Thermal, Rheological, Mechanical and Morphological Behavior of High Density Polyethylene and Carboxymethyl Cellulose Blend

Journal Article · Fri Dec 15 04:00:00 EST 2017 · Journal of Polymers and the Environment

DOI:https://doi.org/10.1007/S10924-016-0880-6· OSTI ID:22788376

Mir, Sadullah ^[1]; Yasin, Tariq ^[2]; Siddiqi, Humaira Masood ^[1]; Murtaza, Ghulam ^[3]

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1. Quaid-i-Azam University, Department of Chemistry (Pakistan)
2. Pakistan Institute of Engineering and Applied Sciences, Department of Metallurgy and Materials Engineering (Pakistan)
3. COMSATS Institute of Information Technology, Department of Pharmacy (Pakistan)

In this study water soluble sodium carboxymethyl cellulose (CMC) was blended with high density polyethylene (HDPE) by peroxide-initiated melt compounding technique. The compatibility of the blended polymers were carried out by silane crosslinking agent. A series of blends were prepared by varying the CMC contents up to a maximum of 50 phr. The physical properties of non-crosslinked and crosslinked blends were investigated in detail. FTIR analysis of crosslinked blend confirmed the presence of Si–O–Si and Si–O–C absorption peaks at 1050 and 1159 cm{sup −1}. Thermal stability of crosslinked blends improved as compared to its non-crosslinked congener. Rheological study of crosslinked blends illustrated high complex viscosity and dynamic shear storage modulus. The tensile strength of virgin polyethylene was 8.1 MPa whereas the maximum tensile strength of 19.6 MPa was observed in crosslinked blend. Similarly lower deformation was observed in crosslinked blends under static load. Scanning electron microscopy of crosslinked formulations also showed strong adhesion between the polymers interface. The compatibility of HDPE and CMC is attributed to both free radical and condensation reactions.

• OSTI ID: 22788376
• Journal Information: Journal of Polymers and the Environment, Journal Name: Journal of Polymers and the Environment Journal Issue: 4 Vol. 25; ISSN 1566-2543
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADHESION
CELLULOSE
CROSS-LINKING
DEFORMATION
FOURIER TRANSFORM SPECTROMETERS
MORPHOLOGY
PEROXIDES
POLYETHYLENES
PRESSURE RANGE MEGA PA
RADICALS
RHEOLOGY
SCANNING ELECTRON MICROSCOPY
SHEAR
SILANES
SODIUM COMPOUNDS
STATIC LOADS
TENSILE PROPERTIES
VISCOSITY
WATER