نتایج جستجو برای: polymer urea formaldehyde

تعداد نتایج: 140518  

Journal: :Japanese Journal of Pharmacology 1974

Journal: :Journal of the Society of Materials Science, Japan 1968

Journal: :The Journal of the Society of Chemical Industry, Japan 1970

Journal: :American Journal of Chemical and Biochemical Engineering 2018

Journal: :The Journal of the Society of Chemical Industry, Japan 1961

Journal: :Journal of environmental biology 2009
Ergun Guuntekin Birol Uner Beyhan Karakus

This study examined chemical composition of tomato stalks and their possible feasibility in the production of particleboard. Three-layer experimental particleboards with density of 0.53, 0.63, and 0.73 g cm(-3) were manufactured from tomato stalks using certain ratios of urea formaldehyde (UF) and melamine urea formaldehyde (MUF) adhesives. Modulus of elasticity (MOE), modulus of rupture (MOR),...

Journal: :Journal of microencapsulation 2003
E N Brown M R Kessler N R Sottos S R White

Microencapsulated healing agents that possess adequate strength, long shelf-life and excellent bonding to the host material are required for self-healing materials. Urea-formaldehyde microcapsules containing dicyclopentadiene were prepared by in situ polymerization in an oil-in-water emulsion that meet these requirements for self-healing epoxy. Microcapsules of 10-1000 microm in diameter were p...

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