The Production of Rayon from Alginic Acid*

Speakman, J. B.; Chamberlain, N. H.

doi:10.1111/j.1478-4408.1944.tb02258.x

Cited by 46 publications

(11 citation statements)

References 10 publications

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“…1 Because of their tendency to dissolve under alkali conditions, alginate fibers had limited applications as a conventional textile material. Since the 1980s, however, alginate fibers have become widely used in the wound management industry as a novel wound management material.…”

Section: Introductionmentioning

confidence: 99%

The conversion of calcium alginate fibers into alginic acid fibers and sodium alginate fibers

Qin

AiXiang

2006

J of Applied Polymer Sci

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Alginate is a natural polymer extracted from brown seaweeds. Over the last two decades, alginate fibers have become well established in the wound management industry where their ion exchange and gel forming abilities are particularly useful in the treatment for exuding wounds. Alginate fibers are commonly made by extruding sodium alginate solution into a calcium chloride bath, producing calcium alginate fibers. To improve the gelling ability and the absorption capacity of calcium alginate fibers, this study used hydrochloric acid to convert calcium alginate fibers into alginic acid fibers, which was further converted into sodium alginate fibers by treating the fibers with sodium hydroxide in organic solvent. Results showed that alginic acid and sodium alginate fibers and fabrics can be readily made by treating the calcium alginate fibers and fabrics, respectively, with hydrochloric acid and sodium hydroxide. Improved gel blocking properties and absorption capacities were obtained with the sodium alginate fibers.

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Section: Introductionmentioning

confidence: 99%

The conversion of calcium alginate fibers into alginic acid fibers and sodium alginate fibers

Qin

AiXiang

2006

J of Applied Polymer Sci

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“…Dry brown algae generally contain about 20% alginic acid. As early as 1944, Speakman and Chamberlain reported on the production process of alginate fiber for the first time . In 1946, Smith first proposed alginic acid as an effective hemostatic agent .…”

Section: Hemostasis At Nanoscalementioning

confidence: 99%

Recent Advances in Hemostasis at the Nanoscale

Wang

Liu

Sui

et al. 2019

Adv Healthcare Materials

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Rapid and effective hemostatic materials have received wide attention not only in the battlefield but also in hospitals and clinics. Traditional hemostasis relies on materials with little designability which has many limitations. Nanohemostasis has been proposed since the use of peptides in hemostasis. Nanomaterials exhibit excellent adhesion, versatility, and designability compared to traditional materials, laying a good foundation for future hemostatic materials. This review first summarizes current hemostatic methods and materials, and then introduces several cutting‐edge designs and applications of nanohemostatic materials such as polypeptide assembly, electrospinning of cyanoacrylate, and nanochitosan. Particularly, their advantages and working mechanisms are introduced. Finally, the challenges and prospects of nanohemostasis are discussed.

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“…During the fiber making process, sodium alginate is dissolved in water and chitosan is dissolved in aqueous acetic acid solution to prepare their respective spinning solutions, which are then extruded via spinneret into coagulation baths containing CaCl 2 and NaOH respectively to precipitate the two polymers into fibers [7,2]. Upon washing, stretching and drying, alginate and chitosan fibers can be made with tensile properties similar to conventional viscose fibers, which can be processed in the many textile processes such as yarn spinning, weaving, knitting, and nonwoven [8,1].…”

Section: Fiber Productionmentioning

confidence: 99%

Marine Bioactive Fibers: Alginate and Chitosan Fibers-A Critical Review

Qin¹,

Deng²,

Hao³

et al. 2017

JTEFT

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Alginate and chitosan are two marine natural polymers with unique structures and properties. Alginate is a polymeric acid, whilst chitosan is a polymeric amine. Both polymers can be made into fibers through the wet-spinning process. This article reviews the novel properties of alginate and chitosan, and compares the functional performances of the two fibers as novel textile materials. The principal applications of alginate and chitosan fibers are also reviewed.

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The Production of Rayon from Alginic Acid*

Cited by 46 publications

References 10 publications

The conversion of calcium alginate fibers into alginic acid fibers and sodium alginate fibers

The conversion of calcium alginate fibers into alginic acid fibers and sodium alginate fibers

Recent Advances in Hemostasis at the Nanoscale

Marine Bioactive Fibers: Alginate and Chitosan Fibers-A Critical Review

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