Iranian Polymer Journal
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Maleated polyethylene as a compatibilizing agent in cannabis indica stem’s flour-reinforced composite materials
Iranian Polymer Journal - Tập 27 - Trang 819-827 - 2018
Ethylene propylene diene terpolymer (EPDM) composites reinforced with wood flour of White Russian indica cannabis (ICF), a variety of marijuana obtained from government-licensed crops, were prepared. Wide particle size distribution range (136–1580 µm) of ICF was used. The wood flour was superficially treated with sodium hydroxide, and subsequently washed and dried. Composites with 30 and 60 parts ...... hiện toàn bộ
In situ polymerization of ε-caprolactam in the presence of polyester polyol and nanosilica toward amorphous polyamide6/SiO2 nanocomposite
Iranian Polymer Journal - Tập 24 - Trang 945-952 - 2015
Amorphous polyamide6/fumed silica nanocomposites are a new class of polyamides with improved barrier properties. Recently, polymer/fumed silica nanocomposites have received much attention due to the benefits of strongly improved physical, mechanical and chemical properties compared to the pure polymer. In this study, an amorphous nanocomposite of polyamide6 was prepared via in situ polymerization ...... hiện toàn bộ
Tổng hợp và đặc trưng hóa các lớp nanosheet bor nitride lục giác được graft polystyrene và ứng dụng tiềm năng của chúng trong chất lỏng truyền nhiệt Dịch bởi AI
Iranian Polymer Journal - Tập 26 - Trang 467-480 - 2017
Ba phương pháp khác nhau đã được sử dụng để phát triển các lớp nanosheet bor nitride lục giác (h-BN) được biến tính bề mặt, và quá trình grafting polystyrene được thực hiện thông qua việc hình thành liên kết cộng hóa trị gián tiếp giữa các lớp nanosheet h-BN đã được sửa đổi và các phân tử styrene thông qua phương pháp polymer hóa gốc điều khiển bắt đầu bề mặt (SI-ATRP). Trong tất cả các phương phá...... hiện toàn bộ
Biosorption of cadmium using a novel, renewable and recoverable modified natural cellulose bearing chelating Schiff base ligand based on 2-hydroxy-5-methyl benzaldehyde
Iranian Polymer Journal - Tập 27 - Trang 461-468 - 2018
Natural cellulose was extracted from Sesbania sesban plant. A novel approach toward chemically modified cellulose, bearing active chelating Schiff base, was synthesized using 2-hydroxy-5-methyl benzaldehyde. The chemical and structural features of the adsorbent were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy dispersive analysis o...... hiện toàn bộ
Radiation crosslinked polyvinyl alcohol/polyvinyl pyrrolidone/acrylic acid hydrogels: swelling, crosslinking and dye adsorption study
Iranian Polymer Journal - Tập 30 - Trang 1101-1116 - 2021
Hydrogels were produced from mixtures of polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP), and acrylic acid (AAc) using γ-radiation at doses of 3, 7, and 10 kGy and the effect of the variation in concentration of AAc within 0%–3% (w/v) on the gelation, swelling, crosslinking, thermal properties, crystallinity, mechanical properties, and surface morphology of the hydrogels were characterized an...... hiện toàn bộ
New routes to prepare superabsorbent polymers free of acrylate cross-linker
Iranian Polymer Journal - Tập 24 - Trang 849-859 - 2015
In this study, new series of superabsorbent polymers, which were free of acrylate cross-linkers, were synthesized and their absorbent properties were evaluated. The new superabsorbent polymers showed high free swell and absorbency under loading. They were synthesized in a single-step process through a solution polymerization of partially neutralized acrylic acid in the presence of cross-linking ag...... hiện toàn bộ
Shape-stable phenolic/polyethylene glycol phase change material: kinetics study and improvements in thermal properties of nanocomposites
Iranian Polymer Journal - Tập 27 - Trang 495-505 - 2018
Storage, transformation, and absorption of energy play effective roles in application and performance of heat and thermal energy beneficiary. Phase change materials (PCMs) are substances with high heat of fusion which can be utilized to design thermal protective and thermal energy storage systems. However, PCM leakage in phase changing process is a well-known disadvantage of the PCM containing sys...... hiện toàn bộ
Lignins of various taxonomical origins: structural features, adsorption and antioxidant properties
Iranian Polymer Journal - Tập 32 - Trang 1377-1391 - 2023
The proposed work is in line with current trends in the development of nature-like technologies and is devoted to analyzing the chemical structure and searching for new ways to use lignins for biomedical applications. Lignins are interesting biopolymers of the plant origin whose structural organization is multivariate and largely depends on the biological species of the plant. The objects of the s...... hiện toàn bộ
Flammability, smoke production, and mechanical properties of thermoplastic polyurethane composites with an intumescent flame-retardant system and nano-silica
Iranian Polymer Journal - Tập 32 - Trang 1165-1178 - 2023
The aim of this work is to enhance the fire safety of thermoplastic polyurethane (TPU) composites by developing an intumescent flame-retardant (IFR) system consisting of ammonium polyphosphate (APP), melamine polyphosphate (MPP), and pentaerythritol (PER), with nano-silica as synergist. TPU/IFR composites were prepared with various APP/MPP/PER ratios and the optimal ratio of these flame retardants...... hiện toàn bộ
Adsorption and release of caffeine from smart PVDF polyampholyte membrane
Iranian Polymer Journal - Tập 28 - Trang 639-647 - 2019
pH sensitivity, load, and release of caffeine from polyampholyte, acrylic acid (AAc), and 2-N,N-dimethylamino ethyl methacrylate (DMAEMA) grafted onto DURAPORE® PVDF membrane were studied. Polyampholyte was previously “grafted-from” on membranes by gamma irradiation technique in two steps: (1) PVDF-g-DMAEMA using direct method and (2) grafted AAc by pre-irradiation method, to obtain (PVDF-g-DMAEMA...... hiện toàn bộ
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