| 赵建林,雍占福.水洗颗粒烟胶混合橡胶的干燥工艺条件优化[J].橡胶科技,2021,19(8):0393-0396. |
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| 水洗颗粒烟胶混合橡胶的干燥工艺条件优化 |
| Optimization of Drying Process Conditions for Water Washed Granular Ribbed Smoke Sheet Mixed NR |
| 投稿时间：2021-02-24 修订日期：2021-02-24 |
| DOI：10.12137/j.issn.2095-5448.2021.08.0393 |
| 中文关键词: 水洗颗粒烟胶混合橡胶 天然橡胶 干燥工艺 塑性初值 塑性保持率 门尼粘度 生产效率 |
| 英文关键词: water washed granular ribbed smoke sheet mixed NR NR drying process initial plasticity value plasticity retention index Mooney viscosity production efficiency |
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| 中文摘要: |
| 对新开发的水洗颗粒烟胶混合橡胶的干燥工艺条件进行优化，对干燥温度和干燥时间两大主要工艺条件进行变量分析，确定了优化的干燥工艺条件：高温段温度为126 ℃、低温段温度为116 ℃、步进干燥时间为150 s。在此优化干燥工艺条件下，水洗颗粒烟胶混合橡胶的塑性初值、塑性保持率均达到较高的水平且稳定性较好，门尼粘度稳定在75～80之间，同时胶块干燥较彻底、不发粘，胶块内部没有水汽聚集和局部发白现象，产品质量和生产效率最佳。 |
| 英文摘要: |
| The drying process of the water washed granular ribbed smoke sheet（RSS） mixed NR was optimized，and the optimized drying process was determined by comparing the two main factors of drying temperature and drying time.High temperature section temperature was 126 ℃，low temperature section temperature was 116 ℃ and step drying time was 150 s.The results showed that the initial plasticity value and plasticity retention index（PRI） of the water washed granular RSS mixed NR were relatively high and stable at the optimized drying process，the Mooney viscosity could be stabilized between 75 and 80.At the same time，the drying was thorough and the rubber block was not sticky.There was no water vapor accumulation in the rubber block and no local whitening phenomenon，the product quality and production efficiency were the best. |
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