• Transactions on Electrical and Electronic Materials
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• 제11권4호
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• pp.174-177
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• 2010

We have developed an environment-friendly etching process, an alternative to the dichromic acid etching process, as a pretreatment of acrylonitrile-butadiene-styrene (ABS) plastic for electroless plating. In order to plate ABS plastic in an electroless way, there should be fine holes on the surface of the ABS plastic to enhance mechanically the adhesion strength between the plastic surface and the plate. To make these holes, the surface was coated uniformly with dispersed chemical foaming agents in a mixture of environmentally friendly dispersant and solvent by the methods of dipping or direct application. The solvent seeps into just below the surface and distributes the chemical foaming agents uniformly beneath the surface. After drying off the surface, the surface was heated at a temperature well below the glass transition temperature of ABS plastic. By pyrolysis, the chemical foaming agents made fine holes on the surface. In order to discover optimum conditions for the formation of fine holes, the mixing ratio of the solvent, the dispersant and the chemical foaming agent were controlled. After the etching process, the surface was plated with nickel. We tested the adhesion strength between the ABS plastic and nickel plate by the cross-cutting method. The surface morphologies of the ABS plastic before and after the etching process were observed by means of a scanning electron microscope.

• 한국산업융합학회 논문집
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• 제23권3호
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• pp.375-380
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• 2020

In this study, we tried to evaluate the mechanical properties of Polycarbonate(PC) and acrylonitrile-butadiene-styrene(ABS) plastic materials, which are frequently used as parts of home appliances and machinery, when repeated impacts were applied. A repeating impact tester for this research was designed and manufactured to apply repetitive impacts. Two types of plastic were repeatedly impacted under a constant load, and a tensile test was performed on the plastic material that was impacted. The tensile strength of PC plastic materials that received impact more than 2000 times was reduced by about 45 % and elongation was reduced by about 10 % when compared to impact free specimens. On the other hand, in ABS plastic, a reduction of tensile strength of about 20 % was observed at about 2,000 impacted specimen, but at about 20,000 repetitive impacted specimen, a tensile strength decrease of about 65 % was observed. And the elongation was reduced by 10 % due to the cyclic harding behavior of the material.

• 한국산학기술학회논문지
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• 제4권3호
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• pp.164-167
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• 2003

본 연구에서는 무선부품의 일종인 cavity filter금형을 제작하여 도금용 ABS 수지와 PC/ABS alloy 수지를 사용하여 일반사출성형과 금형온도가 높은 MmSH방식, 두 타입으로 성형품을 제작하였다. 성형품의 수축률 변화는 MmSH 방식일 때 ABS 성형품의 단위캐비티 격막부분에서 수축률이 감소되었다. 중량변화는 ABS와 PC/ABS 성형품 모두 MmSH 방식일 때 증가하였고, 성형품 표면 거칠기는 MmSH 방식일 때 모두 거칠기가 감소되었다.

• 자원리싸이클링
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• 제22권6호
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• pp.33-40
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• 2013

다양한 분야에 사용되고 있는 플라스틱은 최근 환경문제가 대두되면서 재활용 이슈가 부각되고 있다. 본 연구에서는 마찰하전형정전선별을 적용하여 ABS(Acrylonitrile Butadiene Styrene)와 PS(Polystyrene)의 혼합된 폐플라스틱으로부터 ABS를 회수하기 위한 재질분리 연구를 수행하였다. 하전물질의 재질선정을 위한 하전특성연구결과, ABS재질이 대상시료인 ABS와 PS의 혼합 폐플라스틱의 재질분리에 효과적인 하전재질로 확인되었다. 선정된 하전물질을 적용하여 마찰하전형정전선별을 수행한 결과, 공급전압세기 20 kV, 분리대위치 양극방향 2 cm 그리고 상대습도 30%에서 ABS의 품위와 회수율이 각각 99.5%와 92.5%인 결과를 얻어, ABS와 PS의 혼합 플라스틱의 재활용을 위한 재질분리 기술을 확립하였다.

• 자원리싸이클링
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• 제22권3호
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• pp.50-56
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• 2013

폐 디스플레이에서 발생하는 플라스틱을 재활용하여 실용적이고 경제성 있는 재생복합소재의 개발에 기여할 목적으로 ABS/PE(50/50과 20/80), ABS/GF (90/10) 복합 소재의 조성이 연신율에 미치는 효과를 연구하였다. PE 함량을 50%에서 80%로 증가시킨 폐플라스틱 재생복합소재의 인장시험 결과 전반적으로 연신율이 2.4%에서 13%로 증가하는 것이 관찰되었으나 유리섬유 첨가 시 인장강도와 연신율 모두 현저하게 감소하였다. 이러한 사실에 비추어 볼 때 PE의 함량에 따라 인장강도 등 다양한 기계적 특성의 조절이 가능함을 알 수 있었고 무엇보다도 플라스틱 사출성형에 투입되는 재생복합소재의 특성 중 아주 중요한 연신율을 향상시키는데 PE의 효과가 현저함을 알 수 있었다. 이는 ABS 자체의 우세한 비정질성이 결정성을 띈 PE의 첨가로 인해서 광범위하게 결정화된 결과 폐플라스틱 입자들 사이의 전단 응력이 감소하기 때문인 것으로 간주된다.

• 한국레이저가공학회:학술대회논문집
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• 한국레이저가공학회 2004년도 추계학술대회논문집
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• pp.22-28
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• 2004

Pit and rim formation on the Acrylonitrile Butadiene Styrene(ABS) plastic surface was evaluated after it was irradiated by $CO_2$ and Nd:YAG laser beams. Our results show that thermal effect floor was well observed at the outer wall of pit with $CO_2$ laser irradiated while it was not the case with Nd:YAG laser irradiated. Also the volume and depth of pit formation increase proportionally with the energy intensities of two laser irradiations, but there are significant differences in the slope, width, and FWHM of the Pit formation with two types of laser irradiations. This result shows that $CO_2$ laser irradiation leads to better cooling contraction effect while Nd:YAG laser irradiation induces better recoil pressure effect during the interaction between ABS plastic and laser beam irradiation. The shape of the laser marking could vary significantly depending on the traveling path of molten plastic during injection molding of ABS plastic. Therefore, the selection of material and molding process can have a great impact on the performance of optical storage media.

• 한국포장학회지
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• 제11권1호
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• pp.47-52
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• 2005

The wasted plastic PC/ABS retainer, polyurethane foam (PUF) and vinyl (PVC) skin. In order to investigate the recycling process, the multi-layered instrument panel Each of materials separated was shredded and crushed to create many small particles respectively. The separation of the foam and skin and retainer of zigzagged air blower. Pilot tests performed at the equipment yielded 98.8% by weight of the available PVC and 99.3% by weight of the available PC/ABS respectively. Secondly, the thermal stabilizer and the compatabilizer have been used to improve the physical propertied of recycled materials.. The properties of recycled PVC materials resulted in about 50% compared to that of virgin materials after treatment by Pb-St thermal stabilizer. In addition, the properties of recycled PC/ABS materials was also obtained about 80% compared to that of virgn materials after treatment by PMMA compatabilizer.

• 한국CDE학회논문집
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• 제7권2호
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• pp.96-101
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• 2002

Rapid Prototyping (RP) technology has been advanced to fabricate initial prototypes from various materials. Stratasys′ Fused Deposition Modeling (FDM) is one of the typical RP processes that provide functional prototypes of ABS plastic. In order to predict the behavior of final ABS parts, it is critical to understand the material properties of the raw FDM process material, and the effect that FDM build parameters have on the FDM part. In this paper, we seek to characterize the properties of ABS parts fabricated by the FDM 1650. Using the Design of Experiment (DOE) approach, the process parameters of FDM, such as raster orientation, air gap, bead width, color, and model temperature were examined. Tensile strengths of crisscross specimens, 〔45°/-45°〕, cross specimens, 〔0°/90°〕, and directionally fabricated tensile specimens (〔0°〕 and 〔90°〕) were measured and compared with the injection molded FDM-ABS P400 material. For the FDM parts made with a -0.003"air gap, the typical tensile strength ranged between 50 percent and 83 percent of the strength of injection molded ABS P400. From the experiments, a couple of build rules for designing FDM parts were obtained.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2020년도 봄 학술논문 발표대회
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• pp.10-11
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• 2020

Currently, the most used forms, such as euro form and aluminum form, has many problems. There are issues with noise of construction site because of existing forms' material and issues with safety because of heavy weight. To solve these problems, there are many researches on using plastic and composite materials on the formwork. However, plastic has lower tensile strength than the steel and aluminum and composite materials are expensive. Therefore, constructors are avoid to use the forms with new materials. The purpose of this study is to develop light-weight plastic form to solve these existing problems by using ABS with optimized design. To verify, the study measured the amount of deflection from developed form through a load test. The test result showed a deflection of 1.15mm when 1.4ton was loaded in the middle of form. The result of the study verified that the usage of ABS and optimized design effectively reduced the weight and noise. Also, it's performance was verified through the load test.

• 한국산학기술학회논문지
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• 제14권11호
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• pp.5352-5356
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• 2013

최근 플라스틱 성형품은 기능적인 측면뿐만 아니라 디자인 및 광택과 같이 시각적으로 즉각 식별이 가능한 부분에 까지 많은 관심과 주의를 기울이고 있다. 이와 관련하여 성형품 광택의 제어를 위하여 성형조건이 광택에 미치는 영향에 대한 연구가 필요하지만 관련 연구는 아직 충분히 이루어지지 않고 있다. 따라서 본 연구는 플라스틱 성형품의 외관에 주로 사용되는 ABS (Acrylonitrile-Butadiene-Styrene) 플라스틱 성형품에 대하여 사출압력, 사출속도, 보압력, 수지온도, 금형온도 등의 사출조건의 변화가 성형품의 외관 광택에 미치는 영향에 대하여 사출실험을 통하여 연구하였다. 연구 결과에서 보압력이 가장 큰 영향을 미침을 알 수 있었다. 특히, 보압력 55 - 75MPa 범위에서는 광택도가 증가하지만 그 이상 증가하면 광택이 감소하는데, 그 원인은 SEM(Scanning Electron Microscope)을 통하여 수지 내부의 고무 입자의 변형에 기인한다고 유추할 수 있었다.