Microporous polypropylene fibers containing fine particles of poly(styrene-co-divinylbenzene) or poly(glycidylmethacrylate-co-divinylbenzene)

✍ Scribed by Yukio Mizutani; Satoshi Nagō; Isao Masada

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 226 KB
• Volume: 74
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19991017)74:3<722::aid-app26>3.0.co;2-5

✦ Synopsis

Styrene-divinylbenzene or glycidylmethacrylate-divinyl-benzene were copolymerized in powdery polypropylene suspended in water and the resultant polymer composites were blended with a definite amount of polypropylene. The products consisted of polypropylene and the fine particles of the copolymer, which were uniformly dispersed in polypropylene phase. These products were melt-spun to prepare polypropylene fibers containing the fine particles and then the fibers were stretched to make the fibers microporous. Some properties were estimated: porosity, 1.6 -19.7%; average pore size, 0.004 -0.009 m; and specific surface, 9 -137 m 2 /g.