{"title":"纳米氧化铝增强柠檬酸交联聚乙烯醇薄膜的制备及其拉伸性能","authors":"Ankjeet Sinha, A. V. Ullas","doi":"10.1002/vnl.22049","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <p>Poly(vinyl alcohol) is widely used in many industrial applications due to its attractive physico-chemical properties. However, water solubility and limited mechanical strength may sometimes restrict its usage. In the present study, an attempt has been made to improve the mechanical properties of the poly(vinyl alcohol) films, particularly the tensile strength, the percentage elongation and Young's modulus. Poly(vinyl alcohol) films were prepared by solution casting. Citric acid is used as a crosslinker and nano-alumina (0.1–1% w/w) has been added as reinforcement in the crosslinked matrix. Compared to uncrosslinked films, the films containing citric acid demonstrate an increase of ~10% and ~38% in the tensile strength and modulus, respectively. Nano-alumina acted as a suitable reinforcement and enhanced the tensile strength and modulus of crosslinked film by ~20% and ~27%, respectively, at 0.3% (w/w) loading. Uncrosslinked film dissolved in distilled water whereas the crosslinked films underwent swelling which reduced with the addition of nano-alumina. Crosslinked poly(vinyl alcohol) films reinforced with nano-alumina thus possess superior properties compared to both uncrosslinked and crosslinked films. The crosslinked nanocomposite films could find immense use as a food packaging material or in making membranes for water desalination.</p>\n </section>\n \n <section>\n \n <h3> Highlights</h3>\n \n <div>\n <ul>\n \n <li>Poly(vinyl alcohol) chemically crosslinked by citric acid.</li>\n \n <li>Nano-alumina added as reinforcement in crosslinked poly(vinyl alcohol) film.</li>\n \n <li>Swelling studies conducted on crosslinked nanocomposite films.</li>\n \n <li>Tensile testing results showing the supremacy of crosslinked nanocomposite films over uncrosslinked and crosslinked pure film.</li>\n </ul>\n </div>\n </section>\n </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"30 1","pages":"294-300"},"PeriodicalIF":3.8000,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preparation and Tensile Properties of Citric Acid Crosslinked Poly(vinyl alcohol) films reinforced with Nano-Alumina\",\"authors\":\"Ankjeet Sinha, A. V. Ullas\",\"doi\":\"10.1002/vnl.22049\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <p>Poly(vinyl alcohol) is widely used in many industrial applications due to its attractive physico-chemical properties. However, water solubility and limited mechanical strength may sometimes restrict its usage. In the present study, an attempt has been made to improve the mechanical properties of the poly(vinyl alcohol) films, particularly the tensile strength, the percentage elongation and Young's modulus. Poly(vinyl alcohol) films were prepared by solution casting. Citric acid is used as a crosslinker and nano-alumina (0.1–1% w/w) has been added as reinforcement in the crosslinked matrix. Compared to uncrosslinked films, the films containing citric acid demonstrate an increase of ~10% and ~38% in the tensile strength and modulus, respectively. Nano-alumina acted as a suitable reinforcement and enhanced the tensile strength and modulus of crosslinked film by ~20% and ~27%, respectively, at 0.3% (w/w) loading. Uncrosslinked film dissolved in distilled water whereas the crosslinked films underwent swelling which reduced with the addition of nano-alumina. Crosslinked poly(vinyl alcohol) films reinforced with nano-alumina thus possess superior properties compared to both uncrosslinked and crosslinked films. The crosslinked nanocomposite films could find immense use as a food packaging material or in making membranes for water desalination.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Highlights</h3>\\n \\n <div>\\n <ul>\\n \\n <li>Poly(vinyl alcohol) chemically crosslinked by citric acid.</li>\\n \\n <li>Nano-alumina added as reinforcement in crosslinked poly(vinyl alcohol) film.</li>\\n \\n <li>Swelling studies conducted on crosslinked nanocomposite films.</li>\\n \\n <li>Tensile testing results showing the supremacy of crosslinked nanocomposite films over uncrosslinked and crosslinked pure film.</li>\\n </ul>\\n </div>\\n </section>\\n </div>\",\"PeriodicalId\":17662,\"journal\":{\"name\":\"Journal of Vinyl & Additive Technology\",\"volume\":\"30 1\",\"pages\":\"294-300\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2023-09-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Vinyl & Additive Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/vnl.22049\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Vinyl & Additive Technology","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/vnl.22049","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Preparation and Tensile Properties of Citric Acid Crosslinked Poly(vinyl alcohol) films reinforced with Nano-Alumina
Poly(vinyl alcohol) is widely used in many industrial applications due to its attractive physico-chemical properties. However, water solubility and limited mechanical strength may sometimes restrict its usage. In the present study, an attempt has been made to improve the mechanical properties of the poly(vinyl alcohol) films, particularly the tensile strength, the percentage elongation and Young's modulus. Poly(vinyl alcohol) films were prepared by solution casting. Citric acid is used as a crosslinker and nano-alumina (0.1–1% w/w) has been added as reinforcement in the crosslinked matrix. Compared to uncrosslinked films, the films containing citric acid demonstrate an increase of ~10% and ~38% in the tensile strength and modulus, respectively. Nano-alumina acted as a suitable reinforcement and enhanced the tensile strength and modulus of crosslinked film by ~20% and ~27%, respectively, at 0.3% (w/w) loading. Uncrosslinked film dissolved in distilled water whereas the crosslinked films underwent swelling which reduced with the addition of nano-alumina. Crosslinked poly(vinyl alcohol) films reinforced with nano-alumina thus possess superior properties compared to both uncrosslinked and crosslinked films. The crosslinked nanocomposite films could find immense use as a food packaging material or in making membranes for water desalination.
Highlights
Poly(vinyl alcohol) chemically crosslinked by citric acid.
Nano-alumina added as reinforcement in crosslinked poly(vinyl alcohol) film.
Swelling studies conducted on crosslinked nanocomposite films.
Tensile testing results showing the supremacy of crosslinked nanocomposite films over uncrosslinked and crosslinked pure film.
期刊介绍：
Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.
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