It can be known from the results of accelerate ageing that accelerated ageing in an ageing oven can change both the physical and chemical structure of plastics, and decrease the mechanical properties of specimens much. 加速老化实验结果表明:老化箱中的加速老化既可改变试样分子的物理结构又可改变其化学结构,从而改变粘数值;
The effect of vulcanization time and vulcanization systems on thermal ageing property of the clay-rubber masterbatch were investigated by air oven ageing test and thermal analysis. 用热空气老化试验和热分析法讨论了硫化时间和硫化体系对粘土胶热氧老化性能的影响。
Its thermal stabilities have been measured by heat-ageing oven test when incorporated into PVC. 并用热老化的方法测试了其对PVC的热稳定性。