科研之友
微信
新浪微博
Facebook
分享链接
摘要
We demonstrate a novel polymer blend derived from a hydrophobic poly(vinyl acetate) (PVAC) and a hydrophilic poly(acrylic acid) (PAA) that forms a porous fiber in a single step by melt spinning. Polymer fibers of PAA, PVAC, and fibers made of 40:60, 50:50 and 60:40 PVAC/PAA blends were melt-spun and examined with the use of transmitted light microscopy and environmental scanning electron microscopy. The morphology of melt-spun fibers made from PAA and from PVAC were solid fibers. Fibers melt-spun from the polymer blends of 40%, 50% and 60% PVAC with PAA making the remainder of 100% consisted of a honeycombed, porous fiber structure with some internal cell to cell interconnectivity. It is also noteworthy to mention that fibers melt-spun from PAA only and from PVAC only were very fragile and were difficult to make. However, fibers from the novel blend of PAA and PVAC were spinnable and formed porous fibers that maintained their fiber integrity.
- 出版日期2009
