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VAMA高吸水性树脂是聚乙烯醇与聚丙烯酸钠的共聚体。国外广泛作为医用吸水剂、药品缓释剂与农用吸水保水剂,重庆化工研究院在国内首先制成了VAMA产品。本文报道了VAMA安全性研究。 1.给小鼠一次灌胃1％VAMA水溶液1m1(大于此浓度,溶液太粘无法通过胃管),观察7天,结果未见异常,故测不出LD_(500)大鼠亚急性毒性试验表明,本品
VAMA superabsorbent resin is a copolymer of polyvinyl alcohol and sodium polyacrylate. Abroad as a medical absorbent, drug release agent and agricultural water absorbent, Chongqing Chemical Industry Research Institute in the country made the first VAMA products. This article reports on VAMA safety studies. 1. The mice were treated with 1 ml of 1% VAMA solution (above this concentration, the solution was too viscous to pass through the gastric tube) and the mice were observed for 7 days. The results showed no abnormalities and no subacute toxicity test was found in LD 500 rats Show that this product