The Application Status of Cellulose Triacetate Film Base in Photographic Materials 三醋酸纤维素酯在感光材料中的应用现状
Solid superacid was used as the catalyst in the synthesis of glycerol triacetate. 以固体超强酸为催化剂,对冰醋酸和甘油的酯化反应进行了研究。
Cellulose triacetate, plasticized, in primary forms ( excl. in sheets, films, rods or tubes) a graduated rod dipped into a container to indicate the fluid level. 三乙酸纤维素,增塑的,原状(不包括片状、薄膜状、棒状或管状)放在容器中显示液体高度的棒状仪器。
Study on synthesis of glycerol triacetate using p-toluensulphonic acid supported by activated carbon as catalyst; 研究了把稀土硫酸盐固载于该材料上作为酯催化剂催化合成三醋酸甘油酯。
Trisodium N-hexadecyl ethylenediamine triacetate was synthesized from anhydrous ethylenediamine, 1-Br-hexadecane and chloroacetic acid. This chemical is often used for improving the stability of anionic surfactant in hard water. 用无水乙二胺、1-溴-十六烷和氯乙酸为原料,合成N-十六烷基乙二胺三乙酸钠,以提高阴离子表面活性剂在硬水中的稳定性。
Degradation of cellulose triacetate film caused by hydrolysis is a delicate problem in the preservation of archive films. 醋酸纤维胶片因水解而衰变的问题,是影像保存部门的一个重大技术难题。
In the presence of solid superacid catalyst SO 4 2-/ Fe 2O 3 TiO 2, The glycerol triacetate was synthesized from glacial acetic acid and glycerol. 采用固体超强酸SO42-/Fe2O3-TiO2为催化剂,由冰醋酸和甘油反应合成甘油三醋酸酯。
Total rate constants k of acidity hydrolysis of glycerol triacetate were determined by acid alkali titration. 采用酸碱滴定法测定了甘油三乙酯酸性水解的总速率常数k。
The red sensitivity of dichromated cellulose triacetate ( DCCTA) holographic re-cording material without any dye sensitization is reported. 报道不经任何染料敏化处理的重铬酸盐-三醋酸纤维素酯(DCCTA)全息记录材料的红敏性。
This new plasticizer was used in the production of cellulose acetate fiber filter bar for cigarette and gotten almost the same results like using glycerol triacetate plasticizer. 所得产物作为增塑剂试用于卷烟用醋酸纤维滤咀棒的生产,效果与用三醋酸甘油酯作增塑剂基本一致。
The tensile strength and elastic modulus of the thin film of liquid crystalline cellulose triacetate with double axial orientation can reach up to 310 MPa and 6.3 GPa respectively. 双轴取向液晶三乙酸纤维素薄膜的拉伸强度和弹性模量分别可高达310MPa和6.3GPa;
The properties of SL-080 grafted membrane separator and hydrocellulose triacetate ( HCTA) membrane separator had been studied as a zinc dendrite growth barrier in secondary cells. 本文研究了SL&080接枝膜与水化三醋酸纤维素膜在锌二次电池中阻挡枝晶的性质。
Glycerol triacetate was synthesized from glycerol and acetic acid using p-toluene sulphonic acid as catalyst and toluene as water-carrying agent. 以丙三醇和乙酸为原料,用对甲苯磺酸作催化剂,甲苯为带水剂,合成三醋酸甘油酯。
This kind of catalyst was used in catalytic synthesis of glycerol triacetate for the first time. 本文研究了活性炭负载对甲苯磺酸催化剂的制备方法及催化性能,并首次将其应用在三醋酸甘油酯的合成工艺上。
Study on characteristics of nanofiltration membrane from cellulose acetate and cellulose triacetate blends CA/CTA共混不对称纳滤膜分离特性的研究
In this paper, a new holographic recording material: dichromated-cellulose triacetate is presented. 本文报道一种新的全息记录材料:重铬酸盐-三醋酸纤维素酯组成的感光介质。
In the optimization of process conditions for glycerin triacetate synthesis and the formulas of water stabilizer, some satisfied achievements were obtained by using orthogonal design, uniform design and statistic analysis. 运用正交设计、均匀设计和统计分析的方法进行了三醋酸甘油酯合成工艺条件的优化研究以及水质稳定剂的配方优化研究,取得了较好的效果。
The Preparation of Chiral Column of Cellulose Triacetate Coated on Small Pore Silica Gel and the Separation of Enantiomers 以小孔硅胶为载体的纤维素三醋酸酯手性柱的制备及对映体的分离
Application of sodium ammonium triacetate as a non-phosphorus catalyst in crease-resist finishing of cotton with BTCA 氨三乙酸钠无磷催化剂在BTCA防皱整理中的应用
The variety of environment friendly catalysts for synthesis of glyceryl triacetate were reviewed in detail including the immobilized p-toluene sulphonic acid, aminosulfonic acid, inorganic chloride, cationic exchange resin, rare earth solid acid, solid superacid, heteropolyacid and zeolite. 详细评述了合成三醋酸甘油酯使用的环境友好催化剂品种,包括固定化对甲苯磺酸、氨基磺酸、无机氯化物、离子交换树脂、稀土固体酸、固体超强酸、杂多酸及分子筛;
Determination of Ester Content in Glycerin Triacetate 三醋酸甘油酯的酯含量分析
Glycerin triacetate(ⅰ) was synthesized from glycerin(ⅱ) and acetic anhydride(ⅲ) in the presence of expandable graphite(ⅳ). 以甘油和乙酸酐为原料、可膨胀石墨为催化剂合成了三乙酸甘油酯。
Using glycerine and acetic acid as raw materials and in the presence of catalyst, glycerin triacetate was synthesized through esterification, dehydration and underpressrue distillation. 利用酯化反应基本原理,以丙三醇和醋酸在催化剂的作用下进行酯化反应,经脱水、减压精馏得甘油三醋酸酯产品。
Studies on Catalytic Synthesis of Glycerol Triacetate by Europium Doping Solid-supported Superacid 铕掺杂固载超强酸催化合成三醋酸甘油酯的研究
The dynamics of mutual dissolution of components in the nitrate cellulose ( NC) glycerol triacetate system was studied for various degrees of the NC etherification ( nitrogen contents 11.2%~ 13.0%). 研究了含氮量在11.2%~13.6%范围的硝化棉(NC)和三醋酸甘油酯体系溶解及分子扩散动力学过程。
Synthesis of siw_ ( 12)/ mcm-41 catalyst and its performance in synthesis of glyceryl triacetate SiW(12)/MCM-41催化剂的合成及对三醋酸甘油酯反应的影响
Preparation of Cellulose Triacetate Stationary Phase and Separation of Chiral Compounds by HPLC 醋酸纤维素液相色谱固定相的制备与手性拆分
So, this paper focuses on the preparation of FO membranes, by phase inversion method, with cellulose triacetate as the membrane materials, in order to examine the influencing factors in the process of preparation in detail. 因此,本文立足于正渗透膜的制备,以三醋酸纤维素为膜材料,利用相转化法制备正渗透膜,详细考察了正渗透膜制备过程中的影响因素。