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Chanin Duangkaewkart. Low-energy electron-irradiation effect on vulcanization of HANR and DPNR : tensile properties and protein removal. Master's Degree(Advanced and Sustainable Environmental Engineering). Kasetsart University. Office of the University Library. : Kasetsart University, 2017.
Low-energy electron-irradiation effect on vulcanization of HANR and DPNR : tensile properties and protein removal
Name: Chanin Duangkaewkart
Classification :.LCCS: TS1892
LCSH:
Vulcanization
LCSH:
Rubber
Abstract:
In this study, mechanical properties and proteins of both high ammonia natural rubber (HANR) and deproteinized natural rubber (DPNR) samples vulcanized by electron beam (EB) irradiation and sulfur were compared. The DPNR samples were prepared using incubation with urea and surfactant, following with centrifugation. A sensitizer 1,9-bis(acryloyloxy)nonane (ND) was added to the HANR and DPNR latex before applying EB vulcanization dose of 40, 60, 80, and 100 kGy. The changes in mechanical properties and proteins were studied with comparison to HANR and DPNR samples vulcanized by sulfur. The results show that crosslink density of HANR and DPNR rubber samples was increased as a function of radiation dose. The vulcanized DPNR (EB and sulfur) samples exhibit lower tensile and aging properties to the HANR samples (EB and sulfur) due to lack of proteins. The HANR samples vulcanized by EB at radiation dose of 60 kGy have higher extractable proteins but lower nitrogen content than the HANR samples vulcanized by sulfur. SDS-PAGE revealed shorter protein chains on the EB-vulcanized HANR film and higher protein chains on the sulfur vulcanized HANR film.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Name: Nanthiya Hansupalak
Role:
Thesis Advisor
Name: Oraphin Yamamoto
Role:
Thesis Co-Advisor
Created:
2017
Modified:
2023-06-01
Issued:
2023-06-01
วิทยานิพนธ์/Thesis
application/pdf
URL: https://kasetsart.idm.oclc.org/login?url=https://www.lib.ku.ac.th/KUthesis/2560/chanin-dua-all.pdf
CallNumber:
TS1892.C43
eng
DegreeName: Master of Engineering
Level: Master's Degree
Grantor: Kasetsart University
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
0.041502 วินาที
Chanin Duangkaewkart
| Title | Contributor | Type |
|---|---|---|
| Low-energy electron-irradiation effect on vulcanization of HANR and DPNR : tensile properties and protein removal
มหาวิทยาลัยเกษตรศาสตร์ Chanin Duangkaewkart | Nanthiya Hansupalak Oraphin Yamamoto | วิทยานิพนธ์/Thesis |
Nanthiya Hansupalak
Oraphin Yamamoto
| Title | Creator | Type and Date Create |
|---|---|---|
| Low-energy electron-irradiation effect on vulcanization of HANR and DPNR : tensile properties and protein removal
มหาวิทยาลัยเกษตรศาสตร์ Nanthiya Hansupalak;Oraphin Yamamoto | Chanin Duangkaewkart | วิทยานิพนธ์/Thesis |