1) aging rate
老化速率
1.
With parameter study,property changes,aging rate of asphalt and the difference of aging mechanism were analysed under different aging conditions.
为了研究沥青的老化行为及抗老化性能,将沥青进行旋转薄膜烘箱老化(RTFOT)和60℃烘箱老化试验,并从不同使用年限的路面回收老化的沥青,采用非线性微分动力学模型对不同老化方式的沥青粘度进行拟合,根据模型参数讨论了沥青在不同老化条件下的性质变化和老化速率,并分析了老化机理的差异。
2.
The results show that the nonlinear aging equation can predict the attenuation of penetration,soft point,viscosity and ductility in thermal and oxygen aging,and can quantify the aging rate and the ultimate degree.
针对沥青热氧老化预测的不足,采用旋转薄膜烘箱试验研究了克拉玛依90#沥青在热氧老化过程中的针入度、软化点、粘度、延度与老化时间的关系,建立了预测沥青因热氧老化引起的性能衰减规律和老化速率的非线性老化方程。
2) Accelerated aging
加速老化
1.
General Aging Theory and Method for Accelerated Aging of Medical Devices;
医疗器械加速老化实验确定有效期的基本原理和方法
2.
Research advances in the accelerated aging methods of polymeric composites (PMC)are reviewed.
概述了聚合物基复合材料加速老化研究方法的进展,从试验方法、老化机理等方面着重介绍了湿热老化、腐蚀侵蚀和人工气候老化,总结了高置信度、高可靠度评估复合材料工作寿命的方法,并展望了复合材料加速老化研究方法。
3.
The accelerated aging experiments for PMMA specimens have been conducted for 70 days under the conditions of tap water air(50 ℃ temperature),and macro-mechanical characteristics of PMMA were tested at different time during the experiments,and structure difference were analyzed between samples before aging and after aging by methods of GPC and DSC.
研究是在自来水(50℃温度)条件下对有机玻璃做了70 d(天)左右的人工加速老化试验,然后对不同老化时间的有机玻璃试样进行了宏观力学性能测试,并进一步利用凝胶渗透色谱法(GPC)、示差扫描量热法(DSC)等手段,分析了老化前后有机玻璃试样的结构和组成差异,结合老化前后有机玻璃力学性能的变化,揭示了有机玻璃在自来水条件下的老化规律和老化机理。
3) accelerated weathering
加速老化
1.
Reactive coatings of hydroxyl polyacrylic resin and trimer of hexamethylene-1,6-diisocyanate(HDI) were carried out through the fluorescent ultraviolet-condensation type of accelerated weathering test at 50 ℃-60 ℃ for 2000 h and natural exposure in Lhasa for 19 months.
羟基丙烯酸树脂与六亚甲基二异氰酸酯(HDI)三聚体组成的反应型涂料,涂膜在50℃-60℃经过荧光紫外线/冷凝气候加速老化2000 h和在拉萨曝露19个月,涂膜光泽随UV照射或曝露时间呈指数函数或S形曲线下降变化趋势,涂料的老化与紫外线辐射强度和树脂化学结构有关,还与温度和湿度有关。
4) Accelerated ageing
加速老化
1.
of natural weathering and accelerated ageing for woodbased panels indicated that threeyear-weathering and ageing by BSmethod showed the same degree of effect.
人造板的室外自然老化和加速老化，以及两者之者的等效性试验结果表明：３年的自然老化和ＢＳ法的老化程度相当，喷蒸和沸煮或夏天的高温和雷雨对板材性能影响最显著，性能下降幅度随暴露时间的延长而减少；ＰＦ胶胶结或纤维间靠木素胶合和氢键结合的人造板较氨基树脂制造的人造板耐候性强。
2.
The internal and external factors that influence the storage stability of SGAadhesive was studied in detail and the influence was analysed which was caused by ad-dition of prepolymer,system of oxidation and reduction,stabilizer and water with themethod of infrared spectroscopy analysis and accelerated ageing and sevice test.
通过加速老化试验,对影响SGA胶贮存稳定性的组份因素和外界因素进行了研究。
5) accelerated degradation
加速老化
1.
Research into characteristics of the accelerated degradation GaN/Al_2O_3 white LEDs;
GaN基白光LED电流加速老化特性研究
6) fast aging
快速老化
1.
Testing Method Research on Fast Aging of Diesel Oxidation Catalyst;
车用柴油机氧化催化器快速老化试验方法的研究
2.
The fast aging of polymer materials in the natural environment of western China is a popular phenomena.
高分子材料在西部严酷环境下普遍存在快速老化的现象。
补充资料：比勒-戴维斯老化试验机
分子式：
CAS号：
性质： 用于硫化橡胶灼加压氧老化试验和加压空气老化试验的试验仪。在增加氧和空气压力时所得的结果比吉尔老化试验箱法更接近自然老化的结果。
CAS号：
性质： 用于硫化橡胶灼加压氧老化试验和加压空气老化试验的试验仪。在增加氧和空气压力时所得的结果比吉尔老化试验箱法更接近自然老化的结果。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条