Iranian Polymer Journal最新文献

{"title":"Well-defined amphiphilic poly(ε-caprolactone)-b-poly(N-isopropylacrylamide) and thermosensitive micelles formulation","authors":"Rodolfo M. de Moraes,&nbsp;Layde T. de Carvalho,&nbsp;Ana Julia R. M. Teixeira,&nbsp;Simone F. Medeiros,&nbsp;Amilton M. dos Santos","doi":"10.1007/s13726-023-01230-4","DOIUrl":"10.1007/s13726-023-01230-4","url":null,"abstract":"<div><p>Polymeric nanoparticles, based on amphiphilic copolymers, have been extensively evaluated as a potential material for drug delivery systems (DDS), because they present a clear capability of forming micelles under an aqueous medium. Besides the amphiphilic properties, the thermosensitivity of polymers under aqueous media has attracted great attention for DDS. In this work, a well-defined amphiphilic poly(ε-caprolactone)-<i>b</i>-poly(<i>N</i>-isopropylacrylamide) (PCL-<i>b</i>-PNIPAAm) was used to prepare thermosensitive micelles as potential candidates for applications in drug delivery systems. First, hydroxyl-terminated PCL (PCL-OH) was synthesized by ROP, and then, the PCL-OH was converted to PCL-Br through reaction with 2-bromopropionyl bromide, followed by a chemical modification to ethyl xanthate in PCL-end chains through substitution reaction. The PCL-<i>b</i>-PNIPAAm block copolymers were obtained by RAFT polymerization of <i>N</i>-isopropylacrylamide (NIPAAm) monomer from the PCL-EX macroagent. Different size chains of PCL and PNIPAAm were evaluated as also their influence on the capacity of micelles formation. The polymers and their synthesis efficacy were characterized by chemical composition, molecular weight, and thermal and crystallinity properties. The CMC of the copolymers and the LCST of the micelles increased with the increase in the segmental length of PNIPAAm and decreased with the increase in PCL segmental length. The DLS demonstrated an increase in the micelles size with the increase of the proportion of both hydrophobic and hydrophilic segments. Finally, the morphology observed by AFM demonstrated that the micelles are of spherical shape.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"32 12","pages":"1627 - 1641"},"PeriodicalIF":3.1,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13726-023-01230-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50450579","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}

{"title":"Structural evolution of PPR, PP/PE, and maleic anhydride-grafted PP/PE blends during uniaxial stretching and cooling studied by in situ SAXS and WAXD","authors":"Wenjun Shao,&nbsp;Lizhi Liu,&nbsp;Ying Wang,&nbsp;Ye Cui,&nbsp;Yuanxia Wang,&nbsp;Lixin Song,&nbsp;Ying Shi","doi":"10.1007/s13726-023-01226-0","DOIUrl":"10.1007/s13726-023-01226-0","url":null,"abstract":"<div><p>In situ SAXS/WAXD experiments were conducted to investigate the structural evolution and crystal growth of maleic anhydride (MAH)-grafted PP/PE and PPR blends (represented by PPR/EP55M), as well as their un-grafted blends (represented by PPR/EP55) during uniaxial stretching and cooling. Special attention was paid to the effect of MAH on pore formation under different stretching rates in the plastic deformation mechanism. The results show that the PPR/EP55 blend undergoes plastic deformation and forms micro-pores in the yield zone of PE. When stretched further in the MD direction, a long period increased through recrystallization and PE delayed the formation of holes caused by PP chain fracture. However, due to the incompatibility between PP and PE, the interfacial adhesion was poor and toughness of PPR/EP55 blends was significantly reduced compared to PP. The addition of MAH could increase the compatibility between PP and PE in the PPR/EP55M blends, allowing PE to enter the PP enrichment zone and promoted the conversion of PP-β to more stable α crystals with polymers that had stable properties. This improved the tensile strength of PE molecules and further delayed the fracture of PP molecular chains without affecting their toughness. We improved the research content on the impact of MAH on the mechanical properties of the PP/PE blends which has important guidance values for producing the protective pipes necessary for high-performance gas production drill pipes.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"32 12","pages":"1595 - 1606"},"PeriodicalIF":3.1,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50522109","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}

{"title":"Properties and biodegradation modeling of abiotically treated modified-cobalt stearate filled polypropylene films","authors":"Sunil Sable,&nbsp;Sanjeev Ahuja","doi":"10.1007/s13726-023-01228-y","DOIUrl":"10.1007/s13726-023-01228-y","url":null,"abstract":"<div><p>The present work studies the effects of abiotic pretreatment on the properties and biodegradability of the modified cobalt stearate pro-degradant filled polypropylene films, and on the eco-toxicity of their biodegraded products. Before abiotic pretreatment, their processability was confirmed by rheological studies. After abiotic pretreatment, FTIR revealed their carbonyl index increased on increasing the pro-degradant loading. Their GPC results showed significant decrease in molecular weight, thus indicating chain scission and intermediate formation. Their thermal stability also reduced as demonstrated by TGA. Their DSC and XRD analyses showed decreased crystallinity thereby indicating increased biodegradability. Their biodegradation was measured following ASTM D 5338, which showed a significant increase with abiotic pretreatment and the same was substantiated by GPC. The biodegradation kinetics followed Komilis model which showed that the degradation rate reached a maximum of 0.407–0.730% per day at 15–25th day. Readily hydrolysable carbon and its hydrolysis rate constant substantially enhanced with modified pro-degradant content. High readily hydrolyzable carbon rate constant caused the occurrence of a prominent growth phase. SEM also confirmed that the surface morphology of each film became increasingly rougher subsequent to both abiotic and biotic treatments, and with increasing pro-degradant loading. The eco-toxicity tests confirmed the nontoxicity of biodegraded products. The work thus illustrated that the films can have useful packaging applications.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"32 12","pages":"1607 - 1626"},"PeriodicalIF":3.1,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50522010","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}

{"title":"Alkali-treated date palm fiber-reinforced unsaturated polyester composites: thermo-mechanical performances and structural applications","authors":"Samira Maou,&nbsp;Yazid Meftah,&nbsp;Izzeddine Bouchamia,&nbsp;Aimen Benyaghla","doi":"10.1007/s13726-023-01224-2","DOIUrl":"10.1007/s13726-023-01224-2","url":null,"abstract":"<div><p>Using short untreated and alkali-treated date palm fibers (UDPF and TDPF) of 5–10 mm with fractions of 10, 20, and 30% (by weight), the unsaturated polyester (UP) filled with date palm fibers (DPFs) was produced for eco-friendly technology. The composite reinforced with 10% (by weight) TDPF achieved the highest tensile and flexural strengths (28.52 and 76.36 MPa, respectively), whereas the composite produced with 30% (by weight) TDPF achieved the maximum tensile, flexural moduli, and Izod impact strength (770.77, 4200.23 MPa, and 8.48 kJ/m², respectively). Furthermore, scanning electron microscopy (SEM) micrographs demonstrated the improved adhesion between the UP and TDPF. In addition, the first thermal degradation (T_onset) of UP/10TDPF, UP/20TDPF, and UP/30TDPF composites, increased at their respective 4.65, 21.47, and 16.29 °C after alkali treatment. A dynamic mechanical analysis (DMA) revealed respective maximum storage modulus (E′) and loss modulus (E″) values of 2542 and 243.29 MPa for the UP/10TDPF composite. In addition, the introduction of 10% (by weight) DPF decreased the <i>T</i>_g value, suggesting that the addition of fiber only had a plasticizing effect. However, for the UP/30DPF composites, the <i>T</i>_g values exhibited a positive shift, emphasizing the effectiveness of the fibers as a reinforcing agent. Moreover, the differential scanning calorimetry (DSC) results revealed a significant increase in glass transition temperature (<i>T</i>_g) due to the effect of alkali treatment of DPFs, while water absorption for a UP/10TDPF composite had the lowest weight variation due to the decrease in fiber loading and alkali treatment. These composites fabricated using TDPF as renewable natural resources with enhanced performance could be beneficial in a wide range of industrial applications.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"32 12","pages":"1581 - 1593"},"PeriodicalIF":3.1,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50473122","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}

{"title":"Matcha-modified clay polyurethane coating: improving thermal, mechanical, antimicrobial, and anticorrosion performance","authors":"Milad Sheydaei,&nbsp;Milad Edraki,&nbsp;Faezeh Safyari-Jafar Abad","doi":"10.1007/s13726-023-01225-1","DOIUrl":"10.1007/s13726-023-01225-1","url":null,"abstract":"<div><p>In this study, matcha was introduced into the structure of sodium montmorillonite (Na⁺-MMT), then these new nanoparticles (M-MMT) were added to the polyurethane (PU) and nanocomposites were prepared. The results of the M-MMT investigation by Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) confirmed the presence of matcha in the structure. The results of electrochemical impedance spectroscopy (EIS) and salt spray tests showed that the presence of M-MMT in the matrix improves corrosion resistance. The EIS results showed that nanocomposite containing 3% (by weight) of G-MMT has 6.68 × 10¹¹ Ω.cm² resistance after 70 days of immersion in the electrolyte solution, while this value was 1.62 × 10¹¹ Ω.cm² for the neat PU. Also, the effect of M-MMT on the thermal resistance was up to 52 °C. Moreover, the results obtained from tensile tests showed that the strength and elastic modulus increased up to 19 and 180 MPa, respectively. This improvement in mechanical properties is due to the fact that the polymer chains are able to penetrate into the MMT galleries and also the distribution of nanoparticles in the matrix is uniform, which makes the nanocomposite easily eliminate stress without destruction. In addition, the presence of matcha in the structure created antimicrobial properties. Matcha contains phenolic compounds that have the ability to suppress by membrane perturbation, reduction of host ligands adhesion, and neutralizing bacterial toxins. Hence, M-MMT showed inhibitory and killing effects against <i>Streptococcus pyogenes</i> (Gram-positive bacteria) and<i> Klebsiella pneumonia</i> (Gram-negative bacteria).</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"32 12","pages":"1643 - 1654"},"PeriodicalIF":3.1,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13726-023-01225-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50466589","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}

{"title":"Synthesis of cinacalcet containing acrylamide hydrogels by photopolymerization and studying their sensing properties","authors":"Erdinc Doganci,&nbsp;Mustafa Uygun,&nbsp;Mehmet Atilla Tasdelen","doi":"10.1007/s13726-023-01200-w","DOIUrl":"10.1007/s13726-023-01200-w","url":null,"abstract":"<div><p>Novel cinacalcet containing acrylamide hydrogel (CIN-gel) was fabricated by free radical photopolymerization of acrylamide/<i>N,N’</i>-methylenebisacrylamide with cinacalcet hydrochloride as a photoinitiator. This hydrogel prepared by a one-pot photo-induced polymerization system was characterized with respect to its morphological and fluorescence features by means of SEM, UV–vis, and fluorescence spectroscopy. The CIN-gel displayed dual fluorescence emission when excited at 250 nm in water:acetonitrile (1:1, w/w) solution system owing to twisted intramolecular charge transfer between naphthalene and dimethylamino units in the cinacalcet moiety. The prepared fluorophore containing CIN-gel was employed as a fluorescent probe towards certain specific heavy metal ions (HMIs) such as Pb²⁺, Sn²⁺, Zn²⁺ and nitroaromatic compounds (NACs) such as 2-nitrotoluene, 2,4-dinitrophenol, 1,2-dinitrobenzene, 2,4,6-trinitrotoluene, 2,4,6-trinitrophenol, 4-nitrophenol, and 2,4-dinitrophenol. The use of cinacalcet hydrochloride as a photoinitiator and analyte for measuring HMIs and NACs during the production of the hydrogel is being reported for the first time. Fluorescence intensity of CIN-gel was gradually reduced upon the addition of NACs and HMIs. For all compounds, the highest quenching efficiencies were attained in the presence of Zn²⁺ (35.93%), 2,4,6-trinitrotoluene (95.67%), and 2,4-dinitrophenol (94.96%). Because of its simplicity and sensitivity, the proposed CIN-gel can be considered as potential chemical probe to detect the HMIs ions and NACs compounds.</p><h3>Graphical abstract</h3>\u0000 <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"32 11","pages":"1359 - 1366"},"PeriodicalIF":3.1,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41088208","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}

{"title":"A novel pectin/cerium (IV) silicomolybdate-based nanocomposite ion exchanger: preparation, characterization, and applications","authors":"Sugandhi Gupta,&nbsp;Esmat Laiq,&nbsp;Uzma Meraj","doi":"10.1007/s13726-023-01223-3","DOIUrl":"10.1007/s13726-023-01223-3","url":null,"abstract":"<div><p>Hybrid ion exchangers with high ion exchange capacity (IEC), good stability, and good selectivity for heavy metals formed through a polymer material into an inorganic ion exchanger have always attracted the attention of researchers. In this work, a novel nanocomposite ion exchanger made of pectin and cerium (IV) silicomolybdate (CSM) was synthesized by precipitation technique and used for separating heavy metals and eliminating bacterial pollutants from water systems. The structural and morphological investigation of the synthesized pectin–cerium (IV) silicomolybdate (PCSM) was achieved by Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM) techniques, whereas, its chemical characterization was performed by energy-dispersive X-ray (EDX) spectroscopy. The IEC, and chemical and thermal stability of the composite were also determined to understand the composite material's properties. The IEC of the PCSM and CSM was 2.56 and 1.78 milli equivalents per g, respectively. PCSM exhibited chemical stability against different chemical solutions and was thermally stable at 600 °C and retained 24.21% of its initial IEC. The distribution coefficient (<i>K</i>_d) values of the numerous investigated metallic ions were assessed using different solvents to determine the composite's ion exchange characteristics. The distribution study indicated that PCSM was more selective toward Cr³⁺ ions. In addition, it was found to be effective for the separation of Cr³⁺ ions from binary metal ion mixtures such as Cd²⁺–Cr³⁺, Pb²⁺–Cr³⁺, Ni²⁺–Cr³⁺, and Co²⁺–Cr³⁺. PCSM has also shown antibacterial activity against Gram-negative bacteria <i>Escherichia coli</i>.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"32 12","pages":"1551 - 1565"},"PeriodicalIF":3.1,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42454348","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}

{"title":"Thermal imaging approach towards analyzing tribological response of UHMWPE-based hybrid nanocomposites","authors":"Sri Ram Murthy Paladugu,&nbsp;P. S. Rama Sreekanth","doi":"10.1007/s13726-023-01222-4","DOIUrl":"10.1007/s13726-023-01222-4","url":null,"abstract":"<div><p>Ultra high molecular weight polyethylene (UHMWPE) is a material used as joint replacement material. Rise in temperature is an inconsequential phenomenon due to the wearing joint and it is a concern that defines the performance and the wear phenomena. Current work is focused on understanding the influence of sudden increase in load and speed on wear behavior of UHMWPE composites by analyzing the temperature rise profile. A unique approach towards temperature generated at interface of sample and counterface (stainless steel 316-L and Zirconia) during the wear test on UHMWPE is analyzed at different load and speed conditions using thermal analyzer. Hardness and morphology characterizations were conducted on UHMWPE nanocomposites to observe the resistance to plastic deformation. Graphene-2D and Nanodiamond-0D were chosen as reinforcements. The temperature generated during load varying (20–80 N) and speed varying (1–1.67 m/s) conditions over 10 km. Wear studies on test samples revealed that wear volume of UHMWPE hybrid was reduced by 36 and 33% against 316-L and Zirconia discs because of greater inter-bonding. Gr had strongly influenced temperature profile because of high thermal conductivity. Surface morphology and topography of worn surfaces have been studied to understand the wear behavior. It is concluded that hybrid UHMWPE composite have superior wear performances at high loads and speeds. Correlating the results with thermal behavior would be a novel research in a relevant field.</p><h3>Graphical Abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"32 12","pages":"1523 - 1536"},"PeriodicalIF":3.1,"publicationDate":"2023-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13726-023-01222-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42824296","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}

{"title":"Non-isothermal crystallization kinetics of biodegradable regenerated poly(butylene carbonate-co-terephthalate) copolyesters based on post-consumer polyester fabrics","authors":"Yanfang Zhao,&nbsp;Tingting Pei,&nbsp;Rihui Liang,&nbsp;Guoliang Zhao,&nbsp;Zhongkai Yang","doi":"10.1007/s13726-023-01221-5","DOIUrl":"10.1007/s13726-023-01221-5","url":null,"abstract":"<div><p>The regenerated poly(butylene carbonate-<i>co</i>-terephthalate) (r-PBCT) copolyesters based on post-consumer polyester fabrics with similar intrinsic viscosity were synthesized via a two-step melt polycondensation method. The characteristic absorption peaks of the Fourier transform infrared (FTIR) spectroscopy and the chemical shift of the proton nuclear magnetic resonance (¹HNMR) spectroscopy both confirmed the successful synthesize of r-PBCT copolyesters. Moreover, r-PBCT copolyesters exhibited five characteristic diffraction peaks where the diffraction intensities gradually increased with the increase of bis(2-hydroxybutyl) terephthalate (BT) unit content. The effect of the BT unit content on non-isothermal crystallization kinetics of r-PBCT copolyesters was investigated by differential scanning calorimetry (DSC). Analysis of the melt crystallization data by Avrami equation modified by Jeziorny and Mo equation revealed the dependence of the crystallization rate on the BT unit content. The Avrami exponent (<i>n</i>) was in the range of 2.69–3.81 and the crystallization rate constant increased with the increase of BT unit content at a given relative crystallinity. It was revealed that the crystallization process of the r-PBCT copolyesters developed as a three-dimensional growth pattern of spherulites and BT units accelerated the crystallization rate significantly. And the r-PBCT copolyester sample with higher bis(2-methyl) butylene carbonate (BC) unit content had a higher <i>F</i>(<i>T</i>) value and required a relatively high cooling rate to obtain sufficient crystallinity. Finally, the crystallization activation energy (∆<i>E</i>) was estimated by Kissinger and Friedman equations, separately. The results further supported that the r-PBCT copolyester with more BT unit content was easier to arrange neatly through accelerated crystallization.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"32 12","pages":"1567 - 1580"},"PeriodicalIF":3.1,"publicationDate":"2023-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13726-023-01221-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50514851","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}

{"title":"Selective laser sintering of acrylonitrile butadiene styrene polymer and post-processing enhancement: an experimental study","authors":"Chen Jibing,&nbsp;Chen Junsheng,&nbsp;Yang Junsheng,&nbsp;Wu Yiping","doi":"10.1007/s13726-023-01220-6","DOIUrl":"10.1007/s13726-023-01220-6","url":null,"abstract":"<div><p>Acrylonitrile butadiene styrene (ABS) polymer refers to a high-molecular-weight amorphous copolymer with a wide softening range and specific viscoelasticity of polymer material. The application of such powder materials in additive manufacturing technology for selective laser sintering (SLS) for forming and its post-processing enhancement are rarely investigated. In this paper, the standard specimens of ABS powder were fabricated by SLS. The dimensional accuracy and the mechanical properties of specimens were examined, and the microstructure of tensile fracture was observed under a scanning electron microscope (SEM). The tensile, flexural, and impact strengths were obtained as 2.44 MPa, 5.10 MPa, and 2.77 kJ/m², respectively, as indicated by the results of this study. Accordingly, the SLS ABS parts are not suitable as functional prototypes. According to the thermodynamic equation, dissolution equation, capillary permeability formula, and the selection of diluent, the influence of diluent on viscosity, the influence of curing time on viscosity, and the influence of curing agent and viscosity on permeability are studied. Thus, the parts were infiltrated with two different types of epoxy resin (system Y and system W) to enhance the mechanical properties. The mechanical properties of specimens administrated with curing agent W increased 4.57, 3.87, and 1.64 times in terms of tensile, flexural, and impact strength, respectively; the others administrated with curing agent Y increased 6.38, 3.52, and 1.05 times, respectively. Accordingly, the results indicate that the SLS ABS parts enhanced by epoxy resin can serve as function parts, which is a feasible method since the properties of the composites can be readily tailored by changing different infiltration resins.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"32 12","pages":"1537 - 1550"},"PeriodicalIF":3.1,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45349715","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}