| 第 35 卷第 1 期 |  | Vol. 35 No. 1 | | 2005 年 2 月 | Feb 2005 |
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所屬欄目：其它
聚丙烯透明改性劑的合成及分離純化研究 |
| 禹練英(湖南化工職業(yè)技術(shù)學(xué)院; 湖南株洲) |
| 摘 要：利用正交試驗法對DBS的合成及純化條件進(jìn)行了優(yōu)化,得出了優(yōu)惠工藝條件:原料中苯甲醛與山梨醇摩爾比2.2∶1.0,環(huán)己烷與甲醇體積比為 70∶30,攪拌速率和反應時(shí)間分別是450 rpm和5 h,在此條件下合成DBS,并用環(huán)己烷/丙酮混合溶劑提純,可以得到99%DBS,其收率達到82.9%。 |
| 關(guān)鍵詞：聚丙烯（PP）; 增透劑; 二亞芐基山梨糖醇（DBS） |
| 中圖分類(lèi)號：TQ223.1 文獻標識碼：A 文章編號：1009-9212(2005)01-0047-03 |
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| Synthesis and Separate-purification of Clarity Modifier of Polypropylene |
| YU Lian-ying （Hunan Chemical Industry Professional Technology College; Zhuzhou 412004; China） |
| Abstract：Dibenzylidene sorbitol( DBS) was synthesized and puried using orthogonal experiment method ,The optimum condition as follows: the mole proportion of benzaldehyde and sorbitol is 2.2∶1.0, the volume proportion of cyclohexane and methanol is 70∶30, and rate of mix round 450rpm,reaction time 5 h, in this condition, DBS was purified in the mixture of cyclohexane and propanone, and highpurity DBS was gotten, the recovery rate was 82.9%. |
| Key words：polypropylene; antireflectical agent; dibenzylidene sorbitol |
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收稿日期：2004-09-10
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