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胶凝剂

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Organic substances (diethylene glycol, glycol methyl ether and methyl ethyl ketone) were used as nonsolvent additives and N-methyl-2-pyrrolidone used as a solvent in membrane preparation. The effects of PPESK concentration, the type of additives and the NSA concentration in casting solution on the morphology and performance of the PPESK hollow fiber ultrafiltration membrane were systematically investigated.

以PPESK为膜材料,NMP为溶剂,水为凝胶剂,选用乙二醇甲醚、一缩二乙二醇和丁酮为非溶剂添加剂,系统研究了聚合物浓度、添加剂种类和含量对PPESK中空纤维超滤膜结构和性能的影响,制备了一系列具有不同孔径和通量的中空纤维超滤膜。

Department of Pharmaceutics,China Pharmaceutical University,Nanjing 210009,ChinaAbstract: Objective To evaluate the effect of 2 nonyl 1,3 dioxolane,a penetration enhancer,on in vitro permeation of diclofenac gel.

目的 探讨不同浓度新型促渗剂壬代环戊双醚对双氯芬酸钠凝胶的透皮吸收影响。

Aim To observe penetrability of paeonol from the gel in vitro.

目的研究丹皮酚凝胶剂中丹皮酚的经皮渗透性。

the gels can accord with preparation of pharmacopoeia quality standards.

制备的凝胶剂能够符合药典的质量标准。

Objective:To study the formulation,preparative method and quality control of calcium gluconate gel.

目的 :研究葡萄糖酸钙凝胶剂的处方组成、制备工艺及质量标准。

A sol containing SiO_2 particles was prepared by the base catalyzed hydrolysis and polycondensation of tetraethoxysilane through sol-gel process. A solution containing double-chain polymer of methyltriethoxysilane was also prepared under acid condition, as the introducer of water repellence.

通过溶胶-凝胶法,在碱性条件下水解缩聚正硅酸乙酯获得含有SiO2颗粒的溶胶;以甲基三乙氧基硅烷在酸性条件下水解缩聚获得双链聚合物溶液,作为疏水基团的引入剂。

Weak gel is composed of the low-concentration polymer and crosslinker, the crosslinking mostly occurs among the polymer molecule and little within them, the system is a three-dimensional reticulation, the viscosity is between the 100 mPa.s and 3000 mPa.s.

弱凝胶是由低浓度的聚合物和交联剂形成的、以分子间交联为主及分子内交联为辅的、粘度在100~3000mPa.s之间,具有三维网络结构的弱交联体系。

Influences of functionalities and amount of radiation sensitizer, and dose of radiation on the gel content were investigated.

研究了辐照敏化剂的官能度数、用量以及辐照的剂量对凝胶含量的影响。

The polymerization of sodium silicate and gel condensation of silicon dioxide are accelerated by using the firming agent.

用固化剂促进水玻璃的聚合和二氧化硅凝胶的缩合,拼用苯丙乳液作为辅助成膜物质。

Oxidized sodium alginate was made to react with gelatin A in the presence of sodium tetraborate solution to form covalently cross-linked hydrogels.

以四硼酸钠为交联促进剂,利用氧化海藻酸钠与明胶发生Schiff碱反应制备了化学交联水凝胶。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

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不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

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关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。