等离子表面处理对氟橡胶粘合性能的影响

研究了等离子处理对氟橡胶表面能、硫化氟橡胶与硫化氟橡胶之间的粘合性能、氟橡胶与金属之间的粘合性能、硫化氟橡胶与金属之间的粘合性能的影响,证明了等离子处理对氟橡胶的粘合性能是有促进作用的。     

耐机油氟橡胶的研制

本文研究了填料、助剂对氟橡胶的影响,采用高分子量和低分子量并用技术研制了耐机油性氟橡胶。试验结果表明,当高分子量氟橡胶F—26和低分子量氟橡胶TP—2配比为75/25时,氟橡胶的机械性能和耐油性能最佳。     

等离子表面处理对过氧化物硫化氟橡胶粘合性能的影响

研究了常压大气等离子处理对过氧化物硫化氟橡胶表面能、接触角的影响,对过氧化物硫化氟橡胶胶料之间粘接性能以及过氧化物硫化氟橡胶与金属骨架之间粘合性能的影响,证明了等离子处理对过氧化物硫化氟橡胶粘合有一定的改善效果,并提出了过氧化物硫化氟橡胶产品接头和骨架类产品的生产处理工艺,对生产有一定的指导作用。     

汽车燃油胶管内层氟橡胶及填料品种的研究

考察了汽车燃油管内层氟橡胶混炼胶和填料对性能的影响，并对燃油胶管的挤出特性进行了初步分析。结果表明：对燃油管内层氟橡胶而言，三元氟橡胶使用效果优于二元氟橡胶；补强体系对氟橡胶耐油性能没有明显影响；BaSO4可以改善氟橡胶挤出特性。     

氟橡胶新品种

前言去年,日本国氟橡胶市场售量突破了1,000吨大关。随着氟橡胶使用范围的拓展,市场对氟橡胶提出了各种各样要求,生产厂家为此开发了多个新品种。日本大金公司,自开始出售由三元体系组成的、可用胺类化合物硫化的氟橡胶G—501”以来,已陆续开发了多个氟橡胶新品     

氟橡胶的再生与应用

介绍了氟橡胶的特点和适应领域,研究了氟橡胶再生胶的制备方法及掺用氟橡胶再生胶对胶料物理性能的影响。试验结果表明,工厂适于采用机械法制取氟橡胶再生胶,氟橡胶配合中掺用２０份再生胶,对硫化胶物理性能影响不大,有些性能还可互补。     

碳纳米管在氟橡胶中的应用研究

研究了碳纳米管对氟橡胶性能的影响,包括无填料氟橡胶、炭黑补强氟橡胶和硅藻土填充氟橡胶的加工性能、机械性能,硅藻土填充氟橡胶的高温拉伸性能、导热性能、耐磨性能。结果表明,随着碳纳米管含量的增加,3组氟橡胶的转矩增大,硫化时间延长,硬度、拉伸强度、定伸应力、撕裂强度逐渐提高,拉断伸长率逐渐降低;对于硅藻土填充氟橡胶,高温下拉伸强度降低,但加入碳纳米管后,拉伸强度保持率提高;随着碳纳米管含量的增加,氟橡胶的导热性能、耐磨性能逐渐提高。用扫描电子显微镜(SEM)观察拉伸试样断面,可知碳纳米管在硅藻土填充的氟橡胶基体中只是局部分散均匀。     

环氧树脂改性氟橡胶乳液粘接性能研究

研究了环氧树脂乳液、胺固化剂对改性氟橡胶乳液粘接性能的影响。采用DSC、TG等手段对改性氟橡胶乳液固化反应活性和耐热性进行了表征。试验结果表明:环氧树脂乳液改性剂能明显改善氟橡胶乳液的粘接性能,改性氟橡胶乳液固化物5%热失重温度大于290℃,改性氟橡胶乳液在加热固化和室温固化条件下都有较高的固化度。     

氟橡胶生产、应用现状与发展趋势

随着我国汽车工业快速发展对氟橡胶需求日益增加，本文评述了氟橡胶生产、市场需求和应用，重点介绍氟橡胶的共混改性和加工技术及存在问题，分析并提出我国氟橡胶工业发展现状。     

不同填料对氟橡胶性能的影响

研究了3种填料(氟化钙、硫酸钡、炭黑)对氟橡胶力学性能及加工性能的影响.结果表明,采用氟化钙对氟橡胶补强作用最明显,但降低了压缩永久变形性能;而炭黑对氟橡胶的综合性能改善最佳.     

Modeling the vulcanization reaction of silicone rubber

Characterization of the vulcanization process of silicone rubber was achieved through the modeling of dynamic DSC tests. The Kissinger equation and the Kamal‐Sourour model were used to determine kinetic parameters that fit the experimental data. The technique allows for the determination of the activation energy through Kissinger's model, which is then used to mathematically determine the other five parameters for the Kamal‐Sourour model. This novel technique finds a physically meaningful activation energy. The method generates a single set of parameters that accurately models all scanning rates tested (1, 2.5, 5, and 10 K/min). Five formulations of liquid silicone rubber as well as one solid silicone rubber were tested and modeled. For each material, the models generated fitting parameters that were in agreement with the dynamic DSC scans. The models were used to compare the processing of the liquid and solid silicone rubber. The characterization of both materials demonstrates the lower processing time, temperatures, and energy consumption when processing liquid silicone rubber, as compared to processing of hard silicone rubber. POLYM. ENG. SCI., 47:675–683, 2007. © 2007 Society of Plastics Engineers.     

热塑性苯酚甲醛树脂的分子量、游离苯酚含量对胶料加工性能的影响

树脂补强体系下的橡胶硫化实际上是树脂网络和橡胶网络的形成以及相互穿插的过程,热塑性苯酚甲醛树脂的分子量以及游离酚含量势必会对树脂网络的形成产生影响,从而影响橡胶的硫化以及胶料的加工过程。本文就是制备出不同分子量的热塑性苯酚甲醛树脂以及不同游离酚含量的热塑性苯酚甲醛树脂,测试含有这些树脂胶料的加工性能,得出结论,并且用这些结论分析市售的热塑性苯酚甲醛树脂对胶料加工性能的影响。     

环境友好型高芳烃橡胶填充油的现状和探索

介绍了环境友好型橡胶填充油的研究背景、判定标准和检测方法,分析了以中国石化高桥石化公司2种糠醛精制抽出油为原料调合得到的橡胶填充油的质量指标,认为其符合普通高芳烃橡胶填充油的产品质量要求,但其多环芳烃含量高,还达不到环境友好型橡胶填充油的质量要求,并对生产环境友好型橡胶填充油的工艺方法提出了建议。     

Studying the continuous wet mixing process based on the silica formula

Studies show that the mixing process is one of the most critical steps in the rubber processing, which directly affects the performance and service life of rubber products. However, unjustifiable complexity, high processing time, and low mixing quality of the conventional mixing technologies restrict the development of the rubber industry. Aiming at the deficiency of rubber mixing technology at present, the wet mixing technology and continuous mixing technology are complementary to each other, and the continuous wet mixing technology is developed. Then experiments are carried out to evaluate the performance of the proposed method. The obtained experimental results show that the wet mixing and continuous mixing technologies have synergetic effects, thereby simplifying the mixing process and improving the quality and continuity of the mixing process. It is found that the continuous wet mixing technology significantly improves the properties of the rubber compound compared with the conventional dry mixing method. The proposed method not only has reasonable processing properties but also significantly improves the physical, compressive fatigue, degree of dispersion and dynamic mechanical properties of the compound compared with those from the conventional dry mixing process.     

微生物凝固天然橡胶加工性能的研究

使用橡胶加工分析仪和流变仪,研究了微生物凝固天然橡胶的加工性能。结果表明,与5#标准天然橡胶相比,微生物凝固的天然橡胶具有较低弹性模量和损耗因子以及较短应力松弛时间和较快硫化速度。     

发展合成橡胶延伸加工技术

从我国合成橡胶企业单一原料型生产模式的转型目标出发，重点对丁腈橡胶、乙丙橡胶和热塑性弹性体等的延伸加工技术以及废橡胶的综合利用技术作了文献调研，并根据国内橡胶制品的市场需求，对延伸加工技术系列的开发提出了相应的建议。     

胶鞋胶面附着力强度的研究

胶面鞋附着力的波动，会直接影响到其内部质量，物理性能是否达到国际标准。而这一标准直接体现在胶面鞋与鞋里布之间的粘着力。通过改变配方及加工工艺，使胶面鞋附着力达到国际标准。     

研发工程橡胶加工新技术与新设备的分析与探讨

阐述了在橡胶止水带系列制品和橡胶支座制品加工中的新技术与新设备，并与传统的技术和设备进行比较、分析和讨论，最终认为研发有关工程橡胶加工新技术与新设备是可行的。同时，对研制止水带连续硫化联动生产线和研制橡胶支座注射成型技术与全套设备进行了技术风险评估。     

Influence of processing conditions on the rheological behavior of crumb tire rubber‐modified bitumen

Traditional or technological studies about crumb tire rubber‐modified bitumens (CTRMBs) do not provide detailed rheological information. In that way, this article describes the influence of processing conditions on the linear viscoelastic and viscous behaviors of CTRMBs. The results of the study reveal an exponential increase in dissolved/dispersed rubber with processing temperature and, therefore, lower solid content that affect the rheological behavior in different ways. No influence of the processing device was observed, probably due to the fact that processing temperature (180°C) was not high enough to break up the crosslinked network of the rubber. The presence of rubber particles avoids the negative hardening effects observed for unmodified bitumens, resulting in a more flexible binder at low temperature. At high in‐service temperature, better rutting resistance would also be expected for CTRMBs. Flow results at 135°C indicates that modified bitumens can satisfy the AASHTO MP1 requirements if high‐enough shear rates are reached. All the CTRMBs studied present segregation, due to rubber settling during storage at high temperature, although an increase in processing temperature seems to enhance its stability. The results obtained seem to indicate that the optimum CTRMB processing temperature is 210°C. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 1683–1691, 2007     

氟橡胶结构特点及其应用和发展探源

介绍了氟橡胶结构特点、主要性能、加工技术、应用领域和实例.分析了氟橡胶的发展趋势.