Details

Autor(en) / Beteiligte

• Bismark, Sarkodie
• Xun, Zhang
• Zhifeng, Zhu
• Charles, Frimpong
• William, Badoe
• Benjamin, Asinyo
• Ebenezer, Howard K.

Titel

Phosphorylation and Octenylsuccinylation of Acid‐Thinned Starch for Enhancing Adhesion on Cotton/Polyester Blend Fibers at Varied Temperature Sizing

Ist Teil von

• Starch - Stärke, 2019-01, Vol.71 (1-2), p.n/a

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2019

Quelle

Wiley Online Library - AutoHoldings Journals

Beschreibungen/Notizen

• In this study, amphiphilic starch prepared by phosphorylation and octenylsuccinylation is surveyed to identify its effect on the adhesion of starch to cotton/polyester blend fibers at different temperature. Acid‐thinned cornstarch (ATS) is phosphorylated and octenylsuccinylated with pentasodium triphosphate and 2‐octenylsuccinic anhydride, respectively, to improve upon adhesion to cotton/polyester blend fibers. Two series of amphiphilic starch samples with different levels of the substitution (DS) are derived for determining desirable level of starch modification in sizing. Amphiphilic starch paste shows strong adhesion to cotton/polyester blend fibers than ATS paste. It is found that the modification reduces the crystallinity, changed the morphology, improves moisture regain, alleviates the adverse influence of starch retrogradation, and improves adhesion to fibers and desizing efficiency. The adhesion of amphiphilic starch paste to cotton/polyester blend fibers at 60 °C is statistically higher than adhesion of ATS at 95 °C. The amphiphilic starch with a total DS of 0.06 shows the highest potential use for strong cotton/polyester blend warp sizing due to its good sizing properties. Phosphorylation and octenylsuccinylation of starch show an enhanced quality in adhesion and desizing efficiency of starch compared to cotton/polyester blend fibers. Amphiphilic starch has good adhesion of fibers at 95 oC, 80 oC, and 60 oC compared to acid‐thinned starch. The adhesion of amphiphilic starch paste to cotton/polyester blend fibers at 60 oC is statistically higher than adhesion of acid‐thinned starch at 95 oC.