A study of degration of polyethylene.

Tinçer, İ. Teoman


Ternary nanocomposites of low density, high density and linear low density polyethylenes with the compatibilizers E-MA-GMA and E-BA-MAh
Işık Coşkunses, Fatma; Yılmazer, Ülkü; Department of Chemical Engineering (2011)
The effects of polyethylene, (PE), type, compatibilizer type and organoclay type on the morphology, rheological, thermal, and mechanical properties of ternary low density polyethylene (LDPE), high density polyethylene (HDPE), and linear low density polyethylene (LLDPE), matrix nanocomposites were investigated in this study. Ethylene – Methyl acrylate – Glycidyl methacrylate terpolymer (E-MAGMA) and Ethylene – Butyl acrylate- Maleic anhydrate terpolymer (E-BA-MAH) were used as the compatibilizers. The organo...
A nonintrusive diagnostics technique for flame soot based on near-infrared emission spectrometry
Ayrancı Kılınç, Işıl; Selçuk, Nevin; Department of Chemical Engineering (2007)
A novel nonintrusive soot diagnostics methodology was developed, validated and applied for in-situ determination of temperature, volume fraction and refractive index of soot aggregates formed inside flames by using near-infrared emission spectrometry. Research was conducted in three main parts, first one addressing development and validation of a comprehensive "direct" model for simulation of line-of-sight radiative emission from axisymmetric sooty flames by coupling sub-models for radiative transfer, radia...
A comparative study on the efficiencies of polyethylene compatibilizers by using theoretical methods
Yıldırım, Erol (2012-01-01)
Functionalization of polyethylene chains by grafting of polar groups onto backbones is the most versatile way for preparing polyethylene based compatibilizers (PECs). In this work, a series of theoretical studies were performed to analyze the structure, adhesion and mixing behaviors of PECs. The effect of grafting different polar groups such as acrylic acid (AA), glycidyl methacrylate (GMA), maleic anhydride (MAH) and itaconic acid (IA) on the structure and cohesive properties of polyethylene chains were st...
A classification system for excavation of surface coal measures
Karpuz, Celal (1990-02-01)
A classification system based on the relevant rock mass and material properties of the ground and their influence on excavation equipment performance is described. An excavation rating system is proposed utilizing some rock mass and material properties which influence excavation performances; namely, uniaxial compressive strength, hardness, discontinuity spacing, degree of weathering and seismic wave velocity. The work was carried out in operating Turkish surface lignite mines. It is suggested that this sys...
A data mining application to deposit pricing: Main determinants and prediction models
Batmaz, İnci; Danışoğlu, Seza (2017-11-01)
This study provides unique empirical evidence regarding the determinants of deposit pricing by employing data mining methods and making use of proprietary data provided by a commercial bank. Results highlight the importance of taking into account customer- and account-specific characteristics in the determination of deposit rates. Contrary to existing evidence obtained from macro-level bank data, the customer- level data used in this study suggest that depositors with a multi-faceted and long-term relations...
Citation Formats
İ. T. Tinçer, “A study of degration of polyethylene.,” Ph.D. - Doctoral Program, Middle East Technical University, 1980.