您要查找的是不是:
- This allyl type resin is a highly transparent, colourless material. 这种烯丙基型的树脂是一种高度透明的、无色材料。
- Resin acid was hydrogenated used nano-Ni as catalyst. 使用纳米镍催化剂进行树脂酸的氢化反应。
- Nano-Ni was first used as catalyst for disproportionation of resin acid. 将纳米镍催化剂首次应用于树脂酸的歧化反应中。
- Resin catalyst loaded Al was prepared by 732 ion exchange resin and AlCl3. The solvent was ethanol ,and H type resin was dried for 35h. 采用732 型阳离子交换树脂作为催化剂载体,制备得到负载铝的树脂催化剂,采用液固溶剂法,选用无水乙醇作为溶剂,H 型树脂干燥35h 后进行制备。
- By the two-steps synthetic process, the new type resin for the need of developing printing ink could be prepared with rosin, nonyl phenol and formaldehyde. 摘要采用二步法合成工艺,以壬基酚和松香及甲醛为主要原料,合成了松香改性酚醛树脂。
- It was found that isomerization existed between dihydropimaric\isopimaric-type resin acids due to the shift of double bonds. 发现在二氢海松酸\\异海松酸型树脂酸的分子间存在因双键移位而引起的异构现象。
- Fresh soap its components, trace alkaloids, inulin and plant-rich alcohol, as well as chamber and dandelion friedelin diterpene resin acids and other acids have been. 其成份食皂、微量生物碱、菊糖及植物富醇,还有木栓硐及蒲公英萜酸已酸脂等。
- Conjugated unsaturation of abietic resin acids can be removed through catalytic hydrogenation to overcome the shortcomings of oxidation and color degradation in rosin. 将松香催化加氢可去除枞酸型树脂酸的共轭不饱和性,克服其易于氧化变色的缺点。综述了40多年来国内外对松香催化加氢反应的研究进展。
- In addition, each unit holds down the unnecessary vibration by the fact that the front sub baffle of the rubber type resin is installed, has decreased acoustic unnecessary radiation with flash surface idea. 此外;各单位召开了不必要的振动事实;即前面分折的橡胶型树脂装置;减少不必要的声辐射表面闪光的想法.
- The author analyzed the extractive matter, and confirmed their acid number was 161.8-169.6, the content of resin acid was 9.0%-12.5%and the content of fatty acid was 80.4-85.6%. 分析测定萃取物酸值为161.;8-169
- The results showed that resin acids of pine gum produced the intermolecular hydrogen transfer reaction, and the dehydrogenation of resin acids was promoted by the solvent effect of terpenes. 在此基础上对松脂歧化反应过程进行了初步探讨,认为松脂原料中的酸性物质发生分子间氢转移反应,萜烯烃的存在促进了脱氢反应的进行;
- quaternary alkyl ammonium type resin 季烷基铵型树脂
- nonionic macro-reticular type resin 非离子性巨大网状结构树脂
- quaternary alkylammonium type resin 烷基季铵型树脂
- centrifugal type resin sand reclamation unit 离心式树脂砂回收装置
- sulfonated polystyrene type resin 磺化聚苯乙烯型树脂
- A MNDO study on abietic-type resin acids in rosin 松香中枞酸型树脂酸的MNDO研究
- In a printer, the removable type element. 印刷机上可拆卸的打印部件。
- Keywords Pinus elliottii;oleoresin;resin acid; 湿地松;松脂;树脂酸;
- Do you type the letter or take a rest? 你打信呢,还是休息呢?