Dynamic design parameters of rubber floating slab track structure for urban mass transit 轨道交通橡胶浮置板式轨道结构动力设计参数研究
The microporous aerator which is made of refuse rubber is efficient in mass transfer, excellent in aerating and powerful in mixing. 以废旧橡胶为主要原料研制的微孔曝气器,传质效率高,曝气充氧性能优良,搅拌能力强;
The analysis is focused on the effects of the storey number of of the rubber, the mass of the intermediate steel plates and the structural parameters of the laminated rubber bearing. 文章着重考虑了叠层橡胶隔震器的层数,钢板质量以及橡胶层结构参数对叠层橡胶隔震支座的振动传递率的影响。
The adequate rubber/ resin ratio was found to be 60/ 40-70/ 30 ( mass ratio). 合适的橡塑比为60/40&70/30(质量比);
Low Mooney viscosity cis-1,4-polybutadiene rubber ( NiBR) polymerized by nickel system catalyst was prepared by adopting appropriate relative molecular mass regulator, optimizing catalyst formula and adding additive. 通过采用适当的相对分子质量调节剂、优化催化剂配方和加入添加剂的工艺合成了镍系低门尼黏度顺丁橡胶(NiBR)。
Determination of BHT in medical rubber plug by gas chromatography/ mass spectrometry 气质联用法测定医用橡皮塞中防老剂BHT
Experimental leakage simulation of the 2-level large-scale hollow metallic ring seal and 3-level rubber O ring seal was performed with several high precision leak detectors, based on helium mass spectroscopy, to verify leakage theory of multi-level series seal. 为进一步验证多级串联密封系统的泄漏理论和规律,分别进行了双道大型空心金属圈模拟试验和三道橡胶圈泄漏模拟实验,试验中综合采用了灵敏度很高的各种氮质谱检漏方法。
Study on the Vulcanizing Activity of IIR Rubber Mass used for Bike Inner Tube 提高IIR胶料硫化活性的研究
Finally, for feasibility of application of the new silicone rubber membrane reactor system to the continuous fermentation for ethanol production, the fermentation kinetics and the mass transfer behaviors of the membrane in the MBR were investigated experimentally. 最后,我们对新型硅橡胶膜反应器运用于连续发酵制备乙醇的动力学过程及膜渗透蒸发性能进行研究。
The thermal aging resistance of LDPE/ MVQ hybrid rubber decreased with the increase in the mass ratio of LDPE: MVQ. 随着LDPE与MVQ混炼胶的质量比的增加,材料的耐热老化性能下降。
Moreover, when the content of waste rubber reaches up to 9.4% ( by mass), the asphalt concrete has remarkable function to prevent icing on road surface. 当废橡胶掺量达到9.4%(质量分数)时,沥青混凝土具有明显的防路面冻结性能;
The preparation technology of carboxyl nitrile latex gloves was studied, and the processes of rubber mass compounding, film formation were also discussed in main. 研究了使用羧基丁腈胶乳制备工业手套,主要探讨了胶料配合,成膜等工艺流程。
Establish the mathematic model of the feeding and solid rubber transfer and fused mass transfer in the plasticating process of twin-screw rubber plasticator, and establish the best method of the raw rubber plasticating. 3. 建立了橡胶双螺杆塑炼机的塑炼过程中胶料的加料和固体输送、以及熔体输送的数学模型,确定了生胶塑炼的最佳方法。
It indicates that the latex viscosity, the number averge molecular weight and weight average molecular weight of rubber increased with increasing the monomer conversion, the relative molecular mass distribution width index is larger. 结果表明,随单体转化率提高,体系粘度增加,生胶的数均、重均分子量均增大,相对分子质量分布宽度指数变大,即分子量分布变宽。