duratex – kick-off...duratex interreg v france-wallonie-flanders project objective eco-friendly...
TRANSCRIPT
![Page 1: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/1.jpg)
Eco-friendly water and oil repellent and antimicrobial finishes on textiles De Smet David – Centexbel
![Page 2: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/2.jpg)
Outline
Introduction
Results
Conclusions and outlook
![Page 3: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/3.jpg)
Outline
Introduction
Results
Conclusions and outlook
![Page 4: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/4.jpg)
Centexbel/VKC
Collective research and technical centre
Governed by the industry
Membership organisation
Belgian textile companies
Associated (international) member companies
and organisations
![Page 5: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/5.jpg)
Centexbel/VKC
![Page 6: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/6.jpg)
Products & Activities
R&D Testing Services
![Page 7: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/7.jpg)
Technology Fields
Functional
thermoplastic textiles
• Meltprocessing of
polymers in textiles and
composites
Plastic processing
• Material characterisation
• Plastic processing
technologies
• Recycling
Textile
functionalisation and
surface modification
• Coating, finishing and
surface modification for
new and superior
functional performances
Health, safety and
security
• Textile products for
health, safety and
security purposes
![Page 8: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/8.jpg)
Research Strategy
Close to industrial needs and
opportunities
innovation in processes
innovation in products
Sustainability
resource efficiency
recycling of materials
biopolymers (industrial implementation)
![Page 9: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/9.jpg)
Duratex
Interreg V France-Wallonie-Flanders project
Objective
Eco-friendly water and oil repellent
Non-toxic biobased antimicrobials free of metals
Extrusion
Diffusion
Coating and finishing
Transborder cooperation
![Page 10: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/10.jpg)
Duratex partners
Centexbel
Certech
UCL
Ceti
Ensait
![Page 11: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/11.jpg)
Outline
Introduction
Results
Conclusions and outlook
![Page 12: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/12.jpg)
Superhydrophobic surfaces
Most important characteristics
Micro and nano roughness
Low surface tension
Contact angle > 150°
Water drop rolling off
![Page 13: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/13.jpg)
Solgel route
PES treated with tetraethyl orthosilicate (TEOS) and octyltriethoxysilane
No superhydrophobic effect
0
20
40
60
80
100
120
0 10 20 30 40 50 60
an
gle
de c
on
tact
( )
temps (sec)
tissu sans traitement 200 µl TEOS+200 µl OTES 2° imprégnation
2,5 ml TEOS et 2,5 ml OTES 2° imprégnation 3° impregantion
4° imprégnation ss lavage
![Page 14: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/14.jpg)
LbL route
No superhydrophobic effect and time consuming
PAH H20 PAA H20
+ - Si or PES
Contact angle (°)
Si 151-153
PES 139-144
t-butyl trichlorosilane NPs
-
PAH H20 H20
+ -
PAH
PAA
![Page 15: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/15.jpg)
New route
THF + A (x wt %)
15 min ultrasound THF + B (y wt %)
30 min ultrasound
15 min
ultrasound
One-step dip-coating
T min
Curing
1 h @ 80°C or 3 min @ 160°C
A (x wt %) - B (Y = 1.5 wt %)
A 0.5% 1% 2% 4% 6%
(°) 130.5°
139° Roll-off ++
Roll-off ++
Roll-off ++
A (x = 2 wt %) - B (y wt %)
B 0.5% 1% 1.5% 2%
(°) Roll-
off
+/-
Roll-
off
+
Roll-
off
++
Roll-
off
+/-
![Page 16: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/16.jpg)
New route (waterbased)
A 1 wt% in water
B suspension
x = 0.5 or 0.75 wt%
A 1 wt%, B x wt%
x 0.5 0.75
Contact angle (°) 140-147 Roll-off
Rrms= 223 nm As = Adeveloped/Aprojected
=1.8
Suspension/emulsion
preparation
![Page 17: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/17.jpg)
Antimicrobial formulation
Selecting biobased antimicrobial products:
Commercial availability
Toxicity
Cost price
Odour
Compatibility
Metal free
![Page 18: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/18.jpg)
Biobased antimicrobials
Antibacterial effect of biobased products assessed
Kemnat, tannic acid and monolaurin were antibacterial
Thymol + carvacrol strong antibacterial mixture but strong odour
Type of fabric had strong influence on antibacterial effect
![Page 19: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/19.jpg)
Micro encapsulation
PU-urea microcapsules
Biobased and non-toxic products
Encapsulating grapefruit oil and citronellal
Core material should not contain reactive
hydroxyl groups
![Page 20: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/20.jpg)
Micro encapsulation
![Page 21: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/21.jpg)
Micro encapsulation
Applied on cotton woven and knitted fabric and
PES woven fabric
Cotton: antibacterial effect towards S. aureus
and E. coli
PES: antibacterial effect towards S. aureus
![Page 22: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/22.jpg)
Outline
Introduction
Results
Conclusions and outlook
![Page 23: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/23.jpg)
Conclusions
Superhydrophobic effect is achieved with fluor
free products
Application via foulard
Non-toxic biobased products exhibited
antibacterial effect towards Gram+ and Gram-
bacteria
Application via diffusion or foulard
![Page 24: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/24.jpg)
Outlook
Kick-off of Duratex project
@ Centexbel (Zwijnaarde)
October 16, 13h30
Free registration via website http://www.centexbel.be/agenda/duratex-kick-off
![Page 25: Duratex – Kick-off...Duratex Interreg V France-Wallonie-Flanders project Objective Eco-friendly water and oil repellent Non-toxic biobased antimicrobials free of metals ... 2,5 ml](https://reader033.vdocument.in/reader033/viewer/2022042921/5f69e68804df9a4f0527bf7b/html5/thumbnails/25.jpg)
Acknowledgement