Mohammad Dalour Beg | Universiti Malaysia Pahang (UMP) (original) (raw)

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Research paper thumbnail of Preparation and Characterization of Low-Density Polyethylene/Thermoplastic Starch Composites

Advances in Polymer Technology, 2015

In this study, sago starch was physically blended with low-density polyethylene (LDPE) via the me... more In this study, sago starch was physically blended with low-density polyethylene (LDPE) via the melt blending
process followed by injection molding to produce LDPE/sago starch (LPS) composites. The sago starch content was varied from 5 to
30 wt% of LDPE. The addition of starch to LDPE reduced the melt flow rate (MFR), the tensile strength, and impact strength, whereas
the tensile modulus, flexural strength, and flexural modulus increased. To improve poor mechanical properties of the LPS,
LDPE/glycerol thermoplastic starch (LPGTS) or LDPE/2:1 mixture of glycerol and urea thermoplastic starch (LPMTS) was used in
this study. The effect of compatibilizer (maleic anhydride) on properties of the LPMTS specimens was also investigated. The LPS,
LPGTS, LPMTS, and maleic anhydride treated LPMTS (LPMTSM) samples were analyzed for the MFR, mechanical properties
(tensile, flexural, and impact tests), thermal (TGA and DSC), and morphological properties. As a result, the incorporation of
plasticizers or compatibilizer into LPS caused the considerable improvement in MFR and mechanical properties. Moreover, the
presence of compatibilizer produced better properties for the LPMTSM sample than for the other samples, indicating better
dispersion and homogeneity of starch to the matrix. In addition, thermal stability, DSC, and phase morphology were carried out for
different LPS samples. C 2015 Wiley Periodicals, Inc. Adv Polym Technol 2016, 35, 21521; View this article online at
wileyonlinelibrary.com. DOI 10.1002/adv.21521

Research paper thumbnail of Preparation and Characterization of Low-Density Polyethylene/Thermoplastic Starch Composites

Advances in Polymer Technology, 2015

In this study, sago starch was physically blended with low-density polyethylene (LDPE) via the me... more In this study, sago starch was physically blended with low-density polyethylene (LDPE) via the melt blending
process followed by injection molding to produce LDPE/sago starch (LPS) composites. The sago starch content was varied from 5 to
30 wt% of LDPE. The addition of starch to LDPE reduced the melt flow rate (MFR), the tensile strength, and impact strength, whereas
the tensile modulus, flexural strength, and flexural modulus increased. To improve poor mechanical properties of the LPS,
LDPE/glycerol thermoplastic starch (LPGTS) or LDPE/2:1 mixture of glycerol and urea thermoplastic starch (LPMTS) was used in
this study. The effect of compatibilizer (maleic anhydride) on properties of the LPMTS specimens was also investigated. The LPS,
LPGTS, LPMTS, and maleic anhydride treated LPMTS (LPMTSM) samples were analyzed for the MFR, mechanical properties
(tensile, flexural, and impact tests), thermal (TGA and DSC), and morphological properties. As a result, the incorporation of
plasticizers or compatibilizer into LPS caused the considerable improvement in MFR and mechanical properties. Moreover, the
presence of compatibilizer produced better properties for the LPMTSM sample than for the other samples, indicating better
dispersion and homogeneity of starch to the matrix. In addition, thermal stability, DSC, and phase morphology were carried out for
different LPS samples. C 2015 Wiley Periodicals, Inc. Adv Polym Technol 2016, 35, 21521; View this article online at
wileyonlinelibrary.com. DOI 10.1002/adv.21521