TPV注塑件、把手及二次成型件的设计

介绍了TPV注塑件、把手和二次成型件的设计方法及注意事项。     

Preparation and properties of carbon black filled EPDM/POE thermaplastic vulcanizates

TPVs filled with different amounts (0–50 phr) of carbon black were prepared via melt mixing by dynamic vulcanization in Haake plasticorder at 150°C and 40rpm and then the properties of them were studied. Torque-time curves showed that the curing degree reached a biggest value at 10 phr and then decreased with the increase of filling content while the curing rate was always rising. Mechanical properties such as tensile strength, tear strength, modulus as well as hardness increased with the increment of carbon black content while the tension set at break was reduced dramatically. Two phase morphology was observed by SEM photographs and the effect of carbon black on curing extent was testified. To illuminate the effect of carbon black, curometer curves and carbon black dispersion pictures were also analyzed. Rubber processing analyzer (RPA) experiments proved that there was a progressive nonlinear behavior, which was more and more clearly expressed with the increment of carbon black content and could be explained via the Payne effect. But the TPVs containing highest carbon black exhibited the fastest drop of G′ with increasing strain amplitude as obtained from the value of G₀′ − G_∞′. The order of tanδ at different carbon black content was tanδ (10 phr) < tanδ (0 phr) < tanδ (30 phr) < tanδ (50 phr) at lower strain amplitude. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012     

热塑性聚烯烃弹性体在国内的发展及需求研究

通过对几种热塑性聚烯烃弹性体生产工艺的比较，以及对国内同类产品的生产和市场需求情况的分析，认为动态全硫化法生产的热塑性聚烯烃弹性体是需求增长最快的新型橡胶产品之一，具有较大的利润空间。     

Heat transfer and thermophotovoltaic power generation in oil-fired heating systems

The focus of this study is the production of electric power in an oil-fired, residential heating system using thermophotovoltaic (TPV) conversion devices. This work uses experimental, computational, and analytical methods to investigate thermal mechanisms that drive electric power production in the TPV systems. An objective of this work is to produce results that will lead to the development of systems that generate enough electricity such that the boiler is self-powering. An important design constraint employed in this investigation is the use of conventional, yellow-flame oil burners, integrated with a typical boiler. The power production target for the systems developed here is 100 W – the power requirement for a boiler that uses low-power auxiliary components. The important heat transfer coupling mechanisms that drive power production in the systems studied are discussed. The results of this work may lead to the development of systems that export power to the home electric system.     

聚光型热光伏系统结构优化分析

利用净辐射方法建立了聚光型TPV系统的光谱辐射换热模型,讨论了聚光挡板对数的影响。结果表明,对该文讨论的系统结构,在电池面积小于一定值时,采用挡板的系统中可转换净辐射密度均明显大于无挡板的情况,且电池面积越小,净辐射密度越大;随可转换净辐射功率(与电池输出功率成正比)的减小,对应于最小电池面积和最大光谱效率的系统逐渐由开始的二对挡板转变成四对挡板的系统。     

热光伏技术基本原理与研究进展

热光伏技术是将受热高温热辐射体的能量直接转换成电能的技术.由于热光伏具有可使用广泛的热源及较高的热电转换效率等优点,因此具有较好的发展前景.在调研分析的基础上,阐述了热光伏技术的原理及系统组成,综述了热光伏技术的研究和发展动态.