allophanate

常見例句

• The content of free-TDI in prepolymer is lowered by directly synthesizing allophanate based on the adjusted formulation and process.
  通過調(diào)整配方和工藝,由脲基甲酸酯直接合成法降低預聚物中游離TDI的含量。
• The satisfactory tensile strength of block copolymers may be attributed to the formation of allophanate crosslinks by the introduction of excess TDI.
  嵌段共聚物令人滿意的拉伸強度歸于過量的TDI所形成的脲基甲酸酯交聯(lián)鍵。
• The presence of allophanate crosslinks can be proved by the highest molecular weight of 20 series copolymers, followed by 40 ( in Table 2).
  脲基甲酸酯交聯(lián)鍵可以從20系列的共聚物的分子量最高，其次是40系列的分子量而得到證實。
• The factors influencingparticle size of the dispersions were investigated by DSL and TEM. The contents ofurethane and allophanate linkages in the polymer were analyzed by 1H-NMR.
  研究了影響水性聚氨酯分散體粒徑尺寸的因素,用1H-NMR表征了合成水性聚氨酯中氨基甲酸酯基和脲基甲酸酯基的含量。
• In order to achieving optimal mechanical property, the molar ratio of TDI and total polyesters was set to be 2.1/1 to form some allophanate crosslinks point as shown in table X.
  為了獲得最優(yōu)的力學性能，TDI和總的聚酯的摩爾比定位2.;1/1以形成一些脲基甲酸酯的交聯(lián)點，如圖X（數(shù)字）所示
• As the molar ratio of TDI to polyols was fixed at 2.1/1, relative more excess TDI was applied for 20 based copolymers which would cause more allophanate crosslinks.
  由于TDI與二醇的摩爾比固定為2.;1/1;對20系列來講，過量的TDI就會多些，這將導致形成更多的脲基甲酸酯交聯(lián)鍵。
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