KR102671868B1 - Policarbonate multi-layered corrugated board having excellent heat resistance and chemically resistant - Google Patents
Policarbonate multi-layered corrugated board having excellent heat resistance and chemically resistant Download PDFInfo
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- KR102671868B1 KR102671868B1 KR1020230090033A KR20230090033A KR102671868B1 KR 102671868 B1 KR102671868 B1 KR 102671868B1 KR 1020230090033 A KR1020230090033 A KR 1020230090033A KR 20230090033 A KR20230090033 A KR 20230090033A KR 102671868 B1 KR102671868 B1 KR 102671868B1
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- South Korea
- Prior art keywords
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- parts
- resin
- glycol
- polycarbonate resin
- Prior art date
Links
- 229920005989 resin Polymers 0.000 claims abstract description 54
- 239000011347 resin Substances 0.000 claims abstract description 54
- 239000000126 substance Substances 0.000 claims abstract description 49
- 239000004431 polycarbonate resin Substances 0.000 claims abstract description 41
- 229920005668 polycarbonate resin Polymers 0.000 claims abstract description 41
- 239000004417 polycarbonate Substances 0.000 claims abstract description 40
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 34
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 34
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 27
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 25
- 239000003963 antioxidant agent Substances 0.000 claims description 26
- 230000003078 antioxidant effect Effects 0.000 claims description 21
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 20
- 239000000314 lubricant Substances 0.000 claims description 17
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 12
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 9
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 6
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- KLDXJTOLSGUMSJ-JGWLITMVSA-N Isosorbide Chemical compound O[C@@H]1CO[C@@H]2[C@@H](O)CO[C@@H]21 KLDXJTOLSGUMSJ-JGWLITMVSA-N 0.000 claims description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 4
- 239000012964 benzotriazole Substances 0.000 claims description 4
- 229960002479 isosorbide Drugs 0.000 claims description 4
- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 abstract description 6
- 229920003002 synthetic resin Polymers 0.000 description 17
- 239000000057 synthetic resin Substances 0.000 description 17
- 239000000203 mixture Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 239000006096 absorbing agent Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 244000144972 livestock Species 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000004383 yellowing Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 150000001565 benzotriazoles Chemical class 0.000 description 2
- FQUNFJULCYSSOP-UHFFFAOYSA-N bisoctrizole Chemical compound N1=C2C=CC=CC2=NN1C1=CC(C(C)(C)CC(C)(C)C)=CC(CC=2C(=C(C=C(C=2)C(C)(C)CC(C)(C)C)N2N=C3C=CC=CC3=N2)O)=C1O FQUNFJULCYSSOP-UHFFFAOYSA-N 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- ZGPVUVBRTCPAPZ-UHFFFAOYSA-N 2,4-dichloro-1-[ethoxy(propylsulfanyl)phosphoryl]oxybenzene Chemical compound CCCSP(=O)(OCC)OC1=CC=C(Cl)C=C1Cl ZGPVUVBRTCPAPZ-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- 229920001651 Cyanoacrylate Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 description 1
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 239000012963 UV stabilizer Substances 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- JOZSCPCCPRBYNA-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol;[4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1.OCC1(CO)CCCCC1 JOZSCPCCPRBYNA-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- RIZMRRKBZQXFOY-UHFFFAOYSA-N ethion Chemical compound CCOP(=S)(OCC)SCSP(=S)(OCC)OCC RIZMRRKBZQXFOY-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
- B32B3/20—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side of hollow pieces, e.g. tubes; of pieces with channels or cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/546—Flexural strength; Flexion stiffness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
- B32B2419/06—Roofs, roof membranes
Landscapes
- Laminated Bodies (AREA)
Abstract
개시된 내용은, 고내열성 폴리카보네이트 수지, 내화학성 폴리카보네이트 수지 와 글리콜 변성 폴리에틸렌테레프탈레이트 수지를 최적의 혼합비율로 적용함으로써 외층 두께의 균일성을 유지하면서도 내화학성 및 내열성을 종래의 복층골판 대비 현저하게 향상시킬 수 있는 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판에 관한 것이다.The disclosed content is that by applying high heat-resistant polycarbonate resin, chemical-resistant polycarbonate resin, and glycol-modified polyethylene terephthalate resin at an optimal mixing ratio, chemical resistance and heat resistance are significantly improved compared to conventional multi-layer corrugated plates while maintaining uniformity of the outer layer thickness. This relates to a polycarbonate multi-layer corrugated plate with excellent heat resistance and chemical resistance that can be improved.
Description
본 명세서에 개시된 내용은 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판에 관한 것이다.The content disclosed in this specification relates to a polycarbonate multi-layer corrugated plate with excellent heat resistance and chemical resistance.
본 명세서에서 달리 표시하지 않는 한, 이 섹션에 설명되는 내용들은 이 출원의 청구항들에 대한 종래 기술이 아니며, 이 섹션에 포함된다고 하여 종래 기술이라고 인정되는 것은 아니다.Unless otherwise indicated herein, the material described in this section is not prior art to the claims of this application, and is not admitted to be prior art by inclusion in this section.
종래에는 구조물의 지붕 또는 외장재을 제조할 때 합성수지 등으로 이루어진 평판을 주로 사용하였는데, 평판의 주재료로 폴리카보네이트가 사용되었다. 폴리카보네이트는 투명도와 기계적 강도가 우수한 엔지니어링 플라스틱으로, 산업전반에 걸쳐 그 용도가 확대되고 있으며, 특히, 지붕 또는 외장재의 재료와 같은 건축분야에 많이 사용되고 있다. 그러나, 전술한 바와 같은 물성을 나타내는 폴리카보네이트를 평판으로 성형하여 축사에 적용하는 경우, 자외선이나 암모니아 가스에 오랜 기간 노출되면, 황변이 발생하거나 기계적 물성이 저하되어 외부의 충격으로부터 쉽게 파손될 수 있다.Conventionally, when manufacturing roofs or exterior materials of structures, flat plates made of synthetic resin were mainly used, and polycarbonate was used as the main material for the flat plates. Polycarbonate is an engineering plastic with excellent transparency and mechanical strength, and its use is expanding throughout the industry. In particular, it is widely used in the construction field, such as roofing or exterior materials. However, when polycarbonate exhibiting the above-described physical properties is molded into a flat plate and applied to a livestock shed, if exposed to ultraviolet rays or ammonia gas for a long period of time, yellowing may occur or mechanical properties may deteriorate, making it easily damaged from external impact.
이러한 문제점을 개선하기 위해 특허문헌 1과 2에서는 산화방지제 및 UV안정제와 같은 첨가제를 첨가하거나 폴리카보네이트 수지에 폴리부틸렌테레프탈레이트 수지를 더 적용하는 방법을 개시하고 있기는 하나 축사용에서 요구되는 내열성 및 내화학성을 충족시키기에는 여전히 부족한 실정이다.In order to improve this problem, Patent Documents 1 and 2 disclose a method of adding additives such as antioxidants and UV stabilizers or applying polybutylene terephthalate resin to polycarbonate resin, but the heat resistance required for livestock use is not sufficient. and chemical resistance are still insufficient.
개시된 내용은 고내열성 폴리카보네이트 수지, 내화학성 폴리카보네이트 수지와 글리콜 변성 폴리에틸렌테레프탈레이트 수지를 최적의 혼합비율로 적용함으로써 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판을 제공하고자 한다.The disclosed content seeks to provide a polycarbonate multilayer corrugated plate with excellent heat resistance and chemical resistance by applying a high heat resistance polycarbonate resin, a chemical resistance polycarbonate resin, and a glycol-modified polyethylene terephthalate resin at an optimal mixing ratio.
또한, 상술한 바와 같은 기술적 과제들로 한정되지 않으며, 이하의 설명으로부터 또 다른 기술적 과제가 도출될 수도 있음은 자명하다.In addition, it is not limited to the technical challenges described above, and it is obvious that other technical challenges may be derived from the description below.
개시된 내용의 일 실시예에 의하면, 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판은 고내열성 폴리카보네이트 수지와 글리콜 변성 폴리에틸렌테레프탈레이트 수지가 혼합된 합성수지, 산화방지제 및 활제를 포함하는 내층과 상기 내층의 상면 및 하면에 각각 공압출에 의해 일체로 형성되되, 고내열성 폴리카보네이트 수지, 내화학성 폴리카보네이트 수지 또는 이들의 혼합물과 글리콜 변성 폴리에틸렌테레프탈레이트 수지가 혼합된 합성수지, 자외선흡수제, 산화방지제 및 활제를 포함하는 외층으로 구성된다.According to one embodiment of the disclosed content, a polycarbonate multi-layer corrugated plate with excellent heat resistance and chemical resistance has an inner layer containing a synthetic resin mixed with a highly heat-resistant polycarbonate resin and a glycol-modified polyethylene terephthalate resin, an antioxidant, and a lubricant, and an upper surface of the inner layer. and a synthetic resin mixed with a highly heat-resistant polycarbonate resin, a chemical-resistant polycarbonate resin, or a mixture thereof, and a glycol-modified polyethylene terephthalate resin, a UV absorber, an antioxidant, and a lubricant. It consists of an outer layer.
또한, 상기 내층은 고내열성 폴리카보네이트 수지와 글리콜 변성 폴리에틸렌테레프탈레이트 수지가 혼합된 합성수지 100중량부, 산화방지제 0.1~1중량부 및 활제 0.1~1중량부를 포함할 수 있다.In addition, the inner layer may include 100 parts by weight of a synthetic resin mixed with a high heat-resistant polycarbonate resin and a glycol-modified polyethylene terephthalate resin, 0.1 to 1 part by weight of an antioxidant, and 0.1 to 1 part by weight of a lubricant.
또한, 상기 외층은 고내열성 폴리카보네이트 수지, 내화학성 폴리카보네이트 수지 또는 이들의 혼합물과 글리콜 변성 폴리에틸렌테레프탈레이트 수지가 혼합된 합성수지 100중량부, 자외선흡수제 1~10중량부, 산화방지제 0.1~1중량부 및 활제 0.1~1중량부를 포함할 수 있다.In addition, the outer layer is composed of 100 parts by weight of synthetic resin mixed with high heat-resistant polycarbonate resin, chemical-resistant polycarbonate resin, or a mixture thereof and glycol-modified polyethylene terephthalate resin, 1 to 10 parts by weight of ultraviolet absorber, and 0.1 to 1 part by weight of antioxidant. And it may include 0.1 to 1 part by weight of a lubricant.
개시된 내용의 일 실시예에 따른 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판은 고내열성 폴리카보네이트 수지, 내화학성 폴리카보네이트 수지와 글리콜 변성 폴리에틸렌테레프탈레이트 수지를 최적의 혼합비율로 적용함으로써 외층 두께의 균일성을 유지하면서도 내열성 및 내화학성을 종래의 복층골판 대비 현저하게 향상시킬 수 있는 효과가 있다.A polycarbonate multilayer corrugated plate with excellent heat resistance and chemical resistance according to an embodiment of the disclosed content achieves uniformity of the outer layer thickness by applying high heat resistance polycarbonate resin, chemical resistance polycarbonate resin, and glycol-modified polyethylene terephthalate resin at an optimal mixing ratio. It has the effect of significantly improving heat resistance and chemical resistance compared to conventional multi-layer corrugated plates while maintaining the
또한, 자외선에 의한 황변, 축사 내 암모니아 가스로 인한 부식이나 깨짐, 우박이나 다른 물체의 충격으로 인한 파손을 방지할 수 있음으로써 내충격성 및 안전성을 확보할 수 있는 효과가 있다.In addition, it has the effect of ensuring impact resistance and safety by preventing yellowing caused by ultraviolet rays, corrosion or cracking due to ammonia gas in the livestock house, and damage due to impact from hail or other objects.
도 1은 개시된 내용의 일 실시예에 따른 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판의 사용 상태도이다.
도 2 및 도 3은 개시된 내용의 일 실시예에 따른 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판을 나타낸 사진이다.
도 4는 도 1의 폴리카보네이트 복층골판에서 A영역을 확대하여 도시한 확대도이다.
도 5는 개시된 내용의 다른 실시예에 따른 폴리카보네이트 복층골판의 일 영역을 확대하여 도시한 확대도이다.
도 6은 개시된 내용의 일 실시예에 따른 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판의 외층 두께를 광학현미경으로 촬영한 이미지이다.Figure 1 is a diagram showing the use of a polycarbonate multi-layer corrugated plate with excellent heat resistance and chemical resistance according to an embodiment of the disclosed content.
Figures 2 and 3 are photographs showing a polycarbonate multi-layer corrugated plate with excellent heat resistance and chemical resistance according to an embodiment of the disclosed content.
Figure 4 is an enlarged view showing area A in the polycarbonate multi-layer corrugated plate of Figure 1.
Figure 5 is an enlarged view showing an enlarged area of a polycarbonate multilayer corrugated plate according to another embodiment of the disclosed content.
Figure 6 is an image taken with an optical microscope of the outer layer thickness of a polycarbonate multi-layer corrugated plate with excellent heat resistance and chemical resistance according to an embodiment of the disclosed content.
이하, 첨부된 도면을 참조하여 개시된 내용의 바람직한 실시예의 구성 및 작용 효과에 대하여 살펴본다. 참고로, 이하 도면에서, 각 구성요소는 편의 및 명확성을 위하여 생략되거나 개략적으로 도시되었으며, 각 구성요소의 크기는 실제 크기를 반영하는 것은 아니다. 또한 명세서 전체에 걸쳐 동일 참조 부호는 동일 구성요소를 지칭하며 개별 도면에서 동일 구성에 대한 도면 부호는 생략하기로 한다.Hereinafter, the configuration and operational effects of preferred embodiments of the disclosed content will be examined with reference to the attached drawings. For reference, in the drawings below, each component is omitted or schematically shown for convenience and clarity, and the size of each component does not reflect the actual size. In addition, the same reference numerals refer to the same components throughout the specification, and reference numerals for the same components in individual drawings will be omitted.
도 1은 개시된 내용의 일 실시예에 따른 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판의 사용 상태도이고, 도 2 및 도 3은 개시된 내용의 일 실시예에 따른 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판을 나타낸 사진이다.Figure 1 is a state diagram of the use of a polycarbonate multi-layer corrugated plate with excellent heat resistance and chemical resistance according to an embodiment of the disclosed content, and Figures 2 and 3 are a polycarbonate multi-layer corrugated plate with excellent heat resistance and chemical resistance according to an embodiment of the disclosed content. This is a photo showing.
도 1 내지 도 3을 참조하면, 개시된 내용의 일 실시예에 따른 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판(100)은 축사(1)에 적용되는 것으로, 하나 이상의 골(M1, M2)을 포함하고, 여기서 골(M1, M2)은 복수개이며, 지면에 대한 수직단면이 도 2에 도시된 것과 같이 사다리꼴 형상이거나 도 3에 도시된 것과 같이 반원 형상일 수 있다. 복수의 골(M1, M2)은 서로 동일한 크기이거나 상이한 크기일 수 있으며, 골(M1, M2)의 형상과 크기는 폴리카보네이트 복층골판의 설계에 따라 가변될 수 있는 사항이므로 특정 형상과 크기로 한정하지 아니한다.Referring to FIGS. 1 to 3, a polycarbonate multi-layer corrugated plate 100 having excellent heat resistance and chemical resistance according to an embodiment of the disclosed content is applied to the livestock house 1 and includes one or more corrugations M1 and M2. Here, there are a plurality of valleys M1 and M2, and the vertical cross-section with respect to the ground may be trapezoidal as shown in FIG. 2 or semicircular as shown in FIG. 3. The plurality of valleys (M1, M2) may be the same size or different sizes, and the shape and size of the valleys (M1, M2) may vary depending on the design of the polycarbonate double-layer corrugated plate, so they are limited to a specific shape and size. Don't do it.
본 실시예에 따른 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판(100)은 내층(110-1, 110-2)과 상기 내층(110-1, 110-2)의 상면 및 하면에 각각 공압출에 의해 일체로 형성되는 외층(120)으로 구성된다. The polycarbonate multi-layer corrugated plate 100, which has excellent heat resistance and chemical resistance according to this embodiment, is co-extruded on the inner layers 110-1 and 110-2 and the upper and lower surfaces of the inner layers 110-1 and 110-2, respectively. It consists of an outer layer 120 integrally formed by.
내층(110-1, 110-2)은 고내열성 폴리카보네이트 수지와 글리콜 변성 폴리에틸렌테레프탈레이트 수지가 혼합된 합성수지, 산화방지제 및 활제, 바람직하게는 고내열성 폴리카보네이트 수지와 글리콜 변성 폴리에틸렌테레프탈레이트 수지가 혼합된 합성수지 100중량부, 산화방지제 0.1~1중량부 및 활제 0.1~1중량부로 이루어질 수 있다. The inner layers (110-1, 110-2) are a synthetic resin mixed with a highly heat-resistant polycarbonate resin and a glycol-modified polyethylene terephthalate resin, an antioxidant and a lubricant, preferably a mixture of a high heat-resistant polycarbonate resin and a glycol-modified polyethylene terephthalate resin. It may consist of 100 parts by weight of synthetic resin, 0.1 to 1 part by weight of antioxidant, and 0.1 to 1 part by weight of lubricant.
합성수지는 고내열성 폴리카보네이트 수지 50~90중량% 및 글리콜 변성 폴리에틸렌테레프탈레이트 수지(글리콜 변성 PET 수지) 10~50중량%가 혼합된 것일 수 있다. 본 실시예에서 고내열성 폴리카보네이트 수지는 일반 폴리카보네이트 수지 대비 기계적 강도 및 열적 특성이 매우 우수한 바, 열변형온도 160~180℃, 용융지수 17~20g/10min, 굴곡강도 110~130MPa 및 굴절률 1.55~1.65를 만족하는 것이고, 글리콜 변성 폴리에틸렌테레프탈레이트 수지(글리콜 변성 PET 수지)는 에틸렌글리콜(Ethylene glycol, EG)에 테레프탈산(Terephthalic acid, TPA), 공단량체로 사이클로헥산디메탄올(1,4-cyclohexanedimethanol, CHDM) 및 바이오 베이스 단량체로 이소소르비드(Isosorbide)를 첨가하여 공중합한 수지로, 에틸렌글리콜(Ethylene glycol, EG)에 테레프탈산(Terephthalic acid, TPA)과 사이클로헥산디메탄올(1,4-cyclohexanedimethanol, CHDM)을 첨가하여 공중합한 기존 PETG 수지와는 상이한 물질이며, PETG 수지 대비 압출성 뿐만 아니라 내화학성 및 내충격성이 우수하다. The synthetic resin may be a mixture of 50 to 90% by weight of high heat-resistant polycarbonate resin and 10 to 50% by weight of glycol-modified polyethylene terephthalate resin (glycol-modified PET resin). In this example, the highly heat-resistant polycarbonate resin has very excellent mechanical strength and thermal properties compared to general polycarbonate resin, with a heat distortion temperature of 160 to 180°C, a melt index of 17 to 20 g/10 min, a flexural strength of 110 to 130 MPa, and a refractive index of 1.55 to 1.55. It satisfies 1.65, and glycol-modified polyethylene terephthalate resin (glycol-modified PET resin) is composed of ethylene glycol (EG), terephthalic acid (TPA), and cyclohexanedimethanol (1,4-cyclohexanedimethanol) as a comonomer. It is a resin copolymerized by adding isosorbide (CHDM) and bio-based monomer, and is composed of ethylene glycol (EG), terephthalic acid (TPA), and cyclohexanedimethanol (1,4-cyclohexanedimethanol, CHDM). ) is a different material from the existing PETG resin copolymerized by adding, and has excellent extrudability as well as chemical resistance and impact resistance compared to PETG resin.
한편, 이소소르비드(Isosorbide)는 옥수수, 밀 등 식물에서 추출한 전분을 화학적으로 가공해 만든 바이오 베이스 단량체(monomer)로 환경친화적인 물질이며, 기존 공정에 이소소르비드(Isosorbide)를 더 첨가함으로써 80~110℃와 같은 고온에서의 내열성, 내화학성, 가공성 등의 개선이 가능할 수 있다. 따라서, 본 실시예의 글리콜 변성 폴리에틸렌테레프탈레이트 수지(글리콜 변성 PET 수지)는 전광선 투과율 90% 이상, 헤이즈 1.0% 이하 및 로크웰 경도 115HRC 이상을 만족할 수 있다.Meanwhile, isosorbide is an environmentally friendly bio-based monomer made by chemically processing starch extracted from plants such as corn and wheat. It may be possible to improve heat resistance, chemical resistance, and processability at high temperatures such as ~110°C. Therefore, the glycol-modified polyethylene terephthalate resin (glycol-modified PET resin) of this example can satisfy the total light transmittance of 90% or more, haze of 1.0% or less, and Rockwell hardness of 115 HRC or more.
산화방지제는 수지가 공기와 반응하여 쉽게 산화반응되어 품질이 저하되는 것을 방지하기 위해 첨가하는 물질로, 페놀계, 아민계, 유황계, 포스페이트계 및 인계 중에서 선택되는 하나 이상, 바람직하게는 페놀계 및 포스페이트계를 1~2: 1 중량비로 혼합하여 사용할 수 있다. 상기 언급한 물질 및 비율로 혼합 사용하는 경우 컴파운딩시 내열안정성이 떨어지는 문제를 개선할 수 있다. 시판중인 산화방지제 중 페놀계로는 Irganox 1076(BASF), Irganox 1010(BASF), AO-60/AO-60G(ADEKA), ETHANOX® 310(ALBEMARLE) 등이 있고, 포스페이트계로는 Irgafos 168(BASF), ETHAPHOSTM 368(ALBEMARLE), Hostanox® P-EPQ® FF(Clariant) 등이 있다.Antioxidant is a substance added to prevent the resin from being easily oxidized and deteriorating in quality when reacting with air, and is at least one selected from phenol-based, amine-based, sulfur-based, phosphate-based and phosphorus-based, preferably phenol-based. and phosphates can be mixed and used at a weight ratio of 1 to 2: 1. When mixed with the above-mentioned materials and ratios, the problem of poor heat resistance stability during compounding can be improved. Among commercially available antioxidants, phenol-based ones include Irganox 1076 (BASF), Irganox 1010 (BASF), AO-60/AO-60G (ADEKA), and ETHANOX ® 310 (ALBEMARLE), while phosphate-based antioxidants include Irgafos 168 (BASF), ETHAPHOS TM 368 (ALBEMARLE), Hostanox ® P-EPQ ® FF (Clariant), etc.
이러한 산화방지제는 합성수지 100중량부에 대해 0.1~1중량부, 바람직하게는 0.3~0.5중량부로 포함될 수 있는데, 이는 산화방지제가 0.1중량부 미만이면, 수지가 쉽게 산화됨으로써 사용수명 단축되거나 컴파운딩시 내열안정성이 떨어질 수 있고, 1중량부를 초과하면, 필요 이상의 사용에 따른 상승효과는 그다지 크지 않을 수 있으며, 물성이 저하될 수 있다.These antioxidants may be included in an amount of 0.1 to 1 part by weight, preferably 0.3 to 0.5 parts by weight, based on 100 parts by weight of the synthetic resin. If the antioxidant is less than 0.1 parts by weight, the resin is easily oxidized, shortening its service life or causing damage when compounding. Heat resistance stability may be reduced, and if it exceeds 1 part by weight, the synergistic effect of using more than necessary may not be so great, and physical properties may deteriorate.
활제는 수지를 가열 성형할 때 유동성을 좋게 하여 가공을 쉽게 하기 위해 사용되는 물질로, 금속 스테아레이트계(metal stearate), 에스테르계(ester), 아마이드계(amide) 및 파라핀계(paraffin) 중에서 선택되는 하나 이상, 바람직하게는 금속 스테아레이트계(metal stearate)를 사용할 수 있다. 시판중인 활제로는 예를 들어 Hi-Lube(신원화학), Mg-St(Songwon), Ca-St(Songwon), Zn-St(Songwon), AX-71(ADEKA사), Loxiol® P-861(Emery사) 등이 있다.A lubricant is a substance used to improve fluidity and facilitate processing when heat molding resin. It can be selected from metal stearate, ester, amide, and paraffin. One or more, preferably metal stearate, can be used. Commercially available lubricants include, for example, Hi-Lube (Shinwon Chemical), Mg-St (Songwon), Ca-St (Songwon), Zn-St (Songwon), AX-71 (ADEKA), and Loxiol ® P-861. (Emery company), etc.
이러한 활제는 합성수지 100중량부에 대해 0.1~1중량부, 바람직하게는 0.3~0.5중량부로 포함될 수 있는데, 이는 활제가 0.1중량부 미만이면, 성형성이 저하될 수 있고, 1중량부를 초과하면, 필요 이상의 사용에 따른 상승효과는 그다지 크지 않을 수 있다.This lubricant may be included in an amount of 0.1 to 1 part by weight, preferably 0.3 to 0.5 part by weight, based on 100 parts by weight of the synthetic resin. If the lubricant is less than 0.1 part by weight, moldability may be reduced, and if it exceeds 1 part by weight, The synergistic effect of using more than necessary may not be that great.
도 4는 도 1의 폴리카보네이트 복층골판에서 A영역을 확대하여 도시한 확대도이고, 도 5는 개시된 내용의 다른 실시예에 따른 폴리카보네이트 복층골판의 일 영역을 확대하여 도시한 확대도이다.Figure 4 is an enlarged view showing an enlarged area A of the polycarbonate multi-layer corrugated plate of Figure 1, and Figure 5 is an enlarged view showing an enlarged area of a polycarbonate multi-layer corrugated plate according to another embodiment of the disclosed content.
도 4에 도시된 바와 같이, 내층(110-1)은 상부시트(111), 상기 상부시트(111)와 일정간격 이격되게 구비되는 하부시트(112) 및 상기 상부시트(111)와 상기 하부시트(112)를 연결하되 일정간격(H)을 유지시키는 복수의 리브(113)로 구성될 수도 있고, 도 5에 도시된 바와 같이 내층(110-2)은 상부시트(111), 상기 상부시트(111)와 일정간격 이격되게 구비되는 하부시트(112), 상기 상부시트(111)와 상기 하부시트(112)를 연결하되 일정간격(H)을 유지시키는 복수의 리브(113) 및 상기 상부시트(111)와 상기 하부시트(112) 사이에 위치되고, 상기 복수의 리브(113)를 가로지르는 하나 이상의 중간시트(114)로 구성될 수도 있다. 다만, 중간시트(114)의 개수는 내층(110-2)의 설계에 따라 가변될 수 있는 사항이므로 특정 개수로 한정하지 아니한다. 상술한 바와 같이 내층(110-1, 110-2)의 양면에 외층(120), 내층(110-1, 110-2)에 복수의 리브(113)가 구비됨으로써 내충격성은 향상되면서 증가된 크기에 비해 중량은 감소되어 우박이나 다른 물체의 충격으로 인한 파손을 방지할 수 있음으로써 내충격성 및 안전성을 확보할 수 있다.As shown in FIG. 4, the inner layer 110-1 includes an upper sheet 111, a lower sheet 112 provided at a certain distance from the upper sheet 111, and the upper sheet 111 and the lower sheet. It may be composed of a plurality of ribs 113 that connect (112) but maintain a certain gap (H), and as shown in Figure 5, the inner layer (110-2) includes an upper sheet (111), the upper sheet ( 111) and a lower sheet 112 that is provided at a predetermined interval, a plurality of ribs 113 that connect the upper sheet 111 and the lower sheet 112 but maintain a certain distance (H), and the upper sheet ( 111) and the lower sheet 112, and may be composed of one or more intermediate sheets 114 crossing the plurality of ribs 113. However, since the number of intermediate sheets 114 can vary depending on the design of the inner layer 110-2, it is not limited to a specific number. As described above, the outer layer 120 is provided on both sides of the inner layers 110-1 and 110-2, and the inner layers 110-1 and 110-2 are provided with a plurality of ribs 113, thereby improving impact resistance and increasing the size. Compared to this, the weight is reduced and damage due to impact from hail or other objects can be prevented, thereby ensuring impact resistance and safety.
외층(120)은 내층(110-1, 110-2)의 상면 및 하면에 각각 공압출에 의해 일체로 형성되고, 20~40um, 바람직하게는 도 4에 도시된 바와 같이 30um 두께로 형성되는 것이 바람직한데, 이는 두께가 20um 미만이면, 내충격성 향상효과가 미미하고, 40um를 초과하면, 중량이 증가되어 구조물에 큰 하중이 가해질 수 있다. 한편, 외층(120)은 고내열성 폴리카보네이트 수지, 내화학성 폴리카보네이트 수지 또는 이들의 혼합물과 글리콜 변성 폴리에틸렌테레프탈레이트 수지가 혼합된 합성수지, 자외선흡수제, 산화방지제 및 활제, 바람직하게는 고내열성 폴리카보네이트 수지, 내화학성 폴리카보네이트 수지 또는 이들의 혼합물과 글리콜 변성 폴리에틸렌테레프탈레이트 수지가 혼합된 합성수지 100중량부, 자외선흡수제 1~10중량부, 산화방지제 0.1~1중량부 및 활제 0.1~1중량부로 이루어질 수 있다. 따라서, 자외선에 의한 황변이라던지 축사 내 암모니아 가스로 인한 부식이나 깨짐과 같은 문제의 해결이 가능함으로써 내충격성 및 안전성의 확보가 가능하다.The outer layer 120 is formed integrally with the upper and lower surfaces of the inner layers 110-1 and 110-2 by co-extrusion, respectively, and is formed to a thickness of 20 to 40 μm, preferably 30 μm as shown in FIG. 4. Preferably, if the thickness is less than 20um, the impact resistance improvement effect is minimal, and if it exceeds 40um, the weight increases and a large load may be applied to the structure. Meanwhile, the outer layer 120 is made of highly heat-resistant polycarbonate resin, chemically resistant polycarbonate resin, or a synthetic resin mixed with a mixture thereof and glycol-modified polyethylene terephthalate resin, ultraviolet absorber, antioxidant and lubricant, preferably a high heat-resistant polycarbonate resin. , It may be composed of 100 parts by weight of synthetic resin mixed with chemical-resistant polycarbonate resin or a mixture thereof and glycol-modified polyethylene terephthalate resin, 1 to 10 parts by weight of ultraviolet absorber, 0.1 to 1 part by weight of antioxidant, and 0.1 to 1 part by weight of lubricant. . Therefore, it is possible to solve problems such as yellowing caused by ultraviolet rays or corrosion or breakage caused by ammonia gas in the livestock house, thereby ensuring impact resistance and safety.
예컨대, 합성수지는 고내열성 폴리카보네이트 수지 25~45중량%, 내화학성 폴리카보네이트 수지 25~45중량%와 글리콜 변성 폴리에틸렌테레프탈레이트 수지(글리콜 변성 PET 수지) 10~50중량%가 혼합된 것일 수 있으며, 특히, 내화학성 폴리카보네이트 수지의 경우 ESCR(Environmental Stress Crack Resistance; 환경 장력 균열 저항 시험)에 통과할 수 있도록 내화학성이 개선되기는 하였으나 일반 폴리카보네이트 수지 대비 열적 특성이 다소 미흡함으로 태양광으로부터의 손상을 방지하기 위해 고내열성 폴리카보네이트 수지라던지 글리콜 변성 폴리에틸렌테레프탈레이트 수지(글리콜 변성 PET 수지)와의 혼합비율이 매우 중요하다. 따라서, 외층 두께 균일성, 압출성 및 외관품질, 내열성, 내후성, 내화학성을 모두 확보할 수 있도록 고내열성 폴리카보네이트 수지, 내화학성 폴리카보네이트 수지와 글리콜 변성 폴리에틸렌테레프탈레이트 수지(글리콜 변성 PET 수지)는 1: 1~2: 0.1~2중량비로 적용하는 것이 바람직하다. 본 실시예에서 내화학성 폴리카보네이트 수지는 열변형온도 110~130℃, 용융지수 8~10g/10min 및 굴곡강도 80~100MPa를 만족하는 것이고, 고내열성 폴리카보네이트 수지 및 글리콜 변성 폴리에틸렌테레프탈레이트 수지(글리콜 변성 PET 수지)는 상기 내층과 동일한 바 중복되므로 생략하기로 한다.For example, the synthetic resin may be a mixture of 25-45% by weight of high heat-resistant polycarbonate resin, 25-45% by weight of chemical-resistant polycarbonate resin, and 10-50% by weight of glycol-modified polyethylene terephthalate resin (glycol-modified PET resin). In particular, in the case of chemical-resistant polycarbonate resin, the chemical resistance has been improved to pass ESCR (Environmental Stress Crack Resistance test), but the thermal properties are somewhat inferior to general polycarbonate resin, so it is less susceptible to damage from sunlight. To prevent this, the mixing ratio with high heat-resistant polycarbonate resin or glycol-modified polyethylene terephthalate resin (glycol-modified PET resin) is very important. Therefore, in order to ensure uniformity of outer layer thickness, extrusion and appearance quality, heat resistance, weather resistance, and chemical resistance, high heat-resistant polycarbonate resin, chemical-resistant polycarbonate resin, and glycol-modified polyethylene terephthalate resin (glycol-modified PET resin) are used. It is desirable to apply it at a weight ratio of 1: 1~2: 0.1~2. In this example, the chemical-resistant polycarbonate resin satisfies a heat distortion temperature of 110 to 130°C, a melt index of 8 to 10 g/10 min, and a flexural strength of 80 to 100 MPa, and the high heat-resistant polycarbonate resin and glycol-modified polyethylene terephthalate resin (glycol Modified PET resin) is the same as the inner layer and overlaps with it, so it will be omitted.
자외선흡수제는 조성물의 내후성을 개선시키고, 광원에서 발생하는 자외선에 의한 황변현상을 감소시키기 위해 사용하는 물질로, 벤조페논계, 벤조트리아졸계, 시아노아크릴레이트계, 사리치레토계 및 니켈착염계 중에서 선택되는 하나 이상, 바람직하게는 벤조트리아졸계, 가장 바람직하게는 2,2'-메틸렌-비스(6-(2H-벤조트리아졸-2-일)-4-(1,1,3,3-테트라메틸부틸)) (2,2'-methylene-bis(6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)))을 사용할 수 있으나 250~800nm 범위의 파장을 흡수할 수 있는 물질이라면 그 사용에 있어서 크게 제한하지 아니한다.Ultraviolet absorbers are substances used to improve the weather resistance of the composition and reduce yellowing caused by ultraviolet rays generated from a light source. They include benzophenone-based, benzotriazole-based, cyanoacrylate-based, sarichireto-based, and nickel complex salt-based. one or more selected, preferably benzotriazole-based, most preferably 2,2'-methylene-bis(6-(2H-benzotriazol-2-yl)-4-(1,1,3,3- Tetramethylbutyl)) (2,2'-methylene-bis(6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl))) can be used, but the range is 250~800nm. As long as it is a material that can absorb wavelengths, there are no significant restrictions on its use.
이러한 자외선흡수제는 합성수지 100중량부에 대해 1~10중량부, 바람직하게는 2~5중량부로 포함될 수 있는데, 이는 자외선흡수제가 2중량부 미만이면, 자외선으로 인한 변색뿐만 아니라 기계적 물리적 성질이 저하될 수 있고, 10중량부를 초과하면, 물성저하 현상이 발생될 수 있다.These ultraviolet absorbers may be included in 1 to 10 parts by weight, preferably 2 to 5 parts by weight, based on 100 parts by weight of the synthetic resin. If the ultraviolet absorber is less than 2 parts by weight, not only discoloration due to ultraviolet rays but also deterioration of mechanical and physical properties may occur. If it exceeds 10 parts by weight, a decrease in physical properties may occur.
산화방지제 및 활제는 상기 내층과 동일한 바 중복되므로 생략하기로 한다.Antioxidants and lubricants are the same as the inner layer and overlap, so they will be omitted.
본 실시예에서는 폴리카보네이트 복층골판의 물성에 영향을 미치지 않는 범위 내에서 광안정제, 블로잉제, 가소제, 난연제 및 안료 중에서 선택되는 하나 이상의 첨가제를 더 사용할 수 있음은 물론이다.In this embodiment, it is of course possible to further use one or more additives selected from light stabilizers, blowing agents, plasticizers, flame retardants, and pigments within the range that does not affect the physical properties of the polycarbonate multi-layer corrugated plate.
<실시예 1><Example 1>
하기 표 1에 기재된 외층에 해당하는 조성물을 이축압출기(Φ32, L/D=40:1)로 혼합/용융(240~260℃)시켜 펠렛화하였다. 싱글 스크류 압출기를 이용하되 main 압출기에는 내층 조성물을 투입하고, sub 압출기에는 제조된 펠렛을 투입하여 피드블럭을 통해 이를 T-die에 각각 제공하여 3.6mm두께의 폴리카보네이트 복층골판을 제조하였다.The composition corresponding to the outer layer shown in Table 1 below was pelletized by mixing/melting (240-260°C) using a twin-screw extruder (Φ32, L/D=40:1). Using a single screw extruder, the inner layer composition was put into the main extruder, the manufactured pellets were put into the sub extruder, and they were supplied to the T-die through a feed block to manufacture a 3.6mm thick polycarbonate double-layer corrugated plate.
<비교예 1 내지 3><Comparative Examples 1 to 3>
하기 표 2에 기재된 성분 및 성분비를 적용한 것을 제외하고는 실시예 1과 동일한 방법으로 폴리카보네이트 복층골판을 제조하였다.A polycarbonate multi-layer corrugated plate was manufactured in the same manner as in Example 1, except that the components and ratios shown in Table 2 below were applied.
실험예 1. 물리ㆍ화학적 특성 평가Experimental Example 1. Evaluation of physical and chemical properties
실시예 1, 비교예 1 내지 3에 따른 폴리카보네이트 복층골판의 물리ㆍ화학적 특성을 평가하기 위해 하기와 같이 실험을 실시하였다.An experiment was conducted as follows to evaluate the physical and chemical properties of the polycarbonate multilayer corrugated plates according to Example 1 and Comparative Examples 1 to 3.
(1) 두께(1) Thickness
전체 두께는 시편 전폭을 일정 간격으로 5분할하고, 두께측정기(CD-S15C, Mitutoyo)를 이용하여 측정한 후 평균값을 산출하였다.The total thickness was measured by dividing the full width of the specimen into 5 equal intervals and using a thickness meter (CD-S15C, Mitutoyo), and then calculating the average value.
외층 두께의 균일성은 폭 방향 두께를 광학현미경(BX53M, 올림푸스)을 이용해 편차를 측정하였다.The uniformity of the outer layer thickness was measured by measuring the deviation of the thickness in the width direction using an optical microscope (BX53M, Olympus).
(2) 외관품질(2) Appearance quality
제조과정에서의 흄 가스 및 파라핀 발생 등으로 인한 외관 품질 여부를 확인하여 평가하였다.The appearance quality was checked and evaluated due to the generation of fume gas and paraffin during the manufacturing process.
(3) 내열성(3) Heat resistance
외층 조성물에 대한 내열 특성 확인을 위해 ASTM D648 시험 규격에 의거해 두께 3.2mm 사출시편을 제조하고, HDT 시험기(HV3, CEVST)를 이용해 하중 1.8MPa, edge position으로 시험을 진행하고, 하중에 의한 변형이 ±2.5% 되는 시점의 온도를 측정하였으며, 각 조성별 3개의 시편을 측정하고 평균값을 산출하였다.To confirm the heat resistance properties of the outer layer composition, an injection specimen with a thickness of 3.2 mm was manufactured in accordance with the ASTM D648 test standard, and a test was performed using an HDT tester (HV3, CEVST) at a load of 1.8 MPa and edge position, and the deformation due to the load was performed. The temperature was measured at ±2.5%, three specimens for each composition were measured, and the average value was calculated.
(4) 내후성(4) Weather resistance
Q-UV 시험기(QUV/se, Q-LAB)를 이용해 UV 램프 340nm 파장, 광량 0.71W/㎡, 1cycle(UV mode 4hr, condensation 4hr)로 설정한 다음 200시간 단위로 1000시간까지 실험을 진행한 후 황변도(Yellow index; YI) 변화량(△YI)을 ASTM E313-73 규격에 따라 측정하고, 이들의 평균값을 산출하였다. Using a Q-UV tester (QUV/se, Q-LAB), the UV lamp was set to 340nm wavelength, light intensity of 0.71W/㎡, and 1 cycle (UV mode 4hr, condensation 4hr), and then the experiment was conducted in 200-hour increments up to 1000 hours. The amount of change in yellow index (YI) (ΔYI) was measured according to the ASTM E313-73 standard, and the average value was calculated.
(5) 내화학성(5) Chemical resistance
KS M ISO 275 시험규격을 준용하여 암모니아수 25w/w% 시험액을 500ml 비커에 약 50ml 담은 후 비커 입구에 시편을 올려놓고 24시간 경과 후 외관 품질 정도를 평가하였다.In accordance with the KS M ISO 275 test standard, approximately 50 ml of ammonia water 25 w/w% test solution was placed in a 500 ml beaker, a specimen was placed at the inlet of the beaker, and the appearance quality was evaluated after 24 hours.
표 3 및 도 6을 참조하면, 실시예 1의 경우 외층 두께 균일성, 압출성 및 외관품질, 내후성 및 내화학성에 해당하는 모든 항목에서 모두 우수하였다. 반면, 일반 PC 수지로 구성된 비교예 1의 경우 내열성, 내후성, 내화학성이 미흡하였고, 내화학성 PC와 일반 PC 수지로 구성된 비교예 2의 경우 내화학성은 우수하였으나, 내열성이 미흡하였다. 고내열성 PC 수지와 일반 PC 수지로 구성된 비교예 3의 경우 압출성 및 외관품질, 내열성, 내후성은 우수하였으나, 외층 두께 균일성 및 내화학성이 보통이었다. 따라서, 고내열성 PC 수지와 내화학성 PC 수지의 혼합비가 모든 항목에 지대한 영향을 미친다는 사실을 알 수 있었다.Referring to Table 3 and Figure 6, Example 1 was excellent in all items related to outer layer thickness uniformity, extrudability and appearance quality, weather resistance, and chemical resistance. On the other hand, in the case of Comparative Example 1 composed of general PC resin, heat resistance, weather resistance, and chemical resistance were insufficient, and in the case of Comparative Example 2 composed of chemical resistant PC and general PC resin, chemical resistance was excellent, but heat resistance was insufficient. In the case of Comparative Example 3, which consisted of a high heat resistance PC resin and a general PC resin, extrusion, appearance quality, heat resistance, and weather resistance were excellent, but outer layer thickness uniformity and chemical resistance were average. Therefore, it was found that the mixing ratio of high heat-resistant PC resin and chemical-resistant PC resin had a significant effect on all items.
개시된 내용은 예시에 불과하며, 특허청구범위에서 청구하는 청구의 요지를 벗어나지 않고 당해 기술분야에서 통상의 지식을 가진 자에 의하여 다양하게 변경 실시될 수 있으므로, 개시된 내용의 보호범위는 상술한 특정의 실시예에 한정되지 않는다.The disclosed content is merely an example, and may be modified and implemented in various ways by those skilled in the art without departing from the gist of the claims, so the scope of protection of the disclosed content is limited to the specific scope described above. It is not limited to the examples.
1: 축사
10: 폴리카보네이트 복층골판
100-1, 100-2: 내층
111: 상부시트
112: 하부시트
113: 리브
114: 중간시트
120: 외층1: Barn
10: Polycarbonate double-layer corrugated plate
100-1, 100-2: inner layer
111: Upper sheet
112: Lower seat
113: rib
114: Middle seat
120: outer layer
Claims (2)
상기 내층의 상면 및 하면에 각각 공압출에 의해 일체로 형성되되, 고내열성 폴리카보네이트 수지 30중량부, 내화학성 폴리카보네이트 수지 30중량부, 글리콜 변성 폴리에틸렌테레프탈레이트 수지 40중량부, 벤조트리아졸계 자외선흡수제 3중량부, 페놀계 산화방지제 0.1중량부, 포스파이트계 산화방지제 0.2중량부 및 금속 스테아레이트계 활제 0.2중량부를 포함하는 외층;으로 구성되고,
상기 내층은, 상부시트; 상기 상부시트와 일정간격 이격되게 구비되는 하부시트; 및 상기 상부시트와 상기 하부시트를 연결하되 일정간격을 유지시키는 복수의 리브;를 포함하고,
상기 외층의 두께는 20~40μm이고,
상기 글리콜 변성 폴리에틸렌테레프탈레이트 수지는 에틸렌글리콜에 테레프탈산, 사이클로헥산디메탄올 및 이소소르비드를 첨가하여 공중합한 것이고,
상기 고내열성 폴리카보네이트 수지는 열변형온도 160~180℃, 용융지수 17~20g/10min, 굴곡강도 110~130MPa 및 굴절률 1.55~1.65이고,
상기 내화학성 폴리카보네이트 수지는 열변형온도 110~130℃, 용융지수 8~10g/10min 및 굴곡강도 80~100MPa인 것을 특징으로 하는 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판.
An inner layer comprising 30 parts by weight of a highly heat-resistant polycarbonate resin, 70 parts by weight of a glycol-modified polyethylene terephthalate resin, 0.1 parts by weight of a phenol-based antioxidant, 0.2 parts by weight of a phosphite-based antioxidant, and 0.2 parts by weight of a metal stearate-based lubricant;
The inner layer is integrally formed on the upper and lower surfaces of the inner layer by co-extrusion, comprising 30 parts by weight of a highly heat-resistant polycarbonate resin, 30 parts by weight of a chemically resistant polycarbonate resin, 40 parts by weight of a glycol-modified polyethylene terephthalate resin, and a benzotriazole-based ultraviolet absorber. An outer layer containing 3 parts by weight, 0.1 part by weight of a phenol-based antioxidant, 0.2 parts by weight of a phosphite-based antioxidant, and 0.2 parts by weight of a metal stearate-based lubricant;
The inner layer includes an upper sheet; A lower sheet provided at a certain distance from the upper sheet; And a plurality of ribs connecting the upper sheet and the lower sheet but maintaining a certain distance between them.
The thickness of the outer layer is 20 to 40 μm,
The glycol-modified polyethylene terephthalate resin is copolymerized by adding terephthalic acid, cyclohexanedimethanol, and isosorbide to ethylene glycol,
The highly heat-resistant polycarbonate resin has a heat distortion temperature of 160 to 180°C, a melt index of 17 to 20 g/10 min, a flexural strength of 110 to 130 MPa, and a refractive index of 1.55 to 1.65,
The chemical-resistant polycarbonate resin is a polycarbonate multi-layer corrugated plate with excellent heat resistance and chemical resistance, characterized in that it has a heat distortion temperature of 110 ~ 130 ℃, a melt index of 8 ~ 10 g / 10 min, and a flexural strength of 80 ~ 100 MPa.
상기 내층의 상면 및 하면에 각각 공압출에 의해 일체로 형성되되, 고내열성 폴리카보네이트 수지 30중량부, 내화학성 폴리카보네이트 수지 30중량부, 글리콜 변성 폴리에틸렌테레프탈레이트 수지 40중량부, 벤조트리아졸계 자외선흡수제 3중량부, 페놀계 산화방지제 0.1중량부, 포스파이트계 산화방지제 0.2중량부 및 금속 스테아레이트계 활제 0.2중량부를 포함하는 외층;으로 구성되고,
상기 내층은, 상부시트; 상기 상부시트와 일정간격 이격되게 구비되는 하부시트; 상기 상부시트와 상기 하부시트를 연결하되 일정간격을 유지시키는 복수의 리브; 및 상기 상부시트와 상기 하부시트 사이에 위치되고, 상기 복수의 리브를 가로 지르는 하나 이상의 중간시트;를 포함하고,
상기 외층의 두께는 20~40μm이고,
상기 글리콜 변성 폴리에틸렌테레프탈레이트 수지는 에틸렌글리콜에 테레프탈산, 사이클로헥산디메탄올 및 이소소르비드를 첨가하여 공중합한 것이고,
상기 고내열성 폴리카보네이트 수지는 열변형온도 160~180℃, 용융지수 17~20g/10min, 굴곡강도 110~130MPa 및 굴절률 1.55~1.65이고,
상기 내화학성 폴리카보네이트 수지는 열변형온도 110~130℃, 용융지수 8~10g/10min 및 굴곡강도 80~100MPa인 것을 특징으로 하는 내열성 및 내화학성이 우수한 폴리카보네이트 복층골판.An inner layer comprising 30 parts by weight of a highly heat-resistant polycarbonate resin, 70 parts by weight of a glycol-modified polyethylene terephthalate resin, 0.1 parts by weight of a phenol-based antioxidant, 0.2 parts by weight of a phosphite-based antioxidant, and 0.2 parts by weight of a metal stearate-based lubricant;
The inner layer is integrally formed on the upper and lower surfaces of the inner layer by co-extrusion, comprising 30 parts by weight of a highly heat-resistant polycarbonate resin, 30 parts by weight of a chemically resistant polycarbonate resin, 40 parts by weight of a glycol-modified polyethylene terephthalate resin, and a benzotriazole-based ultraviolet absorber. An outer layer containing 3 parts by weight, 0.1 part by weight of a phenol-based antioxidant, 0.2 parts by weight of a phosphite-based antioxidant, and 0.2 parts by weight of a metal stearate-based lubricant;
The inner layer includes an upper sheet; A lower sheet provided at a certain distance from the upper sheet; A plurality of ribs connecting the upper sheet and the lower sheet and maintaining a certain distance between them; And one or more intermediate sheets located between the upper sheet and the lower sheet and crossing the plurality of ribs,
The thickness of the outer layer is 20 to 40 μm,
The glycol-modified polyethylene terephthalate resin is copolymerized by adding terephthalic acid, cyclohexanedimethanol, and isosorbide to ethylene glycol,
The highly heat-resistant polycarbonate resin has a heat distortion temperature of 160 to 180°C, a melt index of 17 to 20 g/10 min, a flexural strength of 110 to 130 MPa, and a refractive index of 1.55 to 1.65,
The chemical-resistant polycarbonate resin is a polycarbonate multi-layer corrugated plate with excellent heat resistance and chemical resistance, characterized in that it has a heat distortion temperature of 110 ~ 130 ℃, a melt index of 8 ~ 10 g / 10 min, and a flexural strength of 80 ~ 100 MPa.
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| JP2003154620A (en) * | 2001-11-20 | 2003-05-27 | Takiron Co Ltd | Corrugated panel made of polycarbonate resin |
| JP2008214866A (en) * | 2007-02-28 | 2008-09-18 | Takiron Co Ltd | Synthetic resin double-layered plate and its manufacturing method |
| KR101928236B1 (en) * | 2018-05-18 | 2018-12-11 | 박종엽 | Method for manufacturing lightweight trilayer sandwich structure and lightweight trilayer sandwich structure manufactured thereby |
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| KR100836363B1 (en) | 2007-07-11 | 2008-06-09 | 현대자동차주식회사 | Polycarbonate alloy resin composition improved weatherability |
| KR20150074327A (en) * | 2013-12-24 | 2015-07-02 | 쌍용자동차 주식회사 | Sunroof panel using thermoplastic composition having low birefringence and sunroof using the sunroof panel |
| KR20200059503A (en) | 2018-11-21 | 2020-05-29 | 롯데케미칼 주식회사 | Polycarbonate resin composition excellent in color and weatherability and manufacturing method the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003154620A (en) * | 2001-11-20 | 2003-05-27 | Takiron Co Ltd | Corrugated panel made of polycarbonate resin |
| JP2008214866A (en) * | 2007-02-28 | 2008-09-18 | Takiron Co Ltd | Synthetic resin double-layered plate and its manufacturing method |
| KR101928236B1 (en) * | 2018-05-18 | 2018-12-11 | 박종엽 | Method for manufacturing lightweight trilayer sandwich structure and lightweight trilayer sandwich structure manufactured thereby |
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