KR950025069A - Porous sheet composition - Google Patents

Porous sheet composition Download PDF

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Publication number
KR950025069A
KR950025069A KR1019940003832A KR19940003832A KR950025069A KR 950025069 A KR950025069 A KR 950025069A KR 1019940003832 A KR1019940003832 A KR 1019940003832A KR 19940003832 A KR19940003832 A KR 19940003832A KR 950025069 A KR950025069 A KR 950025069A
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South Korea
Prior art keywords
molecular weight
plasticizer
average molecular
weight
polyethylene
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KR1019940003832A
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Korean (ko)
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KR970011463B1 (en
Inventor
최병렬
박양준
조형식
Original Assignee
정보영
호남석유화학 주식회사
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Priority to KR1019940003832A priority Critical patent/KR970011463B1/en
Publication of KR950025069A publication Critical patent/KR950025069A/en
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Publication of KR970011463B1 publication Critical patent/KR970011463B1/en

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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
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene

Abstract

본 발명의 다공성 시이트는 폴리머조성물, 고형필러 및 가소제를 함유하며 상기 폴리머조성물이 중량평균 분자량 1,500,000-5,000,000인 초고분자량부 1에 대해 중량평균 분자량 200,000-300,000인 저분자량부의 중량비가 0.4∼3의 비율로 이루어져 된 것으로 그의 평균 분자량이 1,000,000-3,000,000임을 특징으로 하며, 또한 이러한 폴리머조성물 1에 대하여 중량비로 가소제 3∼4, 고형필러 2∼3을 함유함을 특징으로 한다. 또한 자외선에 대한 안정성을 부여하기 위하여 카본블랙과 산화방지제를 더 함유하고 있음을 특징으로 한다.The porous sheet of the present invention contains a polymer composition, a solid filler and a plasticizer, and the weight ratio of the low molecular weight part having a weight average molecular weight of 200,000-300,000 is 0.4 to 3 with respect to the ultra high molecular weight part 1 of the polymer composition having a weight average molecular weight of 1,500,000-5,000,000. It is characterized in that the average molecular weight of 1,000,000-3,000,000, and characterized in that it contains a plasticizer 3 to 4, solid fillers 2 to 3 by weight relative to the polymer composition 1. In addition, it is characterized in that it further contains carbon black and antioxidant to impart stability to ultraviolet rays.

상기와 같은 특성을 갖는 수지 조성물로부터 제작된 본 발명의 다공성 시이트는 균일하고 일정한 크기의 미세공이 형성되어 있어 전해액중 이온의 이동이 가능하며, 전기저항등의 최종물성이 분리막이나 단열재 용도에 적합한 등 우수한 기계적 물성을 나타낸다.The porous sheet of the present invention manufactured from the resin composition having the above characteristics has uniform and uniform micropores formed therein to allow the movement of ions in the electrolyte, and the final physical properties such as electrical resistance are suitable for use in separators and heat insulating materials. It exhibits excellent mechanical properties.

Description

다공성 시이트 조성물Porous sheet composition

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 시이트 표면에 형성된 다공성을 나타낸 것이다.1 shows the porosity formed on the sheet surface.

제2도는 시이트 단면에 형성된 다공성을 나타낸 것이다.2 shows the porosity formed in the sheet cross section.

제3도는 본 발명에서 사용된 초음파추출기의 개략도를 나타낸 것이다.Figure 3 shows a schematic diagram of the ultrasonic extractor used in the present invention.

제4(A)도 및 4(B)도는 가소제 추출시의 추출시간과 용제의 종류, 추출온도와의 관계를 나타낸 그래프이다.4 (A) and 4 (B) are graphs showing the relationship between the extraction time at the time of plasticizer extraction, the type of solvent, and the extraction temperature.

Claims (6)

폴리에틸렌(A), 가소제(B) 및 고형 필러(C)를 함유하는 다공성 시이트용 조성물에 있어서, 상기 폴리에틸렌(A)은 중량평균 분자량 1,500,000-5,000,000인 초고분자량부와 중량평균 분자량 200,000-300,000의 저밀도 저분자량부로 이루어져 있으며 평균 분자량이 1,000,000-3,000,000이며, 상기 초고분자량부와 저밀도 저분자량부의 중량비는 1:0.2-3이고 ; 상기 가소제(B)는 용해도 파라미터가 6-10인 석유오일 화합물이며, 상기 (C)는 입자 크기가 0.5-20㎛인 실리카이며 ; 그리고 상기 성분(A), (B) 및 (C)의 중량비인 (A) : (B) : (C)는 1:3-4:2-3임을 특징으로 하는 다공성 시이트용 조성물.In the composition for porous sheets containing polyethylene (A), plasticizer (B) and solid filler (C), the polyethylene (A) has an ultra high molecular weight part having a weight average molecular weight of 1,500,000-5,000,000 and a low density of 200,000-300,000 It consists of a low molecular weight part and the average molecular weight is 1,000,000-3,000,000, the weight ratio of the ultra high molecular weight part and the low density low molecular weight part is 1: 0.2-3; The plasticizer (B) is a petroleum oil compound having a solubility parameter of 6-10, and (C) is silica having a particle size of 0.5-20 µm; And (A): (B): (C), which is a weight ratio of the components (A), (B) and (C), is 1: 3-4: 2-3. 제1항에 있어서, 상기 폴리에틸렌(A)는 초고분자랑부와 저밀도 저분자량부를 중합하여 얻거나 또는 단순 블렌딩하여 얻은 것임을 특징으로 하는 다공성 시이트용 조성물.The porous sheet composition according to claim 1, wherein the polyethylene (A) is obtained by polymerizing the ultrahigh molecular portion and the low density low molecular weight portion or by simple blending. 폴리에틸렌(A), 가소제(B) 및 고형 필러(C)를 함유하는 조성물로 만들어진 다공성 시이트에 있어서, 상기 폴리에틸렌(A)은 중량평균 분자량 1,500,000-5,000,000인 초고분자량부와 중량평균 분자량 200,000-300,000의 저밀도 저분자량부로 이루어져 있으며 평균 분자량이 1,000,000-3,000,000이며, 상기 초고분자량부와 저밀도 저분자량부의 중량비는 1:0.2-3이고 ; 상기 가소제(B)는 용해도 파라미터가 6-10인 석유오일 화합물이며 ; 상기 (C)는 입자 크기가 0.5-20㎛인 실리카이며 ; 그리고 상기 성분 (A), (B) 및 (C)의 중량비인 (A):(B):(C)는 1:3-4:2-3임을 특징으로 하는 다공성 시이트.In a porous sheet made of a composition containing polyethylene (A), plasticizer (B) and solid filler (C), the polyethylene (A) has an ultra high molecular weight part having a weight average molecular weight of 1,500,000-5,000,000 and a weight average molecular weight of 200,000-300,000. It consists of a low density low molecular weight part and the average molecular weight is 1,000,000-3,000,000, the weight ratio of the ultra high molecular weight part and the low density low molecular weight part is 1: 0.2-3; The plasticizer (B) is a petroleum oil compound having a solubility parameter of 6-10; (C) is silica having a particle size of 0.5-20 µm; And (A) :( B) :( C), which is a weight ratio of the components (A), (B) and (C), is 1: 3-4: 2-3. 제3항에 있어서, 두께가 100㎛∼5cm이며, 단열재, 분리막, 축전지 격리막, 신선도 유지용 또는 습도조절용으로 사용됨을 특징으로 하는 다공성 시이트.The porous sheet according to claim 3, wherein the sheet is 100 µm to 5 cm in thickness and is used for insulation, separator, battery separator, freshness maintenance or humidity control. 중량평균 분자량 1,500,000-5,000,000인 초고분자량 폴리에틸렌부와 중량평균 분자량 200,000-300,000의 저밀도 저분자량 폴리에틸렌부로 이루어져 있으며 평균 분자량이 1,000,000-3,000,000이고, 상기 초고분자량부와 저밀도 저분자량부의 중량비는 1:0.2-3인 폴리에틸렌(A), 가소제(B) 및 고형 필러(C)를 함유하며 상기 각 성분 (A), (B) 및 (C)의 중량비인 (A):(B):(C)는 1:3-4:2-3인 혼합물을 혼합하고 ; 혼합물을 성형 및 연신하되 연신은 상기 성분(A)의 용점보다 10℃ 높은 온도에서 연신비 10-20으로 행하며; 이어서 용제를 이용하여 용제의 비등점이하까지 가열하므로써 초음파 세척분위기하에 가소제를 추출해냄을 특징으로 하는 다공성 시이트용 조성물의 제조방법.Ultra high molecular weight polyethylene moiety having a weight average molecular weight of 1,500,000-5,000,000 and low density low molecular weight polyethylene moiety having a weight average molecular weight of 200,000-300,000. The average molecular weight is 1,000,000-3,000,000, and the weight ratio of the ultra high molecular weight part and the low density low molecular weight part is 1: 0.2-3. Phosphorus polyethylene (A), plasticizer (B) and solid filler (C), wherein the weight ratio of each of the components (A), (B) and (C) is (A) :( B) :( C) is 1: Mix the mixture of 3-4: 2-3; Shaping and stretching the mixture, but stretching is performed at a draw ratio of 10-20 at a temperature 10 ° C. above the melting point of component (A); Subsequently, a plasticizer is extracted under an ultrasonic cleaning atmosphere by heating to a boiling point below the solvent by using a solvent. 제5항에 있어서, 추출단계는 추출후 남는 가소제의 양이 성분(A)의 10중량%이하로 되도록 실시함을 특징으로 하는 제조방법.A process according to claim 5, wherein the extraction step is carried out such that the amount of plasticizer remaining after extraction is less than 10% by weight of component (A). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940003832A 1994-02-28 1994-02-28 Sheet component KR970011463B1 (en)

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KR970011463B1 KR970011463B1 (en) 1997-07-11

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