1种FSJ型固态粉末消泡剂的研制

Research and Preparation of a FSJ Type Solid Powder Defoamer

以端基低含氢硅油（PHMS）和烯丙醇聚氧烷基醚（F-6）为原料,在氯铂酸用量以Pt计为物料总质量的6×10^-6的催化下,按n（Si—H）：n（C=C）=1：1.1在反应温度为115~120℃、反应时间4.5 h条件下,通过硅氢加成获得聚醚改性硅油（PESO）,再与甘油聚醚（GPE）混合成复合消泡活性成分。将该复合消泡活性成分用FR-3型乳化剂在70-90℃乳化成混料,然后将FW-5型载体投入混合机,搅拌、粉碎、过筛得到FSJ型固态粉末消泡剂,其优化组成质量分数分别为PESO 18%,GPE 8%,FR-3型复合乳化剂4%、FW-5型复合无机盐70%。该消泡剂适用温度范围广,于酸碱、中性介质起泡液消泡、抑泡效果好。

With end group low-hydrogen silicon oil(PHMS) and allyl alcohol polyether(F-6) as raw material, catalyzed under the condition that chloroplatinic acid dosage in Pt shared 6×10-6of the total mass and molar ratio of(Si—H) and(C=C) was1:1.1 with the temperature between 115~120 ℃ for 4.5 h, polyether modified silicon oil(PESO) was produced through hydrosilylation, then mixed with glycerol polyether(GPE)to produce active ingredients of composite defoaming. Emulsify the active ingredients of composite defoaming with FR-3 emulsifier between 70~90 ℃ into mixed material; and put FW-5 carrier into the mixing machine. After stirring,crashing and filtering, FSJ type solid powder defoamer was produced, which had the best composition and mass fraction of 18 PESO,8 GPE, 4 FR-3 type compound emulsifier and 70 FW-5 type composite inorga. With wide range of application temperature, this defoamer is effectual in defoaming and foam inhibition in acid-base, neutral medium and foam fluid.