橡胶胶乳

Latex, a material obtained from rubber trees, is a natural polymer of isoprene.

从橡胶树中获得的胶乳是一种天然的异戊二烯聚合物（就是我们所说的天然橡胶）。

Latex contains about 35% of the rubber components.

胶乳中含有35％左右的橡胶成分。

Woon Sung-Liang is a Rubber and Latex Consultant with about 25 years of experience.

宋登良是一种橡胶和胶乳的顾问与约25年的经验。

At present, natural latex rubber condoms main products, both manufacturers are also suppliers.

目前主营天然胶乳橡胶安全套制品，既是生产厂家同时也是供应商。

The company's main: natural rubber and latex, synthetic rubber and products, engineering plastics, chemical raw materials and products.

公司主营：天然橡胶及胶乳、合成橡胶及制品，工程塑料、化工原料及产品。

Purposes: natural rubber, synthetic rubber and latex of the active agent.

用 途：天然橡胶、合成橡胶及胶乳的活性剂。

Increase production is always the main target in rubber tree cultivation.

提高胶乳产量一直是橡胶栽培及生产的主要目标。

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。

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。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了