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Only a small fraction is for textile coatings
in indu dust stry: y: ec eco-fr frie iendly dly an and d - - PowerPoint PPT Presentation
in indu dust stry: y: ec eco-fr frie iendly dly an and d - - PowerPoint PPT Presentation
Ne New c w chal alle lenges es fo for tex texti tile le in indu dust stry: y: ec eco-fr frie iendly dly an and d bio iobas ased ed co coat ated ed te text xtil iles es David De Smet Only a small fraction is for
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Outline
₋ Introduction ₋ Results ₋ Conclusions and outlook
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Outline
₋ Introduction ₋ Results ₋ Conclusions and outlook
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Challenge
₋ ECHA limiting use of several chemicals ₋ “Bio, eco, natural and environmentally friendly” consciousness ₋ Roughly 50 years of both oil and natural gas left (BP Statistical Review of World Energy 2016)
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Opportunity
₋ Developing eco-friendly and/or biobased solutions
₋ Eco-friendly repellent textiles ₋ 2K biobased PU coating free of solvent ₋ Biobased additives
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Outline
₋ Introduction ₋ Results ₋ Conclusions and outlook
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Duratex
₋ Ecofriendly water and oil repellent and antimicrobial textile ₋ Transcollaboration
₋ Centexbel (VL) ₋ UCL and Certech (WL) ₋ Ensait and CETI (FR)
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Fluorfree superhydrophobic finish
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Superomniphobic C6 and C8 free formulation
Water (10 µl) contact/ roll-off angle (°) Olive oil (10 µl) contact/ roll-off angle (°)
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2K Biobased PU coating
Coating additive initial washing (20x 40°C) Hydrolysis (70°C, 95% R.H.; 3 weeks) weldable A adhesion promotor ≥1000 ≥1000 ≤10 no B adhesion promotor ≥1000 ≥1000 ≤10 no D adhesion promotor ≥1000 ≥1000 ≤10 no E adhesion promotor ≥1000 ≥1000 ≤10 no F adhesion promotor ≥1000 ≤10 ≥1000 no G adhesion promotor ≥1000 ≤10 ≥1000 no watercolumn (cm)
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2K Biobased PU coating
₋ Compatible with additives (not waterbased) ₋ Flexible coating ₋ Not sticky and slip resistant
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Bio FR
₋ Development Centexbel-Maes Matress Ticking ₋ Biobased content: 92% ₋ Interzum award 2017
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Biobased antimicrobial products
₋ Plant, animal or marine origin ₋ Phenolic, ammonia/amine groups,… ₋ Efficacy depending on:
₋ Fabric type (chemistry) ₋ Structure of the textile ₋ Fabric weight
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Biobased antimicrobial products
₋ Thymol and carvacrol and chitosan active at low levels ₋ Biocide regulation!
Staphylococcus aureus Escherichia coli/ Klebsiella pneumoniae Thymol and carvacrol v v Chitosan v v Monolaurin v Tannic acid v Vanillic acid v v Curcumin v v
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₋ Effective against hard fouling (e.g. barnacles, mussels etc.)
Biobased antifouling additive
20 40 60 80 100 grazing [%] animals [%] algae [%] 20 40 60 80 100 grazing [%] animals [%] algae [%]
Reference Antifouling coating
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Outline
₋ Introduction ₋ Results ₋ Conclusions and outlook
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Conclusions and outlook
₋ Biobased PU’s are promising candidates for renewable textile coatings ₋ Biobased functional additives can be implemented for different applications
₋ FR ₋ Antimicrobial ₋ Antifouling ₋ Abrasion resistance ₋ …
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Questions ?
dds@centexbel.be +32 9 241 86 84
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Acknowledgement
The presented results are part of the research projects Biopu funded by Flanders Innovation and Entrepreneurship and part
- f the research project Duratex financed within the Interreg V