Comparative Analysis of the Efficiency of Gas Grafting Reaction of Different Types of Hanji with Palmitoyl Chloride

Choi, Kyoung-Hwa; Lee, Kwang Seob; Lee, Jae‐Hoon; Lee, Myoung-Ku; Ryu, Jeong-Yong

doi:10.7584/jktappi.2019.06.51.3.90

Cited by 5 publications

(2 citation statements)

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“…Unreacted palmitic acids in the sample, as well as palmitic acids derived from palmitoyl chloride that reacted with the hydroxyl groups of cellulose bers, were extracted and separated through Soxhlet extraction and saponi cation. Subsequently, GC analysis was performed (Choi et al 2019).…”

Section: Water Retention Value Of Handsheetmentioning

confidence: 99%

“…In France, Samain (2002) developed a technique to hydrophobize the surface of hydrophilic cellulose with hydroxyl groups using gas grafting with fatty acid chlorides. Chromatogenic technology forms ester bonds by reacting gaseous fatty acid chlorides with hydroxyl groups, which can be used to modify the surface of cellulose (Choi et al 2019).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Gas-Grafting Pretreatment of Cellulose on Properties of Cellulose-Polypropylene Composites

Noh,

Lee,

Choi

et al. 2024

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This study investigated a method to modify cellulose for enhanced hydrophobicity through gas-phase grafting with palmitoyl chloride, facilitating easier blending of fibers and polypropylene. In addition, cellulose sheets were produced by substituting water in the cellulose fiber stock with ethanol during sheet molding to prevent the matting of macrofibrils on the cellulose surface, thereby improving the hydrophobization efficiency achieved by gas grafting. The results revealed that alcohol-molded sheets, which expanded in volume, exhibited more than twice the amount of reacted fatty acids compared to conventional water-based cellulose sheets after gas grafting. Composite films composed of the pretreated fibers exhibited superior tensile strength relative to those made from non-grafted fibers. In particular, the addition of maleic-anhydride-grafted polypropylene (MAPP) improved the dispersibility of the cellulose fibers within the composite film, indicating the positive contribution of gas grafting and MAPP treatment.

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Section: Water Retention Value Of Handsheetmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%