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Modification of polymers by protein hydrolysate - A way to biodegradable materials

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dc.title Modification of polymers by protein hydrolysate - A way to biodegradable materials en
dc.contributor.author Saha, Nabanita
dc.contributor.author Zatloukal, Martin
dc.contributor.author Sáha, Petr
dc.relation.ispartof Polymers for Advanced Technologies
dc.identifier.issn 1042-7147 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2003-11/2003-12
utb.relation.volume 14
utb.relation.issue 11-12
dc.citation.spage 854
dc.citation.epage 860
dc.event.title 2nd International Conference on Modification, Degradation and Stabilization of Polymers
dc.event.location Budapest
utb.event.state-en Germany
utb.event.state-cs Německo
dc.event.sdate 2002
dc.type article
dc.type conferenceObject
dc.language.iso en
dc.publisher John Wiley & Sons, Ltd. en
dc.identifier.doi 10.1002/pat.406
dc.relation.uri http://onlinelibrary.wiley.com/doi/10.1002/pat.406/abstract
dc.subject biodegradace cs
dc.subject biopolymer cs
dc.subject blend cs
dc.subject mLLDPE cs
dc.subject hydrolyzát bílkoviny cs
dc.subject biodegradation en
dc.subject biopolymer en
dc.subject blend en
dc.subject mLLDPE en
dc.subject protein hydrolysate en
dc.description.abstract The increasing use of plastics and their non-biodegradability have raised environmental awareness and hence the need for the development of environmently friendly degradable materials. One of the ways to reach this goal is via the modification of polymer with starch, cellulose, protein and other water-soluble materials. This can also be achieved by protein hydrolysate (HP) which is a biopolymer isolated from the chrome-tanned solid leather waste of the tanning industry by enzymatic hydrolysis. An investigation on the modification of metallocene-based linear-low-density polyethylene (mLLDPE) with HP is reported. It is interesting to note that HP easily blends with mLLDPE but like other biopolymers it also reduces the original mechanical properties of the mLLDPE. Modification of the latter with 10% HP does not have much effect on the physical, mechanical and rheological behaviour. About 35% biodegradation is observed when the polymer is modified with 20% HP and about 50% biodegradation is found in the case of polymer modified with 40% HP by Aspergillus oryzae (F-172) under controlled laboratory conditions, at a temperature of 25degreesC and after a period of 21 days incubation in malt extract media. Although polymer films with 40% HP have shown better performance in biodegradation, the mechanical strength properties, however, are rather poor in this case. The optimum polymer film composition for modification of mLLDPE is 20% HP, which retains both an acceptable range of mechanical strength properties and biodegradability behaviour. Copyright (C) 2003 John Wiley Sons, Ltd. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1002003
utb.identifier.rivid RIV/70883521:28110/03:63501625
utb.identifier.obdid 11553106
utb.identifier.obdid 43865496
utb.identifier.scopus 2-s2.0-0442328569
utb.identifier.wok 000188503000019
utb.source d-wok
dc.date.accessioned 2011-08-09T07:34:28Z
dc.date.available 2011-08-09T07:34:28Z
utb.contributor.internalauthor Saha, Nabanita
utb.contributor.internalauthor Zatloukal, Martin
utb.contributor.internalauthor Sáha, Petr
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