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・ Ure2
・ Ure2 internal ribosome entry site (IRES)
・ Ure2p
・ Urea
・ Urea breath test
・ Urea carboxylase
・ Urea cycle
・ Urea cycle disorder
・ Urea extraction crystallization
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Urea-formaldehyde
・ Urea-molasses
・ Ureaplasma canigenitalium
・ Ureaplasma cati
・ Ureaplasma diversum
・ Ureaplasma felinum
・ Ureaplasma gallorale
・ Ureaplasma infection
・ Ureaplasma loridis
・ Ureaplasma parvum
・ Ureaplasma urealyticum
・ Urease
・ Ureban
・ Urecar
・ Urecco


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Urea-formaldehyde : ウィキペディア英語版
Urea-formaldehyde
Urea-formaldehyde, also known as urea-methanal, so named for its common synthesis pathway and overall structure,〔(Uses Of Formaldehyde )〕 is a non-transparent thermosetting resin or plastic, made from urea and formaldehyde heated in the presence of a base. These resins are used in adhesives, finishes, particle board, MDF, and molded objects. UF and related amino resins are considered a class of thermosetting resins of which urea-formaldehyde resins make up 80% produced globally. Examples of amino resins include automobile tires in order to improve the bonding of rubber to tire cord, paper for improving tear strength, molding electrical devices, molding jar caps, etc.〔H. Deim, G. Matthias, R. A. Wagner "Amino Resins" in Ullmann's Encyclopedia of Industrial Chemistry,2012, Wiley-VCH, Weinheim. 〕
==Properties==
Urea-formaldehyde resin's attributes include high tensile strength, flexural modulus, and a high heat distortion temperature, low water absorption, mould shrinkage, high surface hardness, elongation at break, and volume resistance.
Index of Refraction = 1.54

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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