KR20140059377A - A polypropylene resin composition reinforced with a long glass fiber and molded article using the same - Google Patents
A polypropylene resin composition reinforced with a long glass fiber and molded article using the same Download PDFInfo
- Publication number
- KR20140059377A KR20140059377A KR1020120125721A KR20120125721A KR20140059377A KR 20140059377 A KR20140059377 A KR 20140059377A KR 1020120125721 A KR1020120125721 A KR 1020120125721A KR 20120125721 A KR20120125721 A KR 20120125721A KR 20140059377 A KR20140059377 A KR 20140059377A
- Authority
- KR
- South Korea
- Prior art keywords
- weight
- resin composition
- polypropylene resin
- fiber
- long
- Prior art date
Links
Classifications
-
- 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
- C08L23/12—Polypropene
-
- 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
-
- 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
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
-
- 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
- C08L23/14—Copolymers of propene
- C08L23/142—Copolymers of propene at least partially crystalline copolymers of propene with other olefins
-
- 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
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
Description
본 발명은 장섬유 강화 수지 조성물에 관한 것으로, 보다 구체적으로는 성형품의 기계적 특성을 보다 강화시킬 수 있는 장섬유 강화 폴리프로필렌 수지 조성물 및 이를 이용하여 제조된 수지 성형품에 관한 것이다.
More particularly, the present invention relates to a long fiber-reinforced polypropylene resin composition capable of further enhancing the mechanical properties of a molded article and a resin molded article produced using the same.
플라스틱을 자동차의 내장재로 사용하기 위해서는 내충격성, 내약품성 및 성형성 등의 기본적인 조건이 만족되어야 한다. 이에, 상기 물성을 포함하고 있는 폴리카보네이트와 아크로니트릴-부타디엔-스티렌 공중합체(ABS)의 혼합물, 또는 아크로니트릴-부타디엔-스티렌 공중합체에 유리섬유(GF)를 강화시킨 엔지니어링 플라스틱(EP) 재료가 사용되어 왔다. In order to use plastic as an automobile interior material, basic conditions such as impact resistance, chemical resistance and moldability must be satisfied. Thus, a mixture of polycarbonate and acrylonitrile-butadiene-styrene copolymer (ABS) containing the above properties, or an engineering plastic (EP) material reinforced with glass fiber (GF) in an acrylonitrile-butadiene- Have been used.
특히, 아크로니트릴-부타디엔-스티렌 공중합체에 유리섬유(GF)를 강화시킨 장섬유 강화 열가소성 고분자 소재는 재활용 가능성 및 성형 용이성 등의 장점과 단섬유 강화 고분자 소재 대비 뛰어난 기계적 물성 및 저선팽창 계수 등의 우수한 물성 특성으로 인해 가전, 건자재 등 산업 전반에 거쳐 사용되고 있으며 특히 경량화와 리사이클링 특성이 요구되는 자동차 산업에서의 사용 용도가 확대되고 있다. 그러나, 상기 수지는 그 물성은 우수하나, 매우 고가이고 내약품성 및 리싸이클성이 폴리올레핀계 수지, 특히 프로필렌계 수지에 비해 열세인 단점을 지니므로 점차 폴리프로필렌 수지조성물로 대체되고 있는 실정이다.Particularly, a long fiber-reinforced thermoplastic polymer material reinforced with glass fiber (GF) in an acrylonitrile-butadiene-styrene copolymer has advantages such as recyclability and ease of molding, excellent mechanical properties and low coefficient of linear expansion Due to its excellent physical properties, it is used throughout the industry, such as home appliances and building materials. Especially, it is being used in automobile industry where light weight and recycling characteristics are required. However, the above resin is excellent in physical properties, but is extremely expensive, and its chemical resistance and recyclability have a disadvantage that it is inferior to a polyolefin-based resin, particularly a propylene-based resin, and is gradually replaced by a polypropylene resin composition.
근래, 폴리올레핀계 수지인 폴리에틸렌이나 폴리프로필렌은 종래의 폴리프로필렌 수지보다 성형성, 내충격성, 내약품성 등이 뛰어나고 저비중 및 저가의 장점을 가지고 있기 때문에 자동차의 범퍼 등의 외장재와 각종 필러 등의 내장재 용도로 폭 넓게 사용되고 있다. 그러나, 이들 또한 기존의 엔지니어링 플라스틱 재료 대비하여 강성과 내열성이 떨어지기 때문에 두께 증대, 리브 보강 등의 구조 보강이 반드시 이루어져야 한다는 문제점이 있어 이에 대한 개선의 필요성이 요구된다.
In recent years, polyethylene or polypropylene, which is a polyolefin resin, is superior to conventional polypropylene resins in moldability, impact resistance and chemical resistance, and has advantages of low specific gravity and low cost. Therefore, And has been widely used for various purposes. However, they also have a problem that structural reinforcement such as thickness increase and rib reinforcement must be performed because the rigidity and heat resistance are lower than those of existing engineering plastic materials, and thus there is a need for improvement thereof.
본 발명의 목적은 충격강도가 우수한 장섬유 폴리프로필렌 수지 조성물을 제공하기 위함이다.An object of the present invention is to provide a long-fiber polypropylene resin composition excellent in impact strength.
본 발명의 목적은 저비중의 장섬유 폴리프로필렌 수지 조성물을 제공하기 위함이다.An object of the present invention is to provide a long-fiber polypropylene resin composition having a low specific gravity.
본 발명의 다른 목적은 유동성이 우수한 장섬유 폴리프로필렌 수지 조성물을 제공하기 위함이다.Another object of the present invention is to provide a long-fiber polypropylene resin composition having excellent flowability.
본 발명의 또 다른 목적은 장섬유 폴리프로필렌 수지 조성물로 제조된 자동차용 크래쉬 패드를 제공하기 위함이다.
It is still another object of the present invention to provide a crash pad for an automobile made of a long-fiber polypropylene resin composition.
본 발명의 일 관점은 (A) 프로필렌 단일중합체 30 내지 100 중량% 및 프로필렌-에틸렌 공중합체 0 내지 70 중량%로 이루어진 매트릭스 수지 100 중량부에 대하여, (B) 장섬유 50 내지 70 중량부; (C) 스티렌계 중합체, 디엔계 중합체 및 스티렌-디엔계 공중합체로 이루어진 군에서 선택된 비닐계 화합물 20 내지 50 중량부; 및 (D) 길이 5 내지 20mm인 섬유충전재 1 내지 5 중량부를 포함하는 장섬유 폴리프로필렌 수지 조성물에 관한 것이다One aspect of the present invention relates to a thermoplastic resin composition which comprises (A) from 50 to 70 parts by weight of (B) long fibers, based on 100 parts by weight of a matrix resin comprising 30 to 100% by weight of a propylene homopolymer and 0 to 70% by weight of a propylene- (C) 20 to 50 parts by weight of a vinyl compound selected from the group consisting of a styrene-based polymer, a diene-based polymer and a styrene-diene-based copolymer; And (D) 1 to 5 parts by weight of a fibrous filler having a length of 5 to 20 mm.
상기 장섬유(B)는 직경이 3 내지 100 미크론인 유리섬유일 수 있다.The long fibers (B) may be glass fibers having a diameter of 3 to 100 microns.
상기 섬유충전재(D)는 직경이 3 내지 100 미크론이고 원통형 또는 다각형 단면을 갖는 섬유상 또는 다발구조이며, 탄소섬유, 현무암 섬유, 고분자 섬유, 및 이들의 혼합물로 이루어진 군에서 선택된 1종 이상일 수 있다.The fiber filler (D) is a fibrous or bundle structure having a diameter of 3 to 100 microns and a cylindrical or polygonal cross section, and may be at least one selected from the group consisting of carbon fibers, basalt fibers, polymer fibers, and mixtures thereof.
상기 프로필렌 단일중합체는 고결정성 수지이고, 용융지수(MeltIndex)가 230℃에서 10 내지 25(g/10min)이며, 아이소택틱인덱스(IsotacticIndex)가 96% 이상일 수 있다.The propylene homopolymer is a highly crystalline resin having a melt index (MeltIndex) of 10 to 25 (g / 10 min) at 230 DEG C and an isotactic index of 96% or more.
상기 프로필렌-에틸렌 공중합체의 용융지수(MeltIndex)는 230℃에서 100 내지 2,000(g/10min)이며, 프로필렌 단량체와 에틸렌 단량체가 5 : 1 내지 25 : 1의 중량비로 공중합될 수 있다.The melt index (MeltIndex) of the propylene-ethylene copolymer is from 100 to 2,000 (g / 10 min) at 230 DEG C, and the propylene monomer and the ethylene monomer can be copolymerized in a weight ratio of 5: 1 to 25: 1.
상기 비닐계 화합물은 용융지수가 230℃에서 10 내지 40(g/10min)일 수 있다.The vinyl compound may have a melt index of from 10 to 40 (g / 10 min) at 230 캜.
본 발명의 다른 관점은 상기 장섬유 강화 폴리프로필렌 수지 조성물로 제조된 자동차용 크래쉬 패드에 관한 것이다.
Another aspect of the present invention relates to an automotive crash pad made of the long-fiber-reinforced polypropylene resin composition.
본 발명의 장섬유 폴리프로필렌 수지 조성물은 충격강도 및 유동성이 우수하고, 저비중이므로 크래쉬 패드 등의 자동차 내외장재에 사용시 박막성형 및 경량화가 가능하다.
The long-fiber polypropylene resin composition of the present invention is excellent in impact strength and fluidity and has a low specific gravity, so that it can be formed into a thin film and lightweight when used in automobile interior and exterior materials such as crash pads.
본 발명의 장섬유 강화 폴리프로필렌 수지 조성물은 (A) 프로필렌 단일중합체 30 내지 100 중량% 및 프로필렌-에틸렌 공중합체 0 내지 70 중량%로 이루어진 매트릭스 수지 100 중량부에 대하여, (B) 장섬유 50 내지 70 중량부; (C) 스티렌계 중합체, 디엔계 중합체 및 스티렌-디엔계 공중합체로 이루어진 군에서 선택된 비닐계 화합물 20 내지 50 중량부; 및 (D) 길이 5 내지 20mm인 섬유충전재 1 내지 5 중량부를 포함한다
The long fiber-reinforced polypropylene resin composition of the present invention comprises (A) 100 parts by weight of a matrix resin comprising 30 to 100% by weight of a propylene homopolymer and 0 to 70% by weight of a propylene- 70 parts by weight; (C) 20 to 50 parts by weight of a vinyl compound selected from the group consisting of a styrene-based polymer, a diene-based polymer and a styrene-diene-based copolymer; And (D) 1 to 5 parts by weight of a fibrous filler having a length of 5 to 20 mm
이하, 본 발명을 구체적으로 살펴보기로 한다.
Hereinafter, the present invention will be described in detail.
본 발명의 장섬유 강화 폴리프로필렌 수지 조성물은 장섬유가 함침되는 매트릭스 수지(A)로서 폴리프로필렌 수지가 사용할 수 있다. 상기 폴리프로필렌 수지는 프로필렌 모노머를 주성분으로 하는 프로필렌 단일중합체와 에틸렌이 함유된 프로필렌-에틸렌 공중합체로 구성된 결정성 폴리머이며, 프로필렌-에틸렌 공중합체 단독 또는 프로필렌 단일중합체와 혼합하여 사용할 수 있다.
The long fiber-reinforced polypropylene resin composition of the present invention may be a polypropylene resin as the matrix resin (A) impregnated with long fibers. The polypropylene resin is a crystalline polymer composed of a propylene homopolymer having propylene monomer as a main component and a propylene-ethylene copolymer containing ethylene, and may be used alone or in combination with propylene homopolymer.
상기 프로필렌 단일중합체는 13C-NMR로 측정한 펜타드 분율(%mmmm)이 96 % 이상이고, 바람직하기로는 96.5 % 이상, 더욱 바람직하기로는 97 % 이상인 것을 사용한다. 이때, %mmmm분율이 96 % 미만이면 강성, 내열성 등이 떨어지게 된다. 또한, 프로필렌 중합체는 135 ℃ 데카린 중에서 측정한 극한점도[η]가 0.7 ∼ 2.5 ㎗/g, 바람직하기로는 0.85 ∼ 2.2 ㎗/g, 더욱 바람직하게는 0.9 ∼ 2.0 ㎗/g이다. 만일, 극한점도가 0.7 ㎗/g 미만이면 충격강도가 떨어지고, 2.5 ㎗/g을 초과하면 성형성이 저하된다. 상기 프로필렌 단일 중합체는 용융지수(MeltIndex)가 230℃에서 10 내지 25(g/10min)인 것이 바람직하다.
The propylene homopolymer has a pentad fraction (% mmmm) of 96% or more, preferably 96.5% or more, more preferably 97% or more, as measured by 13C-NMR. At this time, if the% mmmm fraction is less than 96%, the rigidity, heat resistance and the like are deteriorated. The propylene polymer has an intrinsic viscosity [?] Of 0.7 to 2.5 dl / g, preferably 0.85 to 2.2 dl / g, more preferably 0.9 to 2.0 dl / g as measured in decalin at 135 占 폚. If the intrinsic viscosity is less than 0.7 dl / g, the impact strength is lowered, and if it exceeds 2.5 dl / g, the moldability is lowered. The propylene homopolymer preferably has a melt index (MeltIndex) of from 10 to 25 (g / 10 min) at 230 캜.
프로필렌-에틸렌 공중합체는 크실렌 추출물의 135 ℃ 데카린 중에서의 극한점도[η]가 3.0 ∼ 6.0 ㎗/g인 것을 사용한다. 여기서, 극한점도가 3.0 ㎗/g 미만이면 충격강도가 저하된다. 보다 바람직한 극한점도는 3.5 ㎗/g 이상, 특히 4.0 ㎗/g 이상이다. 또한, 용융지수(MeltIndex)는 230℃에서 100 내지 2,000(g/10min)이며, 프로필렌 단량체와 에틸렌 단량체는 5 : 1 내지 25 : 1의 중량비로 공중합되는 것이 바람직하다.As the propylene-ethylene copolymer, the xylene extract has an intrinsic viscosity [?] In decalin at 135 占 폚 of 3.0 to 6.0 dl / g. If the intrinsic viscosity is less than 3.0 dl / g, the impact strength is lowered. More preferably, the intrinsic viscosity is at least 3.5 dl / g, especially at least 4.0 dl / g. The melt index (MeltIndex) is preferably from 100 to 2,000 (g / 10 min) at 230 DEG C, and the propylene monomer and the ethylene monomer are copolymerized in a weight ratio of 5: 1 to 25: 1.
그리고, 프로필렌 단일중합체와 프로필렌-에틸렌 공중합체의 혼합비는 0 ∼ 30 : 100 ∼ 70 중량%, 더욱 바람직하기로는 0 ∼ 20 : 100 ∼ 80 중량%의 것이 충격강도와 유동성 발란스 면에서 바람직하다. 프로필렌 단일중합체는 내충격성이 부족하고, 프로필렌-에틸렌 공중합체는 성형성, 강성, 내열성 등이 부족하여 상기 두 성분이 혼합되어 상호보완적으로 사용될 수 있다.
The mixing ratio of the propylene homopolymer to the propylene-ethylene copolymer is preferably 0 to 30: 100 to 70% by weight, more preferably 0 to 20: 100 to 80% by weight in terms of impact strength and fluidity balance. The propylene homopolymer lacks impact resistance, and the propylene-ethylene copolymer is insufficient in moldability, rigidity, heat resistance, and the like, and the two components may be mixed and used complementarily.
상기 매트릭스 수지에 함침되는 장섬유(B)로는 직경이 3 내지 100 미크론인 유리섬유를 사용할 수 있다. 상기 장유리 섬유는 E 글라스(E GLASS), 내식성을 개량한 이시알 글라스(ECR GLASS), 고강도의 에스,에스-2,알,티 글라스(S,S-2,R,T GLASS), 내산성의 씨,에이 글라스(C.A GLASS) 등을 사용할 수 있으며, 특히 이-글라스(E-GLASS)가 상업적인 측면에서 보다 바람직하다. 매트릭스 수지에 함침된 장섬유펠렛은 8 ∼ 16 mm의 촙스트랜드(chop strand)를 사용하는데 펠렛의 길이가 8 mm 미만이면 잔존 섬유 길이가 낮아져 내충격성이 저하되며, 16 mm를 초과하면 제품 가공 및 성형성이 저하된다. 이러한 장유리 섬유는 상기 매트릭스 수지 100 중량부에 대하여 50 내지 70 중량부로 포함되는 것이 바람직하다. 50 중량부 미만이면 강성 및 내열성이 저하되고, 70 중량부를 초과하면 흐름성이 급감하여 성형성이 저하된다.
As the long fibers (B) impregnated in the matrix resin, glass fibers having a diameter of 3 to 100 microns may be used. The long glass fiber is composed of E glass, ECR glass improved in corrosion resistance, S, S-2, Al and T glass with high strength, S, S-2, (CA GLASS) and the like can be used. Especially, E-GLASS is more preferable from a commercial point of view. The long fiber pellets impregnated into the matrix resin use chop strands of 8 to 16 mm. If the pellets are less than 8 mm in length, the residual fiber length is lowered to lower the impact resistance. If the pellets are longer than 16 mm, The moldability is deteriorated. Preferably, the long fibers are included in an amount of 50 to 70 parts by weight based on 100 parts by weight of the matrix resin. When the amount is less than 50 parts by weight, rigidity and heat resistance are lowered. When the amount is more than 70 parts by weight, the flowability is reduced and the formability is deteriorated.
본 발명의 수지 조성물은 상기 매트릭스 수지 외에 스티렌계 중합체, 디엔계 중합체 및 스티렌-디엔계 공중합체로 이루어진 군에서 선택된 비닐계 화합물(C)을 더 포함할 수 있다. 상기 스티렌계 중합체, 디엔계 중합체, 또는 이들 공중합체는 용융지수가 230℃에서 10 내지 40(g/10min)인 것이 바람직하다. 상기 스티렌계 중합체는 스티렌계 모노머로서 스티렌, α-메틸스티렌, α-에틸스티렌, p-메틸스티렌 등이 중합하여 제조할 수 있으며, 바람직하게는 스티렌이다. 디엔계 중합체는 모노머로서 부타디엔, 이소프렌 또는 이들 조합으로 중합하여 제조할 수 있다. The resin composition of the present invention may further comprise, in addition to the matrix resin, a vinyl compound (C) selected from the group consisting of a styrene polymer, a diene polymer and a styrene-diene copolymer. It is preferable that the styrene type polymer, the diene type polymer, or the copolymer has a melt index of 10 to 40 (g / 10 min) at 230 캜. The styrene-based polymer may be produced by polymerizing styrene,? -Methylstyrene,? -Ethylstyrene, p-methylstyrene, or the like as the styrene monomer, and preferably styrene. The diene polymer can be produced by polymerizing butadiene, isoprene or a combination thereof as a monomer.
상기 비닐계 화합물(C)은 매트릭스 수지 100 중량부에 대하여 20 내지 50 중량부로 포함하는 것이 충격강도의 확보 면에서 바람직하다.
It is preferable that the vinyl compound (C) is contained in an amount of 20 to 50 parts by weight based on 100 parts by weight of the matrix resin from the viewpoint of securing the impact strength.
본 발명의 수지 조성물은 길이 5 내지 20mm인 섬유충전재(D)를 더 포함 할 수 있다. 상기 섬유충전재는 일 예로서, 직경이 3 내지 100 미크론이고 원통형 또는 다각형 단면을 갖는 섬유상 또는 다발구조이며, 탄소섬유, 현무암 섬유, 고분자 섬유, 및 이들의 혼합물로 이루어진 군에서 선택된 1종 이상일 수 있다.The resin composition of the present invention may further comprise a fiber filler (D) having a length of 5 to 20 mm. The fibrous filler is, for example, a fibrous or bundle structure having a diameter of 3 to 100 microns and a cylindrical or polygonal cross section, and may be at least one selected from the group consisting of carbon fibers, basalt fibers, polymer fibers, and mixtures thereof .
상기 섬유충전재는 매트릭스 수지 100 중량부에 대하여 1 내지 15 중량부로 포함되는 것이 강도와 성형성을 확보하는 면에서 바람직하다. The fibrous filler is preferably contained in an amount of 1 to 15 parts by weight based on 100 parts by weight of the matrix resin, from the viewpoint of ensuring strength and moldability.
본 발명에서 첨가될 수 있는 첨가제로는 통상적인 것으로 예를 들면 산화방지제, 중화제, 커플링제, 대전방지제 등이며, 이는 적정 함량범위 내에서 함유시킨다. 여기서, 산화방지제로는 페놀계 산화방지제, 포스파이트계 산화방지제, 티오디프로피오네이트 시너지스트 등이 사용될 수 있고, 중화제로는 칼슘 스테아레이트, 산화아연 등이 사용될 수 있고, 커플링제는 말레인산 등의 반응성 관능기를 가진 고분자 등이 사용될 수 있으며, 이들 또는 다른 첨가제들은 이 분야에서 통상의 지식을 가진 자에 의해서 용이하게 사용될 수 있다.
The additives that can be added in the present invention are conventional ones such as antioxidants, neutralizers, coupling agents, antistatic agents and the like, which are contained within a proper amount range. Examples of the antioxidant include phenol-based antioxidants, phosphite-based antioxidants, thiodipropionate synergists, etc. Examples of the neutralizing agent include calcium stearate and zinc oxide. Coupling agents include maleic acid Reactive functional groups, and the like, and these or other additives may be easily used by those skilled in the art.
이와 같은 성분 및 조성으로 최종적으로 제조된 장섬유 강화 폴리프로필렌 수지 조성물의 인장강도는 750 MPa(ISO527) 이상, 굴곡강도는 850 MPa(ISO178) 이상, 굴곡탄성율은 35,000 MPa(ISO178) 이상, 충격강도는 33 KJ/㎡(ISO180) 이상인 것이 바람직하다
The long fiber-reinforced polypropylene resin composition finally produced with such components and compositions has a tensile strength of 750 MPa (ISO 527) or more, a flexural strength of 850 MPa (ISO 178) or more, a flexural modulus of 35,000 MPa (ISO 178) Is preferably at least 33 KJ / m < 2 > (ISO 180)
상기와 같은 성분으로 배합되는 본 발명의 장섬유 강화 폴리프로필렌 수지 조성물의 제조 방법은 특정한 것으로 한정되지 않는다. 예를 들어, 본 발명의 장섬유 강화 폴리프로필렌 수진 조성물은 상기 (A) 성분을 통상의 기계적 혼련법에 의하여 용융하여 제조한 것과 (B) 성분을 예열 처리하여 (A) 성분의 혼합물과 (B) 성분과의 계면 결합을 시키기 위해 함침 방법에 의해 코팅하며, 냉각 및 고화시켜 절단기에 의해 1차 혼합물 펠렛을 제조한다. 구체적으로 (A) 성분의 혼합은 싱글 스크류 압출기, 트윈 스크류 압출기, 다륜 스크류 압출기 등의 일반적인 용융 혼련기를 이용하는 방법을 선택하여 사용할 수 있으며, 혼련 온도는 200 ∼ 240℃에서 행하는 것이 바람직하다. 보다 상세하게는 1차 혼합물은 로빙형 유리섬유로부터 풀어내어 전처리 설비에 의해 예열 처리된 섬유 다발((B) 성분)을 함침, 성형 설비에서 접촉하게 하여 섬유 다발((B) 성분)을 구성하는 개개의 유리섬유 필라멘트를 함침시키고 성형 설비 말단에 위치한 부싱 노즐을 통해 다양한 유리섬유 함량을 조절한 뒤 이를 냉각, 고화시켜 절단기에 의해 임의 형상의 펠렛으로 절단하여 건조시켜 본 발명의 수지를 얻는다. 이렇게 제조된 1차 혼합물 펠렛은 상기 (C) 성분과 (D) 성분을 통상의 기계적 혼련법에 거쳐 제조된 임의 형상의 펠렛과 다시 혼합하여, 최종 장섬유 강화 폴리프로필렌 수지 조성물을 얻는다.The method for producing the long fiber-reinforced polypropylene resin composition of the present invention, which is blended with the above components, is not limited to a specific one. For example, the long fiber-reinforced polypropylene resin composition of the present invention can be produced by melting the component (A) by a conventional mechanical kneading method and preheating the component (B) to obtain a mixture of the component (A) ) Component, and cooled and solidified to prepare a primary mixture pellet by a cutter. Concretely, the component (A) may be mixed by using a general melt kneader such as a single screw extruder, a twin screw extruder or a multi-screw extruder. The kneading temperature is preferably 200 to 240 ° C. More specifically, the primary mixture is unwound from roving-type glass fibers and impregnated with a fiber bundle (component (B)) preheated by a pretreatment facility to make it contact with the molding equipment to constitute a fiber bundle (component (B) Individual glass fiber filaments are impregnated and various glass fiber contents are controlled through a bushing nozzle located at the end of the molding equipment. The glass fibers are cooled and solidified and cut into pellets of arbitrary shape by a cutter and dried to obtain the resin of the present invention. The primary mixture pellets thus obtained are mixed again with the pellets of arbitrary shape prepared by the conventional mechanical kneading method, and the components (C) and (D) are mixed again to obtain the final long fiber reinforced polypropylene resin composition.
본 발명의 조성물에 대한 성형 가공법의 경우 압출성형, 중공성형, 사출성형, 시트성형 등이 모두 가능하여 특히 한정되는 것은 없으나, 사출성형이 가장 적합하다.In the case of the molding process for the composition of the present invention, extrusion molding, blow molding, injection molding, sheet molding and the like are both possible, and injection molding is most suitable, though not particularly limited.
Claims (7)
(B) 장섬유 50 내지 70 중량부;
(C) 스티렌계 중합체, 디엔계 중합체 및 스티렌-디엔계 공중합체로 이루어진 군에서 선택된 비닐계 화합물 20 내지 50 중량부; 및
(D) 길이 5 내지 20mm인 섬유충전재 1 내지 15 중량부를 포함하는 장섬유 강화 폴리프로필렌 수지 조성물.
(A) 100 parts by weight of a matrix resin composed of 30 to 100% by weight of a propylene homopolymer and 0 to 70% by weight of a propylene-ethylene copolymer,
(B) 50 to 70 parts by weight of long fiber;
(C) 20 to 50 parts by weight of a vinyl compound selected from the group consisting of a styrene-based polymer, a diene-based polymer and a styrene-diene-based copolymer; And
(D) 1 to 15 parts by weight of a fiber filler having a length of 5 to 20 mm.
The long-fiber-reinforced polypropylene resin composition according to claim 1, wherein the long fibers (B) are glass fibers having a diameter of 3 to 100 microns.
The method of claim 1, wherein the fiber filler (D) is a fibrous or bundle structure having a diameter of 3 to 100 microns and a cylindrical or polygonal cross-section and is selected from the group consisting of carbon fibers, basalt fibers, polymer fibers, Wherein the long-fiber-reinforced polypropylene resin composition is at least one kind of long-fiber-reinforced polypropylene resin composition.
아이소택틱인덱스(Isotactic index)가 96% 이상인 것을 특징으로 하는 장섬유 강화 폴리프로필렌 수지 조성물.
The propylene homopolymer according to claim 1, wherein the propylene homopolymer is a highly crystalline resin and has a melt index (MeltIndex) of 10 to 25 (g / 10 min) at 230 DEG C,
Wherein the isotactic index is 96% or more.
The process according to claim 1, wherein the melt index (MeltIndex) of the propylene-ethylene copolymer is from 100 to 2,000 (g / 10 min) at 230 DEG C and the propylene monomer and the ethylene monomer are copolymerized in a weight ratio of 5: 1 to 25: Wherein the polypropylene resin composition is a polypropylene resin composition.
The long-fiber-reinforced polypropylene resin composition according to claim 1, wherein the vinyl-based compound has a melt index of from 10 to 40 (g / 10 min) at 230 ° C.
A crash pad for an automobile produced from the long-fiber reinforced polypropylene resin composition according to any one of claims 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120125721A KR101549663B1 (en) | 2012-11-07 | 2012-11-07 | A polypropylene resin composition reinforced with a long glass fiber and molded article using the same |
| CN201310257702.3A CN103804781A (en) | 2012-11-07 | 2013-06-26 | A polypropylene resin composition reinforced with a long fiber and molded article using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120125721A KR101549663B1 (en) | 2012-11-07 | 2012-11-07 | A polypropylene resin composition reinforced with a long glass fiber and molded article using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20140059377A true KR20140059377A (en) | 2014-05-16 |
| KR101549663B1 KR101549663B1 (en) | 2015-09-03 |
Family
ID=50702199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020120125721A KR101549663B1 (en) | 2012-11-07 | 2012-11-07 | A polypropylene resin composition reinforced with a long glass fiber and molded article using the same |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101549663B1 (en) |
| CN (1) | CN103804781A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160057528A (en) * | 2014-11-13 | 2016-05-24 | 현대모비스 주식회사 | Polyolefin elastomer composition |
| US10550250B2 (en) | 2016-05-02 | 2020-02-04 | Hyundai Motor Company | Compositions of polypropylene having excellent tactile sensation and dimensional stability |
| US11007694B2 (en) | 2016-10-31 | 2021-05-18 | Hyundai Motor Company | Interior parts for vehicles and method of molding the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4324030A1 (en) * | 1993-07-17 | 1995-01-19 | Hoechst Ag | Plastic molding compound for the production of molded parts with decorative effect |
| KR100300184B1 (en) | 1998-06-17 | 2001-10-27 | 이정국 | Fiber-reinforced resin composition and its manufacturing method |
| KR100666769B1 (en) * | 2005-10-17 | 2007-01-09 | 현대자동차주식회사 | Long fiber reinforced polypropylene composition and door shield module plate produced with the same |
| KR100811922B1 (en) | 2007-02-13 | 2008-03-10 | 현대자동차주식회사 | Resin composition of polypropylene |
| KR100854322B1 (en) * | 2007-04-30 | 2008-08-26 | 지에스칼텍스 주식회사 | Pellet reinforced by long fiber and article manufactured by using the same |
-
2012
- 2012-11-07 KR KR1020120125721A patent/KR101549663B1/en active IP Right Grant
-
2013
- 2013-06-26 CN CN201310257702.3A patent/CN103804781A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160057528A (en) * | 2014-11-13 | 2016-05-24 | 현대모비스 주식회사 | Polyolefin elastomer composition |
| US10550250B2 (en) | 2016-05-02 | 2020-02-04 | Hyundai Motor Company | Compositions of polypropylene having excellent tactile sensation and dimensional stability |
| US11007694B2 (en) | 2016-10-31 | 2021-05-18 | Hyundai Motor Company | Interior parts for vehicles and method of molding the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101549663B1 (en) | 2015-09-03 |
| CN103804781A (en) | 2014-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101459951B1 (en) | Compositions of polypropylene having excellent tectility and scratch resistance | |
| KR100854322B1 (en) | Pellet reinforced by long fiber and article manufactured by using the same | |
| KR101526742B1 (en) | A resin composition of carbon fiber reinforced polypropylene with excellent molding property | |
| US20200131352A1 (en) | Thermoplastic composite, method of making thermoplastic composite, and injection-molded product | |
| CN107793747B (en) | Long carbon fiber-reinforced thermoplastic resin composition for foam injection and molded article prepared using the same | |
| JP2014532789A (en) | Polypropylene composition for foaming | |
| CN103044764A (en) | High-toughness long-glass-fiber reinforced polypropylene composite material and method for preparing same | |
| CN103242586B (en) | Low-temperature impact-resistant and low stress whitening-resistant long glass fiber reinforced polypropylene material, and preparation method and application thereof | |
| KR101481218B1 (en) | The Manufacturing Method of Direct Long Glass Fiber Thermoplastics Using In-line Compounding Process | |
| KR101549663B1 (en) | A polypropylene resin composition reinforced with a long glass fiber and molded article using the same | |
| CA2812746C (en) | Flexible strength members for wire cables | |
| KR20160057528A (en) | Polyolefin elastomer composition | |
| US20180134885A1 (en) | Polyolefine Resin Composition, Polyolefine Master Batch, Method of Manufacturing Polyolefine Master Batch, and Article Formed of the Same | |
| JP2002085109A (en) | Toe core for safety shoes | |
| JP5111694B2 (en) | Fiber reinforced polyolefin resin composition | |
| US20170044358A1 (en) | Fiber-reinforced plastic composition, and fiber-reinforced composite with improved impact performance, prepared therefrom | |
| JPH1148317A (en) | Hollow molding made of synthetic resin | |
| KR20160069047A (en) | Polyolefin composite resin composition for blow-molded form | |
| KR20030026675A (en) | A polypropylene resin composition reinforced with a long glass fiber | |
| KR101674545B1 (en) | Polyolefin composites for light weigt automotive interior/exterior parts and method for preparing the same | |
| KR100792115B1 (en) | Polypropylene Resin Composition With Excellent Strength And Heat Resistance | |
| CN108570203A (en) | Polypropylene resin composite and its shaped article | |
| WO2024099922A1 (en) | Glass fiber reinforced thermoplastic composition with improved impact resistance | |
| KR101702998B1 (en) | Forming Device of Long Fiber Reinforced Thermoplastic Composite Material and Preparation Method Thereof | |
| KR20210064659A (en) | Polypropylene composite resin composition with excellent impact resistance and molded product using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20180724 Year of fee payment: 4 |
|
| FPAY | Annual fee payment |
Payment date: 20190725 Year of fee payment: 5 |