KR101470127B1 - A polyolefin resin composition having high impact strength and method for preparing thereof - Google Patents
A polyolefin resin composition having high impact strength and method for preparing thereof Download PDFInfo
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- KR101470127B1 KR101470127B1 KR1020130021295A KR20130021295A KR101470127B1 KR 101470127 B1 KR101470127 B1 KR 101470127B1 KR 1020130021295 A KR1020130021295 A KR 1020130021295A KR 20130021295 A KR20130021295 A KR 20130021295A KR 101470127 B1 KR101470127 B1 KR 101470127B1
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- polyolefin
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- based resin
- ethylene
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- 229920005672 polyolefin resin Polymers 0.000 title claims abstract description 46
- 239000011342 resin composition Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims description 10
- -1 propylene, ethylene, butylene Chemical group 0.000 claims description 25
- 239000004743 Polypropylene Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 18
- 229920001155 polypropylene Polymers 0.000 claims description 18
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 14
- 239000011256 inorganic filler Substances 0.000 claims description 13
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 13
- 239000002667 nucleating agent Substances 0.000 claims description 13
- 229920001577 copolymer Polymers 0.000 claims description 12
- 229920001971 elastomer Polymers 0.000 claims description 12
- 239000000155 melt Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 6
- 239000005977 Ethylene Substances 0.000 claims description 6
- 229920005606 polypropylene copolymer Polymers 0.000 claims description 6
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims description 5
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 claims description 5
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 5
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 claims description 5
- 239000000454 talc Substances 0.000 claims description 5
- 229910052623 talc Inorganic materials 0.000 claims description 5
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 4
- 239000008116 calcium stearate Substances 0.000 claims description 4
- 235000013539 calcium stearate Nutrition 0.000 claims description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 claims description 4
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 3
- 229920001384 propylene homopolymer Polymers 0.000 claims description 3
- 239000010456 wollastonite Substances 0.000 claims description 3
- 229910052882 wollastonite Inorganic materials 0.000 claims description 3
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 claims description 2
- OXJCOJXHCPVIPV-UHFFFAOYSA-N 4-n,4-n-dicyclohexylbenzene-1,4-dicarboxamide Chemical compound C1=CC(C(=O)N)=CC=C1C(=O)N(C1CCCCC1)C1CCCCC1 OXJCOJXHCPVIPV-UHFFFAOYSA-N 0.000 claims description 2
- KSLLMGLKCVSKFF-UHFFFAOYSA-N 5,12-dihydroquinolino[2,3-b]acridine-6,7,13,14-tetrone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C(=O)C(C(=O)C1=CC=CC=C1N1)=C1C2=O KSLLMGLKCVSKFF-UHFFFAOYSA-N 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 150000004645 aluminates Chemical class 0.000 claims description 2
- 229920001400 block copolymer Polymers 0.000 claims description 2
- 159000000007 calcium salts Chemical class 0.000 claims description 2
- 239000000378 calcium silicate Substances 0.000 claims description 2
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 239000012860 organic pigment Substances 0.000 claims description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229920005604 random copolymer Polymers 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 150000003751 zinc Chemical class 0.000 claims description 2
- 239000004711 α-olefin Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 238000005336 cracking Methods 0.000 claims 2
- 239000013078 crystal Substances 0.000 abstract description 21
- 239000000463 material Substances 0.000 abstract description 13
- 230000000052 comparative effect Effects 0.000 description 14
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229920000443 Xenoy Polymers 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- BLEGBZJBAPLQMY-UHFFFAOYSA-N 2-n,2-n-dicyclohexylnaphthalene-2,6-dicarboxamide Chemical compound C1=CC2=CC(C(=O)N)=CC=C2C=C1C(=O)N(C1CCCCC1)C1CCCCC1 BLEGBZJBAPLQMY-UHFFFAOYSA-N 0.000 description 1
- 229920002748 Basalt fiber Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- TYFQFVWCELRYAO-UHFFFAOYSA-N Suberic acid Natural products OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920005653 propylene-ethylene copolymer Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004736 wide-angle X-ray diffraction Methods 0.000 description 1
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/12—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
- B29B7/14—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with screw or helix
-
- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0083—Nucleating agents promoting the crystallisation of the polymer matrix
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
Abstract
본 발명에 의한 폴리올레핀 수지 조성물은 β-결정 구조가 포함되어 있기 때문에 고강성 및 충격강도 특성이 매우 우수하다. 그로 인하여, 경량화, 고강성 및 내충격 특성을 자동차 내외장재로서 널리 이용될 수 있는 것을 특징으로 한다.Since the polyolefin resin composition according to the present invention contains a? -Crystal structure, it has high rigidity and excellent impact strength. Therefore, it is characterized by being light weighted, high rigidity and impact resistance widely used as automobile interior and exterior materials.
Description
본 발명은 고강성 및 충격특성이 우수한 폴리올레핀계 수지 조성물에 관한 것으로, 보다 상세하게는 β-핵제를 사용하여 강성 및 충격 특성을 향상시킨 폴리올레핀계 수지 조성물 및 그 제조방법에 관한 것으로 이와 같은 폴리올레핀계 수지 조성물은 범퍼 백빔, 도어모듈, 프론트 엔드 모듈, 선루프 프레임등 고강성 및 고충격 특성을 요구하는 자동차 부품에 바람직하게 사용할 수 있다.
More particularly, the present invention relates to a polyolefin-based resin composition having improved stiffness and impact properties by using a? -Nucleating agent and a method for producing the same. In particular, the present invention relates to a polyolefin- The resin composition can be suitably used for automobile parts requiring high rigidity and high impact properties such as a bumper back beam, a door module, a front end module, and a sunroof frame.
β-결정형을 높인 폴리올레핀계 수지 조성물에 관한 종래의 특허문헌은 다음과 같다.The following patent documents related to a polyolefin-based resin composition having an increased? -crystal type are as follows.
WO 2003/102069은,WO 2003/102069,
(1) 결정성 폴리프로필렌 수지 및(1) a crystalline polypropylene resin and
(2) 1개 이상의 하기 화학식(I)의 β-핵생성제를 함유하며,(2) a beta-nucleating agent of one or more of the following formula (I)
상기 폴리프로필렌 수지는 하기의 방정식The polypropylene resin has the following formula
방정식: β-결정형태함량(%) = 100 x Pβ1 /(Pα1 + Pα2 + Pα3 + Pβ1)(%) = 100 x P? 1 / (P? 1 + P? 2 + P? 3 + P? 1)
(식중, P α1 내지 P α3 은 광각 X-선 산란법으로 측정한 α-형태의 피크 높이(최대)이고 또 P β1 은 β-형태의 피크 높이(최대)임)(Where P? 1 to P? 3 are peak heights (maximum) of the? -Form measured by wide angle X-ray scattering method and P? 1 is peak height (maximum) of?
으로 산출한 10% 이상, 예컨대 20% 또는 30% 또는 40% 또는 50% 또는 60% 또는 70% 또는 80% 또는 90% 또는 95% 이상의β-형태 결정 함량을 갖는 것을 특징으로 하는 조성물을 개시하고 있다. 본 β-핵생성제는 여러 가지 알킬 치환기를 이용하여 폴리프로필렌과의 상용성을 높을 수 있으나, 극성기 (-NCO-)함유량이 상대적으로 높기 때문에 수분에 의해 쉽게 가수분해가 되는 단점이 있다.Having a? -Form crystal content of 10% or more, such as 20% or 30% or 40% or 50% or 60% or 70% or 80% or 90% or 95% have. Although the present β-nucleating agent can improve compatibility with polypropylene using various alkyl substituents, it has a disadvantage that it is easily hydrolyzed by moisture because of its relatively high polar group (-NCO-) content.
화학식(I)(I)
WO 2009/041213은, WO 2009/041213,
결정화 온도가 높고, 투명성이 우수한 폴리올레핀 수지 조성물로서, 폴리올레핀계 수지 100질량부에 대해, 하기 일반식(1)으로 표시되는 메틸렌비스아닐리드 화합물 0.01∼10질량부를 배합하는 폴리올레핀 수지 조성물을 개시한다. 본 β-핵생성제는 극성기(-NHCO-, X) 함유량이 높아 탈크에 함유된 결정수나 외부의 수분에 의해 쉽게 오염되는 단점이 있으며, 폴리프로필렌과의 분산성이 좋지 않기 때문에 β-핵이 불균일하게 생성될 수 있다.A polyolefin resin composition having high crystallization temperature and excellent transparency, which comprises 0.01 to 10 parts by mass of a methylenebisanilide compound represented by the following general formula (1) per 100 parts by mass of a polyolefin-based resin. The present β-nucleating agent has a high polar group (-NHCO-, X) content, which is easily contaminated by the number of crystals contained in the talc and external moisture, and since the dispersibility with polypropylene is not good, And can be generated nonuniformly.
일반식(1)In general formula (1)
WO 97/008218은, 프로필렌을 고입체 규칙성 중합용 촉매와 수소의 존재하에 중합시킴으로써, 용융유량(ASTMD-1238)이 100 내지 1,000g/10분이고 각각 112℃ 미만의 온도에서의 o-디클로로벤젠에 용해된 프로필렌 중합체 집적치의 비율(Cf)[이는, 상기한 각각의 온도에서 o-디클로로벤젠에 용해된 프로필렌 중합체의 양을, o-디클로벤젠의 온도를 연속적으로 또는 단계적으로 증가시킴으로써 측정하는 경우, 중합체의 분자내 입자규칙성과 분자량 분포의 지수이다]이 0.5 이하인 프로필렌 중합체를, 전체 중합체의 중량을 기준으로 하여, 60 내지 95중량% 제조하는 중합 단계(Ⅰ)와, 에틸렌과 프로필렌을 제1단계에서 수득한 프로필렌 중합체에 가하여 에틸렌의 함량이 30 내지 80중량%로 되도록 함으로써 에틸렌-프로필렌 공중합체를, 전체 중량을 기준으로 하여, 5 내지 40중량% 제조하는 중합 단계(Ⅱ)로 수득한 것으로, 용융유량이 10 내지 300g/10분인 프로필렌-에틸렌 공중합체 조성물[여조성물은 상기한 조성물과 α-결정성 및/또는 β-결정성 핵 생성제를 포함한다]이 기재되어 있다. 극성용매인o-디클로로벤젠을 사용할 경우 폴리프로필렌 중합비용이 증가하기 때문에 경제성이 떨어질 뿐만 아니라, o-디클로로벤젠을 완벽하게 제거하기가 어렵기 때문에 VOC(VOLITILE ORGANIC SOLVENT)를 문제를 유발할 수 있다.WO 97/008218 discloses that propylene is polymerized in the presence of a catalyst for high stereoregular polymerization in the presence of hydrogen to provide a polymer having a melt flow rate (ASTM D-1238) of 100 to 1,000 g / 10 min and an o-dichlorobenzene (Cf), which is determined by continuously or step-wise increasing the temperature of o-dicobenzene to the amount of propylene polymer dissolved in o-dichlorobenzene at each of the above temperatures (I) which is an index of intramolecular particle size distribution of the polymer and an index of molecular weight distribution] of not more than 0.5, based on the weight of the whole polymer, of 60 to 95% by weight, The propylene polymer obtained in the first step is added to the ethylene-propylene copolymer so that the content of ethylene is 30 to 80% by weight, so that the ethylene-propylene copolymer is contained in an amount of 5 to 40 Propylene-ethylene copolymer composition having a melt flow rate of 10 to 300 g / 10 min, obtained by the polymerization step (II), which is used for producing an? -Crystalline and / or? -Crystalline nucleation ≪ / RTI > When a polar solvent o-dichlorobenzene is used, the cost of polypropylene polymerization is increased, which is not only economical, but also difficult to completely remove o-dichlorobenzene, which can cause problems with VOC (Volatile Organic Solvent).
한편, KR-2010-0006672(2010.01.21)의 폴리올레핀 조성물의 경우, 범퍼 백빔의 충격 성능 및 완충력을 향상시키기 위해 일방향 보강재를 사용하였으나, 범퍼 백빔의 무게가 증가하고 공정비용이 증가하는 단점이 있다.On the other hand, in the case of the polyolefin composition of KR-2010-0006672 (Jan. 21, 2010), unidirectional stiffeners are used to improve impact performance and buffering force of the bumper back beam, but the weight of the bumper back beam is increased and the process cost is increased .
또한, KR-2010-0104773(2012.09.29)의 폴리올레핀 조성물의 경우, 범퍼 백빔의 완충력을 향상시키기 위해 다중재질로 성형되는 소재를 사용하였으나, GMT를 사용함으로써 범퍼 백빔의 무게가 증가하는 단점이 있다.
In addition, in the case of the polyolefin composition of KR-2010-0104773 (Sep. 29, 2012), a material formed of multiple materials is used to improve the buffering power of the bumper back beam, but the weight of the bumper back beam is increased by using GMT .
자동차용 범퍼 백빔은 차량 충돌 시 충격을 흡수하기 위해 범퍼의 내부에 설치된다. 이러한 범퍼 백빔은 고강성 및 내충격 특성이 보장되어야 한다.The automotive bumper back beam is installed inside the bumper in order to absorb the impact in the event of a vehicle collision. These bumper back beams must have high rigidity and impact resistance.
종래 범퍼 백빔은 글래스 파이버(Glass fiber)와 폴리프로필렌계 수지를 프레스 금형 내부에 글래스 매트 시트에 적층시켜 고압의 프레스로 프레스 성형하였다.Conventionally, a glass fiber and a polypropylene resin were laminated on a glass mat sheet in a press mold and press-molded by a high-pressure press.
그런데 종래 기술의 경우 고압의 프레스 성형을 통해 범퍼 백빔이 제조되므로, 보강용 리브, 장착홀, 및 브라켓 등에 대한 일체 성형이 불가하고, 강도 보강이 어려우며, 후가공이 추가되어야 할 뿐만 아니라 다량의 글래스 파이버를 사용함으로써 최종 제품의 중량이 증가하는 단점이 있다.However, in the related art, since the bumper back beam is manufactured through the high-pressure press molding, it is impossible to integrally mold the reinforcing rib, the mounting hole, and the bracket and the reinforcement of strength is difficult and the post- The weight of the final product is increased.
이러한 단점을 보완하기 위해 범퍼 백빔용 소재로 사출 성형이 가능한 PC/Polyester계 소재인 Xenoy가 일부자동차 사용되고 있으나, 소재의 가격이 높고 재활용이 어려울 뿐만 아니라 상대적으로 폴리올레핀계 소재 대비 비중이 높은 단점이 있다.In order to compensate for these drawbacks, Xenoy, a PC / polyester material that can be injection-molded using a bumper back beam material, has been used in some automobiles, but it has high disadvantages such as high price of materials, difficulty in recycling, and relatively high proportion of polyolefin-based materials .
상기 단점을 극복하기 위해 본 발명은 고강성 및 충격특성이 우수한 폴리올레핀계 수지 조성물 에 관한 것으로, 보다 상세하게는 β-핵제를 사용하여 강성 및 충격 특성을 향상시킨 폴리올레핀계 수지 조성물 및 그 제조방법을 제공하고자 한다.
In order to overcome the above disadvantages, the present invention relates to a polyolefin-based resin composition excellent in rigidity and impact properties, and more particularly, to a polyolefin-based resin composition having improved rigidity and impact properties by using a? .
본 발명은, 폴리올레핀 수지 15 ~ 97.99 중량%, 열가소성 탄성체 고무 1 ~ 40 중량% 및 무기 충전재 1 ~ 40 중량% 및 β-핵제 0.01 ~ 5 중량%를 포함하는 폴리올레핀계 수지 조성물을 제공한다.
The present invention provides a polyolefin-based resin composition comprising 15 to 97.99% by weight of a polyolefin resin, 1 to 40% by weight of a thermoplastic elastomer rubber, 1 to 40% by weight of an inorganic filler and 0.01 to 5% by weight of a?
본 발명에 의한 폴리올레핀 수지 조성물은 β-결정 구조가 포함되어 있기 때문에 고강성 및 충격강도 특성이 매우 우수하다. 그로 인하여, 경량화, 고강성 및 내충격 특성을 자동차 내외장재로서 널리 이용될 수 있는 것을 특징으로 한다.
Since the polyolefin resin composition according to the present invention contains a? -Crystal structure, it has high rigidity and excellent impact strength. Therefore, it is characterized by being light weighted, high rigidity and impact resistance widely used as automobile interior and exterior materials.
도 1은 실시예 3에서 제조한 조성물의 POM 사진이다.
도 2은 비교예 2에서 제조한 조성물의 POM 사진이다.1 is a POM photograph of the composition prepared in Example 3. Fig.
2 is a POM photograph of the composition prepared in Comparative Example 2. Fig.
일반적으로 폴리프로필렌은 α-결정, β-결정, γ-결정을 형성하는 것으로 알려져 있다. In general, polypropylene is known to form [alpha] -crystals, [beta] -crystals, [gamma] -crystals.
α-결정은 렌즈 모양의 라멜라를 형성하는 ‘cross-hatched’ 결정구조를 가지고 있다. 이러한 α-결정은 구정의 사이즈가 크기 때문에 강성은 증가시킬 수 있으나, 상대적으로 충격강도가 떨어지는 단점이 있다. The α-crystal has a 'cross-hatched' crystal structure that forms a lens-like lamellar. These α-crystals can increase the stiffness because of the large size of the city, but they have a disadvantage in that the impact strength is relatively low.
β-결정은 ‘pseudo-hexagonal’ 결정구조를 가지며, 상대적으로 라멜라 크기가 작고 무질서도가 큰 결정을 형성한다. 이러한 결정 구조로 인해 β-결정은 라멜라들이 서로 미끌어지면서 변형이 가능하므로, 충격강도 및 신율이 증가하는 특징이 있다.β-crystals have a 'pseudo-hexagonal' crystal structure and relatively small lamellar crystals and large disordered crystals. Due to such a crystal structure, the? -Crystal is characterized in that the lamellas are mutually slidable and deformable, thereby increasing the impact strength and elongation.
γ-결정 ‘orthorhombic’ 구조를 나타내며, 고압, 응력이 작용하는 조건에서 서서히 결정화 시킬때만 나타나는 결정구조이다. γ-crystal 'orthorhombic' structure, which is a crystal structure that appears only when crystallizing slowly under high pressure and stressed conditions.
본 발명은 폴리올레핀계 수지 조성물에 β-결정을 유도하여 강성 및 충격 특성을 향상 시킨 폴리올레핀계 수지 조성물 및 그 제조방법에 관한 것이다.
The present invention relates to a polyolefin-based resin composition in which? -Crystals are induced in a polyolefin-based resin composition to improve rigidity and impact properties, and a method for producing the same.
이와 같은 폴리올레핀계 수지 조성물은 범퍼 백빔, 도어모듈, 프론트 엔드 모듈, 선루프 프레임등 고강성 및 고충격특성을 요구하는 자동차 부품에 바람직하게 사용할 수 있다.Such a polyolefin resin composition can be suitably used for automobile parts requiring high rigidity and high impact properties such as a bumper back beam, a door module, a front end module, and a sunroof frame.
본 발명은, 폴리올레핀 수지 15 ~ 97.99 중량%, 열가소성 탄성체 고무 1 ~ 40 중량% 및 무기 충전재 1 ~ 40 중량% 및 β-핵제 0.01 ~ 5 중량%를 포함하는 폴리올레핀계 수지 조성물을 제공한다.The present invention provides a polyolefin-based resin composition comprising 15 to 97.99% by weight of a polyolefin resin, 1 to 40% by weight of a thermoplastic elastomer rubber, 1 to 40% by weight of an inorganic filler and 0.01 to 5% by weight of a?
상기 폴리올레핀계 수지는 호모-폴리프로필렌(Homo-PP), 프로필렌, 에틸렌, 부틸렌 및 옥텐으로 이루어진 그룹에서 선택된 공단량체가 중합된 랜덤공중합체, 폴리프로필렌에 에틸렌-프로필렌 고무가 블렌딩된 블록공중합체, 폴리프로필렌 가지가 달린 고용융장력 폴리프로필렌(high melt strength PP; HMS PP) 및 폴리에틸렌으로 이루어진 군에서 선택되는 1종 이상인 것을 특징으로 하는 폴리올레핀계 수지 조성물을 제공한다.The polyolefin-based resin may be a random copolymer obtained by polymerizing a comonomer selected from the group consisting of homo-polypropylene (Homo-PP), propylene, ethylene, butylene and octene, a block copolymer obtained by blending an ethylene- , High melt strength PP (HMS PP) with polypropylene branches, and polyethylene. The polyolefin-based resin composition according to claim 1,
또한 본 발명은, 폴리올레핀계 수지 15 ~ 97.99 중량%, 열가소성 탄성체 고무 1 ~ 40 중량% 및 무기 충전재 1 ~ 40 중량% 및 β-핵제 0.01 ~ 5 중량%을 혼합하는 단계;The present invention also provides a method for producing a thermoplastic elastomer composition, comprising: mixing 15 to 97.99% by weight of a polyolefin resin, 1 to 40% by weight of a thermoplastic elastomer rubber, 1 to 40% by weight of an inorganic filler, and 0.01 to 5%
상기 혼합물을 단축압출기 또는 이축압출기 또는 다축압출기를 이용하여 압출온도 150~260℃, 스크류 회전속도 100~900rpm의 압출 단계를 포함하는 폴리올레핀계 수지 조성물을 제조하는 방법을 제공한다.And extruding the mixture using a single screw extruder or a twin screw extruder or a multi-screw extruder at an extrusion temperature of 150 to 260 DEG C and a screw rotation speed of 100 to 900 rpm.
본 발명의 조성물은 프로필렌 단독 중합체 또는 프로필렌과 12몰% 이하의 에틸렌 또는 C4 ~ C10 올레핀계 단량체와의 공중합체가 사용될 수 있다. 더욱 바람직하게는 프로필렌과 12몰% 이하의 에틸렌의 공중합체가 사용될 수 있다. 폴리프로필렌 공중합체 내에, 프로필렌 단독 중합체 또는 프로필렌과 12몰% 이하의 에틸렌 또는C4 ~ C10 올레핀계 단량체와의 공중합체가 사용되는 경우, 강성과 내충격성이 우수한 이점이 있으며, 특히 프로필렌과 10몰%이하의 에틸렌 공중합체를 사용하는 경우 표면경도 저하가 적어 내스크래치성 개선효과 유리하다.The composition of the present invention may be a propylene homopolymer or a copolymer of propylene and 12 mol% or less of ethylene or a C4 to C10 olefin-based monomer. More preferably, a copolymer of propylene and 12 mol% or less of ethylene can be used. When a propylene homopolymer or a copolymer of propylene with 12 mol% or less of ethylene or a C4 to C10 olefin-based monomer is used in the polypropylene copolymer, it has an advantage of being excellent in rigidity and impact resistance, Or less of the ethylene copolymer is used, the surface hardness is less decreased and the effect of improving the scratch resistance is advantageous.
또한, 폴리프로필렌 수지는 용융지수가 8 ~ 150g/10분(230℃, 2.16 Kgf)인 것이 사용될 수 있다. 사용되는 폴리프로필렌 수지의 용융지수가 8g/10분(230℃, 2.16 Kgf) 미만인 것이면 성형가공성이 저하되고, 150g/10분(230℃, 2.16 Kgf)을 초과하면 충격강도가 저하되는 문제점이 있다.The polypropylene resin may have a melt index of 8 to 150 g / 10 min (230 DEG C, 2.16 Kgf). If the polypropylene resin used has a melt index of less than 8 g / 10 min (230 캜, 2.16 Kgf), the molding processability is deteriorated. If the melt index exceeds 150 g / 10 min (230 캜, 2.16 Kgf) .
또한, 열가소성 탄성체 고무로는 그 구성의 한정은 없으나, 바람직하게는 에틸렌과 C2 ~ C10의 α-올레핀의 공중합체가 사용될 수 있다. 이 때, 상기α-올레핀으로 그 구성의 한정은 없으나 예를 들면, 프로필렌, 부텐, 펜텐, 헥센, 프로펜, 옥텐 등이 사용될 수 있다. 열가소성 탄성체 고무는 더욱 바람직하게는 에틸렌-프로필렌 고무(EPR), 에틸렌-프로필렌-디엔 고무(EPDM), 에틸렌-부텐 공중합체(EBR) 에틸렌-옥텐 공중합체(EOR), 및 스티렌-부타디엔(SBR)으로 이루어진 군에서 선택되는 어느 하나 이상을 포함하는 것이 사용될 수 있다.The composition of the thermoplastic elastomer rubber is not limited, but preferably a copolymer of ethylene and a C2-C10 alpha -olefin can be used. At this time, the? -Olefin is not limited in its constitution, but for example, propylene, butene, pentene, hexene, propene, octene and the like can be used. The thermoplastic elastomer rubber is more preferably an ethylene-propylene rubber (EPR), an ethylene-propylene-diene rubber (EPDM), an ethylene-butene copolymer (EBR), an ethylene-octene copolymer (EOR), and a styrene- , And the like.
또한 이들 중에서, 에틸렌-옥텐 공중합체(EOR)의 경우 장측쇄의 옥텐기에 의해 충격강도 개선효과가 가장 우수하며, 상대적으로 저하되는 강성을 최대한 줄일 수 있어 바람직하게 선택될 수 있다. 또한, 에틸렌-부텐 공중합체로서는 바람직하게는 부텐 CO-Mononer함량이 50% 이상 함유한 것을 사용할 수 있으며, 용융지수가 0.5 ~ 150g/10분(190℃, 2.6kgf)이며, 밀도가 0.868 ~ 0.885g/cc인 에틸렌-부텐 공중합체(EBR)가 더욱 바람직하게 사용될 수 있다.Of these, the ethylene-octene copolymer (EOR) has the most excellent impact strength improving effect by the octene group of the long side chain, and can be preferably selected because the relative lowering rigidity can be minimized. The ethylene-butene copolymer preferably has a butene CO-mononer content of 50% or more, and has a melt index of 0.5 to 150 g / 10 min (190 DEG C, 2.6 kgf) and a density of 0.868 to 0.885 g / cc of an ethylene-butene copolymer (EBR) may be more preferably used.
또한 무기 충전재는 내열성 및 강성 보강을 위해 사용되는 성분으로, 그 구성의 한정이 없이 사용될 수 있다. 바람직하게는 탈크, 탄산칼슘, 황산칼슘, 산화마그네슘, 칼슘스테아레이트, 월라스토나이트, 마이카, 실리카, 규산칼슘, 휘스커, 유리섬유, 탄소섬유, 현무암섬유, 점토 및 카본 블랙에서 선택되는 어느 하나 이상을 사용할 수 있다. 무기 충진재의 사용은 함량 증가에 따라 수지 조성물의 강성 및 경도의 증가가 뚜렷한 것이 바람직하며, 따라서, 더욱 바람직하게는 월라스토나이트, 휘스커, 유리섬유 또는 탈크를 이용할 수 있다. 사용되는 무기 충진재의 평균 입경은 1 ~ 30㎛인 것이 바람직하며, 더욱 바람직하게는 5 ~ 10㎛인 것을 사용할 수 있다. 무기 충진재의 평균 입경이 1 ㎛ 미만이면 내열성 및 강성 보강 효과가 충분하게 나타나지 않는 문제가 있을 수 있으며, 평균입경이 30㎛을 초과하면 폴리올레핀 수지 조성물의 압출 성형시 취급 및 작업이 용이하지 않은 문제가 있을 수 있다.The inorganic filler is a component used for heat resistance and reinforcement of rigidity, and can be used without limitation of its constitution. Preferably at least one selected from talc, calcium carbonate, calcium sulfate, magnesium oxide, calcium stearate, wollastonite, mica, silica, calcium silicate, whisker, glass fiber, carbon fiber, basalt fiber, clay and carbon black Can be used. The use of the inorganic filler is preferably such that the stiffness and the hardness of the resin composition increase with the increase of the content. Therefore, more preferably, wollastonite, whisker, glass fiber or talc can be used. The average particle diameter of the inorganic filler used is preferably 1 to 30 占 퐉, more preferably 5 to 10 占 퐉. If the average particle diameter of the inorganic filler is less than 1 탆, there may be a problem that the heat resistance and stiffness reinforcing effect are not sufficiently exhibited. If the average particle diameter exceeds 30 탆, the polyolefin resin composition is not easy to handle and work in extrusion molding Can be.
또한 β-핵제는 폴리올레핀계 수지에 베타결정 구조를 유도하기 위하여 사용되며, 상기 β-핵제의 구체적 예로는, 감마-퀴나크리돈, 델타-퀴나크리돈, 퀴나크리돈퀴논, 인디고졸 및 시바틴 유기 안료(cibantine organic pigment), 다이머 알루미늄산염(dimeric aluminates)으로 변성된 탄산칼슘, 칼슘스테아레이트와 피멜산(pimelic acid)의 혼합물, 2산성의 칼슘염 및 아연염, 아디핀산 또는 수베린산의 디아민, N,N-디시클로헥실-테레프탈아미드, N',N'-디시클로헥실-2,6-나프탈렌-디카르복시아미드, Narpow(Nano rubber powder) 등을 1종 또는 2종 이상을 사용할 수 있으며, 상기 β-핵제는 0.01 ~ 5중량부를 사용하는 것이 바람직하며, 0.01중량부 미만이면 요구되는 수준의 베타결정화가 이루어지지 않으므로 바람직하지 않고, 5중량부를 초과하면 비슷한 수준의 β-결정화도를 보이므로, 바람직하지 않다.The β-nucleating agent is used to induce a β-crystal structure in the polyolefin-based resin. Specific examples of the β-nucleating agent include gamma-quinacridone, delta-quinacridone, quinacridone quinone, indigosol, A cibutine organic pigment, a calcium carbonate modified with dimeric aluminates, a mixture of calcium stearate and pimelic acid, a diacid calcium salt and a zinc salt, an adipic acid or a suberic acid Diamine, N, N-dicyclohexyl-terephthalamide, N ', N'-dicyclohexyl-2,6-naphthalene-dicarboxamide and Narpow (Nano rubber powder) The β-nucleating agent is preferably used in an amount of 0.01 to 5 parts by weight, and if the amount is less than 0.01 part by weight, the desired level of β-crystallization is not achieved. If the amount is more than 5 parts by weight, β- Therefore, It is not recommended.
또한 본 발명의 상기 구현예에 의한 플라스틱 성형품은 그 이용되는 분야에 제한이 없지만, 바람직하게는 자동차 내외장재로 이용될 수 있다. 구체적으로는 범퍼 백빔, 도어모듈, 프론트 엔드 모듈, 선루프 프레임등 고강성 및 고충격특성을 요구하는 자동차 부품에 적용가능하며, 자동차 범퍼로 이용될 수도 있다.
Further, the plastic molded article according to the above embodiment of the present invention is not limited to the field in which it is used, but it can be preferably used as automobile interior and exterior materials. Specifically, it can be applied to automobile parts requiring high rigidity and high impact characteristics such as a bumper back beam, a door module, a front end module, and a sunroof frame, and can also be used as an automobile bumper.
본 발명의 구체예를 하기의 실시예로 더욱 상세하게 설명하되, 본원발명의 범위가 이에 한정되는 것은 아님을 주지한다.Embodiments of the present invention will be described in further detail with reference to the following examples, but it should be understood that the scope of the present invention is not limited thereto.
실시예 1 ~ 3: 폴리올레핀 수지 조성물의 제조Examples 1 to 3: Preparation of polyolefin resin composition
하기의 표1에 기술된 조성비에 따라 실시예 1 ~ 3에 따른 각 원료를 헨셀믹서로 3분 동안 혼합하여 트윈 압출기로 190 ~ 250 ℃의 온도범위에서 압출한 후, 냉각, 고화하여 펠렛 상의 조성물을 얻었다.The raw materials according to Examples 1 to 3 were mixed with a Henschel mixer for 3 minutes according to the composition ratios described in the following Table 1, extruded in a twin extruder at a temperature range of 190 to 250 ° C, cooled and solidified to obtain a pellet- ≪ / RTI >
(중량%)Polypropylene resin
(weight%)
(중량%)Inorganic filler
(weight%)
(중량%)Thermoplastic elastomer
(weight%)
(중량%)β-nucleating agent
(weight%)
무기충전재: KCM6300 (Talc, KOCH)
열가소성 탄성체: DF-605 (부텐 50중량% 이상, Mitsui Chemicals)
β-핵제: VP-101 (SINOPEC)Polypropylene resin: JM-370 (MI 35 g / 10 min, Honam Petrochemical)
Inorganic filler: KCM6300 (Talc, KOCH)
Thermoplastic elastomer: DF-605 (50% by weight or more of butene, Mitsui Chemicals)
β-nucleating agent: VP-101 (SINOPEC)
비교예 1 ~2 : 폴리올레핀 수지 조성물의 제조Comparative Examples 1 and 2: Preparation of polyolefin resin composition
하기의 표 2에 기술된 조성비에 따라 비교예 1~2 에 따른 각 원료를 상기 실시예의 폴리올레핀 수지 조성물의 제조 방법과 같은 방법으로 하여 펠렛 상의 조성물을 얻었다.According to the composition ratios described in the following Table 2, the raw materials according to Comparative Examples 1 and 2 were obtained in the same manner as in the production of the polyolefin resin composition of the above Example to obtain a pellet-like composition.
(중량%)Polypropylene resin
(weight%)
(중량%)Inorganic filler
(weight%)
(중량%)Thermoplastic elastomer
(weight%)
(중량%)β-nucleating agent
(weight%)
비교예 3 : Xenoy 1102
Comparative Example 3: Xenoy 1102
상기 실시예 및 비교예에 따라 얻은 조성물은 용융지수에 따라 180 ~ 280℃의 온도범위에서 사출한 후, 위에 상술한 방법들에 따라 각종 물성들을 측정하였다. 하기와 같은 방법으로 그 물성을 측정하였다.
The compositions obtained according to the Examples and Comparative Examples were injected at a temperature ranging from 180 to 280 ° C according to the melt index, and various physical properties were measured according to the above-described methods. The properties were measured by the following method.
실험예 : 실시예 및 비교예의 폴리올레핀 수지 조성물의 물성 측정Experimental Example: Measurement of physical properties of polyolefin resin compositions of Examples and Comparative Examples
1) 밀도는 ASTM D-1505 법으로 측정하였다1) Density was measured by ASTM D-1505 method
2) 굴곡 탄성율은 ASTM D-790법으로 측정하였으며, 시편규격은 12.7×127×6.4mm이며, 시험조건에서 크로스헤드(Crosshead)의 속도는 28mm/min 였다.2) Flexural modulus was measured by ASTM D-790 method. Specimen specimen was 12.7 × 127 × 6.4 mm. Crosshead speed was 28 mm / min under the test conditions.
3) Izod충격강도는 ASTM D-256법으로 측정하였으며, 시편 규격은 63.5×12.7×3mm 였다. 3) The Izod impact strength was measured by the ASTM D-256 method, and the specimen specification was 63.5 × 12.7 × 3 mm.
상술한 실험예의 방법에 의해 측정된 실시예 및 비교예의 폴리올레핀 수지 조성물의 물성 값들은 하기 표 4에 기재된 바와 같다.The physical properties of the polyolefin resin compositions of Examples and Comparative Examples measured by the methods of the above-mentioned Experimental Examples are as shown in Table 4 below.
(g/cm3)density
(g / cm 3)
(Kg/cm2)Flexural modulus
(Kg / cm 2 )
(kg.cm/cm)
-10℃Izod impact strength
(kg.cm/cm)
-10 ° C
상기 표4에서 볼 수 있듯이, β-핵제를 적정 함량으로 포함하는 실시예 3의 폴리올레핀계 수지 조성물의 경우 β-핵제를 포함하지 않는 비교예 2의 폴리올레핀 수지 조성물보다 굴곡탄성율 및 충격강도가 더 우수하게 나타나는 것을 확인하였으며, 현재 범퍼 백빔 소재로 사용되고 있는 PC/Polyester계 소재인 Xenoy 1102 (비교예 3) 보다 굴곡탄성율 및 충격강도가 우수함을 확인하였다.
As can be seen from Table 4, the polyolefin-based resin composition of Example 3 containing an appropriate amount of β-nucleating agent had better flexural modulus and impact strength than the polyolefin resin composition of Comparative Example 2 which did not contain β-nucleating agent And it was confirmed that the flexural modulus and the impact strength were superior to those of the PC / polyester material Xenoy 1102 (Comparative Example 3) used as the bumper back beam material.
따라서, 이러한 실시예의 폴리올레핀 수지 조성물 및 이를 포함하는 플라스틱 성형품은 고강성, 내충격성 및 우수한 기계적 물성을 요구하는 재료에 널리 이용될 수 있으며, 또한 소재 밀도가 낮기 때문에 경량화 자동차 부품에 개발에 적합함을 확인하였다.
Therefore, the polyolefin resin composition and the plastic molded article containing the polyolefin resin composition of this embodiment can be widely used for materials requiring high rigidity, impact resistance and excellent mechanical properties, and are suitable for development in lightweight automobile parts because of low material density Respectively.
Claims (12)
상기 폴리올레핀계 수지는 상기 β-핵제로 인해 β-결정화된 구조를 갖는 것을 특징으로 하는 폴리올레핀계 수지 조성물.
15 to 97.99% by weight of a polyolefin resin, 1 to 40% by weight of a thermoplastic elastomer rubber, 1 to 40% by weight of an inorganic filler and 0.01 to 5% by weight of a?
Wherein the polyolefin-based resin has a? -Crystallized structure due to the? -Cracking agent.
상기 혼합물을 단축압출기, 이축압출기 또는 다축압출기를 이용하여 압출온도 150~260℃, 스크류 회전속도 100~900rpm로 압출하는 단계를 포함하고,
상기 폴리올레핀계 수지는 상기 β-핵제로 인해 β-결정화된 구조를 갖는 것을 특징으로 하는 폴리올레핀계 수지 조성물을 제조하는 방법.Mixing 15 to 97.99% by weight of a polyolefin resin, 1 to 40% by weight of a thermoplastic elastomer rubber, 1 to 40% by weight of an inorganic filler, and 0.01 to 5% by weight of a?
Extruding the mixture at an extrusion temperature of 150 to 260 DEG C and a screw rotation speed of 100 to 900 rpm using a single screw extruder, a twin screw extruder or a multi-screw extruder,
Wherein the polyolefin-based resin has a? -Crystallized structure due to the? -Cracking agent.
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| KR20140106950A (en) | 2014-09-04 |
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