+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Preparation of rigid low density flame retardant polyurethane foams from whey permeate

Journal of Chemical Technology & Biotechnology B Biotechnology 34(1): 52-56

Preparation of rigid low density flame retardant polyurethane foams from whey permeate

The disposal of whey and whey permeate derived from the cheese industry is a serious economic and environmental problem. Lactose in whey permeate was used to synthesize polyether polyols from which rigid, low-density polyurethane foams were prepared. Resultant foams were comparable to those made from commercially available sucrose-based polyether polyols. Brown-colored lactose polyether polyols are characterized by low viscosity and high carbonyl content. Urea incorporated into these polyether polyols yields flame retardant (self-extinguishing) foams. Urea also reduced the amount of P and/or halogen based fire retardants needed to make the forms non-burning. A preliminary economic analysis indicates that whey-based polyether polyols can be prepared at a cost savings of up to 36% compared to the sucrose counterparts.

Accession: 006173822

Related references

Melamine Polyphosphate - the Reactive and Additive Flame Retardant for Polyurethane Foams. Acta Chimica Slovenica 63(1): 77-87, 2016

Polyurethane rigid foam derived from reduced sweet whey permeate. Journal of agricultural and food chemistry 45(10): 4156-4161, 1997

Rigid polyurethane foams extended with partially delactosed whey powder. Journal of Dairy Science 55(10): 1388-1395, 1972

Low-density polyurethane foams stable at high temperatures, their preparation process and their use. French Patent Application (FR 2 626 577): 7 pp., 1989

Preparation and characteristics of low-density polyurethane foams derived from the barks of Acacia mearnsii and Cryptomeria japonica. Mokuzai Gakkaishi = Journal of the Japan Wood Research Society 42(11): 1105-1112, 1996

Energy concentration and phosphorus digestibility in whey powder, whey permeate, and low-ash whey permeate fed to weanling pigs. Journal of Animal Science 90(1): 289-295, 2012

New uses for wood flour in rigid polyurethane foams. For. Prod. J, 10: 10, 487-90, 1960

The release of trichlorofluoromethane from rigid polyurethane foams. Journal of the Air Pollution Control Association 36(2): 159-163, 1986

Polyurethane foams from dried whey. J. Dairy Sci, 53: 1, 18-24, 1970

Wood as a source of raw materials for rigid polyurethane foams. Latvijas PSR Zinatnu Akademijas Vestis (6): 43-53, 1985