Premium
Plasma‐graft polymerization of vinyl monomers with reactive groups onto a surface of poly( p ‐phenylene terephthalamide) fiber
Author(s) -
Yamada Kenji,
Haraguchi Toshihide,
Kajiyama Tisato
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19960613)60:11<1847::aid-app8>3.0.co;2-l
Subject(s) - materials science , glycidyl methacrylate , polymerization , polymer chemistry , composite material , epoxy , curing (chemistry) , covalent bond , polymer , monomer , methacrylate , grafting , chemistry , organic chemistry
The mechanical properties of a fiber‐reinforced plastic are influenced by the adhesion between a reinforcing fiber and a matrix resin. In this work we tried to obtain strong adhesion between Kevlar 49 TM yarn and a matrix resin through the formation of covalent bonds. Reactive groups were introduced onto a surface of the yarn by means of plasma‐graft polymerization and then reacted with an epoxy resin/curing agent mixture as a matrix resin to form covalent bonds. Glycidyl methacrylate and acrylamide were used as mono‐mers for plasma‐graft polymerization. The degree of grafting was increased with increasing polymerization time. The grafted yarns enclosed with diglycidal ether of bisphenol‐A/tri‐ethylenetetramine 2.2 : 1 mixture were pulled out to obtain pull‐out force after curing. The pull‐out force increased with increasing degrees of grafting. The cóvalent bonds formed between the graft polymer and the matrix resin result in an increment of pull‐out force. © 1996 John wiley & Sons, Inc.