สืบค้นงานวิจัย
Improvement of mechanical properties of chitosan-based films via physical treatment of film-forming solution
Thakhiew W. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Improvement of mechanical properties of chitosan-based films via physical treatment of film-forming solution
ผู้แต่ง / หัวหน้าโครงการ (EN): Thakhiew W.
บทคัดย่อ (EN): Although biopolymer films are of interest from many points of view, these films have inferior mechanical properties to commercially available synthetic polymer films. The present study therefore aimed to seek a means to improve the mechanical properties of biopolymer films; chitosan was chosen as the biopolymer of interest. The effects of selected physical methods that can be incorporated into the film-forming solution preparation process were investigated. Heat treatment by heating the film-forming solution at 70 °C for 1 h to induce thermal cross-linkage of chitosan polymer chains was evaluated. In addition, the effects of some processes that led to the homogenization of the chitosan solution and plasticizer (glycerol) were tested. These included rotor-stator homogenization at 9600 rpm at atmospheric pressure and two-stage high-pressure homogenization at a gauge pressure of either 10/5, 20/5 or 30/5 MPa. The prepared film-forming solutions were then dried by hot air drying at 40 °C and the obtained films were tested for their properties and characteristics in terms of the tensile strength, percent elongation, X-ray diffraction as well as dynamic mechanical analysis patterns. Chitosan film exhibiting the best mechanical properties was the one prepared from the film solution that did not pass through the heat treatment but passed through the high-pressure homogenization at 10/5 MPa, with the tensile strength and percent elongation of about 46 MPa and 36%, respectively. Compared to the control film, there was an increase of about 23% in the tensile strength and 25% in the percent elongation. © 2015 Elsevier Ltd. All rights reserved.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925061280&doi=10.1016%2fj.jfoodeng.2015.02.027&partnerID=40&md5=5acfad5e7ade8ea588295cf25de4b397
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Film preparation
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

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Thakhiew W.. "Improvement of mechanical properties of chitosan-based films via physical treatment of film-forming solution". ไม่ระบุหน่วยงาน. ม.ป.ป.

Thakhiew W.. "Improvement of mechanical properties of chitosan-based films via physical treatment of film-forming solution". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Improvement of mechanical properties of chitosan-based films via physical treatment of film-forming solution
Thakhiew W.
มหาวิทยาลัยมหิดล
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