1.

Influence of adsorbed carboxymethyl cellulose on the cotton fibre adsorption capacity for cationic surfactant.

The adsorption of N-cetylpyridinium chloride (CPC) from an aqueous solution onto the CMC-modified fibres was measured using UV-spectrometric determination of the surfactant concentration in the solution. Adsorption onto the cotton fibres was studied in a weakly basic environment (pH 8.5) where cotton fibres are negatively charged and the CPC ion is positively charged. Modification of the fibres by adsorption of CMC introduces new carboxyl groups onto the fibre surfaces, thereby increasing the adsorption capacity of the fibres for CPC.

COBISS.SI-ID: 11647766

2.

FRAS ZEMLJIČ, Lidija, STENIUS, Peer, LAINE, Janne, STANA-KLEINSCHEK, Karin. Topochemical modification of cotton fibres with carboxymethyl cellulose.

The article decribes the functionalization of cellulose fibres using carboxymethyl cellulose. The influence of this adsorption onto charge amount was analysed. The adsorbed charge correlated linearly with the amount of CMC adsorbed. The total charge of the cotton fibres could be increased by more than 50% by adsorption of CMC

COBISS.SI-ID: 11942166

3.

Characterization of cotton fibres modified by carboxymethyl cellulose.

Description regarding functionalization of fibres by CMC is given. The influence of functionalization onto final fibre mechanical properties was discussed.The modified fibres appeared to have better mechanical properties. It is expected that this modification procedure can be used for practical applications.

COBISS.SI-ID: 10715414

4.

Functionalisation of cellulose surface.

Several advanced techniques for functionalization of fibres were introduced. Fibres were functionalised using two polysaccharides, chitosan and carboxymethyl cellulose. Those fibres were physico-chemically characterised.

COBISS.SI-ID: 13379094

5.

The effect of adsorbed carboxymethyl cellulose on the cotton fibre adsorption capacity for surfactant.

The adsorption of N-cetylpyridinium chloride (CPC) from an aqueous solution onto the CMC-modified fibres was measured using UV-spectrometric determination of the surfactant concentration in the solution. Modification of the fibres by adsorption of CMC introduces new carboxyl groups onto the fibre surfaces, thereby increasing the adsorption capacity of the fibres for CPC. The initial rate of adsorption of CPC increased proportionally with the amount of charge; however, this rate slowed down at high degrees of coverage on fibres with a high charge.

COBISS.SI-ID: 11043606