| 恒粘处理方式对天然橡胶性能的影响 |
| Effect of Treatment of NR to Maintain Constant Viscosity on Its Properties |
| 投稿时间：2018-11-09 修订日期：2018-11-09 |
| DOI：10.12136/j.issn.1000-890X.2019.09.0675 |
| 中文关键词: 天然橡胶 恒粘处理 天然胶乳 凝胶 盐酸羟胺 门尼粘度 |
| 英文关键词: NR constant viscidity treatment natural rubber latex coagulum hydroxylamine hydrochloride Mooney viscosity |
| 基金项目:云南省现代农业天然橡胶产业技术体系建设专项（2018KJTX008-06）；云南省科研院所技术开发研究专项（2015DC013） |
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| 中文摘要: |
| 研究鲜天然胶乳中添加盐酸羟胺及湿凝胶粒进行盐酸羟胺溶液浸泡和喷淋的3种恒粘处理方式对天然橡胶（NR）性能的影响。结果表明，经恒粘处理后，NR的塑性初值和门尼粘度减小，塑性保持率增大，拉伸性能下降。3种恒粘处理方式均可有效减小NR的门尼粘度，其中鲜天然胶乳恒粘处理NR的恒粘保持效果最好，湿凝胶粒喷淋恒粘处理NR的恒粘保持效果最差。 |
| 英文摘要: |
| The effects of three different treatment methods of natural rubber（NR） to produce constant
viscosity NR，including adding hydroxylamine hydrochloride to flash natural rubber latex，soaking natural
coagulum granules in hydroxylamine hydrochloride solution and spraying hydroxylamine hydrochloride
solution to natural coagulum granules，on the properties of NR were studied. The results showed that after
treatment，the initial plasticity number and Mooney viscosity of NR decreased，the plasticity retention
index increased，and tensile properties deteriorated. All of the three treatment methods reduced the Mooney
viscosity of NR effectively，and the viscosity retention of the compound treated by using the first method was
the best while that of the compound treated by using the last method was the worst. |
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