | ||||||
발포층밀도(g/㎤) | 두께(㎜) | 평균기포직경(㎜) | 독립기포율(%) | 용융장력(mN) | ||||||||
실시예6 | (c)/(b-1)=70/30 | 덕트 | 단층 | i-B(0.31) | 167 | 70 | 0.20 | 5.0 | 0.9 | 61 | 30 | O |
실시예7 | (c)/(b-1)=30/70 | i-B(0.31) | 168 | 72 | 0.24 | 5.0 | 1.0 | 30 | 17 | O | ||
실시예8 | (c)/(b-2)=30/70 | i-B(0.31) | 172 | 72 | 0.23 | 5.0 | 0.9 | 5 | 26 | O | ||
비교예3 | (c)/(b-1)=20/80 | 덕트 | 단층 | i-B(0.31) | 174 | 76 | - | - | - | - | - | - |
(c)수지 : 실시예 1 의 회수원료 (MT : 45 mN, MFR : 7 g/10분)(b-1)수지 : J-700GP (MT : 4 mN, MFR : 9 g/10분)(b-2)수지 : K1014 (MT : 14 mN, MFR : 4.7 g/10분) |
원료및 배합량(중량%) | 형상 | 발포제(㏖/㎏) | 용융온도(℃) | 토출속도(㎏/hrㆍ㎠) | 발포 성형체의 물성 | 외관 | ||||||
발포층밀도(g/㎤) | 두께(㎜) | 평균기포직경(㎜) | 독립기포율(%) | 용융장력(mN) | ||||||||
실시예9 | (a)/(b)/(c)=30/30/40 | 덕트 | 단층 | i-B(0.31) | 171 | 75 | 0.20 | 5.0 | 0.8 | 80 | 42 | 0 |
실시예10 | (a)/(b)/(c)=15/75/10 | i-B(0.31) | 172 | 78 | 0.21 | 5.0 | 0.9 | 50 | 29 | O | ||
실시예11 | (a)/(b)/(c)=1/30/60 | i-B(0.31) | 171 | 76 | 0.20 | 5.0 | 0.9 | 70 | 37 | O | ||
비교예4 | (a)/(b)/(c)=5/90/5 | 덕트 | 단층 | i-B(0.31) | 174 | 80 | - | - | - | - | - | - |
비교예5 | (a)/(b)/(c)=70/10/20 | i-B(0.31) | 170 | 72 | 0.19 | 5.0 | 0.9 | 55 | 55 | O | ||
(a)수지 : PF814 (MT : 200 mN, MFR : 3 g/10분)(b)수지 : J-700GP (MT : 4 mN, MFR : 9 g/10분)(c)수지 : 실시예 1 의 회수원료 (MT : 45 mN, MFR : 7 g/10분) |
Claims (7)
- 연화상태에 있는 통형상 발포체를 금형 내에 위치시켜 성형하여 이루어지는, 폴리프로필렌계 수지 발포층을 갖는 중공형상 발포 성형체로서, 이 발포층을 형성하고 있는 폴리프로필렌계 수지의 230℃ 에서의 용융 장력이 10 mN 이상 49 mN 미만이고, 이 발포층의 외관 밀도가 0.3g/㎤ 이하인 것을 특징으로 하는 폴리프로필렌계 수지 중공형상 발포 성형체.
- 제 1 항에 있어서, 발포층의 외측 및/또는 내측에 수지층을 갖는 것을 특징으로 하는 폴리프로필렌계 수지 중공형상 발포 성형체.
- 제 1 항 또는 제 2 항에 있어서, 중공형상 발포 성형체가, 통형상 발포체 내부에 기체를 불어넣음으로써 성형하여 이루어지는 것을 특징으로 하는 폴리프로필렌계 수지 중공형상 발포 성형체.
- 기재 수지에 발포제를 함유시킨 발포성 용융 수지를 다이로부터 압출함으로써 발포층을 갖는 통형상 발포체를 형성한 후, 연화상태에 있는 이 통형상 발포체를 금형 내에 위치시켜 중공형상 발포 성형체를 얻는 방법으로, 기재 수지가 이하의 (i), (ii), (iii) 및 (iv) 에서 선택되는 하나인 것을 특징으로 하는 폴리프로필렌계 수지 중공형상 발포 성형체의 제조방법:(i) 용융 장력이 98 mN 이상 또한 용융유량이 0.5∼15 g/10분인 폴리프로필렌계 수지 (a) 20 중량% 이상 70중량% 미만과, 용융 장력이 30 mN 미만 (단, 0 을 포함하지 않음) 이고 또한 용융유량이 2∼30 g/10분인 폴리프로필렌계 수지 (b) 30 중량% 를 초과하고 80 중량% 이하로 이루어진다 ((a) 와 (b) 의 합계량이 100 중량% 임),(ii) 용융 장력이 30 mN 이상 98 mN 미만이고 또한 용융유량이 2∼15 g/10분인 폴리프로필렌계 수지 (c) 30∼70중량% 와, 용융 장력이 30 mN 미만 (단, 0 을 포함하지 않음) 이고 또한 용융유량이 2∼30 g/10분인 폴리프로필렌계 수지 (b) 30∼70 중량% 이하로 이루어진다 ((c) 와 (b) 의 합계량이 100 중량% 임),(iii) 용융 장력이 98 mN 이상 또한 용융유량이 0.5∼15 g/10분인 폴리프로필렌계 수지 (a) 20 중량% 이상 70중량% 미만과, 용융 장력이 30 mN 이상 98 mN 미만이고 또한 용융유량이 2∼15 g/10분인 폴리프로필렌계 수지 (c) 30 중량% 를 초과하고 80 중량% 이하로 이루어진다 ((a) 와 (c) 의 합계량이 100 중량% 임), 및(iv) 용융 장력이 98 mN 이상 또한 용융유량이 0.5∼15 g/10분인 폴리프로필렌계 수지 (a) 와, 용융 장력이 30 mN 미만 (단, 0 을 포함하지 않음) 이고 또한 용융유량이 2∼30 g/10분인 폴리프로필렌계 수지 (b) 와, 용융 장력이 30 mN 이상 98 mN 미만이고 또한 용융유량이 2∼15 g/10분인 폴리프로필렌계 수지 (c) 로 이루어지고, (a) 가 5∼65 중량%, (b) 가 30∼78 중량%, 및 (c) 가 5∼65 중량% (단, (a), (b) 및 (c) 의 합계량이 100 중량% 임) 이고, 또한 정삼각형의 상측 정점에 이 폴리프로필렌계 수지 (a) 100 중량%, 좌하측 정점에 이 폴리프로필렌계 수지(b) 100 중량%, 우하측 정점에 이 폴리프로필렌계 수지 (c) 100 중량% 를 그어 이루어지는 삼각성분 도표에 있어서, 이 폴리프로필렌계 수지 (a) 성분을 x 중량%, 이 폴리프로필렌계 수지 (b) 성분을 y 중량%, 이 폴리프로필렌계 수지 (c) 성분을 z 중량% 로 하여 나타내는 점 (x, y, z) 로 하는 성분좌표에 나타나는 점 A (17, 78, 5), B (5, 72, 23), C (5, 30, 65), D (65, 30, 5) 로 표시되는 4점을 직선으로 연결하여 그려지는 사각형 A, B, C, D 의 범위 내에 있는 성분 조성으로 이루어진다 (단, 사각형의 선 상도 포함함).
- 제 4 항에 있어서, 통형상 발포체가, 발포제를 함유하는 발포성 용융 수지와 발포제를 함유하지 않은 비발포성 용융 수지를 공압출함으로써 얻어진 발포층의 외측 및/또는 내측에 수지층을 갖는 다층 통형상 발포체인 것을 특징으로 하는 폴리프로필렌계 수지 중공형상 발포 성형체의 제조방법.
- 제 4 항 또는 제 5 항에 있어서, 금형 내에 위치시켜 통형상 발포체 내부에 기체를 불어넣음으로써 중공형상 발포 성형체를 얻는 것을 특징으로 하는 폴리프로필렌계 수지 중공형상 발포 성형체의 제조방법.
- 제 4 항 내지 제 6 항 중 어느 한 항에 있어서, 발포제가, 이산화탄소를 함유하는 물리 발포제인 것을 특징으로 하는 폴리프로필렌계 수지 중공형상 발포 성형체의 제조방법.
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EP (1) | EP1403027B1 (ko) |
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EP1403027B1 (en) | 2008-07-16 |
US20060051543A1 (en) | 2006-03-09 |
US7014801B2 (en) | 2006-03-21 |
EP1403027A2 (en) | 2004-03-31 |
ATE401188T1 (de) | 2008-08-15 |
JP2004122488A (ja) | 2004-04-22 |
DE60322159D1 (de) | 2008-08-28 |
JP4257826B2 (ja) | 2009-04-22 |
US20040062885A1 (en) | 2004-04-01 |
EP1403027A3 (en) | 2005-03-23 |
KR100978771B1 (ko) | 2010-08-30 |
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