内增塑剂

内增塑剂DOM制备方法的改进

Improved method of preparation for internal plasticizer DOM

以顺丁烯二酸酐和2-乙基己醇为原料，环己烷为带水剂在1-甲基3-丁基咪唑离子液体存在下制备了内增塑剂顺丁烯二酸二（2-乙基己）酯。

The internal plasticizer was synthesized from maleic anhydride and 2-ethyl-hexanol as starting materials , cyclohexane as dehydrator using 1-methyl-3-butyl-imidazole / AlCl_3 catalyst .

研究发现：链转移剂和测试频率对偶极子去极化程度基本没有影响，后固化工艺能减小试样的偶极子去极化程度，内增塑剂和交联剂都能增大试样的偶极子去极化程度。

It was showed that post-curing may increase , plasticization and cross-linking may decrease the depolarization , while transfer agent and testing frequency had no effect .

实验发现，泥料的含水量应该保持在10%～20%的范围内，复合增塑剂含量保持在3～7%为宜。

The result of experiment show that the best content of water is in the range of 10 % ~ 20 % , and the CMC is about 3-7 % .