Review Improvement of Polypropylene Properties by Irradiation/Grafting and Other Modifications | ||||
| Egyptian Journal of Chemistry | ||||
| Article 4, Volume 62, Issue 1, January 2019, Page 29-48 PDF (2.89 MB) | ||||
| Document Type: Review Articles | ||||
| DOI: 10.21608/ejchem.2018.4284.1382 | ||||
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| Authors | ||||
Samiha Mahmoud Gawish   1; Sayeda El-Sayed Mosleh 2; Ameera Ramadan3
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| 1Textile Research Division, National Research Cetre | ||||
| 2Textile Division ,,National Research Centre, Dokki, Cairo | ||||
| 3Textile Division , National Research Centre ,Dokki, Cairo Egypt | ||||
| Abstract | ||||
| In Egypt, at Port-Said there is a great company producing polypropylene chips from propylene gas ( and a catalyst) , a product of petroleum. These are melt spinning into yarns to produce woven or non - woven fabrics. Polypropylene (PP) is a cheap fabric, bearing chemical resistance and excellent mechanical properties . PP is hydrophobic in nature , inactive synthetic fabric due to the absence of reactive functional groups in the molecular structure, thus preventing its dyeing For this reason , PP fibers are modified by irradiation methods to form free radical centers onto the surface and graft selected vinyl monomers . Different irradiation techniques are adopted involving plasma discharge, electron beams , ozone , UV, γ- rays and other modifications. PP is grafted with selected monomers including methacrylate derivatives such as ( 2N -Dimethyl amino ethyl methacrylate ,2N morpholino ethyl methacrylate , 2- ethyl methacrylate phosphoric acid , methyl methacrylate, 2- hydroxy ethyl methacrylate ) acrylic acid , styrene , chloro methyl styrene , vinyl acetate etc... The different variable factors affecting PP irradiation and grafting reactions are considered such as irradiation dose , storage time of irradiated fabric , monomer concentration , reaction time and temperature . Physical properties of grafted PP are studied for those containing tertiary amino or quaternized groups which improved the increase of moisture regain , melting point and enhancement affinity to dyeing by different classes of dyestuffs. Other important properties improvement include ion exchange capacity electrical conductivity , antistatic, insect repellent activity an antibacterial property . PP containing Ag, Zn, ZnO, TiO2 , Cu2O nano particles are antibacterial fabrics which are used as wound healing dressings. | ||||
| Keywords | ||||
| : Polypropylene; Irradiation; grafting; antistatic antibacterial; insect repellent and ion -exchanger properties | ||||
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