Manufacturing method of hydrophobic cellulose nanofibril

• Main Author: SHIN SOO JEONG
• Format: Patent
• Language: English; Korean
• Published: 07.07.2022
• Subjects: FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS

A method for preparing hydrophobic cellulose nanofibers of the present invention comprises: a hydrophobization step for hydrophobizing cellulose nanofibers; and a drying step for drying the hydrophobized cellulose nanofibers in the hydrophobization step. The hydrophobization step is configured to use an alkyl ketene dimer (AKD) and an alkenyl succinic anhydride (ASA), or a mixture thereof, and is performed at a temperature of 80-140 ℃. 본 발명의 소수성 셀룰로오스 나노섬유의 제조 방법은, 셀룰로오스 나노 섬유를 소수화하는 단계; 및 상기 소수화하는 단계를 통해 소수화된 세룰로오스 나노 섬유를 건조하는 단계를 포함하고, 상기 소수화하는 단계에서는, 알킬케톤다이머(AKD; alkyl ketone dimer)와 알케닐숙신산 무수물(ASA; alkenyl succinic anhydride) 또는 이들의 혼합물을 이용하고, 80 ℃ 내지 140 ℃의 온도에서 진행되는 것을 특징으로 한다.