کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7215525 | 1469515 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High strength poly(vinyl alcohol)/poly(acrylic acid) cross-linked nanofibrous hybrid composites incorporating nanohybrid POSS
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: High strength poly(vinyl alcohol)/poly(acrylic acid) cross-linked nanofibrous hybrid composites incorporating nanohybrid POSS High strength poly(vinyl alcohol)/poly(acrylic acid) cross-linked nanofibrous hybrid composites incorporating nanohybrid POSS](/preview/png/7215525.png)
چکیده انگلیسی
A novel system for enhancing the mechanical properties of PVA/PAA cross-linked nanofibrous hybrid composites incorporating POSS was developed in this study. An electrospinning and followed by simple heat-treatment strategy was used to prepare nanofibrous PVA/PAA composite hydrogels. The mechanical properties have been dramatically improved by a heat-treatment as well as an incorporated nanohybrid POSS. The PVA/PAA composite nanofibers exhibited 2.3 times higher tensile strength and 4.4 times higher Young's modulus after heat-treatment, suggesting that the elasticity of these nanofibers was reinforced by the formation of chemically cross-linked networks. Moreover, compared to the heat-treated PVA/PAA nanofibers without POSS, the PVA/PAA/POSS hybrid nanofibers (POSS content â¼0.6 wt.%) showed 3.3 times improvement in Young's modulus and 2.0 times increase in tensile strength after heat-treatment at 160 °C for 30 min. This suggests that the elasticity of these nanofibers were dramatically reinforced by the incorporated POSS nanoparticles as well as chemically cross-linked networks via an ester bond formation between OH groups of PVA and COOH groups in PAA.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 110, 6 April 2015, Pages 111-117
Journal: Composites Science and Technology - Volume 110, 6 April 2015, Pages 111-117
نویسندگان
Eun-Sook Lee, Danyun Lei, Kesavan Devarayan, Byoung-Suhk Kim,