Review of Hydrogels and Aerogels Containing Nanocellulose
2017-06-25
org.kosen.entty.User@31af6c18
박영환(yehapark)
분야
화학
개최일
April 16, 2017
신청자
박영환(yehapark)
개최장소
URL
행사&학회소개
1 Introduction
2 Hydrogels
2.1“CNC-Only” Hydrogels
2.2Hydrogels with Physically Entrapped CNCs
2.3Hydrogels with Chemically Entrapped CNCs
2.4“CNF-Only” Hydrogels
2.5Hydrogels with Physically and Chemically Entrapped CNFs
3 Aerogels
3.1CNC Aerogels
3.2CNF Aerogels
4 Summary and Outlook
2 Hydrogels
2.1“CNC-Only” Hydrogels
2.2Hydrogels with Physically Entrapped CNCs
2.3Hydrogels with Chemically Entrapped CNCs
2.4“CNF-Only” Hydrogels
2.5Hydrogels with Physically and Chemically Entrapped CNFs
3 Aerogels
3.1CNC Aerogels
3.2CNF Aerogels
4 Summary and Outlook
보고서작성신청
목재에서 얻을 수 있는 셀룰로오스 재료로부터 나노셀룰로오스를 만드는 기술과 이를 이용한 응용 연구가 최근 새롭게 높은 관심이 집중되고 있다. 본 자료를 통해 많은 과학기술인들에게 나노셀룰로오스에 대한 소개가 이루어지길 바란다.
Naturally derived cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) are emerging nanomaterials that display high strength, high surface area, and tunable surface chemistry, allowing for controlled interactions with polymers, nanoparticles, small molecules, and biological materials. Industrial production of nanocelluloses is increasing rapidly with several companies already producing on the tons-per-day scale, intensifying the quest for viable products across many sectors. While the hydrophilicity of the nanocellulose interface has posed a challenge to the use of CNCs and CNFs as reinforcing agents in conventional plastics, it is a significant benefit for creating reinforced or structured hydrogel composites (or, when dried, aerogels) exhibiting both mechanical reinforcement and a host of other desirable properties. In this context, this Review describes the quickly growing field of hydrogels and aerogels incorporating nanocelluloses; over 200 references are summarized in comprehensive tables covering the chemistry, preparation, properties, and applications of “nanocellulose-only” and “nanocellulose-containing” gels. Physical and chemical cross-linking strategies, postmodification steps, and routes to control gel structure are discussed, along with key developments and ongoing challenges in the field. Nanocellulose hydrogels and aerogels show great promise in a wide range of biomedical, energy storage, construction, separations, cosmetic, and food applications.
Naturally derived cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) are emerging nanomaterials that display high strength, high surface area, and tunable surface chemistry, allowing for controlled interactions with polymers, nanoparticles, small molecules, and biological materials. Industrial production of nanocelluloses is increasing rapidly with several companies already producing on the tons-per-day scale, intensifying the quest for viable products across many sectors. While the hydrophilicity of the nanocellulose interface has posed a challenge to the use of CNCs and CNFs as reinforcing agents in conventional plastics, it is a significant benefit for creating reinforced or structured hydrogel composites (or, when dried, aerogels) exhibiting both mechanical reinforcement and a host of other desirable properties. In this context, this Review describes the quickly growing field of hydrogels and aerogels incorporating nanocelluloses; over 200 references are summarized in comprehensive tables covering the chemistry, preparation, properties, and applications of “nanocellulose-only” and “nanocellulose-containing” gels. Physical and chemical cross-linking strategies, postmodification steps, and routes to control gel structure are discussed, along with key developments and ongoing challenges in the field. Nanocellulose hydrogels and aerogels show great promise in a wide range of biomedical, energy storage, construction, separations, cosmetic, and food applications.