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Acetanilide,hexane diacid and potassium hydrogen phthalate were used as additives to improve polyvinyl chloride crystallinity.

通过傅里叶转换红外光谱、差示扫描量热法及广角X射线衍射法研究了乙酰苯胺、己二酸和邻苯二甲酸氢钾与聚氯乙烯的相容性及对聚氯乙烯结晶度的影响。

In this paper,acetanilide,adipic acid and potassium hydrogen phthalate were chosen as additives to advance polyvinyl chloride to crystallize. The effects of compress mold,annealing temperature and time,additive property and loading on the crystallization,microscopicmorphology and mechanical properties of PVC were studied by means of wide angle X-ray diffraction,differential scanning calorimetry,fourier transform infrared spectrophotometer,scanning electron microscopeand tensile test.

本文利用乙酰苯胺、己二酸和邻苯二甲酸氢钾作为聚氯乙烯结晶改性的添加剂,通过广角X-射线衍射法、差示扫描量热法、傅立叶转换红外光谱、扫瞄电镜和万能电子实验机研究了热压、热处理温度和时间、添加剂结构和质量分数对PVC结晶、微观形态和宏观机械性能的影响。

A series of UV-cured AB crosslinked polymers based on vinyl-terminated polyethylene adipate polyurethane and methyl methacrylate were prepared.

用紫外光聚合方法制备出一系列端乙烯基聚己二酸乙二醇酯聚氨酯和甲基丙烯酸甲酯AB交联聚合物。

Ingredients: shea butter extract,whitening factor, moisturizing factor,lauric acid, tetradecanoic acid, gydroxysulfobetaine, distearic acid glycol ester.

成分:乳木果提取液,美白因子,保湿因子,月桂酸,肉豆蔻酸,羟磺基甜菜碱,乙二醇双硬脂肪酯。

Ingredients: lemon extract, honey,whitening_factor,moisturizing-factor,lauric acid, tetradecanoic acid, gydroxysulfobetaine, distearic acid glycol ester.

成分:柠檬提取液,蜂蜜,美白因子,保湿因子,月桂酸,肉豆蔻酸,羟磺基甜菜碱,乙二醇双硬脂肪酯。

Ingredients: honey extract , whitening_factor,moisturizing-factor,lauric acid, tetradecanoic acid, gydroxysulfobetaine, distearic acid glycol ester.

成分:柠檬提取液,蜂蜜,美白因子,保湿因子,月桂酸,肉豆蔻酸,羟磺基甜菜碱,乙二醇双硬脂肪酯。

Typically,0.2 mmol of cd solution, and 0.4 mmol of mpa solution were mixed in a 40 ml solution and the ph of the solution was 二氰基丙酸乙酯 to 10.0 by solution was palced in a three-necked flask and was deaerated.

通常情况下, 0.2浓度的镉环硫乙烷,和0.4浓度的mpa的混合溶液中40巯基丙酸甲酯溶液和ph值的溶液是调整,以10.0的溶液放置在是在三制作乙酸钙中,并除去溶液中的气体。

And the morphologies of lead tungstate crystal were different when different surfactants of polygycol 200 and cetyltrimethyl ammonium bromide were added in the experiments.

以钨酸钠和醋酸铅为原料,分别加以表面活性剂聚乙二醇200和十六烷基三甲苯溴化铵,用沉淀法合成出钨酸铅纳米晶和菱形微晶。

Comb-shaped copolymer of polycarboxylate containing carboxyl,sulfonic groups(-SO3M),polyethylene glycol(-OC2H4-) was synthesized by monomers of sodium 2-acrylamido-2-methylpropane sulphonate,acrylic acid,polyethylene glycol monoester acrylate under certain conditions.

本文通过2-丙烯酰胺-2甲基丙基磺酸钠与丙烯酸、聚乙二醇单丙烯酸酯在一定条件下发生聚合反应合成含有羧基、磺酸基(—SO3M)、聚氧乙烯链(—OC2H4—)等侧链的高性能减水剂PC。

Densities of glycine in glucose-water and sucrose-water mixed solvents have been measured to 298.15 K by an oscillating-tube densimeter. Apparent molar volumes, limiting partial molar volumes and number of hydration of glycine have been calculated. The transfer volumes from water to sugar-water mixtures have been obtained and discussed in terms of the structural hydration interaction model.

利用精密数字密度计测定了甘氨酸与不同组成葡萄糖-水、蔗糖、水混合溶剂构成的三元系溶液的密度,计算了甘氨酸的表观摩尔体积、极限偏摩尔体积和理论水化数,根据结构水合作用模型讨论了迁移偏摩尔体积的变化规律,并与乙二醇-水和丙三醇-水等多羟基体系作了比较。

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