Development of cellulose from pineapple leavers for reinforcement in natural rubber composites

Name: Watcharapat Chawalitsakunchai

LCSH: Kasetsart University -- Theses. M.Eng. (Chemical Engineering) 2018

Classification :.LCCS: TS1891

LCSH: Kasetsart University. -- Department of Chemical Engineering -- Theses

LCSH: Vulcanization

LCSH: Rubber -- Reinforcement

LCSH: Pineapple leaves -- Utilization

LCSH: Cellulose -- Extraction

LCSH: Cellulose fibers

LCSH: Fillers (Materials)

LCSH: Latex.

Abstract: This work aimed to study the extraction and hydrolysis of cellulose from pineapple leaves (PL) and mechanical properties of the reinforced composite with/without fillers via electron beam irradiation (EB) and sulfur vulcanization (Svul). PL is abandoned in many countries such as Thailand, Brazil, Philippines and others. It is properly used as raw materials for synthesis of nanocellulose (CNCs) by extraction due to its highly cellulose content. The extraction was performed by traditional acid hydrolysis and pressurized acid hydrolysis. The first pathway (traditional method), the extraction consisted of alkali, bleaching, and hydrolysis. The other pathway was similar to the traditional treatment but pressure was used to reduce the amount of chemical substances in procedures. The shape of CNCs was rod-like shape. The approximately diameter and length of CNCs were 100-150 nm and 3-5 nm, respectively in both hydrolysis. Next, the CNCs were used as reinforcing fillers in the rubber composites. The result showed that loading CNCs at 2.5 phr in NR composite enhance their mechanical properties due to good distribution of CNCs in composites. Furthermore, comparing EB irradiation to sulfur vulcanization, it was founded that composites vulcanized by sulfur was stronger and had higher chemical resistance than the EB irradiation. This related to the amount of crosslinking network inside the composites.

Kasetsart University. Office of the University Library

Address: Bangkok

Email: tdckulib@ku.ac.th

Name: Paweena Prapainainar

Role: Thesis Advisor

Role: Thesis CO-Advisor

Name: Peerapan Dittanet

Created: 2018

Modified: 2025-07-04

Issued: 2025-07-04

วิทยานิพนธ์/Thesis

application/pdf

URL: https://www.lib.ku.ac.th/KUthesis/2561/watcharapat-cha-all.pdf

CallNumber: TS1891 .W37

eng

DegreeName: Master of Engineering

Level: Master's Degree

Descipline: Chemical Engineering

Grantor: Kasetsart University

©copyrights Kasetsart University

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