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

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%.

2017 ◽  
Vol 31 (2) ◽  
pp. 202-222 ◽  
Author(s):  
SMD Mastan Saheb ◽  
Pankaj Tambe ◽  
M Malathi

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.


2014 ◽  
Vol 496-500 ◽  
pp. 317-321
Author(s):  
Shou Hai Wang ◽  
Jun Gao ◽  
Gu Ren Fei ◽  
Ping Zhang ◽  
Jun Huang ◽  
...  

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.


2010 ◽  
Vol 24 (15n16) ◽  
pp. 2459-2465 ◽  
Author(s):  
R. J. T. LIN ◽  
D. BHATTACHARYYA ◽  
S. FAKIROV

The concept of microfibrillar composite (MFC) has been used to create a new type of polymer composites, in which the reinforcing microfibrils are loaded with carbon nanotubes (CNT). Polyamide 66 (PA66) has been melt blended with polypropylene in a twin screw extruder with and without CNT, and thereafter cold drawn to create a fibrillar state as well as to align the CNT in the PA66 microfibrils. The drawn bristles were compression moulded at 180°C to prepare MFC plates. The scanning electron microscope (SEM) observations indicate near perfect distribution of CNT in the reinforcing PA66 microfibrils. Although the fibrillated PA66 is able to improve the tensile stiffness and strength as expected from the MFC structure, the incorporation of CNT does not exhibit any further enhancing effect. It rather adversely affects the mechanical properties due to poor interface adhesion between the matrix and the reinforcing microfibrils with the presence of CNT, as demonstrated by SEM. However, the resulting highly aligned CNT within the MFC are expected to affect the physical and functional properties of these composites.


2018 ◽  
Vol 24 (8) ◽  
pp. 6000-6003
Author(s):  
Y. Narendra Babu ◽  
M. Venkateswara Rao ◽  
A. Gopala Krishna

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.


2013 ◽  
Vol 747 ◽  
pp. 351-354 ◽  
Author(s):  
Poonsub Threepopnatkul ◽  
Thanaphat Krachang ◽  
Wipawee Teerawattananon ◽  
Katawut Suriyaphaparkor ◽  
Chanin Kulsetthanchalee

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.


2011 ◽  
Vol 415-417 ◽  
pp. 325-328 ◽  
Author(s):  
Kun Yan Wang ◽  
Shi Yang Zhou ◽  
Xu Qing Xu ◽  
Feng Cao

The blends of poly(trimethylene terephthalate) (PTT) with maleated styrene-butylene-co-ethylene-styrene copolymer (SEBS-g-MA) were prepared by melt blending. Their morphologies and crystallization behavior were investigated. Morphology observation shows the well-dispersed phase of SEBS-g-MA in PTT matrix and the partical size of SEBS-g-MA increased as the content of SEBS-g-MA increasing. Differential scanning colorimetry(DSC) experiments showed that the melting point of pure PTT and their blends was almost constant. Addition of 5-30wt% SEBS-g-MA in blends increased crystallization points of PTT phase and the crystallinity of the blends were higher than that of PTT.


2014 ◽  
Vol 496-500 ◽  
pp. 327-330
Author(s):  
Shou Hai Wang ◽  
Jun Gao ◽  
Shu Xia Lin ◽  
Ping Zhang ◽  
Jun Huang ◽  
...  

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%.


2020 ◽  
Vol 20 (2) ◽  
pp. 276 ◽  
Author(s):  
Mohd Bijarimi ◽  
Noor Shahadah ◽  
Azizan Ramli ◽  
Said Nurdin ◽  
Waleed Alhadadi ◽  
...  

A melt blending of poly(lactic acid) (PLA)/acrylonitrile-butadiene-styrene (ABS) with 30:70 PLA:ABS was prepared by a twin screw extruder with a die of 25 mm width and 0.5 mm thickness with various loadings of graphene (0–1.0 wt.%). The PLA/ABS blends were evaluated by mechanical, morphology, thermal and interaction of the components of the blend. Results show the incorporation of graphene nanoplatelet (GNP) improved the tensile and modulus properties. Nevertheless, it was observed that at higher GNP loadings i.e. 0.6–1.0 wt.%, both tensile and modulus properties showed a decreasing trend. It was also found that the thermal stability for the blend slightly improved when graphene presence in the blend.


2019 ◽  
Vol 8 (2) ◽  
pp. 1866-1869 ◽  

poly lactic acid (PLA), Acrylonitrile butadiene styrene (ABS) and tapioca cassava starch powder (TCSP) were melt blended using twin screw extruder. Mechanical properties, which are tensile strength, young’s modulus, % elongation and flexural strength Vs. flexural modulus determined by the help of Universal testing machine (INSTRON UTM-3969) .Morphological of PLA/ABS /TCSP blends was investigated by the help of scanning electron microscopy (SEM), the SEM images of (b-d) shows spherical morphology on the tensile fractured


2018 ◽  
Vol 777 ◽  
pp. 90-94
Author(s):  
Kun Yan Wang

Poly (trimethylene terephthalate) (PTT)/Poly (ethylene-butylacrylate-glyciyl methacrylate) (PTW) blends have been prepared in composition by weight 95/5, 90/10, 80/20 and 70/30 using the twin screw extruder approach. Their morphologies, crystallization behavior and mechanical properties were investigated. Scanning electron microscopy observation shows the uniform dispersion of PTW in PTT matrix with weight-average particle size from 0.98 to 3.64μm when the PTW content increases from 5wt% to 30wt% in the blends. The presence of the PTW increased the crystallinity of PTT matrix in PTT/PTW blends. A nucleation activity of the PTW appears in PTT/PTW blends.


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