نتایج جستجو برای: urea formaldehyde resin
تعداد نتایج: 77915 فیلتر نتایج به سال:
In this part of a series of review articles on formaldehyde-releasers and their relationship to formaldehyde contact allergy, formaldehyde-releasers in cosmetics are discussed. In this first part of the article, key data are presented including frequency of sensitization and of their use in cosmetics. In Europe, low frequencies of sensitization have been observed to all releasers: 2-bromo-2-nit...
Abstract The synthesis of an adhesive composed fructose, hydroxymethylfurfural (HMF), and bishexamethylene triamine was optimized. intended application the is production wood composites such as particleboard or medium-density fiberboard. Adhesives synthesized using HMF-rich precursors produced in continuous batch systems were compared regard to their tensile shear strength development; no signi...
Organosolv wheat straw lignin extracted using the CIMV process is a linear, low molecular weight, and natural phenolic oligomer. In this study, organosolv wheat straw lignin was tested as a substitute for 50% to 70% of the phenol in a phenol-formaldehyde-resol resin. The lignin was used without any chemical modification in a one-step synthesis reaction. Parameters such as reaction time and form...
Polyester resin plastination is a less expensive technique, resulting in high quality plastinates. The dissected poultry specimens were fixed with formaldehyde. Specimens were impregnated with resin, followed by curing resulted in good quality dry, odourless and solid specimens which can be used for teaching.
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