天然橡胶

Premise Liquefied petroleum gas is derived from oil gas, natural gas, the gas production of refinery and petrochemicals. The main components are dimethylmethane, propylene, butane, butylene and such low class hydrocarbon. It's a gas with achromaticity and transparence; LPG is hardly dissolved in water, but dissolved in ethanol and aether, it can dissolve gas production, propagation oil and caoutchouc.

液化石油气（liquefied petroleum gas，LPG）是石油伴生气、天然气、炼油厂及石油化工厂的气体产品，经分离精制而来，其主要成分为丙烷、丙烯、丁烷、丁烯等低分子烃；无色透明，带有微弱的臭味；难溶于水，溶于乙醇和乙醚等，并能溶解石油产品，动植物油和天然橡胶。

The effect of acid, base and salt on the thermal stability of chlorinated natural rubber made from latex was analyzed by using chemical analysis, thermal aging experiments with UV spectroscopy analysis and thermal analysis.

采用热老化实验结合紫外光谱分析和热分析，分析了酸、碱及盐对胶乳法氯化天然橡胶热稳定性的影响，并讨论了酸、碱及盐对CNR热降解的影响机理。

The effect of cobalt and nickel p-hydroxy benzoate s on the adhesion between NRand brass was studied.

研究了对羟基苯甲酸钴和对羟基苯甲酸镍对天然橡胶与黄铜粘合的影响。

The white carbon black formed good thermal conductivity network with the molecular chain of the rubber, and the dispersion of the white carbon black in the natural rubber matrix was improved when the surface of the white carbon black was treated with Si-69, and the thermal diffusivity of the rubber was improved greatly.

白炭黑在Si-69的表面改性作用下，能与胶料分子链形成较好的导热网络结构，使其在天然橡胶基质中的分散程度得到改善，从而使胶料的热扩散系数得以提高。

Three different types of hoses are available for use in the Abaque Series pump: Natural rubber Single-stage single suction in-line centrifugal pumps (generally resistant to diluted acids and alcohols) Buna or NBR (wear resistant to oily products) and EPDM (high chemical resistance especially with concentrated acids alcohols and ketones).

三种不同类型的软管可在Abaque系列泵使用：天然橡胶，丁腈橡胶和丁腈橡胶，三元乙丙橡胶（高耐化学性，尤其是浓酸，醇酮）。

We also engage in healthcare products and the export of foodstuff, oil, and other farm produce and local specialties and import activities of caoutchouc, apparatus and equipment.

兼营粮油食品、农副土特产品的出口，及天然橡胶、仪器设备等的进口业务。

The paper appliedEngle-Granger technique of cointegration for testing the cointegration between the futures pricesand the spot prices of China's Aluminum and Caoutchouc futures contracts respectively,andprovide their Error Correction Model.

本文利用 Engle-Granger 检验法分别检验了中国铝和天然橡胶两个期货品种的期货价格和未来现货价格的协整性，并给出了他们各自的误差修正模型。

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。

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 tire is prepared by using a natural rubber instead of a synthetic rubber; an inorganic filler and/or a biofiller instead of carbon black; vegetable oil instead of petroleum oil; and natural fiber instead of synthetic fiber so that the tire comprises a non-petroleum raw material in an amount of at least 75 % by weight based on the total weight of the tire.

本发明提供一种利于环境的轮胎，其中，原材料是从非石油资源中获得的，替代现有轮胎中使用的从石油资源中获得的原材料的部分或全部，用天然橡胶替代合成橡胶、无机填料和/或生物填料替代炭黑、植物油脂替代石油类油、天然纤维替代合成纤维等，非石油资源的原材料构成轮胎总重量的75重量％以上。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。