Journal of Vinyl & Additive Technology最新文献

{"title":"Dual-Phase Flame-Retardant Action of Bio-Based DOPO-ITA: Improved Fire Safety, Thermal Stability and Mechanical Properties of Rigid Polyurethane Foam","authors":"Xu Zhang,&nbsp;Xiaoxiang Qu,&nbsp;Guoqing Sun,&nbsp;Zhi Wang,&nbsp;Hua Xie","doi":"10.1002/vnl.70093","DOIUrl":"https://doi.org/10.1002/vnl.70093","url":null,"abstract":"<div>\u0000 \u0000 <p>Rigid polyurethane foam (RPUF) was widely applied in thermal insulation and lightweight structures, but was flammable with heavy smoke. And high-dose fillers in current flame retardancy compromised its structure and mechanical properties. In this study, a reactive bio-based phosphorus-containing flame retardant (DOPO-ITA) was synthesized via the reaction between 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and bio-based itaconic acid (ITA). The resultant DOPO-ITA was covalently incorporated into the cross-linked network of RPUF. The effects of DOPO-ITA addition on the heat release characteristics, smoke generation behavior, char layer structure evolution, and mechanical properties of the modified RPUF were systematically investigated. Cone calorimeter tests showed that when the loading of DOPO-ITA reached 5 wt%, the peak heat release rate (PHRR) and total smoke release (TSR) of the modified foam decreased by 40.74% and 37.88%, respectively, compared with the unmodified sample. The limiting oxygen index (LOI) value of the corresponding sample increased to 21.5%, and the sample passed the UL-94 V-1 rating, exhibiting superior self-extinguishing performance. Scanning electron microscopy (SEM) and Raman spectroscopy of the char residues demonstrated that DOPO-ITA facilitated the formation of a continuous, low-defect phosphorus-rich char layer. The <i>I</i>\u0000 _D/<i>I</i>\u0000 _G ratio of the char layer decreased from 4.58 to 3.01, revealing a significant improvement in the ordering degree of the char layer. RPUF-2 with 5 wt% DOPO-ITA achieved the optimal comprehensive performance, synergistically improving the flame retardancy, smoke suppression, mechanical properties, and thermal stability of the RPUF. This bio-based reactive flame retardant solved the performance degradation issue of traditional flame-retardant modifications and provided an eco-friendly solution for fire-sensitive applications.</p>\u0000 </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"32 5","pages":"1267-1285"},"PeriodicalIF":4.0,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of Sericin/Polyurethane Fabrics With Enhanced UV Resistance via Wet-Spinning Method","authors":"Yuntong Yao,&nbsp;Qian Hu,&nbsp;Zhihong Jiang,&nbsp;Ruohan Liu,&nbsp;Cheng Jiang,&nbsp;Chunhua Zhang,&nbsp;Jiajing Zhang,&nbsp;Liangjun Xia","doi":"10.1002/vnl.70092","DOIUrl":"https://doi.org/10.1002/vnl.70092","url":null,"abstract":"<div>\u0000 \u0000 <p>Sericin (SPS), a major protein waste generated in large quantities by the silk textile industry, remains significantly underutilized within the textile sector. To address this gap, this study simultaneously targets the inherent limitations of polyurethane (PU) fibers, which include poor water absorption and a lack of UV protection. We propose a high-value strategy based on the integration of SPS with PU. Sericin/polyurethane (SPS/PU) composite fibers were fabricated via wet-spinning, and their microstructure, mechanical properties, thermal stability, water absorption, and UV protection performance were systematically characterized. Results showed that the incorporation of SPS introduced an internal porous structure, which significantly enhanced water absorption. At 40 wt.% SPS content, the composite fibers retained good tensile strength of 1.27 cN/dtex and strain of 1004.71%. Fabrics woven from these fibers achieved an ultraviolet protection factor (UPF) &gt; 40 and UVA transmittance &lt; 5%, meeting standards for rated UV-protective textiles. This work demonstrates a viable and sustainable material strategy to transform textile bio-waste into high-performance multifunctional fibers, effectively combining enhanced functionality with resource circularity.</p>\u0000 </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"32 5","pages":"1258-1266"},"PeriodicalIF":4.0,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of Polyvinyl Alcohol-Based Packaging Film With Hydrophobic Surface and High Mechanical Strength","authors":"Gasim Sebit Ahmed Suleiman,&nbsp;Xu Zeng,&nbsp;Yakai Feng","doi":"10.1002/vnl.70088","DOIUrl":"https://doi.org/10.1002/vnl.70088","url":null,"abstract":"<div>\u0000 \u0000 <p>Despite extensive research on alternatives to petroleum-based materials, developing polyvinyl alcohol (PVA)-based films that simultaneously exhibit high hydrophobicity and mechanical robustness remains a persistent challenge. In this study, we propose a straightforward surface modification strategy to fabricate PVA-based packaging film with enhanced mechanical strength in a watery environment. The approach employs imidazole-blocked hexamethylene diisocyanate (BHDI) in ethyl laurate, a food-grade, non-toxic solvent that swells PVA film without dissolving it. Unlike conventional crosslinking strategies that rely on toxic aldehydes or strong organic solvents, this method enables uniform, controlled surface crosslinking via thermally activated deblocking. The regenerated isocyanate then reacts with surface hydroxyl groups through nucleophilic addition without compromising processing safety. The resulting crosslinked PVA-BHDI films displayed a water contact angle (WCA) of 102° at room temperature. The PVA-BHDI₅ film demonstrated a tensile strength of 80.1 ± 0.33 MPa under dry condition. The film retained a tensile strength of 36.2 ± 0.20 MPa after 24 h immersion in water at ambient temperature, similar to that of polyethylene (PE) in its dry state. Remarkably, the films maintained their hydrophobicity and structural integrity, showing no signs of dissolution or fracture even after 4 h of immersion in 95°C hot water. In addition, the crosslinked films showed improved moisture barrier and UV-blocking capabilities. This study presents the first demonstration of a safe, solvent-assisted, surface-targeted BHDI crosslinking system for PVA, enabling high hydrophobicity, wet-state mechanical strength, and thermal water resistance for potential use as plastic bags and packaging.</p>\u0000 </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"32 5","pages":"1210-1223"},"PeriodicalIF":4.0,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bio-Based Epoxy Cardanol Butyrate Ester as a High-Efficiency Plasticizer: Antimicrobial Performance and Low Migration","authors":"Yanmeng Lu,&nbsp;Pingping Jiang,&nbsp;Pingbo Zhang,&nbsp;Nan Wang,&nbsp;Jing Xu,&nbsp;Shijun Chen","doi":"10.1002/vnl.70109","DOIUrl":"https://doi.org/10.1002/vnl.70109","url":null,"abstract":"<div>\u0000 \u0000 <p>A novel epoxidized cashew nut phenol derivative plasticizer (ECAE) was successfully designed and synthesized as a green, bio-based alternative to conventional phthalate plasticizers. Cashew nut phenol was chemically modified via a two-step reaction sequence involving esterification followed by epoxidation, yielding a multifunctional plasticizer that incorporated flexible long-chain alkyl groups, ester functionalities, and epoxy groups. When blended with PVC, ECAE exhibited superior performance: a glass transition temperature of 28.10°C, elongation at break reaching 702.12% at 50 phr loading, and antibacterial activity with a 15 mm inhibition zone against \u0000 <i>Staphylococcus aureus</i>\u0000 . It also demonstrated excellent stability, with only 0.3% migration after 240 h in distilled water at 25°C. Quantum chemical calculations elucidated the plasticization mechanism, revealing how the combination of spatial effects from long-chain alkyl groups and anchoring effects from polar functional groups modulates PVC chain segment dynamics. This bio-based plasticizer represents a significant advance in sustainable polymer technology, meeting environmental requirements while maintaining high performance. It holds potential for applications in food packaging and medical device manufacturing, where material performance and safety are paramount.</p>\u0000 </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"32 5","pages":"1396-1409"},"PeriodicalIF":4.0,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biosynthesis and Characterization of ZnO Nanoparticles Using Dillenia indica L. Sepals Extract and Their Concentration Effects on Properties of PVA Nanocomposite Films","authors":"Akuleti Saikumar,&nbsp;Karanjit Kapila,&nbsp;Laxmikant S. Badwaik","doi":"10.1002/vnl.70103","DOIUrl":"https://doi.org/10.1002/vnl.70103","url":null,"abstract":"<div>\u0000 \u0000 <p>In the present study, biosynthesis of zinc oxide nanoparticles (ZnO NPs) was carried out using the underutilized aqueous sepals extract of \u0000 <i>Dillenia indica</i>\u0000 as a natural resource. The synthesized ZnO NPs (0.1%, 0.3%, and 0.5%) were reinforced into a polyvinyl alcohol (PVA) matrix, and their effects on the morphological, thermal, mechanical, and barrier properties of PVA nanocomposite films were reported. The prepared ZnO NPs were characterized to analyze their functional groups, UV absorption properties, crystalline structure, elemental composition, surface morphology, zeta potential, hydrodynamic measurements and antimicrobial activities. The peaks of XRD diffraction were closely aligned with the standard pattern for hexagonal wurtzite ZnO. The mean crystallite size of the ZnO NPs was found to be 12.83 nm. The hydrodynamic diameter of ZnO NPs was 580.2 nm with a polydispersity index (PDI) of 0.606. The maximum antibacterial activity was observed at the concentration of ZnO NPs (0.5%) against \u0000 <i>E. coli</i>\u0000 (24.90 ± 0.656 mm) and \u0000 <i>S. aureus</i>\u0000 (21.18 ± 0.928 mm). The reinforced effects of ZnO NPs significantly enhanced the tensile strength (TA) of the PVA nanocomposites from 39.736 ± 1.431 MPa to 53.209 ± 0.983 MPa with the addition of 0.3%, respectively. The water vapor permeability (WVP) of the films was significantly decreased from 36.160 ± 1.860 (g·mm/m²·day·kPa) to 10.883 ± 0.552 (g·mm/m²·day·kPa) with increasing ZnO NPs concentration. In conclusion, the antibacterial activity of synthesized ZnO NPs and their positive impact on the properties of PVA nanocomposite films make them suitable for food safety applications.</p>\u0000 </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"32 5","pages":"1350-1363"},"PeriodicalIF":4.0,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication and Characterization of Starch/PVA Blend Films Reinforced With Black Tea for Packaging Applications","authors":"Vandana Arya,&nbsp;Shweta Saraswat","doi":"10.1002/vnl.70090","DOIUrl":"https://doi.org/10.1002/vnl.70090","url":null,"abstract":"<div>\u0000 \u0000 <p>Conventional petroleum-based plastics, with annual global production exceeding 400 million metric tons, pose severe environmental challenges due to their nonbiodegradable nature and persistent pollution, necessitating innovative bio-based derived alternatives. This study addresses this need by developing bioplastic films through solution casting of potato peel starch and polyvinyl alcohol (PVA) reinforced with black tea waste extract (BTWE) at 0.5%–2.0% w/v, using glycerol as a plasticizer. BTWE was characterized via GC–MS, revealing 44 bioactive compounds, including 2-hydroxymethyl-5-furfural (34.02%) and caffeine (9.29%). Films were comprehensively evaluated for mechanical, barrier, optical, friction, migration, and structural properties using standardized ASTM/ISO methods. Key findings demonstrate concentration-dependent enhancements: tensile strength increased from 8.35 MPa (control) to 13.42 MPa (2.0% BTWE), approaching LDPE (10–21 MPa); burst strength peaked at 3.95 kg/cm² (1.0% BTWE), matching commercial standards (2–5 kg/cm²); and elongation reached 692% for flexibility. Water absorption was minimized to 118.07% (1.5% BTWE vs. 155.92% control) through polyphenol-polymer hydrogen bonding; migration stayed below 1.79 mg/dm², compliant with EU limits (10 mg/dm²); and thickness increased from 0.124 to 0.152 mm. SEM revealed progressive surface roughness uniformity, while FTIR confirmed strengthened hydrogen bonds; the 1.5% BTWE formulation optimized performance. Overall, this work offers a scalable, eco-efficient, and scientifically robust strategy for transforming biowaste into high-quality bioplastic films for advanced packaging applications, thereby contributing meaningfully to environmental stewardship and materials innovation.</p>\u0000 </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"32 5","pages":"1237-1257"},"PeriodicalIF":4.0,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancement of Flame Retardancy and Mechanical Properties of Compression-Molded Silicone Rubber Foam With Core–Shell SiO2@LDH Particles","authors":"Haolan Gou,&nbsp;Feihong Chen,&nbsp;Dan Qian,&nbsp;Hong Fan,&nbsp;Xubin He","doi":"10.1002/vnl.70108","DOIUrl":"https://doi.org/10.1002/vnl.70108","url":null,"abstract":"<div>\u0000 \u0000 <p>High-temperature vulcanized silicone rubber (HTV-SR) foams with high loadings of flame retardants typically exhibit poor processability and compromised thermal insulation performance when prepared by compression molding. In this study, a novel flame-retardant system composed of hydrophobic core–shell SiO₂@LDH particles and a platinum–amine coordination compound was developed for HTV-SR foams. The core–shell SiO₂@LDH particles exhibit ultrathin LDH nanosheets and a high specific surface area of 224.3 m² g⁻¹, enabling good dispersion in the HTV-SR matrix. Silicone rubber compounds containing a unique core–shell nanostructure of SiO₂@LDH show excellent processability, allowing for easy preparation of HTV-SR foam with a high expansion ratio by standard compression molding. SiO₂@LDH exert a pronounced flame-retardant effect for HTV-SR foam in both the gas and condensed phases. A synergistic effect is achieved by employing a small amount of platinum–amine coordination compound, which promotes a robust char layer at high temperatures and enhances flame inhibition of the SR/SiO₂@LDH foam. With only 15 phr of SiO₂@LDH particles, the SR/SiO₂@LDH foam achieves a UL-94 V-0 rating and a limiting oxygen index (LOI) of 33.5%. Furthermore, the SR/SiO₂@LDH foam shows a high expansion ratio with low density (0.35 g/cm³), low thermal conductivity (0.076 W/(m K)), high tensile strength (237.1 kPa), elongation at break (205.8%), and rebound resilience (7.2%). This study presents an advanced flame-retardant system for HTV-SR foams compatible with continuous compression molding, producing a flame-retardant foam with exceptional mechanical and thermal insulation properties.</p>\u0000 </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"32 5","pages":"1379-1395"},"PeriodicalIF":4.0,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"TESPT-Assisted Devulcanization and Functionalization of Ground Tyre Rubber for Sustainable Rubber Compounds","authors":"Dipankar Mondal,&nbsp;Soumyajit Ghorai,&nbsp;Sakrit Hait,&nbsp;Sven Wießner,&nbsp;Amit Das,&nbsp;Animesh Talapatra,&nbsp;Dipankar Chattopadhyay,&nbsp;Debapriya De","doi":"10.1002/vnl.70082","DOIUrl":"https://doi.org/10.1002/vnl.70082","url":null,"abstract":"<div>\u0000 \u0000 <p>Discarded rubber products pose a significant environmental challenge due to their non-biodegradability and difficulty in recycling. Devulcanization stands out as the most promising technique for recycling rubber waste, transforming thermosetting rubber into a thermoplastic-like material that retains many of the characteristics of original rubber. Waste tyre rubber is particularly valuable for recovery or regeneration due to its high hydrocarbon content. This study explores the mechano-chemical devulcanization of ground tyre rubber (GTR) using bis(3-triethoxysilylpropyl)tetrasulfide, followed by its incorporation into silica-filled natural rubber (NR) compounds at varying proportions (20–60 wt%) to assess its potential for product applications. A 30% replacement of fresh NR with devulcanized GTR (r-GTR) significantly enhanced the mechanical performance and thermal behaviour of the green composite compared to the control formulation without r-GTR. The performance evaluation clearly demonstrates that tensile strength is increased by 153% and T_max improved by 7°C for r-GTR(30) with respect to r-GTR(0). Scanning electron microscopy (SEM) images showed that silica filler was evenly distributed throughout the green composite, despite the absence of a coupling agent. Glass transition temperature (T_g) measurements obtained via dynamic mechanical analysis (DMA) and molecular dynamics simulation showed strong correlation, with the simulated values closely matching the experimental data and relative deviations remaining below 1.63%. The enhanced silica–rubber interaction with r-GTR content improves silica dispersion in the NR/r-GTR/SiO₂ composite, ultimately lowering the rolling resistance of the composites.</p>\u0000 </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"32 5","pages":"1174-1192"},"PeriodicalIF":4.0,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemically Exfoliated Graphene Synergized With MPP/ADP for In Situ Polymerized Flame-Retardant PA6 Composites","authors":"Dengwang Lai,&nbsp;Cheng Cao,&nbsp;Wuyan Cao,&nbsp;Li Liu,&nbsp;Yuejun Liu,&nbsp;Jun Yang","doi":"10.1002/vnl.70083","DOIUrl":"https://doi.org/10.1002/vnl.70083","url":null,"abstract":"<div>\u0000 \u0000 <p>Polyamide 6 (PA6) is inherently flammable and prone to severe melt-dripping, which severely restricts its application in aerospace, rail transit, and public safety sectors. To address this, we developed a complementary flame-retardant system by incorporating electrochemically exfoliated graphene (GR), melamine polyphosphate (MPP), and aluminum diethylphosphinate (ADP) into PA6 via in situ polymerization. The thermal stability and interactions among the three components were thoroughly investigated. The results indicate that the optimized formulations exhibit significant flame-retardant enhancement. Specifically, the GR/MPP/ADP/PA6-012 and GR/MPP/ADP/PA6-75 composites achieved limiting oxygen index (LOI) values of 35% and 29%, respectively, and both passed the vertical burning test and achieved V-0 rating, without any dripping. In cone calorimetry, the GR/MPP/ADP/PA6-57 composite demonstrated the most effective heat-release suppression, with the peak heat release rate (pHRR) and total heat release (THR) significantly reduced to 76.3 kW m⁻² and 37.7 MJ m⁻², respectively. Mechanistic analysis reveals that GR forms a continuous, compact physical barrier during combustion, effectively hindering heat transfer. MPP promotes the formation of an expanded char layer, enhancing condensed-phase protection. Meanwhile, ADP releases PO<b>·</b> radicals in the gas phase to quench flame-active species and simultaneously promotes char formation. The three components work complementarily, establishing a multi-level “barrier–charring–quenching” flame-retardant network. This study proposes an efficient and environmentally friendly flame-retardant strategy for PA6. By optimizing the ratio of each flame retardant, the resulting composites exhibit superior flame-retardant performance, offering new insights into the flame-retardant modification of engineering plastics and the design of multi-component systems.</p>\u0000 </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"32 5","pages":"1193-1209"},"PeriodicalIF":4.0,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Poly(Vinyl Alcohol)/Straw Composite Films With High Performance Prepared by Solid-State Shear Milling and Thermal Blowing","authors":"Keyi Pian,&nbsp;Dawei Xu,&nbsp;Li Li,&nbsp;Qi Wang","doi":"10.1002/vnl.70089","DOIUrl":"https://doi.org/10.1002/vnl.70089","url":null,"abstract":"<div>\u0000 \u0000 <p>Straw, derived from agricultural residues, is a valuable biomass resource. As the typical cellulose-based biomass material, the strong intermolecular hydrogen bonds render the straw infusible, encountering the problem in utilization on scale. In this study, polyvinyl alcohol (PVA), as an environment-friendly polymer with good water solubility, was adopted to mix with straw, combining solid-state shear milling (S³M) and thermal blowing technologies to achieve the high-performance composite film. Based on the powerful shearing action, S³M could destroy the inherent hydrogen-bonded network of the straw and enable the stronger interaction with PVA, thereby improving interfacial compatibility and promoting the homogeneous dispersion of straw within the PVA matrix. The blowing flow field affected the crystallization and molecular orientation of the blown film. The composite film with 10 wt% straw content and blow-up ratio of three exhibited exceptional tensile strength (35.6 MPa), elongation at break (276.4%), oxygen permeability coefficient of 1.96 × 10⁻¹⁷ cm³·cm/(cm²·s·Pa), better thermal stability, excellent ultraviolet barrier property, water solubility, and soil absorption capacity. It makes good use of waste straw and offers a promising route toward fabricating PVA-based composites for eco-friendly packaging applications.</p>\u0000 </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"32 5","pages":"1224-1236"},"PeriodicalIF":4.0,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}