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[en] Radiation-induced grafting tests were done on single wool fibres. Different vinyl monomers were used for this purpose and they were grafted in twenty different solvents which were selected for their swelling effiency and solvent parameters. The tests were done once with and once without the addition of water. The presence of water causes the polymer uptake to increase considerably. Formic acid/methanol and methanol were found to be the most suitable solvent systems, as they have the highest hydrogen-bond interaction effiency. The moisture uptake of wool depends on the hydrophily and hydrophoby of the grafted polymers. The single-fibre tests serve as a basis for analogous grafting tests on wool fabrics. The permanent- press was improved by graftng with hydrophoric polymers and polymers with a high glass-transition temperature
[af]
Stralingsgeinduseerde hegtoetse is op afsonderlike wolvesels uitgevoer. Verskillende vinielmonomere is vir hierdie doel gebruik en hulle is in twintig verskillende oplosmiddels geheg wat vir hulle swel- en oplosvermoe gekies is. Die toetse is beide in die teenwoordigheid en afwesigheid van water uitgevoer. Die teenwoordigheid van water veroorsaak dat die polimeeropname aansienlik verhoog word. Daar is bevind dat metanol en mieresuur-metanol die mees geskikte oplosmiddels met die hoogste waterstofbindingvermoe is. Die vogopname van wol is van die hidrofiliese en hidrofobiese eienskappe van die gehegte polimere afhanklik. Die toetse met afsonderlike vesels dien as grondslag vir die analoe hegtoetse op wolprodukte. Die permanente plooie is deur hegting met hidrofobiese polimere en polimere met 'n hoe glasoorgangstemperatuur verbeterSource
Oct 1979; 17 p; ISBN 0 86960 702 2; 