Methylene diphenyl diisocyanate - Wikipedia
Methylene diphenyl diisocyanate (MDI) is an aromatic diisocyanate. Three isomers are common, varying by the positions of the isocyanate groups around the rings: 2,2′-MDI, 2,4′-MDI, and 4,4′ …
금호미쓰이화학 - kmci.co.kr
이성체 및 다핵체를 포함하지만, 이것을 정제하면 Monomeric MDI (혹은 Pure MDI )와 Polymeric MDI (혹은 Crude MDI)로 분리된다. Monomeric MDI는 상온에서 백색고체이기 때문에 …
금호미쓰이화학 - kmci.co.kr
MDI정제공정내 증발기에서 Crude- MDI 중 크기와 분자량이 가장 작은 단량체(Monomer)만을 증발시킨 후 재응축하여 최종제품인 MDI-PH를 생산하고 증발되지 않은 나머지 Crude-MDI는 …
Methylene diphenyl diisocyanate (MDI) is an organic chemical which is one of the main components for the production of polyurethanes. Crude MDI is still only commercially …
二苯基甲烷二異氰酸酯 Methylene Diphenyl Diisocyanate
根據不同的製程和應用需求，MDI可以分為三種類型：PURE MDI（純MDI，Pure MDI）、Crude MDI（粗MDI，Crude MDI）和Modified MDI（改性MDI，Modified MDI）。 PURE MDI具有 …
Methylene Diphenyl Diisocyanate | MDI | Crude - Arpadis
Methylene Diphenyl Diisocyanate is produced by a 4 steps reaction based on benzene as feedstock. There are 3 isomers of MDI : 2,2-MDI, 2,4-MDI, and 4,4-MDI. The 4,4 isomer is …
Methylene diphenyl diisocyanate (MDI) | ProChema
Aromatic isocyanate that consists of a mix of isomers, 4,4′- 2,4′- and 2,2′-diphenylmethane diisocyanate. It is commonly known as crude or polymeric MDI. The isomer 4,4′ …
永聖貿易股份有限公司
Crude MDI特性 * 在乾燥通風、溫度在 5∼35℃的地方保存 * 作為Polymeric MDI 產品中最常用的產品，可用於硬質品和半硬質品等多種用途
MDI简介及生产工艺综述 - 百度文库
国 外习惯按最早 UCC 公司命名的商品名称，叫做 PAPI，目前国内外许多厂家和生产者又称其 为 PMDI(Polymeric MDI，聚合 MDI)或 C-MDI (Crude MDI, 粗 MDI)。 PMDI 是褐色透明状液体， …
【杨向宏专题】MDI的上游和下游 - 搜狐
2017年9月30日 · 俗称的 MDI 实际上是粗 MDI （又叫 Crude-MDI， PAPI，聚合 MDI）。 纯 MDI 是指 MDI 的单体；粗 MDI 是单体二聚体三聚体的混合物；此外还有改性 MDI，是使用纯 MDI …