Search Results - Iran Polymer & Petrochemical Institute

Radiation shielding characteristics of HDPE/tungsten oxide nanocomposites reinforced with graphene oxide and LDPE using Geant4, XCOM and experiment by Shahryar Malekie, Mohammad Amin Hosseini, Ahmadreza Abiz, Fatemeh Bolourinovin, Suffian Mohamad Tajudin

“…This research aims to determine and quantify the radiation shielding characteristics of high-density polyethylene/ tungsten oxide (HDPE/WO3) nanocomposites…”
Get full text

Finely-tuned strength-toughness balance of PPR/UHMWPE blends via shear-enhanced crystal orientation and cocrystal-locked UHMPE particles by Zhijie Zhao, Ping Hai, Minjuan Zhang, Yongbiao Zheng, Yuerong Chen, Cunling Long, Hongtao Zhang, Xinyi Zhang

“…The presence of ultrahigh molecular weight species in polymer melt facilitates the formation of highly-oriented crystalline structures and favors the…”
Get full text

Correlation of morphology, rheology, and impact strength in compatibilized polypropylene/ polybutadiene rubber thermoplastic vulcanizates by Somayeh Rafiei, Davood Soudbar, Minoo Sadri, Fatemeh Shafiei

“…This research aims to determine and quantify the radiation shielding characteristics of high-density polyethylene/ tungsten oxide (HDPE/WO3) nanocomposites…”
Get full text

A study of polypropylene and graphene and their nanocomposites using ANSYS by Aamir Shaikh, Pravin Kubade

“…Polymers can be natural or synthetic and are largely used in several applications due to their versatile properties. Polymers can vary widely in their…”
Get full text

Molecular dynamics simulation of static crystallization and tensile deformation of bimodal HDPE/UHMWPE: Influence of long chain content by Fan Zhang, Jieqi Wang, Yangyang Zhao, Xuelian He

“…The effect of long chain content (XL) on the static crystallization and tensile deformation mechanisms of bimodal HDPE/UHMWPE was investigated by molecular…”
Get full text

Experiments and analysis of stress-induced stiffening of a polypropylene by Ahmed Hamdi

“…Describing the solidification process is very important in polymer processing. In polypropylene (PP), the increase of viscosity, named stiffening or hardening,…”
Get full text

Kinetic and microstructural studies of Cp2ZrCl2 and Cp2HfCl2-catalyzed oligomerization of higher α-olefins in mPAO oil base stocks production by Ahad Hanifpour, Mahdi Hashemzadeh Gargari, Mohammad Reza Rostami Darounkola, Zahra Kalantari, Naeimeh Bahri-Laleh

“…Herein a quenched-flow kinetic technique was applied to calculate the rate constants of 1-hexene and 1-octene oligomerization catalyzed by the Cp2ZrCl2 and…”
Get full text

Synthesis of novel styrene-olefin triblock copolymer via living anionic polymerization by Mohammad Jozaghkar, Farshid Ziaee

“…Innovative strides in polymer synthesis have led to the successful living anionic polymerization of styrene-olefin triblock copolymers, yielding varying…”
Get full text

Chemical state analysis of magnesium-supported Ziegler-Natta catalyst by soft X-ray emission spectrometer (SXES) after contact with alkyl aluminum by Masayoshi Saito, Hiroshi Kashimura, Takuo Kataoka, Masahide Murata, Yusuke Sakuda, Hiroyuki Yamada, Hideyuki Takahashi

“…This report is on the characterization of active Ti center in heterogeneous Ziegler-Natta catalysts with Soft X-ray Emission Spectrometer (SXES). Since…”
Get full text

Homo- and co-polymerization of polar and non-polar olefinic monomers using bicenter cobalt-diimine catalysts by Majedeh Mroofi, Gholamhossein Zohuri, Saeid Ahmadjo, Navid Ramezanian

“…Bicenter (BCn) cobalt-bis(imine) catalysts were synthesized, used to polymerize methyl methacrylate (MMA), and 1-hexene. The effect of catalyst structure,…”
Get full text

Magnesium alkoxide precursor to Ziegler-Natta catalyst - emphasis on morphology studies through computer vision approach by Yogeshwar Thakare, Ajay Kothari, Saurabh Shinde, Pooja Kadam, Natarajan Venkateswaran, Virendrakumar Gupta

“…MgCl2 supported Ti catalyst is used in commercial propylene polymerization process. Morphology is a key performance determination parameter for polymer resins…”
Get full text

Preparing a modified and promoted homogeneous titanium catalyst for ethylene dimerization to butene-1 by Sajjad Bahrami Reyhan, Seyed Mahdi Alavi, Davood Soudbar

“…Ethylene dimerization is a significant process among the other petrochemical processes due to the production of alpha olefins as the most widely used…”
Get full text

Synthesizing polypropylene with percolation network catalyzed by inorganic nanoparticles-functionalized Ziegler-Natta catalyst by Tingting Yang, Ao Li, Yawei Qin, Jin-Yong Dong

“…Polypropylene is one of the most widely used synthetic resins, which is mainly synthesized with Ziegler-Natta catalysts. In this paper, the functionalized…”
Get full text

Determination of gel content of silane cross-linked polyethylene copolymers using FTIR technique by Mehri Dana, Gholam Hossein Zohuri, Navid Ramezanian, Saeid Asadi Shahidi, Sohail Yazdanbakhsh

“…Silane cross-linking of metallocene-based polyethylene-octene elastomer (POE)/linear low density polyethylene (LLDPE) blend was carried out using two-step…”
Get full text

Ultra-high molecular weight polyethylene synthesis using externally modified Si-Mg-Ti based Z-N catalyst system by Hiren Bhajiwala, Virendrakumar Gupta

“…Ultra-high molecular weight polyethylene (UHMWPE) was synthesized using Bi-supported SiO2/MgCl2/TiCl4 (Si-Mg-Ti) Ziegler-Natta catalyst in conjugation with…”
Get full text

Ultra-high molecular weight polypropylene (UHMWPP): Synthesis and fiber processing by Parthiv Trivedi, Sandip Patil, Virendra K. Gupta

“…Ultra-high molecular weight polyolefin (UHMWPO) has enormous potential applications due to their excellent mechanical properties such as tensile strength,…”
Get full text

Effect of quenching temperature and filler rate on the mechanical thermal and physical properties of composites: Polypropylene/calcium carbonate by Leila Latreche, Samira Maou, Lokmane-Taha Abdi, Tahir Habila, Yazid Meftah

“…Polypropylene (PP) is a strong, tough, crystalline thermoplastic material with high performance. Because of its diverse thermo-physical and mechanical…”
Get full text

Competitive effect of calcium lactate and epoxidized soil bean oil on crystallization kinetics of polypropylene by Buncha Suksut, Chonticha Seesong, Nutchalida Phueaksri, Chantarawan Chuephlob

“…The effect of calcium lactate (CL) and epoxidized soil bean (ESO) on the crystallization kinetics of polypropylene (PP) was investigated by using polarized…”
Get full text

Effect of compatibilizer and nanosilica on the mechanical, thermal, and degradation kinetic properties of polypropylene/polylactic acid blends by Aravind Raj, Pachipala Rithik, Prathipati Sai Sudheer, Kedarisetty Sampath Vachan, Murugasamy Kannan

“…In this study, polypropylene (PP) was blended with polylactic acid (PLA) to enhance PP's mechanical properties, such as tensile strength and modulus, and to…”
Get full text

High-Speed Melt Spinnability, Structural and Physical Properties of a Low Melting Copolyester Multifilament Yarn by Mohammad Ali Tavanaie, Mohammad Karimi, Amin Ebrahimzade, Maryam Korang Beheshti, Shahin Kazemi

“…Hypothesis: Fibers with low melting point have high bonding strength with other fibers, and in addition, they have a controllable melting temperature and good…”
Get full text