Effects of acid diffusibility and affinity to cellulose on strength loss of polycarboxylic acid crosslinked fabrics. (25th June 2016)

• Record Type: Journal Article
• Authors: Ji, Bolin; Zhao, Cunyi; Yan, Kelu; Sun, Gang
• Is Part Of: Carbohydrate polymers. Volume 144(2016)
• Page Start: 282
• Page End: 288
• Publication Date: 2016-06-25
• Subjects: Molecular size -- Diffusibility -- Affinity -- Anti-wrinkle -- Strength loss; Succinic acid (PubChem CID: 1110) -- Dichloroacetic acid (PubChem CID: 6597) -- Benzophenone-3, 3′, 4, 4′-tetracarboxylic dianhydride (PubChem CID: 75498) -- 1, 2, 3, 4-Butanetetracarboxylic acid (PubChem CID: 15560) -- Sodium hypophosphite monohydrate (PubChem CID: 23708894) -- 2, 4, 6-Trihydroxybenzoic acid monohydrate (PubChem CID: 2723793) -- 3, 4-Dihydroxybenzoic acid (PubChem CID: 72) -- Bromophenol blue (PubChem CID: 8272) -- Collodion (PubChem CID: 44135439); Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2016.02.036
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: BPTCA achieves similar WRA with less strength loss compared with BTCA. Molecular sizes of the acids have an effect on the strength loss based on diffusion. The affinity of the acids to cellulose shows effects on the strength loss. HSP can be used to characterize the affinity of an acid to cellulose. Larger HSP distance of an acid to cellulose is beneficial to the mechanical strength. Abstract: 1, 2, 3, 4-Butanetetracarboxylic acid (BTCA) imparts good anti-wrinkle property to cotton fabrics and results in significant strength loss due to cross-linking and acid degradation of cellulose simultaneously. However, benzophenone-3, 3′, 4, 4′- tetracarboxylic acid (BPTCA), an aromatic acid, crosslinks cellulose effectively but causes less strength loss to the products under similar conditions. The difference in damages to cellulose fibers was analyzed by using diffusibility and corresponding affinity of the acids to cellulose fibers, which were estimated by their molecular sizes and Hansen solubility parameters (HSP). Both experimental results and theoretical speculations revealed consistent agreement, indicating that smaller acid molecules could diffuse into cellulose fiber more rapidly and deeply, resulting in more acid degradation. Besides, the aliphatic acid such as BTCA has higher molecular affinity than BPTCA to cellulose, causing additional more degradation of cellulose. Both factors are potential reasons of the observed more severe tensile strength loss of the BTCA treated cotton fabrics.