| 天然胶乳最佳成膜工艺条件的研究 |
| Study on Optimum Film Forming Conditions of Natural Latex |
| 投稿时间：2018-08-08 修订日期：2018-08-08 |
| DOI：10.12136/j.issn.1000-890X.2019.10.0767 |
| 中文关键词: 天然胶乳 胶膜 成膜工艺条件 浸渍时间 温度 固形物质量分数 厚度 |
| 英文关键词: natural latex latex film film forming condition immersion time temperature solid mass fraction thickness |
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| 中文摘要: |
| 采用直浸法制备天然胶乳薄膜，研究胶乳浸渍时间、胶乳浓度和温度以及玻璃模型温度对胶膜厚度的影响。结果表明：随着胶乳浸渍时间的延长，胶膜厚度增大迅速然后趋缓，最佳胶乳浸渍时间为30 s；胶膜厚度与胶乳固形物质量分数成正比，但在实际生产中胶乳的固形物质量分数以0.5左右为宜；胶膜厚度随着胶乳温度和玻璃模型温度升高呈先增大后减小的趋势，成膜的最佳胶乳温度为25 ℃，最佳玻璃模型温度为45～50 ℃。 |
| 英文摘要: |
| The natural latex film was prepared by direct immersion method. The effect of the immersion
time，the solid mass fraction and temperature of the latex and the temperature of the glass mold surface on
the thickness of latex film was investigated. The results showed that，with the increase of the latex immersion
time，the film thickness initially increased rapidly and then slowed down. It was found that the optimum
latex immersion time was 30 s. The film thickness was proportional to the solid mass fraction of the latex，
but the latex with the solid mass fraction of about 0. 5 was generally preferred in the actual production.
Film thickness increased first and then decreased with the increase of the latex temperature and glass mold
temperature. The optimum latex temperature for film formation was about 25 ℃，and the optimum glass mold
temperature was 45～50 ℃. |
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