KR20040106122A - Resin composition using acrylic acid graft polyethylene and manufacturing method thereof - Google Patents

Resin composition using acrylic acid graft polyethylene and manufacturing method thereof Download PDF

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Publication number
KR20040106122A
KR20040106122A KR1020030037351A KR20030037351A KR20040106122A KR 20040106122 A KR20040106122 A KR 20040106122A KR 1020030037351 A KR1020030037351 A KR 1020030037351A KR 20030037351 A KR20030037351 A KR 20030037351A KR 20040106122 A KR20040106122 A KR 20040106122A
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South Korea
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acrylic acid
resin composition
polyethylene
acid graft
weight
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KR1020030037351A
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Korean (ko)
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김억
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현대모비스 주식회사
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Priority to KR1020030037351A priority Critical patent/KR20040106122A/en
Publication of KR20040106122A publication Critical patent/KR20040106122A/en

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/14Peroxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00Making preforms
    • B29B11/06Making preforms by moulding the material
    • B29B11/12Compression moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/02Making granules by dividing preformed material
    • B29B9/06Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/06Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond

Abstract

PURPOSE: A resin composition and its preparation method are provided, to reduce the weight of an instrument panel compared with the product using a PC/ABS material and to improve the adhesive strength with a panel by grafting the acrylic acid having an excellent adhesion to a polyethylene chain. CONSTITUTION: The resin composition comprises 100 parts by weight of acrylic acid-grafted polyethylene comprising 85 wt% of a polyethylene resin and 15 wt% of acrylic acid; and 0.1-20 parts by weight of dicumyl peroxide. The method comprises the steps of mixing a polyethylene resin, acrylic acid and dicumyl peroxide; and vacuum compressing the mixture at 190 deg.C to prepare a resin composition in pellet state.

Description

아크릴산 그래프트 폴리에틸렌을 이용한 수지 조성물 및 그 제조방법{Resin composition using acrylic acid graft polyethylene and manufacturing method thereof}Resin composition using acrylic acid graft polyethylene and manufacturing method

본 발명은 아크릴산 그래프트 폴리에틸렌을 이용한 수지 조성물 및 그 제조방법에 관한 것으로, 특히 자동차 인스트루먼트 패널 코어에 사용되는 종래의 PC/ABS보다 경량화가 가능하며, 패드와의 층접착력이 우수한 수지 조성물 및 그 제조방법에 관한 것이다.The present invention relates to a resin composition using acrylic acid graft polyethylene and a method of manufacturing the same, and in particular, it is possible to reduce the weight of the conventional PC / ABS used in automotive instrument panel cores, a resin composition excellent in layer adhesion with the pad and a method of producing the same. It is about.

일반적으로, 자동차의 인스트루먼트 패널은 표피재인 스킨과, 부드러운 감촉을 제공하기 위한 다공성의 패드와, 이들을 지지하기 위한 코어(core)로 구성된다.In general, an instrument panel of an automobile is composed of a skin, which is a skin material, a porous pad for providing a soft touch, and a core for supporting them.

이러한 인스트루먼트 패널의 제조방법은 아크릴로니트릴-부타디엔-스티렌 공중합체(ABS)와 폴리카보네이트(PC) 또는 폴리프로필렌의 합금으로 코어를 사출 성형하고 폴리염화비닐 시트를 진공 성형하여 인스트루먼트 패널 형상을 별도 성형한 후에, 발포공정에서 코어와 표피재 사이에 폴리우레탄 액을 주입하고 발포시켜 패드층을 형성하였다.The method of manufacturing such an instrument panel is injection molding the core from an alloy of acrylonitrile-butadiene-styrene copolymer (ABS) and polycarbonate (PC) or polypropylene, and separately molding the shape of the instrument panel by vacuum molding a polyvinyl chloride sheet. After that, a polyurethane liquid was injected and foamed between the core and the skin material in the foaming step to form a pad layer.

그러나, 이와 같은 방법에 의해 제조되는 종래의 인스트루먼트 패널에서 코어로 사용되는 PC/ABS는 내약품성, 고중량 등의 문제점이 있고, 또한 폴리프로필렌의 경우에는 저중량과 함께 패드재와의 접착력이 약하여 별도의 처리 공정이 필요하게 되므로 이로 인한 공정의 추가와 원가상승의 문제점이 발생하였다.However, the PC / ABS used as a core in the conventional instrument panel manufactured by the above method has problems such as chemical resistance and high weight, and in the case of polypropylene, it has a low weight and a weak adhesive force with the pad material, and thus is separate. The treatment process is required, which causes problems of additional process and cost increase.

본 발명은 상기의 결점을 해소하기 위한 것으로, 종래의 인스트루먼트 패널의 코어 소재로 사용되어온 PC/ABS보다 경량화할 수가 있으며, 패드재와의 접착력을 강하게 하여 패드재와의 접착을 위한 별도의 처리공정이 필요가 없는 아크릴산 그래프트 폴리에틸렌을 이용한 수지 조성물을 제공하고자 한다.The present invention is to solve the above-mentioned shortcomings, it can be lighter than the PC / ABS used as the core material of the conventional instrument panel, and the separate treatment process for adhesion to the pad material by strengthening the adhesive force with the pad material It is intended to provide a resin composition using acrylic acid graft polyethylene that does not need this.

이러한 본 발명의 아크릴산 그래프트 폴리에틸렌을 이용한 수지 조성물은 폴리에틸렌수지 85wt%와 아크릴산 15wt%의 총중량에 대하여 디-큐밀퍼옥사이드 0.1~20wt%를 포함하므로써 달성된다.The resin composition using the acrylic acid graft polyethylene of the present invention is achieved by containing 0.1-20 wt% of di-cumyl peroxide with respect to the total weight of the polyethylene resin 85wt% and acrylic acid 15wt%.

또한, 이러한 본 발명의 아크릴산 그래프트 폴리에틸렌을 이용한 수지 조성물의 제조방법은 폴리에틸렌수지 85wt%와 아크릴산 15wt%의 총중량에 대하여 디-큐밀퍼옥사이드 0.1~20wt%를 믹싱한 후에 190℃에서 진공 압축하여 펠렛 상태로 제조하는 공정으로써 달성될 수가 있다.In addition, the method for producing a resin composition using the acrylic acid graft polyethylene of the present invention is a pellet state by vacuum compression at 190 ℃ after mixing 0.1 ~ 20wt% of di- cumyl peroxide with respect to the total weight of polyethylene resin 85wt% and acrylic acid 15wt% It can be achieved as a process of manufacturing.

이하, 본 발명의 실시예를 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail.

폴리에틸렌(polyethylene) 수지(한화 제품, Melt index:4)를 헨쉘믹서에 넣은 상태에서 아크릴산(Acrylic acid, Aldrich(미) 제품)을 폴리에틸렌의 중량대비 15wt%를 넣고 디-큐밀퍼옥사이드(di-cumylperoxide, DCP)를 폴리에틸렌과 아크릴산의 총중량대비 1.2wt%를 넣고 20분간 믹싱하였다.With a polyethylene resin (Hanhwa product, Melt index: 4) in a Henschel mixer, acrylic acid (Acrylic acid, Aldrich (US)) was added 15 wt% to the weight of polyethylene and di-cumylperoxide , DCP) was added 1.2wt% to the total weight of polyethylene and acrylic acid and mixed for 20 minutes.

이때, 헨쉘믹서의 온도는 40℃로 설정되었다.At this time, the temperature of the Henschel mixer was set to 40 ° C.

그 후 믹싱된 원료를 압출기로 옮겨 넣어, 가공 중 재료의 산화를 방지하기 위하여 압출기에 진공이 인가되도록 하여 산호의 유입을 막은 상태에서 평균 압출온도 190℃에서 압출하였다.Thereafter, the mixed raw materials were transferred to an extruder, and extruded at an average extrusion temperature of 190 ° C. while preventing the inflow of coral by applying a vacuum to the extruder to prevent oxidation of the material during processing.

압출된 재료는 수조 내에서 식힌 후에 펠리타이저(pelletizer)를 이용하여 펠릿(pallet)의 행태로 제조하였다.The extruded material was prepared in the form of pellets using a pelletizer after cooling in a water bath.

제조된 펠릿은 수분 건조를 위하여 오븐 내에서 100시간 동안 건조하였다.The prepared pellets were dried for 100 hours in an oven for moisture drying.

건조된 펠릿을 사용하여 자동차 인스트루먼트 패널용 코어를 사출성형법으로 제조하였다.The dried pellets were used to prepare cores for automotive instrument panels by injection molding.

종래 PC/ABSConventional PC / ABS 실시예Example 용융 인덱스(g/10min)Melt Index (g / 10min) 6.56.5 5.85.8 비중(g/cm3)Specific gravity (g / cm3) 1.1311.131 0.8860.886 화학적 저항(-)Chemical resistance (-) 방향제 사용시 크랙발생Crack generation when using fragrance 이상없음clear 발포 접착력(Kg/cm2)Foam Adhesion (Kg / cm2) 920920 985985 인장강도(Mpa)Tensile Strength (Mpa) 56.556.5 69.269.2 연신율(%)Elongation (%) 158158 247247 굽힘강도(Mpa)Bending strength (Mpa) 8282 87.887.8 굽힘계수(Mpa)Bending Factor (Mpa) 22652265 21492149 충격강도(J/m)Impact strength (J / m) 637637 654654 열변형온도(℃)Heat deflection temperature (℃) 111.4111.4 116.5116.5

[표 1]은 종래의 PC/ABS와, 본 발명의 실시예를 국내 완성차 회사의 재료규격에 따라 실험하여 얻은 물성을 비교한 것이다.Table 1 compares conventional PC / ABS with physical properties obtained by experimenting with examples of the present invention according to the material specifications of domestic automobile companies.

즉, 본 발명의 실시예에서는 종래의 PC/ABS보다 비중이 작으며, 접착특성이 우수한 아크릴산을 폴리에틸렌 체인에 그래프팅하여 극성을 부여함으로써 발포 접착력에서 우수함을 알 수가 있으며, 화학적 저항이 없어 내약품성에 있어 종래의 PC/ABS보다 우수함을 알 수가 있다.That is, in the embodiment of the present invention, the specific gravity is smaller than that of the conventional PC / ABS, and the acrylic acid having excellent adhesive properties is grafted onto the polyethylene chain to impart polarity, and thus, the foam adhesive force is excellent. In comparison with the conventional PC / ABS can be seen that.

따라서, 본 발명의 실시예에서는 종래의 PC/ABS보다 경량화할 수가 있으며, 종래의 폴리프로필렌에서 문제가 되었던 층접착력과 충격강도에 있어 우수함을 알 수가 있다. 기타 다른 전반적인 물성에 있어서도 종래의 PC/ABS보다 우수한 성능을 나타내었다.Therefore, in the embodiment of the present invention it can be reduced in weight than the conventional PC / ABS, it can be seen that the excellent in the adhesive strength and the impact strength, which was a problem in the conventional polypropylene. In other general physical properties, it showed better performance than conventional PC / ABS.

이상과 같이 본 발명의 아크릴산 그래프트 폴리에틸렌을 이용한 수지 조성물은 폴리에틸렌을 기본 소재로 함으로써, 기존 PC/ABS소재보다 인스트루먼트 패널을경량화할 수가 있으며, 접착특성이 우수한 아크릴산을 폴리에틸렌 체인에 그래프팅하여 극성을 부여함으로써, 패드재와의 접착력도 강하여 별도의 처리 공정없이 사용이 가능하므로 원가절감이 가능한 효과가 있는 발명인 것이다.As described above, the resin composition using the acrylic acid graft polyethylene of the present invention can make the instrument panel lighter than the conventional PC / ABS material by using polyethylene as a base material, and impart polarity by grafting acrylic acid having excellent adhesive properties to the polyethylene chain. By doing so, the adhesive force with the pad material is also strong, so that it can be used without a separate treatment process, and thus it is an invention having an effect of reducing cost.

Claims (2)

폴리에틸렌수지 85wt%와 아크릴산 15wt%의 총중량에 대하여 디-큐밀퍼옥사이드 0.1~20wt%를 포함하는 것을 특징으로 하는 아크릴산 그래프트 폴리에틸렌을 이용한 수지 조성물.A resin composition using acrylic acid graft polyethylene, characterized in that it comprises 0.1-20 wt% of di-cumyl peroxide based on the total weight of polyethylene resin 85wt% and acrylic acid 15wt%. 폴리에틸렌수지 85wt%와 아크릴산 15wt%의 총중량에 대하여 디-큐밀퍼옥사이드 0.1~20wt%를 믹싱한 후에 190℃에서 진공 압축하여 펠렛 상태로 제조하는 공정에 의한 아크릴산 그래프트 폴리에틸렌을 이용한 수지 조성물의 제조방법.A method for producing a resin composition using acrylic acid graft polyethylene by mixing a di-cumyl peroxide 0.1-20 wt% with respect to a total weight of 85 wt% polyethylene resin and 15 wt% acrylic acid, followed by vacuum compression at 190 ° C. to produce pellets.
KR1020030037351A 2003-06-11 2003-06-11 Resin composition using acrylic acid graft polyethylene and manufacturing method thereof KR20040106122A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103057421A (en) * 2011-10-24 2013-04-24 现代摩比斯株式会社 Vehicle instrument board
CN103865142A (en) * 2012-12-11 2014-06-18 神华集团有限责任公司 Crosslinkable polyethylene co-mixed composition
KR20190049463A (en) 2017-10-30 2019-05-09 한국화학연구원 Self-emulsifying polyethylene wax, preparation method thereof and emulsion containing same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103057421A (en) * 2011-10-24 2013-04-24 现代摩比斯株式会社 Vehicle instrument board
CN103057421B (en) * 2011-10-24 2017-04-26 现代摩比斯株式会社 Vehicle instrument board
CN103865142A (en) * 2012-12-11 2014-06-18 神华集团有限责任公司 Crosslinkable polyethylene co-mixed composition
KR20190049463A (en) 2017-10-30 2019-05-09 한국화학연구원 Self-emulsifying polyethylene wax, preparation method thereof and emulsion containing same

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