三聚氰胺-甲醛树脂

The preparation and characterization of trimethylamine modified glutaraldehyde-crosslinked chitosan resin activated with cyanuric chloride,and its infrared spectral properties were studied.

用水相均匀交联法制备戊二醛交联壳聚糖树脂，以三聚氯氰为活化剂，合成了三甲胺修饰戊二醛交联壳聚糖树脂，研究了该树脂的红外光谱特征及吸附性能。

Amine terminated polyurethane resin has been synthesized with diethylene triamine and isocyanate terminated polyurethane resin mentioned above.

4利用二乙烯三胺和自制的端异氰酸酯聚氨酯预聚物合成端氨基聚氨酯树脂。

In this study, Japanese cedar, Ma bamboo and Makino bamboo were liquefied in polyethylene glycol/glycerol co-solvent with H2SO4 or HCl as catalyst. The liquefied woody materials were blended with PMDI (4,4'-Diphenylmethane diisocyanate;MDI) to prepare the PU foams. The effects of preparation conditions of PU resin on the properties of PU foams were investigated.

中文摘要本研究将柳杉(Cryptomeria japonica； Japanese cedar)、麻竹(Dendrocalamus latiflorus； Ma bamboo)及桂竹(Phyllostachys makinoi； Makino bamboo)等木质材料以聚乙二醇及丙三醇之混合液为溶剂，H2SO4及HCl为催化剂进行液化处理，并将其液化木质材料与4，4'-二苯甲烷二异氰酸酯反应制造聚胺基甲酸酯发泡体，探讨PU树脂调配条件对PU发泡体性质之影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。