Extraction of cellulose nanocrystals and nanofibers from rubber leaves and their impacts on natural rubber properties

Name: Wanasorn Sompol.

Organization : Kasetsart University. Faculty of Engineering

Name: Napassorn Chanka.

Organization : Kasetsart University. Faculty of Engineering

Name: Tanabadee Boonmalert.

Organization : Kasetsart University. Faculty of Engineering

Name: Surapich Loykulnant.

Organization : National Metal and Materials Technology Center

Name: Paweena Prapainainar.

Organization : Kasetsart University. Center of Excellence on Petrochemical and Materials Technology

Name: Anusorn Seubsai.

Organization : Kasetsart University. Center of Excellence on Petrochemical and Materials Technology

Name: Peerapan Dittanet.

Organization : Kasetsart University. Center of Excellence on Petrochemical and Materials Technology

Email : peerapan.d@ku.th

keyword: Nanocellulose.

LCSH: BIODEGRADATION.

; Natural rubber latex.

LCSH: CELLULOSE NANOCRYSTALS.

; Soil burial.

Abstract: This study aimed to chemically isolate two distinct types of nanocellulose derived from rubber leaves and investigate their use in natural rubber (NR). The cellulose nanocrystals (CNCs) were obtained through acid hydrolysis, while oxidation with 2, 2, 6, 6-tetramethylpiperidine-1-oxyl (TEMPO) was used to produce cellulose nanofibers (CNFs). The CNCs exhibited rigid and rod-like structures due to the removal of amorphous regions through acid hydrolysis, whereas the CNFs retained flexible, fiber-like morphologies and high aspect ratios. Incorporating CNCs or CNFs into NR improved its tensile properties, with the rigid CNCs enhancing the mechanical properties more than the flexible CNFs. CNC addition resulted in a 40 percent increase in tensile strength and a 38 percent increase in Young's modulus of NR. However, elongation at break decreased with filler content. On the other hand, CNF addition improved the elongation at the break without compromising the tensile properties. NR with CNF addition exhibited a 25 percent increase in tensile strength, a 30 percent increase in Young's modulus, and a 20 percent increase in elongation at break. Additionally, the biodegradability of NR nanocomposite films containing CNCs or CNFs surpassed that of unfilled NR film. Notably, a 6-month soil burial test revealed weight losses of 35 percent and 40 percent for NR nanocomposite films with CNCs and CNFs respectively, compared to a weight loss of 25 percent for the unfilled NR film."

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2024

Modified: 2567-06-07

Issued: 2024-06-07

บทความ/Article

application/pdf

BibliograpyCitation : APPLIED SCIENCE AND ENGINEERING PROGRESS. vol. 17, no. 2 (Apr.-June 2024), p. 1-15.

eng

©copyrights King Mongkut's University of Technology North Bangkok

ลำดับที่.	ชื่อแฟ้มข้อมูล	ขนาดแฟ้มข้อมูล	จำนวนเข้าถึง	วัน-เวลาเข้าถึงล่าสุด
1	aij170215.pdf	1.49 MB

ใช้เวลา

0.025416 วินาที