热辐气动快速测定天然橡胶新鲜胶乳干胶含量的应用

Application Research on Dry Rubber Content of Natural Rubber Latex Rapidly Determined by Thermal Radiation Pneumatics

阐述热辐气动法快速测定天然橡胶胶乳干胶含量的工作原理和测定方法,对试验参数和测定条件进行分析研究,并将此方法与烘箱干燥法(标准法)测定干胶含量进行比较。结果表明:2种方法测定结果相符合,结果准确可靠,但烘箱干燥法测定需几个小时,而热辐气动法将胶乳样品的干燥时间缩短在2 min之内,大大提高了分析效率,实现了快速、准确测定的目标。

This paper elaborated the operational principle and determination method for determining dry rubber content of rubber latex with rapid thermal radiation pneumatics method and carried out analysis research on the test parameters and determination conditions. Comparing this method with the oven drying method （standard method）, the result showed that the determination results of these two methods coincided with each other and the results were accurate and reliable. Meanwhile, by using this method, the drying time of the latex sample could be reduced to less than2 minutes, which greatly improved the analysis efficiency and achieved the goal of rapid and accurate determination.