{"title":"以超临界CO2和水为共发泡剂研制绝缘缓冲用轻质硬质聚氯乙烯泡沫","authors":"Hui Zhang, Xin Zhang, Chunshuai Lu, Shibao Wen, Zhen Yu, Zhenxiu Zhang","doi":"10.1002/vnl.22209","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <p>In this work, polyvinyl chloride (PVC) was plasticized using an epoxy silane coupling agent (KH560), subsequently foamed with supercritical CO<sub>2</sub> and water, resulting in lightweight, insulating, and cushioning rigid PVC foam. When the catalyst-to-KH560 ratio was 1, the foam exhibited the highest thermal and mechanical properties. The triethanolamine (TEOA) catalytic system produced more uniform cells (20–25 μm) than NaHSO<sub>3</sub>. When there was 5 phr KH560, the stiffness and compressive strength of the foam increased by 8 × 10<sup>5</sup> N/m and 1.0 MPa. When 15 phr KH560 was added, the foam density and conductivity were as low as 76.1 kg/m<sup>3</sup> and 36.3 mW/m K, respectively. Additionally, the foam absorbed accounts for 76%–87% of the total impact energy. This work presented an eco-friendly and efficient method for preparing rigid PVC foam with thermal insulation and impact cushioning properties.</p>\n </section>\n \n <section>\n \n <h3> Highlights</h3>\n \n <div>\n <ul>\n \n <li>Supercritical CO<sub>2</sub> and water co-foaming were used to prepare rigid PVC foam.</li>\n \n <li>The density was as low as 76.1 kg/m<sup>3</sup>.</li>\n \n <li>The thermal conductivity was 36.3 mW/m K.</li>\n \n <li>The impact energy absorption rate ranging from 76% to 87%.</li>\n </ul>\n </div>\n </section>\n </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"31 4","pages":"810-823"},"PeriodicalIF":3.6000,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Development of lightweight rigid polyvinyl chloride foam for insulation and cushioning using supercritical CO2 and water as co-foaming agents\",\"authors\":\"Hui Zhang, Xin Zhang, Chunshuai Lu, Shibao Wen, Zhen Yu, Zhenxiu Zhang\",\"doi\":\"10.1002/vnl.22209\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <p>In this work, polyvinyl chloride (PVC) was plasticized using an epoxy silane coupling agent (KH560), subsequently foamed with supercritical CO<sub>2</sub> and water, resulting in lightweight, insulating, and cushioning rigid PVC foam. When the catalyst-to-KH560 ratio was 1, the foam exhibited the highest thermal and mechanical properties. The triethanolamine (TEOA) catalytic system produced more uniform cells (20–25 μm) than NaHSO<sub>3</sub>. When there was 5 phr KH560, the stiffness and compressive strength of the foam increased by 8 × 10<sup>5</sup> N/m and 1.0 MPa. When 15 phr KH560 was added, the foam density and conductivity were as low as 76.1 kg/m<sup>3</sup> and 36.3 mW/m K, respectively. Additionally, the foam absorbed accounts for 76%–87% of the total impact energy. This work presented an eco-friendly and efficient method for preparing rigid PVC foam with thermal insulation and impact cushioning properties.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Highlights</h3>\\n \\n <div>\\n <ul>\\n \\n <li>Supercritical CO<sub>2</sub> and water co-foaming were used to prepare rigid PVC foam.</li>\\n \\n <li>The density was as low as 76.1 kg/m<sup>3</sup>.</li>\\n \\n <li>The thermal conductivity was 36.3 mW/m K.</li>\\n \\n <li>The impact energy absorption rate ranging from 76% to 87%.</li>\\n </ul>\\n </div>\\n </section>\\n </div>\",\"PeriodicalId\":17662,\"journal\":{\"name\":\"Journal of Vinyl & Additive Technology\",\"volume\":\"31 4\",\"pages\":\"810-823\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2025-03-04\",\"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://4spepublications.onlinelibrary.wiley.com/doi/10.1002/vnl.22209\",\"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://4spepublications.onlinelibrary.wiley.com/doi/10.1002/vnl.22209","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}
Development of lightweight rigid polyvinyl chloride foam for insulation and cushioning using supercritical CO2 and water as co-foaming agents
In this work, polyvinyl chloride (PVC) was plasticized using an epoxy silane coupling agent (KH560), subsequently foamed with supercritical CO2 and water, resulting in lightweight, insulating, and cushioning rigid PVC foam. When the catalyst-to-KH560 ratio was 1, the foam exhibited the highest thermal and mechanical properties. The triethanolamine (TEOA) catalytic system produced more uniform cells (20–25 μm) than NaHSO3. When there was 5 phr KH560, the stiffness and compressive strength of the foam increased by 8 × 105 N/m and 1.0 MPa. When 15 phr KH560 was added, the foam density and conductivity were as low as 76.1 kg/m3 and 36.3 mW/m K, respectively. Additionally, the foam absorbed accounts for 76%–87% of the total impact energy. This work presented an eco-friendly and efficient method for preparing rigid PVC foam with thermal insulation and impact cushioning properties.
Highlights
Supercritical CO2 and water co-foaming were used to prepare rigid PVC foam.
The density was as low as 76.1 kg/m3.
The thermal conductivity was 36.3 mW/m K.
The impact energy absorption rate ranging from 76% to 87%.
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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