D, L - lactide was prepared L - lactic acid with zinc acetate as catalyst, crude yield was 86.

以D, L - 乳酸为原料,在催化剂乙酸锌存在下,通过脱水环化, 制备出粗产率为86.

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Compared with zinc glycin and zinc stearate zinc nitrilotiracetate achieved a better result in thermal stability.

结果表明,氨三乙酸锌对PVC具有 较好的长期热稳定性能,与硬脂酸钙具有较好的协同作用.

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The results show that zinc acetate - stearic acyloxy has thermal stability and synergistic effect with calcium stearate.

结果表明,硬脂酰氧基乙酸锌对PVC具有 一定的热稳定性能,与硬脂酸钙具有较好的协同作用.

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