田菁胶(sesbania gum)是由豆科植物田菁的种子胚乳中提取的一种天然多糖类高分子物质,其主要成分为D-半乳糖和D-甘露糖,以1:2组成。田菁胶可用做食品的乳化剂、增稠剂和稳定剂,以改善食品的质量。这主要是由于它溶于水中形成水溶性亲水胶,可使增稠性、稳定性和乳化性明显增高。
以田菁胶、磨芋胶、多聚甲醛和凝胶增强剂为主要原料,合成新型的无固相凝胶定时堵剂NSG - 2。
NSG-2 solid-free gel timing plugging agent is prepared with sesbania gum, paraformaldehyde and gum extender as main materials.
目前的3种压裂液对葡萄花油层污染均较为严重,田菁胶、香豆胶、瓜胶压裂液对岩心渗透率损害率分别为27.89%,18.51%,26.06%。
These 3 kinds of fracturing fluids may seriously contaminate Putaohua reservoir. The damage rate of sesbania gum, fenugreek gum and guar gum were 27.89%, 18.51%, 26.06% respectively.
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