KR100208579B1 - Hybrid sheet molding composition - Google Patents

Hybrid sheet molding composition Download PDF

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KR100208579B1
KR100208579B1 KR1019950047770A KR19950047770A KR100208579B1 KR 100208579 B1 KR100208579 B1 KR 100208579B1 KR 1019950047770 A KR1019950047770 A KR 1019950047770A KR 19950047770 A KR19950047770 A KR 19950047770A KR 100208579 B1 KR100208579 B1 KR 100208579B1
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weight
molding composition
sheet molding
hybrid sheet
mixture
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KR1019950047770A
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Korean (ko)
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KR970042824A (en
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박봉현
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정몽규
현대자동차주식회사
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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
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/06—Unsaturated polyesters
    • 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
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • 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
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • 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
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • 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
    • C08K7/16—Solid spheres
    • C08K7/18—Solid spheres inorganic
    • C08K7/20—Glass
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate

Abstract

본 발명은 하이브리드 시이트 성형 조성물에 관한 것으로서, 더욱 상세하게는 불포화 폴리에스테르계 수지, 산화티타늄, 탄산칼슘 또는 실리카 및 기타 첨가제로 이루어지되 표면과 내부의 함량을 달리함으로써 부위별 물성차이가 적고 비중이 낮으며 강성이 우수한 하이브리드 시이트 성형 조성물에 관한 것이다.The present invention relates to a hybrid sheet molding composition, and more particularly, it is made of unsaturated polyester resin, titanium oxide, calcium carbonate or silica and other additives, but the difference in physical properties of each part is different and the specific gravity is reduced by varying the content of the surface and the interior. A low, high rigidity hybrid sheet molding composition.

Description

하이브리드 시이트 성형 조성물Hybrid Sheet Molding Composition

본 발명은 하이브리드 시이트 성형 조성물에 관한 것으로서, 더욱 상세하게는 불포화 폴리에스테르계 수지,산화티타늄, 탄산칼슘 또는 실리카 및 기타 첨가제로 이루어지되 표면과 내부의 함량을 달리함으로써 부위별 물성차이가 적고 비중이 낮으며 강성이 우수한 하이브리드 시이트 성형 조성물에 관한 것이다.The present invention relates to a hybrid sheet molding composition, and more particularly, it is made of unsaturated polyester resin, titanium oxide, calcium carbonate or silica and other additives, but by varying the content of the surface and the inside, the difference in physical properties of each part is small and the specific gravity is low. A low, high rigidity hybrid sheet molding composition.

종래의 하이브리드 시이트 성형 조성물은 불포화 폴리에스테르계 수지 40 ∼60중량%, 유리 섬유 20 ∼40중량%, 탄산칼슘 10 ∼15중량% 및 기타 첨가제로 이루어진 것으로서, 이때 유리섬유는 크기 12㎛ 전후인 일반섬유나 50~250㎛인 롱(long) 일반 섬유를 사용하며, 표면이나 외부 모두 동일 조성이다.Conventional hybrid sheet molding composition is composed of 40 to 60% by weight of unsaturated polyester resin, 20 to 40% by weight of glass fiber, 10 to 15% by weight of calcium carbonate and other additives, wherein the glass fiber is about 12㎛ size general It uses fiber or long regular fiber of 50 ~ 250㎛, and the same composition on both surface and exterior.

그러나, 상기 조성으로 이루어진 사이트 성형 조성물은 부위별 물성치 차이가 크고, 비중이 높아 플라스틱으로서의 경량화 효과가 적고, 강성이 다소 부족하다. 또한, 성형품 외간에 핀 홀(Fin Hole)등이 생서되므로 별도의 트리밍 및 표면 개성 공정이 필요하다.However, the site-forming composition composed of the above composition has a large difference in physical properties for each site, a high specific gravity, low weight-reducing effect as plastic, and some rigidity. In addition, since pin holes are formed between the molded parts, separate trimming and surface modification processes are required.

따라서, 본 발명은 종래의 하이브리드 시이트 성형 조성물의 문제점을 해결하기 위하여 유리섬유 외에도 산화티타늄, 실리카 등을 첨가하고 표면과 내부의 조성을 달리함으로써 고강도 및 저비중의 하이브리드 시이트 성형 조성물을 제공하는 데 그 목적이 있다.Therefore, the present invention is to provide a high strength and low specific gravity hybrid sheet molding composition by adding titanium oxide, silica and the like in addition to the glass fiber and varying the surface and internal composition in order to solve the problems of the conventional hybrid sheet molding composition. There is this.

이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.

본 발명을 하이브리드 시이트 성형 조성물에 있어서, 표면을 불포화 폴리에스테르계 수지 45 ∼55중량%, 유리 섬유 15 ∼35중량%, 산화티탄 및 미세 그라파이트의 혼합물 4 ∼8중량%, 실리카 및 탄산칼슘의 혼합물 5 ∼15중량% 및 첨가제로 이루어지고, 내부는 불포화 폴리에스테르계 수지 30 ∼40중량%, 유리섬유 55 ∼70중량%, 실리카 및 탄산칼슘의 혼합물 5 ∼15중량% 및 첨가제로 이루어진 것을 그 특징으로 한다.In the hybrid sheet molding composition of the present invention, the surface is 45 to 55% by weight of unsaturated polyester resin, 15 to 35% by weight of glass fiber, 4 to 8% by weight of a mixture of titanium oxide and fine graphite, a mixture of silica and calcium carbonate. It is composed of 5 to 15% by weight and additives, the inside is composed of 30 to 40% by weight of unsaturated polyester resin, 55 to 70% by weight of glass fiber, 5 to 15% by weight of a mixture of silica and calcium carbonate and additives It is done.

이와같은 본 발명을 더욱 상세하게 설명하면 다음과 같다.The present invention will be described in more detail as follows.

본 발명은 산화티탄등을 첨가함으로써 고강도이면서 저비중인 하이브리드 사이트 성형 조성물에 관한 것으로서, 본 발명에서의 하이브리드 사이트 성형 조성물은 표면과 내부의 조성을 달리함으로써 굴곡강도등을 향상시키고 비중을 낮춘다.The present invention relates to a high strength and low specific ratio hybrid site molding composition by adding titanium oxide, etc. The hybrid site molding composition of the present invention improves flexural strength and lowers specific gravity by changing the composition of the surface and the interior.

먼저, 표면의 조성은 불포화 폴리에스테르계 수지 45 ∼55중량%, 유리 섬유 15 ∼35중량%, 산화티탄 및 미세 그라파이트의 혼합물 4 ∼8중량%, 실리카 및 탄산칼슘의 혼합물 5 ∼15중량% 및 첨가제로 이루어진다. 여기서, 유리섬유의 함량이 35 중량%를 초과하면 표면외관이 불량하고 15 중량% 미만일 경우는 강도가 부족해진다. 그리고, 산화티탄과 그라파이트의 혼합물에 있어서 그라파이트의 함량이 70 중량%를 초과하면 기재 수지와 접착이 불량하게 됨으로 그라파이트는 70 중량% 미만으로 혼합하여 사용하는 것이 바람직하다. 이와같은 산화티탄 및 미세 그라파이트의 항량이 8 중량%를 초과하면 표면에 붙어 외관이 불량해지고, 4 중량% 미만이면 강성이 부족해 진다. 그리고, 실리카 및 탄산칼슘이 혼합물의 함량이 15 중량%를 초과하면 끝단부 표면이 쉽게 떨어져 나갈 가능성이 있으며, 5 중량% 미만으로 첨가하면 도장성이 불량해지는 문제가 있다.First, the composition of the surface is 45 to 55% by weight of unsaturated polyester resin, 15 to 35% by weight of glass fiber, 4 to 8% by weight of a mixture of titanium oxide and fine graphite, 5 to 15% by weight of a mixture of silica and calcium carbonate, and It consists of additives. Here, when the content of the glass fiber exceeds 35% by weight, the surface appearance is poor, and when less than 15% by weight, the strength is insufficient. In the mixture of titanium oxide and graphite, when the content of graphite exceeds 70% by weight, adhesion to the base resin is poor, and therefore, graphite is preferably used in a mixture of less than 70% by weight. When the amount of such titanium oxide and fine graphite exceeds 8% by weight, the surface adheres to the surface, and the appearance becomes poor. In addition, when the content of the mixture of silica and calcium carbonate exceeds 15% by weight, there is a possibility that the end surface is easily peeled off, and when added to less than 5% by weight, paintability is poor.

그리고, 내부의 조성은 불포화 폴리에스테르계 수지 30 ∼40중량%, 유리 섬유 55 ∼70중량%, 실리카 및 탄산칼슘의 혼합물 5 ∼15중량% 및 첨가제로 이루어진다.The internal composition is composed of 30 to 40% by weight of unsaturated polyester resin, 55 to 70% by weight of glass fiber, 5 to 15% by weight of a mixture of silica and calcium carbonate, and an additive.

각각의 표면과 내부에 첨가되는 유리섬유의 크기는 12㎛내외인 것을 40 중량%, 50㎛ 내외인 것을 40 중량%, 그리고 100 ∼ 150㎛ 인 것을 20 중량%되게 첨가한다.The size of the glass fibers added to each surface and inside is 40 wt% of about 12 μm, 40 wt% of about 50 μm, and 20 wt% of 100 to 150 μm.

이와같이 본 발명은 산화티탄, 그라파이트 등을 첨가하고, 표면과 내부의 조성을 달리함으로써 비중이 작고, 강도가 향상되어 시이트재 성형 조성물로서 유용하게 사용될 수 있다.As described above, the present invention adds titanium oxide, graphite, and the like, and changes the composition of the surface and the inside, so that the specific gravity is small, the strength is improved, and thus it can be usefully used as a sheet material molding composition.

이하, 본발명은 실시예에 의거하여 상세히 설명하면 다음과 같은 바, 본 발명이 실시에에 의해 한정되어 있는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to the Examples as follows, the present invention is not limited by the embodiments.

[실시예 1∼3 및 비교예 1∼4][Examples 1-3 and Comparative Examples 1-4]

다음 표에 나타낸 바와 같은 조성 및 함량으로 시이트 성형 조성물을 제조하였으며, 이에 대하여 비중, 굴곡강도, 아이조드 충격강도 및 굴곡탄성율을 측정하여 그 결과를 다음표에 나타내었다.A sheet molding composition was prepared with the composition and content as shown in the following table, and specific gravity, flexural strength, Izod impact strength, and flexural modulus were measured, and the results are shown in the following table.

여기서, 비중은 ASTM D792 방법으로, 굴곡강도 ASTM D790 방법으로, 아이조드 충격강도는 ASTM D256 방법으로 축정하였고, 굴곡탄성율은 ASTM D790 방법으로 측정하였다.Here, specific gravity was measured by ASTM D792 method, flexural strength ASTM D790 method, Izod impact strength by ASTM D256 method, flexural modulus was measured by ASTM D790 method.

상기 표의 결과로부터 본 발명의 시이트 성형 조성물은 비중이 종래의 것에 비하여 작고 강도가 우수하여 해당 분야에 유용하게 사용될 수 있다.From the results of the above table, the sheet molding composition of the present invention has a specific gravity smaller than that of the conventional one and is excellent in strength, and thus may be usefully used in the field.

Claims (1)

표면을 불포화 폴리에스테르계 수지 45 ∼55중량%, 유리 섬유 15 ∼35중량%, 산화티탄 및 미세 그라파이트의 혼합물 4 ∼8중량%, 실리카 및 탄산칼슘의 혼합물 5 ∼15중량% 및 첨가제로 이루어지고, 내부는 불포화 폴리에스테르계 수지 30 ∼40중량%, 유리섬유 55 ∼70중량%, 실리카 및 탄산칼슘의 혼합물 5 ∼15중량% 및 첨가제로 이루어진 것을 그 특징으로 하는 하이브리드 시이트 성형 조성물.The surface is composed of 45 to 55% by weight unsaturated polyester resin, 15 to 35% by weight glass fiber, 4 to 8% by weight mixture of titanium oxide and fine graphite, 5 to 15% by weight mixture of silica and calcium carbonate and additives, The inside is a hybrid sheet molding composition comprising 30 to 40% by weight of unsaturated polyester resin, 55 to 70% by weight of glass fiber, 5 to 15% by weight of a mixture of silica and calcium carbonate, and an additive.
KR1019950047770A 1995-12-08 1995-12-08 Hybrid sheet molding composition KR100208579B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020031720A (en) * 2000-10-23 2002-05-03 이계안 Low density thermosetting resin composition for outer panel of automobile
KR101349160B1 (en) * 2012-02-07 2014-01-10 현대자동차주식회사 Functionality nanocomposites containing glass fiber coated with carbonnanotube and graphite and a fabrication process thereof
KR20220097845A (en) 2021-01-01 2022-07-08 이민규 A Filterable Mask Even When Eating Food

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100483112B1 (en) * 2002-05-03 2005-04-14 애경화학 주식회사 The Preparation of Flame Resisting Unsaturated Polyester Including Heat Expandable Graphite

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020031720A (en) * 2000-10-23 2002-05-03 이계안 Low density thermosetting resin composition for outer panel of automobile
KR101349160B1 (en) * 2012-02-07 2014-01-10 현대자동차주식회사 Functionality nanocomposites containing glass fiber coated with carbonnanotube and graphite and a fabrication process thereof
KR20220097845A (en) 2021-01-01 2022-07-08 이민규 A Filterable Mask Even When Eating Food

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