Influence of halloysite nanotubes and intumescent flame retardant on mechanical and thermal properties of 80/20 (wt/wt) PP/ABS blend and their composites in the presence of dual compatibilizer

2017 ◽  
Vol 31 (2) ◽  
pp. 202-222 ◽  
Author(s):  
SMD Mastan Saheb ◽  
Pankaj Tambe ◽  
M Malathi
Keyword(s):  
Flame Retardant ◽  
Acrylonitrile Butadiene Styrene ◽  
Halloysite Nanotubes ◽  
Intumescent Flame Retardant ◽  
Mechanical And Thermal Properties ◽  
Screw Extruder ◽  
Twin Screw ◽  
Droplet Morphology ◽  
Scanning Electron ◽  
Butadiene Styrene

Halloysite nanotubes (HNTs) and intumescent flame retardant (IFR)-filled 80/20 (wt/wt) polypropylene/acrylonitrile–butadiene–styrene (PP/ABS) blend and their composites in the presence of dual compatibilizer have been prepared using twin screw extruder followed by injection molding. There exists the formation of α- and β-form of PP crystals in addition to enhancement in crystallinity of PP phase by an addition of HNTs and IFR in 80/20 (wt/wt) PP/ABS blend and their composites in the presence of dual compatibilizer. In addition, scanning electron microscopy (SEM) reveals the formation of matrix-droplet morphology, and the dispersion of HNTs and IFR in 80/20 (wt/wt) PP/ABS blend and its composites in the presence of dual compatibilizer results in a refinement in matrix-droplet morphology. This has resulted in an enhancement in tensile and impact properties of HNTs- and IFR-filled 80/20 (wt/wt) PP/ABS blend and their composites in the presence of dual compatibilizer. Thermal stability also increases by an addition of HNTs and IFR in 80/20 (wt/wt) PP/ABS blend and their composites in the presence of dual compatibilizer due to formation of intumescent char.

Enhancement of Mechanical Properties of ABS/PC-HNT Nano Composites

2018 ◽  
Vol 24 (8) ◽  
pp. 6000-6003
Author(s):  
Y. Narendra Babu ◽  
M. Venkateswara Rao ◽  
A. Gopala Krishna
Keyword(s):  
Mechanical Properties ◽  
Matrix Material ◽  
Acrylonitrile Butadiene Styrene ◽  
Halloysite Nanotubes ◽  
Mechanical Tests ◽  
Screw Extruder ◽  
Nano Composite ◽  
Melt Compounding ◽  
Twin Screw ◽  
Butadiene Styrene

The objective of this paper is to experimentally study tensile strength, Impact strength, Flexural strength and Wear Characteristics of the Nano tubular material Halloysite Nanotubes (HNT) into ABS/PC blend with ABS and PC compositions in the ratio 40/60. We have fabricated the Thermoplastic Nanocomposites specimens as per ASTM standards, with the Acrylonitrile Butadiene Styrene (ABS) and Polycarbonate (PC) blend as matrix material and with 1%, 2%, 3%, 4%, 5% and 6% HNT reinforcement material using Co–Rotating Intermeshing Twin Screw Extruder by Melt Compounding. Mechanical Tests were conducted and results were compared with the original ABS/PC blend. Effects of Halloysite Nanotubes reinforcement percentage were discussed in detail. The obtained results suggested that ABS/PC (40/60) blend with 4% reinforcement of Halloysite Nanotubes executed better mechanical properties. SEM is used to study the failure mechanism of the proposed Nano composite.

Morphology and Crystallization Behavior of Toughened Poly(Trimethylene Terephthalate) Blends with Acrylonitrile-Butadiene-Styrene

2013 ◽  
Vol 791-793 ◽  
pp. 240-243
Author(s):  
Kun Yan Wang
Keyword(s):  
Crystallization Behavior ◽  
Acrylonitrile Butadiene Styrene ◽  
Screw Extruder ◽  
Differential Scanning Colorimetry ◽  
The Matrix ◽  
Twin Screw ◽  
Trimethylene Terephthalate ◽  
Partical Size ◽  
Scanning Electron ◽  
Butadiene Styrene

Poly (trimethylene terephthalate) (PTT)/acrylonitrile-butadiene-styrene (ABS) blends have been prepared in composition with various ratios using the twin screw extruder approach. Their morphologies and crystallization behavior were investigated. Typical sea-island morphologies were observed by scanning electron microscopy. The partical size of ABS increased as the content of ABS increasing. Differential scanning colorimetry (DSC) experiments showed that the melting point of pure PTT and their blends was almost constant. The presence of the ABS increased the crystallinity of the matrix in PTT/ABS blends with ABS content less than 30wt%.

Effect of Compatibilizer and Flexibilizer on the Mechanical Properties of Acrylonitrile-Butadiene-Styrene)/Poly(Methyl Methacrylate) Blends

2014 ◽  
Vol 496-500 ◽  
pp. 317-321
Author(s):  
Shou Hai Wang ◽  
Jun Gao ◽  
Gu Ren Fei ◽  
Ping Zhang ◽  
Jun Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Maleic Anhydride ◽  
Methyl Methacrylate ◽  
Acrylonitrile Butadiene Styrene ◽  
Screw Extruder ◽  
Polyolefin Elastomer ◽  
Twin Screw ◽  
Orthogonal Tests ◽  
Butadiene Styrene

Acrylonitrile-butadiene-styrene (ABS) / polymethyl methacrylate (PMMA) with the addition of maleic anhydride grafted polystyrene (KT-5) and polyolefin elastomer (POE) were melt processed in a co-rotating twin-screw extruder. The effect of KT-5 and POE content on the mechanical properties of ABS/PMMA was investigated. Experiment results indicate that KT-5 can improve the tensile strength and the composites are toughened effectively as the addition of POE. According to Orthogonal tests, it demonstrates that POE ha a greater effect on the blends than KT-5, and there exist no obvious interactivity between the two components.

Study of a novel co-rotating non-twin screw extruder in processing flame retardant polymer materials

2017 ◽  
Vol 37 (8) ◽  
pp. 827-835
Author(s):  
Song Zhao ◽  
Baiping Xu ◽  
Liang He ◽  
Huiwen Yu ◽  
Shouzai Tan
Keyword(s):  
Flame Retardant ◽  
Mechanical Performance ◽  
Acrylonitrile Butadiene Styrene ◽  
Operating Conditions ◽  
Polymer Materials ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Limiting Oxygen Index ◽  
Twin Screw ◽  
Halogen Free

Abstract A thorough study was carried out to investigate the priority of a novel co-rotating non-twin screw extruder (NTSE) over a traditional twin screw extruder (TSE) in the mixing process of halogen-free intumescent flame-retardant acrylonitrile-butadiene-styrene (ABS) composites. The homogeneity of the flame-retardant additives of the composites processed by NTSE and TSE under the same operating conditions was characterized by using mechanical performance properties, limiting oxygen index values, UL-94 tests, and thermogravimetric analysis. All the results suggested that NTSE could achieve better mixing of the flame-retardant additives in the polymer matrix than TSE, which was further clarified by the scanning electron microscope pictures.

scholarly journals Morphological, Thermal and Mechanical Properties of 90/10 (WT %/WT %) PP/ABS Blends and their Polymer Nanocomposites

2017 ◽  
Vol 26 (6) ◽  
pp. 096369351702600 ◽  
Author(s):  
Pravin R. Kubade ◽  
Pankaj Tambe ◽  
Hrushikesh B. Kulkarni
Keyword(s):  
Impact Strength ◽  
Tensile Modulus ◽  
Acrylonitrile Butadiene Styrene ◽  
Halloysite Nanotubes ◽  
Thermal And Mechanical Properties ◽  
Melt Mixing ◽  
Uniform Dispersion ◽  
Selective Localization ◽  
Droplet Morphology ◽  
Butadiene Styrene

Halloysite nanotubes (HNTs) are modified successfully using polyethyleneimine (PEI). The HNTs and HNTs modified using PEI filled 90/10 (wt/wt) polypropylene (PP) and acrylonitrile butadiene styrene (ABS) blends and its nanocomposites are prepared by melt mixing technique in presence of dual compatibilizer. Droplet morphology is refined in matrix as well as selective localization of HNTs modified using PEI shows increase in crystallinity of PP phase and formation of β-form of PP crystals. Uniform dispersion of HNTs modified using PEI in PP resulted in improvement in impact strength, tensile modulus and thermal stability. The enhancement in tensile strength, tensile modulus, and impact strength for 1 wt% of HNTs modified using PEI filled 90/10 (wt/wt) PP/ABS blends with dual compatibilizer are 14.9, 20 and 15%, respectively.

Effect of Flame Retardants on Performance of PALF/ABS Composites

2013 ◽  
Vol 747 ◽  
pp. 351-354 ◽  
Author(s):  
Poonsub Threepopnatkul ◽  
Thanaphat Krachang ◽  
Wipawee Teerawattananon ◽  
Katawut Suriyaphaparkor ◽  
Chanin Kulsetthanchalee
Keyword(s):  
Mechanical Properties ◽  
Flame Retardants ◽  
Acrylonitrile Butadiene Styrene ◽  
Superior Performance ◽  
Molding Machine ◽  
Screw Extruder ◽  
Pineapple Leaf Fiber ◽  
Twin Screw ◽  
Diphenyl Phosphate ◽  
Butadiene Styrene

This research is to study the effect of two different flame retardants i.e., bisphenol-A bis (diphenyl phosphate) (BDP) and 9, 10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) on the flammability and mechanical properties of the composites of modified natural pineapple leaf fiber (PALF) reinforced acrylonitrile butadiene styrene (ABS). A 10% by weight of such PALF was compounded with ABS using diisononyl phthalate 1% w/w as plasticizer at the different flame retardant concentration (10 and 20 wt%) in a co-rotating twin screw extruder. An injection molding machine was used to prepare the specimens. The effects of flame-retardants showed that the PALF/ABS composite containg DOPO showed superior performance in terms of flammabitily. Higher content of flame retardants led to increase LOI value. Moreover, the composites added DOPO produce enhanced mechanical properties such as youngs modulus and tensile strength.

Morphological, mechanical, and thermal properties of PP/SEBS/talc composites

2019 ◽  
pp. 089270571987667 ◽  
Author(s):  
Carlos Ivan Ribeiro de Oliveira ◽  
Marisa Cristina Guimarães Rocha ◽  
Joaquim Teixeira de Assis ◽  
Ana Lúcia Nazareth da Silva
Keyword(s):  
Thermal Properties ◽  
Impact Resistance ◽  
Mechanical And Thermal Properties ◽  
Processing Conditions ◽  
Screw Extruder ◽  
Crystallinity Degree ◽  
Twin Screw ◽  
The Impact ◽  
Scanning Electron ◽  
Nucleating Effect

The aim of this study is to evaluate the effect of some experimental variables such as the content of styrene–ethylene–butylene–styrene (SEBS) and talc, processing conditions and mixing protocol on the properties of polypropylene (PP). To achieve this objective, PP/SEBS blends and PP/SEBS/talc composites were processed in a corotating twin-screw extruder. A masterbatch of PP/talc was prepared before the extrusion of PP/SEBS/talc composites. The morphology of blends and composites was evaluated by scanning electron microscopy, which revealed the dispersion of small rubber droplets in the PP matrix. Moreover, the micrographs also showed that SEBS and talc particles were uniformly dispersed and distributed in the polymer matrix. Results of thermal properties showed that talc had a nucleating effect, which promoted the increase of both PP crystallization temperature and crystallinity degree. The incorporation of talc in PP/SEBS blends led to an expressive increase in the impact resistance by 70% as compared with the reference blend: PP/SEBS 80/20% (w/w). This result reveals that although the PP/SEBS/talc composites showed a separated morphology, the good dispersion and distribution of this mineral filler in the polymers contributed to avoid crack propagation and increase the impact properties. The tensile properties in the elastic region were not significantly affected.

Study on the Mechanical Properties and Surface Gloss of Acrylonitrile Butadiene-Styrene/Poly(Methyl Methacrylate)/Ethylene Methacrylate Copolymer (EMA) Composites

2014 ◽  
Vol 496-500 ◽  
pp. 327-330
Author(s):  
Shou Hai Wang ◽  
Jun Gao ◽  
Shu Xia Lin ◽  
Ping Zhang ◽  
Jun Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Methyl Methacrylate ◽  
Acrylonitrile Butadiene Styrene ◽  
Screw Extruder ◽  
Twin Screw ◽  
Methacrylate Copolymer ◽  
Surface Gloss ◽  
Pmma Blends ◽  
Butadiene Styrene

Ethylene methacrylate (EMA) copolymer toughened acrylonitrile-butadiene-styrene (ABS)/polymethyl methacrylate (PMMA) were prepared in a co-rotating twin-screw extruder. The effect of EMA on mechanical properties and surface gloss of ABS/PMMA blends was investigated. Experiment results show that the toughness of ABS/PMMA is improved effectively with the incorporation of EMA, while the tensile strength and glossiness decrease slightly. ABS/PMMA/EMA blends present optimum mechanical and luster properties when the content of EMA is 6wt%.

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