中文摘要：

采用热重分析法（TGA）和差热分析法（DTA）研究了自然微生物凝固天然橡胶（N—NR）和淀粉微生物凝固天然橡胶（S—NR）在空气气氛中的热降解行为，为探索新的天然胶乳加工工艺提供科学依据。研究结果表明：（1）实验条件下，两种凝固方式的橡胶在空气气氛中的降解均为多步反应。（2）S—NR的抗氧化性能较N-NR好。

英文摘要：

To provide scientific reference to the coagulation process of NR latex, the thermooxidative degradation of nature rubber produced with starch coagulation （S-NR）and nature rubber produced With natural coagulation（N-NR）was studied by TGA-DTA under air atmosphere. The resuhs showed that the thermal oxidative degradation of S-NR and N-NR was a multi-step reaction and the thermal stability of S-NR was greater than that of N-NR.