1) chemical modification of lignin
木质素化学改性
2) modified lignin
改性木质素
1.
Making use of modified lignin slow-release ammonium phosphate can eff ectively complex the activitive Fe in the soil and slow down its activity so as to both prevent the rapidly available phosphorus from being fixed and maintain t he soil s phosphorus elements at a higher level.
利用改性木质素缓释磷铵 ,可以有效地络合土壤活性铁 ,降低其活性 ,从而阻止土壤速效磷被固定 ,使土壤磷素维持在较高的水平。
4) modified lignin resin
木质素改性树脂
5) modified alkali lignin
改性碱木质素
1.
The absorption loss of surfactant ( especially for ORS-41) on the formation rock can be reduced significantly ( more than 50% ) by the preflush or in admixture with modified alkali lignin (HML) , the solution of HML mixed with ORS-41, alkali and polymer can reach super-low oil-water interfacial tension.
改性碱木质素(HML)作为牺牲剂可以显著地减少主表面活性剂石油磺酸钠ORS-41的吸附损失(减少量>50％),HML能和石油磺酸钠、碱、聚合物配合将油水界面张力降至超低范围,以0。
2.
With foam formation once,two kinds of alkali lignin based rigid polyurethane foams (RPUF) were prepared with respectively adding the refined alkali lignin or modified alkali lignin.
本文以麦草碱木质素为原料,经过精制和环氧氯丙烷改性后得到精制碱木质素和改性碱木质素,采用一次发泡法分别合成了两种碱木质素基硬质聚氨酯泡沫(RPUF)。
补充资料：化学火箭
利用化学火箭发动机推进的火箭（见火箭发动机）。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条