胶乳

The structure of BNRL and the mechanism of Natural Rubber Latex's bromination were studied by Infrared Spectroscopy and Nuclear Magnetic Resonance.

结果表明：溴原子已经接到天然橡胶分子链上，其C－Br键对应的红外光谱位置分别为1088cm-1、956cm-1、908cm-1、774cm-1；天然胶乳的溴化反应机理与BNRS的相似。

However, the first one enzyme 1-deoxy-D-xylulose 5-phosphate synthase gene and the second one enzyme 1-deoxy-D-xylulose 5-phosphate reductoisomerase gene in MEP pathway had been reported and expressed in the latex of rubber tree, indicating that MEP pathway may be involved in rubber biosynthesis.4 - hydroxy -3 - methyl -2 -- butenyl -4 - phosphate reductaseis the last enzyme that catalytic 4 - hydroxy -3 - methyl -(2E)- butenyl -4 - phosphate to generate isopentenyl pyrophosphate.

然而已有报道MEP途径中第1个酶1-脱氧-D-木酮糖-5-磷酸合成酶（1-deoxy-D-xylulose 5-phosphate synthase，DXS）基因和第2个酶1-脱氧-D-木酮糖-5-磷酸还原酶（1-deoxy-D-xylulose 5-phosphate reductoisomerase ，DXR）基因在橡胶树胶乳中的表达，这表明MEP途径可能参与橡胶的生物合成。4-羟基-3-甲基-2--丁烯基-4-磷酸还原酶（4-hydroxy -3-methyl-2--butenyl-4-diphosphate reductase，HDR）是异戊烯基焦磷酸合成途径之一甲基赤藓糖磷酸（methylerythritol phosphate，MEP）途径中的最后一个酶，催化4-羟基-3-甲基-(2E)-丁烯基-4-磷酸生成异戊烯基焦磷酸。

This article introduces the research progress in the improvement of the tradition wet strength agent and the development of new environment-friendly wet strength agents such as the polyacetal, the glutaric dialdehyde, the high polymer latex and so on.

介绍了国内外改进传统湿强树脂和聚缩醛类、戊二醛、高分子胶乳类等新型环境有好型湿强剂的研究现状及其作用机理，并且指出环境友好型湿强剂是今后研究发展的方向。

The method comprises conducting surface treatment forCNTs to make it hydrophilism: mixing it with dispersant and deionized water and getting the CNTs-water slurry; modifying the pH value to 9~12; mixing with natural latex and getting the natural rubber liquid latex added with CNTs.

制备方法为首先对CNTs进行表面处理，使其具有亲水性：然后将其与分散剂、去离子水混合，得到CNTs-水悬浮液；调节该悬浮液的pH值到9～12；最后与天然胶乳均匀混合，得到添加CNTs的天然橡胶液体浆料。

The interpolymer products are useful, for example, in applications such as hot melt adhesives, and also for impact, bitumen and asphalt modification, adhesives, dispersions or latexes and fabricated articles such as, but not limited to, foams, films, sheet, moldings, thermoforms, profiles and fibers.

共聚体产物用于，例如应用如热熔粘合剂，也用于冲击，石油沥青和沥青改性，粘合剂，分散体或胶乳和制造制品如，但不限于泡沫，膜，片，模塑件，热成形物，型材和纤维。

With unique thermal property attributes, the interpolymer product is useful, for example, for impact, bitumen and asphalt modification, adhesives, dispersions or latexes and fabricated articles such as, but not limited to, foams, films, sheet, moldings, thermoforms, profiles and fibers.

由于其独特的热性质，该共聚体产生能用于，例如，抗冲材料、沥青及柏油的改性、粘合剂、分散液或胶乳及制备物件，比如，泡沫材料、膜、片材、模制品、热成形材料、型材及纤维，但不限于此。

The simulation result,which is obtained by applying the method to control the temperature of latices polyreactor,shows static error is effectively reduced and the robustness of the new approach in controlling temperature shock in the process of p...

将该控制器用于胶乳聚合反应釜的温度控制，仿真结果表明该控制器可以有效地消除静态误差，并对聚合反应生产过程中的温度骤变有很好的鲁棒性，实际应用效果也表明了该方法的优越性。

Immune genetic algorithm ; fuzzy neuron ; latices ; polyreactor ; temperature control

免疫遗传算法；模糊神经元；胶乳；聚合反应釜；温度控制。

The emulsifiers used were compounded systems composed of anionic and nonionic surfactants. Other conditions such as initiator, reaction temperature, and the amount of MAA also influenced the properties of the latices.

同时，软硬单体比例、具有亲水功能的甲基丙烯酸MAA单体的用量、反应温度和引发剂的用量等对胶乳的粒径和应用后织物的性能都有不同程度的影响。

The experiment result shows that favorable colour development performance can be achieved for the adhesive with polyvinyl alcohol as major component and the waterproof quality can be improved when the carboxyl tetraphene latices was mixed into the adhesive in a certain proportion.

实验发现，使用聚乙烯醇为主体的胶粘剂可使热敏纸获得良好的发色性能，胶粘剂中混入一定比例的羧基丁苯类胶乳可以使热敏纸的防水性能得到改善。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。