Polymers and Polymer Composites最新文献_第3页

Elaboration and characterization of biodegradable poly(aspartic-co-glutamic acid) hydrogels as soil additives with different crosslinkers 作为土壤添加剂的可生物降解聚（天冬氨酸-共谷氨酸）水凝胶与不同交联剂的配制和特性分析

Polymers and Polymer Composites Pub Date : 2024-02-23 DOI: 10.1177/09673911241234838

Youssef Hafidi, Hicham El Hatka, Dominik Schmitz, Markus Biel, Najim Ittobane

{"title":"Elaboration and characterization of biodegradable poly(aspartic-co-glutamic acid) hydrogels as soil additives with different crosslinkers","authors":"Youssef Hafidi, Hicham El Hatka, Dominik Schmitz, Markus Biel, Najim Ittobane","doi":"10.1177/09673911241234838","DOIUrl":"https://doi.org/10.1177/09673911241234838","url":null,"abstract":"This work introduces a promising biodegradable copolymer synthesized through the fusion of D,L-aspartic acid (ASP) and L-glutamic acid (GA) utilizing melt polymerization. Employing infrared spectroscopy (IR), nuclear magnetic resonance spectroscopy (1H NMR, 13C NMR), and X-ray diffraction (XRD), the copolymer’s structural characterization highlights its distinctive physicochemical attributes. The synthesis, conducted with a facile and controllable melt polymerization method, yielded a remarkable product yield of up to 81%. The optimization of water absorption properties involved a meticulous exploration of various diamine cross-linking agents—hexamethylene diamine (HMD), lysine (LYS), and a synthesized tartaric acid dihydrazide (TD) derivative. Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance spectroscopy (NMR), and scanning electron microscopy (SEM) were employed to confirm the copolymer’s structure, morphology, and cross-linking efficiency. The findings underscore exceptional water retention capabilities, with a peak swelling ratio of 11.874% achieved at a 10% concentration of hexamethylene diamine. Beyond advancing superabsorbent materials, this study contributes to mitigating environmental concerns associated with non-biodegradable alternatives.","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139951803","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}

引用次数: 0

Towards a green & ecological revolution: Review of natural reinforcing bio-composites and bio-hybrid composites 迈向绿色生态革命：天然强化生物复合材料和生物混合复合材料综述

Polymers and Polymer Composites Pub Date : 2024-01-01 DOI: 10.1177/09673911241226578

Assia Chichane, Radouane Boujmal, A. El Barkany

引用次数: 0

Microhardness measurement optimization in green derived silica/polyester composites using response surface methodology 利用响应面方法优化绿色衍生二氧化硅/聚酯复合材料的显微硬度测量

Polymers and Polymer Composites Pub Date : 2024-01-01 DOI: 10.1177/09673911241228092

M. Vuksanović, I. Mladenović, Stevan Stupar, Aleksandar Marinković, R. J. Heinemann

{"title":"Microhardness measurement optimization in green derived silica/polyester composites using response surface methodology","authors":"M. Vuksanović, I. Mladenović, Stevan Stupar, Aleksandar Marinković, R. J. Heinemann","doi":"10.1177/09673911241228092","DOIUrl":"https://doi.org/10.1177/09673911241228092","url":null,"abstract":"Polymer composites based on unsaturated polyester resin (UPR) and reinforced with particles based on unmodified/modified plant provenance biosilica particles were synthesized and characterized. An unsaturated polyester resin was obtained from waste poly (ethylene terephthalate (PET). Biosilaca particles are made from rice husk biomass. The surface of the produced silica particles was modified using three different silanes: 3-trimethoxysilylpropyl methacrylate (MEMO), trimethoxyvinylsilane (TMEVS), and 3-aminopropyltrimethoxysilane (APTMS). The microhardness test method was used to investigate the mechanical properties of synthesized composite material with variations in dwell times and applied loads. Optimization of composite microhardness value prediction in function of synthesized parameters (type of modification of silica particles) and measurement parameters (applied loads and dwell times) was done using the method of response surface methodology (RSM) regression analysis. The maximal microhardness values (0.459 GPa) were obtained of type modification of silica particles with vinyl with 80% confidence for 120 experimental variables. This method can be used to choose the optimal dwell time and load for comparison of measurements between different composite materials and to enable the choice of the material in terms of optimization of the quality of reinforcement and quality of interphase determined by surface modification.","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139540043","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}

引用次数: 0

Exploration of mechanical and structural properties of bitumen modified with polyethylene glycol and ZnO-nano particles 聚乙二醇和氧化锌纳米颗粒改性沥青的机械和结构特性探索

Polymers and Polymer Composites Pub Date : 2023-12-01 DOI: 10.1177/09673911231217838

Inam Karim, Faisal Iqbal, Niaz Ahmad, Abdul Shakoor, Junaid Naeem

{"title":"Exploration of mechanical and structural properties of bitumen modified with polyethylene glycol and ZnO-nano particles","authors":"Inam Karim, Faisal Iqbal, Niaz Ahmad, Abdul Shakoor, Junaid Naeem","doi":"10.1177/09673911231217838","DOIUrl":"https://doi.org/10.1177/09673911231217838","url":null,"abstract":"Bitumen is a petroleum residue that is extensively used as a pavement material. Rutting at high temperatures is one of the limitations of bitumen in warmer regions. The aim of this study is to improve the performance and increase the temperature susceptibility of neat bitumen. In this study, polyethylene glycol (PEG) and nano ZnO have been used to modify the properties of neat bitumen. Four samples were prepared by incorporating PEG and nano-ZnO with a standard laboratory mixer. Polyethylene glycol with 2%, 4%, 6%, and 8% by weight were mixed initially with neat bitumen along with nano ZnO (1.5% and 3%). To check its applicability in the road construction industry, the blends were subjected to mechanical properties tests such as ductility, flash point, fire point, softening point, and penetration test. It was investigated that decrease in ductility ranges from a maximum of 143 (neat bitumen) to a minimum of 83 (8 wt%). Softening point increased from 54°C to a maximum of 59°C (8 wt%). Flash and fire point increase first and then decrease; the optimum content was found to be 6%. The structural properties of blends were investigated using X-ray diffraction. The spectra show there is a shift of peaks in polymer-modified bitumen (PMB) as compared to neat bitumen, which leads to homogeneous mixing. The shift of peaks is because of an increase in interlayer spacing of neat bitumen and a decrease in Bragg’s angle. FT-IR analysis shows the presence of peaks in the range of 3000–2800 cm−1 which confirms the presence of additives in modified bitumen. SEM analysis was conducted to check the quality of dispersion and to investigate the microstructure. ZnO nano particles affect the mechanical properties of samples. The physical properties of polymer-modified bitumen (PMB), PEG, and nano ZnO blends enhance the stiffness of samples at high temperatures.","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138617516","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}

引用次数: 0

Ballistic characterization of additively manufactured extrusion deposited thermoplastic composite plates 加成型挤压沉积热塑性复合材料板的弹道特性分析

Polymers and Polymer Composites Pub Date : 2023-12-01 DOI: 10.1177/09673911231171043

Dakota M Landrie, H. Tekinalp, A. Hassen, M. Theodore, Uday Vaidya

{"title":"Ballistic characterization of additively manufactured extrusion deposited thermoplastic composite plates","authors":"Dakota M Landrie, H. Tekinalp, A. Hassen, M. Theodore, Uday Vaidya","doi":"10.1177/09673911231171043","DOIUrl":"https://doi.org/10.1177/09673911231171043","url":null,"abstract":"Additive manufacturing (AM) is rapidly emerging in high performance applications such as army ground vehicles, automotive and transportation. However, the response of AM parts/components to extreme loading such as high velocity impacts is less studied. In this work, the performance under ballistic impact of AM panels is evaluated using a medium velocity gas gun, generating projectile velocities up to 400 m/s. The preferential print orientation properties are considered in order to evaluate whether the panels exhibit isotropic or anisotropic behavior under impact. Surface morphology is investigated by milling the beads smooth on samples and comparing the impact on as-printed samples to those that are smoothed. The effect of nickel chromium micron (nichrome) wire embedded in the AM panels (during print) of polycarbonate-carbon fiber (PC-CF) and polycarbonate-glass fiber (PC-GF) are explored. Thermoplastic polyurethane-acrylonitrile butadiene styrene/carbon fiber (TPU-ABS/CF), Acrylonitrile butadiene styrene-carbon-fiber (ABS-CF) AM samples absorbed >50% of the impact energy. The ballistic performance was noted to be in the following order – ABS-CF > TPU-ABS/CF > PC. Scanning electron microscopy (SEM) was conducted to study the interface between the nichrome wire and the polymer-fiber matrix. This work is the first of its kind exploring into the capabilities of AM panels as ballistic materials. This study leads the way for developing AM panels that are easily manufactured and exhibit superior ballistic resistance.","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138610492","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}

引用次数: 0

A review on the current approach for the sustainable production of nanocomposites from agricultural wastes and their application for the adsorption of organophosphate flame retardants 综述当前利用农业废弃物可持续生产纳米复合材料的方法及其在有机磷阻燃剂吸附方面的应用

Polymers and Polymer Composites Pub Date : 2023-11-22 DOI: 10.1177/09673911231181270

Anna E. Ivbanikaro, Jonathan O Okonkwo, E. Rotimi Sadiku, C. Maepa

{"title":"A review on the current approach for the sustainable production of nanocomposites from agricultural wastes and their application for the adsorption of organophosphate flame retardants","authors":"Anna E. Ivbanikaro, Jonathan O Okonkwo, E. Rotimi Sadiku, C. Maepa","doi":"10.1177/09673911231181270","DOIUrl":"https://doi.org/10.1177/09673911231181270","url":null,"abstract":"Water pollution caused by emerging organic pollutants such as the halogenated organophosphate flame retardants, has exacerbated the issue of water scarcity. An eco-friendly technology, e.g., the adsorption technique, requires the use of affordable and safe adsorbents. Agricultural waste materials are promising adsorbents for wastewater remediation due to their relative abundance, biodegradability, non-toxic and cost-effective properties. However, most agricultural wastes are not ideal for adsorption in their raw forms and may require physical or chemical pre-treatments/modification, in order to increase the materials' compatibility and natural adsorption properties. Cellulose is an important constituent of plant residues that can be used as a precursor for the production of greener and sustainable industrial nanomaterials. Therefore, in this review, a discourse on the most recent approach/strategies for the modification of a range of agricultural wastes is presented. The result from their applications showed agricultural wastes has great prospects as adsorbents. The challenges encountered in the synthesis of plant-based adsorbents and the development of 3-D structured nanocomposites from cellulose, to circumvent these difficulties is extensively reviewed. Furthermore, the prospects in the application of cellulose beads/ZnO nanocomposites (CB-ZnO) derived from the maize tassel, for the adsorption of the halogenated organophosphate esters from aqueous matrices are presented in this review","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139249463","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}

引用次数: 0

Exploring urea hard segment morphology and phase separation behavior in flexible polyurethane foam formulations: Water, lithium chloride and isocyanate structure effects 探索柔性聚氨酯泡沫配方中尿素硬段形态和相分离行为:水、氯化锂和异氰酸酯结构的影响

Polymers and Polymer Composites Pub Date : 2023-08-19 DOI: 10.1177/09673911231196380

Hicham El Hatka, Y. Hafidi, N. Ittobane

{"title":"Exploring urea hard segment morphology and phase separation behavior in flexible polyurethane foam formulations: Water, lithium chloride and isocyanate structure effects","authors":"Hicham El Hatka, Y. Hafidi, N. Ittobane","doi":"10.1177/09673911231196380","DOIUrl":"https://doi.org/10.1177/09673911231196380","url":null,"abstract":"Flexible polyurethane foams (FPUFs) are versatile materials used in various applications due to their unique properties. Understanding the phase separation behavior in FPUFs is crucial for tailoring their properties to specific applications. In this study, we investigated FPUFs with varying levels of urea phase connectivity using small-angle X-ray scattering (SAXS), Fourier transform infrared spectroscopy (FTIR), and wide-angle X-ray scattering (WAXS). We explored the effect of water, lithium chloride, and isocyanate structures on the phase separation behavior by employing these methods. An increase in water content in the FPUF formulation resulted in a higher amount of formed urea and larger globular size of urea aggregates. Incorporating LiCl into FPUF formulations demonstrated its ability to prevent hydrogen bond formation, leading to alterations in the urea phase. Moreover, we found that foams prepared with asymmetric diisocyanates showed difficulty in forming the urea phase, while foams prepared with symmetric and aliphatic diisocyanates readily formed the urea phase. Our study sheds light on the morphology of the urea phase, the packaging nature of the hard segment, and the hydrogen bonding behavior of the FPUFs. These findings contribute to a better understanding of phase separation in FPUFs and offer insights into tailoring their properties for specific applications.","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89760094","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}

引用次数: 0

Review on applications of Pullulan in bone tissue engineering: Blends and composites with natural and synthetic polymers 普鲁兰在骨组织工程中的应用综述:与天然聚合物和合成聚合物共混物及复合材料

Polymers and Polymer Composites Pub Date : 2023-08-12 DOI: 10.1177/09673911231192810

M. Manivannan, S. S. Nathan, P. Sasikumar, L. Ramkumar, D. Navaneethan, P. Prabu, F. M. Anjalin, N. Dharamarj, M. Alqahtani, Mohamed Abbas

{"title":"Review on applications of Pullulan in bone tissue engineering: Blends and composites with natural and synthetic polymers","authors":"M. Manivannan, S. S. Nathan, P. Sasikumar, L. Ramkumar, D. Navaneethan, P. Prabu, F. M. Anjalin, N. Dharamarj, M. Alqahtani, Mohamed Abbas","doi":"10.1177/09673911231192810","DOIUrl":"https://doi.org/10.1177/09673911231192810","url":null,"abstract":"Pullulan (PUL) has a diverse range of applicationsdue to its many therapeutic benefits, including biodegradability, biocompatibility, nontoxicity, antimicrobial activity, and adsorption. They are combined with chitosan, polyvinyl pyrrolidone (PVP), polycaprolactone (PCL), heparin, fluorescent polystyrene nanoparticles (PS-NPs), and carboxyl Pullulan to develop properties such as thermal stability, mechanical properties, pH resistance, chemical stability, toughness. The effects of Pullulan content on the properties of the solution, as well as the morphology of the resultant nanofibers, were investigated >80%. The concept of a scaffold can be a useful notion to improve the mechanical behavior of hydrogel-based scaffolds. Compositional analysis by Differential scanning calorimetry (DSC) revealed that Pullulan might enhance the mechanical properties of the nanofibers. This review focuses on the combination and analysis of Pullulan blends and composites of natural and synthetic polymers, as well as their capability in biomedical fields and bone tissue engineering, for example in drug delivery, insulin delivery, food industry, medicinal and biomedical applications, antimicrobial wound dressings, cancer cell targeting, anticancer vaccine improvement, new biopolymer development, food product development and sensing. The electro spinning procedure and the materials employed in it will be covered in this review. The use of Pullulan electrospun nanofibers structures in tissue engineering will also be covered in this paper. The benefits, restrictions, and future opinions were studied. This is because of Pullulan-based polymers have a variety of properties.","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91509069","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}

引用次数: 1

Investigating the influence of sugarcane bagasse ash volume variation in glass fiber reinforced with epoxy resin matrix composite material 研究蔗渣灰分体积变化对环氧树脂基增强玻璃纤维复合材料性能的影响

Polymers and Polymer Composites Pub Date : 2023-08-12 DOI: 10.1177/09673911231196037

Belay Taye Wondmagegnehu

引用次数: 0

Study on the adsorption mechanism of the sodium lignosulphonate on the surface of the selected plastics as a potential solution for plastics waste management 研究木质素磺酸钠在塑料表面的吸附机理，作为塑料废物处理的潜在解决方案

Polymers and Polymer Composites Pub Date : 2023-07-15 DOI: 10.1177/09673911231189645

Fateme Shariatikia, S. Ostad Movahed, Nadia Ostad Movahed

{"title":"Study on the adsorption mechanism of the sodium lignosulphonate on the surface of the selected plastics as a potential solution for plastics waste management","authors":"Fateme Shariatikia, S. Ostad Movahed, Nadia Ostad Movahed","doi":"10.1177/09673911231189645","DOIUrl":"https://doi.org/10.1177/09673911231189645","url":null,"abstract":"Separating different components of a plastic mixture is crucial in its recycling. Among the different separation techniques, flotation was selected as a cheap, non-toxic, and efficient process. Basis of the technique refers to the selective adsorption of a depressant on the plastics surface which cause the alteration in the surface energy of the plastic. Adsorption of the lignosulfonic acid sodium salt (SL) on the surface of the selected available plastics in the waste stream was studied. Plastics used in this study were Polyvinylchloride (PVC), acrylonitrile-butadiene-styrene polymer (ABS), polystyrene (PS), polypropylene (PP), polyoxymethylene (POM), and polycarbonate PC. It results showed that SL adsorbed on the surface of the selected plastics considerably. It was evidenced by the measured equilibrium adsorption capacities ( [Formula: see text] ) of the SL and also, the SEM and AFM images. SL adsorbed on the plastic surface in the sequence of [Formula: see text]. Also, the parameters of the Freundlich and Langmuir adsorption models were derived. Experimental data fit with the mentioned models appropriately. However, for the most studied plastics, the Freundlich model was more suitable. As important conclusion, PP separated from plastics mix using the flotation separation technique with the aid of SL as a depressant.","PeriodicalId":20417,"journal":{"name":"Polymers and Polymer Composites","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89479361","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}

引用次数: 0