In order to reduce the content of free formaldehyde,the synthesis method of DMDMH by adding allantoin was conducted.It could control the content of free formaldehyde not more than 0.1％.The yield of product was above 90％ and its stability met the demands of the production standards.%在DMDMH的合成中加入尿囊素,采用一次性合成方法,可减低产品中游离甲醛额含量,控制游离甲醛含量≤0.1％,产品收率达到90％以上,稳定性达到生产要求.
展开▼
