硫化

With the help of dynamic mechanical thermal analysis, differential thermal analysis, analysis of curing behaviors and swelling test, the change of structure during the vulcanization of ebonite was analyzed. It is found that the chemical cross-linking in the ebonite trended to descend with degree of vulcanization, while the modification effects of polar groupings on the carbon backbone gradually increased, which dominated its physical and mechanical properties.

通过考察硫化时间对于硬质橡胶结构与性能的影响，结合DMTA、DSC、硫化特性分析、溶胀分析等方法，分析了硬质橡胶的硫化过程中结构的变化，认为在硫化过程中，随着硫化的进行，硬质橡胶中的化学交联作用有下降趋势，极性基团对于碳骨架的改性作用逐渐增加，并对硬质橡胶的物理机械性能起主要决定作用。

Masada, israel, april 8, 2009--an ultra-氯丁橡胶的硫化 jewish man prays at a historic desert fortress overlooking the dead sea as part of birkat hachama, the quot;blessing of the sun.quot

氯丁橡胶英文4月8日，以色列，马萨达---一位氯丁橡胶的硫化正统派的犹太人在一座古老的被废弃的堡垒上祈祷，同时远眺着死海，这是"祝福太阳"（birkat 什么是氯丁橡胶）仪式的一部分。

The CPE/LiAA and CPE/NaAA compounds have good curing properties. The tensile strength is about 30MPa when the in situ formed LiAA or NaAA content is 30phr.

其混炼胶的硫化速度快、硫化程度高；当其含量为30份时，硫化胶拉伸强度可达30MPa左右；硫化胶吸水膨胀速度快，浸水24小时后原位合成LiAA和NaAA改性CPE硫化胶的吸水膨胀率分别可超过120％和85％。

The effect of the SDT／S on the properties of NR compound was investigated The results showed that SDT／S plays the advanced role in NR compound,in order to keep the vulcanizate properties level as before may decrease some accerlator;the physical properties of overcured vulcanizate,the adhesion strength of optimum cure or overcured valcanizate between rubber and cord were improved by adding 2 phr of SDT／S to NR compound.

研究了SDT／S对天然胶胶料配方各项性能的影响。结果表明：在配方中使用SDT／S，对天然胶胶料起硫化促进作用，为保持原水平的硫化特性，可以适当减少促进剂的用量；可有效提高胶料过硫化条件下的300%定伸应力、扯断强度、邵氏硬度、撕裂性能、磨耗性能，可有效提高正硫化或过硫化条件下的胶料与帘线间的附着力。

The effects of various factors, such as sulfurization time, temperature, sulfurization pressure, the concentration of sulfureted hydrogen, the concentration of hydrogen, granularity of catalyst and so on, are studied.

利用程序升温硫化技术，对负载在不同载体上的Co和Mo系催化剂的硫化过程进行了研究，分析了活性组分Co、Mo在催化剂硫化过程中的形态变化以及催化剂的硫化机理，同时还探讨了载体在催化剂硫化过程中的作用。

Effect of sulfurization time, water content, oil as well as sulfur on spontaneous combustion of iron sulfide is investigated on the same sulfide formed from Fe2O3. It indicates that long sulfurization time, some oil, sulfur as well as good ventilation condition could accelerate oxidation and temperatures rise, but uncertain water content and poor ventilation condition lessen the spontaneous combustion tendency.

以Fe2O3的硫化产物为典型样品，研究了硫化时间、水分、油品、硫及通风条件对硫化铁氧化升温特征的影响，结果表明，硫化时间长，适量的油品和硫以及良好的通风条件能够加速硫化铁升温过程，而一定的水分及不良的通风条件则降低了硫化铁的自燃倾向性。

The sulfurization techniques condition of RSB-M sulfur-tolerant shift catalyst is studied with fixed-bed reactor.

本文利用固定床反应器研究了RSB-M型耐硫变换催化剂的硫化工艺条件，如：硫化时间、硫化温度、硫化氢浓度、氢气浓度、硫化压力、催化剂粒度等因素对耐硫变换催化剂硫化度的影响。

The grafting effect and mechanism was charac- terized by FTIR,The heat stability of unvulcanized and dynamical mechanical proper- ty of vulc- lcanizates of SBR and SBR-g- were tested by TG and DMA respectively. medium-resistance properties of SBR and SBR-g- vulcan- izates were also investigated.The results showed that addition of St accelerated GMA grafting onto SBR and control the decomposition of SBR. When the conditions were GMA/St/DCP was 8/4/0.3 and grafting temperature was 160℃.

结果表明，St对提高接枝率、抑制SBR的降解起到了积极的作用；SBR中聚丁二烯的α－H和双键共同参与了GMA/St熔融接枝反应；当SBR/GMA/St/DCP=100/8/4/0.3、接枝温度为160℃时，SBR的接枝率较高（23.78%），SBR–g–硫化胶的拉伸强度和撕裂强度比SBR硫化胶的分别提高了119%和27.4%；SBR–（GMA--co-St）未硫化胶的Tg比SBR未硫化胶的高，而耐热分解性能优于SBR未硫化胶；SBR–g–硫化胶在低温条件下的刚性增大、弹性降低、具有较低的内耗，在常温下的阻尼性能较高，但弹性性能保持较好；SBR–g–硫化胶的耐热稳定性以及耐非极性有机溶剂的性能优于SBR硫化胶。

A good balance between the dynamic property and the thermal-oxydative ageing property on the blend vulcanizates were obtained when curing system is SEV and the S/CZ/DM ratio of 1.5/1.5/0.5;There was a good balance among tensile strength and heat build-up and damping property on blend vulcanizes filled with moderate size carbon black;The mechanical properties of vulcanizate filled with N660/N330 and N660/N990 were medium between two carbon black filled individual.

补强填充体系对NR/ENR硫化胶的性能有较大的影响，选择粒径适中的炭黑品种N660作为补强剂，硫化胶在拉伸强度、疲劳生热和减震方面可以获得较好的平衡；N660/N330和N660/N990两种填充体系硫化胶的力学性能，基本上是单用一种炭黑所得硫化胶力学性能的加权平均；N660/白炭黑(40/20)和N660/碳酸钙(45/15)填充体系硫化胶的力学性能与相同用量下N660单用时的相当，而N660/陶土填充体系硫化胶的力学性能较差。

Masada, israel, april 8, 2009--an ultra-氯丁橡胶的硫化 jewish man prays at a historic desert fortress overlooking the dead sea as part of birkat hachama, the quot;blessing of the sun.quot

氯丁橡胶英文4月8日，以色列，马萨达---一位氯丁橡胶的硫化正统派的犹太人在一座古老的被废弃的堡垒上祈祷，同时远眺着死海，这是&祝福太阳&（birkat 什么是氯丁橡胶）仪式的一部分。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐