Masters Theses
Abstract
"The worldwide consumption of Polyurethane rigid foam for construction has shown tremendous growth over the last few decades. Ever since the discovery of Polyurethanes in 1937 by Otto Bayer, the Polyurethane foam industry has undergone several changes to meet the requirements that can accomplish specific functions and can withstand varied conditions as dictated by the needs of the industry. To cope with new challenges of a technical, ecological and economic nature it is important to invent materials which not only possess desired mechanical properties but are also more eco- friendly and economical.
Towards this end a study was undertaken to develop new soyhull based rigid foam formulations. Soyhulls are a low-value byproduct of soybean processing, with cellulose, hemicellulose, and lignin as the principal constituents. A partial hydrolysis of soyhulls was carried out prior to their use in the water blown polyurethane foam formulations. Partial hydrolysis of soyhulls resulted in an increase in the number of hydroxyl and the primary amine groups that can interact with the isocyanates and act as reinforcing fillers. These interactions yielded foams with enhanced mechanical properties at lower costs."--Abstract, page iii.
Advisor(s)
Flanigan, V. J.
Committee Member(s)
Kapila, Shubhender
Chandrashekhara, K.
Department(s)
Mechanical and Aerospace Engineering
Degree Name
M.S. in Mechanical Engineering
Publisher
University of Missouri--Rolla
Publication Date
Fall 2004
Pagination
xi, 66 pages
Note about bibliography
Includes bibliographical references (pages 64-65).
Rights
© 2004 Radhika Chalasani, All rights reserved.
Document Type
Thesis - Restricted Access
File Type
text
Language
English
Subject Headings
Polyurethanes -- Technological innovations
Soy bran
Urethane foam -- Mechanical properties
Thesis Number
T 8681
Print OCLC #
62247872
Link to Catalog Record
Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.
http://merlin.lib.umsystem.edu/record=b5393772~S5Recommended Citation
Chalasani, Radhika, "Synthesis and evaluation of soyhull derived rigid polyurethane foams" (2004). Masters Theses. 3625.
https://scholarsmine.mst.edu/masters_theses/3625
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Comments
This study was supported in part through grants provided by the U.S. Department of Agriculture and Missouri Soybean Merchandising Council, Jefferson City, MO.