The alloys of pa11 / pe - mah / pe and pah / epdm - mah / pe - mah / pe are prepared . through the mechanical property study , the optimum reactive compounding formula is confirmed . it is discussed in detail that each factor affects on the mechanical property and aging property of alloy materials 重点制备了pa11 pe - mah pe和pa11 epdm - mah pe - mah pe两种合金，通过力学性能的研究，确定了最佳反应配方，并详细讨论了影响合金力学性能和老化性能的各种因素。
As a result , increases composite ' s using temperature and styengthens ; stabilizes ptc intensity . but it hinders hdpe recrystallizability ; raises heat treatment composite ' s room temperature resistivity , weakens the heating aging property of the composite ; lowers the composite ' s hot decomposition temperature 通过对交联炭黑填充hdpe复合导电材料电性能的研究，认为交联的作用是遏制了熔融态材料分子的活动性，提高了材料的使用温度，增强和稳定了ptc强度。
Literatures on the topic of used rubber modified road asphalt were overviewed . by using the used rubber powder , the problem of temperature sensitivity if road asphalt could be resolved . a large number of experiments were conducted on the topic of rubber modified asphalt and the aging properties 本论文用废轮胎胶粉对道路沥青材料进行改性进行了文献综述,利用胶粉作为改性剂,以解决我国道路沥青温度敏感性大的问题,进行了橡胶粉改性沥青性能试验、改性沥青老化后性能等大量试验。
On the basis of the past achievement all over the world , the effect of aging on softening temperature , penetration and ductility . the relationship between the dosage of rubber powder and aging properties , the size of rubber powder and aging properties were studied . the feasible method to improve the aging properties of asphalt was found 通过试验结果分析对比给出沥青的耐老化性与废橡胶粉掺量的关系、沥青的耐老化性与废橡胶粉粒径的关系,从而得出提高废橡胶粉改性沥青抗老化性能的有效措施。
The useful life curves of gan - based blue led with al2o3 and sic substrate is fit single exponential function [ i = i1 + i2exp ( - t / ) ] . fron this function , we could get aging information of led about stable inteneity 1 , decay intensity i2 and decay time . the novel method of evaluating aging properties of leds was put forward 用单指数函数拟合了发光二极管的光衰减曲线[ i = i _ 1 + i _ 2exp ( t / ) ] ，这个关系式可以给出三个信息：稳定光强、衰减光强、衰减速度，提出了更加合理的评价led老化性能的方法。
6013 aluminum alloys containing different main alloying elements minor alloying elements were designed and prepared by ingot - metallurgy processing . the tesile mechanical and aging properties of the studied alloys were tested ; the microstructure of those alloys were observed and analyzed using optical microscope ; the influence of main alloying element mg , si , minor alloying elements mn , cu and homogenization process on the structure and property of studied alloys were studied 采用铸锭冶金方法，设计并制备了不同合金元素含量的6013铝合金，将铸锭热加工以后，测试了合金的拉伸力学性能和时效性能，采用金相显微镜观察分析了合金的显微组织结构，研究了合金中主合金元素mg 、 si ，微量元素mn 、 cu添加量、均匀化温度和时间对合金组织和性能的影响。
