• Title/Summary/Keyword: compatibilizers

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Effect of Compatibilizers on Mechanical Properties of Wood-Plastic Composites Using Styrene Polymers as Matrix Polymers (스티렌계 수지(樹脂)를 매트릭스로 사용한 목재 - 플라스틱 복합체(複合體)의 물성(物性)에 미치는 상용화제(相溶化劑)의 효과(效果))

  • Han, Gyu-Seong
    • Journal of the Korean Wood Science and Technology
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    • v.21 no.2
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    • pp.31-37
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    • 1993
  • Composites of styrene polymers with woody fibers were prepared, and the effect of compatibilizers on their mechanical properties was evaluated. To improve the compatibility of wood fibers and the matrix polymers, styrene-maleic anhydride copolymer(SMA) and maleic anhydride-modified polymers were used as compatibilizers. As results, maleic anhydride-modified polystyrene and SMA were proved to improve the tensile strength of the molded composites, and also were evaluated as good compatibilizers for the wood fiber polystyrene composite. Cellulosic fiber (dissolving pulp) provided better reinforcement than lignocellulosic fiber(thermomechanical pulp). On the contrary in the case of the composite of wood fiber and acrylonitrile-butadiene styrene copolymer(ABS), SMA and maleic anhydride-modified acrylonitrile-butadiene-styrene copolymer(MABS) did not act as compatibilizers. However, MABS was evaluated as a good polymer matrix to make wood fiber reinforced composite. The tensile properties of the composites of wood fiber and MABS were superior than those of wood fiber-ABS composites.

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The Thermal and Mechanical Properties of Recycled PP/EVOH/PP Scrap with Compatibilizers (재활용 PP/EVOH/PP 스크랩의 상용화제별 열적/기계적 특성연구)

  • Chun, Yong-Jin;Ahn, Tae-Kwang
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.9 no.1
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    • pp.176-181
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    • 2008
  • This paper was studied the possibility on the recycling of the scrap used as the food packaging materials, PP/EVOH/PP multilayer. Recycling study was investigated into thermal and mechanical properties of samples which were mixed PP/EVOH waste plastics scrap with two kinds of compatibilizers. Melt behaviors as thermal property and tensile strength, % strain at break point, and tensile modulus as mechanical properties were investigated into kinds of and the weight ratio of compatibilizers. Mixed PP/EVOH waste plastics shows compatibity when Minanto-s and GMS as compatibilizers are mixed 0.5wt.% over.

The Study of the Recycling Methode of Alloyed Recycling Plastics by Using the Compatibilizers (상용화제를 이용한 혼합 폐플라스틱의 재활용 방안)

  • Lee, Soo-Keun;Kim, Jai-Neung
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.10 no.1
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    • pp.37-46
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    • 2004
  • The aim of this study was to develop the recycling methode of alloyed recycling plastics. The compatibilizers have been used to improve the physical properties of recycling plastics. Eethylene propylene rubber(EPR), ethylene propylene diene monomer(EPDM), styrene ethylene butylene styrene block copolymer(SEBS), maleic anhydride modified styrene ethylene butylene styrene block copolymer(SEBS-MA) and styrene butadiene styrene block copolymer(SBS) were singled out as compatibilizers. In this study, the physical properties such as impact and tensile strength have improved above 20% by using the compatibilizers.

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Effect of two compatibilizers haying comonomer in polypropylene/clay nanocomposites (Comonomer 도입한 상용화제가 Polypropylene/clay 나노복합재료에 미치는 영향)

  • Nam, Byeong-Uk
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.8 no.2
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    • pp.367-371
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    • 2007
  • Nanocomposites prepared by PP(Polypropylene) based compatibilizers modified with GMA(Glycidyl methacrylate) and HEMA(Hydroxyethyl methacrylate) were used to investigate the clay dispersion and mechanical properties of them. XRD patterns showed the improvement of dispersion through clay intercalation according to the compatibilizers and comonomer. GMA modified polypropylene gave the best mechanical properties of the nanocomposite with respect to the balance of Flexural modulus (FM) and Notched izod impact strength(IS). Compatibilizers with comonoer commonly have higher grafting yield and lower melt flow rate than those of comonomer free. And they enhanced the clay dispersion and mechanical properties of nanocomposites. Optimum ratio of monomer to comonomer for nanocomposites having better mechanical properties is about 1 to 1 ratio.

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Morphology and Properties of PP/PU Blends Prepared by Compositional Quenching (Compositional Quenching으로 제조한 PP/PU 블렌드의 모폴로지 및 물성)

  • Lim, Gyeong-Taek;Ju, Min-Hyuk;Kim, Do-Heyoung;Song, Ki-Chan;Kim, Su-Kyung
    • Elastomers and Composites
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    • v.36 no.3
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    • pp.177-187
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    • 2001
  • Polypropylene(PP)/polyurethane(PU) blends with reactive compatibilizers were prepared by the compositional quenching process. Maleic anhydride grafted PP(MPP) and hydroxyethyl maleimide grafted PP(HPP) were introduced as reactive compatibilizers. The formation of HPP and the reactions of compatibilizers with the PU components were confirmed by FT-IR spectroscopy. The morphology, tensile properties, thermal stability, and surface property were studied. The blends prepared by the compositional quenching showed better dispersed domain morphology than the melt blends. The PU domain size became more uniform and reduced in size with increasing the amount of compatibilizers. The blends with HPP showed sightly smaller domain sire than the blends with MPP. The blends with compatibilizers all showed improved tensile properties, surface property. and thermal stability due to the interfacial adhesion effect. The blends with MPP showed higher surface energy than the blends with HPP, but the latter showed better thermal stability compared to the former.

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The Characterization of Recycle PE/PET/TPE Blend with Compatibilizers (폐 PE/PET/TPE Blends 제조와 상용화에 따른 특성 분석)

  • Kim, Dong-Hyun;Hwang, In-Sung;Kim, Jeong-Hun
    • Journal of Digital Convergence
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    • v.10 no.10
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    • pp.423-430
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    • 2012
  • This study focused on the characterization of recycle PE/PET/TPE blend with compatibilizers. The heat resistance and impact strength of a weak point on PET/HDPE blend has been improved. TPE added polyester-based recycle heat-resistant properties to $150^{\circ}C$ showed more than $50^{\circ}C$ higher than HDPE added. Elastomer applied is a significant increase in the impact strength, and then it is possible to apply for safety materials in industries requiring heat-resistance and elasticity. Also using PET blend compatibilizer improves the strength of the polyolefin resin. The mechanical properties of recycle HDPE and PET blend has been greatly improved, and the reduction in the size of the dispersed phase by the addition of compatibilizers on morphology characteristics were observed uniformity becomes.

Effects of High-Intensity Ultrasound & Supercritical Nitrogen on PP-MA Reactive Extrusion

  • Sohn, Chang-Hee;Shim, Dong-Chul;Lee, Jae-Wook
    • Proceedings of the Polymer Society of Korea Conference
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    • 2006.10a
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    • pp.369-369
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    • 2006
  • Compatibilizers contribute to many processes in polymer industry, such as manufacturing polymer blends and composites. They are usually designed to be block or graft form which is combined in polar and non-polar parts in the first synthesis process level, for example, the general form of maleic anhydride (MA) as a compatiblizer is a grafted counterpart. However, the process of making the compatibilizer is related to the first synthesis level and it has some problems, such as high cost, poor processability, limitation on use and properties, and so on. So, in order to improve its poor processability and overcome the limitation on use, we developed compatibilizers which have various chemical forms by high intensity ultrasound and super critical fluid nitrogen in polymer melt reactive extrusion.

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A Study on Mechanical Properties of PBT/ABS Blends with Compatibilizers (PBT/ABS 블렌드의 상용화제에 따른 기계적 물성 연구)

  • Yun, Ki-Ho;Lee, Joong-Hee;Choi, Jae-Ho
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.26 no.10
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    • pp.2165-2171
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    • 2002
  • Poly-butylene-terephalate(PBT) can be impact-modified by blending with ABS material. The effects of compatibilizers and ABS content on the mechanical properties of PBT/ABS blend were examined in this study. EPDM-g-GMA and polycarbonate(PC) were used as a compatibilizer. As the GMA content in EPDM-g-GMA increased, the tensile strength of PBT/ABS blend increased and the impact strength decreased. With increasing the EPDM-g-GMA content in PBT/ABS blend, the tensile strength and impact strength decreased. With PC compatibilizer, the particle size of ABS in PBT/ABS blend became smaller than that of the blend without compatibilizer and the particles were more evenly dispersed in matrix. The maximum impact strength of the PBT/ABS blend was observed in the range of 20~30% ABS content.

Effect of Compatibilizers on the Morphological, Mechanical and Rheological Properties of PP/PCL and TPO/PCL Blends (상용화제의 첨가에 따른 PP/PCL 블렌드와 TPO/PCL 블렌드의 기계적 물성 모폴로지 및 유변학적 물성)

  • Lee, Yun-Kyun;Kim, Min-Soo;Kim, Woo-Nyon
    • Korean Chemical Engineering Research
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    • v.49 no.3
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    • pp.342-347
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    • 2011
  • The effects of compatibilizers on the mechanical and rheological properties of PP/PCL and TPO/PCL blends have been studied. The thermoplastic polyolefin (TPO) consists of PP (80 wt%), EPDM (15 wt%) and Talc (5 wt%). Maleic anhydride grafted polypropylene (PP-g-MAH) and maleic anhydride grafted styrene-(ethylene-co-butene)-styrene copolymer (SEBS-g-MAH) were used as compatibilizers. In mechanical properties of PP/PCL and TPO/PCL blends, tensile strength was increased when PP-g-MAH was used as a compatibilizer, and impact strength was increased when SEBS-g-MAH was used as a compatibilizer. From the results of SEM morphology of PP/PCL blend, PCL droplet size was decreased by the addition of PP-g-MAH. From the results of rheological property, complex viscosity of the PP/PCL and TPO/PCL blends did not change appreciably when the compatibilizers were added. From the results of mechanical, morphological and rheological properties of the blends, PP-g-MAH acted as a compatibilizer to increase the tensile strength of the PP/PCL and TPO/PCL blends. While SEBS-g-MAH acted as a impact modifier to increase the impact strength of the PP/PCL and TPO/PCL blends.