Polymer Engineering & Science最新文献

{"title":"The effect of the vanillin‐derived Si‐containing compound on the curing behavior, thermal and mechanical properties of bismaleimide resins","authors":"Bo Liu, Zhigang Yuan, M. Derradji, Caizhao Liu, Mingming Sun, Xugang Zhang, G. Xue, Caiyu Song, Bin Zhang","doi":"10.1002/pen.26830","DOIUrl":"https://doi.org/10.1002/pen.26830","url":null,"abstract":"Bismaleimide (BMI) resins is widely used in the aerospace field because of its excellent properties, but its poor toughness limits the possibility of its application in a wider range of fields. Therefore, a novel bio‐compound, 4‐(allyloxy)‐3‐methoxy‐N‐(3‐(triethoxysilyl)propyl)benzamide (AMTPM), was designed and synthesized from renewable vanillin, which has Schiff‐base structure, silico‐oxygen bond structure, and allyl structure. The chemical structure of AMTPM has been characterized and validated by Fourier transform infrared (FTIR) and hydrogen nuclear magnetic resonance (1H NMR). It was found that the addition of AMTPM can effectively promote the curing behavior of BD resins (BMI and diallyl bisphenol A (DBA) was mixed and cured at the ratio of 1:0.87, named BD resins). AMTPM can affect the thermal stability and improve the mechanical properties of BD‐AMTPM resins (BD resins modified by AMTPM in different addition), and the detailed discussion was conducted. With the increase of AMTPM content, the thermal stability of BD‐AMTPM resins was deteriorated while the residual weight percentage at 800°C (Yc) was increased. When the content of AMTPM reached 12 wt%, the results showed that Yc achieved the values at a magnitude of 37.57%. Meanwhile, the glass transition temperature (Tg) achieved 320°C. Among the BD‐AMTPM resins system, the BD‐6 wt% AMTPM has the best toughness and mechanical properties. The impact strength was increased by 29.2%, the tensile strength was increased by 22.1% and the elongation at break was increased by 44%. The fracture morphology of BD‐AMTPM resins was also studied by scanning electron microscopy (SEM) to support the mechanical experimental conclusions. This study provides a more environmentally friendly and convenient modifier, which is of great significance for expanding the application of bismaleimide resin.\u0000A bio‐based modifying agent (AMTPM) was designed and successfully synthesized.\u0000AMTPM has both Si‐O and Schiff‐base structures.\u0000AMTPM can effectively improve the toughness of BD‐AMTPM resins through impact and tensile tests.\u0000","PeriodicalId":134997,"journal":{"name":"Polymer Engineering & Science","volume":"28 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141341905","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 and modeling of an epoxy vitrimer based on disulfide exchange for wet filament winding applications","authors":"N. Lorenz, T. Zawadzki, L. Keller, J. Fuchs, K. Fischer, Ch. Hopmann","doi":"10.1002/pen.26805","DOIUrl":"https://doi.org/10.1002/pen.26805","url":null,"abstract":"The present paper investigates the suitability of a vitrimeric epoxy resin for processing in the wet filament winding (WFW) process to manufacture fiber‐reinforced polymers (FRP). Comprehensive material characterization of a commercially available epoxy and vitrimeric resin based on disulfide exchange is carried out, and the processing in WFW is evaluated by analyzing thermomechanical, rheological, thermochemical properties, and chemical shrinkage. The direct comparison of a vitrimer and an established epoxy resin permits an indication of the processability and necessary adjustments in WFW. Based on the implications of modeling, we demonstrate the processing of the vitrimeric resin in the WFW process by increasing the resin bath temperatures. The vitrimer's and conventional resin's elastic modulus development and compression behavior were similar, highlighting the vitrimeric resin's potential. Further, the results confirm that established characterization and modeling routines can be transferred to vitrimeric resins and, therefore, path the way toward advanced process simulation of vitrimeric resin's processing. For this, the present publication gives essential advice for setting up testing schedules for characterizing epoxy vitrimers' processing behavior and their appropriate modeling. The present work underlines the potential of applying commercially available dynamic hardeners to manufacture recyclable and malleable FRP in established processes.\u0000Material characterization and modeling of wet filament winding process.\u0000Wet filament winding of epoxy vitrimers.\u0000Thermomechanical and chemical shrinkage characterization of epoxy vitrimers.\u0000Rheological and kinetic modeling of epoxy vitrimer.\u0000","PeriodicalId":134997,"journal":{"name":"Polymer Engineering & Science","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141353238","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":"Effect of graphene nanoplatelets and nano zinc oxide on gas barrier and antibacterial properties of thermoplastic nanocomposites","authors":"S. Ghosh, Soumya Sarathi Ganguly, Sangit Paul, Trisita Ghosh, Amit Kumar Das, N. C. Das","doi":"10.1002/pen.26840","DOIUrl":"https://doi.org/10.1002/pen.26840","url":null,"abstract":"Graphene‐loaded thermoplastic nanocomposite films must be evaluated for antibacterial activity, mechanical, and barrier properties before being utilized as food packaging. Herein, economically feasible linear low‐density polyethylene (LLDPE)‐based flexible packaging materials were developed via the melt compounding technique at 170°C temperature by taking advantage of both graphene nanoplatelets (GNP) and nano zinc oxide (ZnO) fillers. Morphological studies reveal that in composites loaded with GNP/ZnO hybrid fillers, ZnO nanoparticles form a network‐like structure throughout the polymer matrix. Simultaneously, GNPs are uniformly dispersed. The inclusion of hybrid nanofiller considerably reduces both the oxygen transmission rate and the water vapor transmission rate (WVTR) in LLDPE nanocomposites. A maximum decrease of 36% and 67%, respectively, in both oxygen transmission rate and WVTR is observed for 3 wt% of hybrid filler loading in a thermoplastic matrix containing 1 wt% of nano ZnO. The antibacterial efficacy of the derived nanocomposite films is obvious against gram‐positive (Bacillus subtilis) and gram‐negative (Escherichia coli) bacterial strains. These nanocomposite films have the potential to be successfully utilized as flexible packaging materials owing to their improved thermal, barrier, and antibacterial effectiveness.\u0000GNP/ZnO was used as a hybrid reinforcing filler in the LLDPE matrix.\u0000ZnO nanoparticles establish a network‐like morphology.\u0000LLDPE nanocomposite films exhibited excellent antibacterial activity.\u0000Oxygen and water vapor barrier properties were significantly improved.\u0000The thermoplastic composite films could be used as food packaging materials.\u0000","PeriodicalId":134997,"journal":{"name":"Polymer Engineering & Science","volume":"3 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141353734","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":"Exploring the properties of gelatin/chitosan bioaerogel scaffolds: Toward ultra‐light and highly porous materials","authors":"Wafa Mustafa Saleh, E. Yahya, M. Ahmad, H. A. Khalil","doi":"10.1002/pen.26827","DOIUrl":"https://doi.org/10.1002/pen.26827","url":null,"abstract":"This study investigates the development and characterization of chitosan, gelatin, and chitosan/gelatin (Chi/Gel) bioaerogel composites through a facile and eco‐friendly approach. The goal is to optimize their structural and functional properties for potential environmental and biomedical applications. Direct freezing and lyophilization approach were used to prepare the aerogels, the focus was on investigating the effects of blending ratios on the density, porosity, surface area, and water absorption capabilities of the aerogels. The results show that Chi/Gel 60/40 composition achieved an optimal balance of structural robustness and functional performance, characterized by a moderate density of 74.2 mg/cm3, the highest porosity among the samples at 93.5%, an impressive surface area of 184.8 m2/g, and a water absorption capacity of 28.8 g/g. These results suggest that the synergistic effect of chitosan and gelatin at specific ratios significantly enhances the overall properties of the material. Our findings suggest that Chi/Gel bioaerogels, especially the 60/40 composite, hold great promise for diverse applications.\u0000All Gelatin/Chitosan bioaerogels exhibited high porosity and low density.\u0000The Chi/Gel 60/40 mix achieved the highest porosity and surface area.\u0000Highest water adsorption was observed in the Chi/Gel 60/40 composite.\u0000Synergistic effects enhanced properties of the Gelatin/Chitosan scaffolds.\u0000","PeriodicalId":134997,"journal":{"name":"Polymer Engineering & Science","volume":"103 25","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141352319","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":"Enhanced melt flow UHMWPE/HDPE blends melt spinning and performance study","authors":"Gonghao Wang, Jie Liu, Shengxue Qin, Hongbin Zhang, Haiping Zhou","doi":"10.1002/pen.26811","DOIUrl":"https://doi.org/10.1002/pen.26811","url":null,"abstract":"The extremely low melt flowability of ultra‐high molecular weight polyethylene (UHMWPE) is the primary obstacle to its melt processing. Particularly in melt spinning processes, the extremely high molecular weight of UHMWPE and the density of entangled molecular chains severely limit its production efficiency and monofilament performance. This study investigates the effect of flow modifiers on the melt spinning process of UHMWPE/HDPE blends, focusing on CaSt2, PEG, and CaSt2/silicone powder composite additives, and their impact on the standard tensile samples and monofilament tensile properties of UHMWPE/HDPE. The mechanism of additive influence on the tensile properties of UHMWPE/HDPE blends is analyzed through tensile strength testing, thermal analysis, and microscopic morphology observation. The results show that in standard tensile samples, CaSt2 or CaSt2/silicone powder composite additives can enhance the crystallinity of the blend, thereby improving its tensile strength. Conversely, adding PEG significantly reduces the crystallinity and tensile strength of the blend. The maximum tensile strength of CaSt2‐modified UHMWPE/HDPE monofilament is 1236.61 MPa. This enhancement is attributed to the lubricating effect of CaSt2, which simultaneously assists the molecular chains in the amorphous region, and the reorientation of the stress‐induced molten lamellar structure under tension, greatly promoting the formation of straight‐chain crystals in the monofilament. During hot drawing, PEG inhibits the formation of straight‐chain crystals in the monofilament, resulting in a 3.06% decrease in maximum crystallinity compared with standard tensile samples. When CaSt2 is combined with silicone powder, the additives tend to aggregate during hot drawing, and these larger aggregate particles hinder the orientation of molecular chains along the drawing direction, resulting in a 30.75% decrease in maximum tensile strength of the monofilament compared with the standard tensile samples.\u0000The tensile property of UHMWPE/HDPE blends modified with additives was discussed.\u0000Analytical techniques including DSC, SEM, and tensile strength tests were used.\u0000The maximum tensile strength of the monofilament can reach up to 1236.61 MPa.\u0000UHMWPE/HDPE/CaSt2 = 60/40/0.5 exhibits the best tensile property.\u0000","PeriodicalId":134997,"journal":{"name":"Polymer Engineering & Science","volume":"62 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141353441","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":"Combined antibacterial and antifouling properties of polyethersulfone mixed matrix membranes with zwitterionic graphene oxide nanostructures","authors":"R. Castellanos Espinoza, M. J. Huhn Ibarra, A. J. M. Montes Luna, Manuel Aguilar-Vega, M. M. Hernández Orozco, Gabriel Luna Bárcenas, L. A. Baldenegro Pérez, Minerva Guerra Balcázar, B. L. España Sánchez","doi":"10.1002/pen.26825","DOIUrl":"https://doi.org/10.1002/pen.26825","url":null,"abstract":"The impact of zwitterionic graphene oxide (GO‐Arg) nanostructures into polyethersulfone (PES) membranes was studied, aiming to perform mixed matrix membranes (MMMs) with combined antibacterial and antifouling properties. For this purpose, 0.25, 0.50, and 1.0 wt% of GO‐Arg were incorporated through the phase inversion method. The chemical composition reveals that the electrostatic interactions of PES, polyvinylpyrrolidone, and GO‐Arg occur by enhancing the CH/NH vibrations associated with the intrinsic MMMs and their combined antibacterial and antifouling performance. Well‐defined finger‐like morphology was observed, performing the pore distribution and the finger‐cavity inclination induced by the electrostatic charge of GO‐Arg. As a result, GO‐Arg MMM's hydrophobic properties decreased from 77.8° to 52.3°, inducing a partially hydrophilic surface and improved water flux. The isoelectric point of nanostructured membranes slightly changes by the charge modulation produced by zwitterionic GO‐Arg. The antibacterial activity against Gram (−) Escherichia coli was improved, closing the complete bacterial inhibition after 24 h. As a result, antifouling performance was improved, avoiding bacterial adhesion into the membrane surface and the possibility of promoting biofilm formation. Our results demonstrate that zwitterionic nanomaterials in MMMs perform the multifunctional capacity of materials, emerging as an effective alternative with potential application in wastewater treatment.\u0000The incorporation of zwitterionic GO‐Arg improves the mechanical properties of MMMs.\u0000GO‐Arg‐enhanced well‐defined porous finger‐like morphology in MMMs.\u0000GO‐Arg improves the antibacterial/antifouling performance of PES‐based MMMs.\u0000","PeriodicalId":134997,"journal":{"name":"Polymer Engineering & Science","volume":"28 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141354492","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":"Study on the expansion of nitrile rubber in high‐pressure hydrogen gas atmospheres: Calculations and experiments","authors":"Xiaozhen Lei, Bin Zheng, Dongxu Xue","doi":"10.1002/pen.26816","DOIUrl":"https://doi.org/10.1002/pen.26816","url":null,"abstract":"Hydrogen with small molecule size under high pressure can permeate most materials, being a challenge for rubber sealing materials used in hydrogen storage. The volume expansion of rubber materials due to high‐pressure hydrogen is an important indicator of their degradation and failure. Here, both microscopic calculations and experimental investigations of the nitrile rubber were conducted to evaluate the relation between the structure features and the expansion performance. Three factors, the acrylonitrile amount, the chain length, and the crosslinking degree, were considered to impact on the expansion of the nitrile rubber. Current study indicates that the increasing of acrylonitrile amount can result in the reduction of the volume expansion, owing to the preferential interactions between hydrogen and the butadiene group of nitrile rubber. Both of the chain length and the crosslinking degree are positively proportional to the chain elongation and then the volume of the nitrile rubber. Especially, the amount of acrylonitrile was found to be a key factor for evaluating the expansion of nitrile rubber under high‐pressure hydrogen. This study performs microscopic calculations and macroscopic experiments to investigate the expansion of nitrile rubber, which is expected to be used in designing the sealing rubber material for high‐pressure hydrogen storage applications.\u0000Acrylonitrile determines the expansion performance of NBR within high‐pressure hydrogen.\u0000Short chain and low crosslinking density suppressed the expansion of NBR.\u0000Evaluating the expansion of nitrile rubber exposed to high‐pressure hydrogen.\u0000","PeriodicalId":134997,"journal":{"name":"Polymer Engineering & Science","volume":"131 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141351350","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":"Colloidal and thermal properties of poly(hydroxyethyl caprolactone acrylate‐co‐methyl methacrylate)‐g‐pullulan latex obtained by seeded semi‐batch emulsion polymerization","authors":"Samuel A. Santos, Eduardo G. M. Romão, Lara R. Nahra, Lila M. Guerrini, M. P. Oliveira","doi":"10.1002/pen.26820","DOIUrl":"https://doi.org/10.1002/pen.26820","url":null,"abstract":"In this study, the influence that the monomer composition of hydroxyethyl caprolactone acrylate/methyl methacrylate (HECLA/MMA) has on the properties of the latex films, including contact angle, thermogravimetric analysis, and mechanical properties was evaluated. The polymerization process to obtain small particle sizes, good colloidal stability, and polymer films was optimized through the use of pullulan (Pull) and different ratios of HECLA and MMA. The results revealed a substantial impact of the monomer composition and polymerization processes on the particle size and latex film properties. The use of seed latex obtained in situ reduces particle size and particle size distribution. Additionally, it was observed that the contact angle of the polymer films increased as the concentration of HECLA increased. Furthermore, the water absorption of the polymer films exhibited a decreasing trend after reaching an 80/20 monomer composition of HECLA/MMA. An increase in HECLA contents in the recipe showed a reduction in tensile strength, elastic modulus, hardness, and elongation at break. Conversely, higher HECLA contents contributed to improving the thermal properties of the polymer films. Finally, the optimal ratio of HECLA/MMA to improve the thermal degradation and tensile mechanical properties of the polymer film was 50/50 wt%. The results found in this work allow additional data for producing poly(HECLA‐co‐MMA)‐g‐Pull latexes by manipulating the ratios of HECLA and MMA, which can create new potential applications in various industrial settings for a wide range of polysaccharides.\u0000Poly(HECLA‐co‐MMA)‐g‐Pull with different ratios of HECLA/MMA were successfully obtained.\u0000The use of Pull after molar mass reduction had a significant effect on colloidal stability.\u0000A reduction in tensile strength and elongation at break was obtained by increasing the amount of HECLA.\u0000Thermal stability of the latex films showed a direct relationship with the content of HECLA.\u0000Poly(HECLA‐co‐MMA)‐g‐Pull latexes can be used in agricultural applications.\u0000","PeriodicalId":134997,"journal":{"name":"Polymer Engineering & Science","volume":"77 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141353195","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":"Molecular dynamics of poly(ε‐caprolactone)/beidellite organoclay bionanocomposites obtained by in‐situ polymerization highlighted by dielectric relaxation spectroscopy","authors":"Imene Ezzeddine, M. Ilsouk, Mourad Arous, S. Atlas, M. Lahcini, M. Raihane","doi":"10.1002/pen.26810","DOIUrl":"https://doi.org/10.1002/pen.26810","url":null,"abstract":"Nanocomposites of poly(ε‐caprolactone) (PCL) reinforced by an organomodified beidellite (BDT) with 3% of cetyltrimethylammonium bromide (CTAB) (labeled PCL/3CTA‐BDT) were prepared by varying the content of filler (1, 2, 3, and 5 wt%). Their molecular dynamics were investigated by broadband dielectric spectroscopy at temperatures ranging from 0 to 40°C and a frequency window from 10−1 to 106 Hz. Three relaxation processes were detected for unfilled PCL: electrode polarization (EP), the Maxwell–Wagner–Sillars (MWS) polarization, and the α‐relaxation. The incorporation of the filler induced the emergence of a fourth process at high frequency of dipolar origin labeled as interfacial polarization (IP). Fitting the data with the Havriliak–Negami model as well as a study of the relaxation time variation with temperature demonstrated the noncooperative nature of the IP process. Activation energy and dielectric strength values demonstrated that the PCL/3CTA‐BDT with 3 wt% of filler showed a higher quality of dispersion and better interfacial features compared to those with other filler contents (2 and 5 wt%). This work highlights the challenges of dielectric green nanocomposites used for capacitors (storage energy) and cable/wire insulation.\u0000The various samples were analyzed using broadband dielectric spectroscopy.\u0000Relaxation processes in pure matrix: EP, MWS, and α‐relaxation.\u0000Incorporation of the filler induced the emergence of interfacial polarization (IP).\u0000Noncooperative behavior of the IP process.\u00003 wt% loading showed a higher quality of dispersion and interfacial features.\u0000","PeriodicalId":134997,"journal":{"name":"Polymer Engineering & Science","volume":" 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141374069","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":"Development of pH response film based on potato starch/polyvinyl alcohol using Kyoho grape skin extract to monitor pork freshness","authors":"Shihui Wang, Biao Zhao, Yanling Hao, Qixiang He","doi":"10.1002/pen.26744","DOIUrl":"https://doi.org/10.1002/pen.26744","url":null,"abstract":"In this study, the optimal ratio of starch and polyvinyl alcohol (PVA) was successfully selected by response surface method. The novel packaging films were fabricated by immobilizing Kyoho skin extract (KSE) within starch/PVA composite film by the casting method. The mechanical property, PH sensitivity, and other properties of films with different KSE content (1–5 mL) were studied. The starch/PVA film with 3 mL KSE (SPK3.0 film) showed more uniform structure than the starch/PVA film in microscope. At the same time, the film has strong mechanical properties and low water barrier capacity. Infrared analysis of the film further revealed hydrogen bond interaction between film matrix and KSE. The smart packaging film displayed distinguishable changes of color from purple to green in pH (1–13). Furthermore, the smart films possessed excellent antioxidant. Therefore, the SPK films had the potential application potential in the field of packaging.\u0000Barrier properties and antioxidant activity were enhanced significantly by the addition of KSE.\u0000The film components are connected by hydrogen bonds so that they have good compatibility.\u0000The functional film shows different colors in the range of pH 1–13.\u0000","PeriodicalId":134997,"journal":{"name":"Polymer Engineering & Science","volume":"19 s28","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141377951","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}