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Towards Sustainable Textiles: Microplastics, Coffee, and Closing the Loop- [electronic resource]
Towards Sustainable Textiles: Microplastics, Coffee, and Closing the Loop- [electronic resource]

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자료유형  
 학위논문
Control Number  
0016935695
International Standard Book Number  
9798380374071
Dewey Decimal Classification Number  
620.11
Main Entry-Personal Name  
Rieland, Julie M.
Publication, Distribution, etc. (Imprint  
[S.l.] : University of Michigan., 2023
Publication, Distribution, etc. (Imprint  
Ann Arbor : ProQuest Dissertations & Theses, 2023
Physical Description  
1 online resource(152 p.)
General Note  
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
General Note  
Advisor: Love, Brian J.
Dissertation Note  
Thesis (Ph.D.)--University of Michigan, 2023.
Restrictions on Access Note  
This item must not be sold to any third party vendors.
Restrictions on Access Note  
This item must not be added to any third party search indexes.
Summary, Etc.  
요약It is increasingly becoming clear that the way textiles are currently produced and consumed can be unsustainable and negatively impact human and environmental health. In this study both textile production, sourcing, and use-phase related pollution were considered. In the first section of this dissertation, microplastic (MP) pollution is investigated using pressure-sensitive adhesive (PSA)-coated substrates as adsorbents. In the following two sections, coffee fruit (cascara) waste is assessed as a raw material for human-made cellulosic-fibers using ionic liquid (IL) solvents.PSAs were identified as an effective adsorbent for MPs under aqueous conditions.To better explore PSA-MP interactions, simple glass-slide substrates were made to allow rapid optical quantification. Three formulations of poly(2-ethylhexyl acrylate) PSA were considered including 92k molecular weight (MW), 950k MW, and a 50:50 wt% bimodal distribution (BD) of the 92k and 950k. The BD yielded the most robust adhesive films after 30 min under aqueous shaking conditions while 92k and 950k films degraded after 1 and 5 min respectively. The BD samples captured 50% more nylon particles than the 950k, with maximum slide coverage achieving 25% after 30 min shaking. The broad effectiveness of PSA-based capture was demonstrated through an assessment of 10 aqueous conditions including solid, chemical, and temperature modifications. Although capture was suppressed under all non-deionized water conditions, capture remained viable except at 0.1% w/v surfactant loadings. Finally, a comparison of five MP species of different size revealed an inherent bias to MP quantification. It was found that number counts of particles bias towards smaller particles and size based assessment biases towards larger particles. I propose that future MP reporting should present both count and size based quantification to control for this bias.ILs are expected to be greener and safer biomass solvents than more conventional fiber-making systems like the viscose and lyocell processes. In conventional fiber processes and most current IL research, purified cellulose is the primary feed-stock, which requires caustic alkaline or acidic treatments for isolation. Herein, the IL, Diazabicyclo[5.4.0]undec-7-inium acetate ([DBUH][OAc]) was assessed for the dissolution and shaping of unrefined lignocellulosic biomass.Unrefined cascara waste was investigated as a feedstock for dissolution in [DBUH][OAc] compared to cotton. Cascara is a high-volume agriculture waste that has heavy economic, environmental, and health burdens associated with disposal in producer countries. Unrefined cascara was partially soluble in [DBUH][OAc] (65% w/w), yielding a high viscosity, cellulose-rich solution that can be shaped and re-coagulated into fibers and films. Following, three pretreatments were assessed including ethanol extraction, dilute IL treatment (10% water), and an acid chlorite treatment. All pretreatments increased cascara solubility in [DBUH][OAc] ( 75% w/w). 10% solutions of treated cascara were extruded into long fibers ( 40 cm) with irregular, lobed cross-sections. Treated cascara fibers were qualitatively more robust than untreated cascara fibers. Ethanol treated fibers performed similarly to those treated with acid chlorite, showing promise that less harsh pretreatments of biomass may be sufficient for some applications. Overall, the cascara work suggests that complex biomass sources from agriculture waste may be viable for synthetic cellulose fibers.
Subject Added Entry-Topical Term  
Materials science.
Subject Added Entry-Topical Term  
Plastics.
Subject Added Entry-Topical Term  
Sustainability.
Index Term-Uncontrolled  
Microplastics
Index Term-Uncontrolled  
Ionic liquid
Index Term-Uncontrolled  
Biomass
Index Term-Uncontrolled  
Pressure sensitive adhesive
Index Term-Uncontrolled  
Cellulose fibers
Added Entry-Corporate Name  
University of Michigan Macromolecular Science & Engineering
Host Item Entry  
Dissertations Abstracts International. 85-03B.
Host Item Entry  
Dissertation Abstract International
Electronic Location and Access  
로그인을 한후 보실 수 있는 자료입니다.
Control Number  
joongbu:643599

MARC

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■035    ▼a(MiAaPQ)umichrackham005075
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a620.11
■1001  ▼aRieland,  Julie  M.
■24510▼aTowards  Sustainable  Textiles:  Microplastics,  Coffee,  and  Closing  the  Loop▼h[electronic  resource]
■260    ▼a[S.l.]▼bUniversity  of  Michigan.  ▼c2023
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2023
■300    ▼a1  online  resource(152  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-03,  Section:  B.
■500    ▼aAdvisor:  Love,  Brian  J.
■5021  ▼aThesis  (Ph.D.)--University  of  Michigan,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■506    ▼aThis  item  must  not  be  added  to  any  third  party  search  indexes.
■520    ▼aIt  is  increasingly  becoming  clear  that  the  way  textiles  are  currently  produced  and  consumed  can  be  unsustainable  and  negatively  impact  human  and  environmental  health.  In  this  study  both  textile  production,  sourcing,  and  use-phase  related  pollution  were  considered.  In  the  first  section  of  this  dissertation,  microplastic  (MP)  pollution  is  investigated  using  pressure-sensitive  adhesive  (PSA)-coated  substrates  as  adsorbents.  In  the  following  two  sections,  coffee  fruit  (cascara)  waste  is  assessed  as  a  raw  material  for  human-made  cellulosic-fibers  using  ionic  liquid  (IL)  solvents.PSAs  were  identified  as  an  effective  adsorbent  for  MPs  under  aqueous  conditions.To  better  explore  PSA-MP  interactions,  simple  glass-slide  substrates  were  made  to  allow  rapid  optical  quantification.  Three  formulations  of  poly(2-ethylhexyl  acrylate)  PSA  were  considered  including  92k  molecular  weight  (MW),  950k  MW,  and  a  50:50  wt%  bimodal  distribution  (BD)  of  the  92k  and  950k.  The  BD  yielded  the  most  robust  adhesive  films  after  30  min  under  aqueous  shaking  conditions  while  92k  and  950k  films  degraded  after  1  and  5  min  respectively.  The  BD  samples  captured  50%  more  nylon  particles  than  the  950k,  with  maximum  slide  coverage  achieving  25%  after  30  min  shaking.  The  broad  effectiveness  of  PSA-based  capture  was  demonstrated  through  an  assessment  of  10  aqueous  conditions  including  solid,  chemical,  and  temperature  modifications.  Although  capture  was  suppressed  under  all  non-deionized  water  conditions,  capture  remained  viable  except  at  0.1%  w/v  surfactant  loadings.  Finally,  a  comparison  of  five  MP  species  of  different  size  revealed  an  inherent  bias  to  MP  quantification.  It  was  found  that  number  counts  of  particles  bias  towards  smaller  particles  and  size  based  assessment  biases  towards  larger  particles.  I  propose  that  future  MP  reporting  should  present  both  count  and  size  based  quantification  to  control  for  this  bias.ILs  are  expected  to  be  greener  and  safer  biomass  solvents  than  more  conventional  fiber-making  systems  like  the  viscose  and  lyocell  processes.  In  conventional  fiber  processes  and  most  current  IL  research,  purified  cellulose  is  the  primary  feed-stock,  which  requires  caustic  alkaline  or  acidic  treatments  for  isolation.  Herein,  the  IL,  Diazabicyclo[5.4.0]undec-7-inium  acetate  ([DBUH][OAc])  was  assessed  for  the  dissolution  and  shaping  of  unrefined  lignocellulosic  biomass.Unrefined  cascara  waste  was  investigated  as  a  feedstock  for  dissolution  in  [DBUH][OAc]  compared  to  cotton.  Cascara  is  a  high-volume  agriculture  waste  that  has  heavy  economic,  environmental,  and  health  burdens  associated  with  disposal  in  producer  countries.  Unrefined  cascara  was  partially  soluble  in  [DBUH][OAc]  (65%  w/w),  yielding  a  high  viscosity,  cellulose-rich  solution  that  can  be  shaped  and  re-coagulated  into  fibers  and  films.  Following,  three  pretreatments  were  assessed  including  ethanol  extraction,  dilute  IL  treatment  (10%  water),  and  an  acid  chlorite  treatment.  All  pretreatments  increased  cascara  solubility  in  [DBUH][OAc]  (  75%  w/w).  10%  solutions  of  treated  cascara  were  extruded  into  long  fibers  (  40  cm)  with  irregular,  lobed  cross-sections.  Treated  cascara  fibers  were  qualitatively  more  robust  than  untreated  cascara  fibers.  Ethanol  treated  fibers  performed  similarly  to  those  treated  with  acid  chlorite,  showing  promise  that  less  harsh  pretreatments  of  biomass  may  be  sufficient  for  some  applications.  Overall,  the  cascara  work  suggests  that  complex  biomass  sources  from  agriculture  waste  may  be  viable  for  synthetic  cellulose  fibers.
■590    ▼aSchool  code:  0127.
■650  4▼aMaterials  science.
■650  4▼aPlastics.
■650  4▼aSustainability.
■653    ▼aMicroplastics
■653    ▼aIonic  liquid
■653    ▼aBiomass
■653    ▼aPressure  sensitive  adhesive
■653    ▼aCellulose  fibers
■690    ▼a0795
■690    ▼a0794
■690    ▼a0640
■71020▼aUniversity  of  Michigan▼bMacromolecular  Science  &  Engineering.
■7730  ▼tDissertations  Abstracts  International▼g85-03B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0127
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16935695▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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