Iranian Polymer Journal最新文献_第2页

Effect of amorphous and crystalline zirconia on the structural, optical, antifungal and thermal behavior of polymethylmethacrylate/zirconium dioxide nanocomposites in complete denture prosthesis 非晶氧化锆和结晶氧化锆对聚甲基丙烯酸甲酯/二氧化锆纳米复合材料全口义齿结构、光学、抗真菌和热性能的影响

IF 2.8 3区化学

Iranian Polymer Journal Pub Date : 2025-02-13 DOI: 10.1007/s13726-025-01458-2

Nafis Ahmad, Zeba Jafri, Mohd Shoeb Khan, S. Ishraque Ahmad, Saiema Ahmedi, Nikhat Manzoor, Zishan Hussain Khan

{"title":"Effect of amorphous and crystalline zirconia on the structural, optical, antifungal and thermal behavior of polymethylmethacrylate/zirconium dioxide nanocomposites in complete denture prosthesis","authors":"Nafis Ahmad, Zeba Jafri, Mohd Shoeb Khan, S. Ishraque Ahmad, Saiema Ahmedi, Nikhat Manzoor, Zishan Hussain Khan","doi":"10.1007/s13726-025-01458-2","DOIUrl":"10.1007/s13726-025-01458-2","url":null,"abstract":"<div><p>Polymer-based nanocomposites have gained significant attention nowadays and they have potential to replace the existing materials in different fields including denture stomatitis. Polymethylmethacrylate (PMMA) is one of the promising polymers to meet the demands of current materials research. In the present study, the nanocomposites of PMMA with zirconium dioxide (ZrO<sub>2</sub>) nanoparticles were synthesized in amorphous (PAZ) and crystalline (PCZ) forms using a facile chemical approach at 2, 3, 4 and 5 weight percentages. The structural, thermal and optical properties of nanocomposites were studied using AT-FTIR, XRD, SEM/EDX, TGA/DTA, and UV–Vis spectroscopy techniques. PAZ and PCZ both were thermally stable but PAZ was found more stable than PCZ. There was no observation of significant peak on ZrO<sub>2</sub> NPs, among all nanocomposite samples, which indicates complete dispersion of NPs within the solution confirming the formation of PAZ and PCZ nanocomposites. PCZ samples have played a significant role in reduction of colony forming units (CFUs) in 5% concentration. All <i>Candida</i> species gave MIC of 10 µg/mL using fluconazole (control). The MIC of both forms PCZ/PAZ samples was tested at 2, 3, 4 and 5 percentage (w/w) concentrations. The obtained MIC values were ranged between 550 and 995 µg/mL. The PAZ samples have shown high efficacy against all <i>Candida</i> species with MIC of 550, 580, 585 and 590 µg/mL<i>.</i> The PCZ sample of 2% exhibited high MIC values ranging from 990 to 995 µg/mL. However, PCZ sample of 5% gave MIC value of 670–690 µg/mL against all <i>Candida</i> species<i>.</i></p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 10","pages":"1601 - 1618"},"PeriodicalIF":2.8,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental analysis of gas-assisted co-injection molding for complex polymer multilayer circular tubular components 复杂聚合物多层圆管件气体辅助共注射成型实验分析

IF 2.8 3区化学

Iranian Polymer Journal Pub Date : 2025-02-12 DOI: 10.1007/s13726-025-01461-7

Shuhui Huang, Zhuyu Zhao, Tao Zhang, Jun Lin, Haikun Du, Wei Zhang, Bin Xiao

{"title":"Experimental analysis of gas-assisted co-injection molding for complex polymer multilayer circular tubular components","authors":"Shuhui Huang, Zhuyu Zhao, Tao Zhang, Jun Lin, Haikun Du, Wei Zhang, Bin Xiao","doi":"10.1007/s13726-025-01461-7","DOIUrl":"10.1007/s13726-025-01461-7","url":null,"abstract":"<div><p>Based on the self-built gas-assisted co-injection experimental platform, the gas-assisted co-injection molding experiments were conducted on the cylindrical pipe fittings with cavity sectional diameters of 20 and 30 mm. A UDF model was constructed using CFD software for numerical simulation. The study investigated the influence of melt injection sequence, melt filling methods, and cavity tube diameters on the rheological behavior of inner layer melt penetrating the outer layer melt and the penetration behavior of gas through the inner layer melts. The evolution mechanism was analyzed in conjunction with the flow field effects. The findings revealed that when a higher viscosity melt penetrates a lower viscosity melt, i.e., the injection sequence of PP-HDPE, HDPE tends to squeeze more PP towards the mold wall; and the N<sub>2</sub> with the same injection pressure was subjected to increased resistance when the melt with higher viscosity penetrates, intensifying the interface instability between the inner and outer layer melt. The variability and fluctuation in the total residual wall thickness and the residual wall thickness of the outer melt in GACIM samples increased. When the melt-filling method and injection sequence were the same, an increase in the cavity tube diameter decreased the instability of the gas–melt and inner-outer layer melt interfaces. These insights provide technical guidance and references for the sectional design and process parameter adjustment of gas-assisted co-injection molding products.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 10","pages":"1589 - 1599"},"PeriodicalIF":2.8,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Amine-functionalized radiation-grafted nylon-6 fibers: synthesis and adsorption performance for diclofenac sodium 胺功能化辐射接枝尼龙-6纤维的合成及其对双氯芬酸钠的吸附性能

IF 2.8 3区化学

Iranian Polymer Journal Pub Date : 2025-02-07 DOI: 10.1007/s13726-025-01453-7

Sharifah Mona Abd Aziz Abdullah, Luqman Chuah Abdullah, Siti Nurul Ain Md Jamil, Teo Ming Ting, Thomas Shean Yaw Choong

{"title":"Amine-functionalized radiation-grafted nylon-6 fibers: synthesis and adsorption performance for diclofenac sodium","authors":"Sharifah Mona Abd Aziz Abdullah, Luqman Chuah Abdullah, Siti Nurul Ain Md Jamil, Teo Ming Ting, Thomas Shean Yaw Choong","doi":"10.1007/s13726-025-01453-7","DOIUrl":"10.1007/s13726-025-01453-7","url":null,"abstract":"<p>The removal of pharmaceutical contaminants from water sources remains a critical challenge due to the limited efficiency and high cost of the current technologies. This study presents the development of innovative fibrous adsorbents synthesized through radiation-induced graft-copolymerization (RIGC) of glycidyl methacrylate (GMA) onto nylon-6 (Ny6) fibers. These GMA-grafted fibers were subsequently functionalized with 1,3-diaminopropane (DAP) and diethylenetriamine (DETA), resulting in the formation of DAP(GMA-<i>g</i>-Ny6) and DETA(GMA-<i>g</i>-Ny6) adsorbents. By optimizing the graft yield (%), amine functionality, and reaction time, the amine densities of 3.39 and 2.66 mmol/g were achieved for DAP(GMA-<i>g</i>-Ny6) and DETA(GMA-<i>g</i>-Ny6), respectively. The analytical techniques, including FTIR, XPS, SEM, BET, TGA, and XRD confirmed successful amine incorporation and characterized the structural changes. The preliminary adsorption experimental results demonstrated that the DAP and DETA functionalized fibers exhibited high adsorption capacities, with DAP(GMA-<i>g</i>-Ny6) achieving a maximum diclofenac sodium removal efficiency of 99%, compared to 90% for DETA(GMA-<i>g</i>-Ny6). The superior performance of DAP(GMA-<i>g</i>-Ny6) can be attributed to its high amine density (3.00 mmol/g), which provides extensive amine group coverage on the surface of the grafted fiber, thereby facilitating strong hydrogen bonding and electrostatic interactions with diclofenac sodium molecules. These findings suggest that the amine-functionalized nylon-6 fibers synthesized through RIGC offer a promising and effective solution for the removal of diclofenac sodium from water, highlighting their potential application in environmental remediation.</p>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 9","pages":"1435 - 1451"},"PeriodicalIF":2.8,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144880802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Developing antimicrobial, biodegradable, sustainable, and eco-friendly biofilms: harnessing tea waste for a greener future 开发抗菌、可生物降解、可持续和环保的生物膜：利用茶废物创造更绿色的未来

IF 2.8 3区化学

Iranian Polymer Journal Pub Date : 2025-02-07 DOI: 10.1007/s13726-025-01451-9

Jyoteshna Kharb, Ritu Saharan

{"title":"Developing antimicrobial, biodegradable, sustainable, and eco-friendly biofilms: harnessing tea waste for a greener future","authors":"Jyoteshna Kharb, Ritu Saharan","doi":"10.1007/s13726-025-01451-9","DOIUrl":"10.1007/s13726-025-01451-9","url":null,"abstract":"<div><p>In the present context, the increasing environmental issues, such as pollution, exhaustion of fossil resources, generation of non-biodegradable wastes and threatening effects on animals and humans, etc., associated with usage of plastics have led to the emergence of eco-friendly plastics in the field of research. Development of bioplastics has attracted immense interest worldwide. In view of the same, the present research work focuses on sustainable synthesis of eco-friendly biofilms from renewable and easily available tea waste. Various biofilms comprising different amount of tea waste (0, 2, 4, 6, 8, and 10 g) along with corn starch, plasticizer, and citric acid were synthesized and compared based on their functional, morphological, and thermal behavior. The synthesized biofilms were examined using Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, and X-ray diffraction analysis. The results revealed that the biofilm consists of tea waste powder and corn starch in 3:2 proportion (sample BF-4) has lesser cracks and grooves and contains more amorphous character compared to the other biofilms. The produced biofilms show biodegradability and possess antimicrobial properties against microbes such as <i>Escherichia coli</i>, <i>Staphylococcus aureus,</i> and <i>Aspergillus flavus</i>. The development of biofilms from tea waste presents a promising avenue for sustainable packaging materials. Harnessing naturally abundant resources like tea waste not only reduces waste but also offers a range of benefits, such as being low-cost, environmentally friendly, energy-efficient, and biodegradable. Moreover, the antimicrobial properties inherent in tea waste can contribute to the preservation of packaged goods, enhancing their shelf life.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 10","pages":"1577 - 1588"},"PeriodicalIF":2.8,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of polyvinyl chloride composites with enhanced mechanical properties using modified ceramic particles 改性陶瓷颗粒增强聚氯乙烯复合材料的研制

IF 2.8 3区化学

Iranian Polymer Journal Pub Date : 2025-02-05 DOI: 10.1007/s13726-025-01454-6

Adewumi Ojo Ademola, Isiaka Oluwole Oladele, Daramola Ojo Oluyemi, Samuel Ranti Oke, Ilesanmi Akinbamiyorin, Annuoluwapo Samuel Taiwo

{"title":"Development of polyvinyl chloride composites with enhanced mechanical properties using modified ceramic particles","authors":"Adewumi Ojo Ademola, Isiaka Oluwole Oladele, Daramola Ojo Oluyemi, Samuel Ranti Oke, Ilesanmi Akinbamiyorin, Annuoluwapo Samuel Taiwo","doi":"10.1007/s13726-025-01454-6","DOIUrl":"10.1007/s13726-025-01454-6","url":null,"abstract":"<div><p>The integration of ceramic particles into polyvinyl chloride (PVC) composites offers a promising approach and has garnered significant attention due to their potential for enhancing mechanical properties. This work investigated the development and characterization of PVC composites enhanced with modified ceramic particles. Ceramic particulates, clays, and other mineral rock materials (non-plastics) with activators were processed and incorporated into the PVC matrix at varying weight percentages (5–30 wt%) and particle sizes (40–80 µm). The ceramic–PVC mixtures were synthesized using hot compression molding under specific conditions of 75 MPa pressure and 160 °C temperature. Mechanical properties’ testing was conducted using ASTM D3039 standards, covering flexural, tensile, hardness, and impact tests for comprehensive characterization<b>.</b> Microstructural analysis was performed using scanning electron microscopy (SEM). Results indicated that ceramic reinforcement significantly enhanced the mechanical properties of PVC composites, with notable improvements in flexural strength, tensile strength, hardness, and impact resistance. Moreover, the impact of particle size was crucial, as microstructural analysis revealed improved interfacial bonding between ceramic particles and PVC matrix, particularly with finer particle sizes (40 µm), suggesting better stress transfer. The findings demonstrated that including modified ceramic particles can substantially improve the performance of PVC composites, making them suitable as high-strength construction tiles and impact-resistant flooring.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 9","pages":"1425 - 1434"},"PeriodicalIF":2.8,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13726-025-01454-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144880783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polydopamine-assisted zirconium-based metal–organic frameworks@enzyme composite modification of polyethylene terephthalate fibers to form anti-adhesive surfaces 聚多巴胺辅助锆基金属-有机frameworks@enzyme复合改性聚对苯二甲酸乙二醇酯纤维形成抗粘表面

IF 2.8 3区化学

Iranian Polymer Journal Pub Date : 2025-02-05 DOI: 10.1007/s13726-025-01456-4

Jinlong Gao, Qianru Dong, Hong Li, Xiaofeng Liu, Na Gu, Haixia Wu

{"title":"Polydopamine-assisted zirconium-based metal–organic frameworks@enzyme composite modification of polyethylene terephthalate fibers to form anti-adhesive surfaces","authors":"Jinlong Gao, Qianru Dong, Hong Li, Xiaofeng Liu, Na Gu, Haixia Wu","doi":"10.1007/s13726-025-01456-4","DOIUrl":"10.1007/s13726-025-01456-4","url":null,"abstract":"<div><p>The process of bacterial adhesion and subsequent biofilm formation is a global challenge in terms of health and economy. In this study, we employed a simple impregnation method to achieve antibacterial adhesion on polyethylene terephthalate (PET) fabric. The metal–organic frameworks (MOF)@enzyme composites demonstrated firmly attached adhesion to the PET fabric surface due to the exceptional adhesion properties of dopamine (DA). The surface morphology and microstructure of the modified PET fiber were analyzed using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffractometry (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR) technologies, and a water contact angle test. The results showed that MOF@enzyme nanoparticles were deposited on the fiber surface, resulting in significant changes in the surface morphology of the modified fibers. The surface hydrophilicity was also increased with the reduction of the water contact angle from 112.5° to 36.2°. The PET fabric coated with the MOF enzyme complex exhibits significant antibacterial adhesion capabilities against <i>Staphylococcus aureus</i> (<i>S. aureus</i>) and <i>Escherichia coli</i> (<i>E. coli</i>). In addition, the modified PET fabric demonstrated excellent storage stability, maintaining an anti-adhesion rate of over 70% even after 30 days of storage. Moreover, the rate of erythrocyte hemolysis is less than 2.5%, indicating that the fabric exhibits excellent blood compatibility and biocompatibility. This study provides a novel approach for the biomedical application of PET fabrics.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 10","pages":"1563 - 1575"},"PeriodicalIF":2.8,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tertiary amine-modified graphene oxide for reinforcing anhydride-cured cardanol-based epoxy resin 叔胺改性氧化石墨烯增强酸酐固化腰果酚基环氧树脂

IF 2.8 3区化学

Iranian Polymer Journal Pub Date : 2025-02-04 DOI: 10.1007/s13726-024-01445-z

Xin Zhang, Lingxiao Jia, Wenjing Wang, Haichao Zhao

{"title":"Tertiary amine-modified graphene oxide for reinforcing anhydride-cured cardanol-based epoxy resin","authors":"Xin Zhang, Lingxiao Jia, Wenjing Wang, Haichao Zhao","doi":"10.1007/s13726-024-01445-z","DOIUrl":"10.1007/s13726-024-01445-z","url":null,"abstract":"<div><p>Graphene oxide (GO) has emerged as ideal reinforced nanofillers in epoxy-based composites, but suffering from poor dispersion because of its high hydrophilicity, and poor compatibility with polymeric matrix which hinders its further application. In this study, a novel tertiary amine-containing compound (C-DEA) was synthesized by the reaction of diethanolamine with C12-C14 alkyl glycidyl ether, then C-DEA was used to modify GO by ionic interaction, thus GO-CDEA was obtained. Moreover, the effect of GO-CDEA content on mechanical and thermal properties of cashew phenol epoxy composite were investigated. Compared to pure epoxy resin (EP), the cashew nut phenol-based nanocomposites (0.2% (by weight) GO-CDEA) perform exceptionally excellent mechanical properties: the rupture strength is 13.76 MPa (73% higher than EP), the Young's modulus is 1049.38 MPa (201% higher than EP), and the elongation-at-break is 138.14% (145% higher than EP). The improved mechanical properties are attributed to the synergistic effect of C-DEA and well-dispersed GO nanosheets, which not only increased the crosslinking density, but also impeded the extension of cracks. Additionally, this novel GO-CDEA-reinforced bio-based renewable cashew phenol epoxy proves to be an ideal candidate for toughening epoxy-based thermosetting materials, showcasing the potential application of bio-based epoxy composite materials.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 9","pages":"1415 - 1424"},"PeriodicalIF":2.8,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144880780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Graphene nanoplatelets inclusion effects on mechanical properties of hybrid carbon/glass composites 石墨烯纳米片夹杂物对碳/玻璃复合材料力学性能的影响

IF 2.8 3区化学

Iranian Polymer Journal Pub Date : 2025-02-02 DOI: 10.1007/s13726-025-01457-3

Ahmet Erkliğ, Mehmet Bulut, Bashar Rida Younus Al-Ogaidi

{"title":"Graphene nanoplatelets inclusion effects on mechanical properties of hybrid carbon/glass composites","authors":"Ahmet Erkliğ, Mehmet Bulut, Bashar Rida Younus Al-Ogaidi","doi":"10.1007/s13726-025-01457-3","DOIUrl":"10.1007/s13726-025-01457-3","url":null,"abstract":"<div><p>The incorporation of nanoparticles into hybrid carbon/glass composites significantly enhances their mechanical properties, making them suitable for various engineering applications. The primary aim of this study was to examine the effects of graphene nanoparticles (GNPs) on the mechanical and Charpy impact characteristics of carbon fiber/epoxy, glass fiber/epoxy, and their hybrid composite laminates across various laminate configurations. GNPs were uniformly dispersed in the epoxy matrix at different weight fractions of 0.1%, 0.25% and 0.5% (by weight). Experimental assessments encompassing flexural, tensile, and Charpy impact evaluations were carried out both with/without the incorporation of GNPs as reinforcing agents in the fabricated specimens. This research indicated that even a small addition of GNPs could lead to substantial improvements in tensile strength, flexural strength, and impact resistance due to better interfacial bonding between the fibers and the epoxy matrix. Upon introducing GNPs at a loading level of 0.1% (by weight), the experimental findings demonstrated a notable enhancement in the mechanical and impact properties of the hybrid composite laminates as a result of integrating GNPs into the epoxy matrix. This increase in strength can be attributed to the development of a strong interfacial bond among the fibers, epoxy, and GNPs leading to better load transferring from the matrix to the fibers.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 10","pages":"1545 - 1562"},"PeriodicalIF":2.8,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel DOPO-AS/M(OH)(OCH3) organic/inorganic nanohybrid for enhancing the flame retardancy and mechanical properties of epoxy 一种新型DOPO-AS/M(OH)（OCH3）有机/无机纳米杂化材料，用于增强环氧树脂的阻燃性和力学性能

IF 2.8 3区化学

Iranian Polymer Journal Pub Date : 2025-01-28 DOI: 10.1007/s13726-025-01455-5

Qiancheng Duan, Xiang Dong, Zhiyu Sun, Guowei Dai, De-long Li, Le Xie, Song Liu

{"title":"A novel DOPO-AS/M(OH)(OCH3) organic/inorganic nanohybrid for enhancing the flame retardancy and mechanical properties of epoxy","authors":"Qiancheng Duan, Xiang Dong, Zhiyu Sun, Guowei Dai, De-long Li, Le Xie, Song Liu","doi":"10.1007/s13726-025-01455-5","DOIUrl":"10.1007/s13726-025-01455-5","url":null,"abstract":"<div><p>A novel multifunctional flame-retardant DOPO-AS/M(OH)(OCH<sub>3</sub>) (M = Co, Ni) was synthesized and incorporated into epoxy resin (EP) to prepare EP composites with enhanced flame retardancy and mechanical properties. Specifically, the DOPO-AS was synthesized using 3-aminopropyltriethoxysilane (APTES), salicylaldehyde (Salal), and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO). The 2D nanosheet M(OH)(OCH<sub>3</sub>) was surface modified with DOPO-AS, thereby synthesizing the organic/inorganic nanohybrid DOPO-AS/M. The results showed that the addition of only 5% (by wt) DOPO-AS/M enabled EP to achieve the UL-94 of V-1 rating, with the limiting oxygen index (LOI) increasing from 28.7% to 31.0%. The thermogravimetric analysis (TGA) results demonstrated that the EP/DOPO-AS/M composite exhibited a significant enhancement in thermal stability compared to pure EP. Meanwhile, EP/DOPO-AS/M 5% composite showed significant reduction of 48.1%, 14.7%, 30.9%, and 22.7% in the peak heat release rate (pHRR), total heat release (THR), smoke production rate (SPR), and total smoke production (TSP), respectively. In addition, the tensile strength and elongation-at-break of the EP composite with 1% (by wt) DOPO-AS/M were increased by 13.5% and 3.2%, compared with pure EP. This work provides a novel and facile strategy for the simultaneous enhancement of flame retardancy and mechanical properties in EP composites, showing promising potential for practical applications.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 9","pages":"1453 - 1467"},"PeriodicalIF":2.8,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144880872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modification of compressive characteristics in 3D printed polyolefin elastomers/polypropylene blend structures through polypropylene content and infill density adjustment 通过调整聚丙烯含量和填充密度改变3D打印聚烯烃弹性体/聚丙烯共混结构的压缩特性

IF 2.8 3区化学

Iranian Polymer Journal Pub Date : 2025-01-22 DOI: 10.1007/s13726-024-01439-x

Yong Liu, Jianwei Wei, Qi Chen, Yunzhong Dai

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