| 掺杂胶乳快速定性分析方法的研究 |
| Study on Rapid Qualitative Analysis of Doping Latex |
| 投稿时间：2018-02-26 修订日期：2018-02-26 |
| DOI： |
| 中文关键词: 天然胶乳 掺杂胶乳 凝胶 压片机 生胶片 定性分析 |
| 英文关键词: natural latex doping latex gel sheeter sheet rubber qualitative analysis |
| 基金项目:海南省自然科学基金项目（214036），中国热带农业科学院基本科研业务费专项（1630082016003） |
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| 中文摘要: |
| 研究掺杂胶乳快速定性分析方法。对新鲜原胶乳和掺入质量分数为0. 05的淀粉、尿素、双灰粉、石灰粉的掺杂胶乳进行对比试验，结果表明：胶乳不凝固压片而直接用圆盘自动进样热辐箱式胶乳样品干燥仪干燥后，掺杂胶乳胶片的颜色和质感与原胶乳胶片有较大的差别；胶乳在乙酸的作用下凝聚成团，用凝胶样品压片机压制成生胶片，在用酸量、压片机压力、压片厚度和生胶片尺寸等条件相同的情况下，掺杂胶乳生胶片的撕裂点和拉伸长度明显低于原胶乳生胶片。圆盘自动进样热辐箱式胶乳样品干燥仪干燥试验或者生胶片物理性能试验可以用作现场掺杂胶乳质量的快速定性分析方法，且操作简单，耗时短，设备简易便携。 |
| 英文摘要: |
| The rapid qualitative analysis methods of doping latex were studied.The contrast test of fresh latex and the doped latex of starch，urea，dusts and lime powder with mass fraction of 0.05 were carried out.The results showed that，when the latex without solidification and pressing was directly dried by using the disc automatic sampling hot box type latex sample dryer，the color and texture of the doping latex film were quite different from that of the fresh latex film.The latex were conglomerated under the effect of acetic acid and compressed into sheet rubber with gel sample sheeter.Under the conditions of same amount of acid，sheeter pressure，sheeting thickness and sheet rubber size were consistent，the physical properties such as tear point and tensile length of sheet rubber of doping latex were obviously lower than that of sheet rubber of fresh latex.The drying test by disc automatic sampling hot box type latex sample dryer or the physical property test on sheet rubber of latex could be used as field rapid qualitative analysis methods for the quality of doping latex，and applied in the condition of simple operation，shorter time，and simple and portable equipment. |
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