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polyurea
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Polyurea — is a type elastomer that is derived from the reaction product of an isocyanate component and a synthetic resin blend component. The isocyanate can be aromatic or aliphatic in nature. It can be monomer, polymer, or any variant reaction of… … Wikipedia
polyurea — polikarbamidas statusas T sritis chemija apibrėžtis Heterograndininis polimeras, kurio molekulėje yra periodiškai pasikartojančių –NHCONH– grupių. atitikmenys: angl. poly(carbamide); polyurea rus. поликарбамид; полимочевина … Chemijos terminų aiškinamasis žodynas
Polyurea — Strukturformel eines Polyharnstoffs Polyharnstoffe sind Polymere, die durch die Polyaddition von Isocyanaten und Aminen entsteht. Das Polymer besitzt ein Strukturelement, das dem Harnstoff ähnelt: [ NH R NH (C=O) NH R’ NH (C=O) ]n Strukturell… … Deutsch Wikipedia
Petrochemical — Petrochemicals are chemical products made from raw materials of petroleum or other hydrocarbon origin. Although some of the chemical compounds that originate from petroleum may also be derived from World production of ethylene is around 110… … Wikipedia
Pond liner — An impermeable geomembrane used for water retention, including the lining of lakes, garden ponds and artificial streams in parks and gardens. Pond liners need to be protected from sharp objects (eg stones) below the liner and from being punctured … Wikipedia
Полимочевины — (поликарбамиды) синтетические полимеры, содержащие в главной цепи фрагменты мочевины NH CO NH и получаемые переамидированием мочевины алифатическими диаминами либо сополимеризацией диизоцианатов с олигомерными ди или полиаминами (поэтому термин… … Википедия
Spandex — fiber Spandex or elastane is a synthetic fibre known for its exceptional elasticity. It is strong, but less durable than natural Latex, its major non synthetic competitor. It is a polyurethane polyurea copolymer that was co invented in 1959 by… … Wikipedia
Pneumatic filter — A pneumatic filter is a device which removes contaminants from a compressed air stream. This can be done using a number of different techniques, from using a media type that traps particulates, but allows air to pass through to a venturi, to a… … Wikipedia
Micro-encapsulation — is a process in which tiny particles or droplets are surrounded by a coating to give small capsules many useful properties. In a relatively simplistic form, a microcapsule is a small sphere with a uniform wall around it. The material inside the… … Wikipedia
M-Phenylenediamine — Chembox new ImageFile = m phenylenediamine.png ImageSize = IUPACName = 1,3 diaminobenzene OtherNames = MPD Section1 = Chembox Identifiers CASNo = 108 45 2 PubChem = SMILES = Nc1cc(N)ccc1 Section2 = Chembox Properties Formula = C6H8N2 MolarMass =… … Wikipedia
