Studies on acrylic acid–grafted polyester fabrics by electron beam preirradiation method. I. Effects of process parameters on graft ratio and characterization of grafting products

Abstract

Polyester fabrics were preirradiated by electron beam in air and then grafted by acrylic acid (AA) without excluding oxygen. Effects of preirradiation dose, monomer concentration, reaction temperature, storage time, sulfuric acid, and Mohr's salt were investigated in detail and are discussed. The results suggest that it is practicable and effective to graft AA onto polyester fabrics by means of the preirradiation method. FTIR and SEM were used to characterize AA-grafted polyester fabrics. A new band appearing at 1546 cm Ϫ1 in the FTIR spectrum implies that AA was indeed introduced onto PET macromolecules. Changes of the diameter and the surface structure of fabric fibers presented in SEM micrographs make it clear that a layer of grafted poly(acrylic acid) was formed on the surface of these PET fibers.

Surface modification of PET films by atmospheric pressure plasma-induced acrylic acid inverse emulsion graft polymerization

“…As the graft ratio increased, FTIR spectra of the films grafted with AA inverse emulsion exhibited increased absorbance signal at 2500-3600 cm − 1 and 1546 cm − 1 , which are assigned to stretching vibration of O-H and asymmetrical stretching vibration of COO − respectively. [26,27]. The appearance of the new band suggested that AA was indeed introduced onto the PET macromolecular backbone.…”

Hydrophilic modification of PET fabric via continuous photografting of acrylic acid (AA) and hydroxyethyl methacrylate (HEMA)

“…Uchida et al have studied the graft polymerization of methacrylic acid onto PET film by UV irradiation, and then the grafted PET film was complexed with Cu 2+ to improve its antibacterial properties [6]. They also grafted acrylic acid (AA) onto the PET fabric by EB pre-irradiation method [7]. Laser-induced AA grafting onto PET film for platelet adhesion and plasma-induced graft polymerization of AA onto PET film for human smooth muscle cell growth were studied by Mirzadeh et al [8] and Gupta et al [9], respectively.…”

Studies on grafting of acrylic acid onto polypropylene melt‐blown nonwovens induced by electron‐beam preirradiation

“…Graft copolymerization can be achieved by chemical initiators,1–3 ultraviolet light,4–6 plasma,7–9 or ionizing radiation 10–13. Radiation grafting is one of the most promising modification methods because of its unmatched advantages, for example, large penetration in polymer substrate, rapid and uniform formation of active sites for initiating grafting throughout the substrate, being free of chemical initiator, and so forth 14. When polymers are subjected to electron beam (EB) irradiation, the trapped radical or macromolecular peroxides and hydroperoxides that are capable of initiating graft copolymerization reaction are formed.…”