水性木器漆是一个特殊的体系,有别于传统的溶剂型木器漆。应对其配方中所用树脂及各种助剂作出合理选择,才能获得较好的综合性能。
Waterborne wood coatings is a special system different from conventional solvent - borne wood coatings. For the purpose of obtaining better result in the formulation have to be reasonably chosen.
摘要选择不同的混合溶剂体系考察部分相容的环氧树脂和丙烯酸树脂的自分层行为。
The self-stratifying behavior between epoxy resin and acrylic resin is investigated in different blend solvents.
目的合成高固体份、高分子量和高耐候性的丙烯酸树脂,选择与反应体系相匹配的混和溶剂并确定其最佳质量配比。
The acrylic resin with high solid content, high molecular weight and high weather resistance was prepared, the suitable solvents in this polymeric system and their best mixture ratio were selected.
该方法选择合适的溶剂,使整个反应保持在均相体系中进行,产物性状的稳定性较好;
The method selects the proper solvent, ensures that the whole reaction is performed in a homogeneous system, and has better stability of product characters;
目的:介绍一种快速选择和评价高速逆流色谱溶剂体系的方法。
Objective: to introduce a new way, which facilitates the systematic search and evaluation of the solvent systems suitable for high-speed countercurrent chromatography (HSCCC).
以丙酮为溶剂,30%H2O2为氧化剂,两种体系催化苯甲硫醚氧化反应分别可以循环使用两次和三次,但产物亚砜的对映选择性很低。
The two catalytic systems can be recycled twice and three times, respectively, with very low enantioselectivities for the oxidation of phenyl methyl sulfide with 30% H2O2 as oxidant in acetone.
以丙酮为溶剂,30%H2O2为氧化剂,两种体系催化苯甲硫醚氧化反应分别可以循环使用两次和三次,但产物亚砜的对映选择性很低。
The two catalytic systems can be recycled twice and three times, respectively, with very low enantioselectivities for the oxidation of phenyl methyl sulfide with 30% H2O2 as oxidant in acetone.
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