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- Bis(trichloromethyl) carbonate as the phosgene substitute in the preparation of 4, 4'- diphenylmethane diisocyanate is introduced. 研究了用二（三氯甲基）碳酸酯代替传统的光气进行羰基化反应合成二苯甲烷-4，4’-二异氰酸酯的反应。
- carbodiimide modified diphenylmethane diisocyanate 碳化二亚胺改性二苯基甲烷二异氰酸酯
- Keywords diphenylmethane diisocyanate;brine;extraction;simulation; 盐水;萃取;模拟;
- Keywords Diphenylmethane Diisocyanate;process;development;market; 二苯基甲烷二异氰酸酯;工艺;进展;市场;
- Diphenylmethane diisocyanates (MDI) is an important material used for manufacturing polyurethanes. 摘要二苯甲烷二异氰酸酯(MDI)是重要的聚氨酯原料，市场需求量很大。
- Synthesis of 4,4＇ - Diphenylmethane Diisocyanate Bis(trichloromethly)Carbonate 夏敏, 二苯甲烷-4,4’-二异氰酸酯的非光气合成法
- Keywords wheat straw oxygen alkaline lignin;modifying;polyglycol;toluene diisocyanate;diphenylmethane diisocyanate;polyurethane; 麦草氧碱木素;改性;聚乙二醇;二异氰酸酯;聚氨酯;
- Diphenylmethane diisocyanate 二苯基甲烷二异氰酸酯
- Diphenylmethane would have a two proton peak. 二苯甲烷必定有一个二质子的峰。
- HDI (Hexamethylene diisocyanate) is one of special aliphatic diisocyanate. HDI(六亚甲基二异氰酸酯)是特种脂肪族二异氰酸酯。
- Polyurethane elastomers based on glycols(PEA,PPG PTMG), diisocyanate(TDI) and chain extender(E-300) were prepared. 以多元醇(PEA,PPG,PTMG),PDI,E 300为原料,制备了PU弹性体。
- Quantitative analysis of 1,5 naphthalene diisocyanate(NDI) was carried out by derivation-UV spectrophotometry. 采用衍生化-紫外分光光度法定量分析了1,5-萘二异氰酸酯(NDI)。
- Diphenylmethane (DPM) is a useful chemical material in spice production and an important intermediate in drug and organic synthesis. 二苯基甲烷,通常用于香料工业,同时又是生产染料、医药的重要中间体。
- Polyether-type isocyanate prepolymers are prepared with polyether polyols and tolylene diisocyanate. 采用聚醚多元醇和甲苯二异氰酸酯合成了聚醚型异氰酸酯预聚体。
- The HPPSAs were synthesized by the condensation copolymerization of polymer glycol, diisocyanate and extender. 该压敏胶是由二异氰酸酯与多元醇的混合物进行反应生成预聚体,再经扩链制得的。
- A new kind of polyoxazolidone was prepared by tolylene diisocyanate and diglycidyl p-phthalate. 采用甲苯二异氰酸酯与自制的对苯二甲酸二缩水甘油酯生成聚口恶唑烷酮。
- The method that analyzes the purity of toluene diisocyanate by capillary gas chromatograph was established. 建立了用毛细管气相色谱法测定甲苯二异氰酸酯纯度的方法。
- The cross linking modification of polyvinyl alcohol (PVA) adhesive was explored by adding diisocyanate (TDI) and borax. 探讨了硼砂和甲苯二异氰酸酯(TDI)对聚乙稀醇(PVA)胶水进行交联改性。
- By the modification of hexamethylene diisocyanate (HDI),a new curing agent HDI oligomer was prepared. 合成了以HDI改性的烯类单体齐聚物。
- The water-borne polyurethane was based on polyester diol,and toluene diisocyanate etc. 以聚酯多元醇、甲苯二异氰酸酯为主要原料合成了水性聚氨酯乳液。
