Interaction of casein functionalized cellulose whiskers with poly(lactic acid)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Cellulose fibers are widely used as reinforcing fillers in composite materials. Many studies have been performed on biodegradable composites of poly(lactic acid) incorporating cellulose whiskers with the goal of improving physical properties. However, it is not easy to disperse the generally hydrophilic cellulose fibers uniformly in the hydrophobic polymer matrix. In this study, we proposed a novel way to incorporate cellulose fibers into poly(lactic acid) by functionalizing them with whole milk casein protein. Surface plasmon resonance studies showed strong interaction between whole milk casein and poly(lactic acid). Adsorption coefficient for the binding of poly(lactic acid) to casein surfaces was around 4×10-4 M -1. The potential of using casein as an intermediate to increase the affinity of cellulose fibers to poly(lactic acid) is discussed.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011
PublisherAmerican Society of Agricultural and Biological Engineers
Pages2169-2177
Number of pages9
Volume3
ISBN (Print)9781618391568
StatePublished - 2011
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011 - Louisville, KY, United States
Duration: Aug 7 2011Aug 10 2011

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011
CountryUnited States
CityLouisville, KY
Period8/7/118/10/11

Fingerprint

polylactic acid
cellulosic fibers
casein
cellulose
whole milk
composite materials
filling materials
surface plasmon resonance
biodegradability
physical properties
polymers
adsorption
proteins

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

Cite this

Gu, J., & Catchmark, J. M. (2011). Interaction of casein functionalized cellulose whiskers with poly(lactic acid). In American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011 (Vol. 3, pp. 2169-2177). American Society of Agricultural and Biological Engineers.
Gu, Jin ; Catchmark, Jeffrey M. / Interaction of casein functionalized cellulose whiskers with poly(lactic acid). American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011. Vol. 3 American Society of Agricultural and Biological Engineers, 2011. pp. 2169-2177
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Gu, J & Catchmark, JM 2011, Interaction of casein functionalized cellulose whiskers with poly(lactic acid). in American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011. vol. 3, American Society of Agricultural and Biological Engineers, pp. 2169-2177, American Society of Agricultural and Biological Engineers Annual International Meeting 2011, Louisville, KY, United States, 8/7/11.

Interaction of casein functionalized cellulose whiskers with poly(lactic acid). / Gu, Jin; Catchmark, Jeffrey M.

American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011. Vol. 3 American Society of Agricultural and Biological Engineers, 2011. p. 2169-2177.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Interaction of casein functionalized cellulose whiskers with poly(lactic acid)

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N2 - Cellulose fibers are widely used as reinforcing fillers in composite materials. Many studies have been performed on biodegradable composites of poly(lactic acid) incorporating cellulose whiskers with the goal of improving physical properties. However, it is not easy to disperse the generally hydrophilic cellulose fibers uniformly in the hydrophobic polymer matrix. In this study, we proposed a novel way to incorporate cellulose fibers into poly(lactic acid) by functionalizing them with whole milk casein protein. Surface plasmon resonance studies showed strong interaction between whole milk casein and poly(lactic acid). Adsorption coefficient for the binding of poly(lactic acid) to casein surfaces was around 4×10-4 M -1. The potential of using casein as an intermediate to increase the affinity of cellulose fibers to poly(lactic acid) is discussed.

AB - Cellulose fibers are widely used as reinforcing fillers in composite materials. Many studies have been performed on biodegradable composites of poly(lactic acid) incorporating cellulose whiskers with the goal of improving physical properties. However, it is not easy to disperse the generally hydrophilic cellulose fibers uniformly in the hydrophobic polymer matrix. In this study, we proposed a novel way to incorporate cellulose fibers into poly(lactic acid) by functionalizing them with whole milk casein protein. Surface plasmon resonance studies showed strong interaction between whole milk casein and poly(lactic acid). Adsorption coefficient for the binding of poly(lactic acid) to casein surfaces was around 4×10-4 M -1. The potential of using casein as an intermediate to increase the affinity of cellulose fibers to poly(lactic acid) is discussed.

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Gu J, Catchmark JM. Interaction of casein functionalized cellulose whiskers with poly(lactic acid). In American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011. Vol. 3. American Society of Agricultural and Biological Engineers. 2011. p. 2169-2177