Work of fracture of polystyrene/high density polyethylene blends compatibilized by triblock copolymer

Tjong, Sie Chin; Xu, Shiai; Li, Robert K.Y.

doi:10.1002/1097-4628(20000829)77:9<2074::aid-app25>3.0.co;2-#

Cited by 17 publications

(3 citation statements)

References 26 publications

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“…Recently, the EWF method that originally proposed by Broberg [12] has been progressively used to evaluate the fracture toughness of polymer matrix composites [13][14][15]. The total fracture work of a specimen having a sharp crack (W f ) is partitioned into EWF (W e ), i.e., the work required to create new surface in its process zone and the non-EWF or plastic work (Wp),i.e., associated with the work done by various deformation mechanisms in the plastic zone and volume-related.…”

Section: Introductionmentioning

confidence: 99%

Impact fracture toughness evaluation by essential work of fracture method in high density polyethylene filled with zeolite

Purnomo¹,

Soenoko²,

Suprapto³

et al. 2016

FME Transaction

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Section: Introductionmentioning

confidence: 99%

Impact fracture toughness evaluation by essential work of fracture method in high density polyethylene filled with zeolite

Purnomo¹,

Soenoko²,

Suprapto³

et al. 2016

FME Transaction

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“…However, the great disadvantages which limit its application range are the relatively large molding shrinkage and poor impact toughness when subjected to high loading rate conditions, especially at low temperature. According to literatures, the short glass fiber (SGF) and ethylene-1-octene (EOC) have been considered the most effective reinforcement and impact modifier, respectively, to overcome these drawbacks of PP [1][2][3][4]. However, Tjong et al [5][6][7][8] claimed that in the ternary systems, it was the addition of rigid short glass fiber (SGF) or inorganic particle into PP/elastomer blends that could compensate the reduction in strength and stiffness resulted from soft elastomer and maintained a stiff-toughness balance of the ternary composites.…”

Section: Introductionmentioning

confidence: 99%

Study on the Morphologies and Mechanical Properties of PP/EOC/SGF Composites with and without Compatilizers

Yang

Xu²

2013

AMM

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The polypropylene/ethylene-1-octene/short glass fiber (PP/EOC/SGF) ternary composites were prepared by extrusion and subsequent injection processes. The effects of compatilizers, including maleic anhydride grafted PP (PP-g-MAH) and maleic anhydride grafted EOC (EOC-g-MAH), on the evolution of phase structures and mechanical properties of PP composites were examined. Results show that the interfacial adhesion between SGF and matrix are enhanced significantly. Moreover, the EOC-g-MAH promotes to form the elastomeric particle-embedded configuration. Mechanical testing reveals that the PP/EOC/SGF composites characterized by much higher impact toughness and keeping the competitively tensile properties could be obtained through co-incorporation of SGF and EOC as well as right compatilizers adopted.

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“…Thus, a compatibilizer is needed to improve the interfacial tension and dispersion of the immiscible polymer blends. It is now well‐known that copolymers, especially block copolymer such as styrene‐butadiene‐styrene (SBS),8 styrene‐acrylonitrile (SAN),9 and styrene‐etheylene‐butylene‐styrene (SEBS),10, 11 are effective for this purpose.…”

Section: Introductionmentioning

confidence: 99%

Toughening of recycled polystyrene used for TV backset

Ding

Tang

et al. 2008

J of Applied Polymer Sci

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The recycled polystyrene (rPS) was toughened with ethylene-octylene copolymer thermoplastic elastomer (POE) and high-density polyethylene (HDPE) with various melt flow index (MFI), compatibilized by styrene-butadiene-styrene copolymer (SBS) to enhance the toughness of rPS for use as TV backset. The rPS/POE binary blends exhibited an increased impact strength with 5-10 wt % POE content followed by a decrease with the POE content up to 20 wt %, which could be due to poor compatibility between POE and rPS. For rPS/POE/SBS ternary blends with 20 wt % of POE content, the impact strength increased dramatically and a sharp brittle-ductile transition was observed as the SBS content was around 3-5 wt %. Rheological study indicated a possible formation of network structure by adding of SBS, which could be a new mechanism for rPS toughening. In rPS/POE/HDPE/SBS (70/20/5/5) quaternary blends, a fibril-like structure was observed as the molecular weight of HDPE was higher (with lower MFI). The presence of HDPE fibers in the blends could not enhance the network structure, but could stop the crack propagation during fracture process, resulting in a further increase of the toughness. The prepared quaternary blend showed an impact strength of 9.3 kJ/m 2 and a tensile strength of 25 MPa, which can be well used for TV backset to substitute HIPS because this system is economical and environmental friendly.

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Work of fracture of polystyrene/high density polyethylene blends compatibilized by triblock copolymer

Cited by 17 publications

References 26 publications

Impact fracture toughness evaluation by essential work of fracture method in high density polyethylene filled with zeolite

Impact fracture toughness evaluation by essential work of fracture method in high density polyethylene filled with zeolite

Study on the Morphologies and Mechanical Properties of PP/EOC/SGF Composites with and without Compatilizers

Toughening of recycled polystyrene used for TV backset

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