Collagen fiber waterproofed during the spinning process

Pukhova, Z. I.; Vasil'ev, M.P.; Kotetskii, V. V.; Vol'f, L. A.

doi:10.1007/bf00545117

Cited by 1 publication

(2 citation statements)

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“…Studies exist regarding the effects of water absorption on mechanical properties11 as well as studies that determine water solubility5 of collagen films, but a subject literature search shows the absence of research on how to systematically improve water resistance of collagen films. One study, Pukhova et al12 publicized research done on increasing water resistance of collagen fibers during the spinning process by the use of Cr 2 O 3 . Literature search also showed a remarkable absence of consistent terminology.…”

Section: Introductionmentioning

confidence: 99%

“…Literature search also showed a remarkable absence of consistent terminology. In similar context, different terms are used such as water resistance,1, 13 water solubility,14–16 water absorption,10, 12 water repellence,14 or water permeability13, 17–19 but often not clearly defined. This study defines water resistance as the film's ability to resist dissolution in contact with water or to dissolve to a certain degree only.…”

Section: Introductionmentioning

confidence: 99%

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Improving the water resistance of biodegradable collagen films

Sommer¹,

Kunz²

2012

J of Applied Polymer Sci

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Although collagen‐based films have been successfully used for packaging in the meat industry, their potential as a replacement for synthetic packaging films in other industries has not yet been widely investigated. This may be due to the low water resistance of protein films. The objective of this study was to systematically improve water resistance in collagen‐based films and to investigate the influence of different crosslinking agents and crosslinker concentration levels. In this study, the film's water resistance was determined gravimetrically as well as by applying the Sircol™ Protocol. Although the reference collagen film produced without any crosslinking agents showed to have almost completely disintegrated after 2 h at 80°C, it was possible to generate chemically crosslinked films, which stayed intact after 2 h at 80°C and even maintained water resistance after 8 h at 60°C. The results of this study showed that thermal crosslinking leads to weaker bonds than the chemically crosslinking. Both assay methods for the determination of the water resistance yielded almost identical curves, except for films with an added plasticizer, clarifying that the Sircol™ protocol is not suitable to record data as a result of the dissipation of the plasticizer. Furthermore, study results indicated that the water resistance strongly depends on the amount of added crosslinker and reaches a maximum at a concentration of 10% w/w, whereas compostability was nearly 90% at 58°C within 38 days for a chemically crosslinked collagen film plasticized with lecithin. However, increased crosslinking significantly decreased the enzymatic degradability of the investigated films. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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Section: Introductionmentioning

confidence: 99%