Journal of Materials and Polymer Science最新文献

{"title":"Eutectic Mixtures of Metallomesogens as Potential Materials for Electro-Optical Applications","authors":"","doi":"10.47485/2832-9384.1012","DOIUrl":"https://doi.org/10.47485/2832-9384.1012","url":null,"abstract":"In this work, we present a new approach for utilization of eutectic mixtures of metallomesogens (MOM) as potential materials in electro optical devices. We studied the phase diagrams of blends of synthesized rod-like Palladium (Pd) alkyl/alkoxy-azobenzene complexes with their parent ligands and commercial nematic liquid crystal mixtures. The results indicate complete mesgenic miscibility and eutectic points of MOM-ligand mixtures. In addition, the MOMligand eutectic mixture also exhibited a complete nematic miscibility with three commercial liquid crystals TN10427, TNO623 and E43 that qualify them model materials in the guest-host electro-optical devices.","PeriodicalId":372397,"journal":{"name":"Journal of Materials and Polymer Science","volume":"07 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128204139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Straw Reinforced Unfired and Fired Clay Bricks for Sustainable Building Construction of Meskine Region (Far- North Cameroon)","authors":"","doi":"10.47485/2832-9384.1011","DOIUrl":"https://doi.org/10.47485/2832-9384.1011","url":null,"abstract":"Clay bricks are the most used building materials due to its great mechanical properties and natural abundance. Therefore, this study is performed to further investigate the mechanical properties of straw reinforced unfired (Ufb) and fired bricks (Fb) as building blocks. In this capstone, bricks with the dimensions 40 x 10 x 20 cm were prepared with addition of increasing amounts of straw (0%, 5%, 10% and 15% in wt.). Height samples were compacted; four of them were dried and for other samples were fired at 1050 °C. All the bricks samples were characterized to determine their technological properties. The results for Ufb indicate that bulk density, flexural strength and compressive strength increased up to 10% of straw in the brick formulations and decreased at 15% of addition. At the same time, linear shrinkage, water absorption and porosity decreased slightly with the addition of straw. Hence clay brick containing 10 %wt. % additives showed the best results, the increase starts to have the reversed effect when its percentage is increased beyond this level. For Fb samples results showed that only the porosity increased with straw addition, values of the other parameters decreased with this addition. The addition of straw reinforces the strength of the unfired bricks and enhances the mechanical properties of the composite up to 10% of addition. However addition of straw just increased the porosity of fired brick. Therefore, using clay with addition to straw will represent a good ecological, low energy waste solution to the construction problems as well as recycling constraints. Moreover, no firing use less energy consumption as well and gives more solids bricks for building construction.","PeriodicalId":372397,"journal":{"name":"Journal of Materials and Polymer Science","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122204154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ZSM-5-doxorubicin as a drug delivery platform for doxorubicin","authors":"Pourya Zarshenas","doi":"10.47485/2832-9384.1010","DOIUrl":"https://doi.org/10.47485/2832-9384.1010","url":null,"abstract":"The drug delivery application of Porous metal–organic frameworks (MOFs) have been investigated due to their unique structures which are built of inorganic nodes and organic ligands. In present study, zsm-5-doxorubicin was successfully prepared by applied for delivery of 5-fluorouracil (doxorubicin). Using variety of analytical methods including FTIR, FESEM, EDS, and the prepared nanostructure was characterized. Results revealed the placement of the drug in zeolite is well done and also the in vitro loading and releasing studies, for doxorubicin was evaluated. In addition, based on the in vitro cytotoxicity results, zsm-5-5Fu was able to increase cytotoxicity compared to that of doxorubicin on HT-29 cancerous cells indicating the highlighted role of this drug delivery system.","PeriodicalId":372397,"journal":{"name":"Journal of Materials and Polymer Science","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128329055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"USE OF POLYMER PACKAGING FOR VARIOUS FOOD PRODUCTS WITH LONG-TERM STORAGE","authors":"","doi":"10.47485/2832-9384.1009","DOIUrl":"https://doi.org/10.47485/2832-9384.1009","url":null,"abstract":"In the food industry, for thermal preservation of food products, various types of consumer polymer packaging can be used: rigid, semi-rigid, soft, and others. In order for plastic (polymer) packaging to be used for heat sterilization and guarantee long shelf life of food products, it must contain the necessary heat-resistant barrier layer, which will ensure the resistance of the container to high temperatures. Each polymeric material has certain indicators of heat resistance. In the work, we used such types of consumer packaging for food packaging, such as a combined metal can with a polymer lid, С-PET containers. The purpose of the study is to develop the conditions for canning, sterilization modes of food products in the range for new types of consumer polymer for specific thermal equipment. When using various types of containers for thermal sterilization and prevention of physical defects of canned food, it is necessary to take into account such technological features as the sealing strength or depressurization pressure, the sealing method, the presence or absence of a stiffness relief on the lid, the product packaging temperature and other factors. The standard membrane-compensation method was used to measure the sealing strength or the pressure of depressurization of the container, which occurs during sterilization due to thermal expansion of the product. The development of sterilization modes for canned food was carried out in accordance with the approved regulations, which includes an analytical calculation of the mode that ensures the production of industrially sterile canned food, laboratory testing of the selected mode and its production verification. The mode calculation method is based on the data on the heat resistance of the microorganism strain of the test culture, which should guarantee the industrial sterility of canned food. In the work, studies were carried out, as a result of which data were obtained on an important technological parameter of the packaging strength of sealing, without the values of which it is impossible to carry out high-quality thermal sterilization of the product. Scientifically based parameters, hightemperature sterilization regimes for meat, fish, and vegetable products in modern polymer types of consumer packaging have also been developed, which will allow enterprises to produce canned high-quality food products that are safe to use, with high nutritional value.","PeriodicalId":372397,"journal":{"name":"Journal of Materials and Polymer Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129696978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of the Polymeric State of Matter","authors":"","doi":"10.47485/2832-9384.1008","DOIUrl":"https://doi.org/10.47485/2832-9384.1008","url":null,"abstract":"The asymptotics of a number of limit states of polymers and the transformation of molecular orbitals during their polymerization are analyzed. It is shown that it is these transformed molecular bonds, and not van der Waals, that provide both the linkage of different polymolecules and the branching of each polymolecule separately. At the same time, the fundamental difference between polymers formed at the elementary level due to endothermic chemical reactions and crystals formed due to exothermic reactions is shown. The revealed patterns of polymerization make it possible to use it to create new effective media, such as high-temperature superconductors and high-performance thermoelectrics and electrolytes. And also - and to create Nano-elements for electronics and optics with a given modulation of the energy potential. In addition, such polymers, in principle, can be used as material from which organs in need of transplantation will be created.","PeriodicalId":372397,"journal":{"name":"Journal of Materials and Polymer Science","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116478556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental Investigation of Engineering Properties of Iron-Based Binary and Ternary Pozzolanic Supplementary Cementitious Materials","authors":"","doi":"10.47485/2832-9384.1024","DOIUrl":"https://doi.org/10.47485/2832-9384.1024","url":null,"abstract":"The characteristic global warming potential of ordinary Portland cement (OPC) makes it a huge challenge for researchers to weigh its enormous use with potentially feasible engineering properties versus the environmental impacts. The formulation of sustainable, economical, and greener supplementary cementitious materials (SCMs) is an ongoing phenomenon, attracting the large-scale attention of industry/ academia. The formulation of ferrock by David Stone with low embodied energy, lower consumption of natural resources and minimal global warming potential has paved the way for the use of novel material comprising iron powder, pozzolans (pulverised fly ash (PFA) and metakaolin (MK) and lime exhibiting at par performance with OPC. However, a gap has been identified in its formulation, raising a further research question on how it will perform if PFA and MK are replaced by ground granulated blast furnace slag (GGBS) or other pozzolans like silica fume (SF) etc., with different mix ratios. Therefore, an endeavour has been made in this study to identify the engineering properties with sustainable use of modified binary and ternary pozzolans/ GGBS in place of 20% PFA in conventional ferrock.\u0000\u0000The conventional ferrock contains 8% MK and 20% PFA (as binary pozzolans), 60% iron powder, 12% lime and 2% oxalic acid (set 1). An effort has been made to formulate the different mixes of 10,20,30,40 and 50% by keeping 60% iron powder, 12% lime, 8% MK and 2% oxalic acid constant but replacing 20% PFA with 20% GGBS (set 2), with 10%PFA+10%GGBS (set 3) and with 10%PFA+10%SF (set 4). A target compressive strength of C32/40 or M40 concrete was selected for this study to achieve and compare results with the control mix (0% ferrock) and conventional ferrock during the experimental investigation of modified novel materials. 10-20% ratios of modified mixes exhibited the best performance and achieved the threshold strength of 60 MPa of high-strength cement concrete. Maximum compressive strength of 65 MPa was achieved by the 10% mix of set 2 (20% GGBS), followed by 20% mix ratios of set 3 (10%PFA+10%GGBS) and set 4 (10%PFA+10%SF), achieving 64 MPa. Whereas the 10% mix of the conventional ferrock (set1) reached 63 MPa strength, and the control mix with no ferrock gained 57 MPa strength at 56 days of curing. Overall, an increase of 2-13% compressive strength was observed with10- 30% mixes of all the SCMs; however, a decrease of 3-27% was observed with 40-50% use of SCMs. The use of iron powder increased the ductility of ferrock-based SCMs mixes and exhibited more flexural strength. Set 3 performed the best in exhibiting up to 5.8 MPa flexural strength, followed by set 4, set 2 and lastly, set 1 of conventional ferrock. 20% and 30% mix ratios exhibited flexural strength of more than 5% MPa, better than 10% and 40/ 50% mixes. The study supports the use of 10-20% ferrock-based SCMs for high-strength concrete and 10-50% for concrete mixes with a target strength of C32/40 or M40 to ","PeriodicalId":372397,"journal":{"name":"Journal of Materials and Polymer Science","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127456250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanofluids- Nanotechnology and Fluid Mechanics","authors":"","doi":"10.47485/2832-9384.1007","DOIUrl":"https://doi.org/10.47485/2832-9384.1007","url":null,"abstract":"Traditional liquids have helpless warmth move properties, yet their immense applications in power age, synthetic cycles, warming and cooling cycles, hardware and other microsized applications make the reprocessing of those thermofluids to have better warmth move properties are very fundamental. As of late, it has been shown that the expansion of strong nanoparticles to different liquids can expand the warm conductivity and can impact the consistency of the suspensions by many percent. Thermophysical properties of nanofluids were shown subject to the molecule material, shape, size, fixation, the kind of the base liquid, and different added substances.","PeriodicalId":372397,"journal":{"name":"Journal of Materials and Polymer Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130036160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption of Pb2+ Ions Aqueous Environment Using the Novel CaoCdo/Zsm-5 Zeolite Nanocomposite Adsorbent","authors":"M. Sadeghi, Pourya Zarshenas","doi":"10.47485/2832-9384.1004","DOIUrl":"https://doi.org/10.47485/2832-9384.1004","url":null,"abstract":"ZSM-5 is a porous zeolite material that reveals good activity for the adsorption of heavy metals and other contaminants for effluent purification. In this scientific research, we synthesized the novel CaO-CdO/ZSM-5 zeolite nanocomposite adsorbent and studied the effects of different parameters on the adsorption of Pb2+ ions from water media for the first time. About 99.2% adsorption removal efficiency was obtained after contact time of 60 min and adsorbent amount of 0.1 g/L for initial Pb2+ concentration of 200 mg/L at pH8 and temperature of 60o C. The adsorption kinetic fit well via the pseudo-second order model. Furthermore, the adsorption results were reproduced using the Langmuir isotherm with a maximum adsorption capacity of mg/g. The thermodynamic data displayed that the adsorption of Pb2+ ions over the CaO-CdO/ZSM-5 nanocomposite were endothermic and spontaneous.","PeriodicalId":372397,"journal":{"name":"Journal of Materials and Polymer Science","volume":"693 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129026940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of Novel CuO/ZnFe2O4/NaA Zeolite Nanocomposite Adsorbent for the Decontamination of Nerve Agent Sarin Simulant","authors":"Pourya Zarshenas, M. Sadeghi, Mohammad Mahmoudi Alemi","doi":"10.47485/2832-9384.1005","DOIUrl":"https://doi.org/10.47485/2832-9384.1005","url":null,"abstract":"The aim of present research is to evaluate the decontamination of nerve agent sarin simulant dimethyl methyl phosphonate (DMMP) in water media using the CuO/ZnFe2 O4 /NaA zeolite as a novel ternary nanocomposite adsorbent. In this regard, the CuO and ZnFe2 O4 nanoparticles were successfully synthesized within the NaA zeolite applying the ultrasound-assisted hydrothermal route and characterized via XRD, FESEM, FTIR, EDAX, VSM and BET analyses. Then, the CuO/ZnFe2 O4 /NaA nanocomposite activity was investigated for the decontamination of DMMP molecule and monitored by a GC-FID and GC-MS analyses. Plus, the impacts of several parameters, including contact time, adsorbent dose and adsorbent type on the decontamination of DMMP were studied. The gained data from GC-FID analysis confirmed the maximum decontamination more than 98.4% for DMMP. The parameters including: adsorbent amount of 50 mg and contact time of 40 min were achieved as the optimized values for the decontamination reaction. In addition, the non-toxic methyl phosphoric acid (MPA) as the DMMP degradation product in the presence of CuO/ZnFe2 O4 /NaA adsorbent was characterized.","PeriodicalId":372397,"journal":{"name":"Journal of Materials and Polymer Science","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131009119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"nvestigation of Uv-Vis Characteristics of Pure/Doped Polystyrene Thin Films Prepared by Solution Casting Method","authors":"","doi":"10.47485/2832-9384.1006","DOIUrl":"https://doi.org/10.47485/2832-9384.1006","url":null,"abstract":"Minimizing the size of electronics to achieve thinner and lighter devices makes the shrinking of the components inevitable. The focus of this research is to incorporate dopants into the Polystyrene (PS) matrix to fabricate thin films with high efficiency and flexibility. Presented is a very simple approach of doping PS thin films with various dopants. The absorption spectra of the films were studied at the wavenumber range (300-700 nm). Effects of doping on optical properties such as, absorbance, transmittance, energy, absorption coefficient, extinction coefficient, and dielectric constant were derived. This study reveals that all these parameters have impact of dopants on PS.","PeriodicalId":372397,"journal":{"name":"Journal of Materials and Polymer Science","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114494202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}